JP5876023B2 - Powder detergent composition for clothing - Google Patents

Description

  The present invention relates to a powder detergent composition for clothing and a hand-washing laundry method.

  There are two types of washing methods: hand washing and washing machine washing. In recent years, there has been a tendency for washing machine washing to increase due to the widespread use of washing machines, but there are still many needs for hand-washing washing from the viewpoint of stain removal and economic efficiency. In addition, hand washing is often employed so that washing can be performed with as little water as possible in regions where water resources are small in the world.

  In hand-washing and washing machine washing, especially hand-washing, in addition to detergency, the richness of foaming during washing and the ease of rinsing after washing are important issues. Particularly in areas where water resources are scarce, washing is strongly desired in which the foam disappears quickly in the rinsing process and the rinsing is completed with a small amount of water. However, in order to improve rinsing, it is necessary to use a surfactant with good defoaming. However, when such a surfactant is used, the foamability during washing is greatly impaired. In particular, in the case of hand-washing, there are cases where detergent is added if foaming is not good at the time of washing. Therefore, it was an important issue to balance the richness of foaming during washing and the ease of rinsing after washing.

  Patent Document 1 discloses a cleaning composition containing a nonionic surfactant, a specific anionic surfactant, and a fatty acid having 8 to 18 carbon atoms or a salt thereof under specific conditions. It is disclosed that the detergent composition has excellent foaming properties, and the foam disappears quickly in the rinsing step, and the rinsing is completed quickly. Patent Document 2 discloses a detergent composition that controls foaming and turbidity during a rinsing cycle, which includes a surfactant, a soluble detergency builder, a fatty acid soap, a quaternary ammonium salt, and a silicone fluid foam suppressor. . Patent Document 3 discloses a detergent composition including a surfactant, an enzyme, a sulfite, a polycarboxylic acid polymer, and a zeolite with an improved cleaning effect by the enzyme. Patent Document 4 discloses a granular detergent composition comprising a surfactant, a mixture of carbonate and sulfate, silicate, polycarboxylate, and PEG, and substantially free of aluminosilicate and phosphate. Is disclosed. Patent Document 5 discloses a detergent composition that exhibits high detergency by combining a specific quaternary ammonium salt and cellulase.

JP 2011-89107 A JP 62-230900 A JP-A-63-41596 International Publication No. 98/20105 Pamphlet European Patent Application No. 0495554

  An object of the present invention is to provide a powder detergent composition for clothing that can maintain the detergency at the time of washing, has excellent foaming properties, and disappears quickly in the rinsing step, and the rinsing is completed quickly.

The present invention
(A) Surfactant [hereinafter referred to as component (A)] 5 mass% or more, 40 mass% or less,
(B) a compound selected from carbonate and amorphous silicate [hereinafter referred to as component (B)],
(C) a compound selected from sulfate and metal chloride (hereinafter referred to as component (C)), and
(D) (D-1) one or more inorganic polyvalent metal ion capture builders selected from aluminosilicates, crystalline silicates and phosphates (hereinafter referred to as component (D-1)) 0% by mass or more, 15% by mass or less, (D-2) one or more organic polyvalent metal ion capture builders selected from carboxylic acid polymer compounds (hereinafter referred to as (D- 2 ) component) 0% by mass to 4% by mass Contains,
As the component (A), (A-1) a linear alkylbenzene sulfonate [hereinafter referred to as component (A-1)] and (A-2) an alkyl sulfate (hereinafter referred to as component (A-2)). Contains,
The total mass of the component (A-1) and the component (A-2) in the component (A) is 70% by mass or more,
The ratio of the mass of the component (A-1) to the mass of the component (A-2) [(A-1) component / (A-2) component] is 55/45 or more and 85/15 or less,
As the component (A-2), (A-2-1) an alkyl sulfate having 16 or more carbon atoms in the alkyl group (hereinafter referred to as the component (A-2-1)) is contained.
The ratio of the mass of the component (A-2-1) to the mass of the component (A-2) [(A-2-1) component / (A-2) component] is 0.4 or more and 1 or less,
The ratio [(A-2-1) / (A)] of the mass of the component (A-2-1) to the mass of the component (A) is from 0.05 to 0.3,
The ratio of the total mass of the component (A-1) and the component (A-2) to the mass of the component (B) [[(A-1) component + (A-2) component] / (B) component] is 25/75 or more and 67/33 or less,
The ratio of the total mass of component (A-1) and component (A-2) to the mass of component (C) [[(A-1) component + (A-2) component] / (C) component] is 11/89 or more and 67/33 or less,
The total content of the component (D-1) and the component (D-2) is 0% by mass or more and 15% by mass or less in the composition.
The present invention relates to a powder detergent composition for clothing.

  Moreover, this invention relates to the hand-washing washing method which wash-washes the to-be-washed | cleaned material which contacted the washing water containing the powder detergent composition for clothing of the said invention.

  According to the present invention, the rinsing can be completed quickly by maintaining the cleaning power at the time of cleaning, excellent foaming properties, and quickly disappearing bubbles in the rinsing process or by rinsing water with a small number of rinses. A garment powder detergent composition is provided.

[Component (A)]
The component (A) of the present invention is a surfactant and contains at least a linear alkylbenzene sulfonate of the component (A-1) and an alkyl sulfate of the component (A-2).

  The component (A-1) of the present invention is a linear alkylbenzene sulfonate. Those having an alkyl group having 10 to 15 carbon atoms are preferred from the viewpoints of cleaning performance and foamability. Examples of the salt constituting the component (A-1) include alkali metal salts such as sodium and potassium, alkanolamine salts, and alkaline earth metal salts such as magnesium and calcium. From the viewpoint of safety, an alkali metal salt is preferable, and sodium is more preferable.

  The component (A-2) of the present invention is an alkyl sulfate, and an alkyl sulfate having an alkyl group having 10 or more carbon atoms, more preferably 12 or more, and 24 or less is preferable. From the viewpoint of reducing environmental burden by using reproducible raw materials, the proportion of linear alkyl groups in all alkyl groups is preferably 50% by mass or more, more preferably 70% by mass or more, and more preferably 90% by mass or more. More preferably, 99 mass% or more is further more preferable, and 100 mass%, that is, (A-2) component is most preferably a linear alkyl sulfate.

  In the powder detergent composition for clothing of the present invention, as component (A-2), the alkyl group has 16 or more carbon atoms, preferably 16 or more and 24 or less, more preferably 16 or more and 20 or less, more preferably 16 or more. 18 or less, more preferably 16 alkyl sulfates (hereinafter also referred to as the component (A-2-1)). In a powder detergent composition for clothing containing a surfactant containing a linear alkylbenzene sulfonate and an alkyl sulfate, it may be desired to further improve the foamability and rinsability during the rinsing step. Accordingly, as a result of intensive studies, the present inventors have found that alkyl group carbon atoms that are generally used in clothing powder detergent compositions are alkyl group carbon atoms in place of alkyl sulfates having 12 to 14 carbon atoms. Focusing on alkyl sulfates [(A-2-1) component] having a number of 16 or more, and the presence of this (A-2-1) component in the composition under predetermined conditions, linear alkylbenzene sulfonate And it discovered that the foamability and the rinse property at the time of the rinse process of the powder detergent composition for garments which used alkyl sulfate together could be improved more. From this viewpoint, in the present invention, the surfactant used as the component (A) and the blending conditions thereof are specified.

  Examples of the salt constituting the component (A-2) include alkali metal salts such as sodium and potassium, alkanolamine salts, and alkaline earth metal salts such as magnesium and calcium. From the viewpoint of safety, an alkali metal salt is preferable, and sodium is more preferable.

  As the component (A) other than the components (A-1) and (A-2), sulfate esters of higher alcohol ethoxylates, paraffin sulfonates, α-sulfo fatty acid alkyl ester salts, α-olefin sulfonic acids Anionic surfactants selected from salts and fatty acid salts, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene alkyl phenyl ethers, sucrose fatty acid esters, sorbitan fatty acid esters, fatty acid alkanols Nonionic surfactants selected from amides and alkyl glycosides, di-long chain alkylamines having 8 to 18 carbon atoms in the alkyl group and polyoxyethylene adducts thereof, alkyl groups having 8 to 18 carbon atoms That is A cationic surfactant selected from a long-chain alkyl quaternary ammonium salt and a di-long-chain alkyl quaternary ammonium salt having an alkyl group having 8 to 18 carbon atoms, carbobetaine, sulfobetaine and hydroxysulfo One or more surfactants selected from the group consisting of amphoteric surfactants selected from betaines. Among these, nonionic surfactants are preferable, and polyoxyalkylene alkyl ether (carbon number of alkyl group: 10 or more and 15 or less, average added mole number of alkylene oxide, preferably ethylene oxide: 2 or more, further 4 or more, and 10 Hereinafter, 8 or less) is more preferable.

  When the powder detergent composition for clothing of the present invention contains a nonionic surfactant as the component (A), the content of the nonionic surfactant is in the composition from the viewpoint of improving detergency and foaming properties. , Preferably 2% by mass or less, more preferably 1.5% by mass or less, and from the viewpoint of improving detergency, preferably 0.1% by mass or more, more preferably 0.3% by mass or more, more preferably 0%. 0.5% by mass or more, more preferably 1% by mass or more.

  In addition, the content of the cationic surfactant is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, and more preferably 0.1% by mass or less in the composition from the viewpoint of suppressing a reduction in detergency. Is more preferable, and 0% by mass, that is, most preferably not contained. In the present invention, a di-long chain alkylamine having an alkyl group having 8 to 18 carbon atoms and a polyoxyethylene adduct thereof, and a mono-long chain alkyl quaternary having an alkyl group having 8 to 18 carbon atoms. Content of cationic surfactant selected from ammonium salt and di-long chain alkyl quaternary ammonium salt having alkyl group having 8 or more and 18 or less carbon atoms, among which alkyl group has 8 or more and 18 or less carbon atoms The content of a cationic surfactant selected from a mono long chain alkyl quaternary ammonium salt and a di long chain alkyl quaternary ammonium salt wherein the alkyl group has 8 to 18 carbon atoms, and more particularly an alkyl group The content of the mono long-chain alkyl quaternary ammonium salt having a carbon number of 8 or more and 18 or less is 0.5% by mass in the composition from the viewpoint of suppressing a reduction in detergency. Preferably lower, more preferably 0.3 mass% or less, more preferably 0.1 wt% or less, 0 wt%, i.e., it is most preferably not contained.

[(B) component]
Component (B) of the present invention is a compound selected from carbonates and amorphous silicates, preferably carbonates. The component (B) is preferably a water-soluble alkali inorganic salt. Regarding the component (B), “water-soluble” means that 1 g or more is dissolved in 100 g of water at 20 ° C. (B) As for a component, what melt | dissolves 5g or more in 100g of water at 20 degreeC, and also 10g or more is preferable. (B) As a component, the 1 type (s) or 2 or more types chosen from an alkali metal carbonate, an alkali metal hydrogencarbonate, an alkali metal percarbonate, and an amorphous alkali metal silicate can be mentioned. More specifically, one or more selected from sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium percarbonate and amorphous sodium silicate can be mentioned. From the viewpoint of cleaning performance, foaming properties, and solubility, the carbonate is preferably one or more selected from alkali metal carbonates, alkali metal hydrogen carbonates and alkali metal percarbonates, and alkali metal carbonates and One or more selected from alkali metal hydrogen carbonates are more preferable, and alkali metal carbonates are more preferable. In addition, when it contains percarbonate as (B) component, the ratio of percarbonate is 0.1 mass% or more in (B) component, Furthermore, 0.5 mass% or more, Furthermore, 1 mass% or more is preferable. And 30 mass% or less, Furthermore, 20 mass% or less, Furthermore, 10 mass% or less is preferable.

  Furthermore, from the viewpoint of improving the cleaning performance and foamability, in the present invention, the composition preferably contains at least carbonate as the component (B), and contains both carbonate and amorphous silicate. More preferably. In the case where the composition of the present invention contains both carbonate and amorphous silicate as component (B), the carbonate is selected from alkali metal carbonates and alkali metal hydrogen carbonates or Two or more are preferred, and alkali metal carbonates are more preferred. More specifically, one or more selected from sodium carbonate, potassium carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate can be mentioned, and sodium carbonate is preferred. When carbonate and amorphous silicate are used in combination, the mass ratio of carbonate to amorphous silicate [carbonate / amorphous silicate] is 2 or more, further 2.5 or more, and further 3 More preferably, it is 3.5 or more, more preferably 4 or more, and 20 or less, further 15 or less, and further preferably 10 or less.

[Component (C)]
(C) component of this invention is a compound chosen from a sulfate and a metal chloride, Preferably it is a sulfate. The component (C) is preferably a water-soluble neutral inorganic salt. Regarding the component (C), “water-soluble” means that 1 g or more is dissolved in 100 g of water at 20 ° C. (C) As for a component, what melt | dissolves 5g or more in 100g of water at 20 degreeC, and also 10g or more is preferable. (C) As a component, the 1 type (s) or 2 or more types chosen from sodium sulfate, potassium sulfate, sodium chloride, and potassium chloride are mentioned, Sodium sulfate and / or sodium chloride from a viewpoint of washing | cleaning performance, foamability, and defoaming property Is preferred. The composition of the present invention preferably contains sodium sulfate as the component (C) from the viewpoint of cleaning performance. When the component (C) contains sulfate and metal chloride, the mass ratio of sulfate to metal chloride (sulfate / metal chloride) is 30 or more, further 40 or more, further 45 or more, and 60 Hereinafter, it is preferably 56 or less and more preferably 52 or less. The composition of the present invention comprises, as component (C), at least one compound selected from sodium sulfate and potassium sulfate (hereinafter referred to as component (C1)), and at least one compound selected from sodium chloride and potassium chloride. (Hereinafter referred to as the component (C2)). In this case, the mass ratio (C1) / (C2) between the component (C1) and the component (C2) is preferably 30 or more, more preferably 40 or more, further 45 or more, and 60 or less, further 56 or less, and further 52 or less.

[Composition of powder detergent composition for clothing, etc.]
The powder detergent composition for clothing of the present invention contains 5% by mass or more and 40% by mass or less of the component (A). The content of the component (A) is preferably 8% by mass or more, more preferably 10% by mass or more, and still more preferably 12% by mass or more in the composition. Moreover, 35 mass% or less is preferable in a composition, (A) component content is more preferable 30 mass% or less, 25 mass% or less is more preferable, and 20 mass% or less is still more preferable.

  From the viewpoint of cleaning performance, the content of the component (A-1) is preferably 2% by mass or more, more preferably 3% by mass or more, and still more preferably 4% by mass or more in the composition. Further, from the viewpoint of cleaning performance and antifoaming property, the content of the component (A-2) is preferably 2% by mass or more, more preferably 3% by mass or more, and still more preferably 4% by mass or more in the composition.

  From the viewpoints of cleaning performance, foamability, and defoaming property, and in particular, from the viewpoint of cleaning performance, the total mass of the component (A-1) and the component (A-2) in the component (A) is 70% by mass or more, 75% by mass or more, preferably 80% by mass or more, more preferably 85% by mass or more, more preferably 90% by mass or more, more preferably 92% by mass or more, still more preferably 95% by mass or more, and 97% by mass or more. Is more preferable, and 99 mass% or more is still more preferable. It may be 100% by mass.

  From the viewpoint of foaming properties, the ratio of the mass of the component (A-1) to the mass of the component (A-2) in the composition [(A-1) component / (A-2) component] is 55/45. The ratio is 85/15 or less, preferably 60/40 or more, and more preferably 65/35 or more. The mass ratio is preferably 80/20 or less, and more preferably 75/25 or less.

  From the viewpoint of foaming properties, defoaming properties, and cleaning performance, the ratio of the mass of the component (A-2-1) to the mass of the component (A-2) in the composition [(A-2-1) component / ( A-2) component] is 0.4 or more and 1 or less. From the viewpoint of defoaming property, 0.40 or more, further 0.42 or more, further 0.45 or more, and further 0.5 or more are preferable. From the viewpoint of foaming properties, the mass ratio is preferably 1 or less, more preferably 0.9 or less, further 0.90 or less, and further preferably 0.85 or less.

  From the viewpoint of foaming properties and defoaming properties, the ratio of the mass of the component (A-2-1) to the mass of the component (A) in the composition [(A-2-1) component / (A) component] is It is 0.05 or more and 0.3 or less. From the viewpoint of defoaming property, 0.05 or more, 0.07 or more, further 0.07 or more, further 0.1 or more, further 0.1 or more, and further 0.15 or more are preferable. Further, from the viewpoint of foaming property, this mass ratio is preferably 0.28 or less, and more preferably 0.25 or less.

  The content of the component (B) in the powder detergent composition for clothing of the present invention is preferably 10% by mass or more, more preferably 15% by mass or more, from the viewpoints of cleaning performance, foaming properties and antifoaming properties, and 45 % By mass or less is preferable, 40% by mass or less is more preferable, and 35% by mass or less is more preferable.

  From the viewpoints of cleaning performance, foamability, and antifoaming property, the ratio of the total mass of the components (A-1) and (A-2) in the composition to the mass of the component (B) [[(A-1 ) Component + (A-2) component] / (B) component] is 25/75 or more, more preferably 26/74 or more, further 28/72 or more, further 29/71 or more, and more preferably 33/67 or more, And it is 67/33 or less, 66/34 or less, further 64/36 or less, further 63/37 or less, further 60/40 or less, further 55/45 or less, further 50/50 or less, further 45/55 or less. preferable.

  It is preferable that the powder detergent composition for clothes of this invention contains (C) component 10 mass% or more and 80 mass% or less. The content is preferably 20% by mass or more, more preferably 30% by mass or more, and preferably 70% by mass or less, more preferably 60% by mass or less, from the viewpoints of cleaning performance, foaming properties, and defoaming properties.

  From the viewpoints of cleaning performance, foamability and defoaming property, the ratio of the total mass of the component (A-1) and the component (A-2) in the composition to the mass of the component (C) [[(A-1 ) Component + (A-2) component] / (C) component] is 11/89 or more and 67/33 or less. This mass ratio is 67/33 or less, particularly 60/40 or less, further 50/50 or less, further 45/55 or less, and further 33/67 from the viewpoint of cleaning performance and foaming performance, particularly from the viewpoint of rinsing properties. The following is preferred. Further, from the same viewpoint, this mass ratio is 11/89 or more, more preferably 13/87 or more, further 14/86 or more, and further preferably 20/80 or more.

  From the viewpoints of cleaning performance, foamability, defoaming property, particularly cleaning performance, foaming performance, the total mass of the components (A-1) and (A-2) in the composition, the components (B) and (C) The ratio of the total mass of the components [[(A-1) component + (A-2) component] / [(B) component + (C) component]] is preferably 1/20 or more and 1/1 or less. is there. This mass ratio is preferably 1/10 or more, more preferably 1/8 or more, and further preferably 1/7 or more, and is preferably 1/2 or less, and more preferably 1/4 or less.

  From the viewpoint of cleaning performance, foaming property, defoaming property, particularly defoaming property (rinsing property), the ratio of the mass of the component (B) and the mass of the component (C) in the composition [(B) component / (C ) Component] is preferably 1/99 or more and 99/1 or less. This mass ratio is 3/97 or more, further 5/95 or more, further 10/90 or more, further 15/85 or more, further 20/80 or more, further 25/75 or more, further 30/70 or more, further 35/65. The above is preferable, and 99/1 or less, further 95/5 or less, further 80/20 or less, further 60/40 or less, 55/45 or less, or 50/50 or less is preferable.

  The powder detergent composition for clothing of the present invention comprises (D-1) one or more inorganic polyvalent metal ion scavengers selected from (D-1) aluminosilicate, crystalline silicate and phosphate as component (D) Or (D-1) component] and (D-2) one or more organic polyvalent metal ion capture builders (hereinafter referred to as (D-2) component) selected from carboxylic acid polymer compounds. Or contained under predetermined conditions. In general, these compounds are known to be blended as environmentally high load polyvalent metal ion scavengers in powder detergent compositions for clothing. Also in the present invention, the component (D) can be preferably contained in combination of a plurality of components (D). In the present invention, the content of the component (D) in the composition is limited. Furthermore, even if it does not contain the component (D), it is possible for a person skilled in the art to recognize the advantageous effects of the present invention remarkably by improving the foaming property and the foam disappearance property while maintaining a good detergency. .

  Aluminosilicates include crystalline or amorphous aluminosilicates, natural zeolites such as chabazite, mondenite, erionite, faujasite, clinoptilolite, A-type zeolite, X-type zeolite, Y-type zeolite, L Synthetic zeolites such as type zeolite, omega type zeolite, P type zeolite, and MAP type zeolite.

As the crystalline silicate, an alkali metal silicate SiO ₂ / M ₂ O (wherein M represents an alkali metal atom) has a molar ratio of 0.5 or more and 2.6 or less. Can be mentioned.

  Examples of the phosphate include orthophosphate, metaphosphate, trimetaphosphate, pyrophosphate, and tripolyphosphate. Examples of the salt include alkali metal salts such as sodium salt and potassium salt.

  As the carboxylic acid-based polymer compound, a weight average molecular weight of 1,000 or more including a repeating unit derived from monoethylenically unsaturated mono and / or dicarboxylic acid, and further a repeating unit derived from acrylic acid and / or maleic acid, Examples of the polymer compound include 150,000 or less. Such a polymer compound may be a salt such as an alkali metal salt such as a sodium salt or a potassium salt. Specifically, polyacrylic acid and its salt, polymaleic acid and its salt, or acrylic acid-maleic acid copolymer and its salt are mentioned. Of these, polyacrylic acid and salts thereof are preferable.

  In the present invention, the content and ratio of the component (A-1), the component (A-2), the component (B), and the component (C) are within a specific range, so that a relatively large amount has been conventionally incorporated. (D) The compounding quantity of an environment high load polyvalent metal ion capture | acquisition builder like a component can be reduced.

In the present invention, from the viewpoint of environmental load reduction, the content of component (D-1) is, in the composition, 0 wt% or more and 15 mass% or less, preferably 12 wt% or less, and 9 wt% or less More preferably, 7 mass% or less is further more preferable, and 5 mass% or less is still more preferable. Further, it may be 3% by mass or less, further 2% by mass or less, further 1% by mass or less, and further 0% by mass. Among them, the content of the phosphate is preferably 7% by mass or less, more preferably 5% by mass or less, more preferably 3% by mass or less, more preferably 2% by mass or less, and preferably 1% by mass or less in the composition. More preferred is 0% by mass.

  In the present invention, from the viewpoint of reducing the environmental load, the content of the component (D-2) in the composition is 0% by mass or more and 4% by mass or less, preferably 3% by mass or less, and preferably 2% by mass. The following is more preferable, 1.5% by mass or less is more preferable, 1% by mass or less is more preferable, and 0% by mass is still more preferable.

In the present invention, the total content of the component (D-1) and the component (D-2) is 0% by mass or more and 15% by mass or less, preferably 12% by mass or less, and 9% by mass in the composition. % Or less, more preferably 5% by weight or less, still more preferably 4% by weight or less, still more preferably 3% by weight or less, still more preferably 2% by weight or less, and even more preferably 1% by weight or less, 0% by mass is even more preferable.

  The composition of the present invention includes a bleaching agent (perborate, bleach activator, etc.) known in the detergent field, a recontamination inhibitor, a softening agent (bentonite, etc.), a reducing agent (sulfite, etc.), An optical brightener, an antifoaming agent (silicone, etc.), a fragrance, an enzyme (cellulase, protease, peptinase, lipase, dextranase, amylase, etc.), a colorant and the like can be contained.

  Here, the content of silicone is preferably 0.1% by mass or less, more preferably 0.05% by mass or less, and 0% by mass, ie, not contained, in the composition from the viewpoint of foaming properties during washing. Is most preferred.

  In the composition of the present invention, in terms of solubility and productivity, the water content by the heat loss method described in JIS K 3362: 2008 is preferably 0.5% by mass or more, more preferably 1% by mass or more. And 10 mass% or less, Furthermore 8 mass% or less, Furthermore 6 mass% or less are preferable.

  In terms of solubility, the composition of the present invention preferably has an apparent density of 1,600 g / L or less, more preferably 1,300 g / L or less, as measured by a method defined by JIS K 3362: 2008, More preferably, it is 100 g / L or less. Further, in terms of convenience and reduction of wastes (such as boxes used for product storage and packaging), the apparent density is preferably 300 g / L or more, more preferably 350 g / L or more, and still more preferably 400 g / L or more.

  In terms of solubility, the composition of the present invention preferably has an average particle size of 150 μm or more and 180 μm or more obtained from a mass fraction according to the size of the mesh after vibrating for 5 minutes using a standard sieve of JIS Z 8801. And, it is preferably 1,000 μm or less, more preferably 800 μm or less, and further preferably 600 μm or less.

  In the composition of the present invention, the pH of a 0.1% by mass aqueous solution measured at 20 ° C. described in JIS K 3362: 2008 is preferably 8 or more, more preferably 9 or more, in terms of cleaning performance. The above is more preferable, 10 or more is more preferable, and 12 or less, further 11.5 or less, and further 11 or less are preferable.

  The composition of the present invention is preferably surface-modified with a surface coating agent in terms of fluidity and non-caking property.

  The composition of this invention can be manufactured by a well-known method. For example, spray drying method, dry neutralization method, dry granulation method, dry blend method, fluidized bed drying method, thin film drying method, extrusion granulation method, rolling granulation method, stirring granulation method, compaction granulation method, The surfactant can be produced by applying a method for supporting a surfactant or a method selected and combined from these.

  The present invention relates to a hand-washing laundry method for hand-washing an object to be washed that has been brought into contact with washing water containing the powder detergent composition for clothing of the present invention. As a hand-washing washing method using the powder detergent composition for clothes of the present invention, a wash prepared from the powder detergent composition for clothes of the present invention is applied to clothes (which may include fabrics and other textile products) to be cleaned. There is a method in which water is brought into contact with and immersed in the hand. When the contact time and / or immersion time is long, the cleaning effect is high, and when the contact time and / or immersion is 5 to 15 minutes, a better effect is obtained. In particular, when washing water is directly applied to a soiled portion and left for 5 to 15 minutes, a higher effect can be obtained. Washing water containing the composition of the present invention and water is used. Washing water is prepared by mixing the composition of the present invention and water at a mass ratio of the composition of the present invention / water = 1 / 3,000 or more, 1/2000 or more, 10 or less, and further 1 or less. What was obtained is preferable. The mass of the washing water with respect to the mass of the clothing (object to be cleaned) is preferably 2 times or more and 100 times or less. The mass of the washing water relative to the mass of the clothing (object to be cleaned) is preferably 2 times or more, more preferably 3 times or more, and further preferably 5 times or more, and is preferably 100 times or less, more preferably 50 times or less, and further preferably 25 times or less. It is visually preferable that the clothes brought into contact with the washing water according to the present invention are thoroughly rubbed by hand because not only a good detergency is obtained but also rich foaming. After hand washing such as rubbing, take out clothes (objects to be washed) from the wash water, squeeze out and drain the water using a dehydrator, and then immerse it again in fresh water (hereinafter referred to as rinse water). The rinsing water may be either water stored in a basin or running water. The mass of the rinsing water with respect to the object to be cleaned is preferably 2 times or more, more preferably 5 times or more, and more preferably 10 times or more based on the total amount of rinsing water used for rinsing, and 1,000 times or less, further 500 times or less, Further, it is preferably 100 times or less. Since the surfactant remaining in the clothing at the stage of immersing the rinse water is redissolved in the rinse water, foaming is observed. When this operation is repeated several times, the foaming disappears and the rinsing is completed. In general washing by hand washing, for example, when a normal detergent is used, it is generally required 5 times or more, but in the present invention, rinsing can be completed in 3 times or less, and rinsing is completed with very little rinsing water. Can be made.

  In the present invention, it is preferable to use the composition containing the composition of the present invention and water as the washing water, and rinse the hand-washed article with water. That is, the hand-washing washing method of the present invention includes a step of washing the article to be washed in contact with washing water containing the powder detergent composition for clothing of the present invention and water, and a step of rinsing the article to be washed with water. It is preferable to have. In the present invention, the hardness of water used for the preparation of cleaning water and / or the hardness of water used for rinsing is preferably 1 ° DH or more and 50 ° DH or less from the viewpoint of cleaning power and rinsing properties. The hardness of water used for the preparation of washing water and / or the hardness of water used for rinsing is 1 ° DH or more, further 2 ° DH or more, further 3 ° DH or more, further 5 ° DH or more, and further 10 ° DH or more. preferable. And it may be 50 ° DH or less, and further 30 ° DH or less.

The present invention
(A) Surfactant [hereinafter referred to as component (A)] 5 mass% or more, 40 mass% or less,
(B) a compound selected from carbonate and amorphous silicate [hereinafter referred to as component (B)],
(C) a compound selected from sulfate and metal chloride (hereinafter referred to as component (C)), and
(D) (D-1) one or more inorganic polyvalent metal ion capture builders selected from aluminosilicates, crystalline silicates and phosphates (hereinafter referred to as component (D-1)) 0% by mass or more, 9% by mass or less, (D-2) one or more organic polyvalent metal ion capture builders selected from carboxylic acid polymer compounds (hereinafter referred to as (D-2) component) 0% by mass to 4% by mass Contains,
As the component (A), (A-1) a linear alkylbenzene sulfonate [hereinafter referred to as component (A-1)] and (A-2) an alkyl sulfate (hereinafter referred to as component (A-2)). Contains,
The total mass of the component (A-1) and the component (A-2) in the component (A) is 85% by mass or more,
The ratio of the mass of the component (A-1) to the mass of the component (A-2) [(A-1) component / (A-2) component] is 55/45 or more and 85/15 or less,
As the component (A-2), (A-2-1) an alkyl sulfate having 16 or more carbon atoms in the alkyl group (hereinafter referred to as the component (A-2-1)) is contained.
The ratio of the mass of the component (A-2-1) to the mass of the component (A-2) [(A-2-1) component / (A-2) component] is 0.4 or more and 1 or less,
The ratio [(A-2-1) / (A)] of the mass of the component (A-2-1) to the mass of the component (A) is from 0.05 to 0.3,
The ratio of the total mass of the component (A-1) and the component (A-2) to the mass of the component (B) [[(A-1) component + (A-2) component] / (B) component] is 25/75 or more and 67/33 or less,
The ratio of the total mass of component (A-1) and component (A-2) to the mass of component (C) [[(A-1) component + (A-2) component] / (C) component] is 11/89 or more and 67/33 or less,
The total content of the component (D-1) and the component (D-2) is 0% by mass or more and 9% by mass or less in the composition.
Contains a powder detergent composition for clothing. Further, the present invention includes a hand-washing washing method for hand-washing an object to be washed which has been brought into contact with washing water containing the powder detergent composition for clothing.

Embodiments of the present invention are exemplified below.
<1>
(A) Surfactant [hereinafter referred to as component (A)] 5 mass% or more, 40 mass% or less,
(B) a compound selected from carbonate and amorphous silicate [hereinafter referred to as component (B)],
(C) a compound selected from sulfate and metal chloride (hereinafter referred to as component (C)), and
(D) (D-1) one or more inorganic polyvalent metal ion capture builders selected from aluminosilicates, crystalline silicates and phosphates (hereinafter referred to as component (D-1)) 0% by mass or more, 15% by mass or less, (D-2) one or more organic polyvalent metal ion capture builders selected from carboxylic acid polymer compounds (hereinafter referred to as component (D-2)) 0% by mass to 4% by mass Contains,
As the component (A), (A-1) a linear alkylbenzene sulfonate [hereinafter referred to as component (A-1)] and (A-2) an alkyl sulfate (hereinafter referred to as component (A-2)). Contains,
The total mass of the component (A-1) and the component (A-2) in the component (A) is 70% by mass or more, preferably 85% by mass or more.
The ratio of the mass of the component (A-1) to the mass of the component (A-2) [(A-1) component / (A-2) component] is 55/45 or more and 85/15 or less,
As the component (A-2), (A-2-1) an alkyl sulfate having 16 or more carbon atoms in the alkyl group (hereinafter referred to as the component (A-2-1)) is contained.
The ratio of the mass of the component (A-2-1) to the mass of the component (A-2) [(A-2-1) component / (A-2) component] is 0.4 or more and 1 or less,
The ratio [(A-2-1) / (A)] of the mass of the component (A-2-1) to the mass of the component (A) is from 0.05 to 0.3,
The ratio of the total mass of the component (A-1) and the component (A-2) to the mass of the component (B) [[(A-1) component + (A-2) component] / (B) component] is 25/75 or more and 67/33 or less,
The ratio of the total mass of component (A-1) and component (A-2) to the mass of component (C) [[(A-1) component + (A-2) component] / (C) component] is 11/89 or more and 67/33 or less,
The total content of the component (D-1) and the component (D-2) is 0% by mass or more and 15% by mass or less in the composition.
Powder detergent composition for clothing.

<2>
(A-1) The powder detergent composition for clothing according to <1>, wherein the component is a linear alkylbenzene sulfonate having an alkyl group having 10 to 15 carbon atoms.

<3>
(A-2) The powder detergent composition for clothing according to the above <1> or <2>, wherein the component is an alkyl sulfate having 10 or more, 12 or more, and 24 or less carbon atoms of an alkyl group.

<4>
As the component (A-2), an alkyl sulfate having an alkyl group with a carbon number of preferably 16 or more and 24 or less, more preferably 16 or more and 20 or less, more preferably 16 or more and 18 or less, and more preferably 16 [ The powder detergent composition for clothing according to any one of <1> to <3>, further comprising (hereinafter also referred to as component (A-2-1)).

<5>
The component (A) other than the component (A-1) and the component (A-2) is a sulfate ester salt of a higher alcohol ethoxylate, a paraffin sulfonate, an α-sulfo fatty acid alkyl ester salt, an α-olefin sulfonate. And anionic surfactants selected from fatty acid salts, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene alkyl phenyl ethers, sucrose fatty acid esters, sorbitan fatty acid esters, fatty acid alkanolamides And nonionic surfactants selected from alkyl glycosides, di-long chain alkylamines having 8 to 18 carbon atoms and polyoxyethylene adducts thereof, and alkyl groups having 8 to 18 carbon atoms. A long mono chain A cationic surfactant selected from an alkyl quaternary ammonium salt and a di-long chain alkyl quaternary ammonium salt having an alkyl group having 8 to 18 carbon atoms, carbobetaine, sulfobetaine and hydroxysulfobetaine The powder detergent composition for clothing according to any one of <1> to <4>, which is one or more surfactants selected from the group consisting of amphoteric surfactants.

<6>
The polyoxyalkylene alkyl ether is a polyoxyalkylene having an alkyl group having 10 to 15 carbon atoms, an alkylene oxide, preferably an average added mole number of ethylene oxide of 2 or more, further 4 or more, and 10 or less, and further 8 or less. The powder detergent composition for clothing according to <5>, which is an alkyl ether.

<7>
The content of the nonionic surfactant is preferably 2% by mass or less, more preferably 1.5% by mass or less, and preferably 0.1% by mass or more, more preferably 0.3% by mass in the composition. As described above, the powder detergent composition for clothing according to any one of <1> to <6>, more preferably 0.5% by mass or more, and more preferably 1% by mass or more.

<8>
In the composition, the content of the cationic surfactant is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, more preferably 0.1% by mass or less, more preferably 0% by mass. The powder detergent composition for clothing according to any one of <1> to <7>.

<9>
<1> to <8, wherein the component (B) is one or more selected from alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal percarbonates, and amorphous alkali metal silicates. > The powder detergent composition for clothing according to any one of

<10>
As the component (B), carbonate and amorphous silicate are contained, and the mass ratio of carbonate to amorphous silicate [carbonate / amorphous silicate] is 2 or more, preferably 2.5 or more, more preferably 3 or more, more preferably 3.5 or more, more preferably 4 or more, and 20 or less, preferably 15 or less, more preferably 10 or less, <1> to <<9> The powder detergent composition for clothing according to any one of the above.

<11>
(C) The powder detergent composition for clothes according to any one of <1> to <10>, wherein the component is one or more selected from sodium sulfate, potassium sulfate, sodium chloride, and potassium chloride.

<12>
The powder detergent composition for clothing according to any one of <1> to <11>, wherein the component (C) contains a sulfate, preferably sodium sulfate, and a metal chloride, preferably sodium chloride.

<13>
The content of the component (A) in the composition is 8% by mass or more, preferably 10% by mass or more, more preferably 12% by mass or more, and 35% by mass or less, preferably 30% by mass or less. The powder detergent composition for clothing according to any one of <1> to <12>, preferably 25% by mass or less.

<14>
The content of the component (A-1) is 2% by mass or more, preferably 3% by mass or more, more preferably 4% by mass or more in the composition, according to any one of <1> to <13>. Powder detergent composition for clothing.

<15>
(A-2) Content of a component is 2 mass% or more in a composition, Preferably it is 3 mass% or more, More preferably, it is 4 mass% or more, Any one of said <1>-<14>. Powder detergent composition for clothing.

<16>
The total mass of the component (A-1) and the component (A-2) in the component (A) is 75% by mass or more, preferably 80% by mass or more, more preferably 85% by mass or more, more preferably 90% by mass. Or more, more preferably 92% by mass or more, more preferably 95% by mass or more, more preferably 97% by mass or more, more preferably 99% by mass or more, more preferably 100% by mass, and more preferably 100% by mass. The powder detergent composition for clothing according to any one of <1> to <15>, wherein the composition is mass%.

<17>
The ratio of the mass of the component (A-1) to the mass of the component (A-2) [(A-1) component / (A-2) component] is 60/40 or more, preferably 65/35 or more. And the powder detergent composition for clothes in any one of said <1>-<16> which is 80/20 or less, Preferably it is 75/25 or less.

<18>
The ratio of the mass of the component (A-2-1) to the mass of the component (A-2) [(A-2-1) component / (A-2) component] is 0.42 or more, preferably 0.8. The powder detergent composition for clothing according to any one of <1> to <17>, which is 45 or more, more preferably 0.5 or more, and 0.9 or less, preferably 0.85 or less.

<19>
The ratio of the mass of the component (A-2-1) to the mass of the component (A) [(A-2-1) component / (A) component] is 0.07 or more, preferably 0.1 or more. The powder detergent composition for clothing according to any one of <1> to <18>, preferably 0.15 or more and 0.28 or less, preferably 0.25 or less.

<20>
The content of the component (B) is 10% by mass or more, preferably 15% by mass or more, and 45% by mass or less, preferably 40% by mass or less, more preferably 35% by mass or less, <1 The powder detergent composition for clothing according to any one of> to <19>.

<21>
The ratio of the total mass of the component (A-1) and the component (A-2) to the mass of the component (B) [[(A-1) component + (A-2) component] / (B) component] is 26/74 or more, preferably 28/72 or more, more preferably 29/71 or more, more preferably 33/67 or more, and 66/34 or less, preferably 64/36 or less, more preferably 63 / 37 or less, more preferably 60/40 or less, more preferably 55/45 or less, more preferably 50/50 or less, more preferably 45/55 or less, according to any one of <1> to <20> above Powder detergent composition for clothing.

<22>
The content of the component (C) in the composition is 10% by mass or more, preferably 20% by mass or more, more preferably 30% by mass or more, and 80% by mass or less, preferably 70% by mass or less. The powder detergent composition for clothing according to any one of <1> to <21>, preferably 60% by mass or less.

<23>
The ratio of the total mass of component (A-1) and component (A-2) to the mass of component (C) [[(A-1) component + (A-2) component] / (C) component] is , 60/40 or less, preferably 50/50 or less, more preferably 45/55 or less, more preferably 33/67 or less, and 13/87 or more, preferably 14/86 or more, more preferably 20 / The powder detergent composition for clothing according to any one of <1> to <22>, which is 80 or more.

<24>
Ratio of total mass of component (A-1) and component (A-2) to total mass of component (B) and component (C) [[(A-1) component + (A-2) component] / [(B) component + (C) component]] is 1/20 or more, preferably 1/10 or more, more preferably 1/8 or more, more preferably 1/7 or more, and 1/1 or less. The powder detergent composition for clothing according to any one of <1> to <23>, preferably ½ or less, more preferably ¼ or less.

<25>
The ratio of the mass of the component (B) to the mass of the component (C) [(B) component / (C) component] is 1/99 or more, preferably 3/97 or more, more preferably 5/95 or more, more Preferably 10/90 or more, more preferably 15/85 or more, more preferably 20/80 or more, more preferably 25/75 or more, more preferably 30/70 or more, more preferably 35/65 or more, and 99/1 or less, preferably 95/5 or less, more preferably 80/20 or less, more preferably 60/40 or less, more preferably 55/45 or less, and more preferably 50/50 or less. The powder detergent composition for clothing according to any one of> to <24>.

<26>
The content of the component (D-1) in the composition is 12% by mass or less, preferably 9 % by mass or less, more preferably 7% by mass or less, more preferably 5% by mass or less, more preferably 3% by mass or less. More preferably, it is 2% by mass or less, more preferably 1% by mass or less, more preferably 0% by mass, more preferably 0% by mass, any one of the above items <1> to <25> A powder detergent composition for clothing.

<27>
The content of the component (D-2) in the composition is 3% by mass or less, preferably 2% by mass or less, more preferably 1.5% by mass or less, more preferably 1% by mass or less, more preferably 0% by mass. The powder detergent composition for clothing according to any one of <1> to <26>, wherein the composition is%.

<28>
The total content of the component (D-1) and the component (D-2) is 12% by mass or less, preferably 9 % by mass or less, more preferably 5% by mass or less, more preferably 4% by mass or less in the composition. The powder for clothing according to any one of <1> to <27>, more preferably 3% by mass or less, more preferably 2% by mass or less, more preferably 1% by mass or less, and more preferably 0% by mass. Detergent composition.

<29>
Content of silicone is 0.1 mass% or less in a composition, Preferably it is 0.05 mass% or less, More preferably, it is 0 mass%, For clothes in any one of said <1>-<28> Powder detergent composition.

<30>
The water content in the composition according to JIS K 3362: 2008 is 0.5% by mass or more, preferably 1% by mass or more, and 10% by mass or less, preferably 8% by mass or less, more preferably The powder detergent composition for clothing according to any one of <1> to <29>, wherein is 6% by mass or less.

<31>
The apparent density measured by the method specified by JIS K 3362: 2008 is 1,600 g / L or less, preferably 1,300 g / L or less, more preferably 1,100 g / L or less, and 300 g / L. The powder detergent composition for clothing according to any one of <1> to <30> above, preferably 350 g / L or more, more preferably 400 g / L or more.

<32>
After vibrating for 5 minutes using a standard sieve of JIS Z 8801, the average particle size determined from the mass fraction due to the size of the sieve mesh is 150 μm or more, preferably 180 μm or more, and 1,000 μm or less, preferably The powder detergent composition for clothing according to any one of <1> to <31>, which is 800 μm or less, more preferably 600 μm or less.

<33>
The pH of a 0.1% by mass aqueous solution measured at 20 ° C. described in JIS K 3362: 2008 is 8 or more, preferably 9 or more, more preferably 9.5 or more, more preferably 10 or more, and 12 or less. The powder detergent composition for clothing according to any one of <1> to <32>, preferably 11.5 or less, more preferably 11 or less.

<34>
The content of the cationic surfactant in the composition is 0.5% by mass or less, preferably 0.3% by mass or less, more preferably 0.1% by mass or less, more preferably 0% by mass, or , A di-long-chain alkylamine having an alkyl group having 8 to 18 carbon atoms and a polyoxyethylene adduct thereof, a mono-long-chain alkyl quaternary ammonium salt having an alkyl group having 8 to 18 carbon atoms, And the content of a cationic surfactant selected from di-long-chain alkyl quaternary ammonium salts having an alkyl group with 8 or more and 18 or less carbon atoms, particularly those having an alkyl group with 8 or more and 18 or less carbon atoms. The content of a cationic surfactant selected from a long-chain alkyl quaternary ammonium salt and a di-long-chain alkyl quaternary ammonium salt whose alkyl group has 8 to 18 carbon atoms, and more The content of the mono long-chain alkyl quaternary ammonium salt having 8 to 18 carbon atoms in the alkyl group is 0.5% by mass or less, preferably 0.3% by mass or less, more preferably in the composition. The powder detergent composition for clothing according to any one of <1> to <33>, which is 0.1% by mass or less, more preferably 0% by mass.

<35>
The powder detergent composition for clothing according to any one of <1> to <34>, which is for hand-washing.

<36>
The hand-washing washing method which wash-washes the to-be-washed object which contacted the washing water containing the powder detergent composition for clothing in any one of said <1>-<35>.

<37>
Water for use in preparation of washing water, comprising the steps of washing the article to be washed in contact with the washing water containing the powder detergent composition for clothes of the present invention and water, and rinsing the article to be washed with water. And / or the hardness of water used for rinsing is 1 ° DH or higher, preferably 2 ° DH or higher, more preferably 3 ° DH or higher, more preferably 5 ° DH or higher, more preferably 10 ° DH or higher. And the hand-washing washing method according to the above <36>, wherein it is 50 ° DH or less, preferably 30 ° DH or less.

  Using the following components in the formulation shown in Table 1, a powder detergent composition for clothing was prepared by the following method, and the following evaluation was performed. The results are shown in Table 1.

<Blending ingredients>
LAS: sodium dodecylbenzenesulfonate (manufactured by Kanto Chemical Co., Ltd., linear alkyl (carbon number 12) sodium benzenesulfonate)
C16AS: linear alkyl sodium sulfate having an alkyl group with 16 carbon atoms (manufactured by Wako Pure Chemical Industries, Ltd.)
C12AS: linear alkyl sodium sulfate having 12 alkyl groups (manufactured by Wako Pure Chemical Industries, Ltd.)
C14AS: linear alkyl sodium sulfate having 14 alkyl groups (manufactured by Wako Pure Chemical Industries, Ltd.)
AES-Na (EO = 2): polyoxyethylene (average number of moles added 2) sodium lauryl ether sulfate ester, Emar 270J (manufactured by Kao Corporation)
・ Sodium carbonate: Dense ash (manufactured by Central Glass Co., Ltd.)
・ Sodium bicarbonate: manufactured by Wako Pure Chemical Industries, Ltd. Sodium hydrogencarbonate ・ Amorphous sodium silicate: 43 mass% sodium silicate aqueous solution (manufactured by TOKUYAMA SIAM SILICA CO., LTD) Used to be.
・ Sodium sulfate: anhydrous neutral sodium sulfate (manufactured by Shikoku Chemicals Co., Ltd.)
Sodium chloride: manufactured by Wako Pure Chemical Industries, Ltd. Sodium chlorideZeolite: Type A zeolite: “Zeobuilder” (Zeobuilder, median diameter: 3.0 μm)

<Method for producing powder detergent composition>
Examples 1-10, Comparative Examples 1-5
The detergent composition was manufactured in units of 5 kg using a Redige mixer (manufactured by Matsusaka Giken Co., Ltd., capacity 20 L). In accordance with Table 1, sodium carbonate, sodium sulfate, sodium chloride, sodium hydrogen carbonate, zeolite, C16AS, C12AS, C14AS, LAS, AES-Na (EO = 2) were mixed by the above-mentioned Readyge mixer, and water totaled 4 parts by mass. Then, water and amorphous sodium silicate were mixed and added in 2 minutes, and the granulated particles were screened with a 1180 μm screen by operating the mixer for 1 minute, and the sieved product was Fitzmill grinder (DKA- 6: manufactured by Hosokawa Micron). The particles of Examples 1 to 10 and Comparative Examples 1 to 5 thus obtained had an apparent density measured by the method of 700 to 1100 g / L, an average particle size measured by the method of 180 to 600 μm, The pH (20 ° C.) of the 0.1 mass% aqueous solution measured by the method was 10 to 11.

<Method for preparing underwear for evaluation>
Commercial underwear 2.5 kg [Gunze (YG1614 round neck L size 100% cotton)] washes with a washing machine (Panasonic NA-F70PB1 '2008), water temperature 20 ° C, calcium carbonate equivalent 89.5mg / L [German hardness 5 Washing was repeated 5 times using hard water of [DH] to remove the treatment agent (washing conditions: 54 L of water, washing for 12 minutes, rinsing twice (rinse rinse), dehydration for 5 minutes). At that time, 1: 1: 3 (mass ratio) of a nonionic surfactant (an average of 6 moles of oxyethylene added to a primary alcohol having 12 carbon atoms), amorphous sodium silicate, and sodium carbonate Was used at 0.5 g / L. Thereafter, running water was rinsed with a two-tank washing machine (manufactured by HITACHI, PS-H35L'2008) using hard water having a water temperature of 20 ° C. and 89.5 mg / L in terms of calcium carbonate. When rinsing was stopped, rinsing was performed until the foam disappeared completely, and the treatment agent and the cleaning component were removed and dried by natural drying, and used as an underwear for evaluation.

<Evaluation>
(1) Evaluation of foaming property In a model circular washbasin (a cylindrical acrylic container having a bottom diameter (inner diameter) of 25 cm and a height of 15 cm), a water temperature of 20 ° C., converted to calcium carbonate, 179 mg / L [German hardness: 10 ° DH] Hard water [1.58 g of calcium chloride CaCl ₂ · 2H ₂ O and 1.45 g of magnesium sulfate MgSO ₄ · 6H ₂ O to 10 L by adding ion-exchanged water, Ca / Mg = 6/4 (mol Ratio)] 3L injection. Next, the powder detergent composition is added and dissolved so that the total amount of the component (A) is 1500 ppm. Then, the preliminarily warmed (60 ° C.) prepared oil (composition is shown below) is added dropwise to the neck using a dropper (φ: 2 mm) so that the amount becomes 3 g (about 0.33 g per sheet). The underwear is poured into the washing liquid and left for 15 minutes in a completely immersed state. After leaving, the neck is attached to one undergarment and the neck is washed 50 times (converted to 1 time in one reciprocation (about 1 second) while rubbing the necks together). Thereafter, the underwear is taken out and squeezed 10 cm above the basin so that the moisture content of the underwear is about 100 to 140% of the underwear. Measure the bubble height immediately after squeezing 3 sheets. The measurement was performed by the following method.
In each area where the model circular washbasin is divided into four parts (divided into four sectors), measure the foam height from the water surface, using a ruler, one place for each area, a total of four places. Calculate the average height. The same evaluation was performed by three people, and the average value of the three people was adopted.

  As a result of conducting a questionnaire on foaming to Chinese women aged 25 to 39 (N = 24), 35% of women answered that if the foam height is 0.5 cm or more, 80% if it is 1.0 cm or more Responded that 90% of women were satisfied at 1.5 cm or more. From this result, the bubble height during washing is preferably 1.0 cm or more, more preferably 1.3 cm or more, and more preferably 1.6 cm or more.

* Preparation Oil lauric acid 1 wt%, myristic acid 7.1 wt%, pentadecanoic acid 5.3 wt%, Pas Rumi Chin acid 14.2 wt%, heptadecanoic acid 1 wt%, 3.6 wt% of stearic acid, oleic 17.8% by mass of acid, 30% by mass of triolein, 5% by mass of n-hexadecyl palmitate, and 15% by mass of squalene were heated to about 60 ° C. and uniformly dissolved and mixed to obtain a prepared oil.

(2) Rinsability evaluation (2-1) Foaming property Model circular washbasin (cylindrical acrylic container having a bottom diameter (inner diameter) of 25 cm, height of 15 cm), rinse water, water temperature of 20 ° C., calcium carbonate 5 L of hard water (prepared in the same manner as that used in the foaming evaluation) 5 L of 179 mg / L in conversion (10 ° DH in German hardness) is injected, and three pieces of underwear squeezed in the foaming evaluation are introduced. After rinsing the underwear in water, lift the loose underwear one by one by holding the Eli part up from the bath (lift from the bath to the height of about 5 cm above the basin until the entire clothing comes off), then Return to the bath again. After rinsing by such up-and-down movement 10 times for each undergarment, the water content of the undergarment is squeezed 10 cm above the basin so that the moisture content of the undergarment is about 100 to 140% of the undergarment. The condition of the rinse water immediately after rinsing and dehydration was observed, and points were given according to the following criteria to evaluate the rinsing properties and transparency. The same evaluation was performed by three people, and the average value of the three people was adopted.

-Rinse evaluation point 6: Bubbles with a bubble height of 1 cm or more remain on the entire liquid surface.
5: Bubbles remain on the entire liquid surface (less than 1 cm).
4: Bubbles (less than 1 cm) remain at about 1/2 of the liquid level.
3: Bubbles (less than 1 cm) remain at about 1/4 of the liquid level.
2: Fine bubbles remain on the liquid surface.
1: No bubbles remain on the liquid surface.

-Evaluation point of transparency 4: The rinse water is so cloudy that the bottom of the basin cannot be confirmed.
3: Although rinse water is cloudy, the bottom face of a washbasin can be confirmed.
2: Rinse water is hardly cloudy and is transparent so that the bottom surface of the basin can be confirmed.
1: The rinse water is so transparent that the bottom surface of the basin can be clearly confirmed.

  If there is not enough foam during the rinsing process, or if the rinse water is so cloudy that the bottom of the basin cannot be seen, the number of rinses will be repeated many times until the foam breaks or the rinse water is clear. Will increase. As a result, a large amount of water is consumed. From such a viewpoint, it is preferable that there are few bubbles at the time of rinsing or the rinsing water is transparent. In the above points, the rinsing properties and transparency are both preferably 3 points or less, and more preferably 2 points or less.

(3) Detergency evaluation <Production of artificially contaminated cloth>
Artificial soil used is 6cm x 6cm cotton / polyester blended broad-dyed fabric (cotton / polyester ratio = 65/35, purchased from Tanigami Shoten). Gravure coating.

* Artificial dirt The composition containing the following A, B, C, D, E was used as artificial dirt. Each mass% is a ratio in the artificial dirt of the final composition, and the amount of B was adjusted so that the total was 100 mass%. A:% by weight of the preparation oil (in artificial Kitanaaka used in the foaming property evaluation, 0.44 wt% lauric acid, 3.15 mass% of myristic acid, pentadecanoic acid 2.35% by weight, Pas Rumi Chin acid 6 .31% by mass, heptadecanoic acid 0.44% by mass, stearic acid 1.6% by mass, oleic acid 7.91% by mass, triolein 13.33% by mass, n-hexadecyl palmitate 2.22% by mass, squalene 6 .66 mass%)
B: Hard water obtained by weighing 105 mg of calcium chloride (dihydrate) and dissolving in distilled water to obtain 1,000 ml C: 1.98% by mass of egg white lecithin liquid crystal (11.37 g of arginine hydrochloride, 80 ml of distilled water, histidine 4. Dissolve 4.20 g and 2.44 g of serine, adjust the pH to 5.0 with concentrated hydrochloric acid, and then thoroughly mix this solution with egg white lecithin using a mixer. D: Kanuma Akado 11% by mass
E: Carbon black 0.025 mass%

<Cleaning conditions>
Dissolve the powder detergent composition in 1 L of 179 mg / L of hard water (prepared in the same manner as used in the evaluation of foaming properties) so that the total component (A) is 150 ppm. Four sheets of the above artificially contaminated cloth were put and washed with a targotometer under the following conditions.
Washing time 10 minutes Water temperature 20 ° C
Detergency was measured with a colorimetric colorimeter (Nippon Denshoku Co., Ltd., Z-300A) for the reflectance at 550 nm before and after washing, and the washing rate (%) was determined by the following formula. (The values in the table are average values of the cleaning rates of 4 sheets).
Washing rate (%) = 100 × [(reflectance after washing−reflectivity before washing) / (reflectance of base fabric−reflectivity before washing)]

Claims (6)

(A) Surfactant [hereinafter referred to as component (A)] 5 mass% or more, 40 mass% or less,
(B) a compound selected from carbonate and amorphous silicate [hereinafter referred to as component (B)],
(C) a compound selected from sulfate and metal chloride (hereinafter referred to as component (C)), and
(D) (D-1) one or more inorganic polyvalent metal ion capture builders selected from aluminosilicates, crystalline silicates and phosphates (hereinafter referred to as component (D-1)) 0% by mass or more, 15% by mass or less, (D-2) one or more organic polyvalent metal ion capture builders selected from carboxylic acid polymer compounds (hereinafter referred to as component (D-2)) 0% by mass to 4% by mass Contains,
As the component (A), (A-1) a linear alkylbenzene sulfonate [hereinafter referred to as component (A-1)] and (A-2) an alkyl sulfate (hereinafter referred to as component (A-2)). Contains,
The total mass of the component (A-1) and the component (A-2) in the component (A) is 70% by mass or more,
The ratio of the mass of the component (A-1) to the mass of the component (A-2) [(A-1) component / (A-2) component] is 55/45 or more and 85/15 or less,
As the component (A-2), (A-2-1) an alkyl sulfate having 16 or more carbon atoms in the alkyl group (hereinafter referred to as the component (A-2-1)) is contained.
The ratio of the mass of the component (A-2-1) to the mass of the component (A-2) [(A-2-1) component / (A-2) component] is 0.4 or more and 1 or less,
The ratio [(A-2-1) / (A)] of the mass of the component (A-2-1) to the mass of the component (A) is from 0.05 to 0.3,
The ratio of the total mass of the component (A-1) and the component (A-2) to the mass of the component (B) [[(A-1) component + (A-2) component] / (B) component] is 25/75 or more and 67/33 or less,
The ratio of the total mass of component (A-1) and component (A-2) to the mass of component (C) [[(A-1) component + (A-2) component] / (C) component] is 11/89 or more and 67/33 or less,
The total content of the component (D-1) and the component (D-2) is 0% by mass or more and 15% by mass or less in the composition.
Powder detergent composition for clothing.   The powder detergent composition for clothing according to claim 1, wherein the ratio of the mass of the component (B) to the mass of the component (C) [component (B) / component (C)] is 1/99 or more and 99/1 or less. object. The powder detergent composition for clothing according to claim 1 or 2, wherein the pH of the 0.1 mass% aqueous solution measured at 20 ° C described in JIS K 3362: 2008 is 8 or more and 12 or less .   The hand-washing washing method which carries out the hand washing of the to-be-washed | cleaned material which contacted the washing water containing the powder detergent composition for clothing of any one of Claims 1-3.   The hardness of water used for the preparation of washing water, comprising the steps of washing the article to be washed in contact with washing water containing the powder detergent composition for clothing and water, and rinsing the article to be washed with water with water The hand-washing washing method according to claim 4, wherein the hardness of water used for rinsing is 1 ° DH or more and 50 ° DH or less.   The hardness of water used for the preparation of washing water, comprising the steps of washing the article to be washed in contact with washing water containing the powder detergent composition for clothing and water, and rinsing the article to be washed with water with water And / or the hand-washing washing method according to claim 4, wherein the hardness of water used for rinsing is 10 ° DH or more and 50 ° DH or less.