JPH09279185A - Liquid detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid detergent composition that contains a predetermined quantity of extract of cherry tree bark and is scarcely irritate human skin of hands and other parts, has sufficient detergent power, and is useful as a detergent for solid, wood, and leather surfaces, hair, and skin. SOLUTION: This liquid detergent composition comprises 0.001 to 5wt.% of an extract obtained from bark of cherry trees, e.g. rosaceous Prunus Yamazakura, etc., by drying fully the bark, chopping and grinding the dried dark, and soaking the processed bark in an extraction solvent such as acetone- water mixture (preferably in a quantity of 50-10000ml to 100g of the processed bark).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a liquid detergent composition having an extremely mild action on hands and skin, and more specifically, it is suitable for hard surfaces, wood surfaces, leather surfaces, hair or skin. It relates to a liquid detergent composition which can be used.

[0002]

2. Description of the Related Art A number of proposals have been made for detergent compositions having good detergency in washing various stains. However, excellent cleaning power cannot be said to be a truly good cleaning composition. For example, since there is a sufficient possibility that the cleansing agent will come into contact with the skin in any washing, it is desired that the cleansing agent has extremely low irritation to the skin, that is, has a mild action on the skin.

In particular, cleaning agents for hard surfaces such as tableware, cooking utensils, cooktops, various kinds of glass, pottery and porcelain, and wooden surfaces such as houses, or shampoos for hair and skin, body shampoos, etc. Occasionally, direct contact with the hands and the skin cannot be avoided, so that rough skin on the hands and the skin during use has been a problem.

As a result, in order to prevent direct contact with the hands and skin, the development of a cleaning agent which has excellent detergency and is mild to the hands and skin has been promoted. . Based on such needs, the use of nonionic surfactants using sugar fatty acid esters and amphoteric surfactants using amino acid derivatives has been proposed. In addition, it has been proposed to use an anionic surfactant which has been conventionally used as a cleansing agent, in combination with an amine oxide or an amphoteric surfactant to reduce and alleviate the irritation to the skin. Certainly, these cleaning agents are considerably effective as compared with the conventional ones, but in the present situation, they are not yet sufficient.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a mild liquid detergent composition which satisfies the performance as a detergent such as detergency and which does not irritate the skin of the hands as much as possible.

[0006]

According to the present invention, there is provided a liquid detergent composition containing 0.001 to 5% of an extract of cherry bark.

Since the liquid detergent composition of the present invention contains 0.001 to 5% of an extract of cherry bark, its irritation to the skin of the hands is sufficiently alleviated.
It is useful as a kitchen cleaner and a household cleaner for hard surfaces such as glass, pottery, porcelain and plastics.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the detergent composition of the present invention, cherry bark extract is used as an essential component. The cherry bark is Prunus jamasakura of the Rosaceae and its related plant, Prunus verec.
undea), Prunus pauciflora (Prunu)
bark, such as S. paciflora).

The method for extracting the cherry bark is not particularly limited, and a general method can be used. For example, after the cherry bark is sufficiently dried, it is shredded and crushed. It is advantageous to make it into a powder form because extraction is easy. Next, the pretreated product is subjected to solvent extraction. At this time, as the solvent, in addition to water, various organic solvents and mixtures thereof with water, propylene glycol, butylene glycol, chloroform, ethyl acetate, acetone, benzene, and mixtures thereof are used.

In this case, the amount of the extraction solvent used is about 50 to 10,000 ml per 100 g of the pretreated cherry bark. In addition, the extraction treatment may be performed at room temperature, or 30 to 1
It may be performed by heating to about 00 ° C. In order to effectively carry out this solvent extraction, it is advantageous not only to keep it in a stationary state in the solvent but also to appropriately stir it so that the solvent sufficiently penetrates into the inside.

After the extraction treatment, solid-liquid separation is performed by using known means such as filtration, centrifugation, decantation and the like. The obtained extract may be used as it is, or may be concentrated and used, or the solvent may be distilled off and the powder may be used.

In preparing the composition of the present invention, the cherry bark extract obtained by the above-mentioned method is used as a solid content of 0.
001 to 5% by weight, preferably 0.01 to 1% by weight. If this blending amount is too small, the effect of alleviating hand skin irritation becomes insufficient. On the other hand, if the blending amount is large, it is not suitable for commercialization because it is colored brown or the aroma is lost.

The detergent composition of the present invention may contain a detergent component conventionally used for a detergent and other optional components depending on its use and purpose. An example of the detergent component is an anionic surfactant. Specific examples of typical anionic surfactants are as follows.

An alkyl represented by the general formula ROSO ₃ M (wherein R represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms, and M represents an alkali metal, an alkaline earth metal, ammonium or an alkanolamine). Or an alkenyl sulfate ester salt.
Specific examples thereof include sodium lauryl sulfate.

General formula R (OCH ₂ OCH ₂ ) nOSO ₃ M (In the formula, n represents 0.5 to 8 and R represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms. M represents an alkali metal or alkaline earth. A polyoxyethylene alkyl or alkenyl sulfate ester salt represented by a group metal, ammonium or alkanolamine). Specifically, C
₁₂ Alkyl ether sulfate sodium salt (n =
3).

General formula

Embedded image (In the formula, R represents an alkyl group having 8 to 20 carbon atoms, and M represents an alkali metal, an alkaline earth metal, ammonium, or an alkanolamine.). Specific examples include C ₁₀ -C ₁₈ sodium alkyl benzene sulfonate.

General formula RSO ₃ M (In the formula, R represents an alkyl group having 10 to 18 carbon atoms. M
Represents an alkali metal, alkaline earth metal, ammonium or alkanolamine. ) Is an alkane sulfonate. Specific examples include C ₁₀ ~ ₁₃ sodium alkanesulfonate.

General formula RO (CH ₂ CH ₂ O) nCH ₂ COOM (In the formula, n is 1 to 6, R is an alkyl group or alkenyl group having 10 to 18 carbon atoms, and M is an alkali metal or alkaline earth metal. Alkyl or alkenyl ether carboxylate represented by a metal, ammonium or alkanolamine. Specific examples include C _{12 to} C ₁₃ alkyl ether carboxylic acid sodium salt (n = 4).

General formula

Embedded image (In the formula, R ¹ is an alkyl group or an alkenyl group having 4 to 16 carbon atoms, n is 3 to 25, R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M is a hydrogen atom, an alkali metal, or an alkaline earth. Α-sulfo fatty acid derivative represented by a group metal, ammonium or alkanolamine). Specific examples include methoxyhexaethylene glycol α-sulfolauric acid ester sodium salt.

General formula

Embedded image (In the formula, R is an alkyl or alkenyl group having 8 to 16 carbon atoms, n is 1 or 2, and M is an alkali metal, alkaline earth metal, ammonium or alkanolamine.). Specific examples include N-lauroyl N-methyl β-alanine sodium.
Moreover, you may use the acyl amino acid salt (N acyl glutamate etc.) of other structures.

C _10-18 alpha-olefin sulfonates. (The type of salt is an alkali metal, an alkaline earth metal, ammonium or an alkanolamine.) Specific examples include C ₁₄ alpha olefin sulfonic acid sodium salt.

C _8-18 α-sulfo fatty acid alkyl ester salt. (The type of salt is an alkali metal, alkaline earth metal, ammonium or alkanolamine.) Specific examples include C _12-14 α-sulfofatty acid methyl ester sodium salt.

C _8-18 sulfosuccinate. (The type of salt is an alkali metal, an alkaline earth metal, ammonium or an alkanolamine.) Specific examples include C ₁₂ sulfosuccinic acid sodium salt.

C _8-18 alkyl phosphate salt.
(The type of salt is an alkali metal, an alkaline earth metal, ammonium or an alkanolamine.) Specific examples include C ₁₂ alkylphosphate sodium salt.

C _10-22 natural fatty acid soap. As the natural fatty acid soap, a soap composed of an alkali metal, an alkaline earth metal, ammonium or an alkanolamine salt obtained by neutralizing a fatty acid obtained by saponifying fats and oils such as palm oil, palm oil, beef tallow, and lard is a soap. Widely included. Among them, soaps composed of various salts such as potassium salt and sodium salt are widely used. These fatty acids have a carbon number of C ₉ -C _22, it may be the saturates or unsaturation.

Further, as a performance enhancing agent in order to improve the performance of these anionic surfactants include alkyl amine oxides of C ₈ ~ _16, alkylamido amine oxides,
And semi-polar surfactants such as alkyl hydroxy amine oxides, C ₈ ~ ₁₆ alkyl betaines, amphoteric surfactants such as alkyl amidopropyl betaine, cationic surfactants such as trialkylammonium chloride C ₈ ~ ₁₄ are used.

Representative semipolar surfactants include lauryl dimethyl amine oxide, cetyl dimethyl amine oxide, palmityl dimethyl amine oxide, lauric acid amide dimethyl amine oxide and the like.

Representative alkylbetaines include decylbetaine (ie N-decyldimethylglycine), cetylbetaine, stearylbetaine, cocobetaine, etc. Representative amidebetaines include cocoamidopropylbetaine (ie N-3-coconut oil acylaminopropyl-NN-dimethyl-2-aminoacetate), laurylamidopropyl betaine, laurylamidomethyl betaine, myristylamidomethyl betaine,
Examples include palmitylamidobetaine and stearylamidomethylbetaine.

Although various performance-improving agents are used for ordinary detergents, these performance-improving agents can also be appropriately used. Examples of these performance improvers include the following.

General formula R ¹ O (AO) nR ² (wherein R ¹ is an alkyl group or alkenyl group having 8 to 18 carbon atoms, R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and n is 3 25, AO represents an oxyalkylene group having 2 to 4 carbon atoms). Specifically, C ₁₂ polyoxyethylene alkyl ether (n = 9) may be mentioned.

General formula R--CH ₂ --COO-(AO) n--CH ₃ (wherein R is an alkyl or alkenyl group having 8 to 18 carbon atoms, n is 3 to 25, and AO is 2 to 4 carbon atoms). Represents an oxyalkylene group of). Specific examples include methoxyhexaethylene glycol lauric acid ester.

General formula

Embedded image (In the formula, R represents an alkyl group having 8 to 18 carbon atoms, and X represents a hydrogen atom or a hydroxyethyl group.). Specific examples include lauric acid diethanolamide.

[0033] Other polyoxyethylene sorbitan esters of _{C 8 ~ 16 (n = 1~10} ), sorbitan esters of C ₈ ~ _16, sorbitol esters of C ₈ ~ _16, sucrose fatty acid esters of C ₆ ~ _16, C ₆ methyl glucoside ester of ~ _16, C ₆ ~ ₁₆ methylmannoside esters, C ₆ ethyl glucoside ester of ~ _16, C ₆ ~ ₁₆ of the N- methyl glucamide, cyclic N- methyl glucamide of C ₆ ~ _16, C ₆ ~ ₁₆
Alkyl glucosides, alkyl polyglucosides C ₆ ~ _16, the nonionic surfactants such as alkyl glyceryl ether of C ₆ ~ ₁₆ can be used for.

Further, in the liquid detergent composition of the present invention, various additives usually used according to various cleaning purposes can be used as a detergent component. For example, lower alcohols such as ethanol, polyhydric alcohols such as propylene glycol, glycerin and sorbitol, hydrotropes such as toene sulfonate, xylene sulfonate, polyethylene glycol, sequestering agents, antibacterial agents, pigments, fragrances, and opacifiers. Agents, thickeners, antioxidants and the like can be added.

Since the liquid detergent composition of the present invention has an extremely mild action on the hands and skin, it is used in a mode in which it comes into contact with at least a part of the human body, that is, for hard surfaces and wood surfaces. It is applied as a cleaning agent for hair, leather surface, hair and skin, and is particularly preferably used as a cleaning agent for hard surface. In this case, examples of the hard surface include metal surfaces such as tableware, cooking utensils, and cooktops, ceramic surfaces such as glass, pottery, and porcelain, and plastic surfaces. The wood surface includes furniture and pillar surfaces, and the leather surface includes surfaces of handbags and boots. Therefore, the liquid detergent composition of the present invention is useful as a detergent for tableware, a detergent for walls and floors for houses, a detergent for skin and hair such as body shampoo and shampoo.

[0036]

[Examples] As a test for evaluating the liquid detergent composition of the present invention, (1) a leanut detergency test, and (2) evaluation of mildness to hand skin were performed.

(1) The procedure of the leanut detergency test is as follows. 10 g of each of soybean oil and beef tallow specified in the Japanese Pharmacopoeia are dissolved in 60 ml of chloroform, and then 0.1 g of Oil Red is added and mixed well to prepare a soil solution. Soak a glass plate in this solution to contaminate it.
Air-dry at a temperature of 30 ° C. for 30 minutes or more to remove chloroform, and to prepare flake pieces (fouling amount 20 to 23 mg / sheet).
6 pieces of this dirt piece at 25 ° C and 700 ml of 0.15% by weight
After washing by stirring in the detergent solution at 250 rpm for 3 minutes, air-dried and weighed, the oil removal rate after washing was calculated by the following formula to obtain the washing power.

[Equation 1] W ₀ : Weight of glass plate W ₁ : Weight of glass plate after contamination W ₂ : Weight of glass plate after washing and air drying

(2) Evaluation of mildness to hand skin A 6% by weight aqueous solution of the composition and a comparative product are allocated to the left and right, and the operation of dipping each hand for 30 minutes once a day for 4 consecutive days is carried out. The degree of rough hands was compared and judged based on the following criteria. The judgment was made by 10 panelists.
The evaluation criteria are as follows. Almost Rough 0 A little Rough 1 A little Rough 2 Rough Rough 3 Severe Rough 4

Reference Example 1 Cherry bark was thoroughly dried and then pulverized, and 100 g of the pulverized product was added to 30
Extraction treatment was performed with 2000 ml of a wt% ethanol aqueous solution.
Next, the extraction residue was filtered, and the extract was heated under reduced pressure to obtain a solid content of 12 g.

Reference Example 2 Cherry bark was thoroughly dried and ground, and then 100 g of the ground product was extracted with 1000 ml of hot water. After cooling, the extraction residue was filtered, and then the extract was heated under reduced pressure to obtain 9 g of a solid matter.

Examples 1 to 3 Using the cherry bark extract (ethanol extraction) obtained in Reference Example 1,
A detergent composition having the composition shown in Table 1 was prepared, and a leanut detergency test and a mildness evaluation for hand skin were performed. Table 1 shows the results. As the fragrance, the mixed fragrance shown in Table 2 was used.

Examples 4 to 6 Using the cherry bark extract (water extraction) obtained in Reference Example 2, a detergent composition having the composition shown in Table 1 was prepared, and a leanut detergency test and mildness to hand skin were performed. Was evaluated. Table 1 shows the results. As the fragrance, the mixed fragrance shown in Table 2 was used.

Comparative Examples 1 and 2 A cleaning composition containing no cherry bark extract was used as a comparative example.
The leanut detergency test and the mildness to the hand skin were evaluated. Table 1 shows the results.

[0044]

[Table 1]

[0045]

[Table 2- (1)]

[0046]

[Table 2- (2)]

[0047]

[Table 2- (3)]

[0048]

[Table 2- (4)]

From the results shown in Table 1, the liquid detergent composition of the present invention has extremely low irritation to the hand skin without impairing the detergency (that is, having a satisfactory detergency). I understand.

[0050]

Since the liquid detergent composition of the present invention contains 0.001 to 5% by weight of the extract of cherry bark, it has satisfactory detergency and is extremely irritating to hands and skin. Since it becomes low, it is extremely useful as a detergent for hard surfaces, wood surfaces, leather surfaces, hair and skin.

Front Page Continuation (72) Inventor Hiroaki Uebayashi 1-3-7 Main Office, Sumida-ku, Tokyo Within Lion Co., Ltd.

Claims (1)

[Claims] 1. A liquid detergent composition comprising 0.001 to 5% by weight of an extract of cherry bark.