KR100857163B1 - Mild human cleanser and selective cleaning method using the same - Google Patents

Abstract

The present invention is to prepare a soap base by neutralizing D (-)-N-methylglucamine and fatty acids having a carboxyl group to be used as a soap-type anionic surfactant and co-surfactant, conditioning agent It further comprises an anionic surfactant, etc. to prepare a mild human detergent, and to deposit it on a water-insoluble medium and to dry the selective cleaning method to use.

D (-)-N-methylglucamine * Water insoluble media * Selective cleaning

Description

Mild cleanser of human body and optional wash method using it}

1 is a graph showing the results of measuring the facial cleansing power of the Examples and Comparative Examples of the present invention.

The present invention is to prepare a soap base by neutralizing D (-)-N-methylglucamine and fatty acids having a carboxyl group to be used as a soap-type anionic surfactant and co-surfactant, conditioning agent The present invention relates to a mild human cleanser further comprising an anionic surfactant, and to a selective cleaning method for depositing and drying the cleanser on a water-insoluble medium.

In general, it includes not only waste products and sebum components that are naturally attached to skin or hair, but also a function to remove dead skin cells of the outermost layer due to the proliferation of skin cells, and a technology that effectively removes makeup after makeup for beautiful appearance. Can be defined as washing. Meanwhile, the cleaning products are typically sold in various forms such as solid soaps, creamy foams, liquid or gel cleansers.                         

As a method for cleaning, soap has been used since ancient times, and the soap is made by reacting strong alkaline agent to animal or vegetable oil and using it as a main agent, and it is commercialized by adding emulent, fragrance, coloring agent, etc. will be. While these soaps have excellent cleaning power, they can feel pulling after use.In the case of makeup soaps, they have an alkaline pH of about 10, which swells the skin momentarily, and the skin is pulled by washing even lipids that are effective ingredients in the skin with excessive cleaning power. Compared to the liquid solution, it is strong alkaline and may cause skin irritation temporarily.

In addition, a general cleaning agent may be a cleansing foam. The cleansing foam uses potassium soap, acyl glutamate, and mono alkyl phosphate as a periodic agent, and has no irritation than soap and has a refreshing feeling after use, but the cleaning power is somewhat poor. In addition, the lack of make-up or exfoliation function is somewhat insufficient as a perfect face wash technology.

In general, the important properties of the cleaning agent are the cleansing function and moisturizing, mildness to hair or skin without any irritation. , Sebum and makeup ingredients have been effectively removed. However, the technique for satisfying the two functions of the cleaning power and the moist moisturizing power after use by using these face washes is a very difficult technique. In particular, it is very difficult to simultaneously provide an effective post-wetting moistness (conditioning effect). In general, there are two main components of conditioning. One of them is a component of the water-soluble polymer, which is mainly composed of a polymer having a cationic charge, which does not suppress bubbles in the cleaning, but the water-soluble component does not adhere to the skin and is almost removed when rinsing. Another component is an oily component, such as silicone oil, triglycerides, waxes, etc., which have an effect of suppressing bubbles.

In general, as a technology for mild detergent, a composition using N-acyl glutamate and cocamido propyl betaine is disclosed in Korean Patent Publication No. 1998-051476. This is a known technique that is a hypoallergenic cleanser but has a lower bubble than a general soap. It is refutable to mild cleaning technology because it feels slippery after use and C12 is bonded to acyl group among N-acyl glutamate. Japanese Patent Application No. 73119550 discloses a detergent mainly composed of monosodium N-oleyl-L-glutamate and lecithin, which is superior to the non-lecithin-containing detergent and the lecithin itself removes oil. It has a function. However, there is a problem that less bubbles are formed due to the antifoaming caused by lecithin, so that the cleaning power is lowered.

On the other hand, as a technique for improving the physical cleansing power using an insoluble intermediate medium in the UK Patent Application No. GB-A-748061, a combination of lauryl sulfonate, methanol, ethanol deposited on the leaf-shaped cleansing tissue, British Patent Application No. GB-A-760232 describes a method of using a water-insoluble medium by immersing a detergent in a cellulose fiber fabric, and British Patent Application GB-A-2163947 uses a cleaning cloth to clean a non-woven fabric. The method used by depositing is described. In addition, British Patent Application GB2218430 describes a method in which a detergent is sufficiently deposited on an insoluble substrate and then dried, and then dried using a hot air dryer to remove the cleansing cloth and remove the skin without irritation. U.S. Patent Application No. 4948585 describes an example in which a cleansing agent is deposited on a polyurethane gel for patients and a nonwoven paper is adhered to the upper surface to use the intermediate of the face wash in a double structure.

Therefore, the present inventors studied a formulation having excellent washing ability and foaming ability, which is an advantage of soap, and excellent stability to skin. Thus, D (-)-N-methylglucamine neutralized a fatty acid containing a carboxyl group, and thus, Was prepared as a soap-type anionic surfactant and further contains auxiliary surfactants, conditioning agents, anionic surfactants, etc. The mild human cleanser has excellent rinsing and foaming properties and excellent skin stability. This invention was completed.

Accordingly, it is an object of the present invention to provide a mild human cleanser having excellent cleansing and foaming power and excellent stability to skin.

In addition, another object of the present invention is to provide a selective cleaning method using the mild human detergent is deposited on a water-insoluble medium and dried.

In order to achieve the above object, in the present invention, a soap base is prepared by neutralizing a fatty acid having D (-)-N-methylglucamine (D (-)-N-methylglucamine) and a carboxyl group as a soap-type anionic surfactant. And a secondary surfactant, a conditioning agent, an anionic surfactant, and the like, to prepare a mild human cleansing agent.

In addition, there is provided a cleaning tissue prepared by depositing and drying the mild human cleanser in a water-insoluble medium. In addition, it includes a selective cleaning method using the cleaning tissue.

Tissue in the present invention is meant to include all prepared by depositing and drying the mild human cleanser in a water-insoluble medium.

Hereinafter, the present invention will be described in detail.

D (-)-N-methylglucamine of the present invention is a substance obtained by reacting glucose and methylamine with a reducing catalyst in the presence of hydrogen, and is a stable substance that does not discolor or deteriorate at or below 150 ° C. . In addition, since the solubility of the D (-)-N-methylglucamine is 1: 1 dissolved with water in the aqueous phase, it is possible to make a salt soap by reaction with various fatty acids. It is a weak alkaline agent that exists in the liquid state after the reaction and is excellent in the stability of discoloration and odor in a transparent state. It is a drug having excellent safety enough to be used as a neutralizing agent of medicines by reacting with a weak acid fatty acid to produce a neutral detergent.

Neutralize the fatty acids having D (-)-N-methylglucamine and carboxyl groups to prepare soap bases and use them as soap-type anionic surfactants, and further contain auxiliary surfactants, conditioning agents, and anionic surfactants. Prepare a human cleanser. The reaction can be expressed as follows.                     

+

= Soap

+

= Soap

As the anionic surfactant used in the present invention, D (-)-N-methylglucamine soap itself may be contained in an amount of 1 to 20% by weight based on the total weight, and sarcosinate and sulfonate as an auxiliary surfactant. (sulfonate), sulfate (sulfate), taurate (taurate), isethionate (isethionate), phosphate (phosphate) and a mixture thereof may contain 1 to 5% by weight based on the total weight.

In addition, the co-surfactant used in the present invention is cocamide propyl betain (n-Cocoyl-N-methyl Taurate), cocamide DEA (cocamide DEA), It is preferably selected from the group consisting of Sodium Cocoyl Isethionate, Sodium Lauryl Sarcosinate, the content of the auxiliary surfactant may contain 1 to 5% by weight based on the total weight Can be.

 In addition, it may contain a conditioning agent to alleviate the irritation of the skin and form a protective film, the conditioning agent is a fatty acid ester, polyol polyester, glycerin monoester, glycerin diester, glycerin triester, sebum hydrocarbon, lanolin mineral oil , Silicone oils, silicone gums, vegetable adducts, petrolatum, triglycerides, polyquaternium, nonionic polymers and mixtures thereof.

In the present invention, the saponification reaction using D (-)-N-methylglucamine as an alkaline agent shows a difference in foaming power and detergency according to the type of alkaline agent reacting with each type of fatty acid. Fatty acids used are Myristic acid> Lauric acid> Palmitic acid> Sterric acid.

The characteristic of the D (-)-N-methylglucamine soap of the present invention is that it is excellent in rinsability, which is an advantage of general soap, and excellent foaming force when a saponification reaction with a specific fatty acid is achieved. This is an excellent soap. In particular, by containing five hydroxyl groups in one molecule, it becomes a liquid phase excellent in flowability after the reaction, and excellent in transparency, suitable for transparent products.

D (-)-N-methylglucamine soap of the present invention can be prepared in various forms, such as a liquid foam foaming detergent, gel-type cleanser, cream-type cleanser, foam-type body cleaner, gel-type body cleaner, cream-type body cleaner .

On the other hand, D (-)-N-methylglucamine soap, the main ingredient of the surfactant having a foaming and cleaning agent is a mild cleaning agent with weak cleaning power, so it is physically old using a water-insoluble medium when washing or washing the human body. It can remove skin contaminants such as keratin, sebum, and wax-based makeup. By using the water-insoluble medium, facial cleansing of the face area and T zone (nostril, forehead) using the makeup by physical effect, and mild cleansing by selective cleaning method without irritating the skin is possible Do.

The washing method using the water insoluble media deposits the facial cleanser of the present invention on paper (specially treated water insoluble substrate which does not dissolve in water), fiber (nonwoven substrate, woven substrate), natural sponge, synthetic sponge, and net mesh of polymer. After forming the foam by buried water, the U zone and the T zone are used by controlling the strength of physical force or by depositing the cleaning agent of the present invention on the water-insoluble medium for one-time use and then foaming using water. It is an optimal technology that provides effective cleaning and moisturizing by suggesting a system that can be used after it is released.

The water insoluble media may be paper, fibers (non-woven substrates, woven substrates), natural sponges, synthetic sponges, polymer mesh nets, and the like. In more detail, it is important to have water insolubility in water by calcifying general pulp, mulberry pulp, etc. in paper, and in the case of fiber, nonwoven fabric based on cloth, polyester, and rayon woven from fiber. Use liquid or gel-like detergent by using cotton fiber, polyurethane gel, natural / artificial sponge, etc. to make foam by contact with water, or use it by depositing on the above water-insoluble media and drying it, then buried in water to make bubbles. This severe part is cleaned by the soft friction.

For more improved selective cleaning, use non-woven fabric with soft material, insoluble pulp in cotton fiber and water, and laminating the material having two phases opposite to each other. There is a method of using the water when you dry and use it when you dry. The process of depositing the cleaning agent on the cleaning medium is used by appropriately containing polyester in a cotton or rayon nonwoven fabric. Cotton and polyester can be used in combinations of 100: 0, 80:20, 70:30, and 50:50. The optimal ratio is 70:30 and rayon: polyester is 70:30 and 50:50. , 30:70 can be used in the ratio, and the optimum ratio is 50:50. Detergent is deposited using this and dried using hot air, and then the insoluble pulp (doughwood paper) having a rough surface is laminated with an adhesive and then cut into a predetermined size.

Although an Example and a comparative example are given to the following and this invention is demonstrated in more detail, it is not limited only to these examples of this invention.

[Examples 1 and 2 and Comparative Example 1]

1 to 2 and Comparative Example 1 was prepared with the components shown in Table 1, and Examples 1 and 2 were washing compositions based on D (-)-N-methylglucamine soap, and Comparative Example 1 was N. -It is a cleaning composition mainly composed of acyl glutamate, organic carboxylic acid and phosphoric acid.

Ingredient Comparative Example 1 Example 1 Example 2 Purified water to 100 To 100 To 100 Methylglucamine - 5 5 Mystic acid - 7.7 3.5 Mount Lauri - - 4 Acyl Glucamate MS-11 10 - - 1.3 BG 5 5 5 glycerin 7 7 7 Monoalkyl phosphates 5 - - Cocaamidopropyl Betaine 5 5 5 Cocoyl-N-methyl Taurate 2 2 2 Cocamide DEA 2 2 2 Vaseline 0.5 0.5 0.5 Polyquaternium-7 One One One Viscosity (cps) 1000 700 500 pH (25 ℃) 6.9 8.3 8.3

Test Example 1 Mildness Measurement

Moisturizing power was measured after a certain period of time after washing, and mild detergent was evaluated by evaluating the loss of useful phospholipids remaining on the skin surface. In Comparative Examples and Examples, 5 minutes after washing the face, a resistance value was measured using a corneometer to compare moisturizing power. The results are shown in FIG.

As can be seen in Figure 1, in the case of the comparative example there was a momentary loss of the moisturizing power after using the detergent, the mild detergent according to the embodiment of the present invention was confirmed that the excellent moisturizing power retention. This means that the soap according to the invention is a mild detergent.

Test Example 2 Bubble Force Measurement

 In order to measure the foaming power of the Examples and Comparative Examples prepared above, a hand foam test was used. In this method, using a cylinder having a length of 250 ml, 20 ml of 1% aqueous solution was added to the Examples and Comparative Examples, and then measured 20 times in the vertical and horizontal directions. The results are shown in Table 2.

Condition Comparative Example 1 Example 1 Example 2 1% sol (30 ℃) 200 mm 195 mm 230 mm

As can be seen in Table 2, it was confirmed that the bubble power of the Example is excellent.

Test Example 3 Determination of Cleaning Power

Detergency generally correlates with surface tension. Therefore, the cleaning power was evaluated by the interfacial tension, and the measuring instrument used KRUESS PROCESSOR TENSIOMER. First, after preparing a 0.02% soap solution, the interface tension of each sample solution was measured using a surface tensiometer at a temperature of 25 ℃. The results are shown in Table 3.

Condition Comparative Example 1 Example 1 Example 2 0.02% (sol) 28.93 mN / m 28.8 mN / m 27.98 mN / m

As can be seen in Table 3, it showed similar cleaning power of the Example and Comparative Example, it was confirmed that the Example is a mild cleaning agent having a strong cleaning power.

[Test Example 4]

In order to evaluate the selective cleaning of the Examples and Comparative Examples, it was evaluated by physically removing contaminants at specific sites without irritation to the skin depending on the water-insoluble medium. Water insoluble media were pulp (Korean paper made from hemp pulp), nonwoven fabric with a rayon and polyester ratio of 6: 4, and cotton nonwoven fabric. The measuring method was 5 cm × 5 cm in size, and the lipstick was artificially attached to the skin surface with a constant force. Thereafter, the cleaning agents of Examples and Comparative Examples were precipitated on the nonwoven fabric, and the excess cleaning agent was removed using a roller of constant force, dried, and the lipstick was washed, evaluated according to the following criteria, and the results are shown in Table 4.

Sensory evaluation

5 points: perfect cleaning, 3 points: 1/2 erased, 1 point: no cleaning

division Comparative Example 1 Example 1 Example 2 Paper mulberry pulp 5 5 5 Nonwoven Fabric (Rayon 5: Polyester 5) 3 3 5 Cotton nonwoven 3 3 3 Cotton: Paper mulberry pulp 5 5 5

As can be seen in Table 4, similar selective cleaning results were obtained in Example 1 and Comparative Example 1. Therefore, the use of the mild detergent of the present invention prevents the use of the phospholipids remaining on the skin and is a source of contamination. Confirmed that it can.

As described above, the mild detergent of the present invention was objectively evaluated for the mild cleaning, the rich bubbles, and the moisturizing power, which are the basic conditions of the detergent, and the important refreshing rinsability among the facial cleansing factors of Koreans was introduced by introducing a new alkaline agent. Soap is excellent because it is the main material. In addition, the source of contaminants on the surface of the natural or artificially attached skin is selectively removed by using a water-insoluble medium to differentiate the human body cleaner than conventional technologies.

Claims (6)

A soap base is prepared by neutralizing D (-)-N-methylglucamine and a fatty acid having a carboxyl group and containing it as a soap type anionic surfactant, cosurfactant, conditioning agent, and anion. A mild human cleanser further comprising a surfactant and the like. According to claim 1, wherein the co-surfactant is cocamide propyl betain (cocamide propyl betain), n-Cocoyl-N-methyl Taurate (n-Cocoyl-N-methyl Taurate), Cocamide DEA (cocamide DEA) , Sodium Cocoyl Isethionate (Sodium Cocoyl Isethionate) or Sodium Lauryl Sarcosinate (Sodium Lauryl Sarcosinate), characterized in that selected for the human body cleaner. The method of claim 1, wherein the conditioning agent is a fatty acid ester, polyol polyester, glycerin monoester, diester, glycerin triester, sebum hydrocarbon, lanolin mineral oil, silicone oil, silicone gum, vegetable adduct, petrolatum, triglyceride, Cleaner for human body, characterized in that selected from the group consisting of polyquaternium, nonionic polymers or mixtures thereof. A cleaning tissue prepared by depositing the human detergent of any one of claims 1 to 3 in a water insoluble medium and drying it. The method of claim 4, wherein the water-insoluble medium is selected from the group consisting of pulp, mulberry pulp, woven cloth, polyester, rayon-based nonwoven fabric, cotton fibers, polyurethane gel, natural and artificial sponges Cleaning tissue.  The selective cleaning method according to claim 4, wherein the cleaning tissue according to claim 4 is selectively applied where cleaning is required.

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