TWI448307B - Washing agent composition - Google Patents

Description

Detergent composition

The present invention relates to a hair or a hair which can reduce the stickiness during use and improve the slipperiness after use, and can effectively suppress the itching which is easily generated after use, and does not change the color tone over time. A detergent composition for the skin.

In recent years, with the change of lifestyle, the awareness of cleanliness in family life has increased. In particular, in hair or skin cleansers, there is an increasing demand for various functions or effects. The hair or skin cleansing agent has a basic function as a detergent, that is, it removes exogenous dirt caused by dust or the like, or intrinsic dirt caused by sebum, sweat, or the like. For hair or skin cleansers, not only the above basic functions but also additional functions are required. The additional function required is that it does not have the feeling of stickiness during washing or the sudden pain or discomfort of the skin after washing, and achieves a refreshing smooth and smooth retouching function; The hair is soft, smooth, comfortable, and moisturized.

In order to satisfy such a demand, the detergent tends to have various functional compounds added depending on the purpose (for example, Patent Document 1 to Patent Document 5). That is, in addition to the basic component which realizes the basic function of washing as a detergent, the conventional detergent uses various additives. Therefore, there are sometimes concerns about the use of detergents to enhance irritation or itching of the skin; the use of detergents is slippery; the slipperiness disappears after use of the detergent; the addition of ingredients over time The color tone of the detergent is changed by changing.

As mentioned above, there is a tendency for detergents to require various additional functions. On the other hand, in recent years, there have been cases in which patients with sensitive skin and atopic dermatitis have increased, and there have been many complaints about skin itching after washing, and there is a strong demand for washing without itching after washing. Agent.

The itching caused by washing, or the stickiness during use, is sometimes caused by any of a variety of additives. However, one of the main causes is a surfactant which is responsible for the cleaning performance of the detergent. The countermeasure is generally considered to reduce the amount of use of the surfactant, but in order to maintain the cleaning performance at a level above a certain level, the amount of the surfactant to be used cannot be reduced. Therefore, it is difficult to effectively suppress itching or stickiness.

In view of such a situation, it is considered that a composition having a low skin irritation and a mild low irritation detergent composition is used as a component. However, in such a composition, not only the cleaning performance is lowered, but also the target "suppresses the itching caused by washing and reduces the stickiness during use".

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2004-035563

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2005-089671

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2006-117606

[Patent Document 4] Japanese Patent Laid-Open Publication No. 2008-266239

[Patent Document 5] Japanese Patent Laid-Open Publication No. 2008-290987

The present invention has been made in view of the above circumstances, and an object thereof is to provide a detergent composition which can reduce stickiness during use, improve slipperiness after use, and can effectively suppress itching which is likely to occur after use. And there will be no change in hue over time.

In order to solve the above problems and achieve the object, the present invention provides a detergent composition having the following constitution. Further, the detergent composition of the present invention is a detergent composition mainly used for hair or skin, but is not limited to these uses.

[1] A detergent composition comprising (A) an anionic surfactant, (B) a nitrogen-containing cationic polymer compound, (C) an acid, and (D) malto-oligosaccharide, a pH of 25 ° C The value is 3.0 to 6.5.

[2] The detergent composition according to the above [1], wherein the component (A) is at least one selected from the group consisting of alkyl sulfates and polyoxyethylene alkyl ether sulfates.

[3] The detergent composition according to [1] or [2], wherein the component (D) is at least one selected from the group consisting of maltotetraose and maltopentaose.

[4] The detergent composition according to any one of [1] to [3] wherein the component (B) is at least one selected from the group consisting of cationized cellulose and cationized starch.

[5] The detergent composition according to any one of the above [1], wherein the component (C) is at least one selected from the group consisting of citric acid and glycolic acid.

[Effects of the Invention]

The detergent composition of the present invention exerts the following effects: it reduces the stickiness during use, improves the slipperiness after use, and effectively suppresses the itching which is easily generated after use, and does not occur over time. Hue changes.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

As described above, the detergent composition of the present invention is characterized by comprising (A) an anionic surfactant, (B) a nitrogen-containing cationic polymer compound, (C) an acid, and (D) malto-oligosaccharide. (malto-oligo saccharide), pH at 25 ° C is 3.0 to 6.5.

Hereinafter, each component of the detergent composition configured as described above will be described in detail.

[(A) anionic surfactant]

The anionic surfactant which is the component (A) used in the present invention may, for example, be a carboxylic acid type surfactant, a sulfonic acid type surfactant, a sulfuric acid type surfactant or a phosphoric acid type surfactant.

Among these anionic surfactants, a sulfuric acid type surfactant is preferred. Specific examples of the sulfuric acid type surfactant include a sulfonic acid type such as a linear alkylbenzenesulfonate, an α-sulfofatty acid methyl ester salt, an α-olefinsulfonate or an alkanesulfonate, and an alkylsulfuric acid. Esters, polyoxyalkylene alkyl ether sulfates, and the like. Among these sulfuric acid type surfactants, an alkyl sulfate salt or a polyoxyalkylene alkyl ether sulfate salt is particularly preferred.

Among the above alkyl sulfate salts, an alkylsulfate salt having an alkyl group having 10 to 18 carbon atoms is preferred, and an alkylsulfate salt having an alkyl group having 12 to 14 carbon atoms is particularly preferred.

The polyoxyalkylene alkyl ether sulfate salt is preferably a polyoxyalkylene alkyl ether sulfate salt having an alkyl group having 10 to 18 carbon atoms, particularly preferably an alkyl group having a carbon number of 12 to 14 Alkyl ether sulfate salt. Further, the olefin moiety is preferably polyoxyethylene or polyoxypropylene, and particularly preferably polyoxyethylene. Further, the total average addition molar number of the ethylene is preferably in the range of 2 to 4. Examples of the counter ion of the anionic surfactant include an alkali metal salt, an alkaline earth metal salt, an ammonium salt, and an alkanolamine salt.

[(A) Amount of anionic surfactant]

The (A) anionic surfactant in the detergent composition of the present invention is a main base of the detergent composition, and is preferably formulated in an amount of 5 wt% to 40 wt% based on the total amount of the detergent composition. (% by weight), more preferably 10 wt% to 30 wt%.

When the blending amount is less than 5 wt%, the detergency of the detergent composition and the foaming power may be insufficient. In addition, when the amount is more than 40% by weight, the viscosity of the detergent composition (liquid) may be significantly increased, and the discharge property from the container may be deteriorated or the stability of the solution may be deteriorated.

[(B) Nitrogen-containing cationic polymer compound]

The nitrogen-containing cationic polymer compound (B) used in the present invention is a polymer compound having a cationic group or a group which can be ionized into a cationic group. The polymer compound as a whole also includes a cationic amphoteric polymer.

Specific examples of the (B) nitrogen-containing cationic polymer compound include cationized cellulose, cationized guar gum, and cationized starch. More preferably, these are cationized cellulose and cationized starch.

The above cationized cellulose is obtained by adding a cationic functional group to cellulose. Specific examples of the cationized cellulose include "POLYQUATERNIUM-10" which is O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride.

The degree of cationization of the above cationized cellulose is preferably in the range of from 0.1 meq/g to 3.0 meq/g, more preferably from 0.5 meq/g to 1.7 meq/g. When the degree of cationization is less than 0.1 meq/g, in the case of the detergent composition for hair, there is a case where the finger of the hair is deteriorated when the bubble is washed, and the hair after drying becomes a dry feeling. Happening. On the other hand, when the degree of cationization exceeds 3.0 meq/g, the storage stability of the detergent composition may be poor.

The molecular weight of the above cationized cellulose is preferably in the range of 100,000 to 3,000,000, more preferably 300,000 to 2,000,000. When the molecular weight of the cationized cellulose is less than 100,000, in the case of the detergent composition for hair, there is a case where the finger of the hair is deteriorated when the bubble is washed, and the hair after drying becomes a dry feeling. Case. On the other hand, when the molecular weight of the cationized cellulose exceeds 3,000,000, the storage stability of the detergent composition is poor, and the cationized cellulose is hardly dissolved in the detergent composition.

As a commercial item of the "POLYQUATERNIUM-10" of the above-mentioned cationized cellulose, for example, Leoguard LP, Leoguard GP, Leoguard MGP, Leoguard KGP, Leoguard XE-511K (above, trade name, manufactured by LION Co., Ltd.); UCARE LR-30M, UCARE JR-400, UCARE JR-30M (above, trade name, manufactured by DOW CHEMICAL JAPAN Co., Ltd.), CATINAL HC-100 (trade name, manufactured by Toho Chemical Industry Co., Ltd.), and the like.

The above cationized starch is obtained by adding a cationic functional group to starch. Specific examples of the cationized starch include "hydroxypropyltrimethylammonium chloride chloride" which is a quaternary ammonium compound containing starch and glycidylpropyltrimethylammonium chloride.

The degree of cationization of the above cationized starch is preferably in the range of from 0.1 meq/g to 3.0 meq/g, more preferably from 0.5 meq/g to 1.7 meq/g. When the degree of cationization is less than 0.1 meq/g, in the case of the detergent composition for hair, there is a case where the finger of the hair is deteriorated when the bubble is washed, and there is a feeling that the hair becomes dry after drying. . On the other hand, when the degree of cationization exceeds 3.0 meq/g, the storage stability of the detergent composition may be poor.

The molecular weight of the above cationized starch is preferably in the range of 100,000 to 3,000,000, more preferably 500,000 to 2,500,000. When the molecular weight of the cationized starch is less than 100,000, in the case of the detergent composition for hair, there is a case where the finger of the hair is deteriorated when the bubble is washed, and the hair after drying becomes a dry feeling. Happening. On the other hand, when the molecular weight of the cationized starch exceeds 3,000,000, the storage stability of the detergent composition is poor, and the cationized starch is hardly dissolved in the detergent composition.

Commercial products of "chlorinated hydroxypropyltrimethylammonium starch" as the cationized starch include Sensomer CI-50 (trade name, manufactured by Nalco Company); Amylomer 25L, Amylomer 50M (above, trade name, Made by Graefe Chemie); Farmal MS5940 (trade name, manufactured by Corn Products International), and the like.

The molecular weight of the above (B) nitrogen-containing cationic polymer compound can be compared with a polymer having a known molecular weight by a liquid chromatography method using a gel permeation chromatography (GPC) column. The method is determined. The molecular weight of the (B) nitrogen-containing cationic polymer compound shown in the present invention is a Gel Permeation Chromatography/Multi-angle Laser Light Scattering Detector (GPC-MALLS). And the value measured. Specifically, a TSK-GELα column (trade name, manufactured by Tosoh Co., Ltd.) was used, and a 0.5 mol/L sodium perchlorate solution was used as a mobile phase, and a polymer was measured by a multi-angle light scattering detector. The pure phase concentration is about 1,000 ppm of the mobile phase diluted sample solution at a wavelength of about 633 nm. The standard is polyethylene glycol having a known molecular weight.

[(B) Formulation amount of nitrogen-containing cationic polymer compound]

The (B) nitrogen-containing cationic polymer compound in the detergent composition of the present invention is a component which participates in the smoothness of the detergent composition of the present invention, and the amount thereof is relatively larger than the total amount of the detergent composition. It is preferably from 0.01 wt% to 5 wt%, more preferably from 0.1 wt% to 2 wt%. If the compounding amount is less than 0.01% by weight, there is a case where the smoothness is insufficient. When the blending amount exceeds 5 wt%, there is a case where the viscosity of the composition is remarkably increased and the discharge property from the container is deteriorated.

[(C) acid]

The detergent composition of the present invention has a pH of from 3.0 to 6.5 at 25 °C. When the pH is less than 3.0, the stability of the detergent composition of the present invention is deteriorated, and when the pH exceeds 6.5, the discoloration of the detergent composition of the present invention becomes remarkable.

In order to adjust the pH of the detergent composition of the present invention at 25 ° C to a range of 3.0 to 6.5, an acid as the component (C) is prepared. (C) The acid may be either an organic acid or a mineral acid, and the two types of acids may be used together. The pH of the detergent composition of the present invention can be adjusted by adding a base after the (C) acid is formulated.

Examples of the organic acid include a monocarboxylic acid, a dicarboxylic acid, a hydroxycarboxylic acid, and a polycarboxylic acid. Specific examples thereof include acetic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, glycolic acid, lactic acid, and hydroxyacrylic acid. , α-hydroxybutyric acid, glyceric acid, malic acid, tartaric acid, citric acid, and the like.

Further, examples of the inorganic acid include phosphoric acid and the like.

The (C) acid used in the present invention may be either an organic acid or a mineral acid as described above, and may be a mixture of two types of acids. However, it is preferably an organic acid. Among the organic acids, citric acid and glycolic acid are preferred.

Specific examples of the base for finely adjusting the pH of the detergent composition of the present invention include triethanolamine, triisopropanolamine, sodium hydroxide, potassium hydroxide and the like.

The pH of the detergent composition at 25 ° C can be measured, for example, by the method specified in the general test method of the cosmetic raw material standard (second edition). Specifically, according to the above general test method, the electrode of the pH meter can be directly inserted into the composition, and the pH value after the stabilization can be read and measured.

[(C) Acid dosage]

The (C) acid in the present invention is a component which defines the pH of the detergent composition of the present invention. The amount of the (C) acid to be added is preferably from 0.01% by weight to 5% by weight, more preferably from 0.1% by weight to 1% by weight based on the total amount of the detergent composition. When the compounding amount of the (C) acid is less than 0.01% by weight, the foaming power of the detergent composition may be insufficient. When the compounding amount of the (C) acid exceeds 5 wt%, the viscosity of the detergent composition may be remarkably lowered and the stability may be deteriorated.

[(D) Malto-oligosaccharide]

According to the study by the present inventors, it has been found that malto-oligosaccharide has neurokinin 1 (NK1) antagonism and has an effect of suppressing itching caused by substance P (substance P). By adding malto-oligosaccharide to the detergent composition, the itching caused by the (A) anionic surfactant can be greatly alleviated. This itching easing effect is enhanced by an appropriate combination with the component (B).

Specific examples of the (D) malto-oligosaccharide used in the present invention include malto-oligosaccharides of 2 to 8 sugars such as maltotetraose or maltopentaose. Among these, it is more preferable to use maltotriose, maltotetraose, and maltopentaose.

[(D) Amount of malto-oligosaccharide]

The amount of the (D) malto-oligosaccharide is preferably from 0.001% by weight to 50% by weight based on the total amount of the detergent composition. More preferably, it is 0.01 wt% to 35 wt%, and particularly preferably 0.1 wt% to 15 wt%.

When the compounding amount is from 0.001% by weight to 50% by weight, a multiplier effect due to the combination with the component (B) can be obtained. Further, when the blending amount is less than 0.001% by weight, the effects of the present invention are not exhibited. Further, even if the blending amount is more than 50% by weight, no improvement in effect is observed, and depending on the treatment method, stability or production becomes difficult, and therefore it is preferably not more than 50% by weight.

[(B) Formulation ratio of nitrogen-containing cationic polymer compound to (D) malto-oligosaccharide]

The compounding ratio of the (B) nitrogen-containing cationic polymer compound and (D) malto-oligosaccharide is not particularly limited. However, as shown in the examples below, if (B) the ratio of the nitrogen-containing cationic polymer compound to (D) malto-oligosaccharide [(B) nitrogen-containing cationic polymer compound / (D) malto-oligosaccharide When it is 1/20 to 1/1, the effect of enhancing and stabilizing each other's effects can be further improved.

(B) In a combination system of a nitrogen-containing cationic polymer compound and (D) malto-oligosaccharide, (B) a nitrogen-containing cationic polymer compound is associated with (D) malto-oligosaccharide to form a chain-like chain-chain Fit and become an association. The (D) malto-oligosaccharide suppresses (B) the excessive adsorption of the nitrogen-containing cationic polymer compound on the skin or hair due to the formation of the aggregate, thereby suppressing "stickiness". On the other hand, since (D) malto-oligosaccharide is retained on the skin for a long period of time due to (B) the nitrogen-containing cationic polymer compound, the itch-inhibiting effect by (D) malto-oligosaccharide is further improved. The above is presumed to be the action of the detergent composition of the present invention.

[other optional ingredients]

In addition to the (A) anionic surfactant which is an essential component, the detergent composition of the present invention may be formulated with a nonionic surfactant and an amphoteric surfactant. When the nonionic surfactant or the amphoteric surfactant is blended, one type may be used alone or two or more types may be used in combination as appropriate.

Examples of the nonionic surfactant include lauric acid monoethanolamine, lauric acid diethanolamine, coconut oil fatty acid diethanolamine, polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, and poly Oxyethylene hydrogenated castor oil and the like.

Examples of the amphoteric surfactant include alkylguanidinyl propyl betaine such as lauryl propyl betaine, alkyl dimethyl amine oxide such as lauryl dimethyl amine oxide, and alkyl dimethyl carboxymethyl group. Ammonium betaine, alkylcarboxymethylimidazolium betaine, N-(N'-nonylaminoalkyl)-N-hydroxyalkylaminocarboxylate, and the like.

In the detergent composition of the present invention, in order to further improve the refining performance, a polyoxynitride compound may be formulated.

The type of the polyoxyxene compound is not particularly limited, and a polysiloxane compound used in a shampoo composition can be usually used. For example, dimethyl polyoxyalkylene (including high-polymerized dimethyl polyoxyalkylene oxide, polyoxymethylene rubber), methylphenyl polyoxyalkylene, polyether modified polyoxo, polyamine modified Poly-oxygen, betained modified poly-oxygen, alcohol-modified poly-oxygen, fluorine-modified poly-oxygen, epoxy modified poly-oxygen, sulfhydryl-modified poly-oxygen, carboxyl-modified polyoxyl, fatty acid Modified polyfluorene oxide, polyoxynized graft polymer, cyclic polyfluorene oxide, alkyl modified polyoxymethylene, trimethylsulfonyl terminal dimethyl polyoxyalkylene, stanol-based terminal dimethyl poly Oxane and the like. These polyoxyxides may be used singly or in combination of two or more kinds as appropriate. Among these, dimethylpolysiloxane, polyether modified polyoxo, and polyamine modified polyfluorene are particularly suitable.

Further, as the polyfluorene oxide compound, for example, a product obtained by emulsifying and emulsifying the polyfluorene oxygen compound by an anionic surfactant may be used. Further, in order to obtain such an emulsion, the emulsifier or the emulsification method is not particularly limited. That is, the polyfluorene oxide compound can be obtained by using various emulsifiers and products obtained by various emulsification methods.

Further, in the detergent composition of the present invention, in addition to the above components, a component used in a usual detergent composition may be used insofar as the effects of the present invention are not impaired, for example, the solubilizing agent is ethanol or different. a lower alcohol such as propanol, etc., and a brightening agent is a long-chain fatty acid glycol ester such as ethylene glycol distearate, ethylene glycol monostearate or ethylene glycol dibehenate, and a brightening agent. The stabilizing agent is dimethyl diallyl ammonium chloride-propylene amide copolymer, N-methyl propylene methoxyethyl-N,N-dimethylammonium-α-N-methylcarboxy beet Alkali-alkyl methacrylate copolymer and the like. Similarly, an appropriate amount of a tackifier such as carboxymethyl cellulose or hydroxyethyl cellulose, ethylene diamine tetraacetic acid (EDTA), nitrilotriacetic acid (NTA), etc. may be appropriately formulated as needed. Chelating agents, perfumes, pigments, antiseptics, anti-fungal agents, etc.

[Example]

Hereinafter, an example of the detergent composition of the present invention will be described. The examples described below are exemplified in the case of the detergent composition for hair. Further, the following examples are intended to illustrate preferred embodiments of the invention and are not intended to limit the invention.

(Example 1 to Example 19)

A detergent composition for hair (Examples 1 to 19) having the compositions shown in the following (Table 1) to (Table 3) was prepared.

That is, (A) anionic surfactant is polyoxyethylene (POE) sodium lauryl ether sulfate (3E.O.), POE sodium lauryl ether sulfate (2E.O.), tetradecene sulfonate Sodium. Further, the (B) nitrogen-containing cationic polymer compound is a cationized cellulose, a cationized guar gum, or a cationized starch. Further, the (C) acid is citric acid or glycolic acid. Further, (D) malto-oligosaccharide uses maltotriose, maltotetraose, and maltopentaose. Further, each of the samples of Examples 1 to 19 was prepared by adding anhydrous sodium sulfate, sodium citrate (pH adjuster) and purified water as a common component.

The product names and raw material manufacturers names of the raw material components used in the composition shown in (Table 1) to (Table 4) and the product compositions shown in (Table 5) and (Table 6) appearing below are shown together. Appears below (Table 7).

(Comparative Example 1 to Comparative Example 4)

A detergent composition (Comparative Example 1 to Comparative Example 4) having the composition shown in the following (Table 4) was prepared.

Each characteristic of each of the samples of the above Examples 1 to 19 and Comparative Examples 1 to 4 was evaluated based on the following evaluation criteria. The evaluation results are collectively described below (Table 1) to (Table 4).

[Evaluation Experiment 1: Antipruritic effect (effect on spontaneous scratching behavior of hairless mouse)]

Eight-week-old female hairless mice (HOS: HR-1, Japan SLC Co., Ltd.) as the test animals were purchased as subjects.

The subject is placed at a temperature of 23 ± 1 ° C, a humidity of 60 ± 10%, and the light and dark cycle is set to (7:00 to 19:00 (bright) → 19:00 to 7:00 (dark)) SPF ( In the case of the specific pathogen, the above-mentioned subject is free to ingest a normal bait (manufactured by Nippon Agritech Co., Ltd., trade name "CE2") and water for one week of pre-feeding.

After the above-mentioned pre-feeding, the feet of the subject were anesthetized using Somnopentyl (Kyoritsu Pharmaceutical Co., Ltd.), and a magnet piece (diameter 1 mm, length 3 mm, manufactured by NeuroScience) was inserted under the skin of both feet and used for the experiment. .

(Measurement of scratching behavior)

After the above-mentioned pre-feeding, the mice anesthetized by Somnopentyl (Kyoritsu Pharmaceutical Co., Ltd.) were slept on a hot plate at 37 ° C, and each of the detergents of the above Examples 1 to 19 and Comparative Examples 1 to 4 was impregnated. 1 mL of cotton was inserted between the heating plate and the back of the mouse and immersed for 5 minutes. Then, the attached sample was rinsed with warm water of 40 ° C for 1 minute. Perform 2 or more operations per day for 4 consecutive days.

The scratching behavior was observed from the second day after the end of the above 4-day work. The scratching behavior was performed by using a MicroAct device (NeuroScience) to automatically measure the number of scratches for one hour and perform objective evaluation.

The test was carried out in a group of 12 mice, and the inhibition rate (P _ir (%)) was calculated from the number of scratches due to immersion according to the following formula (1). A significant difference test for each number of scratches was processed using the t test.

P _ir (%)={(A _standard- A _sample )/A _standard }×100 (1)

_Sample A: Number of scratches per sample group

A _standard : the number of scratches when the composition corresponding to each sample group contains only the anionic surfactant, that is, the composition of the component (A) and purified water

(Evaluation criteria for antipruritic effect)

5 points: 60 minutes of inhibition rate (P _ir ) is 60% or more

4 points: 60 minutes inhibition rate (P _ir ) is 50% or more and less than 60%

3 points: 60 minutes inhibition rate (P _ir ) is 40% or more and less than 50%

2 points: 60 minutes inhibition rate (P _ir ) is 30% or more and less than 40%

1 point: 60 minutes of inhibition rate (P _ir ) is 10% or more and less than 30%

0 points: 60 minutes inhibition rate (P _ir ) is less than 10%

The scores based on the above evaluation criteria are classified into the following levels A to D, and the evaluation results of the itching effect are shown in the respective tables.

(representation level)

The inhibition rate is 4 points or more: A

The inhibition rate is 3 points or more and less than 4 points: B

The inhibition rate is 2 points or more and less than 3 points: C

The inhibition rate is less than 2 points: D

[Evaluation Experiment 2: "Slipperiness" and "Slippery" according to the functional test]

The actual use evaluation was carried out by 10 women (length of hair: medium length to length) of 20 to 30 years old. Each sample was continuously used for 3 days, and the items of "stickiness at the time of washing" and "slip feeling after drying" were evaluated. The results are collectively described in (Table 1) to (Table 4) based on the following criteria.

<Evaluation criteria for functional test>

A: 8 out of 10 people answered 10

B: 5 to 7 of 10 answered as good

C: 3 to 4 of 10 answered as good

D: 0 to 2 of 10 are answered as good

[Evaluation Experiment 3: Change in Color Tone of Sample Preparation]

Approximately 30 g of each sample was placed in a 50 mL vial and stored at 40 ° C for 1 month, and similarly compared with the sample stored at -5 ° C, the degree of discoloration was evaluated using the naked eye. The results are collectively described in (Table 1) to (Table 4).

<Evaluation criteria for discoloration degree>

A: No discoloration was found.

B: I found a slight discoloration (no problem in terms of product value)

C: Discoloration found (there is a problem with the value of the product)

D: Significant discoloration was found.

The pH of the detergent composition at 25 ° C can be measured by a method specified in the general test method of the cosmetic raw material standard (second edition). Specifically, according to the above general test method, the electrode of the pH meter was directly inserted into the composition, and the pH value after the stabilization was read and measured.

The pH value of each sample was confirmed by this measurement method, whereby the composition component was adjusted. That is, the amount of sodium citrate added was adjusted for each sample so that the pH (25 ° C) was 5.5.

[Table 1]

[Table 2]

[table 3]

[Table 4]

According to the above (Table 1) to (Table 4), it is clear that (A) an anionic surfactant, (B) a nitrogen-containing cationic polymer compound, (C) an acid, and (D) malto-oligosaccharide are required. The detergent composition of Examples 1 to 19 and the composition of (B) a nitrogen-containing cationic polymer compound, (C) acid, and (D) malto-oligosaccharide ((D) malt In comparison with a comparative example in which one of the constituents of the oligosaccharide deficiency includes the configuration of the malt oligosaccharide, the slipperiness after washing, the slipperiness after drying, and the effect of suppressing itching were confirmed. And all the evaluations of the change in the color tone of the preparation over time were excellent.

(Example 20)

A shampoo having the composition shown in the following (Table 5) was prepared as a detergent composition.

[table 5]

The above composition is filled into an arbitrary container (bottle, pump bottle, bag-shaped container, etc.) to prepare a product.

(Example 21)

A body soap of the composition shown in the following (Table 6) was prepared as a detergent composition.

[Table 6]

(Table 6) Body Cleansing Soap

The above composition is filled into an arbitrary container (bottle, pump bottle, pouch container, etc.) to prepare a product.

The feelings of use, the itching effect and the stability of the products of the above examples 20 and 21 were evaluated in the same manner as in the above Examples 1 to 19. As a result, all of the products of Examples 20 and 21 were excellent in all the evaluations such as the slip-on property at the time of washing, the slipperiness after drying, the effect of suppressing itch, and the change in the color tone of the preparation over time. .

[Table 7]

[Industrial availability]

As described above, the detergent composition of the present invention exhibits the following effects: it does not lower the washing performance as a basic property, and has low irritation, no stickiness during washing, and a good slipperiness after drying, and suppression The effect of itching is excellent, and the preparation does not change color over time. Therefore, the detergent composition of the present invention can be applied to the washing of the hair or skin of a user who is sensitive to skin irritation and use.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection shall be as defined in the scope of the patent application attached.

Claims (5)

A detergent composition comprising (A) an anionic surfactant, (B) a nitrogen-containing cationic polymer compound, (C) an acid, and (D) malto-oligosaccharide, having a pH of 3.0 at 25 ° C ~6.5; and (B) the ratio of the nitrogen-containing cationic polymer compound to (D) malto-oligosaccharide [(B) nitrogen-containing cationic polymer compound / (D) malto-oligosaccharide] is 1/20~ 1/1. The detergent composition according to claim 1, wherein the component (A) is at least one selected from the group consisting of alkyl sulfates and polyoxyethylene alkyl ether sulfates. The detergent composition according to claim 1, wherein the component (D) is at least one selected from the group consisting of maltotetraose and maltopentaose. The detergent composition according to claim 1, wherein the component (B) is at least one selected from the group consisting of cationized cellulose and cationized starch. The detergent composition according to claim 1, wherein the component (C) is at least one selected from the group consisting of citric acid and glycolic acid.