JP6900247B2 - Cleaning composition - Google Patents

Description

The present invention relates to a cleaning composition.

In order to achieve healthy and beautiful skin, it goes without saying that a cleaning agent that is less irritating and can properly clean dirt should be selected, but for cleaning agents such as facial cleansers, it is easy to discharge from the container. Ease of use, foaming power, and abundant foaming are also required.

Conventionally, as anionic surfactants to be blended in cleaning agents, cleaning agents containing higher fatty acid salts, alkyl sulfates, and alkyl ether sulfates, which are expected to have high cleaning power, as main components have been provided, but they are irritating to the skin. Gender was an issue.

It is known to select an amino acid-based surfactant as a method for reducing the irritation of the anionic surfactant to the skin. However, while amino acid-based surfactants are less irritating, they have the problems of poor foaming power, foam stability, foam volume, coarse foam texture, and low viscosity when used as cosmetics. there were.

In order to solve these problems, Patent Document 1 discloses a composition containing a fatty acid alkali metal salt, a fatty acid basic amino acid salt, and a cationized polymer. Further, Patent Document 2 discloses a composition in which an N-acylaspartic acid-based surfactant, a cationized polymer, and various surfactants are blended.

On the other hand, Patent Document 3 discloses a composition containing an amino acid-based surfactant and a crosslinked product in which fatty acid soap and acyl-modified starch are crosslinked with each other.

Certainly, according to the cleaning agents disclosed in Patent Documents 1 to 3, a cleaning agent containing an amino acid-based surfactant can be obtained. However, the detergent composition disclosed in Patent Document 1 and Patent Document 2 has a problem that it is not easy to use due to stringiness when the preparation is discharged by blending the cationized polymer. Further, according to the technique disclosed in Patent Document 3, although a composition having an appropriate viscosity can be obtained, there is a problem that the composition lacks stability with time. On the other hand, the cleaning agents described in Patent Document 1 and Patent Document 3 contain fatty acid soap, and it cannot be said that the irritation to the skin is sufficiently suppressed.

Japanese Unexamined Patent Publication No. 2008-179583 Japanese Unexamined Patent Publication No. 2005-307019 Japanese Unexamined Patent Publication No. 2005-23049

Therefore, the present invention is for creamy cleaning, which has good foaming power, foam elasticity, foam stability, foam texture, detergency, and usability without blending fatty acid soap, and is excellent in stability over time of the composition. It is an object of the present invention to provide a composition.

As a result of diligent research in view of the above-mentioned prior art, the present inventors preferably contain an N-acylamino acid salt, an amphoteric surfactant, a nonionic surfactant, and a cationized polymer, and further preferably a water-soluble polymer. By blending, the above object was achieved.

That is, according to the present invention, the following creamy cleaning compositions are provided.
(1) A creamy cleaning composition containing the following components (A) to (D).
(A) N-acylamino acid salt (B) amphoteric surfactant (C) nonionic surfactant (D) cationized polymer (2) (A) N-acylamino acid salt consists of hydrophilic amino acids ( The creamy cleaning composition according to 1).
(3) The creamy cleaning composition according to (1) to (2), wherein the amphoteric surfactant is a carboxylate type and has an acyl group having 12 carbon atoms.
(4) At least one of (1) to (3) in which the compounding ratio (B) / (A) of (B) amphoteric surfactant to (A) N-acylamino acid salt is 0.3 to 0.6. The creamy cleaning composition according to.
(5) At least of (1) to (4) in which the compounding ratio (C) / (A) of the (C) nonionic surfactant to the (A) N-acyl amino acid salt is 0.05 to 0.4. The creamy cleaning composition according to one.
(6) (D) The cationized polymer is one or two selected from dimethyldiallylammonium chloride / acrylamide copolymer and acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer (1) to (5). ) The creamy cleaning composition according to at least one.
(7) The creamy cleaning composition according to at least one of (1) to (6), which further contains (E) a water-soluble polymer.

According to the present invention, a creamy washing having good foaming power, foam elasticity, foam stability, foam texture, detergency, and usability without blending fatty acid soap, and excellent temporal stability of the composition. Compositions for use can be provided.

Hereinafter, the details of the creamy cleaning composition of the present invention will be described.

The component (A) used in the creamy cleaning composition of the present invention is an N-acylamino acid salt. The amino acids that make up the N-acyl amino acid salt are hydrophilic amino acids. For example, glycine, serine, threonine, aspartic acid, glutamic acid, cysteine, lysine, arginine, histidine and the like can be mentioned, but glycine and glutamic acid can be preferably selected. Examples of the salt constituting the N-acylamino acid salt include alkali metal salts such as sodium salt and potassium salt, lower alkanolamine salt and the like, and sodium salt and potassium salt can be preferably selected.

As the acyl group constituting the N-acyl amino acid salt, a saturated fatty acid having 8 to 22 carbon atoms can be selected.

Specifically, as such N-acylamino acid salt, N-palm oil fatty acid acylglycine potassium, N-palm oil fatty acid acylglycine sodium, N-palm kernel oil fatty acid acylglycine ammonium, N-palm oil fatty acid acylglutamate potassium , N-Palm oil fatty acid acylglutamate triethanolamine, N-lauroyl glutamate sodium, N-lauroyl glutamate triethanolamine, N-lauroylalanine sodium, N-stearoylalanine sodium, N-myristoyl aspartate triethanolamine, etc. .. In the creamy cleaning composition of the present invention, one of these components (A) may be used alone, or two or more thereof may be used in combination as appropriate.

The blending amount of the N-acylamino acid salt used in the present invention is preferably 10.5-11.4% by mass from the viewpoint of foaming speed and foam stability.

The component (B) used in the creamy cleaning composition of the present invention is an amphoteric surfactant. It is a carboxylic acid type amphoteric tenside having 12 carbon atoms in the acyl group constituting the amphoteric tenside. One of these components (B) may be used alone, or two or more thereof may be used in combination as appropriate.

The blending amount of the amphoteric surfactant used in the present invention is preferably 3.5 to 5.4% by mass from the viewpoint of the speed of foaming and the stability of foam.

The compounding ratio (B) / (A) of the (B) amphoteric surfactant to the (A) N-acylamino acid salt used in the present invention is 0.3 to 0.3 to maintain the speed of foaming and the elasticity of the foam. It is preferably 0.6.

Specific examples of such an amphoteric surfactant include N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium, lauric acid amide propyl betaine and the like.

The component (C) used in the creamy cleaning composition of the present invention is a nonionic surfactant, and sorbitan fatty acid ester and ethylene oxide condensate of sorbitan fatty acid ester are preferable. One of these components (C) may be used alone, or two or more thereof may be used in combination as appropriate.

Specific examples of the sorbitan fatty acid ester include sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, sorbitan monoisostearate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquistearate, and sesquiisostearate. Examples thereof include sorbitan acid, sorbitan sesquioleate, and sorbitan coconut oil fatty acid.

Specific examples of the ethylene oxide condensate of the sorbitan fatty acid ester include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, and polyoxy monoisostearate. Examples thereof include ethylene sorbitan, monococonut oil fatty acid polyoxyethylene sorbitan, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate. The number of moles of ethylene oxide added is not particularly limited, but is preferably 2 to 100.

The blending amount of the nonionic surfactant used in the present invention is preferably 1.2 to 2.4% by mass from the viewpoint of foaming speed and foam stability.

The compounding ratio (C) / (A) of the (C) nonionic surfactant to the (A) N-acylamino acid salt used in the present invention is set to 0. It is preferably 05 to 0.4, and more preferably 0.11 to 0.23.

The component (D) used in the creamy cleaning composition of the present invention is a cationized polymer. Specific examples of the cationized polymer include dimethyldiallylammonium chloride / acrylamide copolymer and acrylamide / acrylic acid / dimethyldialylammonium chloride copolymer from the viewpoint of not inhibiting the speed of foaming.

The blending amount of the cationized polymer (D) used in the creamy cleaning composition of the present invention is 0.01 to 0.1% by mass from the viewpoint of maintaining the elasticity of foam while suppressing stringing. It is preferable to have.

The component (E) used in the creamy cleaning composition of the present invention is a water-soluble polymer. Generally, when dissolved in water, it forms a hydrogel containing a large amount of water around the molecule, which significantly increases the viscosity. For example, alginic acid, carrageenan, agar, guar gum, quince seed, konjak mannan, tamarind gum, tara gum, dextrin, starch, locust bean gum, arabic gum, gutti gum, karaya gum, tragacanth gum, arabinogalactan, malmero, gelatin, chitosan, hyaluronic acid. , Cardran, xanthan gum, gellan gum, cyclodextrin, starch phosphate ester, sodium starch glucolate, cationized guar gum, carboxymethyl / hydroxypropylated guar gum, hydroxypropylated guar gum and the like.

In the present invention, xanthan gum, hydroxyethyl cellulose, and hydroxypropyl starch phosphoric acid are preferable as the water-soluble polymer (E) because its viscosity is not easily affected by pH, salt, etc., and the amount of xanthan gum blended is 0.3 to 3. The amount of hydroxyethyl cellulose to be blended is more preferably 0.1 to 5% by mass. Of these, it is most preferable to add hydroxypropyl starch phosphoric acid in an amount of 2.5 to 5% by mass.

The creamy cleaning composition of the present invention includes optional ingredients that are blended in ordinary cosmetics as long as the effects of the present invention are not impaired, that is, emulsifying aids, oils, alcohols, powders, film-forming agents, and the like. Surfactants, resins, UV absorbers, moisturizers, whitening agents, preservatives, antibacterial agents, antioxidants, pH adjusters, chelating agents, extract extracts, fragrances and the like can be blended.

Examples will be given below to give a more detailed description of the present invention, but it goes without saying that the present invention is not limited to these examples. The blending amounts are all mass%.

Examples 1-7, Comparative Examples 1-8
Each creamy cleaning composition was prepared by using each component in the blending ratios shown in Tables 1 and 2 below and mixing them uniformly. The foaming speed, foam elasticity, foam stability, foam texture, detergency, usability, and composition stability (40 ° C., 3 months) of each cream-like cleaning composition were confirmed. The results are shown in Tables 1 and 2.

(1) Evaluation of foaming speed We asked 10 expert evaluators to actually use the creamy cleaning compositions shown in Tables 1 and 2, and the foaming speed was determined in the following three stages based on the following criteria. Sensory evaluation was performed using the evaluation criteria, and the average value of the scores was calculated. Based on the calculated average value, the speed of foaming was evaluated according to the following criteria.
<3-level rating criteria>
Rating 3: Very fast foaming.
Rating 2: Fast bubbling.
Rating 1: Slow foaming.
<Evaluation criteria for foaming speed>
⊚: The average score of 10 professional evaluators is 2.5 points or more.
◯: The average score of 10 professional evaluators is 1.5 points or more and less than 2.5 points.
X: The average score of 10 professional evaluators is less than 1.5 points.

(2) Evaluation of foam elasticity We asked 10 expert evaluators to actually use the creamy cleaning compositions shown in Tables 1 and 2, and based on the following criteria, the following three-level evaluation criteria for foam elasticity. The sensory evaluation was performed with, and the average value of the scores was calculated. Based on the calculated average value, the elasticity of the foam was evaluated according to the following criteria.
<3-level rating criteria>
Rating 3: The foam has good elasticity.
Rating 2: The foam is elastic.
Rating 1: The foam is not elastic.
<Evaluation criteria for foam elasticity>
⊚: The average score of 10 professional evaluators is 2.5 points or more.
◯: The average score of 10 professional evaluators is 1.5 points or more and less than 2.5 points.
X: The average score of 10 professional evaluators is less than 1.5 points.

(3) Evaluation of foam stability We asked 10 expert evaluators to actually use the creamy cleaning compositions shown in Tables 1 and 2, and the foam stability was evaluated in the following three stages based on the following criteria. Sensory evaluation was performed using the evaluation criteria, and the average value of the scores was calculated. Based on the calculated average value, the stability of the foam was evaluated according to the following criteria.
<3-level rating criteria>
Rating 3: Good foam stability.
Rating 2: Foam stability.
Rating 1: Bubbles tend to collapse.
<Evaluation criteria for foam stability>
⊚: The average score of 10 professional evaluators is 2.5 points or more.
◯: The average score of 10 professional evaluators is 1.5 points or more and less than 2.5 points.
X: The average score of 10 professional evaluators is less than 1.5 points.

(4) Evaluation of foam texture We asked 10 expert evaluators to actually use the creamy cleaning compositions shown in Tables 1 and 2, and based on the following criteria, the following three-level evaluation criteria for foam texture. The sensory evaluation was performed with, and the average value of the scores was calculated. Based on the calculated average value, the texture of the foam was evaluated according to the following criteria.
<3-level rating criteria>
Rating 3: Very fine foam texture.
Rating 2: Fine foam.
Rating 1: The foam is coarse.
<Evaluation criteria for foam stability>
⊚: The average score of 10 professional evaluators is 2.5 points or more.
◯: The average score of 10 professional evaluators is 1.5 points or more and less than 2.5 points.
X: The average score of 10 professional evaluators is less than 1.5 points.

(5) Evaluation of detergency We asked 10 professional evaluators to actually use the creamy cleaning compositions shown in Tables 1 and 2, and sensory the detergency according to the following three-grade evaluation criteria based on the following criteria. Evaluation was performed and the average value of the scores was calculated. Based on the calculated average value, the detergency was evaluated according to the following criteria.
<3-level rating criteria>
Rating 3: Has excellent detergency.
Rating 2: Sufficient detergency.
Rating 1: Poor detergency.
<Evaluation criteria for detergency>
⊚: The average score of 10 professional evaluators is 2.5 points or more.
◯: The average score of 10 professional evaluators is 1.5 points or more and less than 2.5 points.
X: The average score of 10 professional evaluators is less than 1.5 points.

(6) Evaluation of Usability Ten expert evaluators were asked to actually use the cream-like cleaning compositions shown in Tables 1 and 2, and the presence or absence of stringing when discharged from the container was evaluated.
<Usability evaluation criteria>
⊚: There was no stringing when discharging from the container.
X: There was stringing when discharging from the container.

(7) Evaluation of High Temperature Stability The creamy cleaning compositions shown in Tables 1 and 2 were placed in a colorless and transparent container and stored at 40 ° C. for 3 months, and the state of separation and discoloration was visually evaluated.
<Evaluation criteria for high temperature stability>
⊚: No separation or discoloration is observed.
◯: Slight separation and discoloration are observed.
×: Separation and discoloration are clearly observed.

As is clear from Tables 1 and 2, the creamy cleaning compositions of Examples 1 to 7 of the present invention all have foaming power, foam elasticity, and foam as compared with the compositions of Comparative Examples 1 to 8. It can be seen that the stability, foam texture, detergency, and usability of the composition are good, and the composition is excellent in stability over time.

(Prescription example)

According to the present invention, a creamy washing having good foaming power, foam elasticity, foam stability, foam texture, detergency, usability, and excellent temporal stability of the composition without blending fatty acid soap. Compositions for use can be provided.

Claims (3)

A creamy cleaning composition containing the following components (A) to (D) .
(A) N-acylamino acid salt (B) Sodium lauroamphoacetate (C) Ethylene oxide condensate of sorbitan fatty acid ester (D) Dimethyldialylammonium chloride / acrylamide copolymer and acrylamide / acrylic acid / dimethyldialylammonium chloride copolymer
Here, the compounding ratio (B) / (A) of (B) sodium lauroamphoacetate to (A) N-acylamino acid salt is 0.3 to 0.6;
The compounding ratio (C) / (A) of the ethylene oxide condensate of (C) sorbitan fatty acid ester to (A) N-acylamino acid salt is 0.05 to 0.4; and
The blending amount of the component (D) is 0.01 to 0.1% by mass.
The creamy cleaning composition. (A) The creamy cleaning composition according to claim 1, wherein the N-acyl amino acid salt comprises a hydrophilic amino acid. The creamy cleaning composition according to claim 1 or 2 , further comprising (E) a water-soluble polymer.