JPH10158691A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent composition which is improved with respect to good feeling on use and detergency, by compounding N-acylamino acid, a polyoxyethylene alkyl ether sulfate, a N-containing nonionic surfactant, an organic acid or a salt thereof, an alcohol and. SOLUTION: This detergent composition comprises (A) 5 to 25wt.% of one or more of N-acylamino acids comprising N-acylamino acids and N-acyl-N- alkylamino acids, (B) 1 to 20wt.% of one or more of polyoxyethylene alkylene ether sulfates, (C) 0.5 to 15wt.% of one or more of N-containing nonionic surfactants, (D) 0.01 to 10wt.% of one or more of organic acids or salts thereof, (E) 0.01 to 15wt.% of one or more of alcohols, and (F) glycyrrhetinic acid, and optionally, one or more of a foaming agent, a thickener, a moisturizing agent, a perfume, a pigment and other additives.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a detergent composition, and more particularly to a detergent composition in which foaming during washing and a feeling of use and finish are improved without impairing the detergency.

[0002]

2. Description of the Related Art Conventionally, anionic surfactants such as alkyl ether sulfates and alkane sulfonates have been used as surfactants for shampoos. However, combing after shampooing is poor and excessive degreasing is involved. Additives such as oil and silicone polymer were blended to improve the finished feeling. However, since the shampoo contains a large amount of an anionic surfactant, the effect of the additive is not sufficient, and rinsing or treatment has conventionally been required after washing the hair. Recently, amino acids have been used as anionic surfactants because of their good feeling of use and mild effects on hair and skin.
-Formulation of an acylated product such as an N-acyl sarcosine salt has been studied and practiced, but has drawbacks such as fineness of foam and reduced foaming power, and N-acyl sarcosine salt and fatty acid dialkanolamide ( JP-A-47-42809), fatty acid-based nonionic surfactant (JP-A-50-2)
2803)), organic carboxylic acids (Japanese Patent Application Laid-Open No. 54-5 / 1979).
No. 0513) has been proposed.

[0003] However, the cleaning agents produced by the above-mentioned methods also have a poor foaming property and an unpleasant feeling of use such as a poor feel during rinsing. In addition, separation, sedimentation, discoloration, etc. occur under low-temperature, high-temperature, and light storage conditions, and there is a problem in storage stability.

[0004] Further, a detergent such as a shampoo having a low viscosity such as a liquid cannot not only make good contact with the scalp and hair when used, but also easily gets into the eyes, which is not preferable in terms of safety. Therefore, a shampoo is usually compounded with a thickener, but the use of N-acyl amino acids has the disadvantage that it is difficult to increase the viscosity.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a foaming property, a feeling upon rinsing, good combability, softness, smoothness, etc. in a cleaning composition such as shampoo. An object of the present invention is to provide a detergent composition having improved washing performance such as feeling of use, viscosity increase, and storage stability.

[0006]

Means for Solving the Problems The present inventors have conducted intensive studies on a detergent composition using N-acylamino acids as an anionic surfactant in order to achieve the above object. It has been found that the object can be achieved by using the compounds in combination with polyoxyalkyl ether sulfates, nitrogen-containing nonionic surfactants, organic acids or salts thereof, alcohols and glycyrrhetinic acids, and completed the present invention. The present invention relates to a detergent composition containing N-acyl amino acids, polyoxyethylene alkyl ether sulfate, N-containing nonionic surfactant, organic acid or salt thereof, alcohols and glycyrrhetinic acids.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below.

(A) N-acyl amino acids are represented by the following formula (1) or (2).

MOOC-CH ₂ -CH ₂ -CH (COOM) -NH-CO-R ¹ (1) (where R ¹ is a saturated or unsaturated linear or branched alkyl having 10 to 18 carbon atoms) represents a group, M represents an alkali metal ion, an alkaline earth metal ion, ammonium ion, alkanolamine ion, a lower fatty acid amine ion or a hydrogen _{atom.) MOOC- (CH 2) n} -N (R 2) -CO- R ³ (2) (where R ² and R ³ each represent a saturated or unsaturated linear or branched alkyl group having 10 to 18 carbon atoms;
Represents an alkali metal ion, an alkaline earth metal ion, an ammonium ion, an alkanolamine ion, a lower fatty acid amine ion or a hydrogen atom, and n is an integer of 1 to 4. ) As the N-acylamino acid represented by the above formula (1),
For example, N-lauroyl glutamic acid, N-myristyl glutamic acid, N-coconut fatty acid acyl glutamic acid, N
-Stearoyl glutamic acid, N-palmitoyl glutamic acid and the like. Examples of the compound forming a salt thereof include a sodium ion, a potassium ion, a monoethanolamine ion, a diethanolamine ion, a triethanolamine ion, and the like, and these can be used in an optically active form or a racemic form.

The N-acyl-N-alkylamino acid represented by the above formula (2) includes, for example, N-lauroyl-N-ethylglycine, N-lauroyl-N-ethylβ-alanine and the like. Examples of the compound that forms are sodium ion, potassium ion, monoethanolamine ion, diethanolamine ion, triethanolamine ion, and the like, and these can be used as an optically active or racemic form.

(B) Polyoxyethylene alkyl ether sulfate is represented by the following formula (3).

R ¹ -O-(-R ² O-) _n SO ₃ M ¹ (3) (wherein, R ¹ is a linear or branched alkyl, alkenyl, or alkylphenyl group having 6 to 18 carbon atoms) And R
² represents an alkylene group having 2 to 4 carbon atoms, M represents an alkali metal or alkaline earth metal ion, and n represents 1 to 10
Indicates an integer. The polyoxyethylene alkyl ether sulfate represented by the above formula (3) includes sodium polyoxyethylene lauryl ether sulfate, sodium polyoxyethylene cetyl ether sulfate, sodium polyoxyethylene stearyl ether sulfate, and the like. Is not particularly limited as long as it ranges from 1 to 10.

(C) As the nitrogen-containing nonionic surfactant, pyroglutamic acid derivatives such as pyroglutamic acid isostearic acid hydrogenated castor oil, pyroglutamic acid isostearic acid polyoxyethylene hydrogenated castor oil, and glyceryl pyroglutamic acid isostearic acid diester are preferably used. However, fatty acid alkanolamides such as lauroyldiethanolamide may be used.

(D) The organic acid or a salt thereof is not particularly limited, but a carboxylic acid or a salt thereof is preferable. Examples of carboxylic acids include formic acid, lactic acid, acetic acid, pyrrolidone carboxylic acid, stearic acid, citric acid, malic acid, tartaric acid, succinic acid, maleic acid, fumaric acid, salicylic acid, phthalic acid, ethylenediaminetetraacetic acid and the like. Examples of the salts include alkali metal salts, alkaline earth metal salts, and ammonium salts of the above organic acids.

(E) The alcohols are not particularly limited, but liquid alcohols such as ethanol, isopropanol, isostearyl alcohol, jojoba alcohol, 1,3-butylene glycol, propylene glycol, ethylene glycol and glycerin are preferred. Used.

(F) The glycyrrhetinic acids are not particularly restricted but include glycyrrhizic acid, β-glycyrrhizic acid, dipotassium glycyrrhizinate, monoammonium glycyrrhizinate, glycyrrhetinyl stearate, glycyrrhetinyl glycyrrhetinate and the like.

In the present invention, one or more of the salts of the amino acids represented by the above formulas (1) and (2) are used as the N-acylamino acids (A) in an amount of 5 to 25% of the total composition.
% (Weight%, the same applies hereinafter), preferably 5 to 20%, 1 to 20%, preferably 1 to 15% of one or more of polyoxyethylene alkyl ether sulfate (B), nitrogen-containing non-ion 0.5 to 15%, preferably 0.5 to 10% of one or more of the surfactants (C) and 0.01 or more of one or more of the organic acids or salts thereof (D). -10%,
One or two or more alcohols (E) in a range of 0.01 to 1
When 5%, preferably 0.01 to 10% is blended, appropriate viscosity is imparted, storage stability is excellent, and hair is moisturized,
It is soft after bangs, improves combability, improves finish, improves storage stability, and imparts suitable viscosity as a shampoo.

In the present invention, the following can be added as other additives. Thickening agents such as polyethylene glycol fatty acid esters, polyoxyethylene hydrogenated castor oils and other foaming agents, methylcellulose, ethylcellulose, propylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, cationized cellulose, polyvinylpyrrolidones, xanthan gum, dextrins Emulsifiers, moisturizers, emulsifiers such as ethylene glycol stearate, ethylene glycol distearate, cetostearyl alcohol, titanium mica, collagen hydrolysates, phospholipids, squalane, lanolin derivatives, silicones and their derivatives, cationic modification Conditioning agents such as cellulose ether derivatives,
Ethylenediaminetetraacetic acid derivatives, sequestering agents such as tripolyphosphoric acid, ultraviolet absorbers such as benzophenone derivatives and benzatriazole derivatives, antioxidants such as BHT and α-tocopherol, L-menthol, peppermint oil, peppermint oil, camphor, thymol, Tonics such as pepper tincture and nonylate vanillylamide, vitamins such as tocopherol acetate, zinc pyrithione, pyrocton olamine, sulfur, selenium diversion selenium, bactericides such as triclosan, trichlorocarbanilide, hinokitiol, paraoxybenzoates, etc. Preservatives, other hydrotopes, animal and plant extracts, flavors, pigments,
PH adjusters such as phosphoric acid and salts thereof.

[0019]

As described above, the cleaning composition of the present invention is excellent in foaming power, finished feeling such as combability and softness, viscosity increase, storage stability and the like.

[0020]

EXAMPLES The present invention will be described in detail with reference to Examples and Test Examples below, but the present invention is not limited to the following Examples.

Examples and Test Examples The components shown in Tables 1 and 2 below were mixed to prepare a detergent composition. The following items were evaluated for the compositions of the examples.

(1) Evaluation of Smoothness Kushidori was evaluated for the effect of suppressing the squeaky feeling after the last hair. That is, the hair fixed on a slide glass was fixed at an appropriate position with a clamp or the like, immersed in a cleaning composition (shampoo), and immersed for 30 seconds (washing). After washing, the hair was stirred with 500 ml of warm water (35 to 40 ° C.) for 30 seconds to rinse the hair. After repeating the above process twice,
The dynamic friction coefficient was measured with time using a friction tester (manufactured by KES-SE Kato Tech Co., Ltd.) in a constant temperature and humidity chamber (25 ° C., 40% RH), and compared with a commercially available product (shampoo). As the coefficient of kinetic friction decreases, the smoothness of the hair increases. The evaluation criteria are shown below. ：: superior to commercially available products △: equivalent to × ×: 劣 inferior

(2) Evaluation of combing A panel of 20 males and 15 females washed hair with a detergent composition, and after drying the hair, a commercial product (shampoo) was used as a control. The sensory evaluation was performed according to the criteria shown below. ：: superior to commercially available products △: equivalent to × ×: 劣 inferior

(3) Evaluation of water holding power of hair After the hair was washed with a detergent composition and dried, it was stored in a thermo-hygrostat (20 ° C., 50% RH), and after 24 hours, the weight of the hair was measured. Moisture retention was evaluated based on the reduction in hair weight due to storage. The smaller the weight loss, the higher the water retention ability. The evaluation was performed using a commercially available product (shampoo) as a control. The evaluation criteria are shown below. ：: superior to commercially available products △: equivalent to × ×: 劣 inferior (4) Evaluation of foaming power of cleaning agent It was performed by the Ross Miles method and evaluated by the height of bubbles. The evaluation was compared with a commercial product (shampoo). The evaluation criteria are shown below. ：: superior to commercially available products △: equivalent to × ×: 劣 inferior

(5) Evaluation of Viscosity of Detergent The method was based on the standard for cosmetic raw materials. The evaluation criteria are shown below. ：: 200 centipoise or more Δ: 100 to 200 centipoise ×: less than 100 centipoise

(6) Storage Stability of Detergent A detergent composition was prepared, placed in a colorless and transparent glass container, stored at 5 ° C. and 40 ° C. for 3 months, and evaluated visually. The evaluation criteria are shown below. ：: stable without any separation, sedimentation or discoloration. Δ: change in one or more of separation, sedimentation and discoloration, but to a lesser degree ×: 〃 change in separation, sedimentation and discoloration.

(7) Skin irritation of the detergent (primary skin irritation test) 0.3 ml of the detergent was applied to a bandage for a patch test, and the back was blocked by the back of a Japanese white rabbit (10-week-old) with a fluffy back. Affixed. 24 hours later, the patch test bandage was removed, and 24, 48, 72 hours and 7 days after application, Drai
Skin irritation was evaluated according to the ze criteria. The evaluation was performed using a commercial product (shampoo) as a control in terms of the primary stimulation index. The primary stimulus index becomes more irritating depending on the size. The evaluation criteria are shown below. ：: Irritability is lower than that of a commercially available product. △: Same as that of 〃. ×: Stronger than 〃.

(8) Comprehensive feeling of use A panel of 20 men and 15 women wash their hair with the detergent composition. Sensory evaluation was performed according to the criteria shown. ：: superior to commercially available products △: equivalent to × ×: 劣 inferior

The results are shown in Tables 1 and 2 below. N-acyl amino acids, polyoxyethylene alkyl ether sulfates, nitrogen-containing nonionic surfactants, organic acids, alcohols, glycyrrhetinic acid, even one of the detergents removes the feeling of use, foaming, There was a problem in storage stability (Comparative Examples 1 to 5). On the other hand, the detergent containing all of the above was able to improve the usability such as combability, smoothness, and flexibility without impairing the storage stability and foaming power (Examples 1 to 5).
4).

[0030]

[Table 1]

[0031]

[Table 2]

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeo Tanaka 3-24-1, Takada, Toshima-ku, Tokyo Inside Taisho Yaku Co., Ltd.

Claims (1)

[Claims] 1. A cleaning composition comprising an N-acyl amino acid, a polyoxyethylene alkyl ether sulfate, a nitrogen-containing nonionic surfactant, an organic acid or a salt thereof, an alcohol, and glycyrrhetinic acid.