JP2003055690A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent detergent composition which contains an N-acylamino acid salt at a high concentration, excels in usability and a feeling of use and, in addition, excels in external appearance. SOLUTION: The detergent composition comprises (A) an N-acyamino acid salt, (B) a cellulose based natural polymer derivative, and (C) at least one nonionic surface active agent to be selected from a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene sorbit fatty acid ester, a polyoxyethylene castor oil, a polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether, and a polyglycerin fatty acid ester.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more specifically, it contains an N-acyl amino acid salt in a high concentration and has an appropriate viscosity, so that it has excellent usability and usability, and further has an external appearance. The present invention relates to an excellent transparent cleaning composition.

[0002]

BACKGROUND OF THE INVENTION In a detergent composition, in order to improve its usability and usability, various viscosity increasing techniques are used to impart an appropriate viscosity to the detergent composition. There is. As a conventional main thickening technique, a method of incorporating an inorganic salt such as sodium chloride into a detergent composition to aggregate micelles of the detergent composition, an anionic surfactant, and a fatty acid alkanolamide and / or Alternatively, a method of blending with an amphoteric surfactant and utilizing electrical interaction between molecules of the surfactant, a method of blending a thickener such as a water-soluble polymer, and the like are known.

On the other hand, N-acyl amino acid salts have a mild action on the skin and hair, are highly safe, are excellent in biodegradability, and are friendly to the global environment. Therefore, they are widely used in various detergent compositions. There is.

However, a detergent composition containing a high concentration of N-acyl amino acid salt, even if it contains a thickener,
It is difficult to obtain a proper viscosity, and when a transparent preparation is prepared for the purpose of differentiating the appearance, turbidity may occur in a short period of time in proportion to the compounding amount of the N-acyl amino acid salt. There was a problem such as a decrease in viscosity.

Therefore, it has been desired to develop a detergent composition containing an N-acyl amino acid salt which is stable in transparency and viscosity over a long period of time and is excellent in usability and usability.

[0006]

Means for Solving the Problems In view of the above circumstances, the inventors of the present invention have conducted diligent research, and as a result, in a detergent composition containing (A) an N-acyl amino acid salt, (B) a cellulosic natural polymer derivative. And (C) polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene monofatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether,
A detergent containing an N-acyl amino acid salt, which was difficult to thicken by blending with one or more nonionic surfactants selected from the group consisting of polyglycerin fatty acid esters The present invention has been completed by finding that it is possible to obtain a detergent composition which can be adjusted in viscosity arbitrarily, has excellent usability and usability, and has stable transparency and viscosity over a long period of time.

That is, claim 1 of the present invention is (A) N-
Acyl amino acid salt, (B) cellulose-based natural polymer derivative, and (C) ethylene oxide having a molar addition number of 10
To 30 polyoxyethylene sorbitan fatty acid ester, ethylene oxide addition mole number 30 to 60 polyoxyethylene sorbit fatty acid ester, ethylene oxide addition mole number 10 to 60 polyoxyethylene monofatty acid ester, ethylene oxide addition Of polyoxyethylene castor oil having a number of moles of 20 to 60, polyoxyethylene hydrogenated castor oil having a number of moles of addition of ethylene oxide of 20 to 100, polyoxyethylene alkyl ether having a number of moles of addition of ethylene oxide of 20 to 40, and glycerin A detergent composition comprising one or more nonionic surfactants selected from the group consisting of polyglycerin fatty acid esters having a degree of polymerization of 6 to 10.

A second aspect of the present invention is the detergent composition according to the first aspect, which further comprises (D) a polyhydric alcohol.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below.

The (A) N-acyl amino acid salt used in the present invention is not particularly limited as long as it is usually used in cosmetics. For example, the following general formula (1)

[Chemical 1] (In the formula, R ₁ is an alkyl group or an alkenyl group having 7 to 21 carbon atoms, and M ₁ and M ₂ are hydrogen atoms, or alkali metals such as potassium and sodium, ammonium or monoethanolamine, diethanolamine, triethanolamine. , N-acylglutamate represented by the following general formula (2), wherein C ₁ is a cation derived from an alkanolamine such as isopropanolamine, provided that M ₁ and M ₂ are not hydrogen at the same time.

[Chemical 2] (In the formula, R ₂ is an alkyl group or alkenyl group having 7 to 21 carbon atoms, M ₃ and M ₄ are hydrogen atoms, or an alkali metal such as potassium and sodium, ammonium or monoethanolamine, diethanolamine, triethanolamine. , And cations derived from alkanolamines such as isopropanolamine, provided that M ₃ and M ₄ are not hydrogen at the same time.) And the like.

The (A) N-acyl amino acid salt used in the present invention is preferably an alkanolamine salt. Particularly preferred is a triethanolamine salt, which is particularly excellent in transparent stability of appearance.

The (A) N-acyl amino acid salt used in the present invention can be used alone or in combination of two or more kinds, and the blending amount thereof is 1 to 85 based on the total amount of the detergent composition. Mass% (hereinafter, simply expressed as%) is preferable,
It is particularly preferably 5 to 80%. If the blending amount is less than 1%, the detergency and foamability may be insufficient, and if the blending amount exceeds 85%, the corresponding increase in effect may not be obtained, and the usability is poor. May be.

The cellulose-based natural polymer derivative (B) used in the present invention is not particularly limited as long as it is usually blended for the purpose of thickening in cosmetics, and examples thereof include methyl cellulose, sodium carboxymethyl cellulose, and hydroxyethyl cellulose. , Hydroxypropylmethyl cellulose and the like. Among them, hydroxyethyl cellulose and hydroxypropyl methyl cellulose are particularly preferable, because the viscosity can be easily adjusted with a small amount, the transparency stability of the appearance and the feeling of use are excellent.

The (B) cellulose-based natural polymer derivative used in the present invention can be used alone or in combination of two or more kinds, and the compounding amount thereof is 0 based on the total amount of the detergent composition. 0.01-3% is preferable, and 0.05-2% is particularly preferable. If the content is less than 0.01%, sufficient viscosity may not be obtained, and if it exceeds 3%, fluidity may be lost and usability and usability may be significantly deteriorated.

The non-ionic surfactant (C) used in the present invention has an addition mole number of ethylene oxide of 10 to 30.
(Preferably 20) polyoxyethylene sorbitan fatty acid ester, ethylene oxide addition mole number 30
To 60 (preferably 40) polyoxyethylene sorbite fatty acid ester, ethylene oxide addition mole number 10 to 60 (preferably 25) polyoxyethylene monofatty acid ester, ethylene oxide addition mole number 20 to 60 (preferably Is 40) polyoxyethylene castor oil, the number of moles of ethylene oxide added is 20 to 1
00 (preferably 60) polyoxyethylene hydrogenated castor oil, the addition mole number of ethylene oxide is 20-40
One or more selected from the group consisting of polyoxyethylene alkyl ether (preferably 30) and polyglycerin fatty acid ester having a polymerization degree of glycerin of 6 to 10. The carbon number of the fatty acid portion in these nonionic surfactants (excluding polyoxyethylene alkyl ether having an addition mole number of ethylene oxide of 6 to 10) is 12 to 18, which may be a saturated fatty acid or an unsaturated fatty acid, Also, straight chain fatty acids or branched fatty acids may be used.
The hydrocarbon group of the polyoxyethylene alkyl ether having 6 to 10 moles of added ethylene oxide may have 12 to 18 carbon atoms and may be saturated or unsaturated, and may be linear or branched. Among these nonionic surfactants, polyoxyethylene (20) sorbitan monolaurate,
The monococonut oil fatty acid polyoxyethylene (20) sorbitan, the polyoxyethylene (20) sorbitan monooleate, and the polyoxyethylene (60) hydrogenated castor oil are particularly excellent in transparent stability of appearance.

The non-ionic surfactant (C) used in the present invention may be used alone or in combination of two or more, and the compounding amount thereof is 0 based on the total amount of the detergent composition. 0.05 to 5% is preferable, and 0.1 is particularly preferable.
3%. When the content is out of the range of 0.05 to 5%, the transparency stability of the appearance may be deteriorated.

The polyhydric alcohol (D) used in the present invention is the solubility, feel of use, and feel of the natural cellulosic polymer derivative.
And, it is blended for the purpose of improving antiseptic property, and is not particularly limited as long as it is usually used in cosmetics. For example, 1,3-butylene glycol, propylene glycol, dipropylene glycol, glycerin, polyethylene. Glycol, isoprene glycol, sorbitol, hexylene glycol, polyoxyethylene (10) methyl glucoside, polyoxyethylene (2
0) Methyl glucoside etc. are mentioned.

The polyhydric alcohol (D) used in the present invention may be used alone or in combination of two or more, and the compounding amount thereof is 3 based on the total amount of the detergent composition.
-15%, particularly preferably 5-10%. If the blending amount is less than 3%, improvement of antiseptic property may be insufficient, and if the blending amount exceeds 15%, foam quality and usability may deteriorate.

The viscosity of the detergent composition of the present invention can be adjusted arbitrarily, but it is preferably 100 to 10,000.
mPa · s, particularly preferably 500 to 8000 m
Adjust to Pa · s.

In addition to the above-mentioned essential components, the detergent composition of the present invention may contain various optional components used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc. within the range to achieve the object of the present invention. It can be blended appropriately. For example, general cleaning agent, p
Examples include H regulators, bactericides, antiseptics, antiphlogistics, pigments, and fragrances.

The form of the detergent composition of the present invention is not particularly limited. For example, a detergent composition for hair such as shampoo, hand soap, body shampoo, face wash, face wash for makeup remover, etc. Applied to detergent compositions.

[0022]

EXAMPLES The present invention will be described in more detail below with reference to examples.

Example 1 and Comparative Examples 1 and 2 A face wash having the composition shown in Table 1 was prepared by the following production method. [Manufacturing Method] (1) Set a broper stirrer in a tank of pure water and dissolve disodium edetate while stirring. Or later,
Stirring continues until the end of production. (2) Methylparaben is added to dipropylene glycol and dissolved at 50 ° C or lower, and then cooled to 30 ° C.
A thickener is added to this solution, and the solution is quickly and uniformly dispersed until lumps disappear. (3) Immediately add the solution of (2) to the pure water tank under stirring. (4) Dissolve and stir for [30 minutes]. (5) Next, N-acyl amino acid salt and nonionic surfactant are sequentially added. (6) Dissolve and stir for [30 minutes] to complete the production.

[0024]

[Table 1]

<Transparent Stability Test> Example 1 and Comparative Example 1
Each of the facial cleansers Nos. 2 to 50 was placed in a glass bottle of 50 mL, left for 4 weeks in a thermostat at a temperature of 45 ° C., visually observed, and evaluated according to the following evaluation criteria. Evaluation Criteria Evaluation symbol ------------------------ Transparent: ○ Has turbidity: △ Separates: ×

<Evaluation test for usability and usability> Panelist 20
After continuously using the facial cleansers of Example 1 and Comparative Examples 1 and 2 for one week, they are easy to use (handling), lathering, rinsing (no slippery feeling after washing), and refreshing feeling ( The quality of "the feeling of non-greasiness after washing the face" was judged and the questionnaire was answered, and the evaluation was judged as follows.

[0027] Evaluation standard Evaluation symbol −−−−−−−−−−−−−−−−−−−−−−− When more than 18 people answered that they are good ◎ 14 to 17 people answered that they are good ○ If the number of people who answered good is 8 to 13 △ Less than 7 people say good ×

The evaluation results are shown below.

As is clear from the above results, the facial cleanser of the present invention has excellent transparency stability in appearance. As for usability, it is easy to apply to the site to be used, foaming is creamy, and rinsing is easy. The feeling after washing the face is not tight, there is no sticky feeling, it is moderately moist, and it is also excellent in usability.

Example 2 A face wash having the following composition was prepared by the above manufacturing method.

[0031] Blending ingredients Blending amount (mass%) Disodium edetate 0.1 Methylparaben 0.1 Propylene glycol 5.0 Hydroxypropyl methylcellulose 0.3 N-coconut oil fatty acid acyl-L-glutamic acid                 Triethanolamine (30% aqueous solution) 10.0   N-lauroyl-L-aspartic acid                 Triethanolamine (30% aqueous solution) 10.0 Polyoxyethylene (60) hydrogenated castor oil 0.5 Pure water balance −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−   100.0 in total

Example 3 A hand soap having the following composition was prepared by the above manufacturing method.

[0033] Blending ingredients Blending amount (mass%) Disodium edetate 0.1 Methylparaben 0.1 Dipropylene glycol 5.0   Polyethylene glycol 200 5.0 Hydroxypropyl methylcellulose 0.5 N-coconut oil fatty acid acyl-L-aspartic acid                   Triethanolamine (30% aqueous solution) 50.0 Polyoxyethylene (15) oleyl ether 0.8 Pure water balance −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−   100.0 in total

Example 4 A body shampoo having the following composition was prepared by the above production method.

[0035] Blending ingredients Blending amount (mass%) Disodium edetate 0.1 Methylparaben 0.1 1,3-butylene glycol 10.0 Hydroxyethyl cellulose 0.7 N-coconut oil fatty acid acyl-L-glutamic acid                   Triethanolamine (30% aqueous solution) 20.0   N-coconut oil fatty acid acyl-L-aspartic acid                   Triethanolamine (30% aqueous solution) 30.0 Polyoxyethylene (20) sorbitan monooleate 1.5 Pure water balance −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−   100.0 in total

Example 5 A shampoo having the following composition was prepared by the above manufacturing method.

[0037] Blending ingredients Blending amount (mass%) Disodium edetate 0.1 Methylparaben 0.1 Dipropylene glycol 10.0 Hydroxypropyl methylcellulose 1.0 N-lauroyl-L-glutamic acid               Triethanolamine (30% aqueous solution) 70.0 Polyoxyethylene (20) sorbitan monolaurate 1.0 Pure water balance −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−   100.0 in total

All the cleaning compositions of Examples 2 to 5 had excellent transparency stability, feeling of use and usability.

When any of the detergent compositions of the Examples is used, the skin is free from inflammation and other symptoms considered to be side effects, and the detergent composition according to the present invention is excellent in safety. It was clear.

[0040]

As described above, it is clear that the detergent composition of the present invention is excellent in transparency stability, usability and usability.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C11D 3/20 C11D 3/20 3/37 3/37 F term (reference) 4C083 AC111 AC122 AC181 AC182 AC401 AC421 AC431 AC441 AC442 AC482 AC532 AC661 AC662 AD261 AD282 CC23 CC38 DD01 DD23 DD27 DD31 EE06 EE07 4H003 AB09 AC08 AC10 DA02 EB09 EB16 EB42 ED02 ED29 FA02 FA10 FA16 FA21 FA30

Claims (2)

[Claims] 1. An (A) N-acyl amino acid salt, (B) a cellulose-based natural polymer derivative, and (C) an ethylene oxide addition polyoxyethylene sorbitan fatty acid ester having an addition mole number of 10 to 30 and an addition of ethylene oxide. The number of moles of polyoxyethylene sorbit fatty acid ester having a mole number of 30 to 60, and the number of moles of ethylene oxide added are 10
To 60 polyoxyethylene monofatty acid ester, ethylene oxide addition mole number 20 to 60 polyoxyethylene castor oil, ethylene oxide addition mole number 20 to 100 polyoxyethylene hydrogenated castor oil, ethylene oxide addition mole number The number of polyoxyethylene alkyl ether having a number of 20 to 40, the degree of polymerization of glycerin is 6 to
10. A detergent composition containing one or more nonionic surfactants selected from the group consisting of polyglycerol fatty acid esters of No. 10. 2. The cleaning composition according to claim 1, further comprising (D) a polyhydric alcohol.