JPH0418494A - Low-stimulation detergent composition - Google Patents

Abstract

PURPOSE:To provide the subject composition containing an alkylsaccharide surfactant and an alkyl ether fatty acid salt, having high frothing performance and giving refreshing feeling when used for the cleaning of hair or skin. CONSTITUTION:The objective composition contains (A) an alkylsaccharide surfactant expressed e.g. by formula I (R1 is 8-18C alkyl, alkenyl or alkylphenyl; G is 5-6C reducing sugar residue; X is 2-4C oxyalkylene; p is 0-20; q is 1-10) and (B) an alkyl ether fatty acid salt expressed e.g. by formula II [R2 is 6-22C alkyl, alkenyl or alkylphenyl having 6-17C alkyl group; R3 and R4 are H, methyl or ethyl and at least one of them is H; A is O or S; B is 1-3C alkylene; M is alkali metal, alkaline-earth metal, ammonium or alkanolamine; r is 0-20].

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a hypoallergenic detergent composition, more specifically, a highly foaming detergent composition containing an alkyl saccharide surfactant and an alkyl ether fatty acid salt. The present invention relates to a detergent composition that is hypoallergenic and provides a refreshing feeling when used for washing hair and skin.

[Conventional technology and its problems]

Nonionic surfactants have traditionally been used in skin, hair, and dishwashing detergent compositions, but although they are hypoallergenic, they have poor foaming properties, so they are particularly difficult to use in shampoos and body washes. At present, detergent compositions that require high foaming power from the viewpoint of palatability do not contain large amounts of it. In addition, conventional detergents that use nonionic surfactants alone have insufficient foaming and cleaning properties.
When used for cleaning the skin, hair, etc., it has problems in terms of feel, such as a strong squeaking sensation.

On the other hand, since alkyl saccharide surfactants have high foaming properties among nonionic surfactants, cleaning compositions in which they are used in combination with anionic surfactants such as alkyl sulfates have been proposed ( Japanese Patent Publication No. 58-1046
No. 25). However, although this also has excellent foaming properties, it has the disadvantage of being irritating to the skin and hair, and when the alkyl chain length of the alkyl saccharide surfactant is 10 or more, it may precipitate at low temperatures. However, there still existed the problem of poor low temperature stability.

Therefore, clothing, tableware, and skin products that contain nonionic surfactants, are hypoallergenic to hair and skin, have sufficient foaming and cleaning properties, and have excellent conditioning effects such as moisturizing properties. It has been desired to develop a detergent composition that can be used on hair and the like.

[Means to solve the problem]

Under such circumstances, the present inventors conducted intensive research to solve the above problems and found that if an alkyl saccharide surfactant, which is a nonionic surfactant, and an alkyl ether fatty acid salt are used together, Not only does the foaming property improve, but the quality of the foam is creamy, and it has an excellent slippery feel on the skin when lathered, and it also has a moist feel on the hair and skin after washing, and has an excellent conditioning effect, and is less irritating. The present invention has been completed based on the discovery that a detergent composition can be obtained that has no oxidative stress and also has improved low-temperature stability.

That is, the present invention provides a mild detergent composition containing an alkyl saccharide surfactant and an alkyl ether fatty acid salt.

The alkyl saccharide surfactant in the present invention is not particularly limited as long as it can be used in ordinary detergents, but for example, it has the following general formula (I)R, -(X)p-(G).

(1) [In the formula, R1 represents a linear or branched alkyl group, alkenyl group, or alkylphenyl group having 8 to 18 carbon atoms, G represents a reducing sugar residue having 5 to 6 carbon atoms, and X represents represents an oxyalkylene group having 2 to 4 carbon atoms,
p represents a number from 0 to 20, and q represents a number from 1 to 10].

In formula (1), X is preferably an oxyalkylene group having 2 to 4 carbon atoms, an oxyethylene group, or an oxypropylene group. Further, p is a number from 0 to 20, preferably from 0 to 4.

R3 in the formula (I) is a straight-chain or branched alkyl group, alkenyl group, or alkylphenyl group having 8 to 18 carbon atoms, particularly a straight-chain or branched alkyl group having 9 to 14 carbon atoms. It is preferable. In addition, the saccharide moiety (G in formula (I)), which is a hydrophilic group, has a reducing sugar having 5 to 6 carbon atoms as a basic unit, and the reducing sugar is particularly glucose,
Galactose or fructose is preferred. Further, the average degree of polymerization of the saccharide (q in formula (I)) is 1 to 10, and it is preferable that the degree of polymerization is 1 to 4 or 80% or more.

Also, considering the influence of both the degree of polymerization and the group R7 on compound (I), when the number of carbon atoms in R1 is 8 to 11, q
is from 1 to 14, and the number of carbon atoms in R4 is from 12 to 1.
When it is 4, it is preferable that q is 15 to 40. Further, as the degree of polymerization increases, the foaming power tends to decrease, so from the viewpoint of foaming power, it is particularly preferable that R1 has 8 to 11 carbon atoms and the average degree of polymerization q is 1 to 14. still,
The average degree of polymerization q can be measured by proton NMR method.

The above-mentioned alkyl saccharide surfactants include octyl glucoside, nonyl glucoside, decyl glucoside, decyl maltoside, polyoxyethylene (2,E
, O) Those synthesized from β-alkyl saccharides such as dodecyl maltoside, dodecyl maltoside, and tridecyl maltoside, reducing sugars such as glucose, galactose, and maltose, and higher alcohols, polyoxyethylene alkyl ether alcohols, etc. (U.S. Pat. No. 3,839
, No. 318, No. 3,598,865).

The alkyl saccharide surfactant is contained in the composition of the present invention in an amount of 1 to 60% by weight (hereinafter simply expressed as %); in particular, 1 to 30% when the composition is a shampoo, and 1 to 30% by weight when the composition is a skin cleansing agent. 1-50%, 2-50% for dishwashing detergents
It is preferable that the amount is 20%, or 1 to 90% in the case of a laundry detergent.

As the alkyl ether fatty acid salt in the present invention, for example, the following general formula (II) R2-A-(CH-CH(J)p-B-COOM
(TI) [In the formula, R2 represents an alkyl group or alkenyl group having an average of 6 to 22 carbon atoms, or an alkylphenyl group having an alkyl group having 6 to 17 carbon atoms, and R3 and R4 are each a hydrogen atom, a methyl group, or an ethyl group. group, at least one of which is a hydrogen atom. A represents an oxygen atom or a sulfur atom, B represents an alkylene group having 1 to 3 carbon atoms, M represents an alkali metal, alkaline earth metal, ammonium, or alkanolamine, and r represents a number of O to 20] Can you name something that is expressed as ?

For example, monochloroacetic acid or monobromoacetic acid salts, chloropropionic acid, chloron-
It can be obtained by reacting a salt of butyric acid or the like, or by oxidizing polyoxyalkylene alkyl ether. Representative compounds include polyoxyethylene lauryl ether sodium acetate (average number of added moles of alkylene oxide n = 5), polyoxyethylene myristyl ether ammonium acetate (n = 3) p polyoxyethylene cetyl ether magnesium acetate (n = 7) p polyoxypropylene lauryl ether potassium acetate (n
=4) pPolyoxybutylene lauryl ether acetic acid triethanolamine (n=1) ppolyoxyethylene myristyl ether sodium propionate (n=3) ppolyoxyethylene cetyl ether butyrate jetanolamine (n=5), polyoxy Examples include ethylene lauryl thioether potassium acetate (n=7).

The alkyl ether fatty acid salt is contained in the composition of the present invention in an amount of 1 to 60%.
%, especially if the composition is a shampoo, from 1 to 30%
It is preferable that the amount is 1 to 50% in the case of a skin cleansing agent, 2 to 20% in the case of a dishwashing agent, and 1 to 90% in the case of a clothing cleaning agent.

The amount of the alkyl saccharide surfactant and the alkyl ether fatty acid salt in the total composition is preferably about 2 to 90%, particularly about 5 to 60%, and the mixing ratio is as follows: The ratio of alkyl saccharide surfactant to alkylethyl fatty acid salt can be arbitrarily selected within the range of 1.9 to 9:1, and is particularly preferably within the range of 1:4 to 4:1.

The pH of the composition of the present invention is preferably adjusted to 3 to 10, particularly 4 to 8 (pl), using a known acidic or alkaline agent used in ordinary detergent compositions.

In addition to the above-mentioned essential ingredients, the cleaning composition of the present invention contains ingredients commonly used in cleaning agents, such as humectants such as propylene glycol, glycerin, and sorbitol; methyl cellulose, carboxyvinyl polymer, hydroquine ethyl cellulose, and polyoxy. Viscosity modifiers such as ethylene glycol stearate and ethanol; Pearlizing agents: Fragrances;
Pigments; UV absorbers; Antioxidants such as nitriclosan and trichlorocarpan; Anti-inflammatory agents such as potassium glycyrrhizinate and tocopherol acetate; Anti-dandruff agents such as zinc pyrithione and 1-hydroxy-2-pyridone derivatives;
Preservatives such as methylparaben and butylparaben; Solubilizers such as sodium and potassium salts of toluenesulfonic acid and xylenesulfonic acid and urea; Viscosity regulators such as clay minerals and water-soluble polymer substances; Calcite, silica stone, calcium phosphate, It is also possible to optionally add water-insoluble abrasives such as zeolite, polyethylene, nylon, and polystyrene; enzymes, etc. within a range that does not impair the effects of the invention.

The detergent composition of the present invention can be used for a variety of purposes, such as a detergent for clothing, a detergent for dishes, a detergent for the skin, and a detergent for hair. can be selected arbitrarily. In this case, the content of the alkyl saccharide surfactant and the alkyl ether fatty acid salt in the composition is the total amount of both, and if it is a solid dosage form, the content is 30%.
As mentioned above, it is preferable that the content is 20% or more in the case of a paste-like dosage form, and 5% or more in the case of a liquid dosage form.

〔Example〕

EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Cleaning compositions (p) 17) having the compositions shown in Table 1 below were produced, and each was evaluated for foaming amount, foam quality, moist feeling for hair and skin, storage stability, and skin irritation. I did this.

In addition, the evaluation of foam quality and moisturizing feeling for hair and skin was performed by applying 1 g of cleaning solution to 20 g (15 cm) of hair of a healthy Japanese woman and lathering for 1 minute, and after rinsing and drying with a hair dryer. Five expert panelists examined the hair, the skin after lathering 1 g of the cleaning solution in the palm of the hand, and the skin after rinsing with water and drying.

In addition, the amount of foaming was evaluated by an inversion stirring method.

Furthermore, the low temperature stability was evaluated by testing the cleaning composition for 1 month at 5.
It was stored at a temperature of -5°C and its stability was visually checked.

Skin irritation was evaluated using detergent 2 on guinea pig skin.
This was done after washing seven times with a 5% solution.

<Evaluation Criteria> Up to 1 0 Shows sufficient foaming △ Foaming but feels insufficient × = Almost no foaming -1 ○ Foam quality is creamy and slippery △ Foam quality is slightly rough, does not soften × Foam quality is rough, Moist and moist ○ Squeaky and moist △ Slightly squeaky and slightly not moist × Squeaky and not moist (1 branch 10 Transparent △ Slightly cloudy × Skin with cloudiness or sedimentation) 01 Pillar ○ No irritation to slight irritation Δ Mild irritation × Moderate to strong irritation Margin Example 2 Shampoo: (%) ■ C+o-CG)r, as ”
8 ■ Polyoxyethylene (3) lauryl
12 Ether sodium acetate ■ Coconut oil fatty acid jetanolamide 5 ■ Cationized cellulose 2) 03 ■ Fragrance
Trace amount ■ Pigment
Trace amount ■ Salt
l■ Water
Balance 1) C3゜: Decyl group G Nigelcose residue 2) Polymer JR400 (manufactured by Union Carbide) The resulting shampoo does not cause hair squeaks, is quick to rinse, has a light feel, and has good lathering. Met. Furthermore, the low temperature stability was also good.

Example 8 Face wash foam: (%) ■ C+2-(EO)2-(G)2. s”
30 ■ Polyoxyethylene (7) tetra 30 decyl ether sodium acetate ■ Lauric acid 4 ■ Ethylene glycol distearate 4-t4' ■ Fragrance
Trace amount ■ Water
Balance 3) C1□ Nilauryl group G nigercose residue 4) Emanone 3201M (manufactured by Kao) The resulting facial cleansing foam foams well, rinses off quickly, and leaves the skin feeling smooth and moist after drying. Ta.

Example 4 Dishwashing detergent: (%) ■ C+o-(G)+, ”
15 ■ Polyoxyethylene (5) lauryl 5 ether sodium acetate ■ Lauryl methylamine oxide 2 ■ Ethanol 3 ■ Fragrance
Small amount■
Pigment Trace amount ■ Water balance 61 (,. Nidecyl group G Nigelcose residue The obtained dish detergent had excellent detergency and foaming power, and had a light feel and good rinsing properties. .

〔Effect of the invention〕

The cleansing composition of the present invention has excellent cleaning power and foaming power, has a creamy foam quality, has an excellent slippery feeling on the skin when lathered, and has a good feel on the hair and skin after washing. It has a moist and conditioning effect, is non-irritating, and has excellent low temperature stability, making it suitable for clothing,
It is useful as a cleaning agent for dishes, skin, hair, etc.

that's all

Claims (1)

[Scope of Claims] 1. A mild detergent composition containing an alkyl saccharide surfactant and an alkyl ether fatty acid salt. 2. The alkyl saccharide surfactant has the following general formula (
I) R_1-(X)_p-(G)_q(I) [In the formula, R_1 represents a straight-chain or branched alkyl group, alkenyl group, or alkylphenyl group having 8 to 18 carbon atoms, and G is the number of carbon atoms Indicates 5 to 6 reducing sugar residues, where X has 2 carbon atoms
~4 oxyalkylene group, p represents a number from 0 to 20, and q represents a number from 1 to 10.] The hypoallergenic cleaning composition according to claim 1, which is represented by the following formula. 3. The alkyl ether fatty acid salt has the following general formula (II) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ (II) [In the formula, R_2 is an alkyl group or alkenyl group with an average carbon number of 6 to 22, or a carbon number of 6 to It represents an alkylphenyl group having 17 alkyl groups, R_3 and R_4 each represent a hydrogen atom, a methyl group, or an ethyl group, and at least one of them is a hydrogen atom. A represents an oxygen atom or a sulfur atom, B represents an alkylene group having 1 to 3 carbon atoms,
M represents an alkali metal, an alkaline earth metal, ammonium or an alkanolamine, and r represents a number from 0 to 20.] The hypoallergenic cleaning composition according to claim 1, wherein M represents an alkali metal, an alkaline earth metal, ammonium or an alkanolamine, and r represents a number from 0 to 20.