JPH01287017A - Low-irritant washing agent composition - Google Patents

Abstract

PURPOSE:To provide a low-irritant washing agent composition exhibiting high cleaning property against the stain of make-up and sebum, by using a nonionic surfactant having a specific HLB value and an anionic surfactant such as an N-acylglutamic acid surfactant gas essential components. CONSTITUTION:The objective composition contains (A) a nonionic surfactant of formula I (R1 is 4-30C branched-chain hydrocarbon group; x is 0-30; y is 0-30) and having an HLB of 3-8 and (B) an anionic surfactant selected from a surfactant of formula II (R2 is 7-21C alkyl or alkenyl; M1 and M2 are H, alkali metal, etc.), an isethionate-type surfactant of formula III (R3 is 7-21C alkyl or alkenyl; M is H, alkali metal, etc.) and a sulfosuccinic acid-type surfactant of formula IV. The weight ratio of A:B is 1:9-9:1 and the sum of the components A and B is 10-90wt.%. The composition gives moisture to the skin in spite of its high detergency.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a novel hypoallergenic detergent composition, and more specifically, it has high cleaning properties against makeup stains such as lipstick and foundation and sebum stains. The present invention relates to a cleansing composition for body cleansing that is hypoallergenic to the skin and hair.

[Conventional technology]

Traditionally, makeup stains from lipstick, foundation, eye shadow, mascara, etc. contain large amounts of oil or solid oil, and regular soap-based facial cleansing foams do not have the ability to solubilize or emulsify. It is not enough and cannot remove makeup stains. Therefore, makeup stains have been removed using cleansing creams, cleansing oils, gel cleansing agents, etc. mainly containing oil-based bases.

On the other hand, when dirt such as fat and keratin proteins get into the pores of the skin and solidify, causing inflammation within the hair follicles, as in the case of acne, commonly used facial cleansers do not remove the solid dirt that clogs the pores. To remove it, the detergency is not sufficient, and keratolytic agents such as salicylic acid and sulfur are commonly used in combination.

[Problem to be solved by the invention]

As mentioned above, in order to remove solid oils such as make-up and sebum, as well as strong oily stains, regular facial cleansers based on fatty acid soaps and anionic and nonionic surfactants,
Cleanability is not sufficient. On the other hand, cleansing creams with oil-based bases have the disadvantage that when used in hot and humid places such as bathrooms, the emulsification state deteriorates due to the inclusion of water, making it difficult to remove stains or causing separation. Was.

[Means to solve the problem]

As a result of intensive research by the present inventors to solve the above problems,
A specific nonionic surfactant and at least one hypoallergenic anionic surfactant selected from N-acylglutamic acid surfactants, isethionate surfactants, and sulfosuccinic acid surfactants. The present invention was completed based on the discovery that by combining these combinations, a foaming detergent composition that has high cleaning properties against oily stains, is less irritating to the skin, and is stable even in humid places. I came to the conclusion.

That is, the present invention has the following characteristics: (A) General formula % Formula % (1 (wherein, R1 represents a branched saturated or unsaturated hydrocarbon group having 4 to 30 carbon atoms, X is 0 to 30, and y is O ~30
represents an integer. However, x+y≧1), and IIL
A nonionic surfactant in which B is 3 or more and less than 8, and (B) (i) an N-acylglutamic acid surfactant (i
Provided is a hypoallergenic detergent composition comprising at least one hypoallergenic anionic surfactant selected from i) isethionate surfactants (iii) sulfosuccinic acid surfactants. It is something to do.

The nonionic surfactant represented by the above general formula [I], which is the component (A) of the present invention, has a B of 3 or more and less than 8,
It is also necessary to have a branched chain.

For the anus B, the value given by the following equation determined from the organic and inorganic properties of Koide and Teramura et al. was adopted here.

In the present invention, if the HLB of the nonionic surfactant is less than 3, the hydrophobicity will be too strong and it will become an oil component, resulting in significantly poor foaming properties. Furthermore, if the IILB of the nonionic activator is 8 or more, the hydrophilicity will be high and the cleaning and emulsifying properties of oily makeup stain components will be poor. Therefore, the HLB of the nonionic surfactant is preferably 3 or more and less than 8, particularly preferably 6 to 7.5.

Furthermore, even if the nonionic surfactant falls within this IILB value range, those with a straight chain hydrocarbon group have insufficient cleaning properties and are not sufficient for the purpose of removing oily stains. It does not serve any purpose, but is a nonionic surfactant with a branched-chain hydrocarbon group that has sufficient cleaning properties to remove makeup and oily stains from strong sebum.

In the nonionic surfactant represented by the general formula CI), which is the component (A) of the present invention, the preferred branched hydrocarbon chain is a secondary branched chain having 4 to 30 carbon atoms, or a branched alkyl chain selected from the following: groups, i.e. 2-ethylhexyl, 2-
Ethyl octyl, 2-ethyldecyl, 2-ethyldodecyl, 2-butyloctyl, 2-butyldecyl, 2-butyldodecyl, 2-butyltetradecyl, 2-hexyldecyl, 2-hexyldodecyl, 2-hexyltetradecyl, 2-hexylhexadecyl, 2-octyldecyl,
2-octyldodecyl, 2-octyltetradecyl, 2
-octylhexadecyl, 2-octyloctyldecyl, 2-decyltetradecyl, 2-hebutylundecyl,
A methyl branched isostearyl group is preferred. Among these, branched secondary alkyl groups having 10 to 14 carbon atoms, 2-hexyldecyl group, 2-ethylhexyl group, 2-octyldodecyl group, and 2-hebutylundecyl group are preferred.

In addition, in the nonionic surfactant represented by the general formula (N), the number of added moles x and y of propylene oxide and ethylene oxide are each selected from 0 to 30, but X is O to 30, and y is 1 to 20 are preferred, and particularly preferably X is 0 to 4 and y is 3 to 10.

Among the components (B) used in the present invention, the N-acylglutamic acid surfactant has the general formula (wherein R2 represents an alkyl group or alkenyl group having 7 to 21 carbon atoms, M
1 and M2 each represent a cationic group derived from H, an alkali metal or an alkanolamine. ) Compounds represented by:

The compound represented by the above general formula (II) has an L form, an O form, or a racemic form, and any of these can be used. Preferred specific examples include N-lauroylglutamic acid, N-myristoylglutamic acid, N-balmitoylglutamic acid, N-stearoylglutamic acid, N-
- cocoyl glutamic acid, and their sodium, potassium, triethanolamine, monoethanolamine, and jetanolamine salts.

Among the components (B) used in the present invention, isethionate surfactants have the general formula % formula %) (wherein R1 represents an alkyl group or alkenyl group having 7 to 21 carbon atoms, i is H, represents a cationic group derived from an alkali metal or an alkanolamine).

In the compound represented by the above general formula (III), R,
Examples of the fatty acid group represented by -COO- include lauric acid group, myristic acid group, oleic acid group, and coconut oil fatty acid group. Counter cations represented by 1 include potassium, sodium, and triethanol. Examples include amine, jetanolamine, monoethanolamine, and the like.

Among the components (B) used in the present invention, the sulfosuccinic acid surfactant has the general formula (IV) or (V) (; R4-C-Cl1-CI+2-C00M'
(TV) SO, M' Ra CC11z C1l C00M'
(V')503M' [In the formula, R4 is RsO+ Cl1zCHzO→T or R6
C0NH+ CH2Cl1□o-h-; R5 is a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms; R6 is a linear or branched alkyl group or alkenyl having 7 to 21 carbon atoms; group, m is 0-2
(indicates the number of 0), each group represents Hl or a cation forming a water-soluble salt selected from alkali metals, alkaline earth metals, ammonium and organic ammonium] or its ethoxylates. Examples include sulfosuccinate esters and sulfosuccinates derived from higher fatty acid amides.

Among the compounds represented by the above general formula [■] or [■],
As the sulfosuccinate ester of higher alcohol or its ethoxylate, disodium salt of sulfosuccinate ethoxylate of a secondary alcohol having 11 to 13 carbon atoms (for example, Nippon Shokubai Chemical Co., Ltd., Softanol l)
'1Es-3゜5, 7.9.12; each number indicates the average number of added moles of ethylene oxide (EO))
, disodium salt of sulfosuccinic acid ester of lauryl alcohol or lauryl alcohol ethoxylate (EO=3.6.9.12), synthesis 1 having 12 to 15 carbon atoms
Examples include disodium salts of sulfosuccinates of alcohols and their ethoxylates (EO=2 to 4). In addition, polyethylene glycol laurate (E
O = 1.2) Disodium salt of sulfosuccinate ester of amide, polyethylene glycol oleate (EO-
L 2) Disodium salt of amide sulfosuccinate, coconut oil fatty acid polyethylene glycol (EO=4
), sodium salts of sulfosuccinates, etc.

The blending ratio of the above-mentioned (A) component and (B) component in the cleaning composition of the present invention is preferably 10 to 90% by weight, particularly 20 to 60% by weight as the total amount of the (A) component and (B) component. %
It is preferable that the degree of In addition, (A) component and (B)
Although the weight ratio of the components can be arbitrarily selected within the range of (^):(B)-1:9 to 9:1, it is particularly preferably 1:9 to 4:6.

In addition to the above-mentioned hypoallergenic anionic surfactant, the detergent composition of the present invention also contains conventionally used detergents, such as fatty acid soaps, alkyl sulfates, alkyl ethoxy sulfates, etc. It can be blended within a range that does not impair irritation and high detergency. Furthermore, anionic surfactants, amphoteric surfactants, and nonionic surfactants other than the above-mentioned essential components can be used in combination to improve foaming properties within a range that does not impair the effects of the present invention. Further, it may contain anionic polymers, nonionic polymers, etc. as thickeners, as well as stabilizers, perfumes, pigments, etc., which are commonly used in detergents.

[Examples] Next, the present invention will be specifically described with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Various cleaning compositions having the compositions shown in Table 1 were prepared, and their performance was evaluated by the following method.

The results are shown in Table 1.

(1) Cleaning power test method A8 Artificially contaminated cloth method (a) Manufacture of artificially contaminated cloth Uniformly disperse artificial oily stains in a solvent, wet a cotton cloth with this solution and dry it to evenly remove the artificial oily stains. Make it adhere. This cloth was made into a 10 cm x 10 cm test piece and used in the experiment.

(b) Cleaning conditions and method Dissolve the cleaning composition in 4°OH hard water at a ratio of 3% by weight to make 500 ml. A set of 5 artificially contaminated cloths was stirred with a turbotometer at 10°rI'm + 30°C for 5 minutes, rinsed under running water, and then iron-pressed to measure the reflectance and determine the cleaning rate, and the following criteria were used. Evaluated by.

B. Pork skin method Apply lipstick evenly in a circle with a diameter of 1 cm on a pig skin (2 cm x 2 cm). After 30 minutes, add 5 drops of a 20% by weight aqueous solution of the cleaning composition and apply it for 20 seconds with a flat glass rod. After pine surge, the skin was rinsed with running water, and after drying, residual lipstick was extracted from the pigskin using hexane, and UV measurement was performed to determine the cleaning rate, which was evaluated according to the following criteria.

Judgment criteria ◎ 80% or more 0 70% or more and less than 80% 8 60% or more and less than 70% They diluted it, lathered it up, washed their hands and face, and performed a sensory evaluation.

A, Foaming criteria ◎ Good lathering 0 Normal △ Slightly lathering × Poor lathering B, Moist feeling after washing, taut feeling Judgment criteria ◎ Moist and not sticky 0 Average Δ Slightly not moist and taut × Not moist and tight Example 2 (1) N-lauroylglutamic acid monotriethanolamine 35 (wtX) (3)
Ethylene glycol distearate 3 (Emanone 3201M) (4) Polyacrylic acid triethanolamine salt (Carbobol 941) 0.5 (5) Ethanol 5 (6) Fragrance
Trace amount (7) Ion-exchanged water Dissolve (1) to (4) in balanced heated water, and after cooling, (5), (6
) was added to prepare a facial cleanser as described above.

The resulting facial cleanser was able to remove make-up and cleanse the face, leaving the face moisturized.

Example 3 (1) N-lauroylglutamic acid monotriethanolamine 10 (wty, ) (2
) Polyoxyethylene (EO3,O) -5ec-tetradecyl ether 20(3) Triethanolamine myristate 10(4) Glycerin
8(6) Butylated hydroxytoluene
0.2(7) Ethanol 3(
8) Fragrance Trace amount (9) Ion-exchanged water Dissolve (1) to (6) in balanced heated water, and after cooling, (7), (8)
) was added to prepare a facial cleanser as described above.

The resulting facial cleanser was able to remove make-up and cleanse the face, leaving the face moisturized.

Example 4 (1) Sodium cocoyl isethionate 20 (w
tX) (3) Myristic acid
1 (5) Ethanol 2 (6)
Fragrance Trace amount (7) Ion-exchanged water Dissolve (1) to (4) in balanced heated water and after cooling, (5L (6)
was added to prepare a facial cleanser as described above.

The resulting facial cleanser was able to remove make-up and cleanse the face, leaving the face moisturized.

Example 5 (3) Myristic acid 1 (4
) Lauric acid 4(5) Ethylene glycol distearate 3(6) Ethanol
4 (7) α-tocopherol 0.2 (8) Fragrance trace amount (9) Pigment trace amount 0 ■ Ion exchange water Mix (1) to (5), (7), and (9) in balanced heated water, and after cooling. , (6), and (8) were added to prepare the above facial cleanser.

The resulting facial cleanser was able to remove make-up and cleanse the face, leaving the face moisturized.

Example 6 (2) Sodium cocoyl isethionate 10 (5
) Myristic acid 5 (7) salt 8 (8) Polyethylene glycol 2001 (9) Fragrance Trace amount 00) Ion exchange water Dissolve (1) to (8) in balanced heated water, add (9), and make a paste face wash. Adjusted the fee.

The resulting facial cleanser was able to remove make-up and cleanse the face, leaving the face moisturized.

〔Effect of the invention〕

As detailed above, in the present invention, a specific branched nonionic surfactant and at least one kind selected from N-acylglutamic acid surfactants, isethionate surfactants, and sulfosuccinic acid surfactants are used. By combining with a hypoallergenic anionic surfactant, it is possible to provide a highly cleansing foam body cleansing agent that can also remove makeup stains. In addition, the cleaning composition of the present invention moisturizes the skin and is hypoallergenic despite its high cleaning properties. Furthermore, it can be used in bathrooms where there is a lot of water, which is a drawback of ordinary cleansing creams, and by using the cleansing composition of the present invention, it is possible to effectively remove dirt in pores that causes acne.

Applicant's agent Kaoru Furutani

Claims (1)

[Claims] 1. (A) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ [I] (In the formula, R_1 represents a branched saturated or unsaturated hydrocarbon group having 4 to 30 carbon atoms. , x represents an integer of 0 to 30, and y represents an integer of 0 to 30.However, x+y≧1) A nonionic surfactant whose HLB is 3 or more and less than 8, and (B) (i) N - an acylglutamic acid surfactant (ii) an isethionate surfactant (iii) a sulfosuccinic acid surfactant; Irritating cleaning composition. 2. The total content of component (A) and component (B) in the cleaning composition is 10 to 90% by weight, and component (A) and (
The cleaning composition according to claim 1, wherein the weight ratio of component B) is (A):(B) = 1:9 to 9:1. 3. N-acylglutamic acid surfactants have the general formula ▲ mathematical formula, chemical formula, table, etc. ▼ [II] (In the formula, R_2 represents an alkyl group or alkenyl group having 7 to 21 carbon atoms, and M_1 and M_2 The cleaning composition according to claim 1, wherein the cleaning composition is selected from compounds represented by the following formulas: H, a cationic group derived from an alkali metal, or an alkanolamine, respectively. 4. Isethionate surfactant has general formula R_3-C
OOCH2CH_2SO_3M [III] (in the formula, R_3
represents an alkyl group or alkenyl group having 7 to 21 carbon atoms, and M represents a cationic group derived from H, an alkali metal, or an alkanolamine. ) The cleaning composition according to claim 1, which is selected from compounds represented by the following formulas. 5. The sulfosuccinic acid surfactant has the general formula [IV] or [V] ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ [IV] ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ [V] [In the formula, R_4 is ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. 21 linear or branched alkyl or alkenyl groups, m represents a number from 0 to 20), M' is H, or a water-soluble compound selected from alkali metals, alkaline earth metals, ammonium, and organic ammonium. The cleaning composition according to claim 1, wherein the cleaning composition is selected from compounds represented by the following formula.