JPH0335099A - Liquid detergent composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition jointly having cleaning effect, finishing effect and stable dispersibility comprising a composition containing surfactant, silicone oil and (meth)acrylic ester-based polymer, and dispersing said silicone oil in emulsified state. CONSTITUTION:The aimed composition contains (A) preferably anionic surfactant, (B) silicone oil expressed by formula I (n is 3-2500) and (C) polymer expressed by formula II (R<1> and R<3> are H or methyl; R<2> is 1-18C alkyl; R<4> and R<6> are 1-4C alkylene; R<5> is H, methyl or ethyl; P/Q=1/9-8/2 as a molar ratio) having 2X10<4>-100X10<4> averaged molecular weight in which the silicone oil is emulsified and dispersed. Said composition is used as detergent for hair or clothing, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a liquid detergent composition, such as a hair detergent or a clothing detergent, which has both a cleaning effect and a finishing effect.

[Conventional technology]

Up until now, cleaning agents and finishing agents have been used separately in order to wash hair and clothing, but in recent years various proposals have been made to obtain cleaning agents that have both cleaning and finishing effects. is being done. Many of these proposals attempt to obtain both a cleaning effect and a finishing effect by adding specific components that have a finishing effect to the cleaning agent.

Ingredients that have such a finishing effect include water-soluble silicone derivatives, water-soluble glyceride derivatives, humectants such as propylene glycol, glycerin, and ethylene glycol, or hydrocarbon oils and silicone oils (JP-A-61
-210022) etc., quaternary ammonium salts which are softeners or rinse bases, nonionic surfactants (JP-A-53-133206), amphoteric surfactants (JP-A-50-23407), etc. ), specific anionic surfactants (Japanese Patent Publication No. 52-35203), and specific cationic surfactants (Japanese Patent Publication No. 47-47845) are also known. Also, US Pat. No. 3,472,840 describes that shampoos formulated with polymer JR resin, which is a cationic cellulosic resin, have desirable properties as both a shampoo and a conditioner.

[Problem to be solved by the invention]

As mentioned above, with the diversification of hair care behavior in recent years, shampoos with various effects have come on the market, and in this case, consumers have many requests for shampoos, but as mentioned above, shampoos with various effects A shampoo that provides a cleansing effect and finishing properties such as suppleness and smoothness is desired at the same time, and since finishing the hair by drying it with heat from a hair dryer causes damage such as dryness of the hair,
There is also a demand for shampoos that have excellent hair cohesiveness and can maintain their hairstyle even when dried naturally.

However, cleaning agents that contain additives such as silicone oil for the purpose of improving finishing performance usually contain a large amount of surfactant to obtain foaming and cleaning power, so the effectiveness of finishing additives is reduced. In addition to not being fully effective, there was a fatal storage stability problem in that water-insoluble silicone oils coalesced and separated over time. Also.

Conventional cleaning agents that have been proposed for the purpose of imparting cleansing and finishing effects all leave hair supple,
This had a problem in terms of the finishing effect of providing smoothness and cohesiveness.

The present invention has been developed in view of the above circumstances. 1. It provides good suppleness, smoothness, and cohesiveness to items to be washed such as hair and clothing, and exhibits an excellent finishing effect. The purpose of the present invention is to provide a liquid cleaning composition with high dispersion stability.

[Means to solve the problem]

In order to achieve the above object, the present invention combines a surfactant, a silicone oil represented by the following formula (I), and a silicone oil represented by the following formula (■)...(■) (in which R1 and R3 are hydrogen atom or methyl group, respectively
R1 is an alkyl group having 1 to 1B carbon atoms, R4 and RG are each an alkylene group having 1 to 4 carbon atoms, am is a hydrogen atom,
Methyl group or ethyl group, P/Q↓molar ratio: 179
~8/2. ) and a polynomer having an average molecular weight of 20,000 to 1,000,000, and the above-mentioned silicone oil is dispersed therein.

That is, in the present invention, by using the silicone oil of the formula (I) and the polymer of the formula (II) together as a surfactant, these components act synergistically, and the silicone oil of the formula (I) acts synergistically. It has been possible to obtain a liquid detergent composition that has excellent dispersion stability and also has an excellent finishing effect that imparts good suppleness, smoothness, and cohesiveness to hair and clothing upon finishing.

The present invention will be explained in more detail below.

As mentioned above, the liquid cleaning composition of the present invention contains a surfactant, a silicone oil of formula (I), and a polymer of formula (■) having a molecular weight of 20,000 to 1,000,000.

In this case, the type of surfactant is not particularly limited, but it is preferable to use the anionic surfactants shown in (A) to (E) below, which can provide excellent detergency.

(A) The following formula (I) R, SO3M,
...(I) [wherein R1 has 12 to 16 carbon atoms]
α-olefin, vinylidene type olefin having 12 to 16 carbon atoms, inner olefin having 12 to 16 carbon atoms, hydroxyalkyl group having 12 to 16 carbon atoms, or linear or branched chain having 10 to 18 carbon atoms paraffin, Ml is an alkali metal, alkyl-substituted ammonium or hydroxyalkyl-substituted ammonium. ] A sulfonate represented by

Specifically, as the compound of the above formula (I), for example, α-
Examples include olefin sulfonate (AO3 salt).

CB) Following formula (2) % formula % (2) [In the formula, R2 is an alkyl group having 8 to 18 carbon atoms or an alkylphenyl group having an alkyl group having 5 to 15 carbon atoms, and R1 is an alkyl group having 2 carbon atoms. -3 alkyl group, m is O-6 as an average value, M is an alkali metal, alkaline earth metal, alkyl-substituted ammonium or hydroxyalkyl-substituted ammonium. ] A sulfate represented by

Specifically, as the compound of the above formula (2), for example, natural lauryl alcohol polyoxyethylene (m=3) sulfur f
t&ester, C1, ~C15 aliphatic alcohol polyoxyethylene (m=3) sulfate ester, 01□~C1,
Aliphatic alcohol oxyethylene sulfate, C0~
Examples include C13 aliphatic alcohol sulfuric esters and those in which the sulfuric ester moiety is a sodium salt, potassium salt, or alkanolamine salt of sulfuric acid. Among these, polyoxyethylene (m
= 3) Sodium lauryl ether sulfate is particularly preferred.

(C) The following formula (3) [wherein R4 is a non-aromatic hydrocarbon group having an average number of carbon atoms of 9 to 17, M and M are each an ammonium ion,
alkanolamine ions, lower alkylamine ions, basic amino acid cations, sodium, potassium,
Alkaline earth metal or hydrogen. ] N-acylglutamic acid or its derivative represented by these.

Specifically, the compound of the above formula (3) or a derivative thereof includes, for example, N-lauroylglutamic acid; N-myristoylglutamic acid; N-valmitoylglutamic acid;
N-acylglutamic acids: and mixtures of these N-acylglutamic acids, as well as monoethanolamine salts, jetanolamine salts, triethanolamine salts, sodium salts and potassium salts of these N-acylglutamic acids, etc. . These can be used as optically active forms or racemates.

(D) Formula (4) % Formula % (4) c In the formula, R1 is a non-aromatic hydrocarbon group having an average number of carbon atoms of 9 to 17, R1 is a hydrogen atom, a straight chain having 1 to 4 carbon atoms, or It is a branched alkyl group, and 1MS is an ammonium ion, an alkanolamine ion, a lower alkylamine ion, a cation of a basic amino acid, sodium, potassium, an alkaline earth metal, or hydrogen, and p is 1 or 2. ] An N-acyl-N-alkyl amino acid or a salt thereof.

Specifically, the compound of formula (4) or its salt is 1
For example, N-lauroyl-N-ethylglycine, N-lauroyl-N-isopropylglycine, N-lauroylsarcosine, N-myristoylsarcosine, N-balmitoylsarcosine.

N-lauroyl-N-methyl-β-alanine, N-lauroyl-N-ethyl-β-alanine, N-myristoyl-β-alanine, N-valmitoyl-β-alanine and mixtures thereof, and monoethanol thereof Mention may be made of amine salts, jetanolamine salts, triethanolamine salts, sodium salts and potassium salts.

(E) The following formula (5) ps-pigeon ・
...(5) Paraffin sulfonate or its salt represented by [However, PS is a straight chain or branched chain alkyl group sulfonate having 10 to 18 carbon atoms, and the acid group 1M6 represents an alkali metal or alkaline earth metal ion.] .

Specifically, the compound of formula (5) or its salt is Ho
5tapur SAS (manufactured by Hoechst, trade name).

Furthermore, in the present invention, a nonionic surfactant.

Surfactants other than anionic surfactants can be used, such as amphoteric surfactants. Examples of the surfactant in this case include polyoxyethylene higher alcohol phosphate esters or salts thereof, and polyoxyethylene higher fatty acid esters or salts thereof.

In the present invention, one or more of the above surfactants can be used. The blending amount thereof is preferably 5 to 30% by weight, particularly 10 to 20% by weight of the entire composition, and by blending within this range, the effects of the present invention are more reliably exhibited.

Further, the silicone oil used in the present invention is a dimethylpolysiloxane represented by the above formula (I), that is, (n'' is 3 to 2,500).

Specifically, as the silicone oil of the above formula (I), for example, 5H200 (0.65 cs
~1,000,0OOcs) can be used.

(The amount of silicone oil in the formula is 0.01% of the total composition.)
The content is preferably 10% by weight, particularly 0.1% to 5% by weight. If it is less than 0.01% by weight, the finishing performance such as hair flexibility and smoothness may not be fully exhibited.
Moreover, if it exceeds 10% by weight, the large amount of silicone oil not only deteriorates the manageability of the hair but also may deteriorate the dispersibility.

Furthermore, the polymer used in the present invention has the above formula (■), that is, (X) (Y)...(II) (wherein R1 and R3 are each a hydrogen atom or a methyl group,
R2 is an alkyl group having 1 to 18 carbon atoms, preferably 1 to 10 carbon atoms, R4 and RG are each an alkylene group having 1 to 4 carbon atoms, preferably 1 to 2 carbon atoms, R1 is a hydrogen atom, a methyl group or an ethyl group, P/ Q is 1/9 to 8/2 as a molar ratio. ) average molecular weight of 20,000 to 1,000,000, preferably 2
A copolymer consisting of an acrylic ester or methacrylic ester (hereinafter referred to as the X component) and a betaine type amphoteric compound of an acrylic ester or methacrylic ester (hereinafter referred to as the Y component). It is.

In this case, the molar ratio of the X component to the Y component is 179 to 8/2. It is preferably in the range of 2/8 to 7/3; if the molar ratio of the
When the molar ratio of the fc component is high, the hydration power of the polymer is significantly reduced when a strong electrolyte coexists in the 7ionic activator system,
When silicone oil cannot be stably dispersed, and when P and Q are within the molar ratio mentioned above, the polymer becomes moderately water-soluble, and even if a strong electrolyte coexists in the system, the ions in the molecule It maintains a targeted neutralizing effect, does not degenerate even in an activator solution, and is not only effective in stabilizing the dispersion of silicone oil, but also significantly improves finishing performance.

Specifically, the polymer of formula (II) above includes:

Yukaformer AM-75201. Yukaformer-AM
204. Yuka former AMW, Yuka former AMW
H (manufactured by Mitsubishi Yuka Co., Ltd.) and the like.

The amount of the polymer of formula (n) is 0.1 to 5% of the total composition.
% by weight, preferably 0.5 to 3% by weight,
If it is less than 0.1% by weight, the dispersibility of the silicone oil may deteriorate, and if it exceeds 5% by weight, the hair may feel stiff, and finishing performance such as suppleness and smoothness may not be fully exhibited.

The liquid detergent composition of the present invention is prepared as a shampoo for hair, a detergent for clothing, etc. In this case, the liquid detergent composition of the present invention may be used within a range that does not affect the effects of the invention. In this step, commonly used auxiliary additives can be added as necessary. Examples of such additives include common salt, mirabilite, solubilizers, antioxidants such as BTH1α-tocopherol, ultraviolet absorbers, and pearlescent agents.

Emulsifiers, anti-dandruff agents, tonic agents, pH adjusters, protein inducers, animal extracts, fungicides, pigments.

Conditioning agents such as fragrances, cationic surfactants, and cationic polymers can be mentioned. In this case, the system compatibility of the composition can be improved by incorporating a lower alcohol such as ethyl alcohol or ylpropyl alcohol into the composition of the present invention within a range that does not adversely affect foaming.

〔Effect of the invention〕

As explained above, the liquid detergent composition of the present invention not only has good dispersion stability of silicone oil, but also exhibits excellent finishing performance, such as giving suppleness, smoothness, and manageability to hair. It is a product that can fully meet the diversified needs of consumers.

The present invention will be specifically explained below with reference to Examples.
The present invention is not limited to these examples. Prior to the description, evaluation methods adopted by each side will be explained.

(I) Storing the liquid detergent composition with adjusted dispersibility of silicone oil at 45°C for one week,
One criterion determined by visual observation or microscopic observation is as follows.

0: Uniformly dispersed Δ: No coalescence but 1 separation ×: Coalescence and separation (2) Hair suppleness Hair bundle after washing, rinsing and drying (5g, 2
0 country) was sensory evaluated by 20 testers using a paired comparison method in comparison with the case using a standard shampoo. The evaluation criteria are as follows.

O: Better suppleness than standard shampoo O: Slightly better suppleness than standard shampoo Δ: Same suppleness as standard shampoo ×: Less suppleness than #A quasi-shampoo (3) Hair smoothness (2) Sensory evaluation was performed in the same manner as the evaluation method.

However, the evaluation criteria in this case are as follows.

O: Smoothness is better than the standard shampoo 0: Smoothness is slightly better than the standard shampoo Δ: Smoothness is the same as the standard shampoo Sensory evaluation was performed in the same manner as in the evaluation method 2).

However, the evaluation criteria in this case are as follows.

O: Hair clumpiness is better than the standard shampoo. 0: Hair clumpiness is slightly better than the standard shampoo. Δ: Hair clumpiness is the same as the standard shampoo. ×: Hair clumpiness is inferior to the standard shampoo. In the above tests (2) to (4), standard shampoos were 10% by weight of sodium polyoxyethylene lauryl ether sulfate CD: 3) and 3% by weight of coconut oil fatty acid jetanolamide.

A composition containing 1% by weight of sodium sulfate and water balance was used.

Each Example and Comparative Example will be explained below, and the contents of each component shown in the table below are all percentages by weight. The composition of the present invention containing the polymer of formula (II) has improved dispersibility of silicone oil and finishing effects (flexibility, smoothness).

It is recognized that it is excellent in imparting cohesiveness. In contrast, compositions in which the polymer of formula (■) was not blended (Comparative Examples 1 to 3.7 to 10) and compositions in which dimethylpolysiloxane of formula (I) were not blended (Comparative Examples 4 to
No. 6, 11 to 14) were all inferior in one or more of each evaluation item, and could not achieve the object of the present invention.

Claims (1)

[Claims] 1. A surfactant, a silicone oil represented by the following formula (I) ▲ Numerical formula, chemical formula, table, etc.▼... (I) (n = 3 to 2500) , the following formula (II) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(II) (In the formula, R^1 and R^3 are each a hydrogen atom or a methyl group, and R^2 is a carbon number of 1 to 18. Alkyl group, R^4 and R^6 are each an alkylene group having 1 to 4 carbon atoms, R^5
is a hydrogen atom, a methyl group or an ethyl group, and P/Q is a molar ratio of 1/9 to 8/2. ) and a polymer having an average molecular weight of 20,000 to 1,000,000, and the silicone oil is emulsified and dispersed therein.