JPH0560805B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a shampoo composition, more specifically, a shampoo composition containing an amidoamine type amphoteric surfactant, a branched quaternary ammonium salt, and a cationic polymer, which improves the suppleness and smoothness of hair after washing. The present invention relates to a shampoo composition that has excellent combability during blow-drying, and has extremely excellent conditioning effects such as ease of hair clumps and ease of combing the hair after drying. [Prior Art] Amidoamine-type amphoteric surfactants are extremely mild surfactants with low irritation to the skin and eye mucous membranes, and are used as bases for detergents. A shampoo containing this amidoamine type amphoteric surfactant as a base and containing a cationic polymer has excellent smoothness and softness of hair after washing. [Problems to be Solved by the Invention] However, these shampoos become sticky during the process of drying the hair, making it difficult to comb through the hair, and as the hair dries, a complex of surfactant and cationic polymer is formed. There was a problem that the tsukusu solidified, causing hair fries and stiffness. Therefore, while taking advantage of the hypoallergenic properties of amidoamine-type amphoteric surfactants, it has excellent softness and ease of passing through the hair after washing, and also reduces the stickiness during the drying process that is characteristic of shampoos containing cationic polymers. Improved shortcomings such as stiffness. A shampoo with excellent conditioning effects has been desired. [Means for Solving the Problems] In order to solve the above-mentioned drawbacks, the present inventors conducted intensive research and found that a cationic polymer and a branched quaternary ammonium salt were combined in an amidoamine type amphoteric surfactant. The above-mentioned shampoo composition suppresses the stickiness during the drying process and the stiffness of the hair after drying, which are the disadvantages of the shampoo composition, and also makes the hair more supple and smooth after washing, and the above-mentioned amidoamine type amphoteric surfactant. The present invention has been completed based on the discovery that storage stability can be improved by using a product from which contaminant inorganic salts have been removed by desalting. That is, the present invention comprises the following components (A), (B) and (C) (A) 0.1 to 25% by weight of the following general formula () or () [In the formula, R ₁ and R ₃ each represent a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, and R ₂ and R ₄ represent a group -
CH ₂ COOM or -CH ₂ CH ₂ COOM (where M represents an alkali metal or alkanolamine)
and R ₅ is hydrogen or a group -CH ₂ COOM or -CH ₂ CH ₂ COOM (M has the meaning described above)] One or more amidoamine type amphoteric surfactants represented by , desalted so that the amount of contaminant inorganic salts in the shampoo composition is 1% by weight or less, (B) 0.05 to 4% by weight of the following general formula () or () [In the formula, R ₆ is (a)

A branched alkyl group represented by [Formula] (where R ₁₂ represents a methyl group or an ethyl group, and m represents a number such that the total number of carbon atoms in the alkyl group is 8 to 16) and (b) CH ₃ ( _-CH2 )-
A mixture of straight chain alkyl groups represented by _o (where n is a number from 7 to 15), whose branching rate (a)/
Indicates a group in which [(a) + (b)] is 10 to 100% by weight,
R ₇ and R ₈ represent a benzyl group, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 1 to 3 carbon atoms, R ₉ and R ₁₀ represent an alkyl group having 2 to 12 carbon atoms, and R ₁₁ is the base

One or more branched quaternary ammonium salts represented by [Formula] or an alkyl group having 1 to 3 carbon atoms, and X ^- represents a halogen ion or an organic anion, (C) 0.05 to 2% by weight One or two cationic polymers selected from the group consisting of cationized cellulose derivatives, cationic starch, copolymers of diallyl quaternary ammonium salt and acrylamide, quaternized polyvinylpyrrolidone derivatives, and polyglycol polyamine condensates. The present invention provides a shampoo composition containing seeds or more as a main component. Among the amidoamine type amphoteric surfactants which are component (A) of the present invention, preferred specific examples of those represented by the general formula () include N-lauroyl-
N'-carboxymethyl-N'-(2-hydroxyethyl)ethylenediamine, N-lauroyl-
N'-carboxyethyl-N'-(2-hydroxyethyl)ethylenediamine, N-myristoyl-
N'-carboxymethyl-N'-(2-hydroxyethyl)ethylenediamine, N-myristoyl-
N'-carboxyethyl-N'-(2-hydroxyethyl)ethylenediamine, N-palmitoyl-
N'-carboxymethyl-N'-(2-hydroxyethyl)ethylenediamine, N-palmitoyl-
Examples include salts such as N'-carboxyethyl-N'-(2-hydroxyethyl)ethylenediamine. Preferred specific examples of those represented by the general formula () include N-lauroyl-N-(2-hydroxyethyl)-N'-carboxymethylethylenediamine, N-lauroyl-N-(2-hydroxyethyl)-N ′,N′-bis(carboxymethyl)
Ethylenediamine, N-lauroyl-N-(2-
hydroxyethyl)-N',N'-bis(carboxyethyl)ethylenediamine, N-myristoyl-
N-(2-hydroxyethyl)-N'-carboxymethylethylenediamine, N-myristoyl-N
-(2-hydroxyethyl)-N', N'-bis(carboxymethyl)ethylenediamine, N-myristoyl-N-(2-hydroxyethyl)-N',
N'-bis(carboxyethyl)ethylenediamine, N-palmitoyl-N-(2-hydroxyethyl)-N'-carboxymethylethylenediamine, N-palmitoyl-N-(2-hydroxyethyl)-N',N'-bis Salts such as (carboxymethyl)ethylenediamine and N-palmitoyl-N-(2-hydroxyethyl)-N',N'-bis(carboxyethyl)ethylenediamine are mentioned. In addition, these salts tend to contain inorganic salts as impurities, which impairs the storage stability of the composition.
Excluding some or all of these inorganic salts, the amount of contaminant inorganic salts in the final liquid cleaning composition is 1% by weight.
It is necessary to use a desalted amidoamine type amphoteric surfactant having the following (hereinafter simply expressed in %): Among the components (B) of the present invention, the quaternary ammonium salt represented by the general formula () is usually synthesized using an oxo alcohol having 8 to 16 carbon atoms as a raw material. Examples include dialkyldimethylammonium salts, dialkylmethylhydroxyethylammonium salts, and dialkylmethylbenzylammonium salts having an alkyl group derived from alcohol. Counter ions for these ammonium salts include halogen ions such as chlorine, iodine, and bromine, and methosulfate, ethosulfate, metophosphate,
Organic anions such as ethophosphate can be mentioned. In the general formula (), the alkyl group R ₆ has a total number of carbon atoms of 8 to 16 (a)

[Formula] (R ₁₂ represents a methyl group or ethyl group) and (b) CH ₃ (-CH ₂ )- _o , and the branching rate of R ₆ (a)/(a)+
(b) is determined from the branching rate of the oxo alcohol used as a raw material, and is generally preferably 10 to 100%, particularly preferably 10 to 50%. In addition, the total number of carbon atoms in the alkyl group R ₆ is 8
-16, but those with a certain distribution are preferred, and those with the following distribution are particularly preferred. C _{3 to 11} : 5% or less C ₁₂ : 10 to 35% C ₁₃ : 15 to 40% C ₁₄ : 20 to 45% C ₁₅ : 5 to 30% C ₁₆ : 5% or less Branching represented by general formula () A particularly preferable example of the quaternary ammonium salt has 8 carbon atoms.
-16 and a dialkyldimethylammonium chloride having an alkyl group _R6 with a branching rate of 10-50%. Among the components (B) of the present invention, the branched quaternary ammonium salt represented by the general formula () has, for example, 8 carbon atoms.
~28 Guerbet alcohol

〔Effect of the invention〕

The shampoo composition of the present invention provides excellent suppleness and smoothness of hair after washing, is free from stickiness during blow-drying, and is easy to comb.
Furthermore, the hair does not feel stiff after drying, and has excellent conditioning effects such as ease of bundling and ease of combing. [Examples] The present invention will be specifically explained below with reference to Examples, but the present invention is not limited to these Examples. Note that the amidoamine type amphoteric surfactants used in the following examples are as follows, unless otherwise specified.
The composition was desalted so that the amount of contaminant inorganic salts in the entire composition was 1% by weight or less. In addition, the test methods examined in the examples are as follows. (1) Sensory evaluation 20 g (length 15 cm) of healthy Japanese female hair was tied into a bundle, 1 g of shampoo was applied to the hair bundle, lathered for 1 minute, rinsed with running water for 30 seconds, and then towel-dried. The wet hair bundle was evaluated for stickiness and softness according to the following criteria. Evaluation Stickiness Softness ◎ Not sticky, smooth - ○ Not sticky Soft △ Slightly sticky Slightly soft × Sticky Not soft (2) Comb comb 30g of human hair at 40℃ 10c.c. shampoo composition aqueous solution (concentration 10%) for about 30 seconds, then rinsed with running water for 1 minute, wringed it out, set it on a strain gauge, and measured the force applied at that time with a comb (displayed as "wet"). In addition, after washing human hair with running water and squeezing it to dry with a hair dryer, it was left in a constant temperature and humidity room at 25°C and 65% relative humidity overnight, and then set on a strain gauge and measured the force applied when combing it with a comb. ”). The smaller the load value, the better the combing. (3) Hair fly When evaluating the dry state of ``Kushi Dori'', visually observe changes in the state of hair due to static electricity. ○ Hair flies do not occur at all. × 〃 is accepted. (4) Storage stability The shampoo composition was stored at 40°C, and its appearance was visually observed and evaluated as follows. ○ Those that change little over time (turbidity is observed throughout the solution, but no precipitate is formed at the bottom of the container) × Those that change significantly over time (no precipitation occurs at the bottom of the storage container) Example 1 Shampoo compositions having the compositions shown in Table 1 were prepared and evaluated for sensory evaluation, combability, and hair frying. The results are shown in Table 1. The formulation composition in Table 1 indicates the weight percent of the composition, and each composition contains the following components in addition to these. Lauric acid diethanolamide 3% Fragrance Small amount Water Total 100 Mixed shampoo composition stock solution PH 7.0

【table】

[Table] Example 2 A shampoo composition having the following composition was prepared, and a hair washing test was conducted on 10 long-haired women for sensory evaluation. The results are shown in Table 2. Shampoo A (product of the present invention): N-lauroyl-N'-carboxymethyl-
N'-(2-hydroxyethyl)ethylenediamine sodium salt 15 (%) Lauric acid diethanolamide 3 Cationic polymer (Polymer JR-400; manufactured by Union Carbide) 0.3 2-Dodecylhexadecyltrimethylammonium chloride 0.2 Preservative 0.1 Fragrance 0.4 Pigment Trace amount Water balance (PH7.0) Shampoo B (comparison product): N-lauroyl-N'-carboxymethyl-
N'-(2-hydroxyethyl)ethylenediamine sodium salt 15 (%) Lauric acid diethanolamide 3 Cationic polymer (Polymer JR-400; manufactured by Union Carbide) 0.3 Preservative 0.1 Fragrance 0.4 Pigment Trace amount Water Balance (PH7.0)

[Table] Examples 3 to 6 The shampoos shown below all had low irritation to the skin, and the texture of the hair after washing was very good. (Example 3) Shampoo: N-lauroyl-N-(2-hydroxyethyl)
-N',N'-bis(carboxyethyl)ethylenediamine sodium salt 12% by weight Polyoxyethylene (2.5) lauryl ether sulfate sodium salt 5 Lauric acid diethanolamide 3 Cationic polymer (Marquat 550, Merck & Co.) 0.2 2-decyl Tetradecyltrimethylammonium chloride 0.2 Preservative 0.1 Flavor, color (appropriate amount) Water Total 100 balance (Example 4) Shampoo: N-lauroyl-N'-carboxymethyl-
N'-(2-hydroxyethyl)ethylenediamine triethanolamine salt 3% by weight Lauryl sulfate triethanolamine salt
15 Lauric acid diethanolamide 2 Cationic polymer (Polymer JR-400; manufactured by Union Carbide) 0.6 Dialkyldimethylammonium chloride (branching rate 20%) 0.1 Preservative 0.1 Fragrance, pigment (appropriate amount) Water Total 100 (Example 5) Dandruff: N-lauroyl-N'-carboxymethyl-
N'-(2-hydroxyethyl)ethylenediamine triethanolamine salt 18% by weight Polyoxyethylene (2.5) lauryl ether sulfate triethanolamine salt 5 Pyractone auramine (Octopirox) 1 Cationic polymer (Polymer JR-400 ; manufactured by Union Carbide) 0.1 2-Dodecylhexadecyltrimethylammonium chloride 0.2 Methylcellulose 0.3 Preservative 0.1 Flavor, pigment (appropriate amount) Water Total 100 (Example 6) Shampoo: N-lauroyl-N-(2-hydroxyethyl)
-N',N'-bis(carboxymethyl)ethylenediamine sodium salt 0.8% by weight Polyoxyethylene (3.0) lauryl ether sulfate sodium salt 18 Cationic polymer (Gaffcoat 755N, Gaff Co.) 0.4 2-Dodecylhexadecyltrimethylammonium chloride 0.3 Preservative 0.1 Pearlizing agent 5 Fragrance, pigment (appropriate amount) Water Total 100 Example 7 Shampoo compositions having the compositions shown in Table 3 were prepared and evaluated for sensory evaluation, combability, hair frying, and storage stability. The results are shown in the same table.
In addition, the formulation composition in Table 3 indicates the weight % in the composition.

【table】

【table】

Claims (1)

[Scope of Claims] 1. The following components (A), (B) and (C) (A) 0.1 to 25% by weight of the following general formula () or () [In the formula, R ₁ and R ₃ each represent a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, and R ₂ and R ₄ represent a group -
CH ₂ COOM or -CH ₂ CH ₂ COOM (where M represents an alkali metal or alkanolamine)
and R ₅ is hydrogen or a group -CH ₂ COOM or -CH ₂ CH ₂ COOM (M has the meaning described above)] One or more amidoamine type amphoteric surfactants represented by , desalted so that the amount of contaminant inorganic salts in the shampoo composition is 1% by weight or less, (B) 0.05 to 4% by weight of the following general formula () or () [In the formula, R ₆ is (a)
A branched alkyl group represented by [Formula] (where R ₁₂ represents a methyl group or an ethyl group, and m represents a number such that the total number of carbon atoms in the alkyl group is 8 to 16) and (b) CH ₃ − ( _CH2 ) _−o
(where n represents a number from 7 to 15), whose branching rate is (a)/
Indicates a group in which [(a) + (b)] is 10 to 100% by weight,
R ₇ and R ₈ represent a benzyl group, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 1 to 3 carbon atoms, R ₉ and R ₁₀ represent an alkyl group having 2 to 12 carbon atoms, and R ₁₁ represents a group [formula] or an alkyl group having 1 to 3 carbon atoms, and X ^- represents a halogen ion or an organic anion], (C) 0.05 to 2 % by weight of a cationic polymer derived from the group consisting of cationized cellulose derivatives, cationic starch, copolymers of diallyl quaternary ammonium salts and acrylamide, quaternized polyvinylpyrrolidone derivatives and polyglycol polyamine condensates. Or a shampoo composition containing two or more types as main ingredients.