JPH01216913A - Shampooing agent - Google Patents

Abstract

PURPOSE:To obtain a shampoo having excellent rising effect, high safety and low stimulation, by using a sulfosuccinic acid derivative, a water-soluble polymer containing quaternary nitrogen and, as necessary, a hydrolyzed collagen as essential components. CONSTITUTION:The objective shampoo contains (A) 0.1-20wt.% (preferably 0.5-15wt.%) of a compound of formula [M1 and M2 are cation derived from H, alkali metal, NH4 and alkanolamine; A is OC2H4 or OCH2C(CH3)H; x is 1-15; m and n are 1-14; m+n is 9-15], (B) 0.01-2wt.% of a quaternary nitrogen-containing water-soluble polymer preferably having a molecular weight of 2,000-3,000,000 and an N-content of 0.2-5wt.% at a B/A ratio of 0.05-10 and, as necessary, (C) 0.1-10wt.% (preferably 0.5-5wt.%) of hydrolyzed collagen having an average molecular weight of 5,000-25,000. It gives a shampoo and dried hair having excellent softness and smoothness and the combing property of the hair can be remarkably improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to shampoos, and more particularly to mild detergent compositions having excellent rinsing effects and high safety.

Prior art and its problems Conventional shampoos include anionic active agents such as alkyl sulfate salts, polyoxyethylene alkyl ether sulfate salts, and α-olefin sulfonates; nonionic active agents such as fatty acid alkylolamide; alkyl betaine type, alkyl amide; Surfactants such as betaine type, alkylimidazolinium betaine type, and alkylamine oxide type amphoteric active agents are used alone or in combination.

However, conventional shampoos containing the above-mentioned surfactants cause the hair to become tangled and have a strong squeaky feeling when washed or washed, and also make the hair dry and dry, resulting in poor hair manageability. In addition, the comb is difficult to comb.
There are also problems such as hair flies.

The quaternary nitrogen-containing water-soluble polymer forms a complex salt with an anionic surfactant or an amphoteric surfactant, and this complex salt precipitates during hair washing or rinsing and is adsorbed on the hair surface. Therefore, in order to improve the feeling of use of shampoo, it has been proposed to add a quaternary nitrogen-containing water-soluble polymer.

However, such shampoos are highly irritating to the conjunctiva and iris, and the complex salts cannot be easily removed by simple washing with water, so if they come into contact with the eyes, they cause long-term irritation. Further, generally, a complex salt formed by a combination of a quaternary nitrogen-containing water-soluble polymer and an anionic activator has a low effect on improving the feeling of use because the amount of precipitation during hair washing or pampas grass is not sufficient.

On the other hand, with conventionally used sulfosuccinates containing linear alkyl groups, complex salts precipitate and the amount of adsorption to the hair is too large, resulting in build-up of complex salts on the hair, resulting in hair stiffness and hair stiffness. The comb becomes difficult to comb. In addition, in the case of amphoteric active agents, the precipitation phenomenon of the complex salt of the amphoteric active agent and the quaternary nitrogen-containing water-soluble polymer is greatly affected by pH, so when trying to obtain a sufficient amount of precipitation, there are constraints on dosage form design. There is.

As a result of intensive studies in view of the above problems, the present inventors found that
It was discovered that by combining the quaternary nitrogen-containing water-soluble polymer with a monoalkyl sulfosuccinic acid derivative having a branched alkyl group, a shampoo that is safe for the skin and mucous membranes and has an excellent rinsing effect can be obtained, and the present invention was developed. I was able to complete it.

Means for solving the problems, that is, the present invention, comprises (a) a sulfosuccinic acid derivative represented by the formula [I] below.
．． 1 to 20% by weight, and (b) 0.01 to 2% by weight of a quaternary nitrogen-containing water-soluble polymer, and the ratio b/a between (a) and (b) is 0.00.
The present invention provides a shampoo agent characterized in that it has a molecular weight of 5 to 10.

The sulfosuccinic acid derivative blended into the shampoo of the present invention has the following formula [1]:

% formula % [wherein Ml and Mt are each independently hydrogen, alkali metal, NH, or alkanol X is an integer of 1-15;
m and n are integers from 1 to 14, and m+n is from 9 to 1
5).

Examples of such sulfosuccinic acid derivatives include Softanol MES-3 and Softanol MES-12 (manufactured by Nippon Shokubai Chemical Co., Ltd.).

To obtain this derivative, as disclosed in JP-A-54-24818, maleic anhydride and alcohol are reacted to produce a highly pure maleic acid monoalcohol ester, and then, as disclosed in JP-A-54-24818, It can be obtained by sulfonation according to the method disclosed in Japanese Patent No.-24825. In addition, propylene oxide is used instead of ethylene oxide in the reaction of formula [I].

The amount of the sulfosuccinic acid derivative in the composition is 001 to 2.
0% by weight, preferably 0.5-15% by weight. If the blending amount is less than this, the amount of complex salt adsorbed to the hair will be small, making it impossible to exhibit a sufficient rinsing effect. On the other hand, if the amount exceeds this range, the amount of complex salt adsorbed to the hair is too large, and a build-up phenomenon of the complex salt occurs, making it impossible to obtain a sufficient rinsing effect.

Next, the quaternary nitrogen-containing water-soluble polymer, which is another component blended into the shampoo of the present invention, includes quaternary nitrogen-containing cellulose ether, quaternary nitrogen-containing starch, and quaternary nitrogen-containing poly(trichloride). alkylaminoethyl methacrylate) and quaternary nitrogen-containing polyvinylpyrrolidone,
Examples include polymers of diallyl quaternary ammonium salts, quaternary nitrogen-containing guar gum, quaternary nitrogen-containing polypeptides, quaternary nitrogen-containing chitin, and quaternary nitrogen-containing silicon, and one or two of these A mixture of the above can be used. The molecular weight of these quaternary nitrogen-containing water-soluble polymers is preferably 2000 to a, ooo, ooo,
Further, the nitrogen content is preferably 0.2 to 5%.

Such quaternary nitrogen-containing water-soluble polymers can be produced by a method of reacting a water-soluble polymer with a quaternary nitrogen-introducing agent, or by
A method of polymerizing a graded product or quaternizing it during polymerization (see JP-A-57-116006 and JP-A-58-158799)
It can be manufactured by In this case, water-soluble polymers include cellulose ether, starch, polyvinylpyrrolidone, and the like. Examples of the quaternary nitrogen introducing agent include glycidyltrimethylammonium halide and 3-halogeno-2-hydroxypropyltrialkylammonium halide.

Therefore, specific examples of these quaternary nitrogen-containing polymers include quaternary nitrogen-containing polyvinylpyrrolidone represented by Gaffcoat #756 (manufactured by Gaff Co., Ltd.), Polymer JR-
125, quaternary nitrogen-containing cellulose ether derivatives represented by JR-400 and J R-30M (manufactured by Union Carbide), polyethyleneimine represented by Evomin P-1000 (manufactured by Nippon Shokubai Chemical Co., Ltd.), and Marquat 100. .550 (manufactured by Merck & Co.), Cellcoat H6G,
Dimethyldiallylammonium chloride derivatives represented by L2θ0 (manufactured by National Starch), water-soluble cationic polymers of tetraethylpentamine and shrimp chlorohydrin represented by Nalcoro 00 (manufactured by Nalco Chemical), Sumifloc (manufactured by Sumitomo Chemical) ), quaternary nitrogen-containing poly(trialkylaminoethyl methacrylate) derivatives represented by Jaguar C-13S (manufactured by Mayhall), and Cosmediag 3C-261 (manufactured by Henkel). Guar gum, β-methacryloxyethyltrimethylammonium derivatives represented by Retin 220 (manufactured by Vercules), Bromois w-52
Examples include quaternary nitrogen-containing polypeptides typified by Q (manufactured by Akufu Kasei Co., Ltd.).

The amount of these quaternary nitrogen-containing water-soluble polymers incorporated into the shampoo composition is 0.01 to 2% by weight. If the blending amount is less than 0.01%, the complex salt precipitation effect is not sufficient and the rinsing effect is difficult to be achieved.On the other hand, if the blending amount exceeds 2% by weight, a build-up phenomenon occurs due to excessive adhesion of the complex salt to the hair, causing hair damage. It causes a "stiff feeling" or a dry feeling.

Furthermore, in the shampoo composition of the present invention, the ratio (b)/(a) between the sulfosuccinic acid derivative (a) and the quaternary nitrogen-containing water-soluble polymer (b) is 0.005 to 1O. If the blending ratio is smaller than o or oos, the complex salt formed will be solubilized, making it impossible to sufficiently precipitate the complex salt, resulting in insufficient rinsing effect. on the other hand,
If it exceeds 10, the amount of complex salt adsorbed on the hair surface is too large, and a build-up phenomenon of the complex salt occurs, making it impossible to obtain a sufficient rinsing effect.

The shampoo composition of the present invention further has an average molecular weight of 1150
00-25000. Preferably +t t o o o
.

By blending high molecular weight hydrolyzed collagen with a molecular weight of ~25,000, the rinsing effect is improved and hair becomes more manageable. Those with a hydrolyzed collagen content of less than 5,000 have low affinity with hair and cannot be expected to improve the rinsing effect. In addition, the effect of alleviating irritation is small.

The blending amount is preferably 0.1-10%, more preferably 0.5-5%. Such hydrolyzed collagen is obtained by biochemically treating animal connective tissue, for example, GEL.
Examples include ITA-9QL C (manufactured by Gerita).

Other ingredients added to the composition of the present invention include anionic, cationic, nonionic, and amphoteric surfactants, fragrances, pigments, preservatives, UV absorbers, antioxidants, and pH! 11. Known components of shampoo compositions, such as conditioners, medicinal agents, hydrotropes, cooling agents, plant extracts, pearlizing agents, viscosity modifiers, etc., may be added to the extent that the effects of the present invention are not impaired. good.

Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples.

Shampoo preparations were prepared using the compositions shown in Table 1 in a conventional manner. Table 1 shows the results of evaluating each shampoo using the methods shown below.

[Test method]

(1) Flexibility and smoothness = 20g, length approximately 10c
Hair strands of x were soaked in 10% shampoo solution for 50 minutes at 40℃ for 2 hours.
After soaking for a minute, 450 MQ of 40°C water is mixed to make it uniform, and then the hair bundle is taken out and washed with water. 20℃, 65RH%
Let dry overnight. Similarly, the control was treated with a shampoo containing no quaternized nitrogen-containing water-soluble polymer.

Panelist (N・5) tactile test at 20°C and 65RH%
More than ×: People who feel suppleness and smoothness compared to the control are 2 Å
Below (2) Comb length = 109, length 10cm hair bundle as above (1
) was processed in the same way. Then, under conditions of 20° C. and 65 RH%, the force applied to the flat comb when uncombing is measured using a measuring device in which the flat comb is fixed to a strain gauge. Controls were the same as above.

○: The applied force is 10% or more less than the control.

×: Others (3) Hair fly = 309, after the hair bundle with a length of 20C1t was treated as described above, it was left at 20°C and loRH% for 12 hours or more. Immediately after brushing the hair 10 times with a nylon brush, the spread of the tip of the hair bundle is measured.

0: Within 15 x m X: Greater than 151 m (4) Skin-primary irritation test: 10 male Hartley white guinea pigs constitute one group. A batch test bandage coated with 0.1 cc of a 25% aqueous solution of the sample is applied to the stinging area for 24 hours.

After removal, the sample is wiped off and judged according to the following criteria 1 hour, 24 hours and 48 hours later.

Judgment criteria (stimulus intensity): No macroscopic change - Mild erythema Moderate erythema 10-intensity erythema and edema ++ 〇 Number of cases with 2 stimulus intensities of 10 or more is 4 or less X: Coefficient of stimulus intensity of 10 or more is 5 (5) Eye mucosa secondary irritation test 2 Three Japanese white rabbits were used as one group. A sample 50% aqueous solution is administered at 0 and 1 cc into the lower eyelid, and then observed 1.4.24.48.72 hours later and 4 days and 7 days later.

Judgment criteria: According to Draize's eye irritation evaluation score table.

The average total score after 087 days is less than 15 points. The average total score after X days is 15 points or more. Effects of the Invention According to the shampoo of the present invention, the hair after washing and drying is rich in suppleness and smoothness, and the hair is free from static electricity generation. Hair fly phenomenon is prevented and combability is noticeably improved.
Shows excellent rinsing effect.

In addition, it is extremely safe and causes very little irritation to the skin and eyes.

Patent applicant: Sunstar Co., Ltd.

Claims (2)

[Claims] (1) (a) The following formula: ▲There are mathematical formulas, chemical formulas, tables, etc.▼ [I] [In the formula, M_1 and M_2 are each independently a cation derived from hydrogen, an alkali metal, NH_4, or an alkanolamine; A is -OC_2H_4- or ▲There are mathematical formulas, chemical formulas, tables, etc.▼; 1 to 20% by weight,
and (b) contains 0.01 to 2% by weight of a quaternary nitrogen-containing water-soluble polymer, and the ratio b/a between (a) and (b) is 0.00.
A shampoo agent characterized by having a rating of 5 to 10. (2) The shampoo agent described in item 1 above, which contains hydrolyzed collagen having an average molecular weight of 5,000 to 25,000.