JPH01175924A - Hair treatment agent - Google Patents

Abstract

PURPOSE:To obtain a hair treatment agent effective in preventing especially damage of hair and restoring the damaged hair, by using a hydrolyzed protein and an anionic polymer as essential components. CONSTITUTION:The objective agent is produced by compounding (A) 0.5-60wt.% of hydrolyzed protein, (B) 0.02-5.0wt.% of an anionic polymer, (C) a nonionic surfactant, an oily component, a humectant, a thickener, etc., and, as necessary, (D) an antiseptic, an antioxidant, a metal sequestering agent, an ultraviolet absorber, water, perfumery, etc. The agent has the form of powder, liquid, cream, etc. The hydrolyzed protein is selected from the hydrolyzed products of collagen, keratin, silk protein and elastin, and the anionic polymer is selected from xanthan gum, carrageenan, sodium alginate, pectin, etc. The hydrolyzed protein improves the permeation, adsorption and fixing of the components to the hair and the anionic polymer promotes the permeation and adsorption of the components to the hair.

Description

[Detailed Description of the Invention] Moxibustion Wai Q Dan Sen [Field of Industrial Application] The present invention relates to a hair treatment agent, in particular, a hair treatment agent that prevents hair damage,
The present invention also relates to a hair treatment agent for treating damaged hair.

[Prior Art] Hair is damaged by physical and chemical causes such as shampooing, brushing, hair drying, perming, hair coloring, etc., and the structure of the hair surface is destroyed.

This destruction causes split ends and hair toning, and proteins, which are the constituent components of the hair, are eluted from the broken parts by treatments such as shampooing, perming, and hair coloring, and gradually disappear from the hair. Thus, when proteins are eluted, hair becomes thinner and weaker. However, once hair is damaged, it cannot be restored by its own strength, and if left untreated, the damage will progress further, making it more likely to develop split ends and hair loss.

Therefore, in order to maintain beautiful and healthy hair, it is necessary to prevent damage and repair the hair when it is damaged.

Conventionally, various protein hydrolysates have been used as hair protective ingredients in hair cosmetics such as rinses and treatments for this purpose, but because they are water-soluble, they are washed away and do not have sufficient effect. I couldn't get it. Therefore, in order to increase the affinity of protein hydrolyzate to hair, it has been proposed to cationize it, that is, to make it into a quaternary ammonium derivative, or to increase its effect by increasing its concentration.

[Problems to be Solved by the Invention] However, in the former of the above improved techniques, the protein hydrolyzate is adsorbed to the surface of the hair, but is difficult to penetrate into the inside of the hair, resulting in sufficient reinforcing and restoring effects. There wasn't. Moreover, the latter has disadvantages in that it is too concentrated and produces an unpleasant odor and is expensive. However, the odor problem could be solved by turning it into powder, but it was not economical as it required a large amount to be used to achieve the reinforcing and restoring effect.

Therefore, conventional hair treatment agents have advantages and disadvantages, and there has been no one that has little odor, is low cost, and has sufficient effects as a hair treatment.

Therefore, the present invention aims to solve the above-mentioned problems.It has little odor, low temperature, and even at low cost, it can sufficiently penetrate into the inside of the hair and prevent hair damage. take revenge,
Furthermore, the present invention provides a hair treatment agent that strengthens hair and prevents damage.

[Means for Solving the Problems] That is, the gist of the present invention is a hair treatment agent characterized by containing a protein hydrolyzate and an anionic polymer.

Examples of the protein hydrolyzate used in the present invention include collagen hydrolyzate, keratin hydrolyzate, silk protein hydrolyzate, and elastin hydrolyzate. When blending, one or more of these protein hydrolysates are selected and used. The blending amount is preferably 0.5 to 60% by weight, more preferably 2% to 20% by weight.6 If it is less than 0.5% by weight, the recovery and damage prevention effect tends to decrease, and 60% by weight If the concentration exceeds 1, the increase in effectiveness is small despite the high concentration, and odor is likely to occur.

Particularly in the range of 2% to 20% by weight, significant hair damage prevention,
It has a restorative effect.

Examples of the anionic polymer include xanthan gum, carrageenan, sodium alginate, pectin, farcelan, gum arabic, gum gatchi, gum karaya, gum tragacanth, and powdered agar. When blending, one or more of these anionic polymers are selected and used.

In addition to the layer-forming effect described below, this anionic polymer has the effect of imparting conditioning effects such as feel and combability to the hair. The blending amount is preferably 0.02% by weight.
~5.0% by weight, more preferably 0.1% by weight ~1.0
Weight%. If it is less than 0.02% by weight, the repair and damage prevention effect tends to decrease, and if it exceeds 5.0% by weight, there is little increase in the effect despite the high concentration. Especially 0. 1% by weight ~ 1
．． At 0% by weight, excellent film-forming ability and conditioning effects can be expected.

Among these anionic polymers, those with particularly high effects include xanthan gum, carrageenan, sodium alginate, and pectin.

In addition, nonionic surfactants, oily components, humectants, and thickeners are used.

Examples of nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester,
Examples include polyhydric alcohol fatty acid partial ester, polyoxyethylene polyhydric alcohol fatty acid partial ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil derivative, fatty acid jetanolamide, etc. When blending, these nonionic surfactants should be used. One or more of these agents may be selected and used.

Examples of the oily component include higher fatty acids, solid paraffin, liquid paraffin, silicone oil, squalane, vaseline, ester oil, etc., and when blending, one or more of these oily components are selected and used.

Humectants include glycerin, propylene glycol,
Examples include polyethylene glycol, 1,3-butylene glycol, dipropylene glycol, sorbitol, etc., and when blending, one or more of these humectants are selected and used.

Examples of thickeners include methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, etc. When blending, one or two of these thickeners may be used.
Select and use more than one species.

Furthermore, preservatives, antioxidants, sequestering agents, ultraviolet absorbers, water, fragrances, and the like are appropriately selected and blended as necessary.

The hair treatment agent of the present invention can take various forms depending on the purpose, such as powder, liquid, and cream.

The cationic surfactants to be treated after treatment with the hair treatment agent of the present invention include tertiary aliphatic amine salts,
Examples include alkyltrimethylammonium halide, dialkyldimethylammonium halide, alkyldimethylbenzylammonium halide, etc., and one or more of these cationic surfactants are selected and used.

Of course, a single aqueous solution may be used, but various higher alcohols, oily components, humectants, thickeners, preservatives, bactericidal agents, ultraviolet absorbers, fragrances, pigments, etc. may be blended as necessary.

However, it does not need to be specially formulated, and since a general rinse or treatment usually contains a cationic surfactant, it can be used simply as a rinse or treatment. , it is sufficient to simply process the data.

These cationic surfactants promote the penetration and adsorption of protein hydrolysates and anionic polymers into the hair, and have the effect of preventing hair from tangling and squeaking due to the antistatic effect of cations.

[Action. When treated with the hair treatment agent of the present invention, the protein hydrolyzate penetrates and adsorbs into the hair because it has a high affinity for hair. At this time, the anionic polymer promotes penetration and adsorption into the hair. As a result, protein hydrolyzate in particular gathers in damaged areas of the hair, reinforcing and restoring the area, and prevents the evaporation of moisture in the hair.
Moisturizes.

Next, when the hair is treated with a cationic surfactant, the anionic polymer that has already penetrated the hair and the cationic surfactant form a kelp comb, which forms a film on the hair surface.

Therefore, the protein hydrolyzate that reinforces and repairs damaged areas of the hair is firmly held inside the hair, and can be prevented from flowing out. In this way, it is possible to sufficiently strengthen the hair.

Since the present invention is constructed as described above, the protein hydrolyzate is strongly penetrated and adsorbed into the hair, and is immobilized. Therefore, along with sufficient reinforcement and repair,
Furthermore, an anti-damage effect also occurs on undamaged hair.

[Example] Next, the present invention will be explained in detail. The present invention is not limited to these, but includes various embodiments without departing from the gist thereof.

(1) Penetration/Adsorption Comparison Test The ingredients shown in Tables 3, 5 and 6 as Examples of hair treatment agents and the ingredients shown in Table 7 as Comparative Example 1 were mixed in the proportions shown in the table. was used to observe the penetration and adsorption effects on hair.

■ Treatment method using the hair treatment agent of the example Hair bundles (A-E) collected from five people were treated with the shampoo whose formulation is shown in Table 9, and after applying the hair treatment agent of the example, the hair was washed for 1 ton. The hair was treated with a hair rinse whose formulation is shown in Table 10 without using 2M, and then washed with water and dried with a hair dryer.

■ Treatment method using a hair treatment agent (rinse) in Comparative Example In the same manner, hair strands (A-E) were treated with the shampoo whose formulation is shown in Table 9, then treated with the rinse of Comparative Example 1, then washed with water, and dried with a hair dryer. It was dried.

Evaluation method A cross section of the hair is colored by a ninhydrin reaction, and the effect of penetration and adsorption of protein hydrolyzate is observed using a Class 1JfI mirror.
evaluated. The results are shown in Table 1.

Table 1 ◎: Penetrates and adsorbs a large amount to the inside of the hair.

○: Penetrates and adsorbs to the inside of the hair.

Δ: Slightly penetrates and adsorbs inside the hair.

×: Not penetrated or adsorbed at all.

The results of Examples 3 and 4 were similar to those of Example 1.

It can be seen that the hair treated according to this example has sufficient penetration and adsorption into the hair. On the other hand, it can be seen that the hair treated according to Comparative Example 1 has insufficient penetration and adsorption.

(2) Hair strength comparison test ■ Treatment method using the hair treatment agent of the example Hair strands were soaked in the first permanent wave liquid whose formulation is shown in Table 11, washed with water, and then treated with a permanent wave whose formulation was shown in Table 12. It was treated with Wave 2 liquid and further treated with the shampoo whose formulation is shown in Table 9. After this treatment, the hair treatment agent of the example whose ingredients are shown in Tables 4, 5, and 6 was applied, and the hair was treated with the treatment whose formulation is shown in Table 13 without rinsing.

(2) Treatment method using a hair treatment agent (treatment) in Comparative Example The hair was treated with a shampoo treatment in the same manner as in the comparative example, and then treated with the treatment whose formulation is shown in Table 8.

4I interaction The yield value and breaking value were measured using a tensile tester.

The results are shown in Table 2. The relationship between elongation and load at that time is also shown in the figure.

The yield value is the point at which the hair's α-helical coil can stretch to its maximum extent, and at this point, when the applied load is removed from the hair, it can return to its natural initial state. .

Therefore, it is more appropriate to compare the strength of hair based on the yield value than based on the breaking value.

Table 2 there were.

As described above, the hair treated according to this example almost completely recovered to the yield value and breakage value of the previously treated hair, and therefore it can be seen that the reinforcing and restoring effects are extremely high. On the other hand, comparative example 2
Since the hair treated with this method is almost the same as the hair that has been damaged by permanent treatments, it can be seen that the reinforcing and repairing effects are extremely low.

Table 3 Table 4 However, when using, 2 g of this is dissolved in 20 ml of purified water.

Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 In the above examples, xanthan gum, carrageenan, sodium alginate, and pectin were used as anionic polymers. Similarly, good results were obtained for other anionic polymers (furcellan, gum arabic, gum gatchi, gum karaya, gum tragacanth, and agar powder).

[Brief explanation of the drawing]

The figure is a graph showing the relationship between elongation and load when the yield value and failure value were measured using a tensile tester.

Claims (1)

[Scope of Claims] 1. A hair treatment agent characterized by containing a protein hydrolyzate and an anionic polymer. 2. The hair treatment agent according to claim 1, wherein the protein hydrolyzate is one or more selected from collagen hydrolyzate, keratin hydrolyzate, silk protein hydrolyzate, and elastin hydrolyzate. . 3 Anionic polymers include xanthan gum, carrageenan, sodium alginate, pectin, furcellan,
The hair treatment agent according to claim 1 or 2, which is one or more selected from gum arabic, gum gatchi, gum karaya, gum tragacanth, and agar powder.