JPH0460579B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a hair dye composition, and more particularly, to a hair dye that provides good coloring of hair and has excellent shampoo resistance and light fastness. The present invention relates to a composition. [Prior art and its disadvantages] Hair dyes are required to have excellent dyeing properties on hair, good coloring and finish, and less damage to hair. Two-component oxidation dyes are widely used because they have particularly excellent dyeing properties.
This hair dye consists of, for example, a first agent containing an oxidation dye intermediate such as paraphenylene diamine as a main ingredient, and a second agent containing an oxidizing agent such as hydrogen peroxide as a main ingredient. In short, this hair dye has good storage stability because the first and second parts are mixed together just before hair dyeing, and it also uses an oxidative polymerization reaction, so it has very good dyeability on hair. Are better. However, although this hair dye has excellent hair dyeing power, it generally causes significant damage to the hair, and the dyed finish and finish of the hair are also poor. Furthermore, there is a drawback that the fastness after hair dyeing is poor. Therefore, in order to improve these drawbacks, it has been proposed to incorporate medicinal ingredients or ingredients that alleviate irritation to the hair and scalp into hair dyes, but each of these ingredients may cause hair damage. Although it is somewhat effective in preventing or improving the finish,
It has almost no effect on the color finish or fastness of hair. On the other hand, compounding agents for improving the fastness of hair dyes to hair are also known, but these often have the opposite effect on hair damage. Also,
When incorporated into hair dyes, unlike ordinary hair treatment agents, they must exist stably during the oxidation reaction of the dye intermediate and exhibit their effects, which greatly limits the range of selection. That will happen. [Problems to be solved by the invention and means for solving the problem] In view of the above-mentioned circumstances, the present inventors have particularly developed a two-component oxidative hair dye that prevents hair damage and provides good dyed finish and finish, as well as shampoo resistance and light resistance. The object of the present invention is to provide a hair dye composition with excellent color fastness, and the object of the present invention is to provide a hair dye composition containing 0.001 to 5% by weight of hyaluronic acid, based on the total amount of the hair dye.
Chondroitin, chondroitin sulfate, mucoitin sulfate, caronine sulfate, chitin, α-heparin,
This can be achieved by blending one or more mucopolysaccharides selected from keratan sulfate, dermatan sulfate, and salts thereof. The present invention will be explained in detail below. The hair dye composition targeted by the present invention is usually a two-part type consisting of a first part containing an oxidative dye intermediate as a main ingredient and a second part containing an oxidizing agent as a main ingredient. Examples of the oxidation dye intermediate of the first agent include phenylenediamines, aminophenols, tolylenediamines, aminonitrophenols, diphenylamines, diaminophenylamines, N-phenylphenylenediamines, Examples include one or more selected from diaminopyridines and their salts. The amount of this oxidation dye intermediate is usually about 0.1 to 10% by weight based on the total weight of the first agent. In addition, the first agent may contain resorcin, pyrogallol, catechol, etc. as a coupler, and may also contain surfactants such as polyoxyethylene alkyl ether, polyoxyethylene alkylamine fatty acid amide, glycerin, propylene glycol, etc. Moisturizers such as lanolin, squalane, oily ingredients such as liquid paraffin, stabilizers such as sulfites and ascorbic acid, thickeners such as carboxymethyl cellulose, xanthan gum, and higher alcohols, ammonia water,
Known ingredients such as alkaline agents such as ethanolamine and fragrances may be appropriately blended. On the other hand, examples of the second agent oxidizing agent include hydrogen peroxide and urea peroxide. The second agent also includes stabilizers such as phenacetin and EDTA, oils and fats such as paraffin and higher alcohols, surfactants,
Appropriate compounding agents such as acids, PH regulators, fragrances, etc. can be added. In the present invention, it is an essential requirement that a specific mucopolysaccharide be blended into the hair dye as described above. In short, by incorporating a small amount of mucopolysaccharide into a hair dye, it not only prevents damage to the hair during hair dyeing, but also improves the dyeing properties of the hair dye. This improves robustness. Although the reason why such excellent effects of the present invention are obtained is not clear, mucopolysaccharides have a structure that allows them to bind to the keratin protein of the hair or to be easily adsorbed to the hair surface through interaction. When the dye enters the inside of the swollen hair, mucopolysaccharides are adsorbed in the gaps in the hair epidermis and combine with keratin proteins to form a thin film of organic polymer on the hair surface. This is presumed to be because it is well fixed and can be maintained for a long time. The mucopolysaccharides used in the present invention include one or more selected from hyaluronic acid, chondroitin, chondroitin sulfate, mucoitin sulfate, caronine sulfate, chitin, α-heparin, keratan sulfate, dermatan sulfate, and salts thereof. Can be mentioned. Moreover, examples of salts include sodium salts and potassium salts. These are widely present in animal tissues, especially mesenchymal tissue, and are decomposed and extracted from vitreous body, umbilical cord, chicken crest, skin, etc. as raw materials. The amount of this mucopolysaccharide added to the hair dye is 0.001% to the total amount of the hair dye.
5% by weight, preferably 0.01-3% by weight. If the blending amount is too small, the effects unique to the present invention as described above cannot be obtained, and conversely, if the blending amount is too large, the effect remains the same, which is not economical. In addition, the composition of mucopolysaccharide is the first or second agent of hair dye.
Either of these agents may be used, and in some cases both may be used, but it is usually best to include them in the first agent. Furthermore, in the present invention, it is preferable to mix an animal peptide with the above-mentioned mucopolysaccharide, since this further improves the action of the mucopolysaccharide. Examples of the animal peptides typically include collagen hydrolysates, keratin hydrolysates, and elastin hydrolysates. The amount to be blended is usually preferably 0.1 to 10 times the weight of the mucopolysaccharide. [Effects of the Invention] The hair dye composition of the present invention not only has good hair dyeing properties, but also has no damage to the hair, has a good finish, and has good shampoo resistance and light fastness. It is excellent. As described above, in the present invention, by incorporating mucopolysaccharide, the properties as a hair dye are significantly improved unexpectedly.
It is well known that mucopolysaccharides are incorporated into hair cosmetics, but when incorporated into hair dyes, they exist stably during the oxidation and polymerization of oxidation dye intermediates, preventing hair damage and improving fastness. It is surprising that two effects of improvement can be exerted at the same time. [Examples] Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the following Examples unless the gist thereof is exceeded. Example 1 The following four types of hair dye compositions [A] to [D] were prepared. [Composition A] (Product of the present invention) Part 1 P-phenylenediamine 1.0% Propylene glycol 10.0 EDTA-Na 3.0 Sodium sulfite 0.5 Sodium hyaluronate 0.1 Ammonia Make 100% with water to give pH 10.0. Part 2: Hydrogen peroxide 6.0% Make 100% with water. [Composition B] (Product of the present invention) Part 1 P-phenylenediamine 1.0% Propylene glycol 10.0 EDTA-Na 3.0 Sodium sulfite 0.5 Sodium chondroitin sulfate 0.05 Ammonia Make 100% with water to give pH 10.0. Part 2: Hydrogen peroxide 6.0% Make 100% with water. [Composition C] (Product of the present invention) Part 1 P-phenylenediamine 1.0% Propylene glycol 10.0 EDTA-Na 0.3 Sodium sulfite 0.5 Sodium mucoitin sulfate 0.2 Ammonia Make 100% with water to give pH 10.0. Part 2: Hydrogen peroxide 6.0% Make 100% with water. [Composition D] (Comparative product) Part 1 P-phenylenediamine 1.0% Propylene glycol 10.0 EDTA-Na 0.3 Sodium sulfite 0.5 Ammonia Make 100% with water to give pH 10.0. Part 2: Hydrogen peroxide 6.0% Make 100% with water. <Hair dye test example> For each of the hair dye compositions [A] to [D] above,
A hair dyeing test was carried out by mixing the first and second agents at a ratio of 1:1, applying it to the hair at room temperature, leaving it for 20 minutes, then thoroughly rinsing with warm water at 40°C and drying. The dyed finish, fastness, hair finish, hair damage and tensile strength were checked, and the results shown in Table 1 were obtained.

【table】

【table】

[Table] Example 2 Paraphenylene diamine 2.0% Resorcinol 1.0 Polyoxyethylene nonyl phenyl ether 30.0 Isopropyl alcohol 5.0 Glycerin 5.0 Sodium caronine sulfate 0.1 Ammonia Amount to give pH 9.5 Make 100% with water This cream-like hair dye The agent (first agent) was mixed with the same amount of 6% hydrogen peroxide (second agent), applied to gray hair, left at room temperature for 20 minutes, and washed with shampoo. Similarly, the hair was dyed to a solid blackish-brown color with excellent finish. Example 3 Paraphenylene diamine 2.0% Orthoaminophenol 0.5 Resorcinol 0.5 Hydroxyethyl cellulose 2.0 Isopropyl alcohol 5.0 Glycerin 5.0 Heparin 0.1 Sodium keratan sulfate 0.1 Ammonia Make up to 100% with water to give a pH of 9.5 This cream-like hair dye ( The first agent) was mixed with the same amount of 6% hydrogen peroxide (second agent), applied to gray hair, left at room temperature for 20 minutes, and then washed with shampoo, resulting in the same results as in Example 1. The hair is dyed to a strong black color with excellent dyeing and a good finish.

Claims (1)

[Scope of Claims] 1 (1) One or more mucopolymer selected from hyaluronic acid, chondroitin, chondroitin sulfate, mucoitin sulfate, caronine sulfate, chitin, α-heparin, keratan sulfate, dermatan sulfate, and salts thereof. Sugars relative to the total amount of hair dye
A hair dye composition characterized in that it contains 0.001 to 5% by weight. (2) The hair dye composition according to claim 1, which contains an animal peptide together with the mucopolysaccharide. (3) Claim 1, characterized in that the hair dye is a two-part type consisting of a first part containing an oxidation dye intermediate as a main ingredient and a second part containing an oxidizing agent as a main ingredient. hair dye composition.