JPS5832815A - Gelatinous hair dye - Google Patents

Abstract

PURPOSE:A hair dye, prepared by making the first agent containing an oxidation dye as a principal agent and the second agent containing a peroxide as a principal agent in the gel state having a specific consistency, and capable of simplifying the applicatin techniques to the hair, reducing the running, scattering and uneven dyeing and improving the storage stability of the chemical. CONSTITUTION:A gelatinous hair dye consisting of the first agent containing an oxidation dye, a stabilizer, e.g. sodium sulfite, a fat or oil, e.g. paraffin, a surfactant, water, e.g. purified water, a modifier, e.g. polyethylene glycol, an alkaline agent, e.g. aqueous ammonia, and an emulsifying agent, e.g. polyvinyl alcohol, and the second agent containing a peroxide, e.g. hydrogen peroxide, a stabilizer, e.g. phenacetin, a fat or oil, a surfactant, water, a modifier, an acid, e.g. phsophoric acid, a pH adjustor, e.g. ammonium phosphate, and an emulsifying agent. Both the first and the second agents have a consistency index of 320-450.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a hair dye in which both the first agent and the second agent are gel-like.

The first agent is an oxidation dye, which is defined as a general term for analogues of paraphenylenediamine, and the peroxide is the second agent.
Hair dyes consisting of a combination of both agents are common, but in the hairdressing industry, there are products that contain the above-mentioned main ingredients and are applied to the hair in the form of a shampoo or cream. Products that simplify the technology are being developed one after another.

Therefore, when applying the gel-like product, it is easy to paint, does not drip or splatter, and retouching and mesh dyeing techniques can be easily performed. It has many advantages, such as no uneven dyeing because it adheres to the hair, and good shelf life because it can be packed in hair.

Here, the term "gel" can be interpreted in a broad sense or a narrow sense, but in this specification, the broad sense is adopted. For example, in ``Fundamentals of Colloid Chemistry'', p. 245, lines 4 to 8 (published by Dainippon Tosho Co., Ltd., August 1, 1976), it is clearly stated that gel in a broad sense includes ``jelly, cream, paste, etc.'' In the present invention, the term is used to collectively refer to semi-solid liquids such as jelly, cream, paste, glue, and mini-dregs.

Regarding hair dyes in which both the first and second agents are gel-like,
The only known document is Japanese Patent Publication No. 47-38974 (Japanese Patent No. 704597), and similar commercially available products are likely to have only been produced by the applicant or patentee.

However, there are products in which only the first agent is cream-like and the second agent is milk-like, but the contents are different from the present application, and gel-like products for both the first and second agents are covered by the above patent. It is proprietary, and if it existed, it would be infringing on a patent and would not be legally recognized as public knowledge.

The product in which both the first and second agents are in the form of a gel has many advantages as mentioned above, and the inventors of the present invention have been using it for some time, and based on their several years of hair dye application experience, there are some problems when applying the hair dye according to the above patent. Since we have discovered that there are deficiencies, we are trying to improve upon them.

That is, the product manufactured according to the embodiments of the above-mentioned patent has pomade-like properties, as described in the specification.

When applying hair dye, it is combed evenly many times with a comb, etc., so the pomade-like hardness described above does not allow the dye to spread onto the hair, and the hair is strongly pulled. I have noticed that my scalp hurts. However, if the fluidity is high, such as liquid hair cream, on the other hand, it will become a dripping state and cannot be used. A feature of the present invention is that an appropriate viscosity between these ranges was determined based on the results of research experiments and the most favorable range was found.

For reference, Table 1 shows an example of measuring the consistency of commercially available pomades at 25°C.

Table 1 In Table 1, the viscosity is measured using a Brockfield rotational viscosity (1) L-type adapter (4.6 RPM), and the consistency is measured after 5 seconds of needle penetration as specified in JISK-2560. It is a value. As can be seen in the table above, the measurement results of viscosity and consistency do not have a fixed ratio relationship. This is because such a gel-like product has thixotropic properties, and the measured values with a rotational viscometer tend to vary widely, so it is more accurate to use the conical penetration needle method, so water washing is used in the present invention. In the device penetrometer used by the present inventor, the cup has a diameter of 20111 x depth of 12 mm, and a cone that fits this is 16 mm in diameter x 8 mm in height.Using a needle Q of 4 mm, the penetration depth is 5 seconds. Read the scale and calculate using the following formula.

Consistency index = 24 + Penetration depth scale: K 3.75 Now, the feature of the present invention is that both the first and second agents are gel-like and have a consistency that is most suitable for mixing them and hair dyeing work. After obtaining the opinions of about 20 hairdressers and about 200 patients after actual treatments, it was concluded through statistical methods that the appropriate quality is in the range of consistency index 320 to 450. When the consistency index is lower than this (that is, when it is hard), the painting process requires effort and the person receiving the treatment also complains of some pain. If it is higher than this (that is, if it is soft), it will drip and splatter during painting, making it messy.

There is also a commercially available product in which the first part is gel-like and the second part is milk-like, but in this case the two do not mix well and the product form is irregular and unsightly. In addition, this 320-450 consistency index is generally 8,000-5
Corresponds to a viscosity of 0.0OOCP.

The compositions made according to the examples of the patent and the consistencies of the commercially available products known to date are shown in Table 2.

Table 2 As is clear from Table 2, the conventional product had the same hardness as a soft pomade because it was intended to be applied to the hair, but after actually implementing it, the inventor found that an even softer product was better. I found the point.

The raw materials for the first agent are as follows.

a. Oxidation dye (contents include, for example, hair dye raw material standards compiled by the Hair Color Industry Association) b. Stabilizer (for example, sulfite) Reducing higher alcohols such as IJum, lanolin, hydrocarbons, etc.) d. Surfactant (nonionic) Surfactants, amphoteric surfactants, anionic surfactants, etc.) e Water and conditioning agents (purified water, polyethylene glycol, phlopylene gelicol, chrycerin.

(alcohol, etc.) f Alkaline agents (ammonia water, ethanolamine, inorganic alkali, carbamic acid, ammonia, etc.) g Coagulant (PVA, starch, polyvinylpyrrolidone,
Kanagiran, low polymer resin, (gum, etc.) h Other ingredients for the second agent, such as fragrance, coloring agent, and glossing agent, are as follows.

Fart l Peroxides (hydrogen peroxide, hydrogen peroxide, etc.) j Stabilizers (e.g. zenacetin, EDTA, etc.) k Fats and oils (paraffin, fatty acid glycerides, higher fatty acids, higher alcohols, waxes, etc.) l Surfactants (nonions) , amphoteric, cationic surfactants) m Water and conditioning agents (purified water, ethylene glycol, polyethylene glycol, alcohol, etc.) n Acid and P
H regulator (phosphoric acid, citric acid, ammonium phosphate, etc.) 0 Coagulant (PVA MC starch, polyvinylpyrrolidone, low polymer resin, etc.) p Other fragrances, colorants, gloss agents, etc. Q: Manufacture gel-like dyes
When preparing the mixture, it is necessary to carefully consider the time-lapse destruction of the water-oil separation gel, and the addition of a coagulant is an especially important improvement point.

Example (first agent formulation) Paraphenylenediamine 0.2wt% Aminophenol 0.8 Nitroparaphenylenediamine 0.82-amino-4nitrophenol 0.2 Resorcinol 05 Strong aqueous ammonia 10.0 Anhydrous sodium sulfite 1゜Polyethylene glycol
12.0 polyvinyl alcohol 1.0 lanolin 2.0 cetanol
8.0 Vaseline
15. .

Polyoxyethylene cetyl ether 5.0 Sorbitan monostearate 25 Laralin sodium sulfate
10 fragrances
02 Purified water 3
98 Total 1000 (2nd agent combination) 35% hydrogen peroxide +6. OwtTiphosphoric acid 05Ammonium phosphate 0.5Phenacetin
01 polyethylene glycol 7.5 polyvinyl alcohol 10 cetanol
80 Vaseline 20
0 Polyoxyethylene cetyl ether 90 Cetylpyridinium bromide 2.5 Methyl phenyl polysiloxane 01 Purified water 34
8:: Total 1000 (11) The above first and second agent components were prepared to obtain each cream-like product of the present invention.

Its consistency index is as follows.

1st agent 3765 2nd agent 3915 For the purpose of hair dyeing, for women, 1st agent 20g1 2nd agent
Agent 20.9 was mixed, painted, drained and washed for 30 minutes, and a beautiful chestnut brown color was obtained. The mixing of the internal polishing was smooth and the hair washing process did not cause any discomfort to the user.

Although gel hair dyes have many excellent properties,
Compared to the jump type, it is not possible to add a large amount of water in the formulation and the raw material costs are high, but the present invention has the advantage that it has become possible to reduce the raw material cost to some extent.

Patent applicant: Sokagaku Kogyo Co., Ltd. (’+2) Manual correction (voluntary) Showa era (February 7th Ip. Chief Palace of the Government Office 2. Name of the invention 3. Person who makes corrections Relationship to the case Patent applicant ) 4. Subject of correction Specification Part of detailed description of the invention 5. Contents of correction As below on next page The 4th line of page 5 is corrected as follows.

Therefore, in the present invention, water droplets are used. ,■■5K28
0.9 is Ensui diameter 651 chuu x height 292 hoshin 150
However, if the number of test specimens is small, the following phrase is inserted between lines 10 and 11 of page 12 of the present inventor.

The product of the present invention also exhibits characteristics as a pet hair dye. In other words, dogs and cats strongly dislike hair dyeing using a set of shampoos, and it is appropriate to treat them with a cream-like hair dye.
Because bed hair is delicate, the consistency range of the present invention is optimal. Note that the dye in this case is not necessarily limited to the substances specified for dyeing.

that's all Applicant: Sokagaku Kogyo Co., Ltd.

Claims (1)

[Scope of Claims]: A first part consisting of an oxidation dye, a stabilizer, an oil and fat surfactant, water, a conditioning agent, an alkali agent, and a coagulant and having a consistency index of 320 to 450, a peroxide, and a stabilizer. Consisting of agents, oils and fats, surfactants, water, regulators, acids, PH regulators, and coagulants, and has a consistency index of 320~
A gel-like hair dye consisting of a second agent of 450.