JP2014125454A - Hair treatment agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair treatment agent that is mixed in a first agent for curly hair correction, thereby preventing a viscosity decrease causing the first agent to drip from the hair.SOLUTION: The hair treatment agent contains nonionic polysaccharides, and is used on the hair surface, or mixed with the first agent for curly hair correction before their application to the hair.

Description

  The present invention relates to a hair treatment agent used for curly hair straightening treatment for bringing hair having a wave shape or the like close to a straight line. Specifically, the hair treatment agent is applied to hair before curly hair straightening treatment or a reduction agent blended with a reducing agent. The present invention relates to a hair treatment agent used by mixing with the first hair straightening agent.

  In the permanent wave treatment that imparts a wave shape to the hair and the permanent treatment that performs straightening treatment, the first permanent agent containing a reducing agent is applied to the hair and the second permanent hair containing an oxidizing agent. In general, the coating is performed. The hair disulfide bond is cut by the reducing action of the first permanent agent, and the hair disulfide bond is formed by the oxidizing action of the second permanent agent. These reduction and oxidation are the principle in the permanent treatment that deforms the hair shape, and the permanent treatment that accompanies a chemical reaction tends to damage the hair.

  In order to reduce hair damage during the permanent treatment, a pretreatment agent applied before the permanent treatment may be used. Patent Document 1 discloses an example of a pretreatment agent that is applied to hair before performing a hair straightening treatment, and further applying a first agent for straightening hair after applying the pretreatment agent to hair. Is disclosed (see Example 6 of Patent Document 1). As disclosed in Patent Document 1, in the case of using a pretreatment agent, it is usual to apply the first agent for permanent after the pretreatment agent is applied. That is, the pretreatment agent and the first permanent agent are mixed on the hair surface.

JP 2011-173871 A

  By the way, the first agent for straightening hair is generally higher in viscosity than the first agent for permanent wave. This is because, in the curly hair straightening treatment that does not require the first hair straightening agent to be applied to the hair wound around the rod, it is desired to suppress dripping of the applied first hair straightening agent from the hair. . Under such circumstances, it is not desirable that the pretreatment agent applied to the hair before the first agent for straightening curly hair easily causes the first agent to sag. In addition, a use mode in which the first agent for straightening hair is diluted and then applied to the hair is also conceivable. If the fluidity of the first agent for straightening hair mixed with other agents is significantly higher than before mixing, It tends to sag from the hair.

  In view of the above circumstances, an object of the present invention is to provide a hair treatment agent that can suppress a decrease in viscosity that causes the first agent to sag from the hair by mixing with the first agent for straightening hair.

  As a result of intensive studies by the present inventors, it has been found that if a nonionic polysaccharide is blended with the first agent for curly hair straightening, viscosity reduction caused by the mixing can be suppressed, and the present invention is completed. It came to do. That is, the hair treatment agent according to the present invention contains a nonionic polysaccharide and is used on the hair surface or mixed with the first agent for straightening hair before being applied to the hair. It is characterized by. Here, “curly hair straightening” in the present invention is to bring a wave-like hair close to a straight line, and is a concept including both treatment using a quasi-drug and treatment using cosmetics.

  The hair treatment agent according to the present invention may contain a cationic polymer, and preferably contains a cationic polysaccharide. By blending a cationic polymer with a nonionic polysaccharide, the viscosity of the hair is reduced and the soft feel of the hair after straightening treatment and the feel of repaired hair (feel that a film is formed on the hair surface) It becomes good.

  The viscosity of the first agent for straightening hair mixed with the hair treatment agent according to the present invention is preferably 4000 mPa · s or more and 30000 mPa · s or less.

  According to the hair treatment agent according to the present invention, since the nonionic polysaccharide is blended, it is possible to suppress a decrease in viscosity that causes the first agent for straightening hair to sag from the hair.

Based on the hair treatment agent which concerns on embodiment of this invention, this invention is demonstrated below.
The hair treatment agent according to this embodiment is a nonionic polysaccharide blended in water (the blending amount of water is, for example, 70% by mass or more). Moreover, you may mix | blend suitably with the raw material mix | blended with the known pretreatment agent for permanents for the hair treatment agent of this embodiment as an arbitrary raw material.

(Nonionic polysaccharide)
The hair treatment agent of the present embodiment includes one or two kinds selected from known nonionic polysaccharides such as hydroxypropyl starch phosphate, hydroxyethyl cellulose, hydroxypropyl cellulose, tamarind seed gum, tara gum, locust bean gum, guar gum and the like. The above is blended.

  The blending amount of the nonionic polysaccharide in the hair treatment agent of the present embodiment should be appropriately set, and is, for example, 1% by mass or more and 8% by mass or less.

(Optional raw material)
As described above, the hair treatment agent of the present embodiment may be blended as an arbitrary raw material as appropriately selected from the raw materials blended in the known permanent pretreatment agent. The raw materials are nonionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant, polymer compound, silicone, hydrocarbon, wax, higher alcohol, polyhydric alcohol, fatty acid, fat, ester oil, protein Amino acids, chelating agents, anti-inflammatory agents, preservatives, perfumes and the like.

  When a cationic polymer is blended in the hair treatment agent of this embodiment, the hair after straightening has a soft feel and a repair feeling (feel that a film is formed on the hair surface). Become.

Examples of the cationic polymer include polyquaternium-4 (hydroxyethylcellulose dimethyldiallylammonium chloride) and polyquaternium-10 (O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose chloride).
Cationized cellulose such as guar hydroxypropyltrimonium chloride, cationized guar gum such as hydroxypropyl guar hydroxypropyltrimonium chloride; cationized locust bean gum; cationized cassia; polydimethylmethylenepiperidinium chloride such as polyquaternium-6; Dimethyl diallylammonium acrylamide copolymers such as polyquaternium-7 and polyquaternium-52; vinylpyrrolidone and methylvinylimidazolium copolymers such as polyquaternium-16; and the like; cationized cellulose, cationized guar, cationized locust bean It is preferable to incorporate a cationic polysaccharide such as gum or cationized cassia. One or two or more kinds of cationic polymers may be blended, and the amount of the cationic polymer in the hair treatment agent of this embodiment is, for example, 0.1% by mass or more and 1% by mass or less.

  Moreover, when making the hair treatment agent of this embodiment into a cream form, it is good to mix | blend a higher alcohol and a cationic surfactant, for example.

  The higher alcohol may have 14 to 22 carbon atoms, for example, linear saturated alcohols such as myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol; Saturated alcohols; branched saturated alcohols such as hexyl decanol, octyl decanol, isocetyl alcohol, isostearyl alcohol; One or two or more higher alcohols may be blended, and the blending amount of the higher alcohol in the hair treatment agent of this embodiment is, for example, 2% by mass or more and 8% by mass or less.

  Examples of the cationic surfactant include dilong-chain alkyldimethylammonium salts such as distearyldimethylammonium chloride, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride; behenyltrimethylammonium chloride, behenyltrimethylammonium methosulfate, stearyl. Mono long-chain alkyltrimethylammonium salts such as trimethylammonium chloride, stearyltrimethylammonium bromide, cetyltrimethylammonium bromide; long-chain alkoxyalkyltrimethylammonium salts such as stearoxypropyltrimethylammonium chloride; “Chain alkyl” means a linear or branched alkyl group having 8 or more carbon atoms. From the viewpoint of feel the number of carbon atoms thereof to impart to a system as the suppression or hair skin irritation at 16 to 22.). One or two or more cationic surfactants may be blended, and the amount of the cationic surfactant in the hair treatment agent is, for example, 1% by mass or more and 5% by mass or less.

(Form)
The dosage form at the time of use of a hair treatment agent is not specifically limited, Cream form, a gel form, etc. are mentioned. The viscosity in the case of a cream type is, for example, 4000 mPa · s or more and 40000 mPa · s or less after 60 seconds measured at 25 ° C. using a rotor selected according to the viscosity in a B-type viscometer.

(PH)
When used as a pretreatment agent for straightening hair, the pH of the hair treatment agent of this embodiment is preferably 2.5 or more and 8.0 or less, and preferably 3.0 or more and 7.0 or less. If it is this pH range, it is suitable for suppression of hair damage. Moreover, the pH in the case of mixing with the first agent for straightening hair before applying to hair is, for example, 11.0 or less, and preferably 4.0 or more and 10.0 or less.

(how to use)
Like the known pretreatment agent for straightening hair, the hair treatment agent of this embodiment may be applied to the hair before applying the first agent for straightening hair in the straightening treatment. In this usage mode, the first agent for straightening hair is continuously applied, so the hair treatment agent of this embodiment and the first agent for straightening hair are mixed on the hair surface. .

  Moreover, another use aspect of the hair treatment agent of this embodiment in a curly hair straightening process mixes this hair treatment agent with the 1st agent for curly hair straightening, and is apply | coated to hair.

  The curly hair straightening treatment is a cold curly hair straightening treatment without heating with a two-component hair straightener, a warm hair straightening treatment with heating at 60 ° C. or less with a two-component hair straightening agent, Any of the hair straightening treatments using a high-temperature ironing device of about 180 ° C. with a two-component hair straightening agent may be used.

  The first agent for straightening hair may be a mixture of a reducing agent, an alkaline agent, and an optional raw material. Examples of the reducing agent to be added include thioglycolic acid, thioglycolate (ammonium thioglycolate, monoethanolamine thioglycolate), L-cysteine, L-cysteine hydrochloride, DL-cysteine, DL-cysteine hydrochloride, N- Acetyl-L-cysteine, cysteamine, thiolactic acid, thioglycerin, and lactone thiol. Examples of the alkaline agent include ammonia and amino alcohol (monoethanolamine, triethanolamine, isopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, and the like). , Basic amino acids (such as arginine), morpholine, carbonates (such as ammonium carbonate, ammonium bicarbonate, sodium carbonate, sodium bicarbonate), phosphates (such as ammonium monohydrogen phosphate, sodium monohydrogen phosphate), caustic (Potassium hydroxide, sodium hydroxide). Optional raw materials include, for example, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, polymer compounds, silicones, hydrocarbons, waxes, higher alcohols, polyhydric alcohols, fatty acids, fats and oils, Examples include ester oils, proteins, amino acids, chelating agents, anti-inflammatory agents, preservatives, and fragrances. The pH of the first agent is, for example, 11.0 or less alkaline, and preferably 8.0 or more and 10.0 or less.

  In addition, the dosage form of the first agent for correcting curly hair preferably has a cream shape suitable for application to hair and suppression of dripping after application. The viscosity of the first agent is preferably 4000 mPa · s or more and 30000 mPa · s or less after 60 seconds measured at 25 ° C. using a rotor selected according to the viscosity in a B-type viscometer.

  The second agent for straightening hair may be a mixture of an oxidizing agent and an optional raw material. The oxidizing agent to be blended is, for example, bromate (sodium bromate, potassium bromate, etc.) or hydrogen peroxide. Optional raw materials include, for example, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, polymer compounds, silicones, hydrocarbons, waxes, higher alcohols, polyhydric alcohols, fatty acids, fats and oils, Examples include ester oils, proteins, amino acids, chelating agents, anti-inflammatory agents, preservatives, and fragrances. The pH of the second agent is, for example, 5.0 or more and 8.0 or less when blending bromate, and is 2.0 or more and 4.0 or less, for example, when blending hydrogen peroxide. is there.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not interpreted limitedly based on description of this Example.

(Examples 1a to 1c, Comparative Examples 1a to 1f)
Raw material selected from water and hydroxypropyl starch phosphate, hydroxyethyl cellulose, tamarind seed gum, xanthan gum, carboxyvinyl polymer, cationized cellulose, cationized guar gum, sodium carboxymethylcellulose, highly polymerized polyethylene glycol (90M), and sodium hydroxide The gel-like hair treatment agents of Examples 1a to 1c and Comparative Examples 1a to 1f were prepared (the mixing concentrations of the raw materials blended with water are as shown in Table 1 below). The hair treatment agent of Comparative Example 1f blended with highly polymerized polyethylene glycol (90M) was an agent with stringiness.

(Suppression of viscosity reduction)
Whether the viscosity reduction of the first agent for straightening hair can be suppressed, the first agent for straightening straight hair ("Richio Granfe VD-H first agent" manufactured by Milbon) and Examples 1a to 1c or Comparative Examples The hair treatment agents 1a to 1f were mixed in a container at a mass ratio of 1: 1 and confirmed according to the following criteria.
○: The mixture did not become liquid.
X: The mixture became liquid.

  Table 1 below shows the raw materials and amounts blended with water for the production of the hair treatment agents of Examples 1a to 1c and Comparative Examples 1a to 1f, and the evaluation results of “suppression of viscosity reduction”.

  As shown in Table 1 above, it can be confirmed that Examples 1a to 1c containing nonionic polysaccharides were excellent in suppressing the decrease in viscosity.

(Examples 2a to 2j)
Water, hydroxypropyl starch phosphate, cationized guar gum, cationized locust bean gum, cationized cassia, polyquaternium-6, polyquaternium-52
Xanthan gum, sodium carboxymethylcellulose, polyvinylpyrrolidone, highly polymerized polyethylene glycol (90M), polyoxyethylene lauryl ether, cetyltrimethylammonium chloride, cetostearyl alcohol, aminoethylaminopropylmethylsiloxy acid / dimethylsiloxane copolymer, isopropanol, phenoxyethanol The creamy hair treatment agents of Examples 2a to 2j were prepared by blending raw materials selected from chelating agents and fragrances (the blending concentrations of the raw materials blended with water are as shown in Table 2 below).

  Regarding the hair treatment agents of Examples 2a to 2j, “suppression of viscosity reduction” was confirmed in the same manner as in Example 1. In addition, the hair treatment agents of Examples 2a to 2j were subjected to a hair straightening treatment using the pretreatment agent for straightening hair, and the “softness” and “repair feeling” of the hair after the treatment were evaluated. The details of the curly hair straightening treatment and the evaluation after the treatment are as follows.

(Hair straightening treatment)
About 1 g of the hair treatment agent of any of Examples 2a to 2j is applied to a hair bundle (about 2 g, wavy black hair of about 40 cm) washed with shampoo and wiped with a towel, and the hair after this application The bundle was treated with a two-part hair straightener. In this treatment, a commercially available first agent for straightening hair (“Rissio Granfe VD-H first agent” manufactured by Milbon) and a second agent for straightening hair (“Rissio Grandfe second agent” manufactured by Milbon) In addition, the treatment procedure using the two-component hair straightener was performed as follows: about 2 g of a hair straightener was applied to the hair bundle and left for about 20 minutes. Next, the hair was stretched using a hair straightening iron (plate setting temperature: 180 ° C.) having a pair of plates capable of holding the hair bundle, and the second hair straightening hair of about 2 g. After applying the agent, it was left for 5 minutes, washed with water and dried.

(soft)
Four evaluators evaluated whether the hair bundle after a curly hair straightening process was a soft touch. Here, Example 2a was used as a reference, and each evaluator evaluated according to the following score criteria.
1 point: feel softer than the standard 0 point: softness equivalent to the standard -1 point: feel softer than the standard

(Repair feeling)
Four evaluators evaluated whether it was the touch in which the film was formed in the hair surface in the hair bundle after a curly hair correction process. Here, Example 2a was used as a reference, and each evaluator evaluated according to the following score criteria.
1 point: feel that the film is formed on the hair surface than the reference 0 point: feel that the film is formed on the hair surface to the same extent as the reference -1 point: the reference is that the film is formed on the hair surface Feel

  Table 2 below shows the raw materials and amounts blended with water for the production of the hair treatment agents of Examples 2a to 1j, and the evaluation results of “suppression of viscosity reduction”.

Claims (4)

Contains nonionic polysaccharides,
A hair treatment agent which is used on the hair surface or mixed with a first agent for straightening hair before being applied to hair.   The hair treatment agent according to claim 1, wherein a cationic polymer is blended.   The hair treatment agent according to claim 2, wherein a cationic polysaccharide is blended as the cationic polymer.   The hair treatment agent according to any one of claims 1 to 3, wherein the first agent for straightening hair has a viscosity of 4000 mPa · s or more and 30000 mPa · s or less.