JPH06298626A - Deodorization treating agent for perming - Google Patents

Abstract

PURPOSE:To obtain a hair deodorization treating agent for perming excellent in deodorizing properties. CONSTITUTION:This hair deodorization treating agent for perming is composed of a zinc hydroxy-carboxylate. Unpleasant smell is reduced during perming without deteriorating the waving effects by pretreating the hair with the hair deodorization treating agent before the perming.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing agent for hair which is used in the permanent wave treatment of hair. More specifically, the present invention relates to a deodorizing agent for hair, which has an excellent deodorizing effect without inhibiting the permanent wave effect.

[0002]

2. Description of the Related Art Permanent wave agents are prepared by adding a basic substance such as ammonia, monoethanolamine or triethanolamine to an aqueous solution containing a reducing agent such as thioglycolic acid, ammonium thioglycolate, or cysteine as a main ingredient and adjusting the pH to 7.5. 9.5 to 9.5 is used as one agent, and two aqueous solutions of oxidizers such as sodium bromate and hydrogen peroxide are used.
It is used as an agent. The mechanism of wavy hair using these permanent wave agents is to first apply the first agent to the hair wound around a rod or curler,
A mercapto group is generated by reducing and cleaving the disulfide bond of cystine contained in the keratin protein in the hair, and then a second agent is applied to the hair to oxidize the mercapto group and regenerate the disulfide bond in the hair. , To fix the wave.

Thus, the permanent wave drug is
Since it contains a reducing agent and an oxidizing agent as main components, treating the hair with these agents not only causes chemical changes in the hair and damages the hair, but also causes a peculiar discomfort derived from the mercapto group of the hair. It is said that the odor remains on the hair for several days. Furthermore, the strong unpleasant odor generated during the permanent wave treatment, which is derived from thioglycolic acid and ammonia contained in the first agent, has been bothering the practitioner and the subject for many years.

Many deodorants are known in all fields at present, but most of them are not effective for deodorizing the strong ammonia and mercaptan odors (derived from thioglycolic acid) during the permanent wave. However, effective ones have drawbacks such as less waviness, hair damage, and strong skin irritation when subjected to permanent wave treatment, and most of them are deodorants even when used during permanent wave treatment. Not suitable. For example, JP-A-5
Japanese Patent Laid-Open No. 6-39011 proposes a deodorizing composition (1) composed of a suspension of zinc carbonate as a deodorant that reduces axillary odor without suppressing sweat secretion. In addition, JP-A-6
JP-A-2-34565 contains at least one of a zinc compound such as zinc chloride and a copper (divalent) compound such as copper sulfate as an active ingredient as a deodorant excellent in removing household odors such as toilets and refrigerators. A deodorant (2) has been proposed.

Further, as a deodorant for improving the unpleasant odor during the permanent wave treatment and the unpleasant odor remaining after the treatment, for example, JP-A-58-49888 and JP-A-3-95113 disclose: A deodorant (3) composed of a keratin hydrolyzate and its derivative has been proposed.

[0006]

However, in the deodorizing composition of (1), granular zinc carbonate remains on the hair after the permanent wave treatment or hair dyeing, which not only contaminates the hair but also causes damage to the hair. , Not suitable as a deodorizing agent for permanent wave. The deodorant (2) is unsuitable as a deodorant treatment agent during permanent wave because of its toxicity and skin irritation. The deodorant (3) has drawbacks such that it has a peculiar odor and that the deodorizing effect of ammonia is insufficient. In view of the above points, an object of the present invention is to prevent a permanent wave effect (hereinafter, abbreviated as a wave effect) from occurring, and to have excellent deodorant properties and high safety, a deodorant treatment agent for permanent wave (hereinafter, a hair for perm). It is intended to provide a deodorant treatment agent).

[0007]

As a result of intensive studies, the present inventors have found that the above object can be achieved by using a specific compound during the permanent wave treatment, and arrived at the present invention. That is, the present invention is a deodorant treatment agent used in the case of permanent wave, which is a hair deodorant treatment agent for permanent wave, which comprises a zinc compound (A) of an organic acid.

In the present invention, examples of the zinc salt (A) of an organic acid used in the hair deodorizing agent for perms include:
Zinc salt (A1) of aliphatic monocarboxylic acid having 1 to 20 carbon atoms (acetic acid, propionic acid, caprylic acid, oleic acid, ascorbic acid, etc.), aliphatic dicarboxylic acid having 1 to 20 carbon atoms (succinic acid, maleic acid) , Fumaric acid, adipic acid, azelaic acid, etc.) zinc salt (A2), carbon number 1 to
20 aliphatic oxycarboxylic acids (glycolic acid, lactic acid,
Zinc salt (A3) of malic acid, tartaric acid, citric acid, gluconic acid, etc., Zinc salt of aromatic carboxylic acid having 1 to 20 carbon atoms (benzoic acid, phthalic acid, etc.) (A4), 1 to 2 carbon atoms
Zinc salt of aromatic oxycarboxylic acid having 0 (salicylic acid, etc.) (A5), zinc salt of aromatic oxysulfonic acid having 1 to 20 carbon atoms (eg, paraphenol sulfonic acid) (A5)
Examples thereof include zinc salts of organic acids such as 6), double salts or complex salts thereof, and mixtures thereof. Among them, (A1), (A
2) and (A3) are preferable, and (A3) is particularly preferable.
Among (A3), one or more zinc salts selected from the group consisting of glycolic acid, lactic acid, malic acid, tartaric acid, and citric acid are preferable because of their high water solubility. The amount of (A) used is usually 0.1 to 20% by weight, and preferably 0.5 to 5% by weight in the treating agent. If it is less than 0.1% by weight, the deodorizing effect is small, and if it exceeds 20% by weight, permanent wave is hindered.

In the present invention, if necessary, another deodorant (B) having less skin irritation and high safety can be used in combination.
Examples of (B) include one or more substances obtained from natural products (plants and animals) and having a deodorizing effect, and specific examples thereof include plants (tea leaves, cherry leaves, etc.).
Extract (solvent extract, hot extract, etc.) and the like. The amount of (B) used is usually 0.1 to 10 in the treating agent.
% By weight, preferably 0.5-5% by weight.
If it is less than 0.1% by weight, the deodorizing effect is small, and if it exceeds 10% by weight, the deodorizing property is saturated and the economy is poor.

The deodorizing agent for perming hair of the present invention can be used by the following method when applying permanent wave to hair. 1) The deodorant of the present invention is used by mixing it with a permanent wave agent in advance. 2) Used as a pretreatment agent for the permanent treatment. 3) Used as a post-treatment agent after perm treatment. Among the methods exemplified above, the preferred method is the method used as the pretreatment agent in 2).

As the method 2), the treatment agent of the present invention can be used alone as a pretreatment agent by dissolving and dispersing it in a solvent such as water. Further, a hair conditioning component (C) for preventing hair damage. ). Examples of (C) include anionic polymers (C
1), a cationic polymer (C2), a nonionic polymer (C3), a water absorbent resin (C4) and the like. (C
Specific examples of 1) include polysaccharides such as xanthan gum and pectin; celluloses such as sodium carboxymethyl cellulose; methyl vinyl ether-maleic anhydride half ester copolymers, vinyl acetate-crotonic acid copolymers, (meth) ) Carboxyvinyl polymers such as copolymers with acrylic acid- (meth) acrylic acid ester. Specific examples of (C2) include poly (N, N′-dimethyl-3,3-methylenepiperidinium chloride),
Examples thereof include hydroxyethyl cellulose dimethyldiallylammonium chloride. Specific examples of (C3) include, for example, polyvinylpyrrolidone, vinylpyrrolidone-
Examples thereof include vinyl acetate copolymers and alkylene oxide adducts of (polyhydric) alcohols. Specific examples of (C4) include crosslinked polyacrylates having a water absorption of pure water of 50 to 1,000 ml / g, starch / polyacrylate graft products, polyvinyl alcohol / polyacrylic acid graft products, and the like. To be Among these, (C1) and (C4) having a carboxyl group in the molecule are preferable because they have a great effect of preventing damage to hair during the permanent wave treatment.

Further, in the present invention, if necessary, other component (D) such as a dispersant, a thickener, a surfactant, an antioxidant, an ultraviolet absorber, a bactericide, a fungicide, a fragrance, a dye and the like may be added. It can be blended. The amount of each of the components (C) and (D) used is about 0 to 3% by weight based on the total components of the hair treatment agent.

The hair odor eliminating agent for perm of the present invention is prepared by dissolving and dispersing each of the components (A) to (D) in water (for example, pure water, ionized water, etc.), and further adjusting the pH to 4. 0
It is manufactured by adjusting it to about 8.5.

Next, the method of using the deodorizing agent for hair for perm of the present invention as a pretreatment agent will be described by way of example when cold perming is applied. 1) After shampooing, dry hair is wiped off with a dry towel, and the hair is wrapped around a rod or a curler, and 10 to 100 ml of the deodorizing agent for perm of the present invention is applied to the hair with a dropper or the like. 2) Permanent wave medicine first agent 30 to 100 ml
Is applied to the hair wrapped with a dropper. 3) If necessary, cover the wrapped hair with a cap or the like, and leave it for 0.5 to 30 minutes. 4) 30-200 ml of two permanent wave agents are applied on the wound hair and left for 5-15 minutes, and then the rod or caller is removed. 5) Rinse hair with hot water and blow dry, brush or finish by hand. The amount of the deodorizing agent for hair for perming of the present invention used is appropriately adjusted depending on the odor level of one permanent wave agent.

[0015]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited thereto. In the following, parts and% mean parts by weight and% by weight. The hair evaluation and test methods used in Examples and Comparative Examples are shown below.

(1) Sensory evaluation of odor After coating 4 g of a hair deodorizing agent for perm on 5 g of hair (human hair), the following permanent weight was applied at 30 ° C. according to a conventional method.
The odors of ammonia and mercaptan after each step of perming treatment were sensory-evaluated according to the following criteria according to the following criteria: 1 agent (5 g) and 2 agents (5 g) were sequentially treated. <5-step standard> 1: Odor that is hardly perceivable 2: Odor that can be perceived at last 3: Odor that can be perceived immediately 4: Strong odor 5: Intense odor (1 agent) Ammonium thioglycolate 6.0 (%) Monoethanolamine 0.8 Water-soluble lanolin 0.3 Hair-retaining oil agent Emmacol N 3.0 [Sasaki Kagaku (manufactured)] 〃 Emmacol S 5.0 [Sasaki Kagaku (manufactured)] Ethylenediaminetetraacetic acid salt 0.5 Purification Water residue ------------------------------------------------ Total 100.0

(2 agents) Sodium bromate 6.0 (%) Lanolin / squalene emulsion (50% product) 3.0 Purified water Residual ----- −−−−−−−−−−−−−−−− Total 100.0

(2) Wave Efficiency A hair bundle of 60 hairs (human hair) (about 0.1 g) is wound around and fixed on a dedicated rod made of plastic in a spiral shape (wavelength (pitch interval) 10 mm) with a constant tension. Next, in accordance with a conventional method, at 30 ° C., one agent (1 g) and two agents (1 g) of the above permanent wave drug are sequentially treated, and the hair is washed with water and dried. After drying, the average wavelength L (mm) of the hair was measured, and the wave efficiency was calculated from the following formula (Fragrance Journal Extra Number No. 5 (1984) P. 421-4).
25). Wave efficiency (WE;%) = (10 / L) × 100

Examples 1 to 4; Comparative Examples 1 and 2 Hairs were treated with different types of perm hair deodorizing agents,
Then, a perm treatment was carried out by the method described above, and the odor levels of ammonia odor and mercaptan odor were checked by sensory evaluation. The wave efficiency was determined by the above method. The results are shown in Table 1.

[0020]

[Table 1] [Note] 1. The composition of the deodorizing agent is as follows. A: 3% aqueous solution of zinc citrate. B: 5% aqueous solution of zinc glycolate. C: An aqueous solution prepared by dissolving 3 parts of zinc lactate and 0.5 part of the cherry tree leaf ethanol extract in 96.5 parts of ion-exchanged water. D: An aqueous solution prepared by dissolving 3 parts of zinc malate and 0.5 part of sodium carboxymethyl cellulose in 96.5 parts of ion-exchanged water. E: 3% zinc sulfate aqueous solution. As is clear from Table 1, even when the agent for deodorizing hair for perm of the present invention is used in combination with a permanent wave agent, unpleasant odors (ammonia odor and thiol) generated during permanent wave treatment do not decrease the wave effect. (Mercaptan odor of glycolic acid) is reduced (especially, the effect of reducing the intense irritating odor of ammonia during the treatment of permanent wave 1 agent is great).

Example 5 1 g of a 3% aqueous solution of zinc citrate as a deodorizing agent was sampled in a 200 ml Erlenmeyer flask, and 1 g of an aqueous solution of trimethylamine (3,000 ppm) as a malodorous substance was added to it. After vigorous stirring, the odor of the headspace was measured with a detector tube [Gastech's direct-reading gas sampler] after leaving it in a hot water bath at 30 ° C for a predetermined time, and the deodorization rate of trimethylamine was calculated from the following formula. I asked. Deodorization rate (%) = (A−B) / A × 100 where A is the amount of odor in the headspace when 1 g of water is added instead of a 3% aqueous solution of zinc citrate as a deodorizing agent. B: Shows the amount of odor in the headspace when the deodorizing agent is added. Next, the malodorous substance was changed to an ethanol solution of methyl mercaptan (50 ppm), and the deodorizing rate of methyl mercaptan was obtained from the above formula by the same method. Example 6 The method of Example 1 was repeated using 5% zinc glycolate as a deodorizing agent. Table 2 shows the results of measuring the deodorizing rate of the malodorous substances obtained in Examples 5 and 6.

[0022]

[Table 2]

As is apparent from Table 2, the deodorizing agent for hair for perm of the present invention is also excellent in deodorizing odorous substances such as trimethylamine and methyl mercaptan. Particularly, trimethylamine is almost completely deodorized in a short time. To do.

[0024]

The hair deodorizing agent for perms of the present invention alleviates unpleasant odors (ammonia odor and mercaptan odor of thioglycolic acid) generated during permanent wave treatment, without inhibiting the wave effect. , Reduce. The hair deodorizing agent for perms of the present invention is particularly excellent in deodorizing ammonia, which is harmful to physical health, and meets the expectations of both permanent wave practitioners and non-practitioners. It can be said that the value is very high.

Claims (3)

[Claims] 1. A deodorizing agent for use in permanent wave, which comprises a zinc salt (A) of an organic acid and is used for permanent wave. 2. The treating agent according to claim 1, wherein (A) is a zinc salt of an oxycarboxylic acid. 3. The treating agent according to claim 1, wherein (A) is one or more zinc salts selected from the group consisting of glycolic acid, lactic acid, malic acid, tartaric acid and citric acid.