JP2009057335A - Permanent wave second agent and hair treatment agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a permanent wave second agent and a hair treatment agent that enhance a setting feeling and a hand touch feeling of a permanent wave and retain the effects for long hours. <P>SOLUTION: The permanent wave second agent comprises sodium carboxymethyldextran. Treatment with the permanent wave second agent followed by treatment with a hair treatment agent comprising a cationic compound permits enhancement of the setting feeling and the hand touch feeling of a permanent wave and retention of such effects for long hours. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a permanent wave second agent used for forming a permanent wave on hair, and a hair treatment agent used after treating hair with the permanent wave second agent. The present invention relates to a permanent wave second agent and a hair treatment agent that can improve the feel (condition) and maintain the effect for a long time.

  As a hair treatment / beauty treatment, various treatments involving chemical reactions such as permanent wave treatment, hair color treatment, bleach treatment (decolorization treatment) and the like are performed. Among them, the permanent wave treatment is (1) an alkaline solution containing a reducing agent as a main component is applied to the hair as a permanent wave first agent, wound around a rod or the like to obtain a desired wave, or left for a certain period of time, Or (2) After applying water or the like to the hair and winding it around a rod or the like, apply the permanent wave first agent and leave it for a certain period of time to cleave the disulfide bond of keratin in the hair. Then, the permanent wave second agent mainly composed of an oxidizing agent such as sodium bromate and hydrogen peroxide is used to rebond the disulfide bond at a new position and fix the wave. This treatment is a method for obtaining a semi-permanent wave-like deformation different from the hair before treatment (for example, Non-Patent Documents 1 and 2).

  In recent years, there has been a hair color boom, and the frequency of bleaching or color processing with bleaching has increased. This bleaching treatment decolorizes the hair by decomposing melanin pigments in the hair with hydrogen peroxide, and is different in the nature of damage to the hair from the permanent wave treatment that undergoes reduction and oxidation processes. is there.

  Various treatments involving chemical reactions such as permanent wave treatment, hair color treatment, and bleach treatment as described above will be repeated, but with this, the damage to the hair becomes severe, and wave formation by permanent wave treatment will occur. The reality is that it becomes difficult. In fact, in the hairdressing and beauty salon, the habit of applying hair color treatment to brightly decolored hair is spreading, and the target wave cannot be obtained in the permanent wave treatment, and the permanent agent of the permanent wave first agent is used. In addition, there is a problem that only the hair damage proceeds due to the action of the reducing agent.

  As a result, the moisture retention, flexibility, and smoothness of the hair surface are lost, resulting in a decrease in the hair's firmness and firmness, rustling, split ends, and broken hair, and the gloss and feel of the hair are impaired. There has been a problem that good permanent waves cannot be obtained on the hair due to a decrease in physical properties and feel.

  In particular, as a problem when a permanent treatment is applied to hair damaged by a hair color treatment or the like, the hair tends to be excessively dried. If the hair dries excessively, the feeling of unity will worsen and cause spreading. In addition, excessively dry hair is worried about dryness and wrinkles, and is in very poor condition.

Various techniques for avoiding such problems have been proposed. For example, Patent Document 1 proposes that a cationic compound such as cationized cellulose is added to the permanent wave second agent in order to increase the flexibility of hair. In addition, in order to improve the state of damaged hair, a hair treatment method using a complex effect by ions has also been proposed. As such a method, a two-component treatment method (for example, Patent Document 2) and three agents are proposed. An expression processing method (for example, Patent Document 3) has been proposed.
"SCIENCE OF WAVE", edited by Japan Permanent Wave Liquid Industry Association, Shin Beauty Publishing Co., Ltd., April 10, 2002, pp. 20-64 "TOMOTOMO August issue", "I thought I was going to wear it, but the permanent permeated immediately ... Why? ”Written by Shinji Tateya, Shin Beauty Publishing Co., Ltd., 2005, pp. 77-79 JP 57-31605 A JP 2001-192325 A Japanese Patent Laying-Open No. 2005-067795

  Due to the recent trend of hair color, there are so many hair color hairs, the damage of the hair due to the action of the alkaline agent and the reducing agent of the permanent wave 1st agent is very severe, and the hair is excessively dried. This is a situation where the sense of unity declines and styling becomes difficult. In addition, excessively dried hair is worried about dryness and wrinkles, and the condition becomes worse. Therefore, realization of a hair treatment agent or the like that exhibits performance capable of avoiding these problems is required.

  Under such circumstances, various proposals have been proposed for the permanent and cosmetics proposed so far, which contain ingredients that suppress hair damage, etc., and their effects are also being demonstrated. It was inadequate for sustaining the unity of the waves.

  For example, as shown in Patent Document 1, a permanent agent that improves various conditions by blending cationic cellulose or the like as a cationic polymer has been proposed. The problem of long-lasting persistence has not been resolved.

  In addition, as shown in the above-mentioned Patent Document 2, in a two-agent type application, it relates to a cosmetic (however, a treatment) in which the first agent contains carboxymethyl dextran sodium and the second agent contains a cationic substance. Technology has been proposed, but no consideration is given to the effect on permanent waves. Furthermore, regarding the proposal related to the three-component hair cosmetic composition as shown in Patent Document 3, the good condition can be maintained, but the sense of unity of the permanent wave is not considered, and The sense of unity and the feel of the wave style are insufficient.

  The present invention has been made under such circumstances, and its purpose is to improve the sense of unity and feel of the permanent wave, and to maintain the effect for a long time. It is to provide two agents and a hair treatment agent.

  The permanent wave second agent of the present invention that has achieved the above object is a second agent used for permanent wave treatment, and has a gist in that it contains sodium carboxymethyldextran. .

  In the permanent wave second agent of the present invention, the ratio of the carboxymethyl dextran sodium to the entire permanent wave second agent is preferably 0.01 to 10% by mass.

  On the other hand, the hair treatment agent of the present invention that has achieved the above object is a hair treatment agent that is applied to the hair after being treated with the permanent wave second agent as described above, and the hair treatment agent The agent has a gist in that it contains a cationic compound.

  In the hair treatment agent of the present invention, the cationic compound is preferably at least one of a cationic surfactant and an amino-modified silicone. As the cationic surfactant, stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride and the like can be preferably used. Furthermore, the proportion of the cationic compound in the entire hair treatment agent is preferably about 0.5 to 10% by mass.

  In the present invention, by adding carboxymethyl dextran sodium to the permanent wave second agent, it is possible to improve the unity and feel of the permanent wave, and after treating with the permanent wave second agent, the cationic compound is added to the permanent wave second agent. By using the contained hair treatment agent in combination, the effect of the second agent is synergistically improved and the condition of the hair surface is improved, and these effects can be sustained for a long time.

  The present inventors have studied specific means for improving the feeling of unity of waves and the feeling of touch of wave styles from various angles. As a result, by adding carboxymethyl dextran sodium to the permanent wave second agent, it is possible to improve the sense of unity and feel of the permanent wave, and after treating with the permanent wave second agent, the cationic compound is added to the permanent wave second agent. By using the contained hair treatment agent in combination, the effect of the second agent is synergistically improved and the condition of the hair surface is improved, and it is found that these effects can be sustained for a long time. Was completed.

  The permanent wave second agent of the present invention contains carboxymethyl dextran sodium, which is contained in the first agent of a two-part cosmetic (treatment). This is already known (Patent Document 2). However, the effect of the permanent wave unity has not been confirmed, and the permanent wave unity can be improved even if it is treated with a permanent wave first agent containing these compounds. There wasn't.

  As a result of studies by the present inventors, it has been found that if the carboxymethyl dextran sodium as described above is contained in the second permanent wave agent, the unity feeling of the permanent wave can be improved.

  In order to exhibit such an effect, in the permanent wave second agent of the present invention, the ratio of the carboxymethyl dextran sodium to the entire permanent wave second agent is preferably 0.01 to 10% by mass. That is, if the content of sodium carboxymethyl dextran is less than 0.01% by mass, the sense of unity of the permanent wave cannot be improved, and if it exceeds 10% by mass, the second agent has a strong adhesion to the hair. It becomes too much, and the sense of unity of the permanent wave and the deterioration of the condition occur.

  The reason why the above effect can be obtained by adding carboxymethyldextran sodium to the permanent wave second agent has not been fully clarified, but it can be considered as follows. It was. That is, when it is contained in the permanent wave first agent, the carboxymethyl dextran sodium is washed away for the subsequent water washing step or the intermediate acid rinsing treatment step, and the effect on the unity feeling of the permanent wave is not exhibited. It was considered that the effect was effectively exhibited when contained in the agent.

  In addition, by treating the hair with the permanent wave second agent as described above, the hair treatment agent containing a cationic compound (hereinafter sometimes referred to as “exclusive hair treatment agent”) is used in combination. The effect of the second agent is synergistically improved and the condition of the hair surface is improved, and these effects can be sustained for a long time.

  In order to exert such an effect, the content of the cationic compound in the dedicated hair treatment agent is preferably 0.5% by mass or more (ratio to the entire dedicated hair treatment agent), but the content is excessive. If it becomes, since the unity of a wave and the sustainability of a condition will fall, it is preferable to set it as 10 mass% or less.

  Cationic surfactants, cationized cellulose derivatives, cationized starch, cationized guar gum, diacyl quaternary ammonium polymers or copolymers, quaternized polyvinyl pyrrolidone derivatives And amino-modified silicone. Among these, preferable examples include a cationic surfactant and an amino-modified silicone, and at least one of them can be contained. Examples of the cationic surfactant include stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, behenyltrimethylammonium chloride, distearyldimethylammonium chloride, lanolin fatty acid ethylpropylethyldimethylsulfate Ammonium is exemplified, but particularly preferred is at least one of stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc. (however, the total content is within the above range) ).

  The reason why the excellent effect as described above was obtained by using the permanent wave second agent of the present invention in combination with the exclusive hair treatment agent as described above can be considered as follows. That is, the permanent wave second agent containing sodium carboxymethyl dextran is an anionic treatment agent, and the permanent wave second agent and a cationic treatment agent containing a cationic compound. By using together the exclusive hair treatment agent that becomes, a complex with ions is formed, the hair is improved, and a sense of unity is also given, which can be considered to form a favorable environment for hair. (See Example 4 below). Moreover, the effect of such a combination is not affected by the polarity (nonionic, cationic or anionic) of the permanent wave first agent.

  The permanent wave second agent of the present invention contains at least carboxymethyl dextran sodium, but is an oxidant such as sodium bromate, sodium perborate, hydrogen peroxide, which is an essential component as the permanent wave second agent. May be included, and various additives may be included. The oxidizing agent is generally used for permanent wave agents and straight permanent agents. The dedicated hair treatment agent of the present invention may also contain various additives in addition to the cationic compound.

  Additives that may be contained in the permanent wave second agent or hair treatment agent of the present invention include moisturizers, fats and oils, lanolins, higher alcohols, fluorine compounds, silicones, surfactants (anions) Ionic surfactants, nonionic surfactants, amphoteric surfactants), thickeners / gelling agents, preservatives, chelating agents, pH adjusters / acids / alkalis, solvents, anti-inflammatory Agents, fragrances, pigments and the like can be mentioned, and these can be appropriately blended.

  Examples of these additives include moisturizers such as 1,3-butylene glycol, propylene glycol, glycerin and other polyhydric alcohols, collagen, gelatin, elastin, collagen-degrading peptide, elastin-degrading peptide, and keratin degrading. Peptides, Silk Proteolytic Peptides, Soy Proteolytic Peptides, Wheat Proteolytic Peptides, Casein Degrading Peptides and Other Proteins and Peptides and Their Derivatives, Arginine, Serine, Glycine, Glutamic Acid, Trimethylglycine and Other Amino Acids, Aloe Extract, Hamamelis Examples include plant extract components such as water, loofah water, chamomile extract, licorice extract, sodium hyaluronate, citrate, chondroitin sulfate, sodium lactate, sodium 2-pyrrolidone-5-carboxylate and the like.

  As fats and oils, castor oil, palm oil, palm oil, palm shell oil, safflower oil, olive oil, avocado oil, sesame oil, evening primrose oil, wheat germ oil, macadamia nut oil, hazelnut oil, rosehip oil, meadow foam oil, Tea tree oil, peppermint oil, corn oil, rapeseed oil, sunflower oil, cottonseed oil, soybean oil, peanut oil, rice bran oil, liquid shea fat, jojoba oil and other vegetable oils, liquid paraffin, squalane, light liquid paraffin, ceresin, Paraffin wax, polyethylene, microcrystalline wax, hydrocarbons such as petroleum jelly, esters such as di-2-ethylhexyl succinate, isopropyl palmitate, beeswax, candelilla wax, carnauba wax, rice wax, whale wax, shellac, cotton wax, Waxes such as owl and hydrogenated jojoba oil It is.

  Examples of lanolins include lanolins such as liquid lanolin, reduced lanolin and adsorption-purified lanolin. As higher alcohols, linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyltetradecinol, lanolin Examples thereof include branched chain alcohols such as alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.

  Examples of the fluorine compound include fluorine-based compound derivatives such as perfluoropolyether, polyperfluoroethoxymethoxydifluorohydroxyethyl, polyperfluoroethoxymethoxydifluoromethyl distearyl amide, polyperfluoroethoxymethoxydifluoroethyl polyethylene glycol phosphate, and the like. It is done.

  Examples of silicones include low-viscosity dimethylpolysiloxane, high-viscosity dimethylpolysiloxane, cyclic dimethylsiloxane (decamethylcyclopentasiloxane), methylphenylpolysiloxane, diphenylpolysiloxane, silicone resin, silicone rubber, cation-modified polysiloxane, polyether Examples thereof include modified polysiloxane and fluorine-modified polysiloxane.

  Anionic surfactants include fatty acid salts, alkyl sulfate salts, polyoxyethylene alkyl sulfate salts, polyoxyethylene fatty amine sulfate salts, acyl N-methyl taurate salts, alkyl ether phosphate ester salts, N-acyl amino acids. Examples include salts.

  Nonionic surfactants include polyhydric alcohol fatty acid partial esters, polyglycerin fatty acid esters, alkyldimethylamine oxides, alkylpolyglycosides, alkylglycosides, and the like.

  Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaines, alkylamidodimethylaminoacetic acid betaines, 2-alkyl-N-carboxy-N-hydroxyimidazolinium betaines, and the like.

  Thickening and gelling agents include guar gum, xanthan gum, carrageenan, alginic acid, tragacanth gum, starch derivatives, sodium carboxymethylcellulose, carboxyvinyl polymer, acrylic acid / methacrylic acid alkyl copolymer, polyvinyl alcohol, acrylic resin alkanolamine liquid Etc.

  Examples of the preservatives include p-hydroxybenzoic acid esters, benzoates, phenoxyethanol, quaternary ammonium salts and the like.

  Examples of chelating agents include edetate, phosphonic acids, polyamino acids and the like. Examples of pH adjusters / acids / alkalis include phosphoric acid, malic acid, tartaric acid, carbonic acid, fumaric acid, citric acid, lactic acid, glycolic acid, succinic acid, hydrochloric acid, sulfuric acid, nitric acid or salts thereof, sodium hydroxide, water Examples thereof include potassium oxide, disodium hydrogen phosphate, monoethanolamine, diethanolamine, triethanolamine, arginine, aqueous ammonia, aminomethylpropanol, and salts thereof.

  Examples of the solvents include water, ethanol and decamethylcyclopentasiloxane, as well as lower alcohols such as 2-propanol. Examples of the anti-inflammatory agents include licorice derivatives such as glycyrrhizic acid and carbenoxolone disodium, allantoin, guaiazulene, aloe, α-bisabolol and the like.

  Next, the present invention will be described more specifically by way of examples. However, the following examples are not intended to limit the present invention, and all modifications can be made without departing from the spirit of the above and following descriptions. To be included in the scope.

[Example 1]
(Preparation of bleached hair)
The following bleaching treatment was performed on hair that had not been subjected to chemical treatment at all and used for the following evaluation.

(Bleach processing)
A bleaching agent obtained by mixing toner bleach powder (powder bleaching agent: manufactured by Nakano Pharmaceutical Co., Ltd.) and caradeco oxide EX06 (hydrogen peroxide-based oxidizing agent: manufactured by Nakano Pharmaceutical Co., Ltd.) so as to be 1: 3 (mass ratio). The hair was applied to the hair at a mass ratio of 1: 1, treated at 30 ° C. for 30 minutes, washed with 10% by mass SDS solution (sodium dodecyl sulfate solution), and then dried.

(Production of permanent wave treated hair)
The bleached hair (0.2 g) was wound around a rod having a diameter of 12 mm and fixed with a rubber band. It was immersed in a permanent wave first agent containing a reducing agent and an alkali agent (formulation example 32 in Table 4 below) for 30 seconds, taken out from the solution, and then allowed to stand at 30 ° C. for 15 minutes. Then, after fully washing with water, it was immersed in various permanent wave 2nd agents shown in the following Table 1 (prescription examples 1 to 8 in the following Table 1) for 30 seconds, taken out from the solution, and allowed to stand at 30 ° C. for 10 minutes. Subsequently, it was washed with water, the hair was removed from the rod, and the unity feeling of the permanent wave and the condition of the hair surface were evaluated according to the following various criteria.

(Sensory evaluation method of permanent wave unity)
The permanent treated wave-treated hair was dipped in water, then hung, and after standing for 1 hour, the sense of unity of the permanent wave was evaluated by the 10 panelists according to the following evaluation criteria.

[Evaluation criteria for the sense of unity of the permanent wave]
A: A very coherent wave was obtained.
○: A coherent wave was obtained.
Δ: A wave with a little feeling of unity and a slightly dry feeling was obtained.
X: A wave with a feeling of unity and a feeling of bulkiness was obtained.

(Electrostatic voltage measurement test)
In order to numerically evaluate the sense of unity of the permanent wave, the electrostatic voltage of the hair was measured to evaluate the antistatic effect. For the measurement at this time, DIGITAL ELECTROSTATIC METER MODEL [KDS-0303] (manufactured by Kasuga Denki Co., Ltd.) was used. The hair that had undergone the above-mentioned various steps was rubbed with a nylon nylon glove 30 times from the root of the hair toward the tip of the hair to generate static electricity intentionally, and then the electrostatic voltage on the hair surface was measured with the measuring instrument. Moreover, the evaluation criteria at this time are as follows.

[Evaluation criteria for antistatic effect]
A: The electrostatic voltage is less than 70V.
○: The electrostatic voltage is 70 or more and less than 85V.
Δ: The electrostatic voltage is 85 or more and less than 100V.
X: Electrostatic voltage shall be 100V or more.

(Sensory evaluation method of hair condition)
The condition of the surface of the wave-treated hair subjected to the permanent treatment (suppression of squeakiness, smoothness, and smoothness) was evaluated by 10 professional panelists using hair bundles according to the following evaluation criteria.

[Evaluation criteria for hair condition]
A: Clearly improved condition.
○: Condition improved.
(Triangle | delta): The condition was comparable.
X: Condition decreased.

  Moreover, the friction coefficient of hair was measured by the following method, and the condition of hair was evaluated numerically.

(Friction coefficient measurement method)
(A) Target hair Using the above-mentioned wave-treated hair, a fixed hair piece for friction feeling measurement (hereinafter referred to as “measurement hair bundle”) was prepared.
(B) Measurement (1) Humidity adjustment of hair: The hair bundle for measurement was conditioned at 20 ° C. and 60% humidity for 24 hours or more.
(2) Measuring equipment and conditions: A friction tester “KES-SE” (manufactured by Kato Tech Co., Ltd.) was used for the measurement.
(3) Measurement was performed under the conditions of measurement sensitivity: H, static static load: 50 gf, sensor: silicon type. Scanning was performed in the forward direction (hair bundle from the root). The coefficient of friction (μ) was determined by multiplying the MIU value (calculated value) by a coefficient of 0.1. Moreover, the evaluation criteria at this time are as follows.

[Evaluation criteria for friction coefficient (μ)]
A: The coefficient of friction (μ) is less than 0.50.
◯: The friction coefficient (μ) is 0.50 or more and less than 0.60.
Δ: The coefficient of friction (μ) is 0.60 or more and less than 0.70.
X: The friction coefficient (μ) is 0.70 or more.

  These results are shown in Table 1 below together with formulation examples (prescription examples 1 to 8) of the permanent wave second agent. In Table 1, the evaluations related to the sense of unity of waves (◎, ○, Δ, ×) are based on electrostatic voltage. As is apparent from this result, when treated with a permanent wave second agent (formulation example 1) containing a predetermined amount of carboxymethyl dextran sodium, the feeling of unity of the wave is not the best, but the best result regarding the condition It can be seen that

[Example 2]
The bleached hair (0.2 g) shown in Example 1 was wound around a rod having a diameter of 12 mm and fixed with a rubber band. A permanent wave first agent (formulation example 32 in Table 4 below) containing a reducing agent and an alkali agent was applied at a mass ratio of 1: 1 and allowed to stand at 30 ° C. for 15 minutes. Then, the permanent wave 2nd agent shown to the said prescription example 1 of the said Table 1 was apply | coated (ratio of 1: 1 by mass ratio), and it was left to stand at 30 degreeC for 10 minutes. Subsequently, various special hair treatment agents (Prescription Examples 9 to 20) shown in Table 2 below were applied at a mass ratio of 1: 1 and washed with water, and then the unity feeling of permanent waves was evaluated according to the criteria shown in Example 1. At the same time, the sustainability of the condition was evaluated by the following method.

(Test method for condition sustainability)
Each hair treated above was washed with 10% SDS aqueous solution, washed with water and dried. After the process was repeated 30 times, 10 expert panelists evaluated the condition sustainability according to the following criteria.

[Evaluation criteria for condition sustainability]
A: Clearly improved condition.
○: Condition improved.
(Triangle | delta): The condition was comparable.
X: Condition decreased.

  The results are shown in Table 2 below together with examples of hair treatment agents (Prescription Examples 9 to 20). As is apparent from these results, the condition sustainability improved as the content of the hair treatment agent containing a cationic compound such as stearyltrimethylammonium chloride and amino-modified silicone emulsion increased. I understand that

[Example 3]
The bleached hair (0.2 g) shown in Example 1 was wound around a rod having a diameter of 12 mm and fixed with a rubber band. It was immersed in a permanent wave first agent containing a reducing agent and an alkali agent (formulation example 32 in Table 4 below) for 30 seconds, taken out from the solution, and then allowed to stand at 30 ° C. for 15 minutes. Then, after sufficiently washing with water, it was immersed in various permanent wave second agents shown in Table 3 below (Prescription Examples 21 to 31 and Prescription Example 1 shown in Table 1) for 30 seconds, taken out from the solution, and at 30 ° C. Left for 10 minutes. Subsequently, the treatment was carried out with the formulation 15 that was the best among the exclusive hair treatment agents shown in Table 2 above (the treatment method is the same as above), and in the same manner as in Example 1, the sense of unity of the permanent wave The hair surface condition was evaluated.

  These results are shown in Table 3 below together with formulation examples of the permanent wave second agent (formulation examples 1, 21 to 31). As is apparent from these results, when carboxymethyl dextran sodium was contained in an amount of 0.01 to 10% by mass (Prescription Examples 1, 22 to 29), both the unity of the permanent wave and the condition of the hair surface were good. It turns out that the result is obtained. On the other hand, good results have been obtained with a low carboxymethyl dextran sodium content (Formulation Example 21) or an excessive amount (Prescription Examples 30 and 31) as a permanent wave second agent. I understand that there is no.

[Example 4]
In the said Examples 1-3, as the permanent wave 1st agent, the formulation example 32 shown in following Table 4 was used, and this permanent wave 1st agent is a cationic thing. In addition to these permanent wave first agents, the present inventors also prepared nonionic and anionic permanent wave first agents, and various (cationic, nonionic and anionic) permanent wave second agents and The effect of the combination of hair treatment agents (Table 7 below) was also investigated.

  The permanent wave first agent used at this time is shown in the following Table 4 (Prescription Examples 32-34), and the permanent wave second agent is shown in the following Table 5 (Prescription Examples 35 and 36, and the Prescription Example 23 shown in Table 3 above). The exclusive hair treatment agents (treatment agents used after treatment with the second agent) are shown in the following Table 6 (Prescription Example 15 and Prescription Examples 37 and 38 shown in Table 2), respectively.

  Various permanent wave first agents (Table 4) containing a reducing agent and an alkaline agent were applied at a mass ratio of 1: 1 to hair (1 g) that had been bleached in the same manner as in Example 1 and fixed straight. . After leaving it at 30 ° C. for 15 minutes, it was thoroughly washed with water, and various permanent wave second agents (Table 5) were applied at a mass ratio of 1: 1 and fixed again straight. Thereafter, various hair treatment agents (Table 6 above) were applied at a mass ratio of 1: 1, and thoroughly blended with fingers. Next, after washing with water and drying, the hair feeling was evaluated. At this time, the wave-treated hair was evaluated by processing without being wound on a rod in order to make evaluation easier. In addition, other evaluations regarding the sense of unity of hair (electrostatic voltage, evaluation by specialized panelists) were performed in the same manner as in Example 1, and evaluations on hair condition were also performed in the same manner as in Example 1. FIG. 1 (drawing substitute photograph) shows the evaluation criteria when visually evaluating the sense of unity of the waves.

  The results are shown in Table 7 below together with combinations of permanent wave first agent, second agent and dedicated hair treatment agent (Experiment Nos. 1 to 10). In addition, Experiment No. FIG. 2 (drawing substitute photograph) compares the unity feeling of the waves processed in 1 to 10. In Table 7, the evaluation (◎, ○, Δ, ×) of the feeling of unity of waves (straight state) is also shown.

  As is clear from this result, regardless of the polarity of the permanent wave first agent, by combining the anionic permanent wave second agent and the cationic exclusive hair treatment agent (Experiment No. 1, 3, 7). It can be seen that good results were obtained in both the sense of unity of the permanent wave and the condition of the hair surface.

It is a drawing substitute photograph which shows the evaluation standard when evaluating the unity feeling of a permanent wave visually. It is the drawing substitute photograph which compared and showed the unity feeling of the hair (Experiment No. 1-10) which processed the permanent wave 1st agent, the 2nd agent, and the hair treatment agent in various combinations in Example 4.

Claims (6)

  A second agent used for permanent wave treatment, which contains sodium carboxymethyldextran.   The permanent wave second agent according to claim 1, wherein a ratio of the carboxymethyl dextran sodium to the entire permanent wave second agent is 0.01 to 10% by mass.   A hair treatment agent applied to hair after being treated with the permanent wave second agent according to claim 1 or 2, wherein the hair treatment agent contains a cationic compound. Hair treatment agent.   The hair treatment agent according to claim 3, wherein the cationic compound is at least one of a cationic surfactant and an amino-modified silicone.   The hair treatment agent according to claim 4, wherein the cationic surfactant is at least one of stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, and lauryl trimethyl ammonium chloride.   The hair treatment agent according to any one of claims 3 to 5, wherein a ratio of the cationic compound to the whole hair treatment agent is 0.5 to 10% by mass.