JP6110090B2 - Hair deformation treatment - Google Patents

Description

  The present invention relates to a hair deformation treatment agent used for forming a wave-like shape of hair and straightening hair, and a hair deformation treatment method using the hair deformation treatment agent.

  Permanent wave treatment and curly hair straightening treatment are known as hair deformation treatment. In the permanent wave treatment that forms the hair into a wave shape, a two-bath type permanent wave agent or a one-bath type permanent wave agent is used. Is used (see, for example, Non-Patent Document 1). The two-bath type permanent wave agent and the two-bath type hair straightener are thioglycolic acid, thioglycolic acid salt, acetyl cysteine, acetyl cysteine salt and other first agent, hydrogen peroxide, And a second agent containing an oxidizing agent such as bromate and perborate, and a one-bath type permanent wave agent includes an agent containing a reducing agent, but an agent containing an oxidizing agent Not equipped.

Japan Permanent Wave Liquid Industrial Association, “SCIENCE of WAVE Revised Edition”, Shin Beauty Publishing Co., Ltd., issued April 10, 2002, p. 20-31

  In the treatment process using the above-mentioned two-bath type permanent wave agent and two-bath type hair straightener, the disulfide bond is cleaved by the action of the reducing agent and the disulfide bond is produced by the action of the oxidizing agent. In the treatment process using the other one-bath type permanent wave agent, the formation of disulfide bonds by air oxidation is different from the treatment using the two-bath type permanent wave agent. Oxidation in any treatment process is for fixing the formed hair shape, and in order to make the hair shape wavy, a disulfide bond is generated in a state where the hair is wound around a rod, In order to bring the shape closer to a straight line, a disulfide bond is generated while the hair is stretched with a panel or iron.

  By the way, since the general reducing agent mix | blended with the agent for permanent waves and a hair straightener is a compound which has thiol groups, such as thioglycolic acid, it leaves a mercaptan smell in the hair after a process. If the blending amount of the reducing agent is reduced in order to reduce the odor, the hair shape imparting efficiency is lowered.

  In view of the above circumstances, the present invention is a hair deformation treatment agent capable of suppressing reduction in hair shape imparting efficiency even when the amount of a reducing agent having a thiol group is reduced, and hair deformation using this hair deformation treatment agent. The purpose is to provide a processing method.

As a result of intensive studies by the inventor, the present inventors have found that if the hair is treated with a composition having a predetermined pH containing a reducing sugar, the hair shape can be deformed, and the present invention has been completed.
That is, the hair deformation treatment agent according to the present invention is characterized in that one or more selected from reducing sugars are blended with water and the pH is 10.0 or more.

  The treatment agent for deforming hair according to the present invention preferably contains monosaccharides and / or disaccharides as the reducing sugar, and preferably has a pH of 10.5 or more and 12.5 or less.

  The treatment agent for deforming hair according to the present invention is preferably such that the blending amount of the reducing agent having a thiol group is 3% by mass or less or the reducing agent having a thiol group is not blended. By making the reducing agent 3% by mass or less, the mercaptan odor remaining on the hair is reduced, and by not incorporating the reducing agent, the mercaptan odor can be suppressed.

  In the hair deformation treatment method according to the present invention, one or two or more types selected from reducing sugars and water are blended, and a hair deformation treatment agent having a pH of 10.0 or more is applied to the hair and heated. A deformation process is provided. The heating in the hair deformation process is preferably performed while suppressing the evaporation of water from the hair deformation treatment agent.

  The hair deformation treatment method according to the present invention preferably includes an oxidation step of treating the hair after the hair deformation treatment step with an oxidizing agent. By providing the oxidation step, the sustainability of the hair shape is improved.

  According to the hair deformation treatment agent and the hair deformation treatment method according to the present invention, since the hair deformation treatment agent has a predetermined pH in which reducing sugar is blended, it is possible to suppress a reduction in hair shape imparting efficiency.

The drawing substitute photograph showing the hair | bristle bundle after the hair deformation process of Examples 1a-1d and the comparative example 1. FIG. The drawing substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 2a-2c. The figure substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 3a-3c. The figure substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 4a-4d. The drawing substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 5 and Comparative Example 5. FIG. The drawing substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 6. FIG. The drawing substitute photograph showing the hair | bristle bundle after the hair deformation process of Example 7a-7b.

Based on an embodiment of the present invention, the present invention will be described below.
The treatment agent for hair deformation according to the present embodiment (hereinafter, “treatment agent for hair deformation” may be simply referred to as “treatment agent”) has a predetermined pH in which reducing sugar is mixed in water ( The amount of water is, for example, 60% by mass or more. Further, in the treatment agent according to this embodiment, if it is acceptable in actual use, a known raw material blended in the first agent of the two-bath type permanent wave agent or the two-bath type hair straightener, You may mix | blend as an arbitrary raw material.

(Reducing sugar)
In the treatment agent of this embodiment, one or more selected from known saccharides as a reducing sugar are blended. This reducing sugar is a sugar having an aldehyde group or a ketone group under alkaline conditions. It is considered that the disulfide bond in hair is reductively cleaved by the aldehyde group or ketone group.

  A disaccharide corresponding to a monosaccharide and a reducing sugar, or a disaccharide corresponding to a monosaccharide and a reducing sugar may be added to the treatment agent of the present embodiment. Examples of monosaccharides include aldopentoses such as xylose; aldohexoses such as glucose, mannose, and galactose; ketohexoses such as fructose. Examples of the disaccharide corresponding to the reducing sugar include maltose and lactose. Suitable reducing sugars include glucose.

  The blending amount of the reducing sugar in the treatment agent of the present embodiment is not particularly limited, but is preferably 2% by mass to 50% by mass, preferably 5% by mass to 40% by mass, and preferably 10% by mass to 30% by mass. More preferred. If the blending amount is 2% by mass or more, it is advantageous for the hair shape imparting efficiency. If the blending amount is 30% by mass or less, the reducing sugar can be easily dissolved in water.

(Optional raw material)
The arbitrary raw material mix | blended with the processing agent of this embodiment is a well-known raw material mix | blended with the 1st agent of a 2 bath type permanent wave agent and a 2 bath type curly hair straightener as above-mentioned. As this optional raw material, for example, a reducing agent, an alkali agent, a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a polymer compound, silicone, hydrocarbon, wax, higher alcohol, polyvalent Alcohols, fatty acids, fats and oils, ester oils, proteins, amino acids, chelating agents, anti-inflammatory agents, preservatives, fragrances and the like.

  If one or more selected from a reducing agent having a thiol group is added to the treatment agent of this embodiment, the hair shape imparting efficiency is improved. Examples of the reducing agent include thioglycolic acid, thioglycolate (ammonium thioglycolate, monoethanolamine thioglycolate), L-cysteine, L-cysteine hydrochloride, DL-cysteine, DL-cysteine hydrochloride, N- Acetyl-L-cysteine. When a reducing agent having a thiol group is blended, the blending amount of the reducing agent in the treatment agent of the present embodiment is preferably 3% by mass or less and preferably 1% by mass or less in order to reduce mercaptan odor remaining on the hair. 0.4 mass% or less is more preferable, and 0.1 mass% or less is still more preferable (in order to reduce the mercaptan odor, it is optimal not to add a reducing agent having a thiol group).

  The processing agent of this embodiment can be set to predetermined | prescribed pH by the mixing | blending of 1 type, or 2 or more types chosen from the alkaline agent. Examples of the alkali agent include ammonia, amino alcohol (monoethanolamine, triethanolamine, isopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol. ), 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 alkali (potassium hydroxide, sodium hydroxide) can be mentioned.

(PH)
The lower limit value of the pH of the treatment agent of the present embodiment is 10.0, and may be 10.5. The other upper limit is 12.5, for example, and may be 11.5.

(Hair deformation treatment method)
A hair deformation treatment method using the treatment agent of this embodiment will be described below. This hair deformation treatment method includes a hair deformation step of heating the hair after applying the treatment agent to the hair. Moreover, if the hair after the hair deformation step is provided with an oxidation step in which the hair is treated with an oxidizing agent, the sustainability of the hair shape is improved.

  The hair to be treated by the hair deformation treatment method is not particularly limited, and hair having a history of chemical treatment such as treatment with a hair dye mixed with reactive dyes such as oxidation dyes, permanent wave treatment, etc. It becomes a target.

  As described above, the hair deformation step is to heat the hair after applying the treatment agent of the present embodiment to the hair. The higher the heating temperature, the better the hair shape application efficiency. Therefore, the heat source temperature for heating is preferably 40 ° C. or higher, preferably 50 ° C. or higher, and more preferably 60 ° C. or higher. In addition, the upper limit of the heat source temperature is 100 ° C., for example.

  At the time of heating in the hair deformation step, the hair is preferably covered with a resin film or the like, and the wet state of the hair is maintained by suppressing the evaporation of water from the treatment agent. By suppressing the evaporation of water, the hair shape application efficiency is improved.

  The longer the heating time in the hair deformation step, the more the hair shape changes. This time should be set as appropriate, and is, for example, not less than 5 minutes and not more than 60 minutes.

  In the oxidation step, as described above, the hair after the hair deformation step is treated with an oxidizing agent. Here, it is preferable to use a known agent as a second agent for a two-bath type permanent wave agent or a two-bath type hair straightener and to treat the hair with an oxidizing agent.

  As said 2nd known agent, an oxidizing agent and arbitrary raw materials are mix | blended with water. The oxidizing agent is, for example, bromate (sodium bromate, potassium bromate, etc.) or hydrogen peroxide. Further, as an optional raw material to be blended with the second agent, for example, nonionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant, polymer compound, silicone, hydrocarbon, wax, higher alcohol, They are polyhydric alcohols, fatty acids, fats and oils, ester oils, proteins, amino acids, chelating agents, anti-inflammatory agents, preservatives, and perfumes. The pH of the second agent is preferably 4.5 or more and 8.0 or less, preferably 5.0 or more and 7.5 or less, when blending bromate, and when blending hydrogen peroxide. 2.0 to 4.0, preferably 2.5 to 3.5.

  The hair deformation treatment method of the present embodiment is as described above. In this method, a technique in a known process using a permanent wave agent or a hair straightener may be appropriately employed. In addition, a pretreatment performed before the known treatment, an intermediate treatment performed between the treatment with the first agent and the treatment with the second agent, and a post-treatment performed after the treatment with the second agent may be appropriately employed. .

  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.

(Processing agent)
The processing agent of the Example and the comparative example which mix | blended water and saccharides (glucose, fructose, maltose, lactose, or trehalose) and adjusted pH with sodium hydroxide was prepared. Tables 1 to 7 below show the types and concentration of sugars added to the treatment agent and the adjusted pH.

(Oxidation process agent)
A commercially available second agent for permanent wave (“Pre-Premium C / T” manufactured by Milbon, 8% by mass of sodium bromate) was used as an agent for the oxidation step.

(Hair deformation treatment method)
By the hair deformation treatment method comprising the following hair deformation step and oxidation step, the hair bundle (washed hair bundle having a history of treatment with an oxidative hair dye, length 20 to 25 cm, mass 0.1 to 0.2 g) Processed. In Example 7b described later, the oxidation step was omitted.

  The hair bundle was wrapped around a 12 mm diameter rod, 2 ml of any of the above treatments were applied to the hair, and the entire rod and hair were covered with a polyvinylidene chloride film. The rod temperature is set to the “setting temperature of the heater” shown in the following Tables 1 to 7 (the rod temperature is set by “Twin Bell Plus” manufactured by Sakura Sangyo Co., Ltd.), and the heating time is set to Tables 1 to 7 below. It set to the "warming time" of description, and the process by a hair deformation process was performed.

  After the hair deformation step, 4 ml of the oxidation step agent was applied to the hair bundle that had been naturally cooled for 3 minutes and left for 10 minutes. The process from application to standing was defined as an oxidation process. After this oxidation step, the hair bundle was washed with water.

  Tables 1 to 7 below show details of the treatment agent and conditions for the hair deformation treatment method. 1 to 7 are photographs taken after the moisture in the hair bundle treated by the hair deformation treatment method is cut and the upper end is fixed.

  In Table 1 and FIG. 1, it can be confirmed that in Comparative Example 1 using trehalose which is not a reducing sugar, the wave shape is poorer than Examples 1a to 1d using a reducing sugar.

  In Tables 2 to 3 and FIGS. 2 to 3, it can be confirmed that the wave shape imparting efficiency is increased by increasing the blending amount of sugar.

  In Table 4 and FIG. 4, it can confirm that provision of hair shape improved by lengthening the heating time in a hair deformation process.

  In Table 5 and FIG. 5, it can confirm that the comparative example 5 whose pH of a processing agent is less than 10.0 had inferior provision of the wave shape rather than Example 5 whose same pH is 10.0 or more. .

  In Table 7 and FIG. 7, it can confirm that the direction provided with the process by an oxidation process was advantageous to provision of a wave shape. FIG. 7 is a photograph of a hair bundle left in water overnight after treatment by the hair deformation treatment method.

Claims (8)

  One or more kinds selected from reducing sugars and water are blended, the blending amount of the reducing sugars is 2% by mass or more and 5% by mass or less, and the pH is 10.0 or more. Treatment agent.   The treatment agent for hair deformation according to claim 1, wherein a monosaccharide and / or a disaccharide is blended as the reducing sugar.   The treatment agent for hair deformation according to claim 1 or 2, wherein the pH is 10.5 or more and 12.5 or less.   The treatment agent for hair deformation according to any one of claims 1 to 3, wherein the amount of the reducing agent having a thiol group is 3% by mass or less. Hair deformation treating agent according to any one of claims 1 to 3, reducing agents with thiols groups are not compounded.   One or two or more types selected from reducing sugars and water are blended, the reducing sugar is blended in an amount of 2 mass% to 5 mass%, and the hair deformation treatment agent has a pH of 10.0 or more. A hair deformation treatment method characterized by comprising a hair deformation step of applying to the skin and heating.   The hair deformation treatment method according to claim 6, wherein the heating in the hair deformation step is performed while suppressing evaporation of water from the hair deformation treatment agent.   The hair deformation treatment method according to claim 6 or 7, further comprising an oxidation step of treating the hair after the hair deformation step with an oxidizing agent.