JP5522815B2 - Two-part hair treatment - Google Patents

Description

  The present invention relates to a two-component hair treatment agent comprising a first agent and a second agent that are sequentially applied to hair. The two-component hair treatment agent of the present invention can be used as a hair rinse agent, a hair treatment agent or a hair conditioning agent.

  The daily shampoo treatment causes the oil necessary for the hair to be washed away more than necessary together with the dirt on the hair, or the hair is damaged by drying the dryer, and the hair is damaged daily. In addition, with recent spread of decolorization treatment, hair dyeing treatment, perm treatment, etc., hair damage is becoming more prominent. For example, the loss of a smooth texture and an increase in the feeling of dryness not only deteriorate the flexibility and fingering property of the hair, but also tend to cause split ends and split hairs.

  In order to eliminate such hair damage, components such as cationic surfactants, cationic polymers, silicones, and cationic silicones are usually used as hair treatment agents such as hair rinses, hair treatment agents, and hair conditioning agents. (For example, refer patent documents 1-6).

  However, since many hair rinse agents, hair treatment agents, and hair conditioning agents are oil-in-water emulsions, oily components such as treatment components are in a state of being taken into water. Therefore, such a hair treatment agent does not sufficiently adhere to the oily component due to the difference in the surface state of the hair, so that the effect of improving the flexibility, fingering property and feel of the hair cannot be sufficiently obtained. There is also a problem that these effects are inferior in sustainability.

JP-A-5-194160 JP-A-7-165541 JP-A-9-118607 JP 9-316331 A Japanese Patent Laid-Open No. 10-7534 JP 2000-17173 A

  The present invention has been made in view of the above problems, and provides a hair treatment agent having good hair flexibility, fingering property and touch feeling, and further a hair treatment agent having excellent sustainability of these effects. This is the issue.

The hair treatment agent of the present invention is a two-component hair treatment agent comprising a first agent and a second agent that are sequentially applied to the hair. The hair treatment agent of the present invention is used for hair rinse, hair treatment or hair conditioning. In other words, the hair treatment agent of the present invention can be used as a hair rinse agent, a hair treatment agent, or a hair conditioning agent. The first agent constituting the hair treatment agent of the present invention contains at least trimethylglycine and isoprene glycol, the second agent contains at least a silicone oil and a cationic surfactant , and the silicone oil is a chain silicone. , Ru der least one member selected from the group consisting of cyclic silicones and amino-modified silicones.

  The two-component hair treatment agent of the present invention has the effect of being excellent in hair flexibility, fingering and touch. In addition, there is an effect that the sustainability of these effects is remarkably excellent.

  Hereinafter, embodiments of the present invention will be described in detail. The hair treatment agent of this embodiment consists of a first agent and a second agent that are sequentially applied to the hair. First, the first agent will be described.

(First agent)
The first agent contains at least trimethylglycine and isoprene glycol. The content of trimethylglycine in the first agent is preferably 0.1% by weight or more, more preferably 1% by weight or more, from the viewpoint of imparting elasticity to the hair and the inherent elasticity of the hair. However, the upper limit may be set to 40% by weight or less, preferably 30% by weight or less, from the viewpoint of suppressing the feeling of stickiness and roughness of hair.

  The first agent may be washed after applying to the hair and before applying the second agent. However, when preparing the first agent on the premise of washing away, it is desirable to increase the content of trimethylglycine in the first agent than when preparing the first agent on the premise of not washing off. . As a non-limiting example, the content of trimethylglycine in the first agent is preferably about 1% by weight to 35% by weight, more preferably about 10% by weight to 30% by weight when washed away. . Further, when not washed away, it is preferably about 0.1% by weight to 10% by weight, more preferably about 1% by weight to 5% by weight.

  The content of isoprene glycol in the first agent is preferably 5% by weight or more, more preferably 10% by weight or more, from the viewpoint of improving the touch after the treatment. However, from the viewpoint of suppressing squeaking of hair, the upper limit may be set to 70% by weight or less, preferably 50% by weight or less.

  In the first agent, as long as the effects of the present invention are not impaired, thickeners, polymer resins, esters, higher fatty acids, hydrocarbons, higher alcohols, silicone oils, animals and Plant extracts, preservatives, water, fragrances and the like can be appropriately blended.

  The first agent may take a dosage form such as liquid, emulsion, gel, foam or cream. However, when the dosage form of the first agent is in an emulsified state, the desired effect of trimethylglycine in the first agent may be reduced, so the first agent is in a dosage form other than the emulsified form, for example, a liquid form. It is preferable. In other words, the first agent contains a surfactant having a concentration lower than the micelle formation limit concentration, or does not contain any surfactant, that is, contains no surfactant substantially. desirable.

(Second agent)
The second agent contains at least a silicone oil and a cationic surfactant. Examples of the silicone oil used include chain silicone; cyclic silicone; polyether-modified silicone, amino-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, and fluorine-modified silicone. And modified silicones such as alkyl-modified silicones. These can be used alone or in appropriate combination of two or more. Suitable silicone oils include chain silicones, cyclic silicones, and amino-modified from the viewpoints of improving the adsorptivity to damaged parts of hair, improving the fingering property and feel of hair, and maintaining these effects. Silicone may be mentioned.

  Specific examples of the chain silicone include methylpolysiloxane, highly polymerized methylpolysiloxane having an average degree of polymerization of 650 to 7000, methylphenylpolysiloxane, dimethiconol and the like. In addition, a commercial item can be used as these components. For example, as commercial products of methylpolysiloxane, trade names: SH200C, BY11-026 (both manufactured by Toray Dow Corning Silicone Co., Ltd.) and the like can be mentioned. Examples of the highly polymerized methylpolysiloxane having an average degree of polymerization of 650 to 7000 include trade names: SH200, BY11-034 (both manufactured by Toray Dow Corning Silicone). Examples of methylphenylpolysiloxane include trade names: KF54, KF56 (both manufactured by Shin-Etsu Chemical Co., Ltd.), trade names: SF557, SF558 (both manufactured by Toray Dow Corning Silicone). Examples of dimethiconol include trade name: 1501 Fluid (manufactured by Toray Dow Corning Silicone).

  Specific examples of the cyclic silicone include methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and the like. In addition, a commercial item can be used as these components. For example, as methylcyclopolysiloxane, trade name: KF9937 (manufactured by Shin-Etsu Chemical Co., Ltd.) and the like can be mentioned. Examples of octamethylcyclotetrasiloxane include trade name: DC344 (made by Toray Dow Corning Silicone), trade name: TSF404 (made by Toshiba Silicone), and the like. Examples of decamethylcyclopentasiloxane include trade names: SH245, DC345 (both manufactured by Toray Dow Corning Silicone). Examples of dodecamethylcyclohexasiloxane include trade name: DC246 (manufactured by Toray Dow Corning Silicone).

  Specific examples of the amino-modified silicone include aminopropylmethylsiloxane / dimethylsiloxane copolymer, aminoethylaminopropylsiloxane / dimethylsiloxane copolymer, aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer, and the like. In addition, a commercial item can be used as these components. For example, as aminopropylmethylsiloxane / dimethylsiloxane copolymer, trade names: SF3551, SF3552 (both manufactured by Toray Dow Corning Silicone), trade names: SS-3551, SS-3552 (both Nippon Unicar) Manufactured) and the like. Examples of the aminoethylaminopropylsiloxane / dimethylsiloxane copolymer include trade names: SM8702C, SM8704C (both manufactured by Toray Dow Corning Silicone). Examples of the aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer include trade name: SF8452C (manufactured by Toray Dow Corning Silicone).

  The content of the silicone oil in the second agent is not particularly limited as long as the desired effect of the present invention is exhibited, but is preferably 3% by weight or more, more preferably 5% by weight or more. However, the upper limit may be set to 25% by weight or less, preferably 20% by weight or less, from the viewpoint of suppressing the feeling of stickiness and squeak.

  Examples of the cationic surfactant include alkylamine salts such as dioctylamine salts; fatty acid amidoamine salts such as diethylaminoethylamide stearate; monoalkyls such as lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, and stearyltrimethylammonium chloride. Quaternary ammonium salts; dialkyl quaternary ammonium salts such as distearyldimethylammonium chloride; trialkyl quaternary ammonium salts such as tri (polyoxyethylene) stearylammonium chloride; benzalkonium chloride and the like. These can be used alone or in appropriate combination of two or more. Suitable cationic surfactants include monoalkyl quaternary ammonium salts such as lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, and stearyltrimethylammonium chloride from the viewpoint of softening hair and improving finger passage. .

  The content of the cationic surfactant in the second agent is not particularly limited as long as the desired effect of the present invention is exhibited, but is preferably 0.1% by weight or more, more preferably 1% by weight or more. . However, the upper limit may be set to 10% by weight or less, preferably 5% by weight or less, from the viewpoint of suppressing stickiness and deterioration of washing off.

  The second agent can further contain a fatty acid ester from the viewpoint of improving the touch after the treatment. The fatty acid ester used is an ester compound of a fatty acid having 6 to 22 carbon atoms and an alcohol having 2 to 22 carbon atoms. Specific examples of fatty acid esters include isopropyl palmitate, isononyl isononanoate, cetyl 2-ethylhexanoate, isopropyl isostearate, 2-hexyldecyl isostearate, octyldodecyl myristate, ethyl linoleate, isopropyl myristate, isopropyl lanolinate Hexyl lanolinate, myristyl myristate, cetyl myristate, decyl oleate, cetyl palmitate, glyceryl trimyristate, propylene glycol dioleate, glyceryl triisostearate, glycerin triisooctanoate, glycerin tri-2-ethylhexanoate, lactic acid Examples include cetyl, myristyl lactate, and cholesteryl stearate. One or more of these fatty acid esters can be contained in the second agent.

  The content of the fatty acid ester in the second agent is not particularly limited as long as the desired effect of the present invention is exhibited, but is preferably 1% by weight or more, more preferably 3% by weight or more. However, from the viewpoint of suppressing the sticky feeling, an upper limit may be set to 20% by weight or less, preferably 15% by weight or less.

  As long as the second agent does not impair the effects of the present invention, in addition to the above components, higher fatty acids, higher alcohols, hydrocarbons, cationic polymers, thickeners, polymer resins, animal and plant extracts , Preservatives, water, fragrances, and the like can be appropriately blended. The second agent may take a dosage form such as liquid, emulsion, gel, foam or cream.

(Hair treatment method)
The hair treatment agent of this embodiment is a two-component type in which the first agent and the second agent are sequentially applied to the hair. After applying the first agent to the hair, before applying the next second agent, the first agent may or may not be washed away. Preferably, after the first agent is applied, washing is performed, then the second agent is applied, and then rinsed (rinsing).

  The hair treatment agent of this embodiment can be used as a hair rinse agent, a hair treatment agent, or a hair conditioning agent. Generally, hair rinsing, hair treatment, and hair conditioning are performed on wet hair after shampooing. However, from the viewpoint of the effect of the present invention, the hair treatment agent of this embodiment can be applied to hair (towel dry hair or half dry hair) from which attached moisture has been removed by a towel or the like, or dry hair before shampooing. preferable.

  In the hair treatment with the hair treatment agent of this embodiment, another treatment agent may be used between the treatment with the first agent and the treatment with the second agent. For example, it is preferable to use a treatment agent containing a phospholipid polymer after the application of the first agent and before the application of the second agent for hair parts such as split ends and split hairs. As such a treating agent, for example, a trade name: LIPIDURE (registered trademark) -NR, LIPIDURE (registered trademark) -NA (both manufactured by NOF Corporation) is used, and the content of the phospholipid polymer is 0.05% by weight. A phospholipid polymer-containing aqueous solution adjusted to 0.25% by weight or less is mentioned. The first agent before the application of the phospholipid polymer-containing aqueous solution and the phospholipid polymer-containing aqueous solution before the application of the second agent may or may not be washed away. Preferably, after washing away the first agent, an aqueous solution containing a phospholipid polymer is applied, and the second agent is applied without washing away.

  In addition, in order to further improve the flexibility, fingering and touch of the hair, and to impart moisture and gloss to the hair, after treatment with the second agent, silicone oil, surfactant, cationic high Compositions containing molecules, higher alcohols, polyhydric alcohols, etc. can also be applied to the hair. This composition can be applied after the second agent is washed away or without being washed away, but it is preferred that the second agent is applied without being washed away.

The technical idea that can be grasped from this embodiment will be described below.
(1) The two-component hair treatment agent according to any one of claims 1 to 4, wherein the hair to which the first agent is applied is towel dry hair, half dry hair, or dry hair. In this case, the effect of the present invention becomes more remarkable.

(2) After applying the first agent, further comprising a phospholipid polymer-containing aqueous solution to be applied to the hair before applying the second agent, any one of claims 1 to 4 and the technical idea (1) The two-component hair treatment agent according to claim 1. In this case, the effect of the present invention can be sufficiently exhibited even for hair that is particularly severely damaged.

  Hereinafter, although an Example and a comparative example are given and this embodiment is described more concretely, the present invention is not limited at all by these. In addition, a compounding quantity is weight%.

(Sample preparation)
According to the composition described in Table 1, Formulation Examples 1 and 2 as the first agent were prepared. Moreover, according to the composition described in Table 2, the formulation examples 3-5 as a 2nd agent were prepared. In Table 1, trimethylglycine is trade name: amino coat (Asahi Kasei Kogyo Co., Ltd.), amino modified silicone in Table 2 is trade name: SF8452C (Toray Dow Corning Silicone Co., Ltd.), dimethiconol is , Trade name: 1501 Fluid (made by Toray Dow Corning Silicone), highly polymerized methylpolysiloxane is trade name: SH200 (average polymerization degree 5000) (made by Toray Dow Corning Silicone), cyclic silicone is Product name: DC345 (made by Toray Dow Corning Silicone) was used.

(Preparation of test hair bundle)
A hair bundle having a length of about 30 cm (hereinafter referred to as a test hair bundle), which was decolorized with a bleaching agent (trade name: Gatsby (registered trademark) EX hybrid, manufactured by Mandom), washed with shampoo and dried. This was used in Examples and Comparative Examples.

(Examples 1-3)
After 1 g of Formulation Example 1 (first agent) was uniformly applied to the test hair bundle, 1 g of Formulation Examples 3 to 5 (second agent) was uniformly and individually applied without washing with water. Thereafter, it was washed with water and dried.

(Examples 4 to 6)
After 1 g of Formulation Example 2 (first agent) was uniformly applied to the test hair bundle and washed with water, 1 g of Formulation Examples 3 to 5 (second agent) was uniformly applied individually. Thereafter, it was washed with water and dried.

(Comparative Examples 1-3)
Without performing the treatment with the first agent, only 1 g of Formulation Examples 3 to 5 (second agent) were individually and uniformly applied to the test hair bundle. Thereafter, it was washed with water and dried.

(Comparative Examples 4 and 5)
1 g of a mixed liquid (Comparative Example 4) in which equal amounts of Formulation Example 1 (first agent) and Formulation Example 3 (second agent) are mixed, or Formulation Example 2 (first agent) and Formulation Example 3 (second agent) 1 g of a mixed solution (Comparative Example 5) in which an equal amount of each was mixed was uniformly applied individually to the test hair bundle, washed with water and dried.

(Test example: Evaluation of treatment effect)
About the hair bundle just after the process by Examples 1-6 and Comparative Examples 1-5, according to the following evaluation criteria, the flexibility, fingering property, and touch feeling were evaluated by 20 professional panelists. Moreover, the shampoo process was repeated 5 times with respect to the hair bundle after a process, and 20 expert panelists evaluated similarly to the hair bundle immediately after a process. These results are shown in Table 4. For ease of understanding, the processing steps of Examples 1 to 6 and Comparative Examples 1 to 5 are summarized in Table 3.

<Flexibility evaluation criteria>
Number of panelists evaluated as being more flexible than the test hair bundle ◎: 16 or more, ○: 11 to 15, △: 6 to 10 people, ×: 5 or less

<Evaluation criteria for fingertipability>
The number of panelists evaluated as being finger-fitting than the test hair bundle ◎: 16 or more, ○: 11 to 15, △: 6 to 10 people, ×: 5 or less

<Evaluation criteria for touch feeling>
Number of panelists evaluated as having a better feel than the test hair bundle ◎: 16 or more, ○: 11 to 15, △: 6 to 10 people, ×: 5 or less

From Table 4, when the 1st agent and the 2nd agent were used together (Examples 1-6), compared with the case where only the 2nd agent was used (Comparative Examples 1-3), the softness of the hair immediately after processing It can be seen that it is excellent in performance, fingering and touch feeling. Moreover, when the 1st agent and the 2nd agent are applied sequentially (Examples 1-6), compared with the case where the mixed liquid of the 1st agent and the 2nd agent is used (Comparative Examples 4 and 5), the above It can also be seen that the effect is excellent. Furthermore, in Examples 1-6, it turns out that an effect remarkably continues rather than Comparative Examples 1-5.

Claims (3)

A two-component hair treatment agent comprising a first agent and a second agent which are sequentially applied to the hair, and used for hair rinse, hair treatment or hair conditioning,
The first agent contains at least trimethylglycine and isoprene glycol,
The second agent contains at least a silicone oil and a cationic surfactant, and the silicone oil is at least one selected from the group consisting of a chain silicone, a cyclic silicone and an amino-modified silicone. Agent.   The two-component hair treatment agent according to claim 1, wherein the first agent does not substantially contain a surfactant. The two-component hair treatment agent according to claim 1 or 2 , wherein the second agent further contains a fatty acid ester.