JP2012087081A - Hair treating agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair treating agent of a rinse, a treatment, a conditioner or the like in which hair ends are made to subside, and softness of hairs is good.SOLUTION: The hair treating agent is characterized by blending dimer dilinoleyl dimer dilinoleate, an N-acylamino acid ester, and an ester of a fatty acid and cholesterol.

Description

  The present invention relates to a hair treatment agent that is applied to wet hair after shampooing and used as a rinse, treatment, conditioner, and the like.

  Hair treatment agents applied to shampooed hair such as rinses, treatments, and conditioners are required to have functions and effects such as handling in use and hair feel after use. Under such a demand, Patent Document 1 discloses a treatment in the form of washing away containing an ester of dimer acid and amino-modified silicone and / or sulfonic acid-modified silicone for the purpose of moistening and glossing hair. It is disclosed.

JP-A-2005-213163

  By the way, when various treatments such as hair color treatment and drying treatment with a dryer are performed on the hair, the hair is damaged. In particular, damage to the hair accumulates as it approaches the hair tip, and the extent of damage to the hair tip is large. This damage to the ends of the hair causes badness of the hair, such as the tips of the hair being directed to the outside of the face, and it is required to improve this reduction. In addition, the softness of the hair is generally required.

  In view of the above circumstances, an object of the present invention is to provide a hair treatment agent such as a rinse, a treatment, a conditioner, etc., with which the hair ends are soft and the softness of the hair is good.

  When the present inventors blend dimerinolinoleic acid dimerinolinoleyl, N-acylamino acid ester, and an ester of fatty acid and cholesterol with the hair treatment agent, the hair after treatment is soft and soft. Furthermore, the present inventors have found that the degree of generation of a plurality of hair bundles can be suppressed, and have completed the present invention.

  That is, the hair treatment agent according to the present invention is applied to the hair after shampooing and washed away, and contains dimer dilinoleic acid dimer dilinoleyl, N-acyl amino acid ester, and an ester of fatty acid and cholesterol. It is characterized by that.

  It is preferable that the amount of ester of fatty acid and cholesterol in the hair treatment agent of the present invention is equal to or greater than the amount of N-acyl amino acid ester. In such a blending amount, the suppression to the extent that the hair reaches the tip of the hair, the softness of the hair, and the hair bundle is particularly good.

  The hair treatment agent of the present invention is, for example, an O / W emulsion in which a quaternary ammonium salt, silicone, and a higher alcohol are blended.

  The blending concentration of dimer linoleic acid dimer linoleyl in the hair treatment agent of the present invention is, for example, 0.5% by mass or less. Moreover, the compounding concentration of N-acyl amino acid ester is 0.20 mass% or less, for example, and the compounding concentration of the ester of fatty acid and cholesterol is 0.01 mass% or more and 1.00 mass% or less, for example.

  The hair after the treatment with the hair treatment agent according to the present invention has a good fit to the tip and softness when touched. Moreover, according to the hair treatment agent which concerns on this invention, the grade which the hair bundle in the hair after a process produces can be suppressed.

Based on the hair treatment agent of this embodiment, this invention is demonstrated below.
The hair treatment agent of this embodiment is a mixture of dimer linoleic acid dimer dilinoleyl, N-acyl amino acid ester, and an ester of a fatty acid and cholesterol together with water (the concentration of water in the hair treatment agent) Is, for example, 60% by mass or more and 90% by mass or less.) In addition, a known hair treatment material is optionally added to the hair treatment agent as an optional material.

(Dimer dilinoleic acid dimer dilinoleyl)
Dimer dilinoleic acid dimer dilinoleyl is commercially available, and it is preferable to use this commercially available one. Examples of the commercially available products include “LUSPLAN DD-DA5” manufactured by Nippon Seika Co., Ltd. and “LUSPLAN DD-DA7” manufactured by the same company.

  The blending concentration of dimer linoleic acid dimer linoleyl in the hair treatment agent of this embodiment is preferably 0.01% by mass to 0.5% by mass, and preferably 0.04% by mass to 0.4% by mass. 0.1 mass% or more and 0.3 mass% or less is more preferable. When the blending concentration is 0.01% by mass or more, it is particularly advantageous for the suppression of hair bundles and hair bundles. Moreover, if it is 0.4 mass% or less, it is especially advantageous for suppression of the softness of hair.

(N-acyl amino acid ester)
In the hair treatment agent of this embodiment, one or more selected from monoesters and diesters of N-acylamino acids and alcohols are blended as N-acylamino acid esters.

The acyl group in the N-acyl amino acid ester of the present embodiment is represented by the general formula R ¹ CO— (R ¹ represents a linear or branched hydrocarbon having 8 to 22 carbon atoms). Examples of the fatty acid for deriving the R ¹ CO— group include lauric acid, palmitic acid, stearic acid, oleic acid and the like.

  Examples of the N-acyl amino acid for constituting the N-acyl amino acid ester include N-acyl-2-methylalanine and N-acyl glutamic acid.

  Examples of the alcohol for constituting the N-acyl amino acid ester include sterols such as cholesterol and phytosterol; linear or branched higher alcohols having 8 to 24 carbon atoms such as behenyl alcohol and 2-octyldodecyl alcohol. ;

  Examples of the N-acyl amino acid monoester include myristoylmethyl-β-alanine (phytosteryl / decyltetradecyl). Examples of the N-acylamino acid diester include, for example, lauroyl glutamate di (cholesteryl / octyldodecyl), lauroyl glutamate di (cholesteryl / behenyl / octyldodecyl), lauroyl glutamate di (phytosteryl / octyldodecyl), and lauroyl glutamate di (octyl). Dodecyl / phytosteryl / behenyl), dilauroyl glutamate (octyldodecyl / phytosteryl / behenyl).

  The blending concentration of the N-acyl amino acid ester in the hair treatment agent of this embodiment is preferably 0.20% by mass or less, preferably 0.15% by mass or less, and more preferably 0.13% by mass or less. If the concentration is 0.20% by mass or less, it is advantageous for all of the comfort to the hair tips, the softness of the hair, and the suppression of the hair bundle. Although the minimum of the mixing | blending density | concentration of N-acyl amino acid ester is not specifically limited, For example, it is 0.001 mass%.

(Ester of fatty acid and cholesterol)
The hair treatment agent of this embodiment is blended with one or more selected from esters of fatty acids and cholesterol.

  Examples of the ester of fatty acid and cholesterol include cholesteryl stearate, cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl oleate, lanolin fatty acid cholesteryl, soft lanolin fatty acid cholesteryl, and hard lanolin fatty acid cholesteryl.

  In the hair treatment agent of this embodiment, it is preferable that the amount of ester of fatty acid and cholesterol is equal to or greater than the amount of N-acyl amino acid ester. In addition, the blending concentration of the ester of fatty acid and cholesterol in the hair treatment agent is preferably 0.01% by mass or more and 1.00% by mass or less, more preferably 0.05% by mass or more and 0.50% by mass or less. More preferably, it is 0.77 mass% or more and 0.30 mass% or less.

(Optional raw material)
What is blended in the hair treatment agent of the present embodiment as an optional raw material other than dimer linoleic acid dimer dilinoleyl, N-acyl amino acid ester, and ester of fatty acid and cholesterol is appropriately selected from known hair treatment raw materials Is done. The optional raw materials are cationic surfactants, nonionic surfactants, amphoteric surfactants, higher alcohols, lower alcohols, polyhydric alcohols, sugars, ester oils, fats and oils, fatty acids, hydrocarbons, waxes, silicones, polymer compounds, Amino acids, animal and plant extracts, microorganism-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, ultraviolet absorbers and the like.

  Among optional raw materials, quaternary ammonium salts, higher alcohols, and silicones have high versatility as well as known hair treatment agents. Oils and ester oils are versatile when it is desired to replenish oil to the hair and increase the flexibility of the hair, and lower alcohols are versatile when it is desired to increase the solubility of the surfactant in water. Yes, nonionic surfactants are versatile when it is desired to form stable emulsions.

  Examples of the quaternary ammonium salt include dilong-chain alkyldimethylammonium salts such as distearyldimethylammonium chloride, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride; behenyltrimethylammonium chloride, behenyltrimethylammonium methosulfate, stearyltrimethylammonium. Mono long-chain alkyltrimethylammonium salts such as chloride, stearyltrimethylammonium bromide, cetyltrimethylammonium bromide; and long-chain alkoxyalkyltrimethylammonium salts such as stearoxypropyltrimethylammonium chloride. One or two or more quaternary ammonium salts may be blended in the hair treatment agent of this embodiment, and the blending concentration of the quaternary ammonium salt is appropriately set. 0% by mass or less.

  Examples of the higher alcohol include cetanol, isocetyl alcohol, cetostearyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, and myristyl alcohol, and a linear saturated alcohol having 16 to 22 carbon atoms is preferable. One or two or more higher alcohols may be blended in the hair treatment agent of the present embodiment, and the blending concentration of the higher alcohol is appropriately set. For example, 5.0% by mass or more and 12.0% by mass or less. It is.

  Examples of silicone include cyclomethicone such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; dimethiconol; dimethicone such as methylpolysiloxane and highly polymerized methylpolysiloxane; aminoethylaminopropylsiloxane / dimethylsiloxane copolymer, amino And amodimethicone such as ethylaminopropylmethylsiloxane / dimethylsiloxane copolymer. One or two or more types of silicone may be blended in the hair treatment agent of the present embodiment, and the blending concentration is appropriately set, and is, for example, 1.0% by mass or more and 10.0% by mass or less.

  Examples of the oils and fats include almond oil, avocado oil, olive oil, shea fat oil, evening primrose oil, camellia oil, peanut oil, and rosehip oil. One or two or more types of fats and oils may be blended in the hair treatment agent of the present embodiment, and the blending concentration of the fats and oils is appropriately set, and is, for example, 0.5% by mass or more and 2.0% by mass or less. .

  Examples of ester oils include ethyl oleate, isopropyl myristate, isopropyl palmitate, butyl stearate, cetyl palmitate, myristyl myristate, octyldodecyl myristate, isopropyl isostearate, ethyl isostearate, cetyl 2-ethylhexanoate Hexyl isostearate, ethylene glycol di-2-ethylhexanoate, ethylene glycol dioleate, di (capryl / capric acid) propylene glycol, propylene glycol dioleate, trimethylolpropane triisostearate, pentaerythritol tetra2-ethylhexanoate Isocetyl isostearate, 2-octyldodecyl dimethyloctanoate, myristyl lactate, trioctyldodecyl citrate, phosphorus Diisostearyl, succinate di-2-ethylhexyl, diisobutyl adipate, stearic acid cholesteryl. One or two or more ester oils may be blended in the hair treatment agent of the present embodiment, and the blending concentration of the ester oil is appropriately set. For example, 0.5 mass% or more and 7.0 mass% or less. It is.

  Examples of the lower alcohol include ethanol and isopropyl alcohol. One or two or more lower alcohols may be blended in the hair treatment agent of the present embodiment, and the blending concentration of the lower alcohol is appropriately set. For example, 0.5% by mass to 3.0% by mass It is.

  Nonionic surfactants include, for example, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol tetra fatty acid ester, glycerin fatty acid ester, sorbitan Examples include fatty acid esters, polyglycerin fatty acid esters, and sucrose fatty acid esters. One or two or more kinds of nonionic surfactants may be added to the hair treatment agent of the present embodiment, and the concentration of the nonionic surfactant is appropriately set. 0% by mass or less.

(Dosage form, pH, viscosity)
The hair treatment agent of the present embodiment may be an O / W emulsion, and the emulsion may be a cream that can be discharged from a commercially available pump-type container. The pH of the treatment agent may be acidic, for example, 5.0 or more and 6.5 or less. The viscosity is, for example, 25 ° C. using a B-type viscometer, rotor No. The value after 60 seconds measured at 4 and 12 rpm is 15000 mPa · s to 45000 mPa · s.

(how to use)
The hair treatment agent of this embodiment is applied to wet hair after washing with a shampoo containing an anionic surfactant and the like. And it applies by applying the hair treatment agent of this embodiment to the hair, and washing the hair after the said application with water.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless departing from the gist of the present invention.

(Hair treatment agent)
The raw materials shown in Table 1 below were blended in water to prepare hair treatment agents (cream emulsions) of Examples 1 to 3 and Comparative Example 1. In addition, dimer dilinoleic acid dimer dilinoleyl, lauroyl glutamate di (cholesteryl / octyldodecyl), and soft lanolin fatty acid cholesteryl were blended so as to be included in the oil phase.

(Hair treatment)
After shampooing hair having a coloring history, about 3 g of the hair treatment agent prepared above was discharged from a pump-type container, spread on the palm, applied, and swallowed. At this time, the hair treatment agent applied to the left half of the hair was different from the hair treatment agent applied to the right half. Thereafter, the hair treatment agent was washed away by rinsing the hair with warm water and dried with a dryer.

(Evaluation)
The “packing up to the tip of hair” was evaluated by visualizing the hair. “Softness” was evaluated by touching the hair. Further, “inhibition of the hair bundle” was evaluated by visualizing the hair. The specific evaluation is a relative evaluation, the best one is “◎”, the next best is “○”, the next best is “△”, the worst Was marked “x”.

The evaluation results of Examples 1 to 3 and Comparative Example 1 are shown in Table 1 below.

  In Table 1 above, the following (A) to (B) can be confirmed. (A) Dimerinolinoleic acid dimerinolinole, N-acyl amino acid ester lauroylglutamate di (cholesteryl / octyldodecyl), and soft lanolin fatty acid cholesteryl which is an ester of fatty acid and cholesterol The evaluation result of 3 was that all the evaluation results were better than those of Comparative Example 1. (B) By contrast with Examples 1-2 and Example 3, if the compounding amount of the ester of fatty acid and cholesterol is equal to or greater than the compounding amount of the N-acylamino acid ester, all the evaluation items were better. thing.

  Apart from the hair treatment agents of Examples 1 to 3 and Comparative Example 1, the raw materials shown in Table 2 below were blended in water to prepare hair treatment agents (cream emulsions) of Comparative Examples 2 to 5. Moreover, the raw material shown in following Table 3 was mix | blended with water, and the hair treatment agent (cream emulsion) of Comparative Examples 6-7 was prepared. Dimer dilinoleic acid dimer dilinoleyl, polyisoglyceryl triisostearate, hydrogenated isostearic acid castor oil, (diglycerin / dilinoleic acid / hydroxystearic acid) copolymer in the preparation of the hair treatment agents of Comparative Examples 2-7, or Myristoylmethyl-β-alanine (phytosteryl / decyltetradecyl) was formulated to be included in the oil phase.

  Hair treatment was performed using the hair treatment agents of Comparative Examples 2-7. The object in this hair treatment was a hair bundle prepared by cutting out about 15 cm from the hair with a history of coloring treatment, and the hair treatment method was in accordance with the hair treatment using the hair treatment agent of Example 1 above.

  Evaluation in the hair treatment of Comparative Examples 2 to 7 was performed separately for Comparative Examples 2 to 5 shown in Table 2 below and Comparative Examples 6 to 7 shown in Table 3 below. And in the evaluation in Comparative Examples 2-5, the comparative example 2 was made into the reference | standard, the thing worse than a reference | standard was set to "(triangle | delta)", and the worse thing was set to "x". In the evaluations in Comparative Examples 6 to 7, the comparative example 6 was used as a reference, “◯” was better than the reference, and “X” was worse than the reference.

The evaluation results of Comparative Examples 2 to 5 are shown in Table 2 below, and the evaluation results of Comparative Examples 6 to 7 are shown in Table 3 below.

Claims (5)

A hair treatment agent applied to shampooed hair and washed away,
A hair treatment agent comprising dimerlinoleic acid dimerlinoleyl, an N-acylamino acid ester, and an ester of a fatty acid and cholesterol.   The hair treatment agent according to claim 1, wherein the compounding amount of the ester of fatty acid and cholesterol is not less than the compounding amount of the N-acyl amino acid ester.   The hair treatment agent according to claim 1 or 2, which is an O / W emulsion in which a quaternary ammonium salt, silicone, and a higher alcohol are blended.   The hair treatment agent according to any one of claims 1 to 3, wherein a concentration of the dimer linoleic acid dimer linoleyl is 0.5% by mass or less. The blending concentration of the N-acyl amino acid ester is 0.20% by mass or less, and the blending concentration of the ester of the fatty acid and cholesterol is 0.01% by mass or more and 1.00% by mass or less. The hair treatment agent according to 1.