JP5629427B2 - Hair treatment composition - Google Patents

Description

  The present invention contains a mixed ester of an ester of pentaerythritol and an ester of citric acid, which has an excellent conditioning effect, and prevents hair tangling, giving the hair flexibility, cohesion, moist feeling, slipperiness, gloss, etc. The present invention relates to a mild hair treatment composition that can be applied.

  In recent years, cationic surfactants, glycerides such as ester oils and vegetable oils, silicones, and the like have been used as conditioning agents contained in hair treatment compositions. By using these in combination, it is possible to reduce the friction on the hair surface. However, sufficient effects cannot be obtained with respect to flexibility, moist feeling, and cohesiveness. In order to give satisfaction to the user, the conditioning component is required not only to reduce the friction on the hair surface but also to impart these effects. One of the factors that give these effects is the moisture content of the hair, and the conditioning component is required to have moisture retention performance, film property and slipperiness. Lanolin, which has been used for a long time, satisfies the above-mentioned conditions at a considerable level, and this places importance on the functionality as an emulsification aid. Lanolin is not only irritating as a conditioning agent, but is also associated with BSE problems. Therefore, there is a need for a lanolin substitute that is hypoallergenic and excellent in safety.

As an alternative to lanolin, a mixed ester of a diester of pentaerythritol and a diester of citric acid has been proposed (Patent Document 1). However, this document does not mention the performance as a hair treatment agent, although it is proposed as a sebum substitute having emulsifying ability obtained by mixing glycerides and surfactants with this mixture instead of the mixed ester alone. A treatment agent including hair has also been proposed (Patent Document 2). However, the treatment agent described in the patent document has not yet been satisfactory in terms of long-term stability. Furthermore, a hair treatment agent containing a diester of pentaerythritol has also been proposed (Patent Document 3). However, the hair treatment agent has a high melting point as a lanolin substitute, and it is still not fully satisfactory particularly for damaged hair subjected to permanent wave treatment or hair color treatment. Furthermore, the use of a mixed ester of pentaerythritol and citric acid as an emulsifier has been proposed (Patent Documents 4 and 5). However, no mention is made of its use as a conditioning agent.
Japanese Patent Publication No. 3-18668 JP 2005-213265 A JP 2007-1537779 A JP 2004-174494 A Special Table 2002-523340

  The present invention has an excellent conditioning effect, prevents hair entanglement, and imparts softness, cohesiveness, moist feeling, slipperiness, gloss, etc. to the hair treatment composition with low irritation and excellent safety The issue is to provide goods.

The present inventor has conducted intensive studies in order to solve the above problems, C 8 _-C 22 _- and esters having 2 or more hydroxyl groups of fatty acids with pentaerythritol, C 8 _-C 22 _- fatty alcohols with citric It has been found that the above-mentioned problems can be solved by using a specific mixed ester with an acid and an ester having one or more carboxylic acid groups in the hair treatment composition, and the present invention has been completed.
That is, the present invention provides a hair treatment composition, C 8 _-C 22 _- 1 or more carboxylic of fatty alcohols with citric acid _- ester having 2 or more hydroxyl groups of fatty acids with pentaerythritol, C 8 _-C 22 The present invention relates to a hair treatment composition containing a mixed ester composed of an equimolar amount with an ester having an acid group, and optionally further containing at least one surfactant.

  The mixed ester contained in the hair treatment agent according to the present invention has a water-holding ability because it retains a hydroxyl group in the molecule, can prevent tangling of the hair, improve combing, and can impart flexibility and cohesion. . In addition, the hair treatment agent according to the present invention can form a film equivalent to a sebum film on the hair surface, and can improve slipperiness and gloss.

  The fatty acid which forms an ester with pentaerythritol used in the present invention has 8 to 22, preferably 12 to 22 carbon atoms. The fatty acid may be a saturated or unsaturated fatty acid and may be a straight or branched chain fatty acid.

  The fatty alcohol which forms an ester with citric acid used in the present invention has 8 to 22, preferably 12 to 22, more preferably 14 to 22 carbon atoms. The fatty alcohol may be a saturated or unsaturated alcohol and may be a linear or branched fatty alcohol.

  The mixed ester of pentaerythritol ester and citric acid ester is a mixed ester composed of equimolar amounts of both. Each of the esters to be mixed may be either a monoester or a diester, but the monoester is more hydrophilic than the diester and has low adhesion to the hair. Among them, 75% or more is an ester which is a diester, and more preferably a diester. Moreover, it is preferable that melting | fusing point is 35-50 degreeC from the good feeling of the finish when the hair treatment agent uses the hair treatment agent by this invention.

  The hair treatment composition according to the present invention preferably contains 0.1 to 20% by weight, more preferably 0.5 to 10% by weight of the above mixed ester, based on the hair treatment composition. If the amount is less than 0.1% by weight, the effects of the present invention may not be exhibited. If the amount is more than 20% by weight, undesirable effects such as stickiness may appear.

  The hair treatment composition according to the present invention may contain at least one surfactant. The surfactant can be a cationic, anionic, nonionic or amphoteric surfactant. These surfactants may be used alone or in any combination of two or more. According to the dosage form, the hair treatment composition according to the present invention may contain these surfactants in an appropriate amount in an appropriate amount.

The cationic surfactant that can be used in the hair treatment agent according to the present invention is not particularly limited as long as it is a cationic surfactant that is usually used in hair treatment agents. Typical examples of cationic surfactants include quaternary ammonium compounds such as steartrimonium chloride and disteardimolinium chloride, and ester quats, especially quaternized fatty acid trialkanolamine ester salts such as dicocoyl. Examples include ethyl hydroxyethylmonium methosulfate. At least one ester group in the molecule and at least one C _{11 -C} 22 _- quaternized ammonium compound having an alkyl or alkenyl group, and at least one C _{11 -C} 22 in the molecule _- alkyl or alkenyl group Preference is given to at least one cationic surfactant selected from the group consisting of quaternized ammonium compounds having:

  In the hair treatment composition according to the present invention, the mixed ester and the cationic surfactant are preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, and particularly preferably 1: 1 to 1: 5. Includes by weight. When the hair treatment composition contains a mixed ester in a ratio exceeding 10: 1, the mixed ester may not be sufficiently emulsified or dispersed. When the hair treatment composition contains a mixed ester at a ratio of less than 1:10, the same effect as the hair treatment composition containing lanolin may not be obtained.

  The anionic surfactant that can be used in the hair treatment agent according to the present invention is not particularly limited as long as it is an anionic surfactant that is usually used in hair treatment agents. Typical examples of anionic surfactants include soap, alkylbenzene sulfonate, alkane sulfonate, olefin sulfonate, alkyl ether sulfonate, glycerol ether sulfonate, α-methyl ester sulfonate, sulfo Fatty acid, alkyl sulfate, fatty alcohol ether sulfate, glycerol ether sulfate, fatty acid ether sulfate, hydroxy mixed ether sulfate, monoglyceride (ether) sulfate, fatty acid amide (ether) sulfate, sulfosuccinate, sulfosuccin Mono- and di-alkyl amidates, sulfotriglycerides, amide soaps, ether carboxylic acids and their salts, fatty acid isethionates, fatty acid sarcosine salts, fatty acid taurides, N-acyl amino acids (eg acyl lactinates, Sill tartrate, acyl glutamates, an acyl aspartate), alkyl oligoglucosides sulfates, protein fatty acid condensates (in particular vegetable products based on wheat) and alkyl (ether) phosphates. When the anionic surfactant has a polyglycol ether chain, it may have a normal homolog distribution, but preferably has a narrow homolog distribution. Preference is given to at least one anionic surfactant selected from the group consisting of acylamino acid salts and derivatives thereof, and sulfosuccinates and derivatives thereof.

  In the hair treatment composition according to the present invention, the mixed ester and the anionic surfactant are preferably 1: 1 to 1:20, more preferably 1: 5 to 1:20, and particularly preferably 1:10 to 1:20. Includes by weight. When the hair treatment composition contains a mixed ester in a ratio exceeding 1: 1, the mixed ester may not be sufficiently emulsified or dispersed. Moreover, when this hair treatment composition contains mixed ester in the ratio smaller than 1:20, the effect equivalent to the hair treatment composition containing lanolin may not be acquired.

  The nonionic surfactant that can be used in the hair treatment agent according to the present invention is not particularly limited as long as it is a nonionic surfactant that is usually used in hair treatment agents. Typical examples of nonionic surfactants include fatty alcohol polyglycol ether, alkylphenol polyglycol ether, fatty acid polyglycol ester, fatty acid amide polyglycol ether, fatty amine polyglycol ether, alkoxylated triglyceride, mixed ether and mixed formal Alkyl (or alkenyl) oligoglycosides that may be partially oxidized, glucuronic acid derivatives, fatty acid-N-alkyl glucamides, protein hydrolysates (especially wheat-based plant products), polyol fatty acid esters, sugar esters Sorbitan esters, polysorbates and amine oxides. When the nonionic surfactant has a polyglycol ether chain, it may have a normal homolog distribution, but preferably has a narrow homolog distribution. It is at least one nonionic surfactant selected from the group consisting of alkyl polyglycosides and derivatives thereof.

  In the hair treatment composition according to the present invention, the mixed ester and the nonionic surfactant are preferably 10: 1 to 1:20, more preferably 5: 1 to 1:10, and particularly preferably 1: 1 to 1: 5. In a weight ratio. When the hair treatment composition contains a mixed ester in a ratio exceeding 10: 1, the mixed ester may not be sufficiently emulsified or dispersed. When the hair treatment composition contains a mixed ester in a ratio of less than 1:20, the same effect as that of a hair treatment composition containing lanolin may not be obtained, and problems such as stickiness may occur. There is.

  The amphoteric surfactant that can be used in the hair treatment agent according to the present invention is not particularly limited as long as it is an amphoteric surfactant that is usually used in hair treatment agents. Typical examples of amphoteric surfactants include aminopropionic acid and aminoglycinic acid. At least one amphoteric surfactant selected from aminopropionic acid derivatives is preferred.

  In the hair treatment composition according to the present invention, the mixed ester and the amphoteric surfactant preferably have a weight of 1: 1 to 1:20, more preferably 1: 5 to 1:20, and particularly preferably 1:10 to 1:20. Include in ratio. When the hair treatment composition contains a mixed ester in a ratio exceeding 1: 1, the mixed ester may not be sufficiently emulsified or dispersed. Moreover, when this hair treatment composition contains mixed ester in the ratio smaller than 1:20, the effect equivalent to the hair treatment composition containing lanolin may not be acquired.

The hair treatment composition according to the present invention can contain, in addition to the above components, other components that are usually used in hair treatment agents as long as the effects of the present invention are not impaired. Examples of other ingredients are as follows:
<Oil component>
・ Higher alcohols such as cetyl alcohol and stearyl alcohol;
・ Higher fatty acids such as myristic acid, palmitic acid, stearic acid;
・ Hydrocarbons such as liquid paraffin, polyisobutene and squalane;
-Waxes such as candelilla wax, carnauba wax, paraffin wax, microcrystalline wax, polyethylene wax;
-Esters such as animal and vegetable oils, isopropyl myristate, cetyl octanoate, isononyl isononanoate;
-Triglycerides such as glyceryl trioctanoate, dimethylpolysiloxane, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, amino-modified silicone, silicone and silicone derivatives such as dimethiconol.

<Polymer component>
-Natural polymers such as guar gum, locust bean gum, xanthan gum, starch, pectin, hyaluronic acid, alginic acid, gelatin, collagen, keratin, polyglutamic acid, polyaspartic acid;
-Cellulosic polymers such as methylcarboxycellulose, methylcellulose, hydroxyethylcellulose;
・ Vinyl polymers, acrylic and methacrylic polymers, cationized polymers, amphoteric polymers, urethane polymers, etc.

<Solvents, auxiliaries and additives>
・ Monosaccharides such as alcohol, polyhydric alcohol, glucose, polysaccharides such as sucrose, vitamins, medicinal ingredients, animal and plant extracts, UV absorbers, powders, preservatives, antioxidants, coloring agents, fragrances, metal sequestering Agent, water, solvent, etc.

  The hair treatment composition according to the present invention can be prepared by mixing the above components by conventional methods. In that case, for example, it is preferable that the oil phase and the aqueous phase are respectively heated to appropriate temperatures and emulsified using a stirrer or a homomixer.

  The hair treatment composition according to the invention may be used in any form for treating hair. For example, it can be used for shampoos, rinses, conditioners, treatments and packs or other non-washing types such as creams, mists and sprays.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention concretely, this invention is not limited by these Examples.

Each component was mix | blended with the composition shown in Table 1-Table 4, and the hair conditioner, the hair cream, and the shampoo were prepared. Their performance was evaluated by the following method based on the hair treatment composition containing lanolin.
Evaluation method The following items were sensorially evaluated by 20 women aged 18 to 55 years using each preparation. The results of the evaluation are shown in each table as an average value of the scores of 20 people.

  Hair treatment compositions were prepared with the compositions shown in Tables 1 to 4. The numerical values for the components in each table are in each case weight percent based on the total hair treatment composition. According to the content of the above-described evaluation test, an evaluation test by a paneler was performed with each Comparative Example 1 as a reference. The results are shown in Tables 1 to 4.

  As is apparent from the above results, the hair treatment composition of the present invention is excellent in flexibility, moist feeling, gloss and the like according to the finger.

Claims (13)

C 8 _-C 22 _- made of equimolar amounts of the ester having 1 or more carboxylic acid groups of fatty alcohols with citric acid _- ester having 2 or more hydroxyl groups of fatty acids with pentaerythritol, C 8 _-C 22 A hair treatment composition containing a mixed ester. C 8 _-C 22 _- is an ester is a diester having two or more hydroxyl groups of fatty acids with pentaerythritol, _C 8 ~C 22 _- ester is a diester having one or more carboxylic acid groups of fatty alcohols with citric acid The hair treatment composition according to claim 1.   The hair treatment composition according to claim 1 or 2, wherein the melting point is 35 ° C to 50 ° C.   The hair treatment composition according to any one of claims 1 to 3, wherein the mixed ester is contained in an amount of 0.1 to 20% by weight.   The hair treatment composition according to any one of claims 1 to 4, further comprising at least one surfactant. The surfactant is a quaternized ammonium compound having at least one ester group and at least one C ₁₁ -C ₂₂ -alkyl group or alkenyl group in the molecule, and at least one C ₁₁ -C _{22-in the} molecule. The hair treatment composition according to claim 5, comprising at least one cationic surfactant selected from the group consisting of quaternized ammonium compounds having an alkyl group or an alkenyl group.   The hair treatment composition according to claim 6, comprising the mixed ester and the cationic surfactant in a weight ratio of 10: 1 to 1:10. Surfactant comprises at least one anionic surfactant selected from acyl amino acid salts and sulfosuccinate or Ranaru group, hair treatment composition according to any of claims 5-7.   The hair treatment composition according to claim 8, comprising a mixed ester and an anionic surfactant in a weight ratio of 1: 1 to 1:20. Surfactants, comprising at least one nonionic surfactant selected from alkyl polyglycosides and passes or Ranaru group, hair treatment composition according to any of claims 5-9.   The hair treatment composition according to claim 10, comprising a mixed ester and a nonionic surfactant in a weight ratio of 10: 1 to 1:20. Surfactant comprising a one amphoteric surfactant even without low, the hair treatment composition according to any of claims 5-11.   The hair treatment composition according to claim 12, comprising a mixed ester and an amphoteric surfactant in a weight ratio of 1: 1 to 1:20.