JP5574909B2 - Hair treatment agent - Google Patents

Description

  The present invention relates to a multi-component hair treatment agent comprising two or more hair treatment agents.

  When chemical hair treatment such as permanent wave treatment, straight permanent treatment, and hair dyeing treatment, and physical hair treatment such as daily brushing and blow treatment are performed on the hair, damage is accumulated in the hair. For the purpose of repairing hair in which such damage has accumulated, multi-component hair treatment agents composed of two or more types of hair treatment agents have been developed. For example, Patent Document 1 discloses a multi-agent hair treatment agent comprising a first agent containing amino-modified silicone and a second agent containing an anionic surfactant and a cationic polymer. Patent Document 2 discloses a multi-agent hair treatment agent comprising a first agent containing amino-modified silicone and a second agent containing methylhydrogen polysiloxane.

JP 2010-215541 A JP 2001-226236 A

  By the way, it is known that polyacrylic acid amide is used as a stabilizer, an emulsifier, a thickener or the like, and the present inventors also used polyacrylic acid amide as a second agent used after the first agent. We were developing a multi-component hair treatment agent. In this development, when the second agent was applied to the hair coated with the first agent, particles that could be visually confirmed were sometimes generated. Since this particle may give a bad impression on the feeling of use of the multi-component hair treatment agent, it is desired to prevent the particle precipitation or to suppress the degree of particle precipitation.

  In view of the above circumstances, the present invention is a multi-component hair that can prevent particle precipitation or suppress the degree of particle precipitation when a second agent blended with polyacrylamide is applied after the first agent is applied. The purpose is to provide a treatment agent.

  If the first agent applied to the hair before the second agent blended with polyacrylic acid amide is a quaternary ammonium salt blended, the present inventors form particles when the second agent is applied. Thus, the knowledge that particles are produced was obtained. Moreover, it discovered that the grade of the particle | grain formation could be suppressed by further mix | blending hydrophobized hydroxypropyl methylcellulose with a 2nd agent, and came to complete this invention.

  That is, the multi-component hair treatment agent according to the present invention comprises a first agent and a second agent applied to the hair after the first agent is applied, wherein the first agent is A quaternary ammonium salt (I) is blended, and the second agent is blended with hydrophobized hydroxypropylmethylcellulose and polyacrylamide.

  The blending concentration of the quaternary ammonium salt (I) in the first agent is preferably 7.0% by mass or less. Particles generated when the second agent is applied are produced by the quaternary ammonium salt (I) and polyacrylic acid amide, and the blending concentration of the quaternary ammonium salt (I) in the first agent is small. Since the degree of particle precipitation can be suppressed as much as possible, 7.0% by mass or less is preferable.

  The blending concentration of the quaternary ammonium salt (II) in the second agent is preferably 1.0% by mass or less (including no blending). Where the coexistence of polyacrylic amide and quaternary ammonium salt in the same phase causes particle precipitation, the smaller the compounding concentration of the quaternary ammonium salt (II) in the second agent, the more the degree of particle precipitation can be suppressed. Therefore, 1.0 mass% or less (including no compounding) is preferable.

  The blending concentration of the hydrophobized hydroxypropylmethylcellulose in the second agent is, for example, 1.0% by mass or less.

  The blending concentration of polyacrylamide in the second agent is preferably 3.0% by mass or less. With this blending concentration, it is easy to extend the second agent by hand.

  According to the multi-component hair treatment agent of the present invention, since the hydrophobized hydroxypropylmethylcellulose is blended with the second agent together with the polyacrylic acid amide, the quaternary ammonium salt (I) is blended with the first agent. In addition, the degree of particle precipitation due to the application of the second agent can be suppressed.

Based on the multi-component hair treatment agent of this embodiment, the present invention will be described below.
The multi-component hair treatment agent of this embodiment includes a first agent that is a hair treatment agent applied to hair, and a second agent that is a hair treatment agent applied to hair after the first agent. Moreover, the multi-component hair treatment agent of this embodiment may be provided with another hair treatment agent, for example, may be provided with the post-treatment agent applied to hair after the 2nd agent.

(First agent)
The first agent in the present embodiment is a mixture of water and quaternary ammonium salt (I) (the concentration of water in the first agent is, for example, 60 mass% or more and 95 mass% or less). Moreover, a known hair treatment agent raw material is appropriately blended with the first agent as an optional raw material.

  The quaternary ammonium salt (I) blended in the first agent is one or more selected from known quaternary ammonium salts.

  Examples of the quaternary ammonium salt (I) include a mono long-chain alkyltrimethylammonium salt (Ia) represented by the following formula (Ia) and a dilong-chain alkyldimethylammonium salt (Ib) represented by the following formula (Ib). ), Long-chain alkoxyalkyltrimethylammonium salts.

[In the above formula (Ia), R ¹ represents an alkyl group having 12 to 22 carbon atoms (usually 16 to 22 carbon atoms), and X represents chlorine, bromine, iodine or the like. ]

[In the above formula (Ib), R ² represents an alkyl group having 12 to 22 carbon atoms (usually 16 or more and 22 or less), R ³ represents an alkyl group having 12 to 22 carbon atoms (usually 16 or more and 22 or less), X represents chlorine, bromine, iodine or the like. ]

  Examples of the mono long-chain alkyltrimethylammonium salt (Ia) include lauryltrimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, behenyltrimethylammonium chloride, and behenyltrimethylammonium methosulfate. Examples of the di long-chain alkyldimethylammonium salt (Ib) include dicetyldimethylammonium chloride, distearyldimethylammonium chloride, and dicocoyldimethylammonium chloride. Examples of the long-chain alkoxyalkyltrimethylammonium salt include stearoxypropyltrimethylammonium chloride.

  The blending concentration of the quaternary ammonium salt (I) in the first agent of the present embodiment is set as appropriate. To suppress the degree of particle precipitation when the second agent is applied, 7.0 is used. The mass% or less is good, 5.0 mass% or less is preferable, and 4.0 mass% or less is more preferable. Moreover, the minimum of this mixing | blending density | concentration is 0.1 mass%, for example, and is 1.0 mass% normally.

  The optional raw material for the first agent is appropriately selected from known raw materials for hair treatment agents. The optional raw materials are cationic surfactants, nonionic 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 the optional raw materials, higher alcohols are versatile when you want to increase viscosity adjustment and stability of emulsification, and lower alcohols are versatile when you want to increase the solubility of quaternary ammonium salt (I) in water. Silicone is versatile when it is desired to improve the feel of hair.

  When the higher alcohol is blended with the first agent, examples of the higher alcohol include cetanol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, and myristyl alcohol, and have 16 to 22 carbon atoms. Straight chain saturated alcohols are preferred. One or two or more higher alcohols may be blended in the first agent of the present embodiment, and the blending concentration of the higher alcohol is appropriately set. For example, 3.0 mass% or more and 12.0 mass% or less. It is.

  When a lower alcohol is blended in the first agent, examples of the lower alcohol include ethanol and isopropyl alcohol. One or two or more lower alcohols may be blended in the first 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.

  When silicone is blended in the first agent, examples of the silicone include cyclomethicones such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; dimethiconol; dimethicones such as methylpolysiloxane and highly polymerized methylpolysiloxane; And amodimethicone such as aminoethylaminopropylsiloxane / dimethylsiloxane copolymer and aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer. One or two or more types of silicone may be blended in the first 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.

  The first agent of the present embodiment may be an O / W emulsion, and the emulsion may be a cream-like one that can be discharged from a commercially available pump-type container. The viscosity of the creamy first agent is, for example, 25 ° C. using a B-type viscometer, rotor No. The value after 60 seconds measured at 4, 12 rpm is 6000 mPa · s or more and 13000 mPa · s or less.

  Moreover, if pH in the 1st agent of this embodiment is made alkaline, hair will swell easily and the penetration property to the hair inside of the 1st agent component or the 2nd agent component will increase. The pH at 25 ° C. is, for example, 8.0 or more and 11.0 or less, and usually 9.0 or more and 10.0 or less. In order to adjust the pH of the first agent to be alkaline, 2-amino-2-methyl-1-propanol, sodium hydroxide, potassium hydroxide, or the like may be used.

(Second agent)
The 2nd agent in this embodiment is what hydrophobized hydroxypropyl methylcellulose and polyacrylic acid amide were blended with water (the blending concentration of water in the 2nd agent is 60 mass% or more and 95 mass% or less, for example). ). In addition, similar to the first agent, a known hair treatment agent raw material is appropriately blended with the second agent as an optional raw material.

  Hydrophobized hydroxypropylmethylcellulose blended in the second agent is produced by hydroxypropylmethylcellulose and a long-chain alkyl glycidyl ether through a ring-opening reaction of a glycidyl group in the long-chain alkyl glycidyl ether. In addition, carbon number of the long chain alkyl group in the said long chain alkyl glycidyl ether is 16 or more and 22 or less, for example.

  Examples of the hydrophobized hydroxypropyl methylcellulose include 3-hexadecyloxy-2-hydroxypropyl 2-hydroxypropylmethylcellulose, 3-octadecyloxy-2-hydroxypropyl 2-hydroxypropylmethylcellulose, 3-docosyloxy-2-hydroxypropyl 2 -Hydroxypropyl methylcellulose is mentioned.

  An example of a commercially available product of hydrophobized hydroxypropylmethylcellulose is 3-octadecyloxy-2-hydroxypropyl 2-hydroxypropylmethylcellulose (designated name: stearoxyhydroxypropylmethylcellulose) is “Sangelose” from Daido Kasei Kogyo Co., Ltd. Sold under the trade name.

  The blending concentration of the hydrophobized hydroxypropylmethylcellulose in the second agent of this embodiment is not particularly limited, but is preferably 1.0% by mass or less, and preferably 0.5% by mass or less. By setting the content to 1.0% by mass or less, a viscosity that can be easily applied to hair can be maintained. Moreover, if the blending concentration of the hydrophobized hydroxypropylmethylcellulose is less than 0.2% by mass, it is possible to suppress a finger-like decrease in slipperiness of hair treated with the multi-component hair treatment agent of the present embodiment. The lower limit of the blending concentration is, for example, 0.1% by mass because the degree of particle precipitation suppression is reduced if the concentration is too low.

Polyacrylic acid amide to be incorporated into the second agent in this embodiment is a polymer of acrylic acid amide.

  The blending concentration in the second agent of polyacrylic amide is not particularly limited. In order to suppress particle formation when the second agent is applied to the hair, the blending concentration of polyacrylic amide is preferably 3.0% by mass or less, preferably 1.0% by mass or less, and 0.5% by mass. The following is more preferable. On the other hand, the lower limit of the blending concentration of polyacrylic acid amide is not particularly limited, but is 0.1% by mass, for example.

  The optional raw material for the second agent is appropriately selected from known raw materials for hair treatment agents. The optional raw materials are cationic surfactants, nonionic surfactants, ester oils, silicones, lower alcohols, polyhydric alcohols, higher alcohols, sugars, fats, fatty acids, hydrocarbons, waxes, polymer compounds, amino acids, animal and plant extracts , Microorganism-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, ultraviolet absorbers, and the like.

  When a compound that becomes a cation ion such as a cationic surface activity is used as an optional raw material for the second agent, particles are formed with such a compound and polyacrylic acid amide. Therefore, when using the compound used as a cation ion as an arbitrary raw material, it is so preferable that the compounding density | concentration of this compound is made low.

  When one or two or more quaternary ammonium salts (II) selected from known quaternary ammonium salts are used as optional raw materials, the blending concentration of the quaternary ammonium salt (II) in the second agent is 1.0% by mass. The following is preferable, 0.5 mass% or less is more preferable, and 0.3 mass% or less is still more preferable.

  The nonionic surfactant is versatile when it is desired to stabilize the emulsion when the second agent is used as an emulsion. Nonionic activators 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 fatty acid Examples include esters, polyglycerol fatty acid esters, and sucrose fatty acid esters. One or two or more kinds of nonionic surfactants may be blended in the second agent of the present embodiment, and the blending concentration of the nonionic surfactant is appropriately set. 0% by mass or less.

  When the ester oil is blended with the second agent, examples of the ester oil include 2-ethylhexyl neopentanoate, isononyl neopentanoate, isodecyl neopentanoate, 2-ethylhexyl 2-ethylhexanoate, isononyl 2-ethylhexanoate, 2 -Isodecyl ethylhexanoate, cetyl 2-ethylhexanoate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl isononanoate, isopropyl myristate, myristyl myristate, octyldodecyl myristate, isopropyl palmitate, cetyl palmitate, stearic acid Butyl, cholesteryl stearate, ethyl isostearate, isopropyl isostearate, hexyl isostearate, isocetyl isostearate, ethyl oleate, di-2 Ethylene glycol ethylhexanoate, ethylene glycol dioleate, di (capryl / capric acid) propylene glycol, propylene glycol dioleate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, 2-octyldodecyl dimethyloctanoate, Examples include myristyl lactate, trioctyldodecyl citrate, diisostearyl malate, di-2-ethylhexyl succinate, and diisobutyl adipate. One or two or more ester oils may be blended in the second agent of the present embodiment, and the blending concentration of the ester oil is appropriately set, and is, for example, 0.5% by mass or more and 12% by mass or less. .

  When silicone is blended in the second agent of this embodiment, examples of the silicone include cyclomethicone such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; dimethiconol; methylpolysiloxane, highly polymerized methylpolysiloxane, and the like. Dimethicone; amodimethicone such as aminoethylaminopropylsiloxane / dimethylsiloxane copolymer and aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer; One or two or more types of silicone may be blended in the second 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.

  When methylpolysiloxane is blended in the second agent, it is preferable to blend a branched lower fatty acid and a branched lower alcohol ester (II), which are ester oils, in order to increase the dispersibility of the methylpolysiloxane.

The methyl polysiloxane blended with the ester (II) has an average degree of polymerization of 3 or more and less than 650. This methylpolysiloxane preferably has a kinematic viscosity at 25 ° C. of 10 mm ² / s or more and 100 mm ² / s or less as confirmed by the first method of the cosmetic raw material standard general test method, and 15 mm ² / s or more and 70 mm ² / s or less. Are preferred. In addition, if the blending concentration of methylpolysiloxane in the second agent of this embodiment is 1.0% by mass or more, it follows the finger with a slipperiness of hair treated with the multi-component hair treatment agent of this embodiment. It is advantageous. The upper limit of the blending concentration is, for example, 5.0% by mass.

  The branched lower fatty acid for constituting the ester (II) is a monocarboxylic acid and is preferably a saturated one having 5 to 10 carbon atoms. Examples of the branched lower fatty acid include neopentanoic acid, 2-ethylhexanoic acid, and isononanoic acid. Further, the branched lower alcohol for constituting the ester (II) is a monohydric alcohol and is preferably a saturated one having 6 to 10 carbon atoms. Examples of the branched lower alcohol include 2-ethylhexyl alcohol, isononyl alcohol, and isodecyl alcohol. The compounding concentration of ester (II) in the second agent of the present embodiment is, for example, from 1.0% by mass to 15% by mass. In order to increase the dispersibility of polymethylsiloxane, the amount of ester (II) is preferably higher than that of polymethylsiloxane. “Methylpolysiloxane blending concentration / ester (II) blending concentration” is, for example, 0.70 or less is good.

  When a lower alcohol is blended with the second agent of this embodiment, examples of the lower alcohol include ethanol and isopropyl alcohol. One or more lower alcohols may be blended in the second agent of the present embodiment, and the blending concentration of the lower alcohol is, for example, 0.1% by mass or more and 3.0% by mass or less.

  Moreover, when mix | blending a polyhydric alcohol with the 2nd agent of this embodiment, as this polyhydric alcohol, for example, ethylene glycol, 1,2-propylene glycol, 1,3-butylene glycol, dipropylene glycol, glycerin, Diglycerin is mentioned. One or more polyhydric alcohols may be blended in the second agent of the present embodiment, and the blending concentration of the polyhydric alcohol is, for example, 0.01% by mass or more and 1.0% by mass or less.

  The second 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 viscosity of such creamy second agent is, for example, 25 ° C. using a B-type viscometer, rotor No. The value after 60 seconds measured at 4, 12 rpm is 6000 mPa · s or more and 13000 mPa · s or less.

  The pH in the second agent of the present embodiment is preferably acidic to neutral. The pH at 25 ° C. is, for example, 5.0 or more and 7.5 or less.

(Post-treatment agent)
The post-treatment agent in the present embodiment is a mixture of a known hair treatment agent raw material together with water (the concentration of water in the post-treatment agent is, for example, 65% by mass or more and 90% by mass or less). This hair treatment agent raw material is a cationic surfactant, nonionic surfactant, ester oil, silicone, lower alcohol, polyhydric alcohol, higher alcohol, saccharides, fats and oils, fatty acids, hydrocarbons, waxes, polymer compounds, amino acids, animals and plants Extracts, microorganism-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, ultraviolet absorbers and the like.

  Examples of the combination of raw materials for the post-treatment agent to be blended in water include quaternary ammonium salts, higher alcohols, lower alcohols, and silicones.

  When a quaternary ammonium salt is added to the post-treatment agent, examples of the quaternary ammonium salt include lauryltrimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, behenyltrimethylammonium chloride, behenyltrimethyl. Mono long-chain alkyltrimethylammonium salts such as ammonium methosulphate; Dilong-chain alkyldimethylammonium salts such as dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dicocoyldimethylammonium chloride; Long chains such as stearoxypropyltrimethylammonium chloride And alkoxyalkyltrimethylammonium salts. One or two or more quaternary ammonium salts may be added to the post-treatment agent, and the concentration of the quaternary ammonium salt is appropriately set. For example, it is 0.1% by mass or more and 7.0% by mass or less. It is.

  When a higher alcohol is added to the post-treatment agent, examples of the higher alcohol include cetanol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, and myristyl alcohol. One or two or more higher alcohols may be blended in the post-treatment agent. The blending concentration of the higher alcohol is appropriately set, and is, for example, 3.0% by mass or more and 10.0% by mass or less.

  When a lower alcohol is added to the post-treatment agent, examples of the lower alcohol include ethanol and isopropyl alcohol. One or two or more lower alcohols may be blended in the post-treatment agent. The blending concentration of the lower alcohol is appropriately set, and is, for example, 0.5% by mass or more and 3.0% by mass or less.

  When silicone is added to the post-treatment agent, examples of the silicone include cyclomethicone such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; dimethiconol; dimethicone such as methylpolysiloxane and highly polymerized methylpolysiloxane; And amodimethicone such as aminoethylaminopropylsiloxane / dimethylsiloxane copolymer and aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer. One or two or more types of silicone may be blended in the post-treatment agent, and the blending concentration is appropriately set, and is, for example, 1.0% by mass or more and 10.0% by mass or less.

  The post-treatment agent 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 viscosity of such creamy second agent is, for example, 25 ° C. using a B-type viscometer, rotor No. The value after 60 seconds measured at 4, 12 rpm is 10000 mPa · s or more and 25000 mPa · s or less.

  Moreover, the pH in the second agent of the present embodiment is preferably acidic. The pH at 25 ° C. is, for example, 4.5 or more and 6.5 or less.

(how to use)
The multi-component hair treatment agent of this embodiment is used by applying the first agent to the hair and applying the second agent to the hair in a state where the first agent remains. When using a post-treatment agent, it is used by applying the post-treatment agent to the hair with or without washing the hair coated with the second agent. The multi-component hair treatment agent of this embodiment is finally washed away 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)
First agent:
As 1st agent of Examples 1-8 and a comparative example, stearyl trimethyl ammonium bromide 2.5 mass%, stearyl trimethyl ammonium chloride 0.2 mass%, dicocoyl dimethyl ammonium chloride 0.3 mass%, cetanol 3.0 mass% %, Isopropyl alcohol 1.1% by mass, aminoethylaminopropylsiloxane / dimethylsiloxane copolymer 4.0% by mass, aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer 0.4% by mass, 2-amino-2 -An alkaline cream O / W emulsion containing 0.4% by mass of methyl-1-propanol and 0.01% by mass of arginine was prepared.

Second agent:
The 2nd agent of Examples 1-8 which are acidic cream O / W emulsions and a comparative example was prepared by mix | blending the raw material shown in following Table 1 or 2 with water.

Post-treatment agent:
As a post-treatment of Examples 1 to 8 and Comparative Example, cetyltrimethylammonium bromide 2.1% by mass, cetanol 3.5% by mass, stearyl alcohol 1.5% by mass, ethanol 0.9% by mass, poly (tripeptide- 6) 0.0001 mass%, methyl polysiloxane 2.0 mass%, decamethylcyclopentasiloxane 3.4 mass%, highly polymerized methyl polysiloxane (1) 0.6 mass%, aminoethylaminopropylsiloxane / dimethylsiloxane An acidic cream O / W emulsion containing 0.5% by mass of a copolymer was prepared.

(Hair treatment)
After shampooing hair with a coloring history, the appropriate amount of the first agent was applied to the hair and swallowed. Next, an appropriate amount of the second agent of Examples 1 to 8 or Comparative Example was applied to the hair to which the first agent was applied (the second agent applied to the left half of the hair and the second agent applied to the right half of the hair). The agent was different). Thereafter, an appropriate amount of the above-mentioned post-treatment agent was applied to the hair rinsed with warm water, and rinsed with warm water, and the hair was dried with a drier.

(Evaluation)
The following criteria were evaluated for “particle precipitation”, “hair tip fit”, “oiliness to the hair tip”, “softness”, “slippery fingering”, and “separation immediately after production”.

Particle precipitation The 2nd agent was apply | coated to the hair and it evaluated from whether the particle | grains which can be visually confirmed when it swallowed were deposited. The evaluation criteria were as follows.
None: Precipitation of particles was not confirmed.
Present: Precipitation of particles was confirmed.

Comparison of hair tips In Examples 1-4 and Comparative Examples, the comparison example is used as a reference, and in Examples 5-8, the hair after treatment is visually compared, and the comparison of the hair ends is compared. It was evaluated by doing. Evaluation was decided by majority vote of five evaluators, and the evaluation criteria were as follows.
○: The comfort was better than the standard.
―: It was equivalent to the standard.
Δ: Slightly worse than the standard.
X: It was worse than the standard.

Softness Examples 1 to 4 and Comparative Examples are based on Comparative Examples, and Examples 5 to 8 are based on Example 6 to compare the relative softness of the hair when touching the hair after hair treatment. It was evaluated with. Evaluation was decided by majority vote of five evaluators, and the evaluation criteria were as follows.
○: I felt softer than the standard.
―: It was equivalent to the standard.
Δ: Felt slightly softer than the standard.
X: I felt that it was not softer than the standard.

Finger passage with slipperiness Examples 1-4 and Comparative Example are based on the comparative example, Examples 5-8 are based on Example 6, and the finger passage up to the tip of the hair after hair treatment and the finger passage are Evaluation was made by comparing the relative feeling of slipping. Evaluation was decided by majority vote of five evaluators, and the evaluation criteria were as follows.
○: The finger passage to the tip of the hair was good, and the finger passage was slippery than the standard.
―: It was equivalent to the standard.
Δ: The fingering to the tip of the hair was good, but the fingering that slipped from the standard was slightly bad.
X: The feeling of slipping through the fingers up to the hair tips was worse than the standard.

Oiliness to hair tip Using Examples 6 to 8 as a reference, the oily feel to the hair tip felt when touching the hair after hair treatment was evaluated by relative comparison. Here, the “oiliness” means a feeling that the hair surface is thinly coated with oil. Evaluation was decided by majority vote of five evaluators, and the evaluation criteria were as follows.
○: The oily feeling up to the hair tip was more uniform than the standard.
―: It was equivalent to the standard.
(Triangle | delta): The oily feeling of the hair tip was a little worse than the reference | standard.
X: The oiliness of the hair tip was worse than the standard.

Separation immediately after production The second agent after preparation was visually confirmed and evaluated by the presence or absence of oil phase separation. The evaluation criteria were as follows.
None: No oil phase separation was observed.
Yes: Separation of the oil phase was observed.

Table 1 below shows the raw materials and blending concentrations and evaluation results blended in the second agent of Examples 1 to 4 and the comparative example.

  From Table 1 above, the following (A) to (B) can be confirmed. (A) In Examples 1 to 4 in which hydrophobic hydroxypropylmethylcellulose (stearoxyhydroxypropylmethylcellulose) was blended with the second agent, particle precipitation could not be confirmed. (B) From the comparison between Example 3 and Example 4, if the blended concentration of the hydrophobized hydroxypropylmethylcellulose is less than 0.2% by mass, it is possible to suppress deterioration of fingering with softness and slipperiness. Be.

Table 2 below shows the raw materials and blending concentrations blended in the second agent of Examples 5 to 8 and the evaluation results.

Claims (5)

A multi-component hair treatment agent comprising a first agent and a second agent applied to the hair after the first agent is applied,
The first agent contains a quaternary ammonium salt (I),
The multi-agent hair treatment agent, wherein the second agent is a mixture of hydrophobized hydroxypropylmethylcellulose and polyacrylic amide.   The multi-component hair treatment agent according to claim 1, wherein the concentration of the quaternary ammonium salt (I) in the first agent is 7.0% by mass or less.   The multi-component hair treatment agent according to claim 1 or 2, wherein the compounding concentration of the quaternary ammonium salt (II) in the second agent is 1.0% by mass or less (including no compounding).   The multi-component hair treatment agent according to any one of claims 1 to 3, wherein a blending concentration of the hydrophobized hydroxypropylmethylcellulose in the second agent is 1.0% by mass or less.   The multi-component hair treatment agent according to any one of claims 1 to 4, wherein a blending concentration of the polyacrylic amide in the second agent is 3.0% by mass or less.