Conditioning composition

Abstract

To provide a conditioning composition which suppresses buildup and has softness, moist feeling and smooth feeling of hair after drying and has no creakiness during rinsing.SOLUTION: There is provided a conditioning composition which comprises the following components (A)to (C) and no silicone composition. (A) An oil which is liquid at 25°C selected from the group consisting of diethylhexyl succinate, diethyl sebacate or the like. (B) An oil which is pasty at 25°C selected from the group consisting of hexa(hydroxystearate / stearate / rosinic acid)dipentaerythrityl, phytosteryl oleate or the like. (C) An oil which is solid at 25°C and is not a linear saturated higher alcohol selected from the group consisting of stearyl stearate, pentaerythrityl distearate or the like.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a conditioning composition.

Background Art

[0002] In daily hair care, hair cosmetics such as rinses, conditioners, and treatments are widely used to improve the feel of hair after shampooing.

[0003] Regarding these hair cosmetics such as rinses, conditioners, and treatments, various proposals have been made according to the desired hair feel of the user. However, it is known that when a conditioning composition containing a silicone composition is continuously used, build-up occurs and the feel deteriorates, and thus proposals have been made to suppress build-up.

[0004] For example, in order to impart smoothness and suppleness without build-up, a conditioning composition that does not contain a silicone composition and contains a paste oil agent and polyoxypropylene butyl ether has been proposed (Citation Document 1). However, in these conditioning compositions, while it is possible to impart smoothness and suppleness while suppressing build-up, they were not satisfactory in terms of hair softness, moistness, and the squeaking sound during rinsing.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above circumstances, and its purpose is to provide a conditioning composition that suppresses buildup while providing softness, moisture, smoothness, and no squeaky feeling in the hair after drying, as well as no squeaky feeling during rinsing. [Means for solving the problem]

[0007] The inventors, through diligent research to achieve the objectives of the present invention, discovered that by combining a liquid oil at 25°C, a paste-like oil at 25°C, and a solid oil at 25°C (that is not a higher alcohol), a conditioning composition can be obtained that suppresses buildup while providing softness, moisture, smoothness, and no squeaky feeling in the hair after drying, thus completing the present invention.

[0008] The first invention is a conditioning composition characterized by containing the following components (A) to (C) and not containing a silicone composition. (A) A liquid oil at 25°C selected from the group consisting of diethylhexyl succinate, diethyl sebacate, isopropyl myristate, isopropyl hexanoate, cetyl isooctanoate, isodecyl neopentanoate, neopentyl glycol dicaprate, octyldodecanol, and isostearyl isostearate. (B) A paste-like oil at 25°C selected from the group consisting of hexa(hydroxystearate / stearate / rosinate)dipentaerythrityl, phytosteryl oleate, tri(caprylic / capric / myristic / stearic)glyceryl, diglyceryl adipate mixed fatty acid ester, petrolatum, and lanolin. (C) A solid oil at 25°C, selected from the group consisting of stearyl stearate, pentaerythrityl distearate, cetyl palmitate, hydrogenated palm oil, hexa(behenic acid / benzoic acid / ethylhexanoic acid) dipentaerythrityl, paraffin, and cocoa fat, which is not a linear saturated higher alcohol.

[0009] The second invention is, This is a conditioning composition according to the first invention of this application, wherein the content of component (A) is 0.1 to 10.0% by mass, the content of component (B) is 0.1 to 10.0% by mass, and the content of component (C) is 0.1 to 10.0% by mass. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a conditioning composition that suppresses buildup while also providing softness, moisture, smoothness, and lack of stiffness during rinsing after drying. [Modes for carrying out the invention]

[0011] The present invention will be described in detail below.

[0012] In this specification, "suppressing buildup" means preventing a situation where, after repeated use of the conditioning composition, the conditioning composition remains on the hair, causing a gradual deterioration of its texture. In this specification, "hair softness" means the state in which the hair becomes limp when bent. In this specification, "hair moistness" means the state in which the hair feels cool to the touch and is not dry. In this specification, "hair smoothness" means the state in which the hair slides when pinched and pulled, and feels coated and smooth. In this specification, "hair stiffness" means the feeling of resistance when pinched and pulled.

[0013] <Conditioning Composition> The conditioning composition of the present invention can be used in hair rinses, hair conditioners, hair treatments, hair packs, hair creams, leave-on treatments, etc. Furthermore, the conditioning composition of the present invention can be manufactured by conventional methods, and its dosage form is not particularly limited. Specifically, it can be used in appropriate dosage forms such as cream or emulsion. It can also be in aerosol or non-aerosol form, and in the case of non-aerosol, it can take various forms such as squeeze-former and pump-former types.

[0014] The conditioning composition of the present invention is (A) Liquid oil at 25°C (B) Paste-like oil at 25°C (C) Oils that are not linear saturated higher alcohols and are solid at 25°C The present invention is characterized by containing the following. Each component of the conditioning composition of the present invention will be described in detail below.

[0015] <(A) Liquid oil at 25℃> Component (A) used in the conditioning composition of the present invention is an oil that is liquid at 25°C. Being liquid at 25°C means having a melting point at temperatures below 25°C and possessing fluidity. Component (A) is primarily used as a component that contributes to suppressing buildup.

[0016] The liquid oil at 25°C in the present invention is not limited to these, but specifically includes diethylhexyl succinate, diethyl sebacate, isopropyl myristate, isopropyl hexanoate, cetyl isooctanoate, isodecyl neopentanoate, neopentyl glycol dicaprate, octyldodecanol, isostearyl isostearate, mineral oil, and one or more of these can be used in combination. Component (A) may be a commercially available product.

[0017] The amount of component (A) is not particularly limited as long as it can exert the effects of the present invention, but it is preferably 0.1 to 10.0% by mass relative to the conditioning composition. If the amount is 0.1% by mass or more, build-up suppression is good, and if it is 10.0% by mass or less, softness when dry is good.

[0018] <(B) Paste-like oil at 25°C> Component (B) used in the conditioning composition of the present invention is an oily agent in the form of a paste at 25°C. The paste-like (semi-solid) state at 25°C means an oily agent that has a melting point above 25°C and does not completely solidify at 25°C, and is distinguished from liquid oily agents and solid oily agents. Component (B) is mainly used as a component that contributes to the moist feeling of hair when dry.

[0019] The oily agent in the form of a paste at 25°C of the present invention is not limited to these, but specifically includes dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), hexakis (hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl, phytosteryl camellia oil fatty acid, phytosteryl oleate, tri (caprylic acid / capric acid / myristic acid / stearic acid) glyceryl, adipic acid diglyceryl mixed fatty acid ester, petrolatum, lanolin, etc. One or more of these can be used in combination. Component (B) may be a commercially available product.

[0020] The blending amount of component (B) is not particularly limited as long as the effects of the present invention can be exhibited, but it is preferably 0.1 to 10.0% by mass based on the conditioning composition. When the blending amount is 0.1% by mass or more, the moist feeling of hair when dry is good, and when it is 10.0% by mass or less, the smooth feeling of hair when dry is good.

[0021] <Solid oily agent at 25°C that is not a linear saturated higher alcohol> Component (C) used in the conditioning composition of the present invention is a solid oily agent at 25°C. Being solid at 25°C means having a melting point of 26°C or higher and having a certain volume and shape at 25°C or lower. Component (C) is mainly used for contributing to the smooth feeling of hair when dry. Also, linear saturated higher alcohols refer to alcohols having 12 or more carbon atoms and no branches and unsaturations.

[0022] The oils that are solid at 25°C and are not linear saturated higher alcohols in this invention are not limited to these, but specifically include stearyl stearate, pentaerythrityl distearate, cetyl palmitate, hydrogenated palm oil, hexa(behenic acid / benzoic acid / ethylhexanoic acid) dipentaerythrityl, paraffin, cocoa butter, etc., and one or more of these can be used in combination. Component (C) may be a commercially available product.

[0023] The amount of component (C) is not particularly limited as long as it can exert the effects of the present invention, but it is preferably 0.1 to 10.0% relative to the conditioning composition. If the amount is 0.1% by mass or more, the smoothness of the hair when dry will be improved, and if it is 10.0% by mass or less, the softness of the hair when dry will be good.

[0024] In each of the oils (A), (B), and (C), it is preferable to use an ester oil from the viewpoint of not causing squeaking during rinsing.

[0025] Therefore, by combining the above-mentioned specific components (A), (B), and (C), the conditioning composition of the present invention exhibits the effects of suppressing buildup and maintaining the softness, moisture, smoothness, and lack of stiffness during rinsing of hair after drying, thus exhibiting both the inherently contradictory characteristics of suppressing buildup and providing a moderate level of hold.

[0026] This effect is thought to be due to the mutual dissolution of each oil (A), (B), and (C), which reduces buildup by decreasing residue on the hair compared to silicone compositions. On the other hand, it is also hydrophobic, meaning it is not completely washed away, which is thought to contribute to the softness, moisture, and smoothness of the hair after drying, as well as the absence of squeaky feeling during rinsing.

[0027] <Other ingredients> In addition to the above-mentioned components, the conditioning composition of the present invention may also contain other components commonly used in conditioning compositions, as long as they do not impair the effects of the present invention.

[0028] Examples of such ingredients include higher alcohols such as stearyl alcohol and behenyl alcohol; cationic surfactants such as behentrimonium chloride and steartrimonium chloride; high molecular weight compounds such as cationized cellulose and poly(diallyldimethylammonium chloride); anti-dandruff components such as zinc pyrithione and benzalkonium chloride; lower alcohols such as ethanol, methanol, propyl alcohol, and isopropyl alcohol; organic acids such as lactic acid and citric acid; polyols such as DPG and propylene glycol; and other ingredients such as UV absorbers, preservatives, sugars, fragrances, colorants, metal ion sequestering agents, antioxidants, various chemicals, and water. [Examples]

[0029] Next, the conditioning compositions of the present invention will be specifically described by illustrating examples and comparative examples, but the present invention is not limited in any way by these examples. First, the test methods and evaluation methods used in each example will be described.

[0030] (1) Method for evaluating hair buildup Ten trained evaluators evaluated the hair buildup according to the following evaluation criteria. Each 3g of conditioning composition according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1 to 5, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). After rinsing with 40°C water for 10 seconds, the wet hair bundle was combed 20 times, towel-dried for 5 seconds, and then dried with a hairdryer until completely dry. The hair buildup was then evaluated by ten evaluators according to the following evaluation criteria. The score before treatment was set to 5 points, and the average of the scores of the ten evaluators was calculated based on the difference in scores after three treatments. The hair buildup was determined using this average value based on the following scoring criteria.

[0031] <Hair Build-Up Evaluation Criteria> 5 points: I didn't feel any increase in thickness at all. 4 points: I noticed a slight increase in thickness, but it was hardly noticeable. 3 points: I noticed an increase in thickness, but it didn't bother me too much. 2 points: I noticed an increase in thickness, and the thickness was a bit bothersome. 1 point: I felt a significant increase in thickness, and the thickness was quite noticeable.

[0032] <Hair Build-Up Score Criteria> ◎: Excellent... The difference in score before and after processing is less than 1.0 point. ○: Excellent... The difference in score before and after processing is 1.0 point or more, but less than 2.0 points. △: Inferior... The difference in score before and after processing is 2.0 points or more, but less than 3.0 points. ×: Severely inferior... The difference in score before and after processing is 3.0 points or more.

[0033] (2) Method for evaluating the softness of hair when dry 3g of the conditioning composition according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1 to 5, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). After rinsing with 40°C water for 10 seconds, the wet hair bundle was combed 20 times, towel-dried for 5 seconds, and then dried with a hairdryer until it felt completely dry. Ten trained evaluators observed and evaluated the softness of the hair according to the evaluation criteria below, and the average of the sum of the scores of the ten evaluators was calculated. Using this average value, the softness of the hair at the time of rinsing was determined based on the scoring criteria below.

[0034] <Evaluation Criteria for Hair Softness When Dry> 5 points: Very soft 4 points: Quite soft 3 points: Slightly soft 2 points: A little hard 1 point: Quite hard

[0035] <Score criteria for hair smoothness when dry> ◎: Excellent ··· 4.5 points or higher ○: Excellent...3 points or more, less than 4.5 points △: Inferior ····2.0 or higher, less than 3 points ×: Very poor... Less than 2.0 points

[0036] (3) Method for evaluating the moistness of hair when dry Ten trained evaluators evaluated the moistness of the hair (the feeling of coolness as if it contains water when the hair is pinched) according to the evaluation criteria below. 3g of the conditioning composition according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1 to 5, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length), rinsed with 40°C water for 10 seconds, combed the wet hair bundle 20 times, towel-dried for 5 seconds, and then dried the hair bundle with a hairdryer until it felt completely dry. The average of the sum of the scores from the ten evaluators was calculated using this average value to determine the moistness of the hair when dry based on the scoring criteria below.

[0037] <Evaluation Criteria for Hair Moisture Level When Dry> 5 points: When you pinch the hair, it feels cool and not dry. 4 points: When you pinch the hair, it feels slightly cool and not dry. 3 points: The hair feels slightly cool when pinched, but is also slightly dry. Points 2: When you pinch your hair, you hardly feel any coolness, and it feels slightly dry. 1 point: When you pinch your hair, it doesn't feel cool, and it feels dry.

[0038] <Score criteria for hair moisture level when dry> ◎: Excellent ··· 4.5 points or higher ○: Excellent...3 points or more, less than 4.5 points △: Inferior ····2.0 or higher, less than 3 points ×: Very poor... Less than 2.0 points

[0039] (4) Method for evaluating the smoothness of hair when dry Ten trained evaluators evaluated the smoothness of the hair after applying 3g of the conditioning composition according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1 to 5, to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). The hair bundle was then rinsed with 40°C water for 10 seconds, combed 20 times while wet, towel-dried for 5 seconds, and then dried with a hairdryer until completely dry. The smoothness of the hair was then evaluated by ten evaluators according to the evaluation criteria below, and the average of the sum of the ten scores was calculated. The smoothness of the hair after drying was determined based on the scoring criteria below using this average value.

[0040] <Evaluation Criteria for Hair Smoothness When Dry> 5 points: When you pinch and pull the hair, it slides very smoothly and is quite slippery. 4 points: When you pinch and pull the hair, it slips and feels smooth. 3 points: When you pinch and pull the hair, it feels slightly slippery and slightly smooth. Points 2: When you pinch and pull the hair, it doesn't slip too much, and it's not too smooth. 1 point: When you pinch and pull the hair, it doesn't slip or feel smooth.

[0041] <Score criteria for hair moisture level when dry> ◎: Excellent ··· 4.5 points or higher ○: Excellent...3 points or more, less than 4.5 points △: Inferior ····2.0 or higher, less than 3 points ×: Very poor... Less than 2.0 points

[0042] (5) Method for evaluating the absence of squeaking during rinsing Ten trained evaluators evaluated the lack of hair stiffness during rinsing with 40°C water for 10 seconds. Each 3g of the conditioning composition according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1 to 5, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). The hair was then evaluated according to the following evaluation criteria, and the average of the scores from the ten evaluators was calculated. This average value was used to determine the level of stiffness during rinsing based on the following scoring criteria.

[0043] <Evaluation criteria for hair feel during rinsing> 5 points: When you pinch and pull the hair, it slides smoothly and doesn't feel stiff. 4 points: When you pinch and pull the hair, it slips and hardly makes any squeaking noises. 3 points: When you pinch and pull the hair, it slips slightly and doesn't feel too stiff. Points 2: When you pinch and pull the hair, it doesn't slide very smoothly and feels a bit squeaky. 1 point: When you pinch and pull the hair, it doesn't slip, but makes a squeaking sound.

[0044] <Score criteria for hair moisture level when dry> ◎: Excellent ··· 4.5 points or higher ○: Excellent...3 points or more, less than 4.5 points △: Inferior ····2.0 or higher, less than 3 points ×: Very poor... Less than 2.0 points

[0045] Examples 1-32 and Comparative Examples 1-3 Hair conditioners were prepared using conventional methods according to the formulations listed in Tables 1 to 3. Their performance was evaluated for the absence of buildup, softness of hair upon drying, moisturizing effect, smoothness, and lack of stiffness during rinsing. The results are shown in Tables 1 to 3.

[0046] [Table 1]

[0047] [Table 2]

[0048] [Table 3]

[0049] As is clear from Tables 1-3, Examples 1-32, which used the components of the present invention, all showed excellent performance. On the other hand, Comparative Examples 1-3 were inferior in terms of the absence of composition buildup, the softness of the hair when dry, the moist feeling, or the smooth feeling, and thus failed to achieve the objective of the present invention.

[0050] Next, the same evaluations were performed on commercially available product A containing a commercially available silicone composition, commercially available product B not containing a silicone composition, and a conditioner using the present invention. The results are shown in Table 4.

[0051] Commercial product A, which contains a silicone composition, developed buildup, while commercial product B, which does not contain a silicone composition, did not develop buildup but received low ratings in terms of softness, moistness, smoothness when dry, and lack of squeaking when rinsing. Compared to commercial products A and B, the present invention received superior ratings in each of these areas.

[0052] [Table 4]

[0053] The following are other formulation examples of the conditioning composition of the present invention. These formulation examples were also evaluated for the absence of buildup, hair softness upon drying, moisturizing effect, smoothness, and lack of stiffness upon rinsing.

[0054] Formula Example 1: Hair Pack - Amount of Ingredients (by mass) (1) Steartrimonium chloride 3.0 (2) Bis-diglyceryl polyacyladipate-2 2.0 (3) Paraffin 1.0 (4) Pentaerythrityl distearate 1.0 (5) Stearyl alcohol 9.0 (6) Stearyl stearate 1.0 (7) Diethylhexyl succinate 1.0 (8) Vaseline 1.0 (9) Hydroxyethylcellulose 0.4 (10) Glutamic acid 0.1 (11) Sodium glutamate 0.1 (12) Citric acid 0.2 (13) Arginine 0.1 (14) Phenoxyethanol 0.2 (15)Fragrance 0.5 (16) Purified water remainder

[0055] Formula Example 2: Hair Treatment - Amount of Ingredients (by mass) (1) Behenyl PG Trimonium Chloride 3.0 (2) Behenamidopropyl Dimethylamine 1.0 (3) Diethyl sebacate 1.0 (4) Diethylhexyl succinate 1.0 (5) Bis-diglyceryl polyacyladipate-2 1.0 (6) Behenyl alcohol 1.0 (7) Alanine 0.1 (8) Arginine 0.1 (9) Proline 0.1 (10) Serine 0.1 (11) Hydroxyethylcellulose 0.1 (12) Sodium glutamate 0.1 (13) PEG-160M ​​0.1 (14) Lactic acid 0.2 (15) Pentaerythrityl distearate 0.5 (16) Neopentyl glycol dicaprate 0.2 (17) Menthol 0.1 (18) Hydrolyzed conchiolin 0.1 (19) Stearyl alcohol 5.0 (20) Phenoxyethanol 0.2 (21)Fragrance 0.5 (22) Purified water remainder

[0056] Formula Example 3: Hair Conditioner - Amount of Ingredients (by mass) (1) Behenyl PG-trimonium chloride 0.5 (2) Steartrimonium chloride 0.5 (3) Behenamidopropyldimethylamine 0.5 (4) Behentrimonium chloride 0.5 (5) Cetearyl alcohol 3.0 (6) Behenyl alcohol 1.0 (7) Hydrolyzed silk 0.1 (8) Saccharomyces / Rice Bran Ferment Extract 0.1 (9) Hydrolyzed conchiolin 0.1 (10) Nepenthyl glycol dicaprate 0.2 (11) Hydroxyethylcellulose 0.1 (12) Pentaerythrityl distearate 0.2 (13) Glycerin 0.5 (14) Diethylhexyl succinate 0.2 (15) Paraffin 0.2 (16) Lactic acid 0.1 (17) Lactose 0.1 (18) Bis-diglyceryl polyacyladipate-2 0.2 (19) Methylparaben 0.2 (20)Fragrance 0.5 (21) Purified water remainder

[0057] The compositions of these formulation examples were also evaluated for their lack of buildup, softness of hair when dry, moisturizing effect, smoothness, and lack of squeaky feeling during rinsing. All of these properties were excellent, yielding favorable results.

Claims

1. A conditioning composition characterized by containing the following components (A) to (C) and not containing a silicone composition. (A) A liquid oil at 25°C selected from the group consisting of diethylhexyl succinate and diethyl sebacate. (B) A paste-like oil at 25°C selected from the group consisting of hexa(hydroxystearic acid / stearic acid / rosinic acid)dipentaerythrityl and bis-diglyceryl polyacyladipate-2 (C) A solid oil at 25°C, selected from the group consisting of stearyl stearate, pentaerythrityl distearate, and cetyl palmitate, which is not a linear saturated higher alcohol.

2. The conditioning composition according to claim 1, wherein the content of component (A) is 0.1 to 10.0% by mass, the content of component (B) is 0.1 to 10.0% by mass, and the content of component (C) is 0.1 to 10.0% by mass.

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