Hair conditioning composition

Abstract

To provide a hair conditioning composition that reduces a feeling of the composition left in the hair during rinsing, smoothens the hair during rinsing and blow-drying, and keeps the hair together after blow-drying.SOLUTION: A hair conditioning composition contains (A) an aliphatic amine represented by a formula: NR5R6R7 (at least one of R5, R6, and R7 has a C12-30 alkyl group, optionally having an amide group, a hydroxy group, or an alkylene glycol group, with a remainder independently selected from a C1-3 alkyl group or alkylene glycol group), and (B) an oil solution that is liquid at 20°C. The hair conditioning composition has a pH of 6.0 or more. Preferably, the pH is 6.5 or more, and the component (B) is ester oil.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a hair 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 feel of hair desired by users. However, although they can meet the market requirements in terms of smoothness during drying and neatness after drying, the smoothness during rinsing tends to be overlooked.

[0004] For example, a conditioning composition containing a fatty acid amine and a liquid oil has been proposed for a smooth, non-greasy, soft and good finish (Patent Document 1). However, in these conditioning compositions, while they can impart smoothness and neatness after drying, they were not satisfactory in terms of smoothness during rinsing.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In conventional hair conditioning compositions, the remaining feeling during rinsing, smoothness during drying, and neatness after drying have already been found, but in addition, they could not兼备 the smoothness during rinsing.

[0007] Therefore, the object of the present invention is to provide a hair conditioning composition that also provides a pleasant feeling when rinsing, smoothness when rinsing, smoothness when blow-drying, and manageability after drying. [Means for solving the problem]

[0008] The inventors, through diligent research to achieve the objectives of the present invention, discovered that by containing an aliphatic amine and a liquid oil at a pH of 6.0 or higher, a hair conditioning composition can be obtained that possesses a pleasant after-rinse feel, smoothness during rinsing, smoothness during blow-drying, and manageability after drying. Thus, the present invention was completed.

[0009] The present invention relates to a hair conditioning composition having (A) and (B), and characterized by having a pH of 6.0 or higher. (A) Aliphatic amines represented by the following general formula (I) (B) Oils that are liquid at 20°C [ka] (At least one of R5, R6, and R7 has an alkyl group with 12 to 30 carbon atoms and may include an amide group, a hydroxyl group, or an alkylene glycol group, while the remainder is independently selected from alkyl groups or alkylene glycol groups with 1 to 3 carbon atoms.)

[0010] In the present invention, it is preferable that the pH is 6.5 or higher, and that (B) is an ester oil. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a hair conditioning composition that combines a pleasant feeling when rinsing, smoothness when rinsing, smoothness when blow-drying, and manageability after drying. [Modes for carrying out the invention]

[0012] The present invention will be described in detail below.

[0013] In this specification, "lingering feeling" refers to a state in which the surface of the hair is uniform when the hair is pinched and moved between the fingers, and a thickness derived from the product can be felt on the hair surface. Furthermore, "smoothness" refers to a state in which the hair moves smoothly without snagging when the hair is pinched and moved between the fingers, and the surface of the hair is uniformly coated.

[0014] <Hair Conditioning Composition> The hair conditioning composition of the present invention can be used in hair rinses, hair conditioners, hair treatments, hair packs, hair creams, leave-on treatments, and the like.

[0015] Furthermore, the hair 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 an appropriate dosage form such as a cream or emulsion. It can also be in the form of an aerosol or non-aerosol, and in the case of a non-aerosol, it can take various forms such as a squeeze-former type or a pump-former type.

[0016] The hair conditioning composition of the present invention is characterized by having A) and (B), and having a pH of 6.0 or higher. (A) Aliphatic amines represented by the following general formula (I) (B) Oils that are liquid at 20°C [ka] (At least one of R5, R6, and R7 has an alkyl group with 12 to 30 carbon atoms and may include an amide group, a hydroxyl group, or an alkylene glycol group, while the remainder is independently selected from alkyl groups or alkylene glycol groups with 1 to 3 carbon atoms.)

[0017] The following describes in detail each component of the conditioning composition of the present invention.

[0018] <(A) component> Component (A) used in the present invention is a tertiary aliphatic amine. Tertiary aliphatic amines are generally used together with an acid for the purpose of antistatic use. By covering the hair surface with a lipophilic group, the hair becomes smooth, and as a result, the generation of static electricity can be suppressed. However, in the present invention, by using it in a region not affected by the acid, it can contribute to the residual feeling on the hair during rinsing.

[0019] Component (A) is represented by the general formula (1).

Chemical formula

[0020] The tertiary amine used as component (A) is not particularly limited, and specific examples include stearamidopropyldimethylamine, behenamidopropyldimethylamine, PPG-1 / PEG-1 stearamine, etc. Commercially available products may be used as component (A).

[0021] Component (A) is not particularly limited as long as the effects of the present invention can be exhibited, but the blending amount is preferably 0.1% by mass or more in total of component (A) with respect to the hair conditioning composition, and the smoothness during rinsing becomes even better.

[0022] <Component (B)> Component (B) used in the present invention is an oil agent that is liquid at 20°C. Here, "being liquid at 20°C" means having a melting point at a temperature of 20°C or lower and showing a state of having fluidity at 20°C. As long as it is an oil agent that is liquid at 20°C, the smoothness during drying and the cohesion after drying are good. Component (B) is generally used as an oily base for imparting luster and gloss to the hair. In the present invention, it mainly contributes to the smoothness during drying and the cohesion after drying.

[0023] (B) component, the oily agent which is liquid at 20°C and used as such, is not limited to these, but specifically includes diethylhexyl succinate, diethyl sebacate, isopropyl myristate, isopropyl hexanoate, cetyl isooctanoate, isodecyl neopentanoate, neopentyl glycol dicaprate, octyldodecyl myristate, octyldodecanol, isostearyl isostearate, mineral oil, etc., and one or a combination of two or more of these can be used. Preferably, it is an ester oil selected from octyldodecyl myristate and diethyl sebacate. For the (B) component, commercially available products may be used.

[0024] (B) component is not particularly limited as long as the effects of the present invention can be exhibited, but the blending amount is preferably such that the total amount of the (B) component is 0.1% by mass with respect to the hair conditioning composition. When the smoothness during drying is further improved, and further when the oily agent is an ester oil, the cohesion after drying is further improved.

[0025] <Adjustment of pH> The pH of the hair conditioning composition of the present invention is 6.0 or more, and preferably 6.5 or more, which is important. General hair conditioning compositions have a pH of less than 6.0 due to ensuring anti-corrosion performance and the influence of cationic surfactants. However, in the present invention, it has been found that by setting the pH to 6.0 or more, it contributes to improving the smoothness of hair during rinsing. This is presumably because by making the pH of the hair conditioning composition approximately the same as the pH of water during rinsing, the pH change on the hair during rinsing can be minimized.

[0026] The method for adjusting the pH of the hair conditioning composition of the present invention to 6.0 or more is to appropriately control the amount of amine in the (A) component and the amount of acid.

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

[0028] Such ingredients include, for example, higher alcohols such as stearyl alcohol and behenyl alcohol; quaternary ammonium salts such as steartrimonium chloride and behentrimonium chloride; high molecular weight compounds such as cationized cellulose and poly(diallyldimethylammonium chloride); anti-dandruff ingredients such as zinc pyrithione and benzalkonium chloride; lower alcohols such as ethanol, methanol, propyl alcohol, and isopropyl alcohol; oils that are not liquid at 20°C such as paraffin wax and petrolatum; silicone compounds such as dimethicone and amodimethicone; polyols such as DPG and propylene glycol; and other UV absorbers, preservatives, sugars, fragrances, colorants, metal ion sequestering agents, antioxidants, various chemicals, and water. [Examples]

[0029] Next, the hair conditioning composition 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 the feeling of residue after rinsing 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 1-3, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). Ten trained evaluators evaluated the lingering sensation felt during rinsing with 40°C water for 10 seconds, according to the evaluation criteria below. The score before treatment was set to 5 points, and the average of the scores of the 10 evaluators was calculated based on the difference in scores after three treatments. The lingering sensation during rinsing was determined using this average value based on the scoring criteria below.

[0031] <Evaluation criteria for residue after rinsing> 5 points: When pinched and pulled, the surface felt uniform, and the product felt thick on the hair surface. 4 points: When pinched and pulled, the surface was uniform, and the product could be felt on the surface of the hair. 3 points: When pinched and pulled, the surface was not uniform, but the product could be felt on the surface of the hair. Points 2: When pinched and pulled, the surface was not uniform, and I didn't feel much of the product on the hair surface. 1 point: When pinched and pulled, the surface was not uniform, and I couldn't feel any product on the surface of the hair at all.

[0032] <Score criteria for residue after rinsing> ◎: 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

[0033] (2) Method for evaluating smoothness during rinsing 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 1-3, was applied to a 10g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30cm in length). Ten trained evaluators evaluated the perceived smoothness during 10 seconds of rinsing with 40°C water, according to the evaluation criteria below. The score before treatment was set to 5 points, and the average of the scores of the 10 evaluators was calculated based on the difference in scores after three treatments. Using this average value, the smoothness during rinsing was determined based on the scoring criteria below.

[0034] <Evaluation criteria for smoothness during rinsing> 5 points: When I pinched and pulled it, there was absolutely no snagging, and the surface of the hair felt evenly coated. 4 points: When pinched and pulled, there was no snagging, and the hair surface felt like it was coated fairly evenly. 3 points: When pinched and pulled, there was not much snagging, and the surface of the hair felt like it was coated fairly evenly. Points 2: There wasn't much resistance when pinching and pulling, but the hair surface didn't feel like it was coated. 1 point: When I pinched and pulled it, I felt some resistance, but it didn't feel like the surface of the hair was coated.

[0035] <Smoothness during rinsing: scoring criteria> ◎: 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 smoothness when using a hair dryer Three g of the conditioning compositions according to the examples and comparative examples of the present invention, prepared by conventional methods using the formulations shown in Tables 1-3, were applied to a 10 g hair bundle (Beaulux Co., Ltd., same Asian human hair, 30 cm in length). After rinsing with 40°C water for 10 seconds, the wet hair bundle was combed 20 times, and after towel-drying for 5 seconds, the smoothness of the hair was observed and evaluated by 10 trained evaluators according to the evaluation criteria below while drying with a hairdryer. The average of the sum of the scores from the 10 evaluators was calculated. Using this average value, the smoothness during drying was determined based on the scoring criteria below.

[0037] <Evaluation Criteria for Smoothness During Hair Drying> 5 points: When I pinched and pulled it, there was absolutely no snagging, and the surface of the hair felt evenly coated. 4 points: When pinched and pulled, there was no snagging, and the hair surface felt like it was coated fairly evenly. 3 points: When pinched and pulled, there was not much snagging, and the surface of the hair felt like it was coated fairly evenly. Points 2: There wasn't much resistance when pinching and pulling, but the hair surface didn't feel like it was coated. 1 point: When I pinched and pulled it, I felt some resistance, but it didn't feel like the surface of the hair was coated.

[0038] <Smoothness during blow-drying: scoring criteria> ◎: 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 cohesiveness after drying 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 1-3, 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. Ten trained evaluators evaluated the manageability of the hair after drying according to the evaluation criteria below, and the average of the sum of the scores from the ten evaluators was calculated. The manageability after drying was determined based on the scoring criteria below using this average value.

[0040] <Evaluation Criteria for Hair Manageability After Drying> 5 points: It didn't spread out much visually, and felt moist when I ran my fingers through it. 4 points: It didn't spread out much visually, and felt slightly moist when I ran my fingers through it. 3 points: It didn't spread out much visually, and it felt slightly moist when I ran my fingers through it. 2 points: It didn't spread out much visually, but it didn't feel moisturizing when I ran my fingers through it. 1 point: It spread out visually, but it didn't feel moisturizing when I ran my fingers through it.

[0041] <Scoring criteria for manageability after drying> ◎: 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] (Examples 1-17) (Comparative Examples 1-5) The residue after rinsing, smoothness after rinsing, smoothness during blow-drying, and manageability after drying were evaluated for the formulations listed in Tables 1-3. Commercially available products (hair conditioners) containing ingredients (A) and (B) were used as comparative examples 4 and 5.

[0043] [Table 1]

[0044] [Table 2]

[0045] [Table 3]

[0046] Tables 1-3 show that Examples 1-17, which used the components of the present invention, all demonstrated excellent performance. On the other hand, Comparative Examples 1-5 were inferior in one or more aspects, such as the feeling of residue when rinsing the composition, smoothness when rinsing, smoothness when using a hairdryer, or manageability after drying, and thus failed to achieve the objective of the present invention.

[0047] The following are other formulation examples of the conditioning composition of the present invention. For the example formulations, we evaluated the following aspects: residue after rinsing, smoothness after rinsing, smoothness during blow-drying, and manageability after drying.

[0048] Formula Example 1: Hair Pack (pH 7.59) Ingredients (mass %) (1) Stearyl alcohol 9.0 (2) Bis-diglyceryl polyacyladipate-2 1.0 (3) Paraffin 1.0 (4) Behenyl alcohol 1.0 (5) Behenyl PG Trimonium Chloride 1.0 (6) Cetrimonium chloride 1.0 (7) Behentrimonium chloride 1.0 (8) Vaseline 1.0 (9) Hydroxyethylcellulose 0.4 (10) DPG 1.0 (11) Behenamidopropyldimethylamine 5.0 (12) BG 0.5 (13) Laureth-23 0.1 (14)(C12-14) Palace-5 0.1 (15) PEG-55 stearate 0.1 (16) Laureth-4 0.1 (17) Rice bran extract 0.1 (18) Dimethicone 2.0 (19) Glycerin 1.0 (20) Amodimethicone 1.0 (21) Camellia seed oil 0.1 (22) Rice germ oil 0.1 (23) Diethyl sebacate 1.0 (24) Octyldodecyl myristate 1.0 (25) Methylparaben 0.2 (26) Phenoxyethanol 0.1 (27)Fragrance 0.2 (28) Purified water remainder

[0049] Formula Example 2: Hair Treatment (7.61) Amount of Ingredient (mass %) (1) Cetearyl alcohol 6.0 (2) Bis-diglyceryl polyacyladipate-2 1.0 (3) Paraffin 1.0 (4) Behenyl alcohol 1.0 (5) Behenyl PG-trimonium chloride 0.5 (6) Hydrogenated polyisobutene 0.5 (7) Behentrimonium chloride 0.5 (8) Vaseline 1.0 (9) Hydroxyethylcellulose 0.4 (10) Cherry leaf extract 0.1 (11) Steartrimonium chloride 0.5 (12) Behenamidopropyldimethylamine 0.2 (13)(C12-14) Palace-7 0.1 (14)(C12-14) Palace-5 0.1 (15) PPG-1 / PEG-1 stearamine 0.8 (16) Laureth-4 0.1 (17) Rice bran extract 0.1 (18) Dimethicone 1.0 (19) Sorbitol 1.0 (20) Camellia seed oil 0.1 (21) Rice germ oil 0.1 (22) Dimethicone 1.0 (23) DPG 0.1 (24) Saccharomyces / Rice Bran Ferment Extract 0.1 (25) Isopropyl myristate 1.0 (26) Methylparaben 0.2 (27) Phenoxyethanol 0.1 (28)Fragrance 0.2 (29) Purified water remainder

[0050] Formula Example 3 Hair Conditioner (7.73) Amount of Ingredients (mass%) (1) Cetearyl Alcohol 4.0 (2) Bis-diglyceryl polyacyladipate-2 1.0 (3) Paraffin 1.0 (4) Stearyl alcohol 2.0 (5) Behenyl PG Trimonium Chloride 1.0 (6) Cetrimonium chloride 0.5 (7) Behentrimonium chloride 1.0 (8) Diethyl sebacate 0.5 (9) Hydroxyethylcellulose 0.1 (10) Sake lees extract 0.1 (11) Steartrimonium chloride 0.5 (12) Mineral oil 0.3 (13)(C12-14) Palace-7 0.1 (14)(C12-14) Palace-5 0.1 (15) Laureth-23 0.1 (16) Behenamidopropyldimethylamine 1.0 (17) Rice bran extract 0.1 (18) Dimethicone 2.0 (19) Sorbitol 1.0 (20) Camellia seed oil 0.1 (21) Rice germ oil 0.1 (22) Amodimethicone 1.0 (23) DPG 1.0 (24) Saccharomyces / Rice Bran Ferment Extract 0.1 (25) Octyldodecyl myristate 0.2 (26) Methylparaben 0.2 (27) Phenoxyethanol 0.1 (28)Fragrance 0.2 (29) Purified water remainder

[0051] We also evaluated the composition of these formulation examples in terms of residue after rinsing, smoothness after rinsing, smoothness during blow-drying, and manageability after drying, and all of them Its characteristics were also excellent, and good results were obtained.

Claims

[Claim 1] A hair conditioning composition characterized by having (A) and (B), and having a pH of 6.5 or higher. (A) Aliphatic amines represented by the following general formula (I) (B) An oily preparation that is liquid at 20°C, comprising at least one ester oil selected from the group consisting of octyldodecyl myristate and diethyl sebacate. 【Chemistry 1】 (R ５ R ６ R ７ At least one of the groups has an alkyl group with 12 to 30 carbon atoms and may contain an amide group, a hydroxyl group, or an alkylene glycol group, while the remainder is independently selected from alkyl groups or alkylene glycol groups with 1 to 3 carbon atoms.

Images