Hair conditioning composition and low energy method of producing the same
A hair conditioning composition containing very little water from which a hair conditioner can be easily produced by diluting with water, and a low energy production method thereof. A hair conditioning composition including (a) 10 to 90% by mass of specifically structured higher alcohols and/or derivatives thereof, (b) 5 to 35% by mass of cationic surfactant, and (c) a polyhydric alcohol and/or polyethylene glycol having a melting point of 70° C. or less, wherein the melting point of a gel which is formed from (a) and (b) in the composition is 70° C. or less, the water content is 10% by mass or less, and the molar ratio of (a) to (b) is 2.5 or more to less than 6.0. Also, a low energy method of producing a hair conditioner by melting the hair conditioning composition under heating at the temperature of the melting point of gel or more to 70° C. or less, and diluting it with water in an amount of 3 to 15 times by mass.
1. A hair conditioning composition comprising:
(a) 20 to 50% by mass of one or more components selected from higher alcohols having 16 carbon atoms or more, higher fatty acids having 16 carbon atoms or more, and/or derivatives thereof represented by following formulas (I) and (II):
R 1 —O—(—(CH 2 ) y —O—) x —H (I)
wherein R 1 is a straight chain or branched fatty acid residue having 10 to 24 carbon atoms, and each of x and y is an integer of 1 to 3,
R 2 —COO—CH 2 —CH(OH)—CH 2 -Q (II)
wherein R 2 is a straight chain or branched fatty acid residue having 9 to 23 carbon atoms, and Q is H or OH;
(b) 5 to 35% by mass of a cationic surfactant; and
(c) one or more selected from propylene glycol, dipropylene glycol, 1,3-butylene glycol, isopentyldiol, glycerin, and/or polyethylene glycol with a molecular weight of 5,000 or less,
wherein (a) and (b) form an α gel in the composition,
wherein endothermic peak of the α gel is 70° C. or less as measured by a differential scanning calorimeter (DSC),
wherein water content is 10% by mass or less,
wherein molar ratio of (a) to (b) is 2.5 or more to less than 6.0, and
wherein the hair conditioning composition is a solid or paste form when a melted mixture of components (a), (b), and (c) is cooled to 20 to 40° C.
2. The hair conditioning composition according to claim 1 , being a hair conditioning precursor composition.
3. A low energy method of producing a hair conditioning composition, comprising:
the hair conditioning composition, as a precursor composition, according to claim 1 under heating at temperature of melting point of gel or more to 70° C. or less,
diluting the hair conditioning composition according to claim 1 with water in an amount of 3 to 15 times by mass.
4. A method of using a hair conditioning composition, comprising:
diluting the hair conditioning composition according to claim 1 with water in an amount of 3 to 15 times by mass to prepare a hair conditioner, and
using the hair conditioner.
5. The hair conditioning composition according to claim 1 , wherein the endothermic peak of the α gel is 43° C. or more and 70° C. or less.
6. A hair conditioner produced by diluting with water by 10 times a conditioning composition that comprises:
(a) 20 to 50% by mass of one or more components selected from higher alcohols having 16 carbon atoms or more, higher fatty acids having 16 carbon atoms or more, and/or derivatives thereof represented by following formulas (I) and (II):
R 1 —O—(—(CH 2 ) y —O—) x -H (I)
wherein R 1 is a straight chain or branched fatty acid residue having 10 to 24 carbon atoms, and each of x and y is an integer of 1 to 3,
R 2 —COO—CH 2 —CH(OH)—CH 2 -Q (II)
wherein R 2 is a straight chain or branched fatty acid residue having 9 to 23 carbon atoms, and Q is H or OH;
(b) 5 to 35% by mass of a cationic surfactant; and
(c) one or more selected from propylene glycol, dipropylene glycol, 1,3-butylene glycol, isopentyldiol, glycerin, and/or polyethylene glycol with a molecular weight of 5,000 or less,
wherein (a) and (b) form an α gel in the composition, wherein endothermic peak of the a gel is 70° C. or less as measured by a differential scanning calorimeter (DSC),
wherein water content is 10% by mass or less, wherein molar ratio of (a) to (b) is 2.5 or more to less than 6.0, and wherein the hair conditioning composition is a solid or paste form when a melted mixture of the-components (a), (b), and (c) is cooled to 20 to 40° C.;
and the hair conditioner is in a gel state.
7. A hair conditioner produced by diluting with water by 10 times a conditioning composition that comprises:
(a) 20 to 50% by mass of one or more components selected from higher alcohols having 16 carbon atoms or more, higher fatty acids having 16 carbon atoms or more, and/or derivatives thereof represented by following formulas (I) and (II):
R 1 —O—(—(CH 2 ) y —O—) x -H (I)
wherein R 1 is a straight chain or branched fatty acid residue having 10 to 24 carbon atoms, and each of x and y is an integer of 1 to 3,
R 2 —COO—CH 2 —CH(OH)—CH 2 -Q (II)
wherein R 2 is a straight chain or branched fatty acid residue having 9 to 23 carbon atoms, and Q is H or OH;
(b) 5 to 35% by mass of a cationic surfactant; and
(c) one or more selected from propylene glycol, dipropylene glycol, 1,3-butylene glycol, isopentyldiol, glycerin, and/or polyethylene glycol with a molecular weight of 5,000 or less,
wherein (a) and (b) form an α gel in the composition, wherein endothermic peak of the a gel is 70° C. or less as measured by a differential scanning calorimeter (DSC),
wherein water content is 10% by mass or less, wherein molar ratio of (a) to (b) is 2.5 or more to less than 6.0, and wherein the hair conditioning composition is a solid or paste form when a melted mixture of the-components (a), (b), and (c) is cooled to 20 to 40° C.;
and the hair conditioner is in an α gel state.
8. The hair conditioning composition according to claim 1 , component (c) is disposed in an interlayer spacing of lamellar structures of the α gel formed by components (a) and (b).