Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 300 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 0.5 mass % or more and 60 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.

Abstract: The present invention relates to a surfactant composition capable of making a dimethylsiloxane highly remain the solid surface, which is a surfactant composition containing an anionic surfactant (A), a cationic surfactant (B), and a dimethylpolysiloxane (C), wherein the following molar ratio RA is 0.10 to 0.90; and the following molar ratio Rb is 0.4 or more: RA: a molar ratio {(A)/[(A)+(B)]} of the amount of the anionic surfactant (A) to the total amount of the anionic surfactant (A) and the cationic surfactant (B) Rb: a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of the total amount of a branched-type anionic surfactant (a1) and a branched-type cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B).

Abstract: The present invention relates to a composition and process for reducing the drying time of solid substrate. A cationic surfactant in combination with low molecular weight dimethylpolysiloxanes provide for a faster water drainage.

Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 300 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 0.5 mass % or more and 60 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.

Abstract: The present invention relates to a composition and process for reducing the drying time of solid substrate. A group of cationic surfactants in combination with low molecular weight dimethylpolysiloxanes, amodimethicones, and fatty alcohols provide for a faster water drainage.

Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 100 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 1 mass % or more and 50 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.

Abstract: The present invention is a method for producing a vesicle composition having an aqueous phase as a continuous phase, the method including a step of dissolving an oil phase containing component (A) a branched fatty acid having a predetermined structure; component (B) a tertiary amine having a predetermined structure; and component (C) an organic acid having 1 to 10 carbon atoms at a temperature that is equal to or higher than a melting point of the oil phase, and a step of carrying out mixing while adding the aqueous phase to the oil phase which is dissolved.

Abstract: The present invention relates to a process for preparing a vesicle composition having a continuous phase constituted of an aqueous phase, including: melting an oil phase at a temperature of equal to or higher than a melting point of the oil phase, the oil phase containing following components (A) to (D): component (A) straight chain fatty acid having 14 to 24 carbon atoms; component (B) branched fatty acid having 14 to 24 carbon atoms and having a certain structure; component (C) tertiary amine compound; and component (D) organic acid having 1 to 8 carbon atom(s), mass ratio of the component (A) and the component (B) being: (A)/(B)=70/30 to 40/60, and adding the melted oil phase to the aqueous phase while mixing thereof.

Abstract: The present invention presents a hair cosmetic composition, which contains (A) equal to or higher than 0.01 mass % and equal to or lower than 20 mass % of a quaternary ammonium or its salt; (B) equal to or higher than 0.01 mass % and equal to or lower than to 20 mass % of ether-type tertiary amine or its salt; (C) equal to or higher than 0.005 mass % and equal to or lower than 6 mass % of branched aliphatic acid or its salt; and (D) equal to or higher than 0.05 mass % and equal to or lower than 10 mass % of aromatic sulfonate and water, in which the mass ratio of the component (C) and the component (D) being (C)/(D) is 0.05 to 1.

Abstract: The present invention is a method for producing a vesicle composition having an aqueous phase as a continuous phase, the method including a step of dissolving an oil phase containing component (A) a branched fatty acid having a predetermined structure; component (B) a tertiary amine having a predetermined structure; and component (C) an organic acid having 1 to 10 carbon atoms at a temperature that is equal to or higher than a melting point of the oil phase, and a step of carrying out mixing while adding the aqueous phase to the oil phase which is dissolved.

Abstract: The present invention provides a cleanser composition having a high foaming ability with a low stimulus to the skin. The cleanser composition of the present invention is weakly acidic and comprises (a) a phosphate monoester represented by the general formula (1) and (b) a phosphate diester represented by the general formula (2) wherein the ratio of the component (a) to the component (b), i.e. the (a)/(b) ratio, is from 65/35 to 90/10 by weight: wherein R1 represents an alkyl or alkenyl group containing 9 to 15 carbon atoms on average with a branching degree of 10% or more, X1 and X2 and X3 each represent a hydrogen atom or an alkali metal, and n is a number of 0 to 5.

Abstract: To provide a surfactant composition with an excellent foamability and thickening performance and further an excellent storage stability, it comprises the following components (a) and (b): (a) at least one anionic surfactant selected from (1) sulfonate-type anionic surfactants having amide group or ester group, (2) carboxylate-type anionic surfactants and (3) phosphate-type anionic surfactants and (b) a compound expressed by the formula (I): where R1CO— is an acyl group having 6 to 24 carbon atoms, R2 is an alkyl group having 1 to 3 carbon atoms and R3 is an alkylene group having 1 to 6 carbon atoms or an alkenylene group having 2 to 6 carbon atoms.

Abstract: To provide a surfactant composition with an excellent foamability and thickening performance and further an excellent storage stability, it comprises the following components (a) and (b):

Abstract: There is provided a surfactant composition for detergents, which has its high detergency and foamability within a broad pH region even in the presence of solids. It has its excellent foamability, thickening property, water solubility and stability. The composition contains a component (a) represented by the following formula (I) and at least one component (b) represented by the formula (II) and (III), in the total amount of 0.1 to 80% by weight, at the ratio of (a)/(b) by weight of from 99.9/0.1 to 70/30. In the formula (I), R1CO— is a saturated or unsaturated acyl group which has 6 to 24 carbon atoms and which may have hydroxy group; R2 is a linear or branched alkyl group having 1 to 3 carbon atoms; and R3 is a linear or branched alkylene or alkenylene group having 1 to 6 carbon atoms.

Abstract: There is provided a surfactant composition for detergents, which has its high detergency and foamability within a broad pH region even in the presence of solids. It has its excellent foamability, thickening property, water solubility and stability. The composition contains a component (a) represented by the following formula (I) and at least one component (b) represented by the formulae (II) and (III), in the total amount of 0.1 to 80% by weight, at the ratio of (a)/(b) by weight of from 99.9/0.1 to 70/30.