Abstract: The present invention is a method for estimating a physical property of an aqueous sample containing a surfactant and water, comprising: adding an oil component and a phase-changing probe to the aqueous sample, and estimating the physical property of the aqueous sample from an amount of the phase-changing probe when a phase structure of the mixture changes.

Abstract: A detergent composition, containing the following component (a), the following component (c1), and water: component (a): a reducing agent with an oxidation-reduction potential of +71 mV or less, and component (c1): a low-foaming anionic surfactant. The composition has a content of the component (a) of 3 mass % or more, a content of water of 20 mass % or more, and a pH of 6 or more and 11 or less at 25° C.

Abstract: The present invention is a liquid detergent composition for tableware and/or kitchen hard articles containing: (a) a nonionic surfactant with an HLB of 10.5 or less; (b) a surfactant selected from amine oxide-type surfactants, amphoteric surfactants, and nonionic surfactants with an HLB of 11 or more; and (c) an organic solvent with a log Pow of 0 or more and 1.5 or less, wherein a proportion of component (a) in all surfactants is 30 mass % or more and 85 mass % or less, a mass ratio of the content of (c) to the content of (a), (c)/(a), is 1 or more and 10 or less, and a viscosity at 20° C. is 20 mPa·s or less.

Abstract: The present invention is a liquid detergent composition for tableware and/or kitchen hard articles containing: (a) a nonionic surfactant with an HLB of 10.5 or less (provided that (b) is excluded); (b) a glycoside having a hydrocarbon group with 8 or more and 18 or less carbons and a glycoside group with an average degree of condensation of 0.5 or more and 3 or less; and (c) an organic solvent with a logPow of 0 or more and 1.5 or less [hereinafter, referred to as component (c)], wherein the content of (a) in all surfactants is 30 mass % or more and 95 mass % or less, a mass ratio of component (c) to the content of (a), (c)/(a), is 2 or more and 8 or less, and a viscosity at 20° C. is 20 mPa·s or less.

Abstract: The present invention is a method for estimating a physical property of an aqueous sample containing a surfactant and water, comprising: adding an oil component and a phase-changing probe to the aqueous sample, and estimating the physical property of the aqueous sample from an amount of the phase-changing probe when a phase structure of the mixture changes.

Abstract: The present invention is a liquid detergent composition for tableware and/or kitchen hard articles containing: (a) a nonionic surfactant with an HLB of 10.5 or less; (b) a surfactant selected from amine oxide-type surfactants, amphoteric surfactants, and nonionic surfactants with an HLB of 11 or more; and (c) an organic solvent with a logPow of 0 or more and 1.5 or less, wherein a proportion of component (a) in all surfactants is 30 mass % or more and 85 mass % or less, a mass ratio of the content of (c) to the content of (a), (c)/(a), is 1 or more and 10 or less, and a viscosity at 20° C. is 20 mPa·s or less.

Abstract: The present invention is a liquid detergent composition for tableware and/or kitchen hard articles containing: (a) a nonionic surfactant with an HLB of 10.5 or less (provided that (b) is excluded); (b) a glycoside having a hydrocarbon group with 8 or more and 18 or less carbons and a glycoside group with an average degree of condensation of 0.5 or more and 3 or less; and (c) an organic solvent with a logPow of 0 or more and 1.5 or less [hereinafter, referred to as component (c)], wherein the content of (a) in all surfactants is 30 mass % or more and 95 mass % or less, a mass ratio of component (c) to the content of (a), (c)/(a), is 2 or more and 8 or less, and a viscosity at 20° C. is 20 mPa·s or less.

Abstract: A hair cosmetic containing Components (A) and (B): (A) a cationic polymer having a charge density of 5.0 to 7.0 meq/g; and (B) an anionic polymer comprising 80% by mass or more and 100% by mass or less of a constitutional unit represented by Formula (1) and having a weight-average molecular weight of 4,000 or more and 80,000 or less, where R1 represents a hydrogen atom or a carboxy group; and R2 represents a hydrogen atom or a methyl group.

Abstract: A hair cosmetic comprising the following ingredients (A) and (B): (A) a cationic polymer having a charge density of 5.0 to 7.0 meq/g and (B) an anionic polysaccharide derivative wherein a part of the H atoms of the OH group of a polysaccharide compound having the constituent unit described below are substituted with a —(CH2)mCOO? group (m is an integer of 1 to 5) at an average substitution degree of 0.5 to 2.0 per constituent unit, and wherein optionally a part of the H atoms of the remaining —OH groups are substituted with C1-40 alkyl groups and/or alkylene groups, wherein the viscosity of the ingredient (B) in a 2 mass % aqueous solution (25° C.) is 0.5 to 800 mPa·s wherein R? represents a C2-4 alkylene group optionally substituted with an —OH group, and n represents a number by which the average number of added moles of R?O per constituent unit is 0 to 10.

Abstract: A hair cosmetic containing Components (A) and (B): (A) a cationic polymer having a charge density of 5.0 to 7.0 meq/g; and (B) an anionic polymer comprising 80% by mass or more and 100% by mass or less of a constitutional unit represented by Formula (1) and having a weight-average molecular weight of 4,000 or more and 80,000 or less, where R1 represents a hydrogen atom or a carboxy group; and R2 represents a hydrogen atom or a methyl group.

Abstract: A hair cosmetic comprising the following ingredients (A) and (B): (A) a cationic polymer having a charge density of 5.0 to 7.0 meq/g and (B) an anionic polysaccharide derivative wherein a part of the H atoms of the OH group of a polysaccharide compound having the constituent unit described below are substituted with a —(CH2)mCOO? group (m is an integer of 1 to 5) at an average substitution degree of 0.5 to 2.0 per constituent unit, and wherein optionally a part of the H atoms of the remaining —OH groups are substituted with C1-40 alkyl groups and/or alkylene groups, wherein the viscosity of the ingredient (B) in a 2 mass % aqueous solution (25° C.) is 0.5 to 800 mPa·s wherein R? represents a C2-4 alkylene group optionally substituted with an —OH group, and n represents a number by which the average number of added moles of R?O per constituent unit is 0 to 10.