Color-recovering agent
AssigneeKao Corporation
InventorsIsao Yamada, Norihiro Inoue, Yoichi Tsukiyama
Life of this patent
Estimating the term…
Abstract
This invention provides a composition and a means being capable of easily recovering the color of faded clothes in home. The composition is a color recovering agent which comprises (a) a water-insoluble polymer with a refractive index of 1.20 to 1.45 at 25° C., (b) a compound or polymer having a molecular weight of 300 to 1,000 having specific groups such as amide group, (c) water and (d) a non-aqueous solvent, wherein the ratio of (a)/(b) by weight is in the range of 3/1 to 100/1.
Claims16
A method of color-recovering a colored cloth by soaking said colored cloth with a composition which comprises (a) a water-insoluble an amino-modified silicone compound having an amino equivalent of 1500 to 40,000 g/mol with a refractive index of 1.20 to 1.45 at 25° C., (b) a compound with a molecular weight of 300 to 1000, having, in the molecule thereof, at least one of a quaternary ammonium group and a tertiary amino group and at least one of a C10-36 alkyl group and a C10-36 alkenyl group and (c) water, wherein the ratio by weight of (a)/(b) is in the range of 3/1 to 100/1 for a time sufficient to recover said color.
A method of color-recovering a colored cloth by contacting said colored cloth with a color-recovering composition in washing or rinsing water when the colored cloth is being washed or rinsed, respectively, said composition comprising (a) an amino-modified silicone compound having an amino equivalent of 1500 to 40,000 g/mol with a refractive index of 1.20 to 1.45 at 25° C., (b) a compound with a molecular weight of 300 to 1000, having, in the molecule thereof, at least one of a quaternary ammonium group and a tertiary amino group and at least one of a C10-36 alkyl group and a C10-36 alkenyl group, and (c) water, wherein the ratio by weight of (a)/(b) is in the range of 3/1 to 100/1, and said composition being added to said washing or rinsing water in an amount effective to recover said color.
Dependencies are inferred from the claim text.