Dye transfer inhibiting fabric softener compositions
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorsDaniel Joseph Fox, Nancy Pergament, Feng-Lung Hsu
Life of this patent
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Abstract
A concentrated aqueous fabric conditioning composition which both conditions and inhibits dye transfer is described. The composition includes a fabric conditioning active and a dye transfer inhibiting compound preferably polyvinyl pyrrolidone and a colorant. Methods of preparing and using the compositions are also described.
Claims18
A colored concentrated aqueous fabric conditioning composition comprising:
- a) from about 3% to about 35% by weight of a fabric conditioning agent;
- b) from about 0.0001% (1 ppm) to about 0.05% (500 ppm) by weight of a colorant selected from the group consisting of dyestuffs consisting of Acid Blue 80, FD&C Blue 1, Acid Yellow 17, Acid Yellow 23, FD&C Green 3, FD&C Red 4, Acid Red #52 and mixtures thereof;
- and
- c) from about 0.1% to about 10% of a dye transfer inhibiting compound.
A method of inhibiting dye transfer in fabrics comprising:
- a) preparing a colored concentrated aqueous fabric conditioning composition comprising:
- i) from about 3% to about 35% by weight of a fabric conditioning agent selected from the group consisting of a cationic softening active, a nonionic softening active and mixtures thereof,
- ii) from about 0.0001% (1 ppm) to about 0.05% by (500 ppm) by weight of a colorant selected from the group consisting of dyestuffs and pigments that exhibit a low degree of fabric staining when used in a rinse cycle product and,
- iii) from about 0.1% to about 10% of a dye transfer inhibiting compound, and
- iv) water;
- and
- b) introducing the composition into a rinsing cycle to condition and prevent dye transfer of fabrics.
A colored concentrated aqueous fabric conditioning composition comprising:
- a) from about 12 to about 20 wt. % of an ethoxylated methyl ammonium methylsulfate;
- b) from about 3 to about 8 wt. % of dihydrogenated tallow dimethylammonium chloride;
- c) from about 0.1 to about 10.0 wt. % of polyvinyl pyrrolidone;
- d) from about 0.05 to about 0.5 wt. % of lactic acid;
- e) from about 0.05 to about 0.4 wt. % calcium chloride;
- f) from about 0.02 to about 0.10 of glutaraldehyde;
- g) from about 0.2 to about 1.0 wt % of a perfume;
- h) from about 0.0001 to about 0.05 wt. % of at least one dye selected from the group consisting of Acid Blue 80, FD&C Blue 1, Acid Yellow 17, Acid Yellow 23, FD&C Green 3, FD&C Red 4, Acid Red #52 and mixtures thereof;
- and
- i) water in an amount to bring to the total composition to 100 wt. %.
A method of preparing a colored concentrated fabric conditioning composition comprising the steps of:
- a) introducing into a solution of water and colorant about 3% to about 35% by wt. of a molten fabric conditioning agent;
- b) subsequently adding into the solution of step a) a salt solution under controlled shear and in a series of distinct sequential addition;
- and
- c) subsequently adding from about 0.1% to about 10 wt. % of a dye transfer inhibiting compound as a solution in deionized water to form a homogeneous fabric conditioning composition having an average diameter size of about 2 to about 8 microns.
Dependencies are inferred from the claim text.