Detergent compositions which provide dye transfer inhibition benefits
First Claim
1. A laundry detergent composition that provides especially effective inhibition of dye transfer between fabrics being laundered in aqueous washing solutions formed from such a composition, which composition comprises:
- (a) from about 1% to about 80% of a detersive surfactant;
(b) from about 0.1% to about 80% of detergent builder component;
(c) from about 0.01% to 10% by weight of a polymeric dye transfer inhibiting agent selected from the group consisting of polyamine N-oxide polymers, copolymers and N-vinylpyrrolidone and N-vinylimidazole and combinations of said polymers and copolymers; and
(d) from about 0.005% to 5% by weight of a hydrophilic optical brightener having the formula;
##STR7## wherein R1 is selected from the group consisting of anilino, N-2-bis-hydroxyethyl and NH-2-hydroxyethyl;
R2 is selected from the group consisting of N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphilino, chloro and amino; and
M is a salt-forming cation.
1 Assignment
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Accused Products
Abstract
Disclosed are detergent compositions and methods which are suitable for washing colored fabrics in aqueous washing solution with little or no transfer of dye between fabrics. The compositions utilized comprise detersive surfactant, detergent builder, certain selected polymeric dye transfer inhibiting agents and certain selected hydrophilic optical brighteners. The polymeric dye transfer inhibiting agents are polyamine N-oxides such as poly(4-vinylpyridine-N-oxide), i.e., PVNO and/or copolymers of N-vinyipyrrolidone and N-vinylimidazole, i.e., PVPVI. The optical brighteners are selected from certain stilbenedisulfonic acid salts.
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Citations
20 Claims
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1. A laundry detergent composition that provides especially effective inhibition of dye transfer between fabrics being laundered in aqueous washing solutions formed from such a composition, which composition comprises:
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(a) from about 1% to about 80% of a detersive surfactant; (b) from about 0.1% to about 80% of detergent builder component; (c) from about 0.01% to 10% by weight of a polymeric dye transfer inhibiting agent selected from the group consisting of polyamine N-oxide polymers, copolymers and N-vinylpyrrolidone and N-vinylimidazole and combinations of said polymers and copolymers; and (d) from about 0.005% to 5% by weight of a hydrophilic optical brightener having the formula;
##STR7## wherein R1 is selected from the group consisting of anilino, N-2-bis-hydroxyethyl and NH-2-hydroxyethyl;
R2 is selected from the group consisting of N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphilino, chloro and amino; and
M is a salt-forming cation. - View Dependent Claims (2, 3, 4, 5, 15)
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6. A liquid laundry detergent composition that provides especially effective inhibition of dye transfer between fabrics and being laundered in aqueous washing solutions formed from such a composition, which composition comprises:
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(a) from about 5% to 50% by weight of a detersive surfactant selected from the group consisting of i) sodium, potassium and ethanolamine alkylsulfates wherein the alkyl group contains from 10 to 22 carbon atoms; ii) sodium, potassium and ethanolamine alkylpolyethoxylate sulfates wherein the alkyl group contains from 10 to 22 carbon atoms and the polyethoxylate chain contains from 1 to 15 ethylene oxide moieties; iii) polyhydroxy fatty acid amides of the formula ##STR8## wherein R is a C9-17 alkyl or alkenyl and Z is glycityl derived from a reduced sugar or alkoxylated derivatives thereof; iv) alcohol ethoxylates of the formula R1 (OC2 H4)n OH where R1 is a C10 -C16 alkyl group or a C8 -C12 alkyl phenyl group and n is from about 3 to 80; and (b) from about 1% to 10% by weight of a detergent builder component selected from the group consisting of carboxylate and polycarboxylate builders; (c) from about 0.05% to 0.5% by weight of a polymeric dye transfer inhibiting agent selected from the group consisting of i) polyamine N-oxides having an anionic to amino N-oxide molar ratio of from about 10;
1 to 1;
1,000,000 and having an average molecular weight of from about 500 to 1,000,000; andii) polymers of N-vinylpyrrolidone and N-vinylimidazole having a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of from about 1;
1 to 0.2;
1 and having an average molecular weight of from about 5,000 to 1,000,000; and(d) from about 0.01% to 1% of a hydrophilic optical brightener selected from the group consisting of i) 4,4'"'"'-bis[(4-anilino-6-(N-2-bis-hydroxyethyl)-s-triazine-2yl)amino]-2,2'"'"'-stilbenedisulfonic acid disodium salt; ii) 4,4'"'"'- bis[(4-anilino-6-(N-2 -hydroxyethyl-N-methylamino)-s-triazine-2-yl)amino]-2,2'"'"'-stilbenedisulfonic acid disodium salt; and iii) 4,4'"'"'-bis[(4-anilino-6-morphilino-s-triazine-2-yl)amino]-2,2'"'"'-stilbenedisulfonic acid, sodium salt. - View Dependent Claims (7, 8, 9, 17)
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10. A granular laundry detergent composition that provides especially effective inhibition of dye transfer between fabrics being laundered in aqueous washing solutions formed from such a composition, which composition comprises:
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(a) from about 5% to 50% by weight of a detersive surfactant selected from the group consisting of i) sodium and potassium alkylpolyethoxylate sulfates wherein the alkyl group contains from 10 to 22 carbon atoms and the polyethoxylate chain contains from 1 to 15 ethylene oxide moieties; ii) sodium and potassium C9 to C15 alkyl benzene sulfonates; iii) sodium and potassium C8 to C18 alkyl sulfates; iv) polyhydroxy fatty acid amides of the formula ##STR9## wherein R is a C9-17 alkyl or alkenyl and Z is a glycityl derived from a reduced sugar or alkoxylated derivatives thereof; and v) combinations of these surfactants; (b) from about 1% to 50% by weight of a detergent builder selected from the group consisting of sodium carbonate, sodium silicate, crystalline layered silicates, aluminosilicates, oxydisuccinates and citrates; (c) from about 0.05% to 0.5% by weight of a polymeric dye transfer inhibiting agent selected from the group consisting of i) polyamine N-oxides having an anionic to amine N-oxide molar ratio of from about 10;
1 to 1;
1,000,000 and having an average molecular weight of from about 500 to 1,000,000; andii) copolymers of N-vinylpyrrolidone and N-vinylimidazole having a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of from about 1;
1 to 0.2;
1 and having an average molecular weight of from about 5,000 to 1,000,000; and(d) from about 0.01% to 1% of a hydrophilic optical brightener selected from the group consisting of i) 4,4'"'"'-bis[(4-anilino-6-(N-2-bis-hydroxyethyl)-s-trizine-2yl)amino]-2,2'"'"'-stilbenedisulfonic acid disodium salt; - View Dependent Claims (12, 13, 14, 16, 18, 19, 20)
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11. 4'"'"'-bis[(4-anilino-6-(N-2-hydroxyethyl-N-methylamino)-s-trizine-2-yl)amino]-2,2'"'"'-stilbenedisulfonic acid disodium salt;
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iii) 4,4'"'"'-bis[(4-anilino-6-morphilino-s-trizine-2yl)amino]-2,2'"'"'-stilbenedisulfonic acid, sodium salt.
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Specification