Dye stabilized detergent compositions

• US 4,526,701 A
• Filed: 08/31/1981
• Issued: 07/02/1985
• Est. Priority Date: 08/31/1981
• Status: Expired due to Term

• Current Assignee: Lever Brothers Company (Unilever PLC)
• Original Assignee: Lever Brothers Company (Unilever PLC)
• Inventors: Rubin, Fred K.
• Primary Examiner(s): Kittle, John E.
• Assistant Examiner(s): Van Le, Hoa
• Application Number:
  US06/297,588
• Time in Patent Office: 1,401 Days
• Field of Search: 252/DIG. 14, 252/173, 252/174.18, 252/174.19, 252/174.24, 252/401, 252/402, 252/403, 252/113, 8/525, 8/599, 8/904, 8/905, 8/906, 8/907, 8/908
• US Class Current: 510/398
• CPC Class Codes: C11D 3/40 Dyes ; Pigments

Abstract

This invention discloses a color stabilized aqueous detergent composition comprising in percent by weight of the composition (a) about 0.25% to about 95% surfactant; (b) about 0.0001% to about 0.5% dye; and (c) about 0.1% to about 5% polyhydroxy carboxylic acid or a salt thereof whereby color fading of said dye in said composition is substantially prevented.

Claims

1. A color-stabilized aqueous detergent composition comprising in percent by weight of the composition:

(a) about 0.25% to about 95% surfactant;

(b) about 0.0001% to about 0.5% of dye selected from the group consisting of mono-azo, diamino derivatives of triphenyl methane, Color Index 59040 and mixtures thereof; and

(c) about 0.4% to about 1.2% of a polyhydroxy carboxylic acid or a salt thereof wherein said acid is selected from the group consisting of ascorbic acid;

erythorbic acid;

dihydroxy maleic acid and mixtures thereof, whereby color fading of said dye in said composition is substantially prevented.

4. A composition according to claims 1, 2 or 3 wherein said surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants, soaps and mixtures thereof.

8. A composition according to claims 1, 2 or 3, said dye being one or more compounds with formulas corresponding to the formulas of Color Index Numbers selected from the group consisting of 15985, 19140, 42045, 42053, 42090, 59040 and mixtures thereof.

2. A color-stabilized automatic dishwashing rinse agent composition comprising in percent by weight of the composition:

(a) about 2.5% to about 95% surfactant;

(b) about 0.0001% to about 0.5% of dye selected from the group consisting of mono-azo, diamino derivatives of triphenyl methane, Color Index 59040 and mixtures thereof;

(c) about 0.4% to about 1.2% of a polyhydroxy carboxylic acid or a salt thereof wherein said acid is selected from the group consisting of ascorbic acid;

erythorbic acid;

dihydroxy maleic acid and mixtures thereof, whereby color fading of said dye in said composition is substantially prevented;

(d) 0% to about 15% other ingredients; and

(e) water to make 100%.

7. A composition according to claims 2 or 3 wherein said other ingredient includes one or more of the following:

perfumes, coupling agents, sequestrants, germicides, ammonia, preservatives, anti-tarnishing agents and mixtures thereof.

3. A color-stabilized liquid scouring composition comprising in percent by weight of the composition:

(a) about 0.25% to about 25% surfactant;

(b) about 0.0001% to about 0.5% of dye selected from the group consisting of mono-azo, diamino derivatives of triphenyl methane, Color Index 59040 and mixtures thereof;

(c) about 0.4% to about 1.2% of a polyhyroxy carboxylic acid or a salt thereof wherein said acid is selected from the group consisting of ascorbic acid;

erythorbic acid;

dihydroxy maleic acid and mixtures thereof, whereby color fading of said dye in said composition is substantially prevented.

5. A composition according to claim 3 wherein said abrasive is selected from the group consisting of calcite, dolomite, feldspar, silica flour, quartz, pumice, polishing clays, perlite, diatomite, alumina and mixtures thereof.

6. A composition according to claim 3 wherein said electrolyte is selected from the group consisting of alkali metal salts of phosphoric acid, sulfuric acid, carbonic acid, hydrohalogen acids, water soluble salts of carboxylic acids, alkali metal salts of ethylene diamine tetraacetic acid, alkaline earth salts of ethylene diamine tetraacetic acid, carboxymethyloxysuccinate, carboxymethyloxytartronate and mixtures thereof.