Bleach-containing laundry detergent comprising cotton-active soil release-capable cellulose derivative

• US 20060035805A1
• Filed: 08/10/2005
• Published: 02/16/2006
• Est. Priority Date: 02/10/2003
• Status: Abandoned Application

• Current Assignee: Henkel KGaA (Henkel AG & Co KGaA)
• Original Assignee: Henkel KGaA (Henkel AG & Co KGaA)
• Inventors: Penninger, Josef
• Application Number:
  US11/201,261
• Publication Number:
  US 20060035805A1
• Time in Patent Office: Days
• US Class Current: 510/473
• CPC Class Codes: C11D 11/00 Special methods for preparing compositions containing mixtures of detergents
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/0036 Soil deposition preventing compositions; Antiredeposition agents
• CPC Class Codes: C11D 3/225 etherified, e.g. CMC
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: D06M 15/09 Cellulose ethers
• CPC Class Codes: D06M 2200/00 Functionality of the treatment composition and/or properties imparted to the textile material

Abstract

Textile materials comprised at least partially of cotton are cleaned with a laundry detergent comprising bleach and an alkylated and/or hydroxyalkylated soil release-capable cellulose derivative having an average of from 0.5 to 2.5 alkyl groups and/or from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit. The textile materials are cleaned more effectively with a laundry detergent containing the alkylated and/or hydroxyalkylated soil release-capable cellulose derivative.

Claims

1. A method of cleaning a textile material comprising contacting a textile material comprised at least partially of cotton with a laundry detergent comprising bleach and an alkylated and/or hydroxyalkylated soil release-capable cellulose derivative having an average of from 0.5 to 2.5 alkyl groups and/or from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit.

2. The method of claim 1 wherein the textile material is pre-washed and/or after treated in the presence of the cellulose derivative prior to being soiled.

3. The method of claim 1 wherein the laundry detergent is further comprised of a polyester-active soil release-capable polymer comprised of a dicarboxylic acid and an optionally polymeric diol.

4. The method of claim 1 wherein the alkyl group of the alkylated cellulose derivative is a C₁ to C₁₀ group and the hydroxyalkyl group of the hydroxyalkylated cellulose derivative is a C₂ to C₁₀ hydroxyalkyl group.

5. The method of claim 4 wherein the hydroxyalkyl group of the hydroxyalkylated cellulose derivative is a C₂ to C₃ hydroxyalkyl group.

6. The method of claim 1 wherein the cellulose derivative is comprised of an average of from 1 to 2 alkyl groups and from 0.05 to 0.3 hydroxyalkyl groups per anhydroglycose monomer unit.

7. The method of claim 1 wherein the mean molar mass of the cellulose derivative is from 10,000 D to 150 000 D.

8. The method of claim 7 wherein the mean molar mass of the cellulose derivative is from 40,000 D to 120,000 D

9. The method of claim 8 wherein the mean molar mass of the cellulose derivative is from 80,000 D to 110,000 D

10. The method of claim 1 wherein the amount of bleach is from 5% by weight to 70% by weight.

11. The method of claim 11 wherein the laundry detergent is further comprised of from 2% by weight to 10% by weight of a bleach activator.

12. A method of cleaning a textile material comprising the steps of:

(1) contacting a textile material comprised at least partially of cotton with a laundry detergent comprising bleach and an alkylated and/or hydroxyalkylated soil release-capable cellulose derivative having an average of from 0.5 to 2.5 alkyl groups and/or from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit;

(2) contacting the clean textile material from step (1) with a composition comprised of an alkylated and/or hydroxyalkylated soil release-capable cellulose derivative having an average of from 0.5 to 2.5 alkyl groups and/or from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit.

13. The method of claim 12 wherein the composition of step (2) is further comprised of an ester quat.

14. The method of claim 13 wherein the ester quat is present in an amount of from 5% by weight to 25% by weight.

15. The process of claim 14 wherein the amount of the ester quat is from 8% by weight to 20% by weight.

16. The method of claim 12 wherein the laundry detergent is comprised of from 0.1% by weight of the cellulose derivative.

17. The method of claim 16 wherein the amount of the cellulose derivative is from 0.5% by weight to 2.5% by weight.

18. The method of claim 12 wherein the amount of bleach is from 5% by weight to 70% by weight

19. The method of claim 18 wherein the laundry detergent is further comprised of from 2% by weight to 10% by weight of a bleach activator.

20. A composition for cleaning a textile material comprising bleach and an alkylated and/or hydroxyalkylated soil release-capable cellulose derivative having an average of from 0.5 to 2.5 alkyl groups and/or from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit.