Method of treating a fabric

Patent metadata

Field	Value
Publication number	US-2016319224-A1
Application number	US-201615139356-A
Country	US
Kind code	A1
Filing date	Apr 27, 2016
Priority date	Apr 29, 2015
Publication date	Nov 3, 2016
Grant date	—

Abstract

A method of treating a fabric, comprising contacting the fabric with an aqueous liquor comprising a fabric care component selected from the group consisting of cationic softening-compounds, silicone softening-compounds, paraffins, dispersible polyolefins, waxes and mixtures thereof; and contacting the fabric with an aqueous liquor comprising a nuclease enzyme, preferably a deoxyribonuclease or ribonuclease enzyme. The aqueous liquor may be provided by adding a cleaning or treatment composition to water. Preferably the composition comprises a surfactant, the wash liquor comprising from 0.05 to 4 g/l of a surfactant.

First claim

What is claimed is:

1 . A method of treating a fabric, comprising
(i) contacting the fabric with an aqueous liquor comprising a fabric care component selected from the group consisting of cationic softening-compounds, silicone softening-compounds, paraffins, waxes, dispersible polyolefins and mixtures thereof; and (ii) contacting the fabric with an aqueous liquor comprising a nuclease enzyme.

2 . A method according to claim 1 wherein the nuclease enzyme comprises a deoxyribonuclease or ribonuclease enzyme.

3 . A method according to claim 1 wherein the fabric care component comprises a cationic softening compound and/or a silicone softening-compound.

4 . A method according to claim 1 wherein the fabric care component is selected from quaternary ammonium compounds.

5 . A method according to claim 1 wherein the fabric care component is selected from ester quaternary ammonium compounds, and mixtures thereof.

6 . A method according to claim 1 wherein the amount of fabric care component active present in the aqueous liquor is from about 0.005 to about 2 g/l.

7 . A method according to claim 1 wherein steps (i) and (ii) are sequential.

8 . A method according to claim 1 wherein steps (i) and (ii) are simultaneous.

9 . A method according to claim 1 wherein step (i) comprises a rinse step in a laundering process.

10 . A method according to claim 1 wherein step (ii) comprises a laundering step.

11 . A method according to claim 1 wherein the fabric comprises a cellulosic single or blended textile.

12 . A method according to claim 1 wherein the aqueous liquor comprises from about 0.01 ppm to about 1000 ppm of the nuclease enzyme.

13 . A method according to claim 1 wherein the enzyme is selected from the nucleases of any of E.C. classes E.C. 3.1.21.x (where x=1, 2, 3, 4, 5, 6, 7, 8, 9), 3.1.22.y (where y=1, 2, 3, 4, 5), E.C. 3.1.30.z (where z=1, 2) or E.C. 3.1.31.1, or mixtures thereof.

14 . A method according to claim 1 wherein the enzyme has an amino acid sequence with at least 85% identity with any of the amino acid sequences shown in SEQ ID NO:1, SEQ ID NO2 or SEQ ID NO.3.

15 . A method according to claim 1 wherein the enzyme is a microbial ENZYME.

16 . A method according to claim 15 wherein the enzyme is a bacterial enzyme.

17 . A method according to claim 1 wherein the fabric in step (ii) is contacted with a laundry detergent composition in a wash cycle of an automatic washing machine and wherein the length of the wash cycle is at least about 3 minutes and no more than about 20 minutes.

18 . A method according to claim 1 , wherein in step (ii) the fabric is contacted with a laundry cleaning and/or treatment composition in a wash cycle of an automatic washing machine and wherein the wash cycle is run at a temperature of between about 10° C. and 30° C.

Assignees

• Procter & Gamble

Inventors

• Lant Neil Joseph
• Wood Rebecca Louise
• Gummel Jeremie Robert Marcel

Classifications

• D06M15/6436

  containing amino groups · CPC title

• C11D1/62 Primary

  Quaternary ammonium compounds · CPC title

• D06M15/227

  of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated · CPC title

• C12Y301/30

  Endoribonucleases active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters (3.1.30) · CPC title

• C11D3/0015

  liquid · CPC title