# US 2013/0239338 A1 · Laundry article having cleaning properties

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- Number: US 2013/0239338 A1
- Document ID: US20130239338A1
- Status: Published application
- Kind: A1
- Application number: 13/875,468
- Filed: 2013-05-02
- Published: 2013-09-19
- Earliest claimed: 2010-11-03
- Assignees: Henkel AG & Co. KGaA
- Applicants: Henkel AG & Co. Kgaa
- Inventors: Matthias Sunder; Michael Voelker
- Web page: https://patentgrep.com/patent/US20130239338A1

## CPC

- C11D 17/046: {Insoluble free body dispenser}
- C11D 3/222: {Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin}
- C11D 3/386: Preparations containing enzymes {, e.g. protease or amylase}
- C11D 17/041: {Compositions releasably affixed on a substrate or incorporated into a dispensing means}
- C11D 17/049: {Cleaning or scouring pads; Wipes}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The invention discloses a laundry article used for cleaning fabrics comprising a water-insoluble nonwoven substrate and coated thereon into at least one zone each a detergent composition and an enzyme-containing composition. The enzyme-containing composition comprises an enzyme embedded in a thickened matrix.

## Claims

### Claim 1

A laundry article used for cleaning fabrics comprising:
a. a water-insoluble nonwoven substrate;
b. a detergent composition solidified on the substrate in at least one zone; and,
c. an enzyme-containing composition solidified on the substrate in at least one zone,
wherein the enzyme-containing composition comprises an enzyme embedded in a matrix and
wherein the matrix comprises a fatty acid soap and a shear activated thickener.

### Claim 2 (depends on 1)

The article of claim 1, wherein the matrix is at a level from 50% by weight to 99.9% by weight of the enzyme-containing composition.

### Claim 3 (depends on 2)

The article of claim 2, wherein the enzyme is at a level from 0.1% by weight to 50% by weight of the enzyme-containing composition.

### Claim 4 (depends on 3)

The article of claim 3, wherein the enzyme-containing composition additionally comprises an ingredient selected from enzyme stabilizers, polyols, buffer substances and mixtures thereof.

### Claim 5 (depends on 1)

The article of claim 1, wherein the enzyme is selected from proteases, lipases, amylases, cellulases, cutinases, oxidases, peroxidases, mannanases, tannases, perhydrolases, laccases, and mixtures thereof.

### Claim 6 (depends on 1)

The article of claim 1, wherein the shear activated thickener is a polysaccharide biopolymer.

### Claim 7 (depends on 6)

The article claim 6, wherein the shear activated thickener is a polysaccharide biopolymer selected from xanthan gum, locust bean gum, gum arabic, guar gum, gellan and mixtures thereof.

### Claim 8 (depends on 1)

The article of claim 1, wherein the shear activated thickener is present at a level from 0.05% to 2% by weight of the enzyme-containing composition.

### Claim 9 (depends on 1)

The article of claim 1, wherein the fatty acid soap is selected from the group of metal salts and ammonium salts of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucaic acid, linoleic acid, linolenic acid, oleic acid, (hydrogenated) behenic acid, coconut fatty acid, palm kernel fatty acid, olive oil fatty acid, and tallow fatty acid.

### Claim 10

A method of producing a laundry article laundry article used for cleaning fabrics comprising a water-insoluble nonwoven substrate, a detergent composition and an enzyme-containing composition comprising the steps of:
a. melting a detergent composition;
b. melting a matrix material;
c. adding an enzyme to the molten matrix material;
d. shearing the molten enzyme-containing composition,
e. supplying a length of nonwoven substrate; and,
f. coating said substrate with both the molten detergent composition and the molten enzyme-containing composition into at least one zone each and allowing the resulting detergent and enzyme-containing composition zones to cool and solidify on the substrate.

### Claim 11 (depends on 1)

A method of washing fabrics comprising the steps of:
a. supplying the laundry article of claim 1; and
b. washing a load of fabrics in a laundry machine with said article.