# US 7,745,385 B2 · Water-soluble pouch comprising a detergent composition

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- Number: US 7,745,385 B2
- Document ID: US7745385B2
- Status: Granted
- Kind: B2
- Application number: 12/413,668
- Filed: 2009-03-30
- Published: 2009-10-08
- Granted: 2010-06-29
- Earliest claimed: 2008-04-02
- Assignees: The Procter & Gamble Company
- Inventors: Alan Thomas Brooker
- Web page: https://patentgrep.com/patent/US7745385B2

## CPC

- C11D 3/40: Dyes {; Pigments}
- C11D 17/042: {Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The present invention relates to a water-soluble pouch comprising a laundry detergent composition comprising reactive dye.

## Claims

### Claim 1

A water-soluble pouch comprising a laundry detergent composition that is essentially free from anionic surfactant and comprising a reactive azo dye component, said pouch comprising:
i.) a first compartment comprising a liquid composition containing a nonionic surfactant that is a C10-C18 alkyl alkoxylated alcohol having an average degree of ethoxylation of from 1 to 10; and
ii.) a second compartment comprising a solid composition comprising said dye component in an amount effective for dyeing fabric or color rejuvenation; and wherein said dye component is a mixture of a first dye (a) having the formula:
and a second dye which is a member selected from the group consisting of dyes having the formulae (b) and mixtures thereof:
and a third dye (c) which is a member selected from the group consisting of dyes having the formulae (c) and mixtures thereof:
wherein the reactive dye component comprises 3% to 90% by weight of (a), at least 3% by weight of (b) and at least 3% by weight of (c), and wherein the composition is essentially free of zeolite builder.

### Claim 2 (depends on 1)

A pouch according to claim 1, wherein upon contact with water the composition has an equilibrium pH of 11.0 or greater at a concentration of 4 g/l in de-ionized water and at a temperature of 20° C.

### Claim 3 (depends on 1)

A pouch according to claim 1, wherein the composition comprises an alkalinity source selected from the group consisting of: sodium silicate, sodium meta-silicate; sodium carbonate and potassium carbonate; potassium hydroxide and sodium hydroxide; and mixtures thereof.

### Claim 4 (depends on 1)

A pouch according to claim 1, wherein the second compartment comprises a source of carbonate in an amount of 10 wt % or greater.

### Claim 5 (depends on 4)

A pouch according to claim 4, wherein the composition comprises from 30 wt % to 70 wt % sodium carbonate.

### Claim 6 (depends on 1)

A pouch according to claim 1, wherein upon contact with water the composition has an equilibrium pH of 10.5 or greater at a concentration of 4 g/l in de-ionized water and at a temperature of 20° C.

### Claim 7 (depends on 1)

A pouch according to claim 1, wherein the nonionic surfactant in the first compartment comprises a predominantly C16 alkyl ethoxylated alcohol having an average degree of ethoxylation of from 3 to 7.

### Claim 8 (depends on 1)

A pouch according to claim 1, wherein the composition comprises an alkyl polyglucoside.

### Claim 9 (depends on 1)

A pouch according to claim 1, wherein the composition is essentially free of sodium sulphate.

### Claim 10 (depends on 1)

A pouch according to claim 1, wherein the composition is essentially free of bleach.

### Claim 11 (depends on 1)

A pouch according to claim 1, wherein the composition is essentially free of phosphate builder.

### Claim 12 (depends on 1)

A pouch according to claim 1, wherein the composition is essentially free of sodium silicate.

### Claim 13 (depends on 1)

A pouch according to claim 1, wherein, the composition comprises from 3 to 25 APU activity of protease, from 10 to 50 KNU activity of amylase and from 750 CEVU to 1,500 CEVU activity of cellulase.