# US 2006/0223725 A1 · Detergent composition

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- Number: US 2006/0223725 A1
- Document ID: US20060223725A1
- Status: Published application
- Kind: A1
- Application number: 11/447,427
- Filed: 2006-06-06
- Published: 2006-10-05
- Earliest claimed: 2002-08-07
- Inventors: Fabrizio Meli; Ricardo de Alba; Jose Velazquez
- Web page: https://patentgrep.com/patent/US20060223725A1

## CPC

- C11D 11/0088: {the liquefied ingredients being sprayed or adsorbed onto solid particles}
- C11D 3/505: {encapsulated or adsorbed on a carrier, e.g. zeolite or clay}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A laundry additive composition comprising one or more perfume components in slow release form and wherein the release kinetics are controlled so as to provide a fabric delivery index of at least 0.3.

## Claims

### Claim 1

A laundry additive composition comprising one or more perfume components in slow release form and wherein the release kinetics are controlled so as to provide a fabric delivery index for dry versus wet fabrics of at least 0.3.

### Claim 2 (depends on 1)

A composition according to claim 1, wherein the one or more perfume components has a fabric delivery index of at least 0.5.

### Claim 3 (depends on 1)

A composition according to claim 1 additionally comprising at least one other perfume component of a different composition and olfactory character having a fabric delivery index for dry versus wet fabrics of less than 0.1.

### Claim 4 (depends on 1)

A composition according to claim 1, wherein the perfume component is encapsulated with a water-soluble or dispersible encapsulating agent.

### Claim 5 (depends on 1)

A composition according to claim 1, wherein the perfume component is absorbed on a porous carrier material.

### Claim 6 (depends on 1)

A laundry detergent composition comprising the laundry additive composition of claim 1.

### Claim 7 (depends on 6)

A laundry detergent composition according to claim 6 comprising from 0 wt % to 26 wt % phosphate.

### Claim 8

A process for preparing a solid perfume particle suitable for use in laundering, the process comprises the steps of:
a) contacting a perfume component with a porous carrier material, to form a perfume-loaded material; and
b) contacting the perfume-loaded material with an aqueous solution or dispersion of encapsulating material, to form an intermediate mixture; and
c) drying of the intermediate mixture to form a perfume particle,
wherein, the perfume-loaded material is in contact with the aqueous solution or dispersion of encapsulating material for a period of time of less than 120 minutes prior to drying.

### Claim 9 (depends on 8)

A process according to claim 8, wherein, in step (b), the perfume-loaded material is in contact with the aqueous solution or dispersion of encapsulating material for a period of time of less than 30 minutes.

### Claim 10 (depends on 8)

A process according to claim 8, wherein step (b) is carried out at a temperature of less than 50° C.

### Claim 11 (depends on 8)

A process according to claim 8, wherein, step (b) occurs in a low shear mixer.

### Claim 12 (depends on 8)

A process according to claim 8, wherein, in step (c), the perfume-loaded material is spray dried in a spray-drying tower, and wherein further, the difference in temperature between the inlet air temperature and the outlet air temperature in the spray-drying tower is less than 100° C., preferably less than 80° C.

### Claim 13 (depends on 8)

A perfume particle obtainable by the process of claim 8, wherein the particle has release kinetics such that it provides a fabric delivery index of at least 0.3.

### Claim 14 (depends on 13)

A laundry composition comprising a particle according to claim 13.

### Claim 15 (depends on 1)

A method of perfuming a fabric, comprising the step of contacting a composition according to claim 1, with a fabric.

### Claim 16 (depends on 4)

A method of perfuming a fabric, comprising the step of contacting a perfume particle according to any of claim 4, with a fabric.

### Claim 17 (depends on 14)

A method of perfuming a fabric, comprising the step of contacting a composition according to claim 14, with a fabric.

### Claim 18 (depends on 13)

A method of perfuming a fabric, comprising the step of contacting a perfume particle according to any of claim 13, with a fabric.

### Claim 19 (depends on 5)

A composition according to claim 5, wherein said porous carrier material is an aluminosilicate.