Water-soluble unit dose article comprising a solid laundry detergent composition

Patent metadata

Field	Value
Publication number	US-2018362902-A1
Application number	US-201816005723-A
Country	US
Kind code	A1
Filing date	Jun 12, 2018
Priority date	Jun 15, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

Water-soluble unit dose article containing solid laundry detergent composition and water-soluble film.

First claim

What is claimed is:

1 . A water-soluble unit dose article comprising a water-soluble film and a solid particulate laundry detergent composition,
wherein the water-soluble film defines a first internal compartment; and wherein the solid particulate laundry detergent composition is comprised within the first internal compartment; and wherein the solid particulate laundry detergent composition is free flowing within the first internal compartment; and wherein the solid particulate laundry detergent composition comprises a non-soap surfactant.

2 . The water-soluble unit dose article according to claim 1 wherein the water-soluble unit dose article comprises at least a first compartment and a second compartment.

3 . The water-soluble unit dose article according to claim 2 wherein the compartments are arranged in a side-by-side arrangement, a superposed arrangement or a mixture thereof.

4 . The water-soluble unit dose article according to claim 3 wherein at least the second compartment is superposed onto the first compartment.

5 . The water-soluble unit dose article according to claim 2 wherein the second and subsequent compartments comprise a liquid, a solid or a mixture thereof.

6 . The water-soluble unit dose article according to claim 1 wherein the solid particulate laundry detergent composition has a mean particle size of between about 400 microns and about 1000 microns,

7 . The water-soluble unit dose article according to claim 6 wherein the solid particulate laundry detergent composition has a mean particle size of between about 450 microns and about 850 microns.

8 . The water-soluble unit dose article according to claim 1 wherein the solid particulate laundry detergent composition has a bulk density of between about 400 and about 1000g/l.

9 . The water-soluble unit dose article according to claim 1 wherein the solid particulate laundry detergent composition fills between about 25% and about 95% of the available volume within the first compartment, wherein the remaining volume is filled with gas.

10 . The water-soluble unit dose article according to claim 9 wherein the solid particulate laundry detergent composition fills between about 30% and 90% of the available volume within the first compartment, wherein the remaining volume is preferably filled gas.

11 . The water-soluble unit dose article according to claim 1 wherein the first compartment comprises between about 1 g and about 25 g of the solid particulate laundry composition.

12 . The water-soluble unit dose article according to claim 11 wherein the first compartment comprises between about 5 g and about 20 g of the solid particulate laundry composition.

13 . The water-soluble unit dose article according to claim 1 wherein the water-soluble film comprises a blend of polyvinylalcohol polymers and/or polyvinylalcohol copolymers.

14 . The water-soluble unit dose article according to claim 1 wherein the particles are spray-dried particles, agglomerates, extrudates or a mixture thereof.

15 . The water-soluble unit dose article according to claim 14 wherein the agglomerates comprise non-soap surfactant, sodium sulphate and silica.

16 . The water-soluble unit dose article according to claim 1 , wherein the solid laundry detergent composition comprises between about 20% and about 75% by weight of the solid laundry detergent composition of the non-soap surfactant.

17 . The water-soluble unit dose article according to claim 1 wherein the non-soap surfactant comprises a non-soap anionic surfactant, a non-ionic surfactant or a mixture thereof.

18 . The water-soluble unit dose article according to claim 17 wherein the non-soap anionic surfactant comprises linear alkylbenzene sulphonate, alkoxylated alkyl sulphate or a mixture thereof.

19 . A method of washing comprising the steps of adding the water-soluble unit dose article according to claim 1 to sufficient water to dilute the solid particulate laundry detergent composition by a factor of at least about 300 fold to create a wash liquor and contacting fabrics to be washed with said wash liquor.

Assignees

• Procter & Gamble

Inventors

• Somerville Roberts Nigel Patrick
• Brooker Alan Thomas
• Pickering Carly
• Perrie Katie Marie
• Keuleers Robby Renilde François
• Buijs Ned Peter

Classifications

• C11D1/146

  Sulfuric acid esters · CPC title

• C11D1/143

  Sulfonic acid esters · CPC title

• C11D17/044

  Solid compositions · CPC title

• C11D3/124

  Silicon containing, e.g. silica, silex, quartz or glass beads · CPC title

• C11D11/0017

  Chemistry & Metallurgy · mapped topic