Laundry detergent composition comprising a particle having hueing agent and clay

Patent metadata

Field	Value
Publication number	US-11066559-B2
Application number	US-202016872435-A
Country	US
Kind code	B2
Filing date	May 12, 2020
Priority date	May 9, 2012
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present invention relates to a laundry detergent composition comprising a particle comprising hueing agent and clay. The particle can be incorporated into laundry detergent products, such as a laundry detergent powder. The particle exhibits an excellent storage stability profile with very little bleeding of the hueing dye from the particle, exhibits excellent fabric deposition of the hueing dye during a laundering process without causing any spot staining of the fabric, and does not impact the visual appearance of a laundry detergent powder when incorporated therein.

First claim

What is claimed is:

1. A particle consisting of:
(a) from 0.0001 wt % to 4 wt % of a hueing agent, wherein the hueing agent has the following structure:

wherein:
R 1 and R 2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy;
alkyl capped alkyleneoxy; urea; and amido;
U is a hydrogen, a substituted or unsubstituted amino group;
W is a substituted group comprising an amino moiety and optionally an alkyl and/or aryl moiety, and wherein the substituted group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties;
Y is a hydrogen or a sulfonic acid moiety; and
Z is a sulfonic acid moiety or an amino group substituted with an aryl group or an alkyl group; and
(b) the balance a clay carrier.

2. A particle according to claim 1 , wherein R 1 is an alkoxy group and R 2 is an alkyl group.

3. A particle according to claim 2 , wherein R 1 is a C 1 -C 10 alkoxy and R 2 is a C 1 -C 10 alkyl.

4. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 2000 micrometers.

5. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 1500 micrometers.

6. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 1000 micrometers.

7. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 500 micrometers.

8. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 300 micrometers.

9. A particle according to claim 1 , wherein at least 95 wt % of the clay carrier has a particle size in the range of from 50 micrometers to 200 micrometers.

10. A particle according to claim 1 , wherein the clay carrier is smectite clay.

11. A particle according to claim 1 , wherein the clay carrier is montmorillonite clay.

12. A particle according to claim 1 , wherein the clay carrier is natural montmorillonite clay.

13. A particle according to claim 1 , wherein the clay carrier is bentonite clay.

14. A particle according to claim 1 , wherein the clay carrier is natural bentonite clay.

15. A particle according to claim 1 , wherein the clay carrier is a mixture of natural and synthetic clay.

Assignees

• Milliken & Co

Inventors

• Fernandes Gregory E
• Valenti Dominick J
• Stenger Patrick C
• Miracle Gregory S
• Moon Andrew P
• Mcdonnell Michael

Classifications

• C09B67/0095

  Process features in the making of granulates · CPC title

• C11D17/0034

  Fixed on a solid conventional detergent ingredient · CPC title

• C09B67/0097

  Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes · CPC title

• C11D3/126

  in solid compositions · CPC title

• C09B67/0007 Primary

  with inorganic coatings · CPC title