IP Library › Granted Patent US 6,866,687
Granted Patent B2
US 6,866,687 · App. 10/671,286 · Granted Mar 15, 2005

Composition and method for bleaching a substrate

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Quick Facts
Patent No.
US 6,866,687
App. No.
10/671,286
Granted
Mar 15, 2005
Kind
B2
Abstract

The present invention provides a bleaching composition comprising iodine.

Claims (17)

1. A method of bleaching a textile, the textile carrying a stain, the method comprising the following steps:

(i) adding a unit dose of a bleaching composition comprising: iodine in the range from 0.0005 wt % to 5 wt % by weight of the composition; and, the balance carriers and adjunct ingredients to an aqueous medium thereby providing an aqueous iodine bleaching environment, the environment being buffered in a pH ranging from 4 to 9;

(ii) contacting the textile with the aqueous iodine bleaching environment;

(iii) rinsing the textile with water; and,

(iv) drying the textile.

2. A method according to claim 1 , wherein the aqueous iodine bleaching environment comprises iodine at a concentration in the range from 3 to 30 ppm.

3. A method of bleaching a textile according to claim 1 , wherein the bleaching composition comprises a builder.

4. A method of bleaching a textile according to claim 1 , wherein the bleaching composition comprises a fluorescent agent.

5. A method of bleaching a textile according to claim 1 , wherein the bleaching composition comprises an enzyme.

6. A method of bleaching a textile according claim 1 , wherein the environment is buffered in the pH range from 7 to 9.

7. A method of bleaching a textile according to claim 1 , wherein the bleaching composition is provided in the form of a liquid.

8. A method of bleaching a textile according to claim 1 , wherein the bleaching composition is provided in the form of a solid.

9. A method of bleaching a textile according to claim 1 , wherein the iodine has been coated end/or cogranulated with a substance that reduces the vapour pressure of iodine.

10. A method of bleaching a textile according to claim 1 , wherein the bleaching composition comprises a surfactant in the range from 0.5 wt % to 50 wt %.

11. A method of bleaching a textile according to claim 10 , wherein the bleaching composition comprises a surfactant in the range from 5 wt % to 20 wt %.

12. A method of bleaching a textile according to claim 1 , wherein the stain is selected from the group consisting of beta-carotene and turmeric.

13. A method of bleaching a textile according to claim 1 , wherein the bleaching environment is buffered in the pH range from about 5 to about 8.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2017
From: THE SUN PRODUCTS CORPORATION
To: HENKEL IP & HOLDING GMBH
Reel/Frame 041937/0131 →
RELEASE OF SECURITY INTEREST Recorded Sep 14, 2016
From: JPMORGAN CHASE BANK, N.A.
To: THE SUN PRODUCTS CORPORATION
Reel/Frame 040027/0272 →
SECURITY AGREEMENT Recorded Mar 27, 2013
From: THE SUN PRODUCTS CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 030100/0687 →
RELEASE BY SECURITY PARTY AS PREVIOUSLY RECORDED ON REEL 029816 FRAME 0362 Recorded Mar 25, 2013
From: U.S. BANK NATIONAL ASSOCIATION
To: SPOTLESS HOLDING CORP.; SPOTLESS ACQUISITION CORP.; THE SUN PRODUCTS CORPORATION (F/K/A HUISH DETERGENTS, INC.)
Reel/Frame 030080/0550 →
SECOND LIEN GRANT OF SECURITY INTEREST IN PATENT RIGHTS Recorded Feb 14, 2013
From: SPOTLESS HOLDING CORP.; SPOTLESS ACQUISITION CORP.; THE SUN PRODUCTS CORPORATION (F/K/A HUISH DETERGENTS, INC.)
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 029816/0362 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2009
From: CONOPCO, INC.
To: THE SUN PRODUCTS CORPORATION
Reel/Frame 023065/0691 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2004
From: BATCHELOR, STEPHEN NORMAN
To: UNILEVER HOME & PERSONAL CARE USA, DIVISION OF CONOPCO, INC.
Reel/Frame 014238/0163 →