Claims
- 1. A liquid coloured thickened bleaching composition having a viscosity of from 10 cps to 2000 cps, when measured with a Carri-med CSL2-100® rheometer, at the following viscosity parameters : angle 1°58′, gap 60 μm, diameter 4.0 cm, inner 63.60 dyne*cm*s2, temperature of 25° C. and a shear rate of 30 sec−1 and comprising:a hypohalitc bleach, an alkyl (alkoxy)n sulphate, wherein n is from 2 to 4, optionally a co-surfactant, and cobalt aluminate blue pigment.
- 2. A composition according to claim 1, wherein said hypohalite bleach is an alkali metal sodium hypochlorite.
- 3. A composition according to claim 1, wherein said hypohalite bleach, based on active halide, is present in an amount of from 0.1% to 20% by weight of the total liquid composition.
- 4. A composition according to claim 1, wherein said alkyl (alkoxy)2-4 sulphate is a water-soluble salt or acid of the formula:RO(A)nSO3M, wherein R is a substituted or unsubstituted, linear or branched C4-C24 alkyl, A is an ethoxy or propoxy unit, n is an integer from 2 to 4, and M is H, a cation, or mixtures thereof.
- 5. A composition according to claim 1, wherein the alkyl (alkoxy)2-4 sulphate is present in an amount of from 0.1 % to 20% by weight of the total composition.
- 6. A composition according to claim 1, wherein said pigment is present in the composition at a level of from 0.0001% to 0.5% by weight of the total composition.
- 7. A composition according to claim 1 which further comprises a pH buffering component.
- 8. A composition according to claim 7 wherein said pH buffering component is selected from the group consisting of alkali metal salts of carbonates, polycarbonates, sesquicarbonates, silicates, polysilicatcs, boron salt, phosphates, stannates, alluminates, and mixtures thereof.
- 9. A composition according to claim 7 wherein said pH buffering component or mixture thereof, is present in an amount of 0.5% to 9% by weight of the total composition.
- 10. A composition according to claim 1 which further comprises a stabilising agent selected from the group consisting of a radical scavenger, a chelating agent and mixtures thereof.
- 11. A composition according to claim 10 wherein said stabilising agent is an aromatic radical scavenger.
- 12. A composition according to claim 10, wherein said stabilising agent is a chelating agent.
- 13. A composition according to claim 10, wherein the stabilising agent is present in an amount of from 0.01% to 10% by weight of the total composition.
- 14. A composition according to claim 1, wherein said co-surfactant is selected from the group consisting of alkyl sulphates, alkyl aryl sulphonates, zwitterionic surfactants, cationic surfactants and mixtures thereof.
- 15. A composition according to claim 1, wherein said composition further comprises a strong source of alkalinity.
- 16. A composition according to claim 1, which has a viscosity of from 25 cps to 1500 cps.
- 17. A process of bleaching fabrics which comprises the steps of:contacting said fabrics with a liquid bleaching composition according to claim 1, in its diluted or neat form, allowing said fabrics to remain in contact with said bleaching composition for a period of time sufficient to bleach said fabrics, and then rinsing said fabrics with water.
- 18. A process of bleaching fabrics according to claim 17 wherein the bleaching composition is diluted with water at a dilution level up to 500 times its weight.
- 19. A process according to claim 17 wherein said fabrics are washed with a detergent composition comprising at least one surface active agent prior to, during or after said fabrics are contacted with said bleaching composition.
- 20. A process of treating a hard-surface with a composition according to claim 1, wherein said process comprises the step of applying said composition to said hard-surface, or only soiled portions thereof, and optionally rinsing said hard-surface.
Priority Claims (1)
Number |
Date |
Country |
Kind |
98870007 |
Jan 1998 |
EP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims priority under 35 U.S.C. § 120 to U.S. Application Ser. No. 09/600,385, filed Jul. 14, 2000, which is an entry into the U.S. National Stage under 35 U.S.C. § 371 of PCT International Application Ser. No. PCT/US98/27276, filed Dec. 22,1998, now U.S. Pat. No. 6,448,215 which claims priority under PCT Article 8 and 35 U.S.C. § 119 to EPO 98870007.6, filed Jan. 16, 1998.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4623476 |
Nayar et al. |
Nov 1986 |
A |
4917814 |
MacIntyre et al. |
Apr 1990 |
A |
5034150 |
Smith |
Jul 1991 |
A |
Continuations (1)
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Number |
Date |
Country |
Parent |
09/600385 |
|
US |
Child |
10/142086 |
|
US |