Thickening system for incorporating fluorescent whitening agents

Compositions – Organic luminescent material containing compositions – Optical brightening compositions

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252 95, 252 96, 252100, 252102, 25218626, 25218628, 25218629, 25230121, 2523151, 252545, 252404, 252DIG14, 252558, C09K 1106, C11D 339, C11D 942, C11D 342

Patent

active

047643021

ABSTRACT:
A thickening system for laundry products incorporates low levels of a fluorescent whitening agent or dye, a surfactant and an acidic pH adjusting agent. At the acidic pH, the fluorescent whitening agent precipitates as a colloidal particle, and is stabilized by associating with the surfactant, resulting in thickening. Optionally, a C.sub.6-18 soap synergistically increases viscosity. The thickening system may be formulated with a bleaching product and preferably with a peroxide bleach product.

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