Homogeneous aqueous fabric softening composition with stilbene sulfonic acid fluorescent whitener
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United States of America Patent
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Feb 5, 1985
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N/A
app pub date -
Apr 20, 1983
filing date -
Apr 20, 1983
priority date (Note) -
Expired
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Abstract
The invention provides a composition and method wherein fluorescent whitening agents are satisfactorily dispersed in fabric softening compositions and viscosity stability of the composition is achieved. The fabric softening and whitening composition comprises: (i) from about 0.5% to about 10% of a cationic surfactant; (ii) from about 0.001% to about 0.3% of a stilbene sulfonic acid fluorescent whitening agent; (iii) from about 0.001% to about 0.5% of a non-ionizable base; and (iv) deionized water. The method for preparing the fabric softening system comprises forming an organic premix of fabric softening cationic surfactant, stilbene sulfonic acid fluorescent whitening agent and non-ionizable base. The organic premix is then added to deionized water containing other fabric softening adjuncts including an acidic pH adjusting agent to obtain pH of 3-6, the combination being stirred to uniformly disperse all components.
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