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.

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.