| 摘要 |
Solution of a fluorescent whitening agent to be used in the formulation of liquid detergents for hand or machine washing. The solution comprises: a) the substantially water-insoluble fluorescent whitening agent of formula: <IMAGE> +TR <IMAGE> wherein X is sodium, potassium, ammonium or an amine; in an amount >/=5% and </=50% by weight; b) a solvent selected among: ethylene glycol, 1,3 propylene glycol, 1,2 propylene glycol, diethylene glycol, polyethylene glycol with molecular weight up to 400, and mixtures thereof, in an amount >/=50% and </=95% by weight c) water, in an amount >0% and </=10% by weight. |
