Abstract

AbstractFrom p‐toluic acid, a series of polymeric fluorescent whitening agents (FWA) was synthesized. In the paper are given the details for the synthesis of the FWA and their intermediates. The products are water‐dispersible or water‐soluble, have good affinity with hydrophobic fabrics, affect the soil‐releasing effect on polyester, soiled or aged cotton fabrics, and can be incorporated into concentrated fabric conditioner, a product type using FWA that is being developed. Polymeric FWA add excellent brightness to polyester and soiled or aged cotton for which the usual anionic FWA have little effect.

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