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Classification of optical brighteners

Views: 1007     Author: Site Editor     Publish Time: 2021-04-12      Origin: Site


According to chemical structure, it can be divided into five categories:


1. Stilbene type, used in cotton fiber and some synthetic fibers, papermaking, soap making and other industries, with blue fluorescence;

2. Coumarin type, with the basic structure of coumarone, used in celluloid, PVC, etc., with strong blue fluorescence;

3. Pyrazoline type, used for wool, polyamide, acrylic and other fibers, with green fluorescent color;

4. Benzooxynitride type, used for acrylic and other fibers and polyvinyl chloride, polystyrene and other plastics, with red fluorescence;

5. Phthalimide type, used for polyester, acrylic, nylon and other fibers, with blue fluorescence.

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