Dosage and effect of optical brightener 185 (C.I.185)

Product name: fluorescent whitening agent EBF, PB, EB.
Domestic manufacturers: hubei wuhan chemical assistant general factory, Shanghai assistant factory, henan anyang assistant factory, etc.
Simbright 25046 (WSS), Uvitex EBF, EBV
(CIBA). Color: blue.
Physical and chemical properties: appearance is light yellow crystal, melting point of 216 ~ 220 ℃ (chlorobenzene recrystallization), a nonionic. Insoluble in water, soluble in organic solvents and concentrated acids. The maximum absorption wavelength is 367m
(DMF), with a maximum emission wavelength of 429nm (toluene). Products are powder and stable dispersion of two dosage forms. The stable dispersion generally contains about 10% of the active components.
Usage: powder products can be used for whitening and brightening of polyolefin plastics, ABS engineering plastics and plexiglass.
It can be used to impregnate, dip and roll a thermosetting method, high temperature and high pressure method to increase white acetate fiber, triacetate fiber, nylon, polyester, polyester and cellulose blend, polyvinyl chloride, polypropylene. It can also be used in chlorite, peroxide or bisulfite bleach solutions. Good whitening performance at low temperature.
The detergent added in this product can make the washed acetate fiber, triacetate fiber, cotton, nylon, polyester, polypropylene and polyvinyl chloride obtain excellent whitening effect.
Application performance: light, soaping and chlorine fastness.

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