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Shandong raytop chemical co.ltd enganed in developement and manufacturing optical brightener from 2005,our high quality enjoy good reputation in china and abroad,leading products are plastics optical brighteing agent ob ob-1 fp-127 ksn kcb,detergent optic

A wide variety of optical brightener manufacturer options are available to you, such as plastic auxiliary agents, coating auxiliary agents, and leather auxiliary agents. there are 612 optical brightener manufacturer suppliers, mainly located in asia.

We claim: 1. a non-fluorescent ink composition for a writing instrument comprising a non-fluorescent pigment pre-dispersed in an alkyd resin, a high boiling point hydrocarbon solvent, and at least one stabilizer selected from the group consisting of antioxidants and anti-skinning agents, wherein the stabilizer of the ink composition prevents the alkyd resin from polymerizing, and the ink …

Optical brightening agent er-iii cas no. 13001-40-6 chemical name: 1,4'-bis(2-cyanostyryl) benzole specifications appearance slight yellow greenish powder melting point 288-201 ℃ purity ≥99% moisture content ≤0.5 application optical brightener 199 is used to the whitening process of dacron, acetic fiber, polyamide fiber, blends of terylene-cotton etc.

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