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Alibaba offers 756 textile oba optical brightening agent products. about 29% of these are paper chemicals, 54% are plastic auxiliary agents, and 66% are textile auxiliary agents. a wide variety of textile oba optical brightening agent options are available to you,

The whitening effect of optical brightener agent could be estimated by visual method which better under the sunlight or measure by colorimeter. 3.light fastness there is no international standard for testing optical brightener lightfastness in plastics.most tests used din 54004 for reference.

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.

Solvent based inks include pigment and resin (binder), together constituting the solid component of the ink, diluted using a solvent. solvent based inks are used for printing in two distinct technologiesgravure print and flexo print. another classification of solvent-based inks is in accordance to the type of print and packaging nature.

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