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Americos white r liquid is fluorescence brightening agent for polyester fibers. it gives brilliant whitening effect which has good fastness to sublimation, light and wet processing. it can be applied by high temperature exhaust or pad-thermo sol method and suitable for whitening effect on texturised polyester and polyester / cotton.

Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic.

(1) fluorescent brightenening agent vbl is a typical representative of bis(triazinylamino)stilbene derivative. (2) it can be soluble in 80 times soft water and shows anion character and the ph value resistant to acid and alkali is 6-11 and the expected ph value of dyeing bath is 8-9.

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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