2013年8月30日星期五

Fluorescent Brightener - Introduction

Commonly known as white fluorescent brightener dyes, is a colorless and under UV irradiation can excite PVC lubricant  fluorescent organic compounds, it can improve the whiteness and gloss material. FWA about 15 kinds of basic structure types, nearly 400 kinds of structures. Widely used in papermaking, textile, detergent and other areas
FWA FWA is a fluorescent dye, or a known white dye, is a complex organic compound. Its characteristics are able to produce fluorescence excitation light rays, so that the  tribasic lead sulphate dye substances for similar fluorspar glittering effect, so that the naked eye can see very white substance to achieve whitening effect.
Fluorescent brighteners absorb the invisible ultraviolet light (wavelength range 360-380 nm), is converted to longer wavelength visible light blue or purple, which can compensate for  liquid stabilizer unwanted matrix yellowish, while reflecting incident than the original in the wavelength range of 400-600 nm more visible, so that the products appear whiter, brighter, more vivid. In daily life, many opportunities for contact with fluorescent agents.

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