Optical Brightener ER-II
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Optical Brightener ER-II

Optical Brightener ER-II is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter. Optical Brightener ER-II mainly used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.

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Product Description

Optical Brightener ER-II is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter.
Optical Brightener ER-II mainly used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.


Product Name

Optical Brightener ER-II

Chemical Name

1,4'-bis(2,4'-cyano-phenlene)-benzene

CAS No.

13001-38-2

C.I. No.

199:1

Structural Formula

Molecular Formula

C24H16N2

Molecular Weight

332

Porperty

Bluish color shade with high whitening brightening effect and excellent fastness to sublimation.

Technical Index

Appearance:slight yellow powder Melting Point:183~185°C
Purity:≥99% Maximum UV Absorption
Spectrum:369nm

Uses

Mainly be used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.

Package

10kg/25kg per fiber drum




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