Optical brightener SWN
Specification
Appearance: white to light brown crystalline powder
Ultraviolet absorption: 1000-1100
Content (mass fraction)/%≥98.5%
Melting point: 68.5-72.0
Application
It is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. It also can be used in cotton, plastic and chromatically press paint, and added into resin to whiten the fiber cellulose.
Package and Storage
1. 25kg drums
2. Stored in a cool and ventilated place.
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