Hopebright 4BK-R

CI：113

CAS：12768-92-2

Hopebright 4BK-R is an optical brightening agent with violet-red shade, mainly used for whitening of cotton, T/C, also suitable for alkali-hydrogen peroxide and whitening in one bath.

Key Features and Typical Benefits:

With excellent whiteness, pure and bright color, high temperature stereotyped

Excellent acid resistance, alkali resistance, hard water resistance and electrolyte resistance

Excellent stability in the range of pH 2-11

Be similar to Synowhite 4BK(Kisco)

Optical brightening agent Specification:

Package & Storage:

25KG kraft bag or catton drum or carton box, can be stored for 12 months under room temperature and hermetic condition without exposure to sunlight.