Optical Brightener Agent OB-1
Specification:
      ItemIndices
      AppearanceYellowish green powder
      Purity≥ 98.0%
      SmellNo special smell
      Melting point353-359
      Ash≤ 0.5%
      Volatile content≤ 0.5%

Properties:
Optical brightener OB-1 is a execellent diphenylethylene bisbenzoxazole type
compound.it is unsoluble in water and has capablity,also it has good resistance
to heat,sunlight,chlorine beleaching and migration.It owns has especially high
temperature tolrence,suitable for shaping various kinds of plastics ans their
products under high temperature.It has an extra ideal whitening effect on
polyester fibers as well as polyester fiber-containing fabrics including
polyester-cotton blend fabric it can be used to whiten various kinds of
plastics,such as ABS,PS,HIPS,PA,PC,PP,EVA and rigid PVC.With addition of optical
agent OB-1,polyamide fiber,nylon andpolyester have significantly good
whiteness.Mixed with this product,recycling polyester waste material,bottle
material and slice flake with have a higher whiteness than
before,different,recycling materials will have better similar color.
USEAGE:
Optical brightener OB-1 should be throughly dispered in the polymers.when any
ultral-violet absorption agent is added,the optimal dosage of optical brightener
OB-1 will be adjusted accordingly.
DOSAGE: For transparent 0.0025-0.005%   opaque0.01-0.03%
Package:Packaged in cardboard barrels.Net weight is 25KG.
TRANSPORTATION:Should be stored in cool and dry place.