PROPERTY                   Optical Brightener OB is a kind of benzoxazole compound. It is odorless, hard to dissolve in water, soluble in paraffin, fat,mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic platics,PVC,PS,PE,PP,ABS,Acetate fiber, paint, coating, printing ink,etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze. It can also be used as special marks in indentify anti-fake material if used in printing ink.

APPLICATION            Thoroughly dispersed in all those polymers. If any ultra violet spectrum absorption agent is used in the polymers, the optimal dosage of optical brightener OB should be adjusted.

 PROCEDUR             PVC    white 0.01-0.05%(10value="50" tcsc="0" unitname="g" w:st="on">-50g)         transparent 0.0001-0.001%(0.1value="1" tcsc="0" unitname="g" w:st="on">-1g)         PS     white 0.001%(about value="1" tcsc="0" unitname="g" w:st="on">1g)           transparent 0.0001-0.001%(0.1value="1" tcsc="0" unitname="g" w:st="on">-1g)        ABS    natural color 0.01-0.05%(10value="50" tcsc="0" unitname="g" w:st="on">-50g)   white  0.01-0.05%(10value="50" tcsc="0" unitname="g" w:st="on">-50g)            PE/PP  colorless 0.0005-0.001%(0.5value="1" tcsc="0" unitname="g" w:st="on">-1g)    white 0.005-0.05%(5value="50" tcsc="0" unitname="g" w:st="on">-50g)              other plastic are like above