Manufacturers Plastic fluorescent brighteners OB-1 yellowish green with high temperature stability superior quality

Fluorescent brightener OB-1 1 performance Appearance: light yellow crystalline powder Melting point: 357-360 ℃ Purity: ≥98.50% maximum UV absorption wavelength: 374nm UV absorption maximum wavelength: 434nm 2 in particular for the use of this product at a high temperature for each kinds of plastic and plastic products, molding, because of excellent heat resistance, light resistance, resistance to chlorine bleaching properties, so the whitening of polyester fiber polyester and cotton and other whitening effect of fiber mixtures are particularly desirable, and can be polyester dope whitening. 3 Use the brightener OB-1 equivalent to 0.01-0.05% plastic or polyester pellets by weight, in front of various plastic products forming or polyester fibers before spinning, the material can be mixed thoroughly . 4 Packaging storage 20,25kg cardboard packaging and stored in a cool, well-ventilated place. 5 Features Fluorescent brightener OB-1 is an excellent oxazole brighteners, insoluble in water, stable performance, good heat, light, resistant to chlorine bleach and anti-migration properties. 6 Scope OB-1 special high temperature, mainly used in hot melt pad method of whitening for whitening polyester fibers and polyester with cotton and other fibers blended fabric whitening. The product can also be used for ABS, PS, HIPS, PA, PC, PP, and rigid PVC and other plastic whitening, nylon fibers, nylon and polyester was added after OB-1 will be significantly improved whiteness. Join OB-1 recovered material will appear whiter in recycled polyester fiber waste, bottle feeding and slices, and different compound recovery will become more consistent color.