Dyes

DiTech Colorant is black granules. It is a dust free product.

Dragonsorb® 312 has a low-volatile polar substance and good thermal stability. Contact with metal ions will not decolorize, especially with short-wavelength ultraviolet light. Therefore, it is often used as a brightener and stabilizer of UV curing systems. This product is recommended for PA, PC, PVC, PU, and PET/PBT resins.

Flyadd® OB-1 is an optical brightener that is used as a good whitening agent for polyester-cotton blend fabric or various kinds of plastics and their products under high temperatures. This product is insoluble in water, but soluble in high boiling point organic solvents such as phenyl-chloride.

Flyadd® 127 functions as an optical brightener. This light yellow powder is used as a good whitening agent for various kinds of plastics and their products, especially on products of plastics such as polyvinyl chloride (PVC) and polystyrenes (PS).

Flyadd® KCB functions as an optical brightener. This yellowish granule/crystal powder is used as a good whitening agent for plastic films, injection-molded materials, ethylene vinyl acetate (EVA) foamed plastics, and rubber products. It is insoluble in water, but soluble in ordinary organic solvents.

Flyadd® OB is used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, acetate fiber, paint, coating, printing ink, etc. It can be added at any stage during the polymer whitening process to give the finished products a bright bluish-white glaze.

SperseBright OB-1 is a fluorescent brightening agent used to whiten engineering plastics, including polyester, polycarbonate, and styrenics. It provides superior Ganz whiteness in PC, PET, PS, and PMMA at concentrations as low as 100 ppm. SperseBright OB-1 can be used alone or in combination with SperseStab hindered amines, antioxidants, and selected UV absorbers.

SperseBright OB is ideal for adhesives, coatings, acrylics, and urethanes, as well as rigid and plasticized PVC. It is a heat-resistant, solvent-soluble, and chemically stable fluorescent whitener supplied in a fine powder form that is easier to dissolve and/or disperse compared to conventional product forms of larger particle sizes. This form is ideal for screen-printing and coating applications. SperseBright OB can be used in combination with antioxidants and certain UV stabilizers that absorb UV-B radiation.