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Ultramarine Blue is a saturated, semitransparent, dark, violet-leaning blue.Ultramarine is a complex sodium silicate containing sulfur and aluminum with the chemical formula Na7Al6Si6O24S3. The intense and distinctive blue color is caused by the unpaired electrons in the sulfur radical anion s3-. Ultramarine has heat and alkali resistant properties. It is chemically stable under normal conditions and resistant to high temperatures.The pigment is also resistant to alkaline solutions and can therefore be used in frescoes. It is usually be used as a colourant and optical brightener for plastics, rubber, inks, color painting, textiles, paper, cosmetics, detergents, cement and architecture.Ultramarine's unique property of flocculation—the tendency of its particles to clump up together—give it a lively granulating texture in washes. Ultramarine Blue Purity 99%min with CAS No 57455-37-5.

Whitening Masterbatch is a kind of color masterbatch, commonly known as plastic colorant, is an additive on plastic, mainly plays the role of whitening. Most of the masterbatch manufacturers will add white masterbatch whitening agent, this can avoid the raw material stirring, avoid uneven stirring resulting in the appearance of the finished product not beautiful. At the same time, downstream plastic products no longer need to use fluorescent whitening agent alone.The following is about Masterbatch Whitening Agent OB-1.

Fluorescent Brightener ER-III is a good whitening agent for polyester, ethylic acid and nylon, especially for plastic. Mixed with ER-I and ER-II can improve thermal stability.Usage: Add 0.02-0.08% (compared to polyester), or adjust according to the requirements of whiteness, or add matting agent, blue-violet dye. If you need to mix with ER-I, ER-II, 10-60% of the mixture is best.

Optical Brightener ER-III is a good whitening agent for polyester, ethylic acid and nylon, especially for plastic. Mixed with ER-I and ER-II can improve thermal stability，can absorb UV light then emit visible blue light to reduce the yellowish and make the products more white. Usage: Add 0.02-0.08% (compared to polyester), or adjust according to the requirements of whiteness, or add matting agent, blue-violet dye. If you need to mix with ER-I, ER-II, 10-60% of the mixture is best. Optical Brightener ER-III Pure Powder 99%min with CAS No 13001-40-6

Solvent Blue 35, standard transparent blue oil-soluble dye with brilliant green light, with excellent heat resistance, light resistance and migration resistance, coloring on plastics with bright and bright hues. It can be used for pre-spinning coloring of various plastics, polyesters and fibers.

Fluorescent whitening agent KSN a chemical additive commonly used in the plastics industry, in particular has a good whitening effect for Eva foamed material, KSN widely used for Eva foaming whitening, polyester fiber and plastic products whitening.Welcome to buy Fluorescent whitening agent KSN for Eva foaming from us.