color concentrate have certain requirements for color, and together we have a look on the following points: select color masterbatch!

(1) should be aware of the pigment and other properties, such as for use in food, children's toys, plastic products, pigment should be non-toxic, used for electrical appliances plastic products, should choose electrical insulation good pigment; used for outdoor plastic products should be selected for resistance to climate ageing properties of the pigment.

(2) dispersion, coloring pigments should be good. Pigment dispersing unevenly, affecting the product appearance and performance; pigment coloring is poor, will increase the amount of pigment, material costs improve. The same color material in different resin dispersion and tinting strength is not the same, so in the choice of pigment should pay attention to this point; pigment particle size and dispersion relation, the smaller size of pigment is scattered, the better, tinting strength is strong.

(3) pigment and resin and various additives have no reaction, solvent resistance, mobility, good heat resistance etc.. That is to say, masterbatch can not participate in various chemical reactions. Such as black carbon can control the curing reaction of the polyester plastics, so not in the pet adding carbon black material; as the plastic molding temperature is higher. Therefore, the pigment should in the molding temperature not discoloration decomposition, inorganic pigment resistance good, organic pigment and dye material heat resistance, poor, and this should cause enough attention in the selection of pigment varieties.