Inorganic pigments have good thermal stability, low-cost advantages of DAP colorant, but it lacks the bright color and transparency, and high color strength organic pigments, colorants colorful DAP quality, but the price is relatively expensive. Inorganic pigments are mainly titanium dioxide, iron oxide, zinc oxide, chromate, tin, cadmium and mercury compounds. Titanium dioxide is among the most widely used white pigment, often with other pigments compatibility with a range of colors too. It has chemical inertness, good thermal stability, inexpensive, coloring strength advantages. The method is characterized by the direct dye coloring additive was added an appropriate amount of powdered toner (pigment or dye) of colored plastic particles, also known as dry coloring. The advantage is good dispersion, low cost, small-batch operation. Because it obviates the other colorants, such as processing of human and material resources consumed masterbatch, paste, and thus lower the cost of DAP colorant products, buyers and sellers are not limits on the amount. Masterbatch manufacturer can not do 1 ~ 2kg DAP colorants companies, but the quality of the toner can be specified as required, preparation is very convenient. Use dye coloring, compared with other granulated coloring resin processed experience a less degradation process helps to reduce the aging of plastic products, to increase its service life. DAP colorants guarantee _ Weifang Fuyuan (certified) _ DAP colorants provided by Environmental Science and Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan a better future.