There are white pigment titanium dioxide, zinc oxide, lithopone three. Titanium dioxide rutile and anatase sub-type two structures pesticide manufacturers colorants, high refractive index rutile titanium dioxide, high hiding power, stability, good weather resistance. Carbon black is used black pigment, colorant cheap pesticide company, also has a plastic UV protection (anti-aging) role and the role of conducting the different production processes can be very wide size range of different carbon black, the nature of the differences also great. Divided by use of carbon black pigment carbon black and rubber reinforcing carbon black, carbon black pigment coloring their ability to turn into high pigment carbon black, carbon black pigment and low carbon black pigment. Which pesticide coloring coloring carbon black particles prone to aggregation, to improve the high volume of carbon black, carbon black dispersion to be solved. Test Method (1) is easily dispersed pigment determination Test method: press pigment in plastics coloring Determination to take dilute PVC sheet in half, the roller surface temperature control for 130 ℃, PVC sheet thickness 0.3mm, plastic refining time 7 ~ 8 minutes a piece. Tablet temperature 165 ~ 170 ℃; the tablet dwell time of 1 minute after rapid cooling. Assessment: The following two different shear mixing conditions improve coloring to calculate dispersion. Where 5 is best, 1 is the worst. Pesticide colorant products, Weifang Fuyuan (certified), pesticides 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.