Generally inorganic pigment light stability better pesticide colorant products, organic colorants, phthalocyanine-based, quinacridone-based, dioxazine, isoindolinone one organic pigment lightfastness very excellent coloring pesticides agent, compared with inorganic pigments intended; ketone, anthraquinone and perylene dyes also have good lightfastness. Migration resistance. Migration colorants are mainly three types, 1) solvent extraction, that water and organic solvents bleeding; 2) Contact the migration, pollution of adjacent objects; 3) surface blooming, mainly due to the colorant in the thermal processing Solubility in the polymer is large, and the room temperature is less soluble pesticide colorant company scale, and thus cause crystallization gradually. Inorganic pigments are generally non-homogeneous dispersion in the polymer, no blooming, and organic pigments in the polymer and other organic pesticides have varying degrees of solubility of the colorant Which is good reputation, more prone to migration. Colorant mainly divided two kinds of pigments and dyes. According to the structure can be divided into organic pigments and inorganic pigments. Dyes are available for most solvents and organic compounds are dyed plastic, the advantages of low density, high tinting strength, good transparency, but it is generally small molecular structure, migration prone coloring. By source points, the colorant can be divided into two categories: the latter as a natural coloring agent coloring finished second to synthetic colorants. Which is good reputation pesticide colorant _ Weifang Fuyuan (certified) _ pesticide colorant provided by Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Technology Limited (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan better future.