Although the proportion of organic pigment in paint is less than that of inorganic pigment, the application of organic pigment in paint is more and more extensive with the continuous progress of coating technology, the demand of coating development direction and the inherent characteristics of organic pigment. Chinese alias of fluorescent yellow 8g: solvent green 5; diisobutyl perylene dicarboxylate, molecular formula: c30h28o4, molecular weight: 452.55, CAS No.: 79869-59-3. Among them, high performance, environmental protection type organic dyes are expected to become the main development trend in the future.
Market analysis of organic pigments from the perspective of domestic production, the output of organic pigments in China has remained at the level of 180000-220000 tons for a long time, accounting for about 40% of the world total. In recent years, due to the pressure of domestic and foreign demand market and inflation, the production pressure of organic pigment industry has increased. Accelerating enterprise transformation, adjusting product structure and promoting energy conservation and emission reduction have become the focus of the work of organic pigment enterprises.
After adjustment and transformation, the organic pigment industry is actively developing towards high-end and nationalization, strengthening technological innovation and new product research and development, and improving the profitability of products. According to the forecast and analysis report on the production and marketing demand and investment of China's organic pigment industry issued by forward looking Industry Research Institute, the output of organic pigment in China exceeded 300000 tons in 2014 and reached 328200 tons in 2016, showing a steady growth trend.
Organic pigments can be divided into azo pigment, phthalocyanine pigment, triarylmethane pigment and polycyclic pigment. The proportion of phthalocyanine is the highest, accounting for 59%. In terms of import and export, the organic pigment industry is affected by economic situation at home and abroad, changes in Global trade demand, environmental protection, industrial upgrading and other factors. The total production capacity of domestic organic pigment industry shows a certain trend of fluctuation. Pigment yellow 151 is suitable for high-grade industrial coatings, automotive primer (OEM), and can be used with phthalocyanine and inorganic pigments. It can also be used for coloring polyester laminated plastic film printing ink. In 2015, the export volume of organic pigments reached 141899.24 tons, and the import volume was 16750.16 tons.
China is the largest producer and exporter of organic pigments in the world, while developed countries are the main market of organic pigments. With the improvement of China's organic pigment industry, it is expected to strive for a greater voice in the future.
Application of organic pigments: organic pigments are mainly used in plastics, inks, and coatings, of which coatings account for about 35%. The annual consumption growth rate is about 2.5%, and the sales growth rate is 3%. The organic pigments used in coatings are monoazo yellow and phthalic pigment, which are mainly used in architectural coatings, automotive coatings and coil coatings.
As an important component of latex paint, the selection and use of organic pigments directly affect the color retention of latex paint. The understanding of pigment performance and application can guide the production of high-quality latex paint. Pigment yellow 128 pigment is the substance that can make an object color. Pigments are soluble and insoluble, inorganic and organic. Inorganic pigments are generally mineral substances. Human beings have known for a long time the use of inorganic pigments, the use of colored soil and ore, painting and daubing the body on the rock wall. In general, the use of the pigment in the original physical process will not be affected by the use of chemical factors. The coloring of organic pigments is realized by selective absorption and scattering of light.
In the aspect of automobile coatings, the pigment used in automobile coatings is a kind of high-quality colorant because of its weather resistance, heat resistance, acid rain resistance, UV resistance and so on. Therefore, the application of organic pigments in automotive coatings must have the stability of, chemical resistance, anti permeability, thermal stability; for automotive topcoats, such as metallic flash paint, organic pigments need to have high transparency, which can complement the covering power of inorganic pigments.
In terms of coil coatings, coil coatings are divided into top coat, primer and back paint according to their functions. The varieties of primer mainly include epoxy, polyester and polyurethane; the varieties of top coat and back paint mainly include PVC plastic melt adhesive, polyester, polyurethane, acrylic acid, fluorocarbon and silicon modified polyester, etc. In the production process of color plate, 20-25kg coil coating is consumed per ton of zinc plate, and 70% of the coating is used with (use) pigment. The common colors are white gray, sea blue and scarlet, of which white gray accounts for about 50%, sea blue about 30%, scarlet about 10%, and other colors about 10%. The organic pigments in sea blue and crimson account for about 3% - 5% of the coil coatings.