Industry Development Trend
China is the world's largest producer and consumer of dyestuffs, but the proportion of product structure is still dominated by low-end products. Product homogenization among manufacturers of conventional varieties is relatively serious and lacks characteristics, and the production capacity of some products is growing too fast, resulting in overcapacity. In the future development of the dyestuff and dyestuff intermediates industry, the integration and automation of the production mode, industrial upgrading and green environmental protection will become important development trends of the industry.
(1) Modernization and upgrading of production equipment.
At present, domestic dyestuff production has undergone technological transformation and process technology has been improved, but most of them are still rough, open, intermittent and labor-intensive operation modes, with poor emergency response capability in environmental protection and safety. The reaction control is not precise enough, resulting in unstable product quality and the yield is difficult to meet the requirements. Firstly, the raw material is wasted, secondly, the reaction products and isomers, and thirdly, it puts pressure on the subsequent waste treatment, increases the production cost, and is not competitive in the international market. Integration and automation, modernization and upgrading of production equipment will help improve the current situation.
2 . R&D of high-end products and expansion of application scope.
In the future, the ecological safety of products will be the key to improve the core competitiveness of dyestuff enterprises. The creation and industrialization of new dyestuff products is the cornerstone of future development of enterprises. Strengthening the research and innovation of high-end products will support the whole industry to move towards the high-end, specifically including reactive dyes,
Acid Dyes and organic pigments with high solubility and high strength; disperse dyes, reactive dyes, acid dyes and organic pigments required for dyeing and finishing processes of ultrafine fibers, high imitation cotton fibers, multi-functional composite fibers, PLA fibers, bamboo fibers, polyester fibers, nylon fibers, wool and other fibers.
(3) Green development is a feature of future industrial development.
At present, China's dyestuff industry has shifted from the development of fixed asset investment and capacity expansion to the relatively flat capacity and technology-oriented development of new normal, environmental protection, quality and efficiency. The dyestuffs industry has made great progress in energy conservation, emission reduction and clean production. On the one hand, great progress has been made in the promotion and demonstration of clean technologies. Clean production preparation technologies such as hydrogenation reduction of dyestuffs and
Pigment Intermediates, membrane filtration of dyestuffs, dry cleaning production of raw pulp, and substitution of organic solvents for aqueous media have been widely applied. On the other hand, the popularization and application of comprehensive utilization and recycling technologies have reduced the generation of "three wastes"; finally, environmental protection investment has been increased, and advanced equipment and technologies have been adopted for the extraction and counter-extraction of high-concentration, difficult-to-degrade wastewater generated during the synthesis process, as well as the harmless treatment of wastewater.
