2011 China International Dye exhibition forum held recently, the development trend of the Dye industry became the experts and businessmen’s focus. Participants believe that, with the increasing pressure of environmental protection of domestic and international markets for the products to enhance environmental protection requirements, dye industry future will conform to the trend, the main environmental protection, energy saving and environmental protection products and technology in two aspects of work along both lines of green cleaning, green development path.

The rapid development of industry, the yield of dye ranks the first in the world, holds world total output 60%, the production of dye up to 756000 tons, grow 5% compared to the same period. According to the experts, China dyeing and printing industry has serious pollution problems, many products are residues have on the human body harmful chemical substances. In the European Union in 2006 January implementation of the REACH regulations and so on textile dye environmental raised very tall requirement, China's dyestuff exports have encountered "green barrier" of the problem. The expert thinks the development of environmental protection, energy saving, printing and dyeing industry upgrade and development is the only way. For this, our country" printing and dyeing industry access conditions" (2010 Edition ) also in the" technology and equipment requirements" and "quality management" special request "to the use of advanced technology, using the pollution intensity, energy saving and environmental protection equipment, to development and production of low consumption, low pollution, in line with market demand products, encourage the adoption of new technology, new technology, new equipment, new materials", as the industry access to the rigid condition.

After the meeting, the expert points out, some experiments have demonstrated that, in the traditional dye with proper amount of 4 - trinitrobenzene sulfonic acid used in printing and dyeing industry, can effectively reduce the pollution, the dyeing process of the harmful substance is reduced greatly, but also can prevent with nitro and azo disperse dyes are reduced caused by the color change. On the other hand, the use of environment-friendly dyes products with 4 - trinitrobenzene sulfonic acid can simplify the textile printing and dyeing process, greatly reduce the dyeing and finishing processes in water, electricity consumption and waste discharge, can substantially reduce the downstream printing and dyeing enterprises production and sewage treatment cost, but also can reduce the pressure from printing and dyeing industry energy-saving emission reduction.