Dyeing and finishing is an important part of textile production. Dyeing and finishing technology is advanced or not, which directly affects the use value of textiles. The Outline of Scientific and Technological Progress of the “Twelfth Five-Year Plan†(hereinafter referred to as “The Outlineâ€) pointed out that one of the key tasks of the scientific and technological progress of the textile industry during the “12th Five-Year Plan†period is to increase the efficiency of printing and dyeing and efficient short-flow process pretreatment technology. Less watermark dyeing technology and functional finishing technology research and development and promotion efforts. Among the 50 key technologies of the 10 categories that are urgently needed to be broken through in the “Outlineâ€, 6 (including 22 sub-items) involving printing and dyeing high-tech technology are involved. Among the 110 advanced and applicable technologies that are widely promoted in the whole industry, the dyeing and finishing links are involved. There are 20 items.
During the "Eleventh Five-Year Plan" period, advances in dyeing and finishing techniques have greatly improved the quality and functional level of textile fabrics, and a large number of new printing and dyeing techniques have been continuously promoted. During the "Twelfth Five-Year Plan" period, what projects will the D&C industry focus on? What are the key projects to promote? Recently, the reporter of “Textile and Apparel Weekly†interviewed Li Jinbao, Director of the Department of Science and Technology Development of the China Textile Industry Association and President of the China Printing and Dyeing Industry Association, on the achievements of China’s textile dyeing and finishing technology during the “Eleventh Five-Year†period and the “Twelve Five Yearsâ€. During the course of the interview, the topics of dyeing and finishing technology research and development and promotion were discussed.
Twenty-two R&D targets locked the "Twelfth Five-Year Plan" proposed by the "Outline" for the textile industry's scientific and technological research and industrialization projects involving six printing and dyeing high-tech industries, namely high-efficiency short-flow pre-processing technology, low-water and non-watermarked dyeing and processing technologies, and printing and dyeing online. Detection and digital technology, textile functional finishing technology, hemp fiber dyeing and finishing technology and special additives, new fiber and multi-component fiber fabric dyeing and finishing key technologies.
Li Jinbao introduced that the high-efficiency short-flow process pretreatment technology industrialization project is mainly to break through the enzymatic refining technology, key technologies for low-temperature bleaching of cotton fabrics, efficient short-flow technology such as tea saponin decoction and bleaching, and pre-processing technology for cold-rolled fabrics of knitted fabrics. Li Jinbao introduced that these technical studies are progressing smoothly. Shortly after the publication of the "Outline," the biological enzyme pretreatment technology jointly developed by Donghua University, Liaoning Hongfeng Printing and Dyeing Co., Ltd. and other units has been successfully completed and piloted for industrialization. Next, key promotion will be carried out; recently, key technologies for the low-temperature bleaching of cotton fabrics jointly developed by Donghua University, Huafang Co., Ltd. and Qingdao Kangdien Bio-Technology Co., Ltd. have also made major breakthroughs, and are currently undergoing major breakthroughs. A joint stock company conducts a pilot test.
The "Outline" proposes that we must focus on the development of new technologies for water-less and water-free dyeing, and provide technical support for the industry to achieve cleaner production and improve sustainable development capabilities. Li Jinbao introduced that reactive dyes wet steam distillation mainly uses special steam boxes, which are strictly controlled by the computer, so that the dyeing and fixing speeds of the dyes can be adapted to the temperature, and the reactive dyes can be dyed without salt and short flow. The wet short steam technology currently under development in China has a short process, high fixation rate, sufficient penetration of dye liquor, uniform color and bright colors, energy and chemicals savings, and low waste water discharge. Compared with the conventional rolling and steaming process, it saves energy in a comprehensive way. % to 50%. The key technologies for the new transfer printing technology to be further solved in the future include three aspects. One is the development of transfer printing combined with digital inkjet paper; the other is the expansion of the chromatography of natural fiber transfer printing to improve the color fastness; and the third is to explore transfer printing. And paperless printing process and equipment. It is reported that chemical fiber transfer printing has been successfully realized in industrial production.
The "Outline" pointed out that we must focus on the entire process of printing and dyeing production process network monitoring systems, digital printing and other integrated high-tech printing and dyeing online detection and digital technology, improve production efficiency and promote energy conservation. Li Jinbao introduced the whole process of network monitoring system in the printing and dyeing production process. In the future, it is necessary to further solve the key technologies of the digital online acquisition system in the printing and dyeing production process. The development of high-efficiency digital printing integrated technology should focus on three aspects: first, to strengthen the development of inkjet printer nozzles; second, to strengthen the development of high-efficiency, low-cost inkjet inks; and third, to strengthen the development of high-speed inkjet printers. Up to now, China has successfully developed computer color separation, inkjet plate making and textile inkjet printing systems, and used in printing and dyeing enterprises printing proofing. If it is used for industrial production, it needs to further develop nozzles, increase speed, and develop lower cost inks.
The functional finishing technologies of textiles proposed in the "Outline" mainly include composite functions, finishing techniques and protection techniques under extreme conditions. Li Jinbao said that the key issues to be solved in the future in the previous technology are realizing heat regulation and temperature control, waterproof and moisture permeability, sweat absorption, quick drying, skin care, negative ions, antibacterial, anti-UV, radiation protection, and far-infrared finishing functions and effectiveness. , safety and fashion combined. At present, domestic multi-functional finishing auxiliaries and finishing processes are under development. The synchronization of the finishing process and the coordination of the finishing effects are studied to give the fabric a variety of functions. At present, it has achieved good results in fabric far-infrared, anti-electromagnetic wave, water and oil repellent, anti-ultraviolet, and antibacterial textiles. The key issue to be solved in the future is to research and develop textile finishing technologies that are suitable for extreme conditions such as high temperature difference, high light radiation, fire field, and high-energy radiation.
Hemp fiber fabrics are poor in softness, difficult to dye, and poor in color fastness. Therefore, it is urgent to develop corresponding dyeing and finishing techniques to improve the performance of taking. Key technologies for dyeing and finishing of new-type fibers and multi-component fiber fabrics mainly include new fiber dyeing and finishing technologies and differential, functional high-value-added fiber dyeing and finishing technologies, and short-process dyeing and finishing technologies for multi-component fiber fabrics.
The 20th advanced technology “Outline†promoted the “12th Five-Year Plan†advanced application technology promotion project for the textile industry involving 20 dyeing and finishing processes, which belong to six major categories of technologies, ie, high-efficiency short-flow pre-processing technology, and low water No watermark dye processing technology, on-line measurement and control technology, special post-finishing technology, printing and dyeing wastewater treatment and reuse technology, and comprehensive resource utilization technology.
The four processes of efficient short-flow pretreatment technology, bio-enzyme desizing technology, cold-rolled pre-processing technology, and knitted fabric cylinder flat continuous pre-processing production line are high-efficiency short-flow pretreatment technology categories. According to Li Jinbao, the short-process pre-treatment process is short and highly efficient. After implementation, water, electricity, and steam consumption can be reduced by 30% to 50%. The unique feature of bio-enzyme de-slurry technology is that it uses bio-enzymatic process to replace the traditional alkali treatment process. This process is not only beneficial to improve fabric quality, but also conducive to energy conservation and emission reduction.
The eight categories of continuous pad dyeing, cold pad-batch dyeing, dyeing-in-bath, air flow dyeing, and silk digital printing belong to the category of waterless and non-watermarked dyeing processing technologies. Li Jinbao introduced cold pad batch dyeing process equipment and operation is simple, compared with the conventional pad dyeing process, saving water 15%, saving steam 30%, fixation rate increased by about 30%, stable dyeing quality, high color fastness, investment Low cost, fast speed, reduced energy consumption, reduced salt usage. It is reported that Shandong Huafang Co., Ltd. completed the “Research and Development of New Technologies and Key Devices for Cold Rolling and Dyeing of Cotton†as a national science and technology support project for the “Eleventh Five-Year Plan†and won the “Light of Textile†2010 China Textile Industry Association. Science and Technology Award First Prize.
The auxiliary central distribution system and on-line detection and control technologies belong to the online detection metrology control technology category. Auxiliary central distribution system is based on full-closed-loop control system and sensor technology, based on information management in dyes, auxiliaries, equipment, formulas, and other aspects, to achieve automatic weighing, material, and pipeline automatic transmission. The on-line detection and control technologies for fabric moisture content, hot air humidity, etc., are scientifically calculated and accurately metered and fed, so that the printing and dyeing production shifts from extensive to fine, which not only contributes to the control of product quality, but also reduces the need for overfeeding. The burden of environmental governance.
Foam finishing technology and continuous machinery, softening, grinding, cutting and other finishing techniques are two special types of finishing technology. Foaming is used to dilute the chemicals by using air instead of water as the medium. The foam carries chemicals and is applied to the surface of the product. This can reduce the amount of liquid in the fabric by 10% to 50%, which greatly saves energy in the drying process. It can effectively replace the traditional processing methods of large quantities of water and reduce the discharge of sewage. The latter technology changed the pattern of dyeing and finishing based on chemical processing, and achieved the purpose of post-processing through physical processing.
The technology of dyeing and diverting of printing and dyeing wastewater and the treatment and reuse of advanced treatment and reuse technology belong to the category of printing and dyeing wastewater treatment and reuse technology. This technology is mainly to clean up and divert the printing and dyeing wastewater, and to meet the standards for discharge of dyeing raffinate and initial rinse water. At present, this technology has been applied in some enterprises and has achieved certain economic benefits.
The condensate water, cooling water reuse technology, waste heat recovery and utilization of printing and dyeing wastewater, mercerized light alkali recovery are three categories of comprehensive resource utilization technology. Li Jinbao introduced that the recovery efficiency of waste heat recovery and utilization systems for printing and dyeing wastewater is up to 90%. The mercerized light-alkali recovery technology uses a dilute evaporator to recover light alkali, and the amount of water that the sewage treatment station needs to treat is significantly reduced, and the amount of acid used to adjust the tank is greatly reduced.
Li Jinbao said that in addition to strengthening key technology research and development efforts during the “Twelfth Five-Year Plan†period, the most important thing is to increase the promotion of advanced technologies, allow advanced technologies to enter into thousands of enterprises, and serve the entire textile industry. Specifically, we can start from four aspects: first, establish a production alliance to increase the proportion of advanced technology applications; second, establish an industry innovation alliance to promote cooperation between industry, university and research; third, organize industry experts to deepen enterprises and promote advanced technologies; and fourth, increase propaganda.
R&D focus: Breakthroughs in high-efficiency short-flow pretreatment technologies such as bio-enzyme refining, low-temperature bleaching of cotton fabrics, tea saponin decoction and bleaching, and pre-processing technology for cold-rolled fabrics of knitted fabrics. By 2015, pre-processing technologies such as low-temperature bleaching of cotton fabrics will complete industrialization research and development, and accelerate the promotion in the industry; the pre-processing technology of cold-rolled fabrics for knitted fabrics will promote more than 50 production lines in the cylinder and 20 lines in the flat-width route.
The development of low water and high-tech without watermark dyeing and processing will provide technical support for the industry to achieve cleaner production and improve sustainable development capabilities. By 2015, the research and development of industrialized R&D will be carried out on reactive dyes, such as wet short-steaming dyeing, new coating yarn dyeing, new transfer printing, flat cold-rolled batch dyeing of knitted fabrics, low liquid rate dyeing and finishing, and ultrasonic dyeing and finishing.
Research on the entire process of printing and dyeing production network monitoring system, efficient digital printing integration technology such as printing and dyeing on-line detection and digital technology, improve production efficiency and promote energy-saving emission reduction. By 2015, complete the industrial R&D of the entire process network monitoring system, and promote it to 20% of the printing and dyeing industry; the online detection and control system for color difference, grammage, weft density, defect (gray cloth), liquid content, etc. has completed industrialization R&D. And promote it to 10% of the industry.
Research on new fibers such as carbon fiber, polylactic acid, soybeans, and milk, differentiated and functional high-value-added fibers, multi-component fiber fabrics, dyeing and finishing technologies for chemical fiber simulation fabrics, and special functional finishing technologies for textiles to achieve product diversity and individuality To comprehensively improve the quality, grade and added value of domestic fabrics.
Promotion focus: Promote efficient and short-flow pretreatment technologies such as biological enzyme desizing and cold-piling pre-treatment that have been developed. These high-efficiency short-flow pretreatment technologies, such as the promotion of 40% of total printing and dyeing, can achieve annual water saving, 113.3 million tons of sewage reduction, 1.21 million tons of standard coal, and 16.878 million kwh of electricity (equivalent to 67.81 million tons of standard coal. ), By 2015, we will strive to achieve 30% to 40% of the promotion to the industry.
It has promoted the development of mature paint continuous padding, cold pad batch dyeing, dyeing one-bath process, air flow dyeing, liquid dyeing with a bath ratio less than 1:8, silk digital printing, and other waterless and non-watermarking dyeing processing technologies. These waterless and non-watermarking dyeing processing technologies, such as the promotion of 20% of total printing and dyeing, can achieve annual water saving, 50 million tons of sewage discharge reduction, and 78,400 tons of standard coal for energy saving. By 2015, they will strive to achieve 20% of the industry's total sales. ~30%.
It has promoted the development of mature auxiliary central delivery systems, automatic pulping systems, fabric moisture content, hot air humidity, liquid level, door width, roll diameter, edge position, length, temperature, speed difference, preshrinkage rate on-line detection technology. If these technologies are promoted to 20% of the industry, they can save water and reduce pollutant emissions by 24,500,000 tons per year. By 2015, they will strive to achieve 20% to 30% of the industry's total.
During the "Eleventh Five-Year Plan" period, advances in dyeing and finishing techniques have greatly improved the quality and functional level of textile fabrics, and a large number of new printing and dyeing techniques have been continuously promoted. During the "Twelfth Five-Year Plan" period, what projects will the D&C industry focus on? What are the key projects to promote? Recently, the reporter of “Textile and Apparel Weekly†interviewed Li Jinbao, Director of the Department of Science and Technology Development of the China Textile Industry Association and President of the China Printing and Dyeing Industry Association, on the achievements of China’s textile dyeing and finishing technology during the “Eleventh Five-Year†period and the “Twelve Five Yearsâ€. During the course of the interview, the topics of dyeing and finishing technology research and development and promotion were discussed.
Twenty-two R&D targets locked the "Twelfth Five-Year Plan" proposed by the "Outline" for the textile industry's scientific and technological research and industrialization projects involving six printing and dyeing high-tech industries, namely high-efficiency short-flow pre-processing technology, low-water and non-watermarked dyeing and processing technologies, and printing and dyeing online. Detection and digital technology, textile functional finishing technology, hemp fiber dyeing and finishing technology and special additives, new fiber and multi-component fiber fabric dyeing and finishing key technologies.
Li Jinbao introduced that the high-efficiency short-flow process pretreatment technology industrialization project is mainly to break through the enzymatic refining technology, key technologies for low-temperature bleaching of cotton fabrics, efficient short-flow technology such as tea saponin decoction and bleaching, and pre-processing technology for cold-rolled fabrics of knitted fabrics. Li Jinbao introduced that these technical studies are progressing smoothly. Shortly after the publication of the "Outline," the biological enzyme pretreatment technology jointly developed by Donghua University, Liaoning Hongfeng Printing and Dyeing Co., Ltd. and other units has been successfully completed and piloted for industrialization. Next, key promotion will be carried out; recently, key technologies for the low-temperature bleaching of cotton fabrics jointly developed by Donghua University, Huafang Co., Ltd. and Qingdao Kangdien Bio-Technology Co., Ltd. have also made major breakthroughs, and are currently undergoing major breakthroughs. A joint stock company conducts a pilot test.
The "Outline" proposes that we must focus on the development of new technologies for water-less and water-free dyeing, and provide technical support for the industry to achieve cleaner production and improve sustainable development capabilities. Li Jinbao introduced that reactive dyes wet steam distillation mainly uses special steam boxes, which are strictly controlled by the computer, so that the dyeing and fixing speeds of the dyes can be adapted to the temperature, and the reactive dyes can be dyed without salt and short flow. The wet short steam technology currently under development in China has a short process, high fixation rate, sufficient penetration of dye liquor, uniform color and bright colors, energy and chemicals savings, and low waste water discharge. Compared with the conventional rolling and steaming process, it saves energy in a comprehensive way. % to 50%. The key technologies for the new transfer printing technology to be further solved in the future include three aspects. One is the development of transfer printing combined with digital inkjet paper; the other is the expansion of the chromatography of natural fiber transfer printing to improve the color fastness; and the third is to explore transfer printing. And paperless printing process and equipment. It is reported that chemical fiber transfer printing has been successfully realized in industrial production.
The "Outline" pointed out that we must focus on the entire process of printing and dyeing production process network monitoring systems, digital printing and other integrated high-tech printing and dyeing online detection and digital technology, improve production efficiency and promote energy conservation. Li Jinbao introduced the whole process of network monitoring system in the printing and dyeing production process. In the future, it is necessary to further solve the key technologies of the digital online acquisition system in the printing and dyeing production process. The development of high-efficiency digital printing integrated technology should focus on three aspects: first, to strengthen the development of inkjet printer nozzles; second, to strengthen the development of high-efficiency, low-cost inkjet inks; and third, to strengthen the development of high-speed inkjet printers. Up to now, China has successfully developed computer color separation, inkjet plate making and textile inkjet printing systems, and used in printing and dyeing enterprises printing proofing. If it is used for industrial production, it needs to further develop nozzles, increase speed, and develop lower cost inks.
The functional finishing technologies of textiles proposed in the "Outline" mainly include composite functions, finishing techniques and protection techniques under extreme conditions. Li Jinbao said that the key issues to be solved in the future in the previous technology are realizing heat regulation and temperature control, waterproof and moisture permeability, sweat absorption, quick drying, skin care, negative ions, antibacterial, anti-UV, radiation protection, and far-infrared finishing functions and effectiveness. , safety and fashion combined. At present, domestic multi-functional finishing auxiliaries and finishing processes are under development. The synchronization of the finishing process and the coordination of the finishing effects are studied to give the fabric a variety of functions. At present, it has achieved good results in fabric far-infrared, anti-electromagnetic wave, water and oil repellent, anti-ultraviolet, and antibacterial textiles. The key issue to be solved in the future is to research and develop textile finishing technologies that are suitable for extreme conditions such as high temperature difference, high light radiation, fire field, and high-energy radiation.
Hemp fiber fabrics are poor in softness, difficult to dye, and poor in color fastness. Therefore, it is urgent to develop corresponding dyeing and finishing techniques to improve the performance of taking. Key technologies for dyeing and finishing of new-type fibers and multi-component fiber fabrics mainly include new fiber dyeing and finishing technologies and differential, functional high-value-added fiber dyeing and finishing technologies, and short-process dyeing and finishing technologies for multi-component fiber fabrics.
The 20th advanced technology “Outline†promoted the “12th Five-Year Plan†advanced application technology promotion project for the textile industry involving 20 dyeing and finishing processes, which belong to six major categories of technologies, ie, high-efficiency short-flow pre-processing technology, and low water No watermark dye processing technology, on-line measurement and control technology, special post-finishing technology, printing and dyeing wastewater treatment and reuse technology, and comprehensive resource utilization technology.
The four processes of efficient short-flow pretreatment technology, bio-enzyme desizing technology, cold-rolled pre-processing technology, and knitted fabric cylinder flat continuous pre-processing production line are high-efficiency short-flow pretreatment technology categories. According to Li Jinbao, the short-process pre-treatment process is short and highly efficient. After implementation, water, electricity, and steam consumption can be reduced by 30% to 50%. The unique feature of bio-enzyme de-slurry technology is that it uses bio-enzymatic process to replace the traditional alkali treatment process. This process is not only beneficial to improve fabric quality, but also conducive to energy conservation and emission reduction.
The eight categories of continuous pad dyeing, cold pad-batch dyeing, dyeing-in-bath, air flow dyeing, and silk digital printing belong to the category of waterless and non-watermarked dyeing processing technologies. Li Jinbao introduced cold pad batch dyeing process equipment and operation is simple, compared with the conventional pad dyeing process, saving water 15%, saving steam 30%, fixation rate increased by about 30%, stable dyeing quality, high color fastness, investment Low cost, fast speed, reduced energy consumption, reduced salt usage. It is reported that Shandong Huafang Co., Ltd. completed the “Research and Development of New Technologies and Key Devices for Cold Rolling and Dyeing of Cotton†as a national science and technology support project for the “Eleventh Five-Year Plan†and won the “Light of Textile†2010 China Textile Industry Association. Science and Technology Award First Prize.
The auxiliary central distribution system and on-line detection and control technologies belong to the online detection metrology control technology category. Auxiliary central distribution system is based on full-closed-loop control system and sensor technology, based on information management in dyes, auxiliaries, equipment, formulas, and other aspects, to achieve automatic weighing, material, and pipeline automatic transmission. The on-line detection and control technologies for fabric moisture content, hot air humidity, etc., are scientifically calculated and accurately metered and fed, so that the printing and dyeing production shifts from extensive to fine, which not only contributes to the control of product quality, but also reduces the need for overfeeding. The burden of environmental governance.
Foam finishing technology and continuous machinery, softening, grinding, cutting and other finishing techniques are two special types of finishing technology. Foaming is used to dilute the chemicals by using air instead of water as the medium. The foam carries chemicals and is applied to the surface of the product. This can reduce the amount of liquid in the fabric by 10% to 50%, which greatly saves energy in the drying process. It can effectively replace the traditional processing methods of large quantities of water and reduce the discharge of sewage. The latter technology changed the pattern of dyeing and finishing based on chemical processing, and achieved the purpose of post-processing through physical processing.
The technology of dyeing and diverting of printing and dyeing wastewater and the treatment and reuse of advanced treatment and reuse technology belong to the category of printing and dyeing wastewater treatment and reuse technology. This technology is mainly to clean up and divert the printing and dyeing wastewater, and to meet the standards for discharge of dyeing raffinate and initial rinse water. At present, this technology has been applied in some enterprises and has achieved certain economic benefits.
The condensate water, cooling water reuse technology, waste heat recovery and utilization of printing and dyeing wastewater, mercerized light alkali recovery are three categories of comprehensive resource utilization technology. Li Jinbao introduced that the recovery efficiency of waste heat recovery and utilization systems for printing and dyeing wastewater is up to 90%. The mercerized light-alkali recovery technology uses a dilute evaporator to recover light alkali, and the amount of water that the sewage treatment station needs to treat is significantly reduced, and the amount of acid used to adjust the tank is greatly reduced.
Li Jinbao said that in addition to strengthening key technology research and development efforts during the “Twelfth Five-Year Plan†period, the most important thing is to increase the promotion of advanced technologies, allow advanced technologies to enter into thousands of enterprises, and serve the entire textile industry. Specifically, we can start from four aspects: first, establish a production alliance to increase the proportion of advanced technology applications; second, establish an industry innovation alliance to promote cooperation between industry, university and research; third, organize industry experts to deepen enterprises and promote advanced technologies; and fourth, increase propaganda.
R&D focus: Breakthroughs in high-efficiency short-flow pretreatment technologies such as bio-enzyme refining, low-temperature bleaching of cotton fabrics, tea saponin decoction and bleaching, and pre-processing technology for cold-rolled fabrics of knitted fabrics. By 2015, pre-processing technologies such as low-temperature bleaching of cotton fabrics will complete industrialization research and development, and accelerate the promotion in the industry; the pre-processing technology of cold-rolled fabrics for knitted fabrics will promote more than 50 production lines in the cylinder and 20 lines in the flat-width route.
The development of low water and high-tech without watermark dyeing and processing will provide technical support for the industry to achieve cleaner production and improve sustainable development capabilities. By 2015, the research and development of industrialized R&D will be carried out on reactive dyes, such as wet short-steaming dyeing, new coating yarn dyeing, new transfer printing, flat cold-rolled batch dyeing of knitted fabrics, low liquid rate dyeing and finishing, and ultrasonic dyeing and finishing.
Research on the entire process of printing and dyeing production network monitoring system, efficient digital printing integration technology such as printing and dyeing on-line detection and digital technology, improve production efficiency and promote energy-saving emission reduction. By 2015, complete the industrial R&D of the entire process network monitoring system, and promote it to 20% of the printing and dyeing industry; the online detection and control system for color difference, grammage, weft density, defect (gray cloth), liquid content, etc. has completed industrialization R&D. And promote it to 10% of the industry.
Research on new fibers such as carbon fiber, polylactic acid, soybeans, and milk, differentiated and functional high-value-added fibers, multi-component fiber fabrics, dyeing and finishing technologies for chemical fiber simulation fabrics, and special functional finishing technologies for textiles to achieve product diversity and individuality To comprehensively improve the quality, grade and added value of domestic fabrics.
Promotion focus: Promote efficient and short-flow pretreatment technologies such as biological enzyme desizing and cold-piling pre-treatment that have been developed. These high-efficiency short-flow pretreatment technologies, such as the promotion of 40% of total printing and dyeing, can achieve annual water saving, 113.3 million tons of sewage reduction, 1.21 million tons of standard coal, and 16.878 million kwh of electricity (equivalent to 67.81 million tons of standard coal. ), By 2015, we will strive to achieve 30% to 40% of the promotion to the industry.
It has promoted the development of mature paint continuous padding, cold pad batch dyeing, dyeing one-bath process, air flow dyeing, liquid dyeing with a bath ratio less than 1:8, silk digital printing, and other waterless and non-watermarking dyeing processing technologies. These waterless and non-watermarking dyeing processing technologies, such as the promotion of 20% of total printing and dyeing, can achieve annual water saving, 50 million tons of sewage discharge reduction, and 78,400 tons of standard coal for energy saving. By 2015, they will strive to achieve 20% of the industry's total sales. ~30%.
It has promoted the development of mature auxiliary central delivery systems, automatic pulping systems, fabric moisture content, hot air humidity, liquid level, door width, roll diameter, edge position, length, temperature, speed difference, preshrinkage rate on-line detection technology. If these technologies are promoted to 20% of the industry, they can save water and reduce pollutant emissions by 24,500,000 tons per year. By 2015, they will strive to achieve 20% to 30% of the industry's total.
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