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Low-temperature and efficient bleaching process for knitted fabrics-low-temperature activation and degreasing technology
Clean printing and dyeing pretreatment, save energy and reduce emissions, reduce costs and increase efficiency, and protect fabrics.
Type
Process technology
Tags
Prevention and control of water pollution sources
Energy conservation and environmental protection
Mathematical
New materials
Solution maturity
Early adoption / Process verification
Cooperation methods
Overall transfer
Technology licensing
Technology shares
Product promotion
Applicable industry
Manufacturing
Applications
Manufacturing
Key innovations
This green technology innovation lies in the front-end management model of printing and dyeing. Through process innovation and auxiliary research and development, emission reduction is achieved at the source, water, electricity, steam consumption and alkaline wastewater emissions are significantly reduced, and product stability is improved, with significant environmental and economic benefits.
Potential economic benefits
This technology can reduce the production costs of enterprises and improve efficiency at the same output value. The project itself has an annual output value of 20 million yuan and a profit of 3 million yuan. The investment will be recovered within one year, with significant economic benefits.
Potential climate benefits
This green technology significantly reduces water, electricity and steam consumption in the textile printing and dyeing process through the front-end management model of printing and dyeing. Reduced electricity and steam consumption directly leads to reduced carbon emissions in the power generation and heating sectors.
Solution supplier
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Shanghai City Textile Research Institute
Shanghai City Textile Research Institute
Shanghai City Textile Research Institute is committed to textile science and technology innovation and transformation of achievements, providing technical services and solutions to the industry, and helping the high-quality development of the textile industry.
Shanghai,China
Solution details

*Technology/project introduction (background, current situation, characteristics, etc.): The increasingly severe environmental pressure has greatly challenged the traditional technologies of textile printing and dyeing enterprises with high water consumption, electricity, steam and high alkali emissions. The printing and dyeing front-end governance model characterized by "clean production","energy conservation and emission reduction" and "sustainable development" is currently an important research content and key breakthrough direction in the textile and dyeing industry. Front-end management uses a systematic and three-dimensional thinking method to solve the impact on the environment during printing and dyeing processing. Compared with traditional end-end management, it uses technological innovation and process transformation to avoid or produce less environmental harm before pollution occurs. Harmful substances and minimize the consumption and impact on water resources, energy and other resources and the environment.  At present, printing and dyeing enterprises mainly focusing on knitted fabrics use traditional high-temperature treatment technologies such as alkali oxygen in pretreatment and processing, which consume high water, electricity, steam, etc., and generate serious pollutants.  

*Main technical indicators: ① The pH value of the treated wastewater is lower than 8.0, and the comprehensive COD is low; ② The damage to the fabric is small; ③ The energy consumption and water consumption are small; ④ The stability of the product is high.  

*Current application situation: The printing and dyeing process of knitted fabrics mainly composed of pure cotton will Then the investment ratio of this project in the industrialization implementation stage is negligible compared with its output benefit.  

*Application prospects of "civilian joining the army" or "military conversion": According to the goals and implementation of the project, the application carriers of this project are processes and additives. The comprehensive R & D cost of the project within four years is 9.12 million yuan, including the development of additives. Two sets of equipment for liquid and solid are established. The production capacity of chemical additives is 2000 tons, the annual output value is about 20 million yuan, the profit is 3 million yuan, and the investment cost is one year. Recovery.  Comprehensive analysis shows that this project has good economic benefits from the aspects of its own return on investment, benefit amplification and cost savings of application companies.  


Last updated
09:27:39, Nov 05, 2025
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