The New Nano Technology Of Textile Printing And Dyeing Industry Has Good Application Prospects.

　　 Spin Since the entry of WTO, China's textile industry is facing more fierce competition and challenges. For the traditional textile industry, only by actively absorbing the latest scientific and technological achievements in different fields and interdisciplinary fields, can we further enhance our ability of sustainable development and continue to make greater contributions to the growth of the national economy in order to change "made in China" into "created in China".

The application of nanomaterials and nanotechnology in textile printing and dyeing industry shows good application prospects. At present, it is mainly used for the development of functional chemical fiber materials, functional textile products and functional auxiliaries, such as nano antibacterial polyester filament, staple fiber, anti ultraviolet and infrared line fabrics, antibacterial and deodorizing function auxiliaries, coatings and so on. This article introduces in detail the breakthroughs of several nano materials or nanotechnology in the textile and dyeing industry.

　 Nano special functional fiber technology

The topic "polymer based nano special functional fiber and products" undertaken by Donghua University and other units has made breakthroughs after 3 years of joint research.

We have studied a series of technologies, including the preparation of functional nanomaterials for fiber forming, the surface treatment of high stability and high dispersibility, the preparation of polymer based nano special functional resins, the preparation of polymer nano special functional fibers and their products, and so on. We have conquered the difficulties of nano scale dispersion and homogeneous dispersion in the fiber polymer matrix, and formed the key technology of the one-dimensional nanostructured structure control of high temperature, high pressure and high shear properties of thermoplastic polymers and inorganic nanoparticles, and the effective integration of functional, comfort and spinnability for the first time. Compared with micron technology, the addition of functional components decreased by 50% compared with that of micron technology. The replacement cycle of spinning components extended from 1 weeks to 4 weeks, greatly improving the fiber production rate, reducing equipment wastage and production cost, and saving energy.

At present, a production line of functional nanocomposite resin has been built in 3000t/, and a R & D production base with an annual production capacity of 10000t/ fiber has been built. Wet conduction function PP fiber and its products, antibacterial function PP and pet fibre Et al. Have successfully realized industrialization in Shanghai, such as enterprises in Shanghai and Jin Xia Chemical Fiber Co., Ltd., with a new output value of 325 million yuan, and a total of about 72000000 yuan of new profits and taxes. This led to the development of the upstream and downstream enterprises in the industrial chain with functional fibers as the core, producing a considerable number of jobs, and promoting the upgrading of traditional Chinese chemical fiber industry and improving the quality of people's lives.

Nano eco dyes

Nano eco dye is a new type of dye. Its particle size is less than 100nm and its color fastness is very good. It meets the requirements of oeko-texstan-dardl00. Researchers have specifically discussed the concept, nature, technological innovation and application of nano eco dyes. Dyestuff dyeing has a long history. Dyestuffs and dyestuffs make the fabric colorful and brilliant. However, dyeing and printing still has the following serious shortcomings: after dyeing, the fabric has a large number of floating colors and must be washed, resulting in a large amount of waste water. The printing and dyeing process is long, the equipment is large, the equipment investment is large, the energy consumption is high, the cost is high, the profit is low, and the color fastness is low, most of the products fail to meet the requirements of ecological textiles.

The printing and dyeing process has solved the problem of waste water, and the printing and dyeing process has no waste water discharge. However, there are two disadvantages in printing and dyeing.

1. color fastness is low, especially washing fastness, wet grinding, dry grinding color fastness is poor, product quality is difficult to achieve export requirements.

2. hand feel is bad, if two bath finishing, the handle can be improved, but the cost is increased. "Nano ecological dyes" can solve the above problems of pigment printing and dyeing and dyeing. Thus creating a new era of printing and dyeing technology, nano ecological dyes have not been reported in the literature. Nano meaning means that the dye is made by nanotechnology, and its particle size is less than 100nm. The particle size of ordinary dyes is less than 175 m. Nano eco dyes have adhesives and their color fastness is very good. Its ecological meaning is that the dye itself, printing and dyeing process and printing and dyeing products all conform to the ecological requirements. Because of the special nano structure of the dye, it brings a series of excellent properties: good color fastness, good ecological performance, good process performance, no selectivity to all kinds of fibers, providing a broad market for the application of the product, and transforming traditional technology to use nano technology. printing and dyeing Industry has provided strong technical support.