The Modern Textile Industry Has Entered The Era Of "No Dyeing And Low Dyeing" And Has Broad Prospects For Development.

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The production means to omit most dyeing and finishing processes, reduce the emissions of carbon dioxide and COD, greatly save water and chemicals, realize the high fusion of rich color and clean production, and lead the modern textile industry into the era of "dyed and low dyeing".

Coloring polyester fiber from raw liquor has solved the problems of uneven elasticity, uneven color, low color fastness and high processing cost caused by dyeing after dyeing. The coloring technology of raw liquid can reduce the price of yarn to 50% to 60% of imported dyed products. The color products produced by environmental protection are of high quality, good fastness, water resistance and resistance to friction, and a good matching effect can be achieved by adjusting the mixing ratio with the pigment.

Coloring raw polyester fibers is a good material for making outdoor casual wear, sportswear, industrial textiles, home textiles and uniform.

Production process environmental protection

The processing of fiber products, especially the printing and dyeing and finishing process, will cause a certain degree of environmental pollution. This is an indisputable fact, and it is also the fundamental reason why the outside world will produce a lot of resistance to the dyeing and finishing of fiber products.

The colored polyester fiber produced by coloring technology of raw liquid can solve the problem of water pollution caused by dyeing and finishing, and achieve green fiber and green production.

Specifically, the coloring of the raw liquor refers to polyester melt (or chips) injected into the spinning box before being injected into the dry, fused, filtered and measured pigments. After mixing with the polyester melt effectively and efficiently, the mixture is then blended into the spinning box to spin.

In this production process, we can omit most of the dyeing and finishing processes, reduce carbon dioxide and COD emissions, and save water and chemicals.

The processing of fiber products, especially printing and dyeing, finishing and other processes, uses non-toxic, natural degradable dyes, finishing agents, etc., and uses high and new technologies to carry out cleaner production. The consumption and use of fiber products are friendly and comfortable to human body. After consumption of fiber products, environmental problems will not be caused by abandonment or treatment, and they can be recycled or returned to nature.

The dyed polyester fiber ring of the raw liquid eliminates the pollution of waste water and energy saving after dyeing of fabric or fabric, and the fabric is bright in color, uniform in color and light, fastness to sunlight, water fastness, color fastness to washing, durable and unfading. It is good for environmental protection.

The production of raw coloring fibers means omitting most dyeing and finishing processes, reducing carbon dioxide and COD emissions, saving water and chemicals, achieving a high degree of integration of color and clean production, and leading the modern era.

Enter the era of "no dye and low staining".

Broad prospects for development

With the continuous upgrading of the consumption structure of downstream end products, the market demand for such products is more and more extensive. After seeing the broad development prospects of dyed polyester fiber, Zhejiang Hua Xin new material Limited by Share Ltd, Jiangsu Xia Ke environmental color spinning Limited by Share Ltd, Zhejiang ancient channel new material Limited by Share Ltd, Zhejiang haeld new material Limited by Share Ltd and other enterprises have seized the opportunity to start the research and development of related technology.

Gao Lin, director of the ancient technology center, told reporters that the company began to research and develop colored polyester industrial yarn production technology in 2008, and successfully achieved industrial production in 2009, with an annual capacity of about 3000 tons.

In 2010, the company made bold innovation in the production technology, developed liquid phase thickening melt direct spinning polyester industrial yarn technology, and achieved an industrial application of 200 thousand ton liquid phase direct viscosity melt direct spinning technology in 2011, greatly reducing the unit energy consumption of industrial yarn.

Since the end of 2011, the company has combined the colored polyester industrial yarn spinning technology with the liquid phase thickening melt direct spinning technology, implemented the quantitative injection technology of the rear end pipe of the colored melt, overcome the difficulty of poor fluidity of the high viscosity melt, solved the problem of homogeneous mixing of the pipes, and successfully developed the technology of liquid phase thickening melt direct spinning colored coloured polyester industrial yarn, followed by the use of multi head spinning and stretching technology, the number of single spinning positions increased to 12, and the production of various specifications of colored polyester industrial yarn has increased to 7000 tons.

Halliday has also made long-term development and progress in the research and development of high strength colored polyester industrial filament.

Due to the outstanding achievements in this respect, Halliday also led the formulation of the industry standard of FZ/T54022-2009 "colored polyester industrial filament".

In terms of application technology, the key technologies of raw material coloring polyester fiber, the key technology of weaving, and the key technology of stereotype are very important technologies.

In terms of specific applications, the colored polyester industrial yarn has been widely used in the field of ribbon, fastening belt, traction belt and other fields. At the same time, it has also been well applied in Geomembrane materials. With the improvement of environmental protection system and the continuous development of new products, its application fields will be more and more extensive.

"The total capacity of the global colored polyester industrial yarn is not more than 30 thousand tons, and domestic capacity is about 12 thousand tons, and the global

The demand is not less than 50 thousand tons. Therefore, the colored polyester industrial yarn has a good development space.

However, compared with foreign countries, the fracture strength of colored polyester industrial yarn produced in China is generally low at present, which limits its application in some special fields, such as automobile safety belt and industrial hoisting belt. Domestic enterprises need to constantly upgrade their technology in order to occupy a place in these fields.

Gao Lin said.