Chemical Fiber Industry: The Development Of Textile Machinery Accessories Is Endless.

< p > the design and manufacture of spinneret and spinneret are both mysterious and mysterious.

The mystery is to create fine products through meticulous design, precision manufacturing and meticulous management, so as to adapt to the chemical fiber spinning process.

The so-called mystery is the principle of chemical fiber spinning process. It originated from the mould used by farmers to suppress vermicelli and vermicelli in China. Through the continuous innovation of Western industrialized countries, it has formed high-tech products for chemical fiber spinning, and then entered China.

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The varieties, specifications and shapes of spinneret and spinneret are various. There are different requirements for different spinning of P.

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< p > in terms of its terms of use, different spun heads should be used in wet spinning, viscose filament yarn, viscose filament yarn, Vigny rayon short filament, filament yarn, acrylic filament yarn, filament yarn and solvent spinning method.

In dry spinning process, polyester filament, filament, nylon filament, filament, polypropylene filament, filament, polypropylene filament, carpet yarn, acrylic filament and aramid, carbon fiber and spandex are used in different spinneret.

Different spinnerets are needed in the spunlace process and spunbonded process of the nonwovens industry.

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< p > for its shape, the spinneret has a cap shape, a straight wall cap face shape, a closed cap shape, a conical cap shape, a ring shape and a tile shape.

The spinneret is made of flat plate, flange shape, plate ring, flange ring and rectangle.

There are also divided into parallel, leather core, common spinning, split shape, heald, orange petal and other combination type, composite spinning spinneret, spinneret.

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< p > for the diameter of the spinneret, spinneret and spinneret have different pore sizes. The large spinning holes have 1mm, and the small pore size is only 0.07mm or 0.06mm.

The difference in the number of holes on a head and a plate is even greater. There are only a few holes in a small head and a plate, and a large spinneret is as large as 40 thousand holes and 60 thousand holes. There are as many as 100 thousand spinning holes on a large polypropylene short filament spinneret.

The shape of spinning holes is varied. There are hundreds of special-shaped holes in circular holes, T holes, Y holes and C holes.

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< p > in terms of the materials used, according to the characteristics of different polymers and different spinning processes, they use different materials, such as yellow and white gold, useful tantalum, and valuable metals such as stainless steel.

Different materials also bring different processing technology.

The surface treatment of spinneret and spinneret consists of pure tantalum coating, gold, platinum and alloy coating.

The spinneret is made up of different surface treatment processes, such as polished mirror, grinding black surface and ultra-high surface.

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< p > spinneret, < a href= "//www.sjfzxm.com/news/index_c.asp" > spinneret < /a > according to the different raw materials, media and spinning process requirements of different chemical fibers, from the structural design of the shape, the size of the spinning guide holes and the shape of the spinning holes, all kinds of heads and shapes become a complex and changeable series of products.

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< p > chemical > a href= "//www.sjfzxm.com/news/index_c.asp" > fibrous spinneret > /a > through the fine pores of spinneret and spinneret, under different pressure, the different raw liquids are changed from various free states to original and various fiber forms through the spinneret and spinneret, and then the post-processing is processed.

Spinneret and spinneret, which are the key parts of chemical fiber spinning, must have its own core technology.

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< p > our country has about 30000000 tons of traditional < a href= "//www.sjfzxm.com/news/index_c.asp" > chemical fiber < /a > production capacity. To maintain simple reproduction, we need a large amount of spinneret and spinneret.

New types of spinneret and spinneret are needed to increase chemical fiber varieties and improve fiber quality and technology level.

To develop solvent process cellulose fiber spinning, high tech carbon fiber, Aramid 1313, 1414 fiber, polyphenylene sulfide fiber composite spinning and high strength and high modulus polyethylene fiber, new spinneret and spinneret are needed.

With the continuous changes in polymer chemistry, new types of spinneret and spinneret are needed.

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< p > over the past few years, China has imported tens of millions of dollars into spinnerets and spinnerets imported from abroad every year. In 2012, it imported 17 million 720 thousand US dollars.

However, the annual export volume of spinneret and spinneret is only 7 million 167 thousand US dollars, which is 40.4% of the foreign exchange used for import.

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< p > from these import and export digital analysis, we can draw two conclusions: first, there is still room for development of spinneret and spinneret in China.

On the other hand, we can see the gap between spinneret and spinneret production in China.

Among them, there are obvious problems in the spinning process, such as varieties, quality, material selection, processing accuracy, technology level, quality control and service.

This is not only the gap between domestic and foreign product performance, but also the direction of domestic enterprises' efforts in the future.

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