Fused direct spinning hyperfine denier polyurethane fibre device in single static agitated reactor

A reaction kettle, ultra-fine denier technology, applied in the field of spandex fiber production, to achieve the effects of small bending stiffness, strong cleaning function, and high water absorption

Inactive Publication Date: 2011-04-20
TAICANG JINXIANG SPANDEX FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the specifications of spandex fibers on the market include ultra-fine denier series (above 5D and below 20D) and conventional series (above 20D). There are only regular series of products, so the superfine denier series of melt direct spinning has always been a gap

Method used

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  • Fused direct spinning hyperfine denier polyurethane fibre device in single static agitated reactor
  • Fused direct spinning hyperfine denier polyurethane fibre device in single static agitated reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] 1. Take 75 kg of polyester polyol, 20 kg of isocyanate, and 5 kg of butanediol;

[0011] 2. Negative pressure feeding, evacuate to negative 0.8MPa pressure, add polyester polyol raw material into the first purification tank through the first feeding valve set on the first purification tank, temperature 103-105 ℃, heat for 45 minutes Purify; the raw material butanediol is added into the second purification tank through the second feeding valve arranged on the second purification tank, the temperature is 106-108 ° C, and it is purified by heating for 45 minutes; the isocyanate is purified through the The third feeding valve is added to the third purification tank, the temperature is 110-112 ° C, and the heating is carried out for 50-55 minutes for purification;

[0012] 3. Add 0.8MPa nitrogen pressure, pass the raw material in the first purification tank through the first metering delivery pump, the raw material in the second purification tank through the second met...

Embodiment 2

[0019] 1. Take 70 kg of polyester polyol, 25 kg of isocyanate, and 5 kg of butanediol;

[0020] 2. Negative pressure feeding, vacuumize to negative 0.8MPa pressure, feed polyester polyol raw material into the first purification tank through the first feeding valve installed on the first purification tank, temperature 103-105 °C, heat 41- Purify in 45 minutes; the raw material butanediol is added into the second purification tank through the second feeding valve arranged on the second purification tank, the temperature is 106-108 ° C, and the purification is carried out by heating for 45-54 minutes; the isocyanate is purified by setting in the third The third feeding valve on the purification tank is fed into the third purification tank at a temperature of 110-112°C and heated for 50-55 minutes for purification;

[0021] 3. Add 0.8MPa nitrogen pressure, pass the raw material in the first purification tank through the first metering delivery pump, the raw material in the s...

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PUM

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Abstract

The invention relates to a fused direct spinning hyperfine denier polyurethane fibre device in a single static agitated reactor, which is characterized by comprising a purification tank, a reaction tank, a metering delivery pump, an agitated reactor heating mixer, a static agitated reactor, a two-screw extruder, a flux filterer, a spinning box, an assembly filter screen spinneret plate, an air duct cooling system, an oiling device, a silk guide roller conducting wire stretch device and a coiler winding and molding device. The device has the advantages that the bending stiffness of the produced hyperfine denier polyurethane fibre is extremely small, and the hand feel of fibre is especially soft; the superficial area of the fibre is large, the coverage, bulkiness and heat retention of fabric are obviously improved, and the cleaning function is extremely strong; hyperfine fibres are manufactured into super-high density fabrics, a gap between the hyperfine fibres is between the diameter of water drop and the diameter of water vapor micro-drop, and have waterproof and ventilation effects; and the fibre can be processed into towel fabric which has the characteristic of high water absorbability, and if the towel is used, the water on washed hair is absorbed rapidly so as to fast dry the hair. The device can be applied to various fields.

Description

technical field [0001] The invention relates to a melting and direct-spinning superfine-denier spandex fiber equipment capable of reacting in a single static reactor, and belongs to the technical field of spandex fiber production. Background technique [0002] Spandex scientific name <polyutethane>Fiber is a highly elastic synthetic fiber developed in recent years, also known as: Spenders <spandex>Fiber, PTMG accounts for 80% (mass molecule) of the final polymer, known as the "second skin" of people. It is highly elastic and can be stretched 6-7 times, but it can quickly return to its original state as the tension disappears. Its molecular structure is a chain-like, soft and extensible polyurethane. Hard segments link together to enhance its properties. At present, it is widely used at home and abroad: chemical spinning, wet spinning and dry spinning. The above three spinning methods will cause environmental pollution in production, complex process, large ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D5/092
Inventor 杨福兴杨建平杨惠彪
Owner TAICANG JINXIANG SPANDEX FIBER
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