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Method of fusion spinning fire resistant special type elastic spandex fiber and producing device thereof

A technology of spandex fiber and high temperature resistance, which is applied in the field of melt-spun spandex spinning, which can solve the problems of high cost, environmental pollution, high energy consumption, etc., and achieve low production cost, improved uniformity, elongation and uniformity Effect

Inactive Publication Date: 2007-03-07
江苏省产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to aim at the above-mentioned defects, and propose a melt direct spinning high temperature resistant material that can effectively overcome the defects of the prior art such as polluted environment, complicated process, large energy consumption, large floor space, large investment and high cost. Method and production equipment for special elastic spandex fiber

Method used

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  • Method of fusion spinning fire resistant special type elastic spandex fiber and producing device thereof
  • Method of fusion spinning fire resistant special type elastic spandex fiber and producing device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, divide two groups, every group mix raw material 100Kg, get polyester polyol (model PBA-44) 62Kg, 75Kg by proportioning, isocyanate (model MDI) 30Kg, 20Kg, butanediol (model BDO-1, 4 ) 8Kg, 5Kg.

[0026] Negative pressure feeding: evacuate to minus 1 kg pressure, add polyester polyol and butanediol into the first purification tank 3 through the first feeding valve 13, and add isocyanate into the third purification tank 5 through the fourth feeding valve 53;

[0027] Heat the heat conduction oil to heat the raw material in the first purification tank 3 to 90°C, and purify in vacuum for 0.5 hours; heat the raw material in the third purification tank 5 to 70°C; purify in vacuum for 0.5 hour, and add 1 kg of pressure after the purification is completed;

[0028] Metering, mixing, and reaction: the raw materials in the first purification tank 3 are heated and pressurized and sent directly to the first reaction tank 11, and the raw materials in the third ...

Embodiment 2

[0031] Embodiment 2, divide two groups, every group mix raw material 100Kg, get polyester polyol (model PBA-44) 62Kg, 75Kg by proportioning, isocyanate (model MDI) 30Kg, 20Kg, butanediol (model BDO-1, 4 ) 8Kg, 5Kg; the first group plus polyether polyol (model PTMG) 8Kg, the second group plus polyether polyol (model PTMG) 16Kg;

[0032] Negative pressure feeding: evacuate to a pressure of minus 1 kg, feed polyester polyol and butanediol into the first purification tank 3 and the second purification tank 4 through the first feeding valve 13 and the second feeding valve 12 respectively, and the isocyanate passes through The fourth feeding valve 53 is added in the third purification tank 5, and the polyether polyol is added into the first purification tank through the first feeding valve;

[0033] Heat the heat conduction oil, heat the first purification tank 3 and the second purification tank 4 to 100°C, and purify in vacuum for 1 hour; heat the third purification tank 5 to...

Embodiment 3

[0037] Embodiment 3, divide two groups, every group mix raw material 100Kg, get polyester polyol (model PBA-44) 62Kg, 75Kg by proportioning, isocyanate (model MDI) 30Kg, 20Kg, butanediol (model BDO-1, 4 ) 8Kg, 5Kg; the first group plus polycaprolactone polyol (model PCL) 8Kg, the second group plus polycaprolactone polyol (model PCL) 25Kg;

[0038] Negative pressure feeding: evacuate to minus 1 kg pressure, add polyester polyol into the first purification tank 3 through the first feeding valve 13, add butanediol into the second purification tank 4 through the second feeding valve 12, and add isocyanate through the The fourth feeding valve 53 is added in the third purification tank 5, and polycaprolactone polyol is added into the first purification tank through the first feeding valve 13;

[0039] Heat the heat conduction oil, heat the first purification tank 3 and the second purification tank 4 to 100°C, and purify in vacuum for 1 hour; heat the third purification tank 5 ...

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Abstract

This invention relates to one method and device for melt straight pin against high temperature of special spandex, which comprises the following steps: original materials weight laying; loading voltage with materials; heating oil; metering, mixing, reacting and extruding; mixing by melting. This invention has advantages of low production cost with about half of current one and two thirds energy consumption than current one while it improves pad by 15 percentage and anti-heat water by 24 percentage and spring reset by 8 percentage.

Description

technical field [0001] The invention relates to a method for directly spinning high-temperature-resistant special elastic spandex fibers by melting and production equipment thereof, and belongs to the technical field of melt-spinning spandex spinning. 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. 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 energy consumption, large floor space, large investment and high cost. , and the elastic spandex fiber yarn produced contains harmful substances to the human body. The known production of thermoplastic spandex elastic fiber, melt chip spinnin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/70D01D5/08D01D1/04
Inventor 杨福兴杨建平杨惠彪
Owner 江苏省产业技术研究院
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