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Manufacturing method of FDY (fully drawn yarn) fine denier differentiation series products

A technology for a series of products and manufacturing methods, applied in the field of chemical fiber product manufacturing, can solve problems such as new product development and weak marketing, and achieve the effect of high social value, broad market prospects, and fine texture

Inactive Publication Date: 2012-07-11
TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after the rapid growth of my country's chemical fiber industry in the past 10 years, technological progress has been very prominent, and the application fields of fibers and products have continued to expand. However, the development of the industry is still based on the growth of quantity. weak

Method used

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  • Manufacturing method of FDY (fully drawn yarn) fine denier differentiation series products
  • Manufacturing method of FDY (fully drawn yarn) fine denier differentiation series products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the manufacturing method of the FDY fine denier differentiated series products described in this example includes the following production steps: polymerization finalizer→melt distributor→booster pump→melt delivery→cooler→static mixer→ Melt distribution valve→spinning box→melt extrusion of metering pump→spinning assembly→circular blower→cooling and forming→oiling with double nozzles→spinning channel→pre-internet→first hot roller→second hot roller→ Main network → wire guide → broken wire detector → winding machine → doffing → dyeing and grading → quality inspection and packaging, in which:

[0032] In the spinning box step, a spinneret with a hole diameter of 0.16 mm and a hole depth of 0.60 mm; a length-to-diameter ratio L / D of 3.75 is used, and the spinnerets are arranged in a W-shaped staggered manner as a whole. Equipped with a heating device, the heating device has a slow cooling effect. By designing the slow cooling heating device, the s...

Embodiment 2

[0065] The manufacturing method of the FDY fine denier differentiated series products described in this embodiment, the spinneret length-to-diameter ratio L / D is 3.56 (0.16 millimeter of hole diameter, 0.57 millimeter of hole depth), and the length of the windless air duct is 60CM, described There is a partition plate in the middle of the spinneret to divide the nozzle hole into two areas. This unique separation technology in the middle of the plate reduces the shear stress of the melt in the spinneret microhole and reduces the melt outlet. Puffing effect, improve spinnability, and achieve the effects of uniform filament separation and uniform cooling; others are the same as in embodiment 1.

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Abstract

The invention discloses a manufacturing method of FDY (full drawn yarn) fine denier differentiation series products, which includes the following production steps of polymerizing in a final-polymerization kettle; distributing by a melt distributor, boosting by a boosting pump; conveying melts; cooling by a cooler, mixing by a static mixer, distributing by a melt distribution valve and spinning in a spinning box; extruding the melts through a metering pump; utilizing a spinning component and a circular blower; cooling and forming; applying oil on double oil nozzles; passing a spinning shaft; setting a pre-network; passing a first heat roll and a second heat roll; setting a main network; passing a yarn guider, a yarn breakage detector and a winder; doffing, dyeing and grading; and performing quality inspection and package, wherein spinneret plates with the ratio L / D of the length (L) to the diameter (D) of 3.56-3.75 are utilized in the step of spinning in the spinning box and staggered in a W-shaped manner, heating devices are arranged on the peripheries of the spinneret plates, the distance between the surface of each spinneret plate and an airless area at the upper end of the cooling blower is set to be 75mm in the step of passing the circular blower. Accordingly, the FDY fine denier differentiation series products manufactured by the manufacturing method are more excellent in quality.

Description

technical field [0001] The invention relates to a manufacturing method of chemical fiber products, in particular to a manufacturing method of FDY fine denier differentiated series products. Background technique [0002] During the "Eleventh Five-Year Plan" period that just passed, my country's chemical fiber industry maintained an average annual growth rate of 13%. In 2010, China's chemical fiber production accounted for 71% of the total domestic textile fiber processing, and chemical fiber production accounted for more than 60% of the world. , These achievements illustrate the development scale of my country's chemical fiber industry, but the pure quantity advantage is not enough to become the goal of the industry's future development. He Yanli, deputy director of the Industrial Coordination Department of the National Development and Reform Commission, said how to think about the development of the chemical fiber industry in the context of national restructuring, transformat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D1/02D01D4/02
Inventor 陈士南赵宝东沈建伦李红良张尚垛张玉勤
Owner TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER
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