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Production technology of three-dimensional hollow fiber

A production process, three-dimensional hollow technology, applied in the direction of fiber processing, hollow filament manufacturing, fiber chemical characteristics, etc., can solve the problems of low consumption of PET foam material, cumbersome process, high production cost, etc., to reduce degradation and simple production process , the effect of reducing the melt temperature

Inactive Publication Date: 2012-05-09
QUANZHOU SHENGXIN FIBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a production process for three-dimensional hollow fibers, whose purpose is to overcome the problems of less PET foam used in raw materials, cumbersome process and high production cost in the existing production process of using PET foam to produce three-dimensional hollow fibers. shortcoming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A production process of a three-dimensional hollow fiber, comprising the following steps:

[0022] a. Select PET foam material and PET bottle flakes as raw materials, and wash, mix, cut and dry the PET foam material and PET bottle flakes. According to the mass ratio, the PET foam material is 30%, and the PET bottle flakes is 70%;

[0023] b. Put the dried raw material into a screw extruder to melt to form a melt and extrude it through the screw, and the screw speed is controlled at 50-60 rpm;

[0024] c. Filter the melt through a filter cover with a mesh size of 180 meshes. At the same time, control the temperature of the melt to 284°C and measure it through a metering pump. The speed of the metering pump is 24 rpm. ejected from the plate;

[0025] d. Cool the melt sprayed from the spinneret by means of rapid cooling with surrounding air blowing. The air temperature is controlled at 18-20°C. At the same time, the blowing height is reduced to arrange the molecular chain...

Embodiment 2

[0030] A production process of a three-dimensional hollow fiber, comprising the following steps:

[0031] a. Select PET foam material and PET bottle flakes as raw materials, and clean, mix, cut and dry the PET foam material and PET bottle flakes. According to the mass ratio, the PET foam material is 20%, and the PET bottle flakes is 80%;

[0032] b. Put the dried raw material into a screw extruder to melt to form a melt and extrude it through the screw, and the screw speed is controlled at 50-60 rpm;

[0033] c. Filter the melt through a filter cover with a mesh size of 180 meshes. At the same time, control the temperature of the melt to 284°C and measure it through a metering pump. The speed of the metering pump is 24 rpm. ejected from the plate;

[0034] d. Cool the melt sprayed from the spinneret by means of rapid cooling with surrounding air blowing. The air temperature is controlled at 18-20°C. At the same time, the blowing height is reduced to arrange the molecular chai...

Embodiment 3

[0039] A production process of a three-dimensional hollow fiber, comprising the following steps:

[0040] a. Select PET foam material and PET bottle flakes as raw materials, and clean, mix, cut and dry the PET foam material and PET bottle flakes. According to the mass ratio, the PET foam material is 10%, and the PET bottle flakes is 90%;

[0041] b. Put the dried raw material into a screw extruder to melt to form a melt and extrude it through the screw, and the screw speed is controlled at 50-60 rpm;

[0042] c. Filter the melt through a filter cover with a mesh size of 180 meshes. At the same time, control the temperature of the melt to 284°C and measure it through a metering pump. The speed of the metering pump is 24 rpm. ejected from the plate;

[0043] d. Cool the melt sprayed from the spinneret by means of rapid cooling with surrounding air blowing. The air temperature is controlled at 18-20°C. At the same time, the blowing height is reduced to arrange the molecular chai...

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PUM

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Abstract

The invention provides a production technology of a three-dimensional hollow fiber. The production technology comprises the steps of selecting PET (Polyethylene Terephthalate) fabric foam materials and PET bottle chips, cleaning, mixing, shearing, drying, fusing, extruding, filtering, spinning, doffing, bundling, drafting, curling, cutting off, heat setting and drying, thereby forming products, wherein various parameters in the production technology are controlled and devices are improved, thus, much more PET foam materials can be in production materials of the three-dimensional hollow fiber,all technical indexes of the produced products can reach technical requirements, and production cost is reduced greatly, which facilitates mass production.

Description

technical field [0001] The invention relates to a recovery technology, more specifically to a production process of a three-dimensional hollow fiber. Background technique [0002] PET plastic is a polyterephthalic acid plastic with a highly symmetrical molecular structure and a certain crystal orientation ability, so it has high film-forming properties and synthetic properties. Bottles made of PET polyester have the advantages of high strength, good transparency, non-toxicity, impermeability, and light weight, so they are widely used. Since PET polyester can be melted, drawn, and then formed into fibers, more and more production uses PET polyester to produce hollow fibers. [0003] At present, manufacturers of hollow fibers mostly use recycled PET plastic bottle flakes to produce hollow fibers in order to reduce the production cost of hollow fibers. However, PET foam has been unable to be used in the production of polyester three-dimensional hollow fibers due to its low vi...

Claims

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Application Information

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IPC IPC(8): D01D5/24D01D5/08D01D5/088D01D5/12D01D10/02D01D1/00D01D1/10
Inventor 蔡海宾
Owner QUANZHOU SHENGXIN FIBER PROD
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