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Method for manufacturing bottle piece spinning return material recycled polyester moisture-absorbing sweat-releasing POY filament

A technology of regenerated polyester and moisture absorption and perspiration, which is applied in the melting of filament raw materials, the complete set of equipment for the production of artificial threads, and the melt spinning method. Excellent sweat function

Inactive Publication Date: 2014-03-26
仪征市仲兴环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is no report on the regenerated polyester moisture-absorbing and perspiration-wicking polyester POY filaments from retort spinning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing recycled polyester moisture-absorbing and perspiration-wicking polyester POY filaments from spinning sheet spinning, comprising the following steps:

[0023] Step 1. Pre-crystallize the material. The material is PET retort sheet return; specifically, dry hot air is used for pre-crystallization; when the material is pre-crystallized, the pre-crystallization temperature is 168°C, and the temperature of the dry hot air is 172°C , the air dew point is -60°C, the moisture content of the material is 50ppm, and the drying time is 8 hours.

[0024] Step 2. Material screw feeding: firstly feed the dried PET retort into the screw extruder; when the material is screw fed, the material is PET (polyethylene terephthalate) Refill the retort.

[0025] Step 3, filtration, homopolymerization, pressurization, filtering, homopolymerization, and pressurization of the melt extruded by the extruder to ensure continuous production of spinning and constant melt pressure...

Embodiment 2

[0028] A method for preparing recycled polyester moisture-absorbing and perspiration-wicking polyester POY filaments from spinning sheet spinning, comprising the following steps:

[0029] Step 1. Pre-crystallize the material. The material is PET retort sheet return; specifically, dry hot air is used for pre-crystallization; when the material is pre-crystallized, the pre-crystallization temperature is 172°C, and the temperature of the dry hot air is 174°C , the air dew point is -59°C, the moisture content of the material is 50ppm, and the drying time is 6 hours.

[0030] Step 2. Screw feeding of materials: Feed hot-air-dried PET retorts back into the screw extruder; when feeding materials into screw extruders, the materials are PET (polyethylene terephthalate) retorts piece back.

[0031] Step 3, filtration, homopolymerization, pressurization, filtering, homopolymerization, and pressurization of the melt extruded by the extruder to ensure continuous production of spinning ...

Embodiment 3

[0034] A method for preparing recycled polyester moisture-absorbing and perspiration-wicking polyester POY filaments from spinning sheet spinning, comprising the following steps:

[0035] Step 1. Pre-crystallize the material. The material is PET retort sheet return; specifically, dry hot air is used for pre-crystallization; when the material is pre-crystallized, the pre-crystallization temperature is 176°C, and the temperature of the dry hot air is 176°C , the air dew point is -55°C, the moisture content of the material is 50ppm, and the drying time is 9 hours.

[0036] Step 2. Feed the hot-air-dried PET bottle flakes back into the screw extruder; when the material is screw-fed, the material is PET (polyethylene terephthalate) bottle flakes back.

[0037] Step 3, filtration, homopolymerization, pressurization, filter, homopolymerization, pressurization of the mixture extruded by the extruder to ensure continuous production of spinning and constant melt pressure; the pre-filter...

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PUM

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Abstract

The invention discloses a method for manufacturing a bottle piece spinning return material recycled polyester moisture-absorbing sweat-releasing POY filament. The method includes the following steps that (1) pre-crystallization is carried out on materials, wherein the materials are PET bottle piece return materials, and dried hot air is adopted for pre-crystallization; (2) the materials are fed in a screw mode, the PET bottle piece return materials are dried through hot air, and then the dried PET bottle piece return materials are fed into a screw extruding machine; (3) filtering, homopolymerization and pressurizing are carried out, wherein filtering, homopolymerization and pressurizing are carried out on melts generated through extruding of the extruding machine so as to guarantee continuous production of spun yarn and stability of melt pressure; (4) spinning is carried out, wherein the melts output from a pressurizing pump enter a spinning assembly, and are ejected from a spinneret plate through the spinning assembly and coiled and formed. The bottle piece spinning return material recycled polyester moisture-absorbing sweat-releasing POY filament manufactured in the method is good in moisture-absorbing and sweat-releasing characteristic, size stability and air permeability, and stability of fabrics is not influenced by any environment.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation, in particular to a preparation method of regenerated polyester moisture-absorbing and sweat-wicking polyester POY filaments. Background technique [0002] Products made of recycled polyester moisture-absorbing and sweat-wicking polyester POY filaments are ideal materials for high-end clothing. Specifically: [0003] Moisture absorption and perspiration function: moisture absorption and perspiration requirements and other characteristics, we have made a special design for the key technology and process of this product, first of all, the design of the shape of the spinneret hole, the ratio of the length of the spinneret hole to the width of the blade requires 3: 1. The angle between the three lobes is 120 degrees, and the central part of the arc R=0.20mm. This special design and the adjustment of the size of the side blowing cooling air process make the cross-sectional shape of th...

Claims

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Application Information

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IPC IPC(8): D01D13/00D01D1/04D01D5/08
Inventor 窦宝盛陈士胜
Owner 仪征市仲兴环保科技有限公司
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