Method for preparing reclaimed polyester bottle chip spun fine denier moisture absorption and sweat release FDY polyester filament fibers

A technology of polyester bottle flakes, moisture absorption and perspiration, applied in fiber treatment, filament forming treatment, filament/thread forming, etc., can solve the problems of easy fading of fibers, and achieve good wear resistance, tensile elasticity and compression The effect of good elasticity and good heat resistance

Active Publication Date: 2015-05-20
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

[0003] 1) The elastic properties need to be further improved; 2) The hand feeling, hygroscopicity, wear resistance and fiber crimp of the fiber and its products need to be further improved; 3) The fiber is easy to fade

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0011] A method for preparing polyester bottle flakes recycled fine denier moisture-absorbing and sweat-wicking FDY polyester filament fiber of the present invention is to dry the recycled polyester bottle flakes and then pass the dried polyester bottle flakes recycled through electromagnetic vibration Send it into the extruder for melt extrusion, and spin through the five-lobed spinneret hole of the spinneret. The tow is cooled by blowing and enters the stretching machine for stretching, and then it is drawn, shaped, and wound by the winding head. That is to obtain polyester bottle flakes recycled fine denier moisture absorption and perspiration FDY polyester filament fiber. Specifically include the following steps:

[0012] Step 1. Pre-crystallize and dry the material. The material is recycled polyester bottle flakes; specifically, dry hot air is used for pre-crystallization and drying; when the material is pre-crystallized, the pre-crystallization temperature is 168-178°C. ...

Embodiment 1

[0018] A method for preparing polyester bottle flakes back spinning fine denier moisture-absorbing and perspiration-wicking FDY polyester filament fibers, comprising the following steps:

[0019] Step 1. Pre-crystallize the material, which is polyester bottle flakes; specifically, use dry hot air for pre-crystallization; when the material is pre-crystallized, the pre-crystallization temperature is 170 ° 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 30 ppm, and the drying time is 6 hours.

[0020] Step 2. Screw feeding of materials: firstly dry the polyester bottle flakes with hot air, and then feed the dried polyester bottle flakes into the screw extruder through electromagnetic vibration; when feeding the materials by screw, The material is PET (polyethylene terephthalate) bottle flakes return material.

[0021] Step 3, filter, filter the melt after extruder extrusion, guarantee the continuous produc...

Embodiment 2

[0024] A method for preparing polyester bottle flakes back spinning fine denier moisture-absorbing and perspiration-wicking FDY polyester filament fibers, comprising the following steps:

[0025] Step 1. Pre-crystallize the material. The material is polyester bottle flakes; 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. °C, the air dew point is -59 °C, the moisture content of the material is 30 ppm, and the drying time is 5 hours.

[0026] Step 2. Screw feeding of materials: firstly dry the polyester bottle flakes with hot air, and then feed the dried polyester bottle flakes into the screw extruder through electromagnetic vibration; when feeding the materials by screw, The material is recycled PET (polyethylene terephthalate) bottle flakes.

[0027] Step 3, filter, filter the molten matter extruded by the extruder, and ensure the sm...

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PUM

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Abstract

The invention discloses a method for preparing reclaimed polyester bottle chip spun fine denier moisture absorption and sweat release full drawn yarn (FDY) polyester filament fibers. The method comprises the following steps of: 1, pre-crystallizing materials which are reclaimed polyester bottle chips by adopting dry hot air; 2, performing screw feeding on the materials, namely feeding the dried reclaimed polyester bottle chips into a screw extruder by electromagnetic vibration; 3, filtering the melt extruded by the extruder, wherein continuous production of spun yarns and constant pressure of the screw extruder are ensured during filtering; and 4, spinning, namely feeding the mixture from a filter into a spinning assembly, jetting fibers from an spinneret plate with five-leaf spinneret holes through the spinning assembly, and then performing drafting, sizing, winding and shaping. The prepared reclaimed polyester bottle chip spun fine denier moisture absorption and sweat release FDY polyester filament fibers have good durability, size stability and good moisture absorption and sweat release functions.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation, in particular to a method for preparing polyester bottle flake recycled fine denier moisture-absorbing and sweat-wicking FDY polyester filament fiber. Background technique [0002] Polyester bottle flakes are recycled to spin fine denier moisture-absorbing and sweat-wicking FDY polyester filament fibers, but they have the following defects: [0003] 1) The elastic properties need to be further improved; 2) The hand feeling, hygroscopicity, abrasion resistance and fiber crimp of the fiber and its products need to be further improved; 3) The fiber is easy to fade. Contents of the invention [0004] The purpose of the present invention is to provide a method for preparing polyester bottle flake recycled fine denier moisture-absorbing and sweat-wicking FDY polyester filament fiber. [0005] The technical solution for realizing the object of the present invention is: a kind of preparation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/088D01D5/253D01D1/00D01D1/10
Inventor 杨继强窦宝盛陈士胜马达飞陈林
Owner 仪征市仲兴环保科技有限公司
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