Preparation process of low-elastic composite yarns of moisture-absorption and sweet-releasing dacron

A polyester low-elasticity, moisture-absorbing and sweat-wicking technology, which is applied in filament/thread forming, textile and papermaking, fiber treatment, etc., can solve the problem that the fabric feel, appearance, texture, luster and elasticity cannot meet high requirements and product quality cannot meet Requirements, grades cannot meet the requirements, etc., to achieve the effect of plump hand feeling, good moisture absorption and perspiration effect, and significant soft luster

Inactive Publication Date: 2020-03-27
苏州萧然新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing polyester fibers with special-shaped cross-sections have low cross-sectional irregularities, unsatisfactory moisture absorption effects, and product quality that cannot meet the requirements
[0003] In addition, the existing polyester low-stretch ya

Method used

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  • Preparation process of low-elastic composite yarns of moisture-absorption and sweet-releasing dacron
  • Preparation process of low-elastic composite yarns of moisture-absorption and sweet-releasing dacron

Examples

Experimental program
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Effect test

Example Embodiment

[0021] Example 1

[0022] A preparation process for moisture-absorbing and sweat-wicking polyester low-elastic composite yarn, comprising the following steps:

[0023] (1) Preparation of special-shaped POY raw yarn: pass the polyester chip through the wet chip silo and enter the pre-crystallization stage. The temperature of the pre-crystallization is 170°C, and the pre-crystallization time is 14 minutes. After the pre-crystallization, it is homogenized and dried. The drying temperature is 182°C, and the drying time is 5 hours to obtain PET dry chips, which enter the screw extruder. The screw extruder is divided into 6 zones, and the screw temperature is 260-285°C. body, and filter the melt impurities, the melt enters the spinning assembly for melt spinning, the spinning temperature is 285°C, and the fine flow of the melt ejected from the spinning assembly is solidified and cooled by the airflow blown out by the side blowing cooling device to form filaments , wherein, the side...

Example Embodiment

[0026] Example 2

[0027] A preparation process for moisture-absorbing and sweat-wicking polyester low-elastic composite yarn, comprising the following steps:

[0028] (1) Preparation of special-shaped POY raw yarn: pass the polyester chip through the wet chip silo and enter the pre-crystallization stage. The temperature of the pre-crystallization is 173°C, and the pre-crystallization time is 12 minutes. After the pre-crystallization, it is homogenized and dried. The drying temperature is 180°C and the drying time is 6 hours to obtain PET dry chips, which enter the screw extruder. The screw extruder is divided into 6 zones, and the screw temperature is 260-285°C. body, and filter the melt impurities, the melt enters the spinning assembly for melt spinning, the spinning temperature is 285°C, and the fine flow of the melt ejected from the spinning assembly is solidified and cooled by the airflow blown out by the side blowing cooling device to form filaments , wherein, the side ...

Example Embodiment

[0031] Example 3

[0032] A preparation process for moisture-absorbing and sweat-wicking polyester low-elastic composite yarn, comprising the following steps:

[0033] (1) Preparation of special-shaped POY raw yarn: pass the polyester chip through the wet chip silo and enter the pre-crystallization stage. The temperature of the pre-crystallization is 175 ° C, and the pre-crystallization time is 14 minutes. After the pre-crystallization, it is homogenized and dried. The drying temperature is 185°C and the drying time is 4 hours to obtain PET dry chips, which enter the screw extruder. The screw extruder is divided into 6 zones, and the screw temperature is 260-285°C. body, and filter the melt impurities, the melt enters the spinning assembly for melt spinning, the spinning temperature is 290°C, the fine flow of the melt ejected from the spinning assembly is solidified and cooled by the airflow blown out by the side blowing cooling device to form filaments , wherein, the side bl...

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Abstract

The invention discloses a preparation process of low-elastic composite yarns of moisture-absorption and sweat-releasing dacron. The preparation process comprises the following steps that (1) special-shaped POY raw yarns are prepared, specifically, polyester chips are subjected to pre-crystallizing and homogenizing drying to obtain PET dry chips, the PET dry chips are melted at high temperature, amelt is extruded, then melt-spinning is carried out, and solidifying and cooling are carried out to form a strand to obtain the special-shaped POY yarns; (2) special-shaped DTY yarns are prepared, specifically, the POY yarns prepared in the step (1) are subjected to thermal stretching, and then false twisting deformation is carried out to obtain the special-shaped DTY yarns; and (3) the low-elastic composite yarns of the dacron are prepared, specifically, the special-shaped POY raw yarns and the special-shaped DTY yarns are compounded by a composite yarn guide device to form composite yarns, and the composite yarns are shaped and then subjected to oiling and winding to obtain the low-elastic composite yarns of the moisture-absorption and sweat-releasing dacron. The low-elastic composite yarns of the dacron has a good moisture absorption and sweat releasing effect, the section profile degree and the strength of fibers are high, and a rich dyeing effect, better elasticity, better appearance and hand feeling can be given to the fabric.

Description

technical field [0001] The invention belongs to the technical field of composite fiber preparation, and in particular relates to a preparation process of moisture-absorbing and sweat-wicking polyester low-elasticity composite yarn. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester fiber is widely used in clothing fabrics and other non-clothing fields because of its excellent physical and chemical properties. However, due to the hydrophobic nature of polyester fibers, applications in fields requiring high hygroscopicity or water absorption are limited. To impart hygroscopicity to hydrophobic polyester fibers, the raw silk modification method of copolymerization or blending with hydrophilic components in the polymerization and spinning stages can be used, and the method of producing special-shaped filaments by special-shaped spinnerets can also be used. The existing polyester fibers with special-shaped cross-sections have low cross-s...

Claims

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Application Information

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IPC IPC(8): D01D5/253D02G1/00D02G1/02D02G1/12
CPCD01D5/253D02G1/004D02G1/0206D02G1/127
Inventor 陶然肖美君付明娟潘勇勇
Owner 苏州萧然新材料有限公司
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