Preparation method and device of dual different-shrinkage combined filament yarn

A technology of different shrinkage mixed filament yarn and preparation device, which is applied in the field of synthetic fiber manufacturing, can solve the problems of thin and rigid cloth surface, uneven coils, large difference in component shrinkage rate, etc., and achieve the effect of rich layering and fluffy appearance

Inactive Publication Date: 2012-10-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for preparing double different shrinkage mixed fiber yarns, so as to solve the defects of uneven coils and thin and dull cloth surface caused by the large difference in component shrinkage.

Method used

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  • Preparation method and device of dual different-shrinkage combined filament yarn
  • Preparation method and device of dual different-shrinkage combined filament yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation device of double different shrinkage mixed filament:

[0023] Such as figure 2 As shown, it is a schematic diagram of the structure of the device for preparing double different shrinkage mixed filaments. The preparing device for double different shrinkage mixed filaments consists of a first spinning assembly 1, a second spinning assembly 4, a lower guide plate 2, and an upper Godet 2', first heat roller 7, second heat roller 7', first diverter 3, third heat roller 5, fourth heat roller 5', second diverter 6, doubling device 8, network The yarn spun from the first spinning assembly 1 passes through the lower godet 2, the upper godet 2', and the first diverter 3, and then enters the yarn doubling device 8. A part of the filaments spun by the component 4 passes through the first heat roller 7 and the second heat roller 7'in turn, and then enters the yarn doubling device 8. The other part of the filaments spun by the second spinning assembly 4 passes through the ...

Embodiment 2

[0025] Preparation of polypropylene double different shrinkage mixed filament:

[0026] Raw material: polypropylene chips (melt index is 36g / 10 min, melting point is 170℃);

[0027] Equipment: the same as the preparation device of double different shrinkage mixed filament described in Example 1;

[0028] Preparation method: After the polypropylene melt is ejected through the first spinning assembly 1, it passes through the lower godet 2 with a speed of 3500m / min, the upper godet 2'with a speed of 3500m / min and the first diverter 3 , Form pre-oriented yarn, boiling water shrinkage rate is 55%. After the polypropylene melt is ejected from the second spinning assembly 4, it is divided into two filaments: one filament passes through the first heat roller 7 with a temperature of 60°C and a speed of 1000m / min and a temperature of 60°C and a speed in turn. The second hot roller 7'with a temperature of 3500m / min forms the first fully drawn yarn; another bundle of filaments passes through t...

Embodiment 3

[0030] Preparation of polyamide 66 double different shrinkage mixed filament yarn:

[0031] Raw material: polyamide 66 chips (relative viscosity 52, melting point 250°C);

[0032] Equipment: the same as the preparation device of double different shrinkage mixed filament described in Example 1;

[0033] Preparation method: After the polyamide 66 melt is ejected through the first spinning assembly 1, it passes through the lower godet 2 with a speed of 4200m / min, the upper godet 2'and the first diverter 3 with a speed of 4200m / min, The pre-oriented yarn is formed, and the boiling water shrinkage rate is 60%. After the polyamide 66 melt is ejected through the second spinning assembly 4, it is divided into two filaments: one filament passes through the first heat roller 7 with a temperature of 80°C and a speed of 1000m / min and a temperature of 60°C. The second heat roller 7'with a speed of 4200m / min forms the first fully drawn filament; another bundle of filaments sequentially passes th...

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Abstract

The invention relates to a preparation method and device of dual different-shrinkage combined filament yarn. The device comprises a first spinning component, a second spinning component, a lower spinning reel, an upper spinning reel, a first hot roll, a second hot roll, a first redirector, a doubling machine, a netting device and a winding roll, and is characterized by also comprising a third hotroll, a fourth hot roll and a second redirector. The preparation method is characterized in that one part of yarn output by the second spinning component is input to the doubling machine through the first hot roll and the second hot roll; the other part of yarn output by the second spinning component is input to the doubling machine through the third hot roll, fourth hot roll and second redirector; and after the doubling machine merges all the input yarn, the yarn is processed by the netting device and the winding roll, thereby finally obtaining the dual different-shrinkage combined filament yarn. The looped piles formed on the surface of the dual different-shrinkage combined filament yarn are more stratified; and the loops with different sizes are tangled, so that the combined filament yarn looks fluffier, and the formed fabric is plumper and has stereo perception.

Description

technical field [0001] The invention relates to a method and a device for preparing double different shrinkage mixed fiber yarns, and belongs to the technical field of synthetic fiber manufacturing. Background technique [0002] Pre-oriented yarn (POY) / fully drawn yarn (FDY) different shrinkage mixed fiber is a kind of different shrinkage mixed fiber formed by compounding pre-oriented filament and fully drawn filament with different shrinkage ratios. The prior art is only limited to the production of mixed fiber filaments with two types of thermal shrinkage filaments, and the cloth surface effect is thin and dull. [0003] like figure 1 As shown, it is a traditional pre-oriented yarn / full-drawn yarn different shrinkage mixed fiber preparation device, including the first spinning assembly 1, the second spinning assembly 4, the lower godet 2, and the upper godet 2', The first heat roll 7, the second heat roll 7', the first diverter 3, the doubling device 8, the network devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01D5/16D01D10/02D01D13/00
Inventor 俞建勇谢倩王学利黄莉茜
Owner DONGHUA UNIV
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