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

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

Inactive Publication Date: 2011-08-03
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
  • Preparation method and device of dual different-shrinkage combined filament yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation device for double different shrinkage mixed fiber yarn:

[0023] Such as figure 2 As shown, it is a schematic structural diagram of a preparation device for double different shrinkage mixed fiber yarns, and the preparation device for double different shrinkage mixed fiber yarns is composed of a first spinning assembly 1, a second spinning assembly 4, a lower godet 2, an upper Godet 2', first heat roll 7, second heat roll 7', first diverter 3, third heat roll 5, fourth heat roll 5', second diverter 6, doubling device 8, network The yarn spun by the first spinning unit 1 passes through the lower godet 2, the upper godet 2', the first diverter 3, and then enters the doubling device 8. The second spinning A part of the filaments spun by the assembly 4 passes through the first heat roller 7 and the second heat roller 7' sequentially and then enters the doubling device 8, and another part of the filaments spun by the second spinning assembly 4 passes through the...

Embodiment 2

[0025] Preparation of polypropylene double different shrinkage mixed fiber yarn:

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

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

[0028] Preparation method: After the polypropylene melt is sprayed 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 , forming pre-oriented filaments, the boiling water shrinkage rate is 55%. After the polypropylene melt is sprayed out by the second spinning assembly 4, it is divided into two bundles of filaments: one bundle of filaments passes through the first hot roller 7 with a temperature of 60°C and a speed of 1000m / min and a temperature of 60°C with a speed of 1000m / min. The second hot roller 7' of 3500m / min forms the first fully drawn filament; anothe...

Embodiment 3

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

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

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

[0033] Preparation method: After the polyamide 66 melt is sprayed out from the first spinning assembly 1, it passes through the lower godet 2 with a speed of 4200m / min, the upper godet 2' with a speed of 4200m / min and the first diverter 3, Pre-oriented filaments are formed, and the boiling water shrinkage rate is 60%. After the polyamide 66 melt is sprayed out by the second spinning assembly 4, it is divided into two bundles of filaments: one bundle of filaments passes through the first hot roller 7 with a temperature of 80°C and a speed of 1000m / min and a temperature of 60°C, The speed is the second hot roller 7' of 4200m / min to form the first fully drawn filament; another bundle...

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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 hot roll, 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 devic...

Claims

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Application Information

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Patent Type & Authority Applications(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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