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Multi-color polyester slub fully drawn yarns (FDYs) produced by heat roller at variable speed and production method thereof

A technology of full-drawn yarn and production method, which is applied in stretch spinning, filament/thread forming, textiles and papermaking, etc. It can solve the problems of lack of wearing comfort, poor air permeability and low differentiation of polyester fabrics, and achieve Significant economic and social benefits, simple equipment modification, good waterproof and breathable effect

Inactive Publication Date: 2011-10-05
张守运
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

China has become the largest production and demand country for polyester chemical fiber, but the product differentiation is very low, and product upgrades are urgently needed to improve product performance. At the same time, polyester fabrics have poor moisture permeability and lack of wearing comfort.

Method used

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  • Multi-color polyester slub fully drawn yarns (FDYs) produced by heat roller at variable speed and production method thereof
  • Multi-color polyester slub fully drawn yarns (FDYs) produced by heat roller at variable speed and production method thereof
  • Multi-color polyester slub fully drawn yarns (FDYs) produced by heat roller at variable speed and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Manufacture of polyester multi-color slub full-drawn yarn FDY produced by heat roller variable speed:

[0024] Change the internal control constant speed working mode of the frequency converter that controls the motor of the second heat roller (4), adopt the multi-stage speed change external control mode to work, and control the second heat roller (4) according to the setting by the connected programmable controller (6). The program operates at different speeds, so that the stretching ratio of the filament formed by the speed difference between the first hot roller (3) and the second hot roller (4) changes accordingly.

[0025] One hot roller V=1100m / min, two hot rollers with multi-stage speed: v1=1760m / min, drawing ratio DR1=1.6; v2=2750m / min, drawing ratio DR2=2.5; v3=3600m / min, drawing ratio DR3=3.2; corresponding stretching time: t1=1ms, t2=1ms, t3=1ms, and the acceleration time is 0.01 second. The obtained slub length is 6cm, the spacing is also 38cm, 53cm, 45cm, ...

Embodiment 2

[0027] Manufacture of polyester multi-color slub full-drawn yarn FDY produced by heat roller variable speed:

[0028] Change the internal control constant-speed working mode of the frequency converter that controls the motor of the second heat roller (4), adopt the multi-stage speed change external control mode to work, and control the second heat roller (4) according to the setting by the connected programmable controller (6). The program operates at different speeds, so that the stretching ratio of the filament formed by the speed difference between the first hot roller (3) and the second hot roller (4) changes accordingly.

[0029] One hot roller V=1800m / min, two hot rollers with multi-stage speed: v1=4200m / min, drawing ratio DR1=2.3; v2=2350m / min, drawing ratio DR2=1.79; v3=2350m / min, drawing ratio DR3=1.79; corresponding stretching time: t1=10ms, t2=5ms, t3=4ms, and the acceleration time is 0.05 seconds. The obtained slub lengths are 70cm, 20cm, 20cm, the spacing is also...

Embodiment 3

[0031] Manufacture of polyester multi-color slub full-drawn yarn FDY produced by heat roller variable speed:

[0032] Change the internal control constant-speed working mode of the frequency converter that controls the motor of the second heat roller (4), adopt the multi-stage speed change external control mode to work, and control the second heat roller (4) according to the setting by the connected programmable controller (6). The program operates at different speeds, so that the stretching ratio of the filament formed by the speed difference between the first hot roller (3) and the second hot roller (4) changes accordingly.

[0033] One hot roller V=1500m / min, two hot rollers with multi-stage speed: v1=3900m / min, draw ratio DR1=2.6; v2=1770m / min, draw ratio DR2=2.2; v3=1950m / min, draw ratio DR3=2.0; corresponding stretching time: t1=3ms, t2=7ms, t3=4ms, t4=6ms, and the acceleration time is 0.03 seconds. The obtained slub length is 20cm, 21cm, 20cm, the spacing is 273cm, 196...

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Abstract

The invention relates to the technical field of polyester chemical fiber filaments for spinning, in particular to multi-color polyester slub fully drawn yarns (FDYs) produced by a heat roller at a variable speed and a production method thereof. The invention is characterized in that: the polyester slub FDYs are slub-like filament strips with alternate coarse and fine filament segments along the axial direction and are provided with one or more different coarse and fine fiber segments, wherein the coarse fiber segments are subjected to heat-moisture treatment to form apparent fine and hard slub segments, but precursor strip fine segments become apparent coarse fiber segments. Compared with the prior art, the invention has the advantages that: equipment is simply modified, and the filament strips are provided with fluffy fiber segments and fine, hard and smooth slub segments, so the produced polyester multi-color slub FDY filaments are woven into a high-density fabric with high water resistance and air permeability, color patterns with different chroma can be dyed by one dye, and obvious economic benefits and social benefits are achieved.

Description

[technical field] [0001] The invention relates to the technical field of polyester chemical fiber filaments for textiles, in particular to a multi-color polyester slub full-drawn yarn produced by variable-speed heating rollers and a production method thereof. [Background technique] [0002] Polyester is a kind of chemical fiber clothing fabric raw material that is widely used in daily life. The biggest advantage of its fabric is that it has good wrinkle resistance and shape retention, and is suitable for making outerwear, and the dosage is very large. China has become the largest production and demand country for polyester chemical fiber, but the product differentiation is very low, and product upgrades are urgently needed to improve product performance. At the same time, polyester fabrics have poor moisture permeability and lack of wearing comfort. The improvement of textile chemical fiber production and automation control technology and the improvement of people's living ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01D5/16D01D5/20
Inventor 张守运
Owner 张守运
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