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Novel high-count pure cotton hard twisted yarn setting technology

A strong twist yarn, high count technology, applied in liquid/gas/vapor yarn/filament processing, textile and papermaking, fiber processing, etc., can solve the problems of time-consuming, unsatisfactory twist setting, etc. Effect

Inactive Publication Date: 2015-12-16
TIANJIN TEXTILE ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole process usually takes about 3 hours, which is extremely time-consuming
At the same time, in the process, there are often unsatisfactory twist settings, and the warping process, especially the sizing process, has always been a bottleneck problem for this type of product, and it cannot be broken through.

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The pure cotton high-count strong-twist yarn is treated with liquid ammonia. During the liquid ammonia treatment, the yarn feeding method is intermittent, that is, the yarn is fed part by part. The treatment process is: The drying time is 8s, and the drying temperature is increased from 50°C to 120°C, and the temperature is gradually increased. After rising to 120°C, the temperature is kept for 25 minutes, and then the super strong twist of the yarn is stabilized after washing, drying, and baking. The entire liquid ammonia treatment time is less than or equal to 1h. Finally, in a constant temperature and humidity environment with a temperature of (20±2)°C and a relative humidity of (65±2)%, the yarn twist is determined after pre-balancing treatment for 24 hours. In the twist efficiency test, the average twist setting efficiency reaches 52%.

Embodiment 2

[0013] The pure cotton high-count strong-twist yarn is treated with liquid ammonia. The method of feeding the yarn during the liquid ammonia treatment is continuous, that is, the yarn is continuously fed. The treatment process is: the liquid ammonia temperature is -31.8°C, the dipping time is The drying time is 9s, the drying temperature is increased from 50°C to 120°C, and the temperature is gradually increased. After rising to 120°C, the temperature is kept for 30 minutes, and then the super strong twist of the yarn is stabilized after washing, drying, and baking. The liquid ammonia treatment time is less than or equal to 1h. Finally, in a constant temperature and humidity environment with a temperature of (20±2)°C and a relative humidity of (65±2)%, after pre-balancing treatment for 24 hours, the twist of the yarn is fixed. Efficiency test shows that the average twist setting efficiency reaches 53%.

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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Abstract

The invention relates to the field of the spinning technology and provides a novel high-count pure cotton hard twisted yarn setting technology. The technology includes the following steps that high-count pure cotton hard twisted yarn is subjected to liquid ammonia treatment, and the yarn is fed in an intermittent or continuous mode; according to the processing process, the temperature of liquid ammonia is -31.8 DEG C, dipping lasts for 8-9 s, the drying temperature is increased from 50 DEG C to 120 DEG C and is kept for 20-30 min after being gradually increased to 120 DEG C, the ultra-high twist of the yarn is stabilized after washing, drying and roasting, under the constant-temperature constant-humidity environment with the temperature being 20+ / -2 DEG C and the relative humidity being 65+ / -2%, after pre-equilibration treatment is carried out for 24 h, a yarn twist set-twist efficiency test is carried out, and the average set-twist efficiency is 50-55%. The technology has the advantages that by means of a physical processing method, the ultra-high twist of the high-count pure cotton hard twisted yarn is set, the weaving ability of the yarn on a machine is obviously improved, and productivity and product quality are greatly improved.

Description

technical field [0001] The invention belongs to the field of spinning technology, and in particular relates to a novel high-count pure cotton strong-twisted yarn setting technology. Background technique [0002] In recent years, the "wrinkle" craze has swept the domestic and foreign markets, especially the high-count pure cotton wrinkle products are very popular. However, the production process of this type of product is extremely difficult. Pure cotton high-count strong-twisted yarn is extremely difficult in the entire production process, especially the sizing process, and sizing often fails due to the super-twisted twist of the strong-twisted yarn , or the efficiency of the loom is low, which increases the probability of fabric surface defects and affects product performance and style. [0003] The traditional shaping process of pure cotton high-count strong-twisted yarn is usually before setting the shape, firstly carry out a special winding process, wind the bobbin of s...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06B21/00D06B3/09D06B15/00D06M11/61
Inventor 郭爱莲王振声李岷
Owner TIANJIN TEXTILE ENG RES INST
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