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Pure-cotton hard-twist color yarn production method

A production method and technology of dyed yarn, applied in yarn, liquid/gas/steam yarn/filament treatment, heating/cooling fabric, etc., can solve problems such as large internal and external differences of bobbins, many quality problems, and difficult penetration of dyes, etc. Achieve the effects of reducing the color difference inside and outside of dyeing, improving air permeability and cool feeling, and increasing the ultimate twist

Inactive Publication Date: 2015-04-01
LUTAI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, the following problems exist in the strong-twisted dyed yarn: due to the high yarn density, the dye is not easy to penetrate during the dyeing process, resulting in large internal and external deviations of the package yarn, and prone to uneven dyeing
In addition, partial yarn shrinkage due to dyeing is too large, resulting in strong damage, which brings many quality problems to subsequent processing and use.

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

[0008] Embodiment 1: select 20.8 kilograms of twists to be 50 single yarns of 25 twists / inch for use, twist to twist after dyeing and be 53 twists / inches

[0009] ① Dyeing process: Select 20.8 kg of 50 single yarns with a twist of 25 twists / inch, wind the loose yarn on the SSM loose winder, and the density is 0.38g / cm 3 , and then dye the normal package with reactive dyes until drying.

[0010] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.

[0011] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 28 twists / inch. The speed of the twisting machine is 6500 rpm, and the efficiency is 98%.

[0012] ④ Shaping process: steam the twisted dyed yarn on a high-temperature steaming machine at 90°C for 30 minutes. The final dyed yarn twist is 52.8 twists / inch, and the color is grade 4 wi...

Embodiment 2

[0013] Embodiment 2: select 79.77 kilograms of twists to be 60 single yarns of 25 twists / inch for use, twist to twist after dyeing and be 58 twists / inches

[0014] ① Dyeing process: Select 60 single yarns with 79.77 kg of twist and 25 twists / inch, wind loose yarn on SSM loose winder, and the density is 0.381g / cm 3 , Dyeing of normal bobbins with reactive dyes until drying.

[0015] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.

[0016] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 32 twists / inch. The speed of the twisting machine is 6800 rpm, and the efficiency is 98%.

[0017] ④ Shaping process: steam the twisted dyed yarn on a high-temperature steaming machine at 90°C for 30 minutes. The final dyed yarn twist is 57.6 twists / inch, and the color is in the standard 4 / 5 gra...

Embodiment 3

[0018] Embodiment 3: select 52.5 kilograms of twists to be 70 single yarns of 31 twists / inch for use, twist to twist after dyeing and be 68 twists / inches.

[0019] ① Dyeing process: Select 52.5 kg of 70 single yarns with a twist of 31 twist / inch, wind the loose yarn on the SSM loose winder with a density of 0.37g / cm3, and dye the normal bobbin yarn with reactive dyes until drying.

[0020] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.

[0021] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 37 twists / inch. The speed of the twisting machine is 6650 rpm, and the efficiency is 98%.

[0022] ④Sizing process: Steam the twisted dyed yarn on a high-temperature steaming machine at 90°C*30’. The final dyed yarn twist is 68 twists / inch, and the color is grade 4 with the standard.

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Abstract

The invention provides a pure-cotton hard-twist color yarn production method. The pure-cotton hard-twist color yarn production method is characterized in that a technological process sequentially includes normal-twist yarn dyeing, yarn winding, twisting and sizing, wherein cheese yarn dyeing is adopted in a dyeing procedure; in a yarn winding procedure, dyed color yarns are wound on a doubling machine into bobbin yarns used for a twisting machine; in a twisting procedure, the bobbin yarns are twisted on the twisting machine by a 'ZZ' twisting process, and the speed is 6500-6800 revolutions per minute; 90 DEG C*30min high-temperature yarn steaming sizing is adopted in a sizing procedure. The pure-cotton hard-twist color yarn production method has the advantages that a traditional process method for hard-twist color yarns is broken through, the defects of traditional hard-twist color yarns are overcome fundamentally, outside-to-inside color difference of the dyed bobbin yarns can be decreased effectively, weaving efficiency is improved substantially, ultimate twist of the cotton yarns is further increased, and breathability and cool sense of cotton fabric can be improved substantially.

Description

technical field [0001] The invention provides a production method of pure cotton strong-twisted colored yarn, in particular relates to a production process of twisting pure cotton colored yarn to make strong-twisted colored yarn. Background technique [0002] The twist of traditional yarn is generally based on the critical twist coefficient to determine the optimal twist. When the twist coefficient is higher than the critical twist coefficient, the strength will decrease as the twist increases, but as the twist increases, especially when the twist is more than 1.5 times the critical twist coefficient, the cotton fabric will appear similar to linen fabrics: the air permeability increases, and it has obvious cool feeling. Such as the "ice cotton yarn" variety of strong twist yarn popular in the Japanese market. The process of this kind of strong-twisted dyed yarn is as follows: in the spinning process, the twist is increased to the required degree, steamed at 90°C*30’ to set...

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): D02G3/28D06C7/02D06B3/09
CPCD02G3/26D06B3/04
Inventor 王广武徐琳琳马庆霞黄春干阎秋菊孙琳琳
Owner LUTAI TEXTILE
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