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Elastic yarn and dyeing method thereof

A dyeing method and elastic yarn technology, applied in the field of yarn processing, can solve problems such as long production process, ineffective monitoring of density, unsatisfactory quality problems, etc., achieve short production cycle, improve winding efficiency, and good color reproduction sexual effect

Active Publication Date: 2018-05-29
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process of this method is long, and the density after drying cannot be effectively monitored. Although the quality problems are reduced, it is not ideal.

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

[0048] In this embodiment, a method for dyeing elastic yarns, CF50s / 1+XLA 42D elastic yarns are selected and dyed in a dye vat with a diameter of 1400mm. The specific steps of the dyeing method are as follows:

[0049] Step 1) the loose tube process prepares a plastic non-porous bobbin (loose tube) whose outer diameter is 120mm;

[0050] Step 2) Loose tube process Wrap a transfer layer of polyester material on a 120mm plastic non-porous bobbin (in the shape of a tube with two ends open);

[0051] Step 3) Elastic yarn is loosened on the machine table of the plastic non-porous bobbin of 120mm with the outer diameter of the transfer layer;

[0052] Step 4) After the weight of the loose tube reaches 0.6kg, the machine stops loosening the tube, and the density of the loose tube is 0.28g / cm 3 ;

[0053] Step 5) Manually turn the transfer layer on the plastic non-porous bobbin from inside to outside, and wrap the elastic yarn of the outer layer; then manually transfer the elastic ...

Embodiment 2

[0062] The dyeing method of a kind of elastic yarn of present embodiment, the raw material that adopts and dyeing method are similar to embodiment 1, and main difference is:

[0063] Step 4) The density of the loose tube after the middle loose tube is 0.2g / cm 3 ;

[0064] Density after transfer in step 5) is 0.13g / cm 3 ;

[0065] Step 8) Dyeing: add water, dyes and sodium sulfate, keep warm at 50°C for 1min, then raise the temperature to 70°C at a heating rate of 1°C / min, keep warm for 30min, then add soda ash, keep warm for 40min and then drain.

Embodiment 3

[0067] The dyeing method of a kind of elastic yarn of present embodiment, the raw material that adopts and dyeing method are similar to embodiment 1, and main difference is:

[0068] Step 4) The density of the loose tube after the middle loose tube is 0.4g / cm 3 ;

[0069] Density after transfer in step 5) is 0.26g / cm 3 ;

[0070] Step 8) Dyeing: add water, dyes and sodium sulfate, keep warm at 45°C for 30 minutes, then raise the temperature to 85°C at a heating rate of 0.5°C / min, keep warm for 5 minutes, then add soda ash, keep warm for 20 minutes, and drain.

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Abstract

The invention relates to an elastic yarn and a dyeing method thereof. The dyeing method comprises the following steps of acquiring the elastic yarn, and performing drum loosening, dyeing and post-procedure treatment on the elastic yarn, wherein in the step of drum loosening, a drum loosening bobbin is adopted to perform drum loosening on the elastic yarn, and the drum loosening density is 0.2-0.4g / cm<3>; and in the step of dyeing, the elastic yarn after the drum loosening procedure is transferred to a dyeing bobbin, and then the dyeing bobbin is put in dyeing equipment for dyeing, wherein theoutside diameter of the dyeing bobbin is smaller than the outside diameter of the drum loosening bobbin. A dyeing process comprises the following steps of adding water, dyes and sodium sulfate in thedyeing equipment, and performing heat preservation for 1-30min at the temperature of 45-55 DEG C; then rising the temperature to 60-85 DEG C, and performing heat preservation for 5-30min; and then adding alkali, performing heat preservation for 20-80min. The dyeing method can effectively solve the problem that the elastic yarn shrinks in the dyeing process, improves the dyeing uniformity and is simple in process.

Description

technical field [0001] The present invention relates to yarn processing, in particular to elastic yarn and its dyeing method. Background technique [0002] Elastic fabrics, due to the effect of elasticity, can significantly improve the hand feeling and drapability of fabrics, and improve the comfort and fit of related clothes, so they are very popular among consumers. However, during the dyeing process of elastic yarn, the color is prone to uneven dyeing and impermeable dyeing, which leads to large yarn loss and high production cost. [0003] At present, elastic yarn mainly has the following traditional craft methods: [0004] (1) Cotton dyeing method with pine tube equipment: [0005] Process: pine cone—pretreatment—dyeing—dehydration—drying—winding [0006] Using cotton loose tube equipment, the density of elastic yarn gray yarn is limited, the density is relatively high, and the density of the yarn shrinks during the dyeing process of the package is relatively high, an...

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): D06P1/00D06P1/673D06P1/613D06P3/60D06P3/24D06P3/52D06P5/04
CPCD06P1/00D06P1/6138D06P1/6735D06P3/24D06P3/52D06P3/60D06P5/04
Inventor 杨山山吴海彬何韵湘袁彩妮张伟一安志轩廖良
Owner GUANGDONG ESQUEL TEXTILES CO LTD