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Continuous pad dyeing method and equipment suitable for nylon elastic fabric

A technology of elastic fabrics and pad dyeing, which is applied to the equipment configuration of textile materials, processing of textile materials, textiles and papermaking, etc., can solve the problems of increasing process flow, increasing sewage discharge, increasing production cost, etc., to ensure the effect of color fixing , reduce wastewater discharge, reduce the effect of chicken paw prints

Pending Publication Date: 2021-11-30
杭州鸥蔓服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scouring, bleaching and qualitative process before tie-dyeing increase the process flow, and the high-temperature working environment increases the production cost.
On the other hand, the scouring and bleaching working fluids such as hydrogen peroxide and sodium hydroxide used in scouring and bleaching also increase sewage discharge, which is not conducive to environmental protection

Method used

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  • Continuous pad dyeing method and equipment suitable for nylon elastic fabric
  • Continuous pad dyeing method and equipment suitable for nylon elastic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Dissolve 30kg of neutral black SM dye, 1kg of acetic acid, and 1kg of penetrating agent in 50L of water to make a dye solvent and add it to the trough of the uniform rolling mill. Select 95% nylon and 5% spandex nylon elastic fabric, send it into the uniform rolling mill for padding, and control the liquid retention rate at 100%. Transfer the rolled fabric into the color-fixing box, and set the temperature at 90°C for 2 minutes. After the color fixation is completed, send it to the washing device for washing, and dry it to obtain the finished dyed product.

[0040] Soaping fastness Dry rubbing fastness Wet rubbing fastness Grade 4-5 Grade 4-5 Grade 4-5

[0041] (Testing standard: national standard)

[0042] After testing, the uniform dyeing of the fabric can meet the customer's requirements, and there is no color difference between front and back and left and right. There is no difference in the strength of the fabric after dyeing and gray ...

Embodiment 2

[0044] Dissolve 30kg of weakly acidic Brilliant Blue 7BF, 10kg of weakly acidic red NK, 1kg of acetic acid, and 1kg of penetrating agent in 50L of water to make a dye solvent and add it to the uniform rolling mill trough. Select 90% nylon and 10% spandex nylon elastic fabric, send it into a uniform rolling mill for padding, and control the liquid-carrying rate at 100%. Transfer the rolled fabric into the color-fixing box, and set the temperature at 90°C for 2 minutes. After the color fixation is completed, send it to the washing device for washing, and dry it to obtain the finished dyed product.

[0045] Soaping fastness Dry rubbing fastness Wet rubbing fastness Grade 4-5 Grade 4-5 Grade 4-5

[0046] (Testing standard: national standard)

[0047] After testing, the uniform dyeing of the fabric can meet the customer's requirements, and there is no color difference between front and back and left and right. There is no difference in the strength of ...

Embodiment 3

[0049] Dissolve 10kg of neutral black SM dye, 1kg of acetic acid, and 1kg of penetrating agent in 50L of water to make a dye solvent and add it to the trough of the uniform rolling mill. Select 95% nylon and 5% spandex nylon elastic fabric, send it into the uniform rolling mill for padding, and control the liquid retention rate at 100%. Transfer the rolled fabric into the color-fixing box, and set the temperature at 90°C for 1 min. After the color fixation is completed, send it to the washing device for washing, and dry it to obtain the finished dyed product.

[0050] Soaping fastness Dry rubbing fastness Wet rubbing fastness Grade 4-5 Grade 4-5 Grade 4-5

[0051] (Testing standard: national standard)

[0052] After testing, the uniform dyeing of the fabric can meet the customer's requirements, and there is no color difference between front and back and left and right. There is no difference in the strength of the fabric after dyeing and gray clot...

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Abstract

The invention discloses a continuous pad dyeing method and equipment suitable for nylon elastic fabric, and belongs to the field of fabric dyeing and finishing. The pad dyeing method mainly comprises the following steps that an acidic or neutral dye is padded on cloth through a rolling mill; the padding cloth is subjected to color fixation through a water-insoluble liquid color fixation medium, and a tension sensor controls a driving roller to maintain the tension of the cloth; the cloth is washed, and the tension sensor maintains the tension of the cloth. According to the method, scouring, bleaching and sizing treatment before dip dyeing are not needed, steam color fixing is not needed in a color fixing stage, and the nylon fabric can be dyed efficiently in an energy-saving mode. The tension of the cloth cover is controlled in the whole process, dyeing is uniform, and dyeing defects such as hemming, wrinkles and wicker marks are avoided.

Description

technical field [0001] The invention belongs to the field of fabric dyeing and finishing, in particular to a continuous pad dyeing method and equipment for nylon elastic fabrics. Background technique [0002] Nylon, also known as nylon, is a trade name for synthetic polyamide fibers. Because there are a large number of hydrophilic amide groups in nylon molecules, and the chain ends are amino and carboxyl groups that can be ionized, acid or neutral dyes are generally used for nylon dyeing. However, because of the special nature of nylon molecules, there are fewer amino and carboxyl groups for dyes to form strong ionic bonds, and most dyes can only be combined with amide groups through weak van der Waals forces and hydrogen bonds. Nylon molecules, so after dyeing nylon fabrics need to go through multiple color fixing steps to achieve dyeing. On the other hand, in order to enhance the wear resistance and resilience of nylon fabrics, elastic fibers such as spandex are added to...

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): D06B3/18D06B19/00D06B23/04D06B23/20
CPCD06B3/18D06B19/0005D06B23/04D06B23/20
Inventor 王际平张筱龙程文青吴振华
Owner 杭州鸥蔓服饰有限公司
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