Cotton knitted fabric scouring, bleaching, dyeing and soaping whole-process low temperature dyeing and finishing processing technology

A cotton knitted fabric, low temperature dyeing and finishing technology, applied in the direction of dyeing method, bleached products, plant fibers, etc., can solve the problem of difficult to obtain high temperature processing and so on

Active Publication Date: 2015-04-29
DYMATIC CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through our further research, we found that the design and application of a suitable low-temperature processing process can not only reduce energy consumption, but also reduce pollution discharge, and at the same time make full use of the natural substances on the cotton fiber, thereby obtaining excellent hand feeling, less weight loss and The ideal cloth surface effect, the role of this full-process low-temperature processing cannot be obtained by conventional high-temperature processing; it is difficult to obtain high-temperature processing in the subsequent process only with low-temperature pre-treatment

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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  • Cotton knitted fabric scouring, bleaching, dyeing and soaping whole-process low temperature dyeing and finishing processing technology
  • Cotton knitted fabric scouring, bleaching, dyeing and soaping whole-process low temperature dyeing and finishing processing technology
  • Cotton knitted fabric scouring, bleaching, dyeing and soaping whole-process low temperature dyeing and finishing processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Process flow: low temperature scouring and bleaching → low temperature washing → low temperature dyeing → low temperature soaping

[0044] Low temperature bleaching:

[0045]

[0046] Liquor ratio 1:10, 30°C into the cloth, 2°C / min to 40°C, keep warm for 120min, drain, wash at 40°C for 10min, then wash in cold water.

[0047] Low temperature dyeing:

[0048] Reactive Red 3BS 2.0% (O.W.F)

[0049] Na 2 SO 4 50.0g / L

[0050] Na 2 CO 3 20.0g / L

[0051] Liquor ratio 1:10, 30 ℃ into the cloth, 2 ℃ / min to 60 ℃, heat preservation 60min, drain, cold water washing, neutralization, soaping.

[0052] Low temperature soaping:

[0053] Low temperature soaping agent DM-1542 2.0g / L

[0054] Liquor ratio 1:10, 30 ℃ into the cloth, 2 ℃ / min to 40 ℃, heat preservation 30min, drain, cold water wash.

Embodiment 2

[0056] Process flow: low temperature scouring and bleaching → low temperature washing → low temperature dyeing → low temperature soaping

[0057] Low temperature bleaching:

[0058]

[0059]

[0060] Liquor ratio 1:10, 30°C into the cloth, 2°C / min to 70°C, keep warm for 30 minutes, drain, wash at 70°C for 10 minutes, and wash in cold water.

[0061] Low temperature dyeing:

[0062] Reactive Yellow 3RS 1.5% (O.W.F)

[0063] Na 2 SO 4 50.0g / L

[0064] Na 2 CO 3 20.0g / L

[0065] Liquor ratio 1:10, 30 ℃ into the cloth, 2 ℃ / min to 60 ℃, heat preservation 60min, drain, cold water washing, neutralization, soaping.

[0066] Low temperature soaping:

[0067] Low temperature soaping agent DM-1542 0.2g / L

[0068] Liquor ratio 1:10, 30°C into the cloth, 2°C / min to 70°C, keep warm for 10min, drain, wash with cold water.

Embodiment 3

[0070] Process flow: Enzyme scouring→low temperature scouring and bleaching→low temperature washing water→low temperature dyeing→low temperature soaping

[0071] Low temperature bleaching:

[0072] A>Enzyme refining

[0073] High concentration scouring agent DM-1361 0.2g / L

[0074] Scouring enzyme DM-8654 0.3g / L

[0075] Liquor ratio 1:10, put into cloth at 30°C, heat up to 70°C at 2°C / min, keep warm for 30min, turn to low temperature for scouring and bleaching.

[0076] B>Low temperature bleaching

[0077]

[0078] Liquor ratio 1:10, 30°C into the cloth, 2°C / min to 70°C, keep warm for 30 minutes, drain, wash at 70°C for 10 minutes, and wash in cold water.

[0079] Low temperature dyeing:

[0080] Active Cuilan KN-G 1.6% (O.W.F)

[0081] Na 2 SO 4 50.0g / L

[0082] Na 2 CO 3 20.0g / L

[0083] Liquor ratio 1:10, 30 ℃ into the cloth, 2 ℃ / min to 60 ℃, heat preservation 60min, drain, cold water washing, neutralization, soaping.

[0084] Low temperat...

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 present invention relates to a whole-process low temperature dyeing and finishing process for a cotton knitted fabric during scouring and bleaching, dyeing and soaping, specifically, a whole-process low temperature dyeing and finishing process for cotton fibres with high-retention concomitants, at least comprising the steps of low temperature scouring and bleaching, low temperature washing in water, low temperature dyeing and low temperature soaping. Compared with results obtained through traditional processing, fabrics processed in the invention have comparable strength, dyeing depth and various fastnesses, and at the same time, can save about 45% of energy, reduce weight loss of above 1.0% and COD emissions of above 10%, with the retention rate of the cotton wax reaching above 40%, thus significantly improving the feel of the fabric, and obviously reducing scratches and creases.

Description

technical field [0001] The invention relates to a whole-process low-temperature dyeing and finishing process of scouring, bleaching, dyeing and soaping of cotton knitted fabrics, belonging to the field of fabric dyeing and finishing. Background technique [0002] In the traditional cotton knitting dyeing process, high-temperature scouring and bleaching at 95-100°C is usually carried out first, followed by high-temperature soaping at 90-95°C after dyeing at 60°C, in order to fully remove impurities on cotton fibers and floating colors after dyeing. This process consumes a lot of energy, the fabric loses a lot, the sewage is serious, the handle is rough, the creases and abrasions of the cloth surface are obvious, and there are serious energy consumption and environmental protection problems. [0003] Low-temperature technology is a very important development direction of cotton knitting dyeing and finishing, such as low-temperature scouring and bleaching, low-temperature soapi...

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 Patents(China)
IPC IPC(8): D06L3/02D06P3/66D06M16/00D06M101/06D06L4/00
CPCD06L1/12D06L1/16D06L4/00D06P1/0024D06P1/0032D06P3/60
Inventor 李世琪王深喜赵发宝朱泉
Owner DYMATIC CHEM
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