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Cotton fiber continuously-dyeing method

A dyeing method and cotton fiber technology, which is applied in the field of fiber dyeing, can solve the problems of low production efficiency, low strength of dyed cotton, and poor spinnability, etc., and achieve the effects of small decrease in specific strength at break, improvement of spinnability, and reduction of strength loss

Inactive Publication Date: 2018-01-19
SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a continuous dyeing method for cotton fibers to solve the problems of low strength, poor spinnability, low intermittent production efficiency and color difference of dyed cotton at present, while meeting the requirements of Environmental protection requirements for energy saving and emission reduction

Method used

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  • Cotton fiber continuously-dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of combed sliver

[0039] The untreated raw cotton loose fibers are opened 4 times by the blowing and carding machine, and then combed to prepare combed cotton slivers;

[0040] (2) Dyeing

[0041] Inject the prepared dye solution into the liquid-sealed gap of the rollers of the horizontal padder, then dip the combed cotton sliver prepared in step (1) into the dye solution and place it at 30°C for 12 hours. The combed cotton sliver has a liquid rate of 85%. %.

[0042] Wherein said dye liquor is made up of 30g / L monovinyl sulfone active red, 3g / L monovinyl sulfone active orange, 10g / L monovinyl sulfone active blue, 23g / L Serapol LR-01, 5g / L homogeneous The dye is mixed evenly;

[0043] (3) Washing

[0044] Put the cotton slivers that have been piled up for 12 hours in step (2) in an industrial elution machine, and wash them with water according to the following procedure: 5 minutes in cold water at 25°C, 3 minutes in hot water at 90°C, and 5 minutes ...

Embodiment 2

[0047] (1) Preparation of combed sliver

[0048] Combed cotton slivers are prepared by combing the untreated raw cotton loose fibers through the blowing and carding machine for 5 times;

[0049] (2) Dyeing

[0050] Inject the prepared dye solution into the liquid-sealed gap of the rollers of the horizontal padder, then dip the combed cotton sliver prepared in step (1) into the dye solution and stack it at 30°C for 10 hours, and the combed cotton sliver liquid rate is 90%. %;

[0051] Among them, the dye solution is 40g / L monovinyl sulfone reactive red, 11g / L monovinyl sulfone reactive orange, 3g / L monovinyl sulfone reactive blue, 23g / L Serapol LR-01, 5g / L leveling agent mixed Uniform;

[0052] (3) Washing

[0053] Put the cotton slivers that have been piled up for 10 hours in step (2) in an industrial elution machine, and wash them with water according to the following procedure: 5 minutes in cold water at 25°C, 3 minutes in hot water at 90°C, and 5 minutes in cold water a...

Embodiment 3

[0056] (1) Preparation of combed sliver

[0057]Combed cotton slivers were prepared by combing untreated raw cotton loose fibers through a blowing-carding machine for 4 times and then combing.

[0058] (2) Dyeing

[0059] Inject the prepared dye solution into the liquid-sealed gap of the rollers of the horizontal padder, then dip the combed cotton sliver prepared in step (1) into the dye solution and place it at 30°C for 18 hours, and the combed cotton sliver has a liquid rate of 95%. %;

[0060] The monovinyl sulfone reactive red of the dye solution 60g / L, the monovinyl sulfone reactive orange of 16g / L, the monovinyl sulfone reactive blue of 5g / L, 23g / L color fast LR-01, 5g / L level dyeing The agent is mixed evenly.

[0061] (3) Washing

[0062] Put the cotton slivers that have been piled up for 18 hours in step (2) in an industrial elution machine, and wash them with water according to the following procedure: 5 minutes in cold water at 25°C, 3 minutes in hot water at 90°...

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Abstract

The invention discloses a cotton fiber continuously-dyeing method. The method comprises the following steps: (1) preparing combed sliver; (2) dyeing; (3) washing with water. The dyed cotton fiber prepared through the method is higher than a standard value in main body length and breaking specific strength. According to the method, on one hand, a proper dyeing material and a proper low temperaturecondition are selected in order to lower the strength loss of the cotton fiber after being dyed, and improve the spinning property of dyed cotton, so that the breaking specific strength of the dyed cotton is lowered; meanwhile, in the technical scheme, the liquid rate of the combed sliver is 70 to 100 percent, in the dyeing process of the cotton sliver, water consumption is low; dyeing liquid is free from salt, so that salt content in waste water is low in a discharging process; on the other hand, in the dyeing process, the combed cotton sliver is soaked in the dye liquid, and is piled at thetemperature of 20 to 35 DEG C, so that energy consumption is low, and environment requirement on energy saving and emission reduction is met.

Description

technical field [0001] The invention relates to the technical field of fiber dyeing, in particular to a continuous dyeing method for cotton fibers. Background technique [0002] The products made of colored spun yarn meet people's demand for fashion, personalization and high-end, and are deeply loved by consumers at all levels. Color spinning is a new spinning method separated from the traditional textile industry, and bulk fiber dyeing is the first process of color spinning, which subverts the order of textile printing and dyeing: first dye the raw materials, and then for spinning. Among them, cotton fiber is an important textile industry raw material, which is widely used because of its good properties such as strong hygroscopicity, good softness, good air permeability and wear resistance. [0003] The traditional cotton fiber dyeing process needs to first scouring the cotton loose fiber to remove natural impurities and improve the water absorption of the cotton fiber, a...

Claims

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Application Information

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IPC IPC(8): D06P3/66D06P1/38D06P1/44D06P5/02
Inventor 房宽峻陈凯玲贾吉敏高志超路晖伍丽丽
Owner SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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