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Method for dyeing polylactic acid fiber fabrics with disperse dye under low temperature

A polylactic acid fiber and disperse dye technology, applied in the field of fabric dyeing, can solve the problems of increased loss of fiber physical and mechanical properties, and achieve the effect of low loss of physical and mechanical properties

Inactive Publication Date: 2010-07-07
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at this temperature, it will inevitably lead to an increase in the loss of fiber physical and mechanical properties. Therefore, it is of great practical significance to seek a dyeing process at low temperature for the application of polylactic acid fibers.

Method used

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  • Method for dyeing polylactic acid fiber fabrics with disperse dye under low temperature
  • Method for dyeing polylactic acid fiber fabrics with disperse dye under low temperature
  • Method for dyeing polylactic acid fiber fabrics with disperse dye under low temperature

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Embodiment Construction

[0037] combine figure 1 As shown, the method for low-temperature dyeing of polylactic acid fiber fabrics with disperse dyes of the present invention comprises the following steps: according to the weight of the polylactic acid fiber fabrics dyed and the bath ratio of 10-20: 1, a certain amount of water is injected through calculation, and the Disperse dyes with good chemical materials, 1-2g / l dispersant, 1g / l ammonium sulfate, and then put them into the fabric to start running and wetting. After 5 minutes, add 10ml / l of special additives to raise the temperature at 1-2°C / min to 90°C, keep warm for 40-50 minutes, then cool down to 80°C at 3°C / min, drain and heat to 90°C, soap at a bath ratio of 1:10-20 for 10 minutes.

[0038] Dyeing Process Prescription:

[0039] Disperse dyes 0.5-4% (owf)

[0040] Special additive 10ml / l

[0041] Dispersant 1-2g / l

[0042] Ammonium sulfate 1g / l

[0043] Bath ratio 10-20:1

[0044] Soaping process prescription:

[0045] Soaping agent 1-...

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Abstract

The invention discloses a method for dyeing polylactic acid fiber fabrics with disperse dye under low temperature, which belongs to the technical field of dyeing. The method includes the following steps that: after water is added according to the weight of a polylactic acid fiber fabric and the bath ratio of 10 to 20:1, the melted disperse dye, 1g / l to 2g / l of dispersing agent and 1g / l of ammonium sulphate are sequentially added, the fabric is put in and starts to be wetted, 10ml / l of special additive is then added after 5 minutes, the temperature is increased to 90 DEG C at 1 DEG C to 2 DEG C / min, and is kept for 40 to 50 minutes, the temperature is then increased to 80 DEG C at 3 DEG C / min, and the fabric is heated to 90 DEG C after the water is drained, and is soaped for 10 minutes under the bath ratio of 1:10 to 20. While achieving a good dyeing effect, the invention can reduce the loss of the physical and mechanical properties of polylactic acid fibers to the max.

Description

technical field [0001] The invention relates to a low-temperature dyeing method of polylactic acid fiber fabric with disperse dyes, belonging to the technical field of fabric dyeing. technical background [0002] Polylactic acid fiber (PLA fiber) is a new generation of environmentally friendly polyester synthetic fiber. It is made of starch such as corn and wheat, which is fermented into lactic acid, and then polymerized and melt-spun. It has superior performance and has a good Biodegradability and biocompatibility. With the development of the economy, people's awareness of environmental protection has increased. Polylactic acid fiber made of renewable resources has become an environmentally friendly new material and new fiber that people are committed to developing to solve the plight of petrochemical resources and environmental impact due to its biodegradability and good wearability. The polylactic acid used for polylactic acid fiber spinning is mainly obtained by the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/60D06P1/64D06P1/62D06P3/54
Inventor 钱红飞
Owner SHAOXING UNIVERSITY
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