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PLA (polylactic acid)/PHBV (polyhydroxy butyrate valerate) blending silk/viscose mixed fabric one-bath dyeing process

An interwoven and blending technology, applied in the field of disperse/reactive dyes one-bath dyeing process, can solve the problems of little research, low production efficiency, reduced fiber strength, etc., to reduce fiber damage, production cost, friction, etc. Good fastness effect

Active Publication Date: 2019-07-12
ZHEJIANG TEXTILE & FASHION COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole dyeing process takes a long time, low production efficiency, large consumption of water, electricity and steam, and large sewage discharge. At the same time, due to high temperature, wet state and long alkaline processing time, it is easy to reduce the strength of the fiber and affect the feel of the fabric (especially PLA / PHBV blending Silk), the quality of products and the economic benefits of enterprises have declined
Therefore, it is necessary to develop a one-bath dyeing process of PLA / PHBV blended silk / viscose interlaced fabrics, but there are not many studies on the one-bath dyeing of PLA / PHBV blended silk / viscose interlaced fabrics, which makes this research has a certain necessity

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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  • PLA (polylactic acid)/PHBV (polyhydroxy butyrate valerate) blending silk/viscose mixed fabric one-bath dyeing process
  • PLA (polylactic acid)/PHBV (polyhydroxy butyrate valerate) blending silk/viscose mixed fabric one-bath dyeing process
  • PLA (polylactic acid)/PHBV (polyhydroxy butyrate valerate) blending silk/viscose mixed fabric one-bath dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Dyeing process of PLA / PHBV blended fabric with disperse dyes

[0027]

[0028]

[0029] PLA / PHBV blended fabric disperse dyeing without carrier dyeing comparative example 1, the amount of carrier in the process is 0g / L, the dyeing temperature is 100°C, other processes are the same as in Example 1

[0030] Table 1 The staining results of this example

[0031]

[0032] The K / S value indicates the color depth of the dyed fabric. At the same wavelength, the larger the K / S value, the darker the color of the fabric. In temperature dyeing, the dyeing depth of the carrier is deeper than that of the non-carrier; the color of the fabric is darker when the carrier is dyed at 80 ℃ than without the carrier at 100 ℃, which shows that the carrier can reduce the dyeing temperature and increase the color yield. From the test data in Table 1 above, it can be seen that the effect of low-temperature dyeing with carrier is better than that of the comparative example.

Embodiment 2

[0034] Dyeing process of PLA / PHBV blended silk / viscose interwoven fabric with disperse reactive dyes in light color

[0035]

[0036] Soaping process:

[0037] Polyester cotton one-bath cleaning agent 2g / L

[0038] Bath ratio 1:30

[0039] Temperature 80°C

[0040] Time 10min

Embodiment 3

[0062] Dyeing process of PLA / PHBV blended silk / viscose interlaced fabric with disperse reactive dyes

[0063]

[0064] Post-processing process:

[0065] Polyester cotton one-bath cleaning agent 4g / L

[0066] Temperature 80°C

[0067] Time 20min

[0068] Bath ratio 1:30

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 invention provides a PLA (polylactic acid) / PHBV (polyhydroxy butyrate valerate) blending silk / viscose mixed fabric one-bath dyeing process which includes the steps: placing a desized and oil removed mixed fabric into a dyeing liquor containing disperse dyes and activated dyes; adding a carrier to perform low-temperature dyeing; cleaning the mixed fabric. The process has the advantages that bythe aid of the environment-friendly carrier, dyeing temperature of the disperse dyes can be reduced to 80 DEG C, damage of high temperature to PLA / PHBV blending silks is avoided, alkali resistant disperse dyes and reactive low-alkali dyes are selected and used, so that dispersing activity one-bath dyeing is achieved, dyeing and color light of the disperse dyes cannot be affected, color fixing of the reactive dyes cannot be affected, PLA / PHBV blending silk / viscose mixed fabric dyeing dyes and additives are determined, the provided dispersing activity one-bath dyeing process has the advantages of uniform obtained color and good washing fastness and rubbing fastness, energy can be saved, production cost is reduced, damage to fabrics is decreased, and discharge of sewage can be decreased.

Description

technical field [0001] The invention relates to a fabric dyeing process, in particular to a one-bath dyeing process of PLA / PHBV blended silk / viscose interwoven fabric using disperse / reactive dyes. Background technique [0002] Traditional synthetic polyester fiber production is derived from petroleum, its resources are non-renewable, and waste is difficult to biodegrade. With the continuous strengthening of people's awareness of environmental protection, biodegradable bio-based polyester fiber PLA / PHBV blended fibers have gradually developed, both of which are degradable fibers. However, its poor heat resistance and alkali resistance make the mechanical properties and hand feel of the fiber greatly affected after it has been processed (spinning, dyeing, ironing, etc.), so PLA / PHBV blended silk / Viscose interlaced fabric to improve its feel and mechanical properties. PLA / PHBV blended silk is dyed with disperse dyes, and viscose is dyed with reactive dyes; traditional disper...

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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IPC IPC(8): D06P1/16D06P1/38D06P1/673D06P3/872
CPCD06P1/16D06P1/38D06P1/6735D06P3/8252
Inventor 王华清
Owner ZHEJIANG TEXTILE & FASHION COLLEGE
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