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Two-bath dyeing technique of PLA-PHBV (polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) blended yarn/Tencel yarn interwoven fabric

A technology of interwoven fabric and Tencel, which is applied in the field of two-bath dyeing process of PLA/PHBV blended silk/tencel interwoven fabric, can solve the problem that there is not much research on PLA/PHBV blended silk/tencel interwoven fabric, etc. Good rubbing fastness, avoid fiber damage, reduce production cost

Active Publication Date: 2019-07-26
ZHEJIANG TEXTILE & FASHION COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing technologies are for the dyeing process of PLA / PHBV blended silk, and there are not many studies on the dyeing of PLA / PHBV blended silk / Tencel interwoven fabric, so it is necessary to develop PLA / PHBV blended silk / Dyeing Technology of Tencel Interwoven Fabric

Method used

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  • Two-bath dyeing technique of PLA-PHBV (polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) blended yarn/Tencel yarn interwoven fabric
  • Two-bath dyeing technique of PLA-PHBV (polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) blended yarn/Tencel yarn interwoven fabric
  • Two-bath dyeing technique of PLA-PHBV (polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) blended yarn/Tencel yarn interwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0027] PLA / PHBV blended fabric 3g

[0028] Disperse Red R-ACE 1% (o.m.f: based on fabric weight)

[0029] Disperse Yellow R-ACE 1% (o.m.f: based on fabric weight)

[0030] Disperse Blue R-ACE 1% (o.m.f: based on fabric weight)

[0031] Glacial acetic acid to adjust pH to 4.5-5.5

[0032] The dosage of environment-friendly carrier is 0.6g / L

[0033] Temperature 80°C

[0034] Time 30min

[0035] Bath ratio 1:30

[0036] PLA / PHBV blended fabric disperse dyeing without carrier dyeing comparative example 1, that is, the amount of carrier in the process is 0g / L, the dyeing temperature is 100°C, and the other processes are the same as in Example 1.

[0037] Table 1 present embodiment and comparative dyeing result

[0038]

[0039] 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, indicating that this group of dy...

Embodiment 2

[0041] Disperse Dyes Dyeing Technology of PLA / PHBV Blended Silk / Tencel Interwoven Fabric in Light Color

[0042] PLA / PHBV / Tencel interwoven fabric 3g (3 sets)

[0043] Dyeing PLA / PHBV with disperse dyes:

[0044] Disperse Red R-ACE 0.5% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0045] Disperse yellow R-ACE 0.5% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0046] Disperse blue R-ACE 0.5% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0047] Glacial acetic acid to adjust pH to 4.5-5.5

[0048] Environmentally friendly carrier 0.4g / L

[0049] Temperature 80°C

[0050] Time 30min

[0051] Bath ratio 1:30

[0052] Reduction cleaning process:

[0053] Hydrosulfite 0.5g / L

[0054] Anhydrous sodium carbonate 0.5g / L

[0055] Temperature 80°C

[0056] Time 10min

[0057] Bath ratio 1:30

[0058] Tencel dyed with reactive dyes:

[0059] Reactive red DH-2G 0.5% (o.m.f...

Embodiment 3

[0077] Dyeing process of PLA / PHBV blended silk / Tencel interwoven fabric with disperse dyes

[0078] PLA / PHBV / Tencel interwoven fabric 3g (3 sets)

[0079] Dyeing PLA / PHBV with disperse dyes:

[0080] Disperse Red R-ACE 1% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0081] Disperse yellow R-ACE 1% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0082] Disperse blue R-ACE 1% (o.m.f: based on the weight of PLA / PHBV blended silk in the interwoven fabric)

[0083] Glacial acetic acid to adjust pH to 4.5-5.5

[0084] Environmentally friendly carrier 0.6g / L

[0085] Temperature 80°C

[0086] Time 40min

[0087] Bath ratio 1:30

[0088] Reduction cleaning process:

[0089] Hydrosulfite 1g / L

[0090] Anhydrous sodium carbonate 1g / L

[0091] Temperature 80°C

[0092] Time 20min

[0093] Bath ratio 1:30

[0094] Tencel dyed with reactive dyes:

[0095] Reactive red DH-2G 1% (o.m.f: based on the weight of ...

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Abstract

The invention provides a two-bath dyeing technique of PLA-PHBV (polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) blended yarn / Tencel yarn interwoven fabric, comprising the main stepsof performing low temperature dyeing on pretreated PLA-PHBV blended yarn / Tencel yarn interwoven fabric through a disperse dyestuff, subjecting the interwoven fabric to reduction washing, and subjecting the interwoven fabric to Tencel yarn overdyeing through an active dyestuff. Compared with the prior art, the two-bath dyeing technique of the invention has the advantages that the temperature of thePLA-PHBV blend yarn dyed with the active dyestuff can be reduced to 80 DEG C, so that damage to fibers due to high heat can be avoided; Tencel yarn can be dyed with the active dyestuff under low alkalinity, and high dyeing depth can be obtained; the dyestuffs and aids for dyeing of the PLA-PHBV blended yarn / Tencel yarn interwoven fabric are determined, the dispersive active two-bath dyeing technique is provided, featuring uniform color, good washing fastness and crocking fastness, energy can be saved, and the production cost can be reduced.

Description

technical field [0001] The invention relates to a dyeing process of PLA / PHBV blended silk / tencel interwoven fabric, which belongs to the dyeing process technology of 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. In recent years, with the continuous strengthening of people's awareness of environmental protection, degradable bio-based polyester fibers have gradually developed. PLA is polylactic acid fiber, and PHBV fiber is a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate, both of which are degradable fibers. The textile fabric blended with two kinds of fibers has the characteristics of rapid degradation, environmental friendliness, good hand feeling and appropriate strength. However, its poor heat resistance and alkali resistance make the mechanical properties and hand feel of the fiber affected after it has been pr...

Claims

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Application Information

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IPC IPC(8): D06P3/54D06P3/66D06P1/16D06P1/38D06P1/673D06L1/12
CPCD06L1/12D06P1/16D06P1/38D06P1/6735D06P3/54D06P3/66
Inventor 王华清
Owner ZHEJIANG TEXTILE & FASHION COLLEGE