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Pretreatment method combining biological enzyme with chemical degumming for rough linen yarn

A chemical degumming and pretreatment technology, which is applied in the production process of the textile industry and the textile field, can solve the problems of violating the scientific development concept of green development, numerous processes, and poor uniformity of linen yarn, so as to achieve low requirements for personal protection and improve the operating environment , enhance the removal effect

Inactive Publication Date: 2017-12-22
JIANGSU LIANFA TEXTILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. In the pickling process, a part of the cellulose undergoes structural changes under the action of acid, causing damage to the cellulose and reducing the degree of polymerization of the fiber; the yarn strength will decrease significantly, resulting in poor spinnability of flax, and the spun flax yarn Evenness is poor, strength is low, and it is difficult to spin high-count spun yarns, so high-grade linen fabrics cannot be produced
[0006] 2. The degumming degree of chemical degumming method is difficult to precisely control the content of pectin, and the removal effect of lignin is poor. Performance can take a toll
[0007] 3. Chlorine dioxide produced by sodium chlorite bleaching is harmful to the human body. Chlorine bleaching waste liquid contains highly toxic substances, making wastewater treatment more difficult
[0008] 4. The COD value of sewage discharged by chemical degumming method is high, which is very serious to environmental pollution
[0009] 5. There are many processes, large water consumption and high energy consumption, resulting in energy consumption, which violates the scientific development concept of green development

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Treat flax roving with compound enzyme solution, liquor ratio: 1:10, and treat at 20±2°C for 10 hours.

[0044] H in compound enzyme solution 2 SO 4 Content 0.4g / L, H 2 o 2 The content is 1mL / L, the content of crude enzyme solution is 2g / L, the content of deoxygenase is 2g / L, and the rest is water.

[0045] 2. Scouring the pretreated flax roving, the bath ratio: 1:10, the treatment temperature is 98°C, and the treatment time is 3 hours.

[0046] The content of NaOH in the scouring agent is 5g / L, the content of dispersant additives is 4g / L, the content of emulsifier is 1g / L, and the rest is water;

[0047] 3. Bleaching the scouring roving, the liquor ratio is 1:10, the treatment temperature is 98°C, and the treatment time is 60 minutes.

[0048] The NaOH content in the bleaching agent is 15g / L; H 2 o 2 The content is 10mL / L; the content of dispersing degumming agent is 2g / L; the content of natron is 2g / L; the content of emulsifier is 0.5g / L;

[0049] 4. Cleani...

Embodiment 2

[0051] 1. Treat flax roving with compound enzyme solution, liquor ratio: 1:10, and treat at 20±2°C for 10 hours.

[0052] H in compound enzyme solution 2 SO 4 The dosage is 0.4g / L; H 2 o 2 The dosage is 1mL / L; the dosage of crude enzyme solution is 1g / L; the dosage of deoxygenase is 3g / L, and the rest is water.

[0053] 2. Scouring the pretreated flax roving, the bath ratio: 1:10, the treatment temperature is 98°C, and the treatment time is 3 hours.

[0054] The content of NaOH in the scouring agent is 5g / L, the content of dispersant additives is 4g / L, the content of emulsifier is 1g / L, and the rest is water.

[0055] 3. Bleaching the scouring roving, the liquor ratio is 1:10, the treatment temperature is 98°C, and the treatment time is 60 minutes.

[0056] The NaOH content in the bleach is 15g / L, the H 2 o 2 The content is 10mL / L, the content of dispersing degumming agent is 2g / L, the content of natron is 2g / L, the content of emulsifier is 0.5g / L, the content of sodium...

Embodiment 3

[0059] 1. Treat flax roving with compound enzyme solution, liquor ratio: 1:10, and treat at 20±2°C for 10 hours.

[0060] H in compound enzyme solution 2 SO 4 The dosage is 0.4g / L, H 2 o 2 The dosage is 1mL / L, the dosage of crude enzyme solution is 3g / L, the dosage of deoxygenase is 3g / L, and the rest is water.

[0061] 2. Scouring the pretreated flax roving, the bath ratio: 1:10, the treatment temperature is 98°C, and the treatment time is 3 hours.

[0062] The content of NaOH in the scouring agent is 5g / L, the content of dispersant additives is 4g / L, the content of emulsifier is 1g / L, and the rest is water.

[0063] 3. Bleaching the scouring roving, the liquor ratio is 1:10, the treatment temperature is 98°C, and the treatment time is 60 minutes.

[0064] The NaOH content in the bleach is 15g / L, the H 2 o 2 The content is 10mL / L, the content of dispersing degumming agent is 2g / L, the content of natron is 2g / L, the content of emulsifier is 0.5g / L, the content of sodium...

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Abstract

The invention provides a pretreatment method combining biological enzyme with chemical degumming for rough linen yarn, and belongs to the technical field of textile industry production. The rough linen yarn is treated by using a crude enzyme liquid, under the synergistic action of enzymes in the crude enzyme liquid and with addition of hydrogen peroxide and catalase, the removal effect of lignin and hemicellulose in the rough linen yarn is enhanced, a proper amount of pectin is reserved, the splitting degree of fibers is increased, and spinnability of the linen process fibers, quality of the spun yarn and spinnability of high-count yarn are further improved. Besides, decolorization of the rough linen yarn can be effectively realized in a bleaching process of hydrogen peroxide, whiteness is ensured, and the impurity removal effect is also enhanced. With adoption of the process, damage to the linen fibers and environmental pollution can be reduced to the greatest extent, and clean processing is realized.

Description

technical field [0001] The invention belongs to the technical field of textile industry production technology, and belongs to the technical field of textiles. More specifically, the present invention relates to a pretreatment process combining biological enzyme and chemical degumming of flax roving. Background technique [0002] Linen is an important high-quality natural fiber with many excellent eating properties. In addition to the main component cellulose (71.58%), flax roving also contains a large amount of cellulose such as hemicellulose (16.49%), lignin (5.25%), pectin (5.30%) and lipid wax (1.37%). Companion. The existence of these cellulose companions will affect the spinnability of the subsequent spun flax yarn, the quality of the spun yarn and the high-count yarn, on the other hand, it will affect the physical and mechanical properties, dyeing performance and quality of the spun spun yarn. Take performance. Therefore, flax roving needs to be processed before sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00D06M11/38D06M13/256D06M13/262D06L4/12D06L4/13D06M101/06
CPCD06M11/38D06M13/256D06M13/262D06M16/003D06M2101/06D06L4/12D06L4/13
Inventor 于拥军范雪荣唐文君王强姚金龙苏江玥向中林孙月玲杨正华
Owner JIANGSU LIANFA TEXTILE
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