CN103436970A - Flax fiber degumming method - Google Patents
Flax fiber degumming method Download PDFInfo
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- CN103436970A CN103436970A CN2013104225692A CN201310422569A CN103436970A CN 103436970 A CN103436970 A CN 103436970A CN 2013104225692 A CN2013104225692 A CN 2013104225692A CN 201310422569 A CN201310422569 A CN 201310422569A CN 103436970 A CN103436970 A CN 103436970A
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Abstract
The invention provides a flax fiber degumming method. The method comprises the following steps: (1) pickling by using sulfuric acid; (2) degumming by using pectinase and xylanase, wherein the pectinase accounts for 1-2% of the flax fiber in mass fraction, and the xylanase accounts for 0.5-2% of the flax fiber in mass fraction; (3) extracting by using caustic soda and calcined soda; (4) bleaching by using hydrogen peroxide. According to the flax fiber degumming method provided by the invention, the pectinase and the xylanase which are free of damage to the flax fiber, free of pollution to the environment and strong in specificity are adopted for sufficiently degumming the flax fiber, so that the division index of the flax fiber can be effectively increased, the uniformity of the flax fiber can be effectively improved; then, commensals of the flax fiber are sufficiently removed through extracting and bleaching, so that the spinning count is increased, the spinning quality is improved, the production cost is reduced, the production difficulty is lowered, and meanwhile, the pollutant discharge is reduced.
Description
Technical field
The invention belongs to the textile raw material process field, be specifically related to a kind of linen fibre Degumming method.
Background technology
In traditional handicraft, the commensal that must remove in linen fibre is processed by a large amount of use alkali and sodium chlorite in process is floated in kiering and Asia, not only produce large amount of sewage, also fiber is had to certain damage, this is to cause polluting and the low key factor of spinning quality.
At present, domesticly for pure flax yarn, by wet spinning process, spinned, before the wet spinning spun yarn, by roving boiling and bleaching, come unstuck, degumming tech commonly used following (each content of material of wherein mentioning is the mass fraction of the relative linen fibre of this material): (1) pickling (H
2sO
4, 3%-5%); (2) kiering (caustic soda 5%+ soda ash 15%); (3) chlorite bleaching (2.5%-4%); (4) oxygen floats (H
2o
2, 2%-3%); (5) upper softener.This technique requires high to spinning equipment, must adopt the bast fibre spinning water that cost is high, popularity is low to spin special equipment, thereby cause production cost high, and difficulty is large, and because a large amount of alkali and sodium chlorites of using cause seriously polluted.
And for flax blended spinning (as flax/cotton, Flax/Viscose etc.) usually adopt dry spinning process to be spinned, owing to before dry-spinning, linen fibre not being done to degumming process, so the low count yarn that can only produce below 10 left and right and 10 are main, and can not spin more than 20 and 20, flax content is at the knitting tatting of 50% left and right handy fine-count yarn all, and also can't escape in follow-up dyeing and finishing process and use a large amount of caustic scourings and sodium hypochlorite bleaching in order to remove the commensal in linen fibre, so still can produce very large pollution problem.
In prior art, also occurred adopting pectase linen fibre to be processed to remove the method for pectin, but the commensal in linen fibre is to follow in the growth course of linen fibre to produce, they present mixed state each other, selectivity due to biology enzyme, use pectase to process and can only remove the part pectin in commensal, still have remaining pectin to remove, degumming effect is poor.In addition, be the selectivity due to biology enzyme equally, pectase does not all have removal effect for other compositions in commensal, and the linen fibre of therefore only processing by pectase degumming can't meet production requirement.
Summary of the invention
The object of the present invention is to provide a kind of linen fibre Degumming method, the method that adopts biochemistry to combine is fully come unstuck to linen fibre, improves spinning count and spinning quality, reduces production costs and difficulty, reduces disposal of pollutants simultaneously.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of linen fibre Degumming method, the method comprises the steps: that (1) use sulfuric acid carries out pickling; (2) use pectase and zytase to be come unstuck, the mass fraction of the relatively described linen fibre of described pectase is 1%-2%, and the mass fraction of the relatively described linen fibre of described zytase is 0.5%-2%; (3) use caustic soda and soda ash to be extracted; (4) use hydrogen peroxide to be bleached.
In described step (2), temperature is 40 ℃-70 ℃, and pH value is 7-8, and the time is 90min-150min.
In described step (2), temperature is 50 ℃-60 ℃.
In described step (3), the mass fraction of the relatively described linen fibre of described caustic soda is 3%-4%, the mass fraction of the relatively described linen fibre of described soda ash is 1%-3%, the sodium sulfite that the mass fraction that comprises in addition relatively described linen fibre is 1%-2%, and the mass fraction of the relatively described linen fibre chelated dispersants that is 0.5%-2%, temperature is 90 ℃-100 ℃, and the time is 70min-90min.
In described step (3), temperature is 98 ℃-100 ℃.
In described step (4), the mass fraction of the relatively described linen fibre of described hydrogen peroxide is 3%-5%, the sodium silicate that the mass fraction that comprises in addition relatively described linen fibre is 1%-2%, and the mass fraction of the relatively described linen fibre refining agent that is 1%-2%, pH value is 10-11, temperature is 95 ℃-100 ℃, and the time is 60min-90min.
In described step (1), described sulfuric acid phase is 3%-5% to the mass fraction of described linen fibre, and temperature is 30 ℃-60 ℃, and the time is 30min-60min.
In described step (1), temperature is 40 ℃.
Described linen fibre Degumming method further comprises step (5): use softener to carry out soft treatment, the mass fraction of the relatively described linen fibre of described softener is 10%-40%, and temperature is 30 ℃-40 ℃, and the time is 20min-50min.
Described linen fibre Degumming method further comprises step (6): dewatered drying is processed.
Linen fibre Degumming method of the present invention, employing is carried out abundant degumming process to linen fibre not damaged, environmentally safe, pectase and zytase that selectivity is strong to linen fibre, can effectively improve division number, the uniformity of linen fibre, fully remove the commensal of linen fibre by extraction, bleaching again, thereby spinning count and spinning quality have been improved, reduce production cost and difficulty, reduced disposal of pollutants simultaneously.
The accompanying drawing explanation
Fig. 1 is the flow chart of linen fibre Degumming method of the present invention.
The specific embodiment
Linen fibre Degumming method of the present invention, employing is carried out abundant degumming process to linen fibre not damaged, environmentally safe, pectase and zytase that selectivity is strong to linen fibre, improve division number, the uniformity of linen fibre, fully remove the commensal of linen fibre by extraction, bleaching again, to reach the purpose that improves spinning count.Its concrete steps are (below each content of material of mentioning be the mass fraction of the relative linen fibre of this material) as shown in Figure 1.
(1) pickling
The concrete technology parameter is as follows: sulfuric acid 3%-5%, and temperature is 30 ℃-60 ℃, and the best is 40 ℃, and the time is 30min-60min.
(2) pectase and zytase come unstuck
Linen fibre after the present invention adopts pectase and zytase to pickling is come unstuck, can effectively remove whole pectin in linen fibre (comprising that those are wrapped in the pectin on other commensals such as hemicellulose) and most of other commensals, degumming effect improves greatly.
The concrete technology parameter is as follows: pectase 1%-2%, and zytase 0.5%-2%, temperature is 40 ℃-70 ℃, and the best is 50 ℃-60 ℃, and pH value is 7-8, and the time is 90min-150min.
Wherein, the pectase PRIMA GREEN ECOSCOUR that pectase can adopt bioengineering Co., Ltd of outstanding person's energy section to produce, the bioscouring enzyme 301L that letter Bioisystech Co., Ltd of Novi produces etc., the zytase OPTIMASE CX72L that zytase can adopt bioengineering Co., Ltd of outstanding person's energy section to produce etc.
(3) alkali extraction
The concrete technology parameter is as follows: caustic soda (NaOH) 3%-4%, soda ash (Na
2cO
3) 1%-3%, sodium sulfite 1%-2%, chelated dispersants 0.5%-2%, temperature is 90 ℃-100 ℃, and the best is 98 ℃-100 ℃, and the time is 70min-90min.
Wherein, chelated dispersants can adopt sodium silicate, the chelated dispersants CBI that also can adopt Shanghai Fluoropolymer Medical Products Co., Ltd. to produce, and the chelated dispersants VEROLAN NBE of Rudoiph's chemical industry Co., Ltd production etc.
(4) hydrogen peroxide bleaching
The concrete technology parameter is as follows: hydrogen peroxide 3%-5%, and sodium silicate 1%-2%, refining agent 1%-2%, pH value is 10-11, and temperature is 95 ℃-100 ℃, and the time is 60min-90min.
Wherein, the refining agent H-95 that refining agent can adopt Shanghai Fluoropolymer Medical Products Co., Ltd. to produce, and the multi-function refining flux RUCO-STAB LGA of Rudoiph's chemical industry Co., Ltd production etc.
(5) upper softener
The concrete technology parameter is as follows: softener 10%-40%, and temperature is 30 ℃-40 ℃, the time is 20min-50min.
Wherein, the NON IONIC SOFTNER GES-C that softener can adopt the precious chemical industry of Guangzhou moral Co., Ltd to produce, and the dense softener ZK-23 of height of Guangzhou Zhen Ke Science and Technology Ltd. production and ZK-93 etc.
(6) dewatered drying
Dewatered drying through after combing, the linen fibre obtained by the present invention can be on cotton spinning apparatus 21 pure linen knitting use yarns of dry-spinning and 32 flax/cottons (55/45) knitting yarns, the indices of resultant yarn all reaches knitting requirement.Compare with bast fibre spinning water spinning equipment, reduced production cost and difficulty, improved spinning count.In addition, this technique has been avoided polluting large, that equipment requirement is high chlorite bleaching operation or sodium hypochlorite bleaching operation, reduces and uses alkali 10%-15%, can realize reducing the disposal of pollutants more than 50% fully.
Embodiment 1
The degumming tech of 200kg linen fibre of take is example, at first linen fibre is filled to cage and advances cylinder, and bath raio is 1:12, then adopts following steps to be processed:
(1) pickling: use H
2sO
46kg processes 30min under 40 ℃ of conditions;
(2) biological enzyme degumming: use pectase 2kg, zytase 2kg, be adjusted to 7-8 with soda ash by pH value, under 40 ℃ of-50 ℃ of conditions, soaks 150 minutes;
(3) alkali extraction: use caustic soda 6kg, soda ash 2kg, Na
2sO
34kg, chelated dispersants CBI2kg processes 70min under 98 ℃ of-100 ℃ of conditions;
(4) hydrogen peroxide bleaching: use 27.5% hydrogen peroxide 22kg, sodium silicate 2kg, refining agent H952kg, used caustic soda that pH value is adjusted to 11, under 98 ℃ of-100 ℃ of conditions, processes 60min;
(5) upper softener: use softener 40kg, under 40 ℃ of conditions, process 30min;
(6) dewatered drying
Embodiment 2
The degumming tech of 200kg linen fibre of take is example, at first linen fibre is filled to cage and advances cylinder, and bath raio is 1:12, then adopts following steps to be processed:
(1) pickling: use H
2sO
410kg processes 30min under 60 ℃ of conditions;
(2) biological enzyme degumming: use pectase 4kg, zytase 1kg, be adjusted to 7-8 with soda ash by pH value, under 60 ℃ of-70 ℃ of conditions, soaks 90 minutes;
(3) alkali extraction: use caustic soda 7kg, soda ash 6kg, Na
2sO
33kg, chelated dispersants CBI1kg processes 90min under 90 ℃ of-92 ℃ of conditions;
(4) hydrogen peroxide bleaching: use 27.5% hydrogen peroxide 36kg, sodium silicate 4kg, refining agent H953kg, used caustic soda that pH value is adjusted to 11, under 95 ℃ of-98 ℃ of conditions, processes 90min;
(5) upper softener: use softener 20kg, under 30 ℃ of conditions, process 50min;
(6) dewatered drying
Embodiment 3
The degumming tech of 200kg linen fibre of take is example, at first linen fibre is filled to cage and advances cylinder, and bath raio is 1:12, then adopts following steps to be processed:
(1) pickling: use H
2sO
48kg processes 60min under 30 ℃ of conditions;
(2) biological enzyme degumming: use pectase 3kg, zytase 4kg, be adjusted to 7-8 with soda ash by pH value, under 50 ℃ of-60 ℃ of conditions, soaks 120 minutes;
(3) alkali extraction: use caustic soda 8kg, soda ash 4kg, Na
2sO
32kg, chelated dispersants CBI4kg processes 80min under 95 ℃ of-98 ℃ of conditions;
(4) hydrogen peroxide bleaching: use 27.5% hydrogen peroxide 30kg, sodium silicate 3kg, refining agent H954kg, used caustic soda that pH value is adjusted to 10, under 98 ℃ of-100 ℃ of conditions, processes 70min;
(5) upper softener: use softener 80kg, under 35 ℃ of conditions, process 20min;
(6) dewatered drying
The present invention carries out abundant degumming process by pectase and zytase to linen fibre, can effectively remove the commensal in linen fibre, reduced the consumption of caustic soda and soda ash, and avoided the use of sodium chlorite fully, therefore damage hardly fiber, when for spinning fine-count yarn, supplying raw materials quality assurance, reduced greatly the discharge of pollutant.
Above-described, be according to preferred embodiment of the present invention, not in order to limit scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Be that simple, the equivalence that every claims according to the present patent application and description are done changes and modify, all fall into claim protection domain of the present invention.The present invention's common practise that technology contents of detailed description is not those skilled in the art.
Claims (10)
1. a linen fibre Degumming method, is characterized in that, the method comprises the steps:
(1) use sulfuric acid to carry out pickling;
(2) use pectase and zytase to be come unstuck, the mass fraction of the relatively described linen fibre of described pectase is 1%-2%, and the mass fraction of the relatively described linen fibre of described zytase is 0.5%-2%;
(3) use caustic soda and soda ash to be extracted;
(4) use hydrogen peroxide to be bleached.
2. linen fibre Degumming method as claimed in claim 1, is characterized in that, in described step (2), temperature is 40 ℃-70 ℃, and pH value is 7-8, and the time is 90min-150min.
3. linen fibre Degumming method as claimed in claim 2, is characterized in that, in described step (2), temperature is 50 ℃-60 ℃.
4. linen fibre Degumming method as claimed in claim 1 or 2, it is characterized in that, in described step (3), the mass fraction of the relatively described linen fibre of described caustic soda is 3%-4%, the mass fraction of the relatively described linen fibre of described soda ash is 1%-3%, the sodium sulfite that the mass fraction that comprises in addition relatively described linen fibre is 1%-2%, and the mass fraction of the relatively described linen fibre chelated dispersants that is 0.5%-2%, temperature is 90 ℃-100 ℃, and the time is 70min-90min.
5. linen fibre Degumming method as claimed in claim 4, is characterized in that, in described step (3), temperature is 98 ℃-100 ℃.
6. linen fibre Degumming method as claimed in claim 1 or 2, it is characterized in that, in described step (4), the mass fraction of the relatively described linen fibre of described hydrogen peroxide is 3%-5%, the sodium silicate that the mass fraction that comprises in addition relatively described linen fibre is 1%-2%, and the mass fraction of the relatively described linen fibre refining agent that is 1%-2%, pH value is 10-11, temperature is 95 ℃-100 ℃, and the time is 60min-90min.
7. linen fibre Degumming method as claimed in claim 1 or 2, is characterized in that, in described step (1), described sulfuric acid phase is 3%-5% to the mass fraction of described linen fibre, and temperature is 30 ℃-60 ℃, and the time is 30min-60min.
8. linen fibre Degumming method as claimed in claim 7, is characterized in that, in described step (1), temperature is 40 ℃.
9. linen fibre Degumming method as claimed in claim 1 or 2, it is characterized in that, further comprise step (5): use softener to carry out soft treatment, the mass fraction of the relatively described linen fibre of described softener is 10%-40%, temperature is 30 ℃-40 ℃, and the time is 20min-50min.
10. linen fibre Degumming method as claimed in claim 9, is characterized in that, further comprises step (6): dewatered drying is processed.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726108A (en) * | 2014-01-14 | 2014-04-16 | 上海裔可纺织技术有限公司 | Jute fiber degumming method |
| CN104099670A (en) * | 2014-06-25 | 2014-10-15 | 齐齐哈尔大学 | Method for degelatinizing hemp fiber with biological enzyme degelatinizing method combined with chemical degelatinizing method |
| CN104726969A (en) * | 2015-04-09 | 2015-06-24 | 济南市纺织科学研究院 | Flax offcut processing technology |
| CN104831437A (en) * | 2015-05-29 | 2015-08-12 | 大竹县金桥麻业有限责任公司 | Production process for ramie cloth |
| CN105040118A (en) * | 2015-08-14 | 2015-11-11 | 辽宁轻工职业学院 | Apocynum venetum bast fiber supercritical carbon dioxide biochemical degumming method |
| CN109338481A (en) * | 2018-10-23 | 2019-02-15 | 仝俊杰 | A kind of continuous degumming tech of pineapple flaxen fiber |
| CN110284316A (en) * | 2019-07-26 | 2019-09-27 | 愉悦家纺有限公司 | A kind of novel boiling and bleaching process for pure flax yarn |
| CN112746335A (en) * | 2020-12-25 | 2021-05-04 | 云南汉盟制药有限公司 | Preparation method of industrial hemp fiber powder and composite foam material and antibacterial composite insole |
| CN113684542A (en) * | 2021-09-28 | 2021-11-23 | 穆棱市金泰恒亚麻纺织有限公司 | Flax yarn fiber refining and impurity removing process |
| CN117779210A (en) * | 2024-01-04 | 2024-03-29 | 中国农业科学院麻类研究所 | Salt dissolving degumming method for hemp/straw |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726108A (en) * | 2014-01-14 | 2014-04-16 | 上海裔可纺织技术有限公司 | Jute fiber degumming method |
| CN103726108B (en) * | 2014-01-14 | 2015-10-28 | 上海裔可纺织技术有限公司 | A kind of tossa Degumming method |
| CN104099670A (en) * | 2014-06-25 | 2014-10-15 | 齐齐哈尔大学 | Method for degelatinizing hemp fiber with biological enzyme degelatinizing method combined with chemical degelatinizing method |
| CN104726969A (en) * | 2015-04-09 | 2015-06-24 | 济南市纺织科学研究院 | Flax offcut processing technology |
| CN104831437A (en) * | 2015-05-29 | 2015-08-12 | 大竹县金桥麻业有限责任公司 | Production process for ramie cloth |
| CN105040118A (en) * | 2015-08-14 | 2015-11-11 | 辽宁轻工职业学院 | Apocynum venetum bast fiber supercritical carbon dioxide biochemical degumming method |
| CN109338481A (en) * | 2018-10-23 | 2019-02-15 | 仝俊杰 | A kind of continuous degumming tech of pineapple flaxen fiber |
| CN110284316A (en) * | 2019-07-26 | 2019-09-27 | 愉悦家纺有限公司 | A kind of novel boiling and bleaching process for pure flax yarn |
| CN110284316B (en) * | 2019-07-26 | 2021-11-23 | 愉悦家纺有限公司 | Boiling and bleaching process for pure linen yarn |
| CN112746335A (en) * | 2020-12-25 | 2021-05-04 | 云南汉盟制药有限公司 | Preparation method of industrial hemp fiber powder and composite foam material and antibacterial composite insole |
| CN113684542A (en) * | 2021-09-28 | 2021-11-23 | 穆棱市金泰恒亚麻纺织有限公司 | Flax yarn fiber refining and impurity removing process |
| CN117779210A (en) * | 2024-01-04 | 2024-03-29 | 中国农业科学院麻类研究所 | Salt dissolving degumming method for hemp/straw |
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