CN1217061C - Method for modifying ramie yarn - Google Patents
Method for modifying ramie yarn Download PDFInfo
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- CN1217061C CN1217061C CN 01108073 CN01108073A CN1217061C CN 1217061 C CN1217061 C CN 1217061C CN 01108073 CN01108073 CN 01108073 CN 01108073 A CN01108073 A CN 01108073A CN 1217061 C CN1217061 C CN 1217061C
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Abstract
The present invention belongs to a method for modifying ramie yarn. Ramie raw yarn is shaken into ramie hank yarn. The present invention is characterized in that after the hank yarn is soaked in cellulase, alkali is used for carrying out mercerization, and the hank yarn is soaked in cellulase for the second time. The processing procedures of the processing method have the technical effects of progressive modification. After the ramie yarn is modified by the method, hair feathers on the surface of the ramie yarn are thinned and softened and even fall off. Therefore, the hand feeling of the ramie yarn is improved, the itch feeling of skin is eliminated, and the spinning performance and the glossiness of the ramie yarn are increased.
Description
The invention belongs to the method for modifying ramie yarn.
The making step of ramie fabric is: ramee → spin → weave cotton cloth → dyeing and finishing.Ramee is compared with other natural fabric, and it has higher intensity, but its fiber is slightly long, degree of crystallinity is high and the degree of orientation is high, has determined that therefore ramee is endured firmly, rigidity is big, and the resultant yarn cohesive force is poor.The yam surface filoplume that is spun into ramie is many and hard, and is coarse stiffening with yarn braiding ramie fabric feel.When ramie fabric and contact skin, stiffening filoplume chafe produces prodding and itching feeling.In the prior art, adopt the technology singe, the ramie yarn surface plumage quantity that becomes mildewed is reduced.But the plumage that becomes mildewed becomes the undercoat plumage, can only reach the purpose that yam surface increases fineness.And filoplume is short more, and the fiber resistant to bending stresses is big more, and is serious more to the skin urtication sense.In addition, because the ramie yarn rigidity is big, make that the woven performance of ramie yarn on knitting machine is also relatively poor.
The object of the present invention is to provide a kind of method of modifying ramie yarn, through after the inventive method modification, ramee rigidity reduces, and the filoplume on ramie yarn surface attenuates, deliquescing, jag lodging, so that come off.Thereby improve the feel of ramie yarn.Eliminate its prodding and itching feeling, improve the woven performance and the glossiness of ramie yarn skin.
Technical scheme of the present invention is that the ramie raw yarn is shaken into the ramie reeled yarn, is characterised in that the ramie reeled yarn is used after the cellulase impregnation process for the first time, carries out mercerising with alkali and handles, and uses the cellulase impregnation process for the second time.
It is further characterized in that:
Process conditions with the cellulase impregnation process are for the first time:
Reeled yarn is immersed in water, and the bath raio of reeled yarn and water is 1: 15,
The cellulase consumption is 0.5-2% (to the yarn weight ratio), and cellulase is added in the entry, becomes the cellulase maceration extract,
The pH value of regulating maceration extract with acetic acid is 4.5-5.5,
Processing time: 40-60 minute,
Treatment temperature: 50-60 ℃
The said second time, the process conditions with the cellulase impregnation process were:
Reeled yarn is immersed in water, and the bath raio of reeled yarn and water is 1: 15,
The cellulase consumption is 0.5-2.0% (to a yarn weight), cellulase added in the entry,
The pH value of regulating maceration extract with acetic acid is 4.5-5.5,
Processing time: 30-60 minute,
Treatment temperature: 45-55 ℃
It is said that to carry out the process conditions that mercerising handles with alkali are common process.
The present invention at first adopts cellulase that the ramie reeled yarn is carried out impregnation process, cellulase is a kind of protein that has special catalytic action, in the cellulose macromolecule on its energy catalyzing hydrolysis ramie reeled yarn surface 1,4 β-glucose key, make fibre crystallinity, the degree of polymerization descend the refinement of fiber macromolecular chain.Thereby produce the technique effect of three aspects: the fiber filoplume on one, ramie yarn surface and fento break away from from the yarn surface, make the ramie yarn surface clear bright and clean, improve the glossiness of ramie yarn, removing filoplume with traditional operation of singing compares, the removal filoplume is effective, can also energy savings and non-environmental-pollution.Its two, the degree of crystallinity of fiber in the ramie yarn, the degree of polymerization descend, the macromolecular chain refinement of fiber can improve the absorption property of ramie yarn to alkali, carries out the technique effect that linear light is handled thereby improve thereafter with alkali.They are three years old, after the mercerising processing, with cellulase the ramie reeled yarn is carried out impregnation process again, because concentrated base is deep in the fiber crystal region of ramie yarn in the mercerising processing procedure, the degree of crystallinity of fiber is reduced, increase the amorphous region, further improves the chemism of fiber, thereby improve the absorption property to cellulase.So in the inventive method, the ramie reeled yarn is adopted cellulase impregnation process---mercerising processing---technology of cellulase impregnation process, the ramie reeled yarn is had the technique effect of the modification of going forward one by one.
The embodiment of the inventive method below is described, the employed equipment of each embodiment is jet dyeing machine.
Embodiment 1:
(1) use the cellulase impregnation process for the first time:
The ramie reeled yarn is dipped in the tank, and the bath raio of reeled yarn and water is 1: 15,
The water temperature heating is risen to 55-60 ℃,
Add acetic acid, the pH value of regulating maceration extract is 4.5-5,
Add cellulase (product trade mark RF93), consumption is 0.5% (to the yarn weight ratio),
60 minutes impregnation process time, maceration extract in the emptying groove then, use water rinse, add water to submerge the ramie reeled yarn again, by the proportional quantities of 1 gram/1 premium on currency, add soda ash (sodium carbonate), solution is warmed up to 60 ℃, and impregnation process 15 minutes loses activity the cellulase in the ramie yarn, again with alkali lye emptying in the groove, with clear water rinsing 3 times.
(2) mercerising is handled:
Ramie yarn after above-mentioned rinsing is inserted in the mercerising groove, the caustic soda of inserting in the groove (NaOH) amount is every premium on currency 200 grams, caustic dip processing 20 seconds in order, loose formula caustic dip 30 seconds, tension force (elongation 1%) caustic dip 40 seconds, loose formula caustic dip 40 seconds, maximum tension (elongation 1.5%) caustic dip 60 seconds, then alkali lye is extracted, hot water rinsing 50 seconds, cold rinse 50 seconds make it neutrality, extract moisture content at last.Above mercerising is treated to common process.Device therefor is conventional mercerizing range.
(3) use the cellulase impregnation process for the second time:
The ramie yarn of organizine optical processing is dipped in the tank, and the bath raio of reeled yarn and water is 1: 15,
Add acetic acid, the pH value of regulating maceration extract is 4.5-5,
Add cellulase (brand CellusoftL), consumption is 2% (to the yarn weight ratio), with the maceration extract heat temperature raising to 50-55 ℃, flooded 60 minutes, the discharging maceration extract, use water rinse, add water to submerge the ramie reeled yarn again, the proportional quantities adding soda ash (sodium carbonate) by 1.5 grams/1 premium on currency is warmed up to 90 ℃ with solution, impregnation process 5 minutes, cellulase in the ramie yarn is lost activity, with alkali lye emptying in the groove, use water rinse successively again, with acetum rinsing (residual alkali lye neutralizes), use the clear water rinsing again 2 times.
Embodiment 2:
(1) use the cellulase impregnation process for the first time:
The ramie reeled yarn is dipped in the tank; The water temperature heating is risen to 50-55 ℃,
Add acetic acid, the pH value of regulating maceration extract is 5-5.5,
Add cellulase (product trade mark Cellusoft L), consumption is 1.2% (to the yarn weight ratio)
40 minutes impregnation process time.
(2) use the cellulase impregnation process for the second time:
The ramie reeled yarn is immersed in the tank, adds acetic acid, and the pH value of regulating maceration extract is 5-5.5,
Add cellulase (product trade mark RF93), consumption is 1.2% (to the yarn weight ratio),
Maceration extract is heated to 45-50 ℃, flooded 30 minutes, all the other processes are with embodiment 1.
Embodiment 3:
(1) use the cellulase impregnation process for the first time:
After being dipped in the ramie reeled yarn in the tank, the water heating is risen to 50-55 ℃,
Add acetic acid, the pH value of regulating maceration extract is 5-5.5, adds cellulase (product trade mark RF93), and consumption is 2% (to yarn silk weight ratio),
50 minutes impregnation process time;
(2) use the cellulase impregnation process for the second time:
The ramie yarn of organizine optical processing is dipped in the tank,
Add acetic acid, the pH value of regulating maceration extract is 5-5.5,
The maceration extract heat temperature raising adds cellulase (product trade mark Cellusoft L) to 45-50 ℃, and consumption is 0.5% (to the yarn weight ratio),
Flooded 45 minutes,
All the other processes are with embodiment 1.
Claims (2)
1, the method for modifying ramie yarn is shaken into the ramie reeled yarn with the ramie raw yarn, it is characterized in that the ramie reeled yarn is used after the cellulase impregnation process for the first time, carries out mercerising with alkali and handles, and uses the cellulase impregnation process for the second time.
2, by the method for the described modifying ramie yarn of claim 1, it is characterized in that:
The said first time, the process conditions with the cellulase impregnation process were:
Reeled yarn is immersed in water, and the bath raio of reeled yarn and water is 1: 15,
The cellulase consumption is 0.5～2% to the yarn weight ratio, and cellulase is added in the entry, becomes the cellulase maceration extract,
The pH value of regulating maceration extract with acetic acid is 4.5～5.5,
The impregnation process time: 40～60 minutes,
The impregnation process temperature: 50～60 ℃,
The said second time, the process conditions with the cellulase impregnation process were:
Reeled yarn is immersed in water, and the bath raio of reeled yarn and water is 1: 15,
The cellulase consumption is 0.5～2.0% to the yarn weight ratio, cellulase added in the entry,
The pH value of regulating maceration extract with acetic acid is 4.5～5.5,
The impregnation process time: 30～60 minutes,
Impregnation process temperature: 45～55 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108073 CN1217061C (en) | 2001-01-23 | 2001-01-23 | Method for modifying ramie yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108073 CN1217061C (en) | 2001-01-23 | 2001-01-23 | Method for modifying ramie yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367289A CN1367289A (en) | 2002-09-04 |
| CN1217061C true CN1217061C (en) | 2005-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01108073 Expired - Fee Related CN1217061C (en) | 2001-01-23 | 2001-01-23 | Method for modifying ramie yarn |
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| CN (1) | CN1217061C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713149B (en) * | 2009-05-13 | 2011-11-02 | 上海龙之杰企业发展有限公司 | Process for after-finishing biological enzymes of ramie yarn and bast fiber cloth |
| CN102330354A (en) * | 2011-07-26 | 2012-01-25 | 吴江市瑞丰织造有限公司 | Ambary modifier |
| CN105421053B (en) * | 2015-12-24 | 2017-10-27 | 西南大学 | Anti- prodding and itching feeling method for sorting of the lithium chloride/dimethyl acetamide to ramie fabric |
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2001
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| CN1367289A (en) | 2002-09-04 |
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Denomination of invention: Method for modifying ramie yarn Effective date of registration: 20120627 Granted publication date: 20050831 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Natural Textile Industrial Co., Ltd. Registration number: 2012990000330 |
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