CN1490443A - Biodegradable fiber and producing method thereof - Google Patents
Biodegradable fiber and producing method thereof Download PDFInfo
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- CN1490443A CN1490443A CNA021314292A CN02131429A CN1490443A CN 1490443 A CN1490443 A CN 1490443A CN A021314292 A CNA021314292 A CN A021314292A CN 02131429 A CN02131429 A CN 02131429A CN 1490443 A CN1490443 A CN 1490443A
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Abstract
A biodegradable fiber is prepared from polyamide (PA6) and polylactic acid (PLA) through proportional mixing, fusing in screw extruder and spinning.
Description
The present invention relates to a kind of " environmental protection " fiber, especially new bio degradation of fibers and manufacture method thereof, belong to field of textiles.
Because quality competition and the investment of curbing environmental pollution are bigger, and fibers such as the polyester in the synthetic fiber, polyamide, polyacrylonitrile all can not be degraded in natural environment, this a big hidden danger and reality that has become modern society threatens.Developed country is in order to change this present situation, to solvent method spinning and the development of biodegradable tencel, this trend be called as " green fiber " that modern industrialization produces and 21 century the revolutionary character fiber, this technology has that flow process is short, energy resource consumption is low, characteristics such as no waste water, waste gas, environmental pollution more and more are subjected to the great attention and the common concern of China and other country of the world.But China does not find this Biodegradable fiber as yet at present.
The purpose of this invention is to provide a kind of new bio degradation of fibers (PA with unique biodegradation character
6/ PLA) and manufacture method.This degradation of fiber performance and catabolite have the security of height, this product has overcome shortcomings such as pure acid fiber by polylactic degradation speed is fast, spinnability difference, not only has the sense of acid fiber by polylactic velvet but also have the flexible style of polyamide fibre, can be widely used in clothes, sweat shirt, underwear, medical and hygiene article, and field such as agricultural, aquatic products, papermaking, health, civil engineering.Especially when product and cotton wool blending, have the velvet sense, the spy is suitable for manufacturing T-shirt, jacket, stocking and bridal gown, and textile dyeing is good, and is beautiful in colour, has affinity with human body, is subjected to consumer's favorable comment.Therefore has vast market prospect.
The object of the present invention is achieved like this, adopts the efficient direct synthesizing polylactic acid of polycondensation catalytic one-stage method (PLA), with PA
6By 45/55 proportioning, adopt the melt blending spinning to make.
Concrete manufacture method is as follows:
1, efficient polycondensation catalytic one-stage method synthesizing polylactic acid (PLA)
This project adopts efficient polycondensation catalytic one-stage legal system to be equipped with PLA (PLA) on the one-step method basis, the hydroxyl that promptly utilizes lactic acid (OH) and carboxyl (activity COOH), by adopting catalysis method and suitable temperature to make intermolecular acceleration dehydration polycondensation obtain PLA, this method can shorten the original one-step method production cycle, the yield height, therefore, realized efficient polycondensation one-step method synthesizing polylactic acid.The reaction equation of synthesizing polylactic acid:
Technology path is seen Figure of description 1.
2, polyamide (PA
6) with the preparation of PLA (PLA) blended fiber
The PLA (PLA) that makes is added polyamide (PA according to a certain percentage
6) in, after fully mixing, enter worm press and carry out melt spinning, control suitable spinning temperature, pressure and cooling condition make as-spun fibre, stretched again and HEAT SETTING, the final PA that obtains to have biological degradability
6/ PLA blended fiber.
Technology path is seen Figure of description 2.
Below in conjunction with following embodiment the present invention is further described, scope of the present invention is not subjected to the restriction of present embodiment.
The present invention manufactures experimently new bio degradation of fibers (PA
6/ PLA):
Product specification: 1.67 dtexs are cut length for 38 millimeters
Raw material: polyamide, PLA
Make as follows:
1, adopt efficient polycondensation catalytic one-stage legal system to be equipped with PLA (PLA) lactic acid polymerizes technological parameter:
Prepolymerization: 130～140 ℃ 3 hours
Melt polymerization: 160～190 ℃ 10～20 hours
Catalyst: tin series catalysts
Decompression polymerization: 400Pa progressively is decompressed to 70Pa
2, the PLA that makes is added by a certain percentage in the polyamide and after fully mixing, to enter worm press and carry out melt spinning, stretched and typing behind control proper temperature, pressure and the cooling condition, the new bio degradation of fibers.
(PA
6/ PLA) new bio degradation of fibers spinning technology parameter:
Incorporation time: 3h
Mixing match: PA
6: PLA=45: 55
Spinning temperature: 250 ℃
Spinning speed: 500～1000m/min
Draw ratio: 5～8 times
The chip drying temperature: 130～140 ℃ 8～10 hours
Lateral blowing wind speed: 0.2～0.4m/s
Wind-warm syndrome: 26～28 ℃ of wind pushing box humidity: 70～80%
Through Jilin Province's examination of fibers place check new bio degradation of fibers (PA
6/ PLA) index sees Table 1
Equal accord with Q/the GXSJK01-2002 of above-mentioned every quality index " new bio degradation of fibers (PA
6/ PLA) " company standard.
The inventor will implement gained new bio degradation of fibers (PA
6/ PLA) try to spin in certain textile mills, spin in the process in examination, passed through operations such as arrangement, blowing, rove, spun yarn, dyeing smoothly, satisfied the textile technology requirement.With new bio degradation of fibers (PA
6/ PLA) spin the clothes of making trial-production, try on respond well.Soft except that having general fabric, drapability is good, hygroscopicity is strong, outside the good permeability, advantage such as comfortable and easy to wear, this product purpose is very extensive, when can be used for fields such as clothes, medical treatment, health, civil engineering, agricultural material especially with the cotton wool blending, have velvet sense outward appearance, with human body compatibility is arranged, the spy is suitable for making T-shirt, jacket, stocking and wedding clothes, textile dyeing is good, beautiful in colour without any side effects, safe and reliable.
This product can be spun into long filament, also can be spun into short silk.And the main raw material of producing the new bio degradation of fibers is corn, and my company is located in the Northeast, is one of corn place of production of China, and corn resources is abundant, and low price can ensure the raw material supply of this project fully.Therefore raw material resources have very strong competitiveness.
The appearance of this product has stepped a new step for promoting China's fiber industry to the high-tech area development, and range of application is very extensive, will produce good social benefit and economic benefit after applying.
Table 1:
New bio degradation of fibers (PA
6/ PLA) Q/GXSJK01-2002 is reported in quality inspection
| Test item | Set quota (Grade A) | Assay |
| Line density deviation ratio % | ?????±4.0 | ????-0.90 |
| Do fracture strength CN/dtex | ?????≥4.5 | ????4.60～6.00 |
| Wet breaking strength CN/dtex | ?????≥2.1 | ????2.45～2.78 |
| Dried elongation at break % | ?????≥25 | ????30.00～40.00 |
| Length variation rate % | ?????±6.00 | ????0.87 |
| Overcut fibre % | ?????≤0.5 | ????0.20 |
| Over-length fibre content | ?????≤4.0 | ????0 |
| Fault mg/100g | ?????≤4.0 | ????0 |
| Do strong coefficient of variation % | ?????≤18.00 | ????12.50 |
| Initial modulus GPa | ?????≥4.5 | ????4.80～5.60 |
| Oil content | ????0.25 | |
| Conclusion: this product this time check result meets Grade A according to above-mentioned test basis | ||
Claims (2)
1, a kind of new bio degradation of fibers is to add polyamide (PA in PLA (PLA)
6) carry out blend, make through melt spinning.It is characterized in that this fiber can degrade under conditions such as natural environment and acid, alkali, finally become H
2O and CO
2, environment is not produced secondary pollution, be " green textile material " completely.
2, a kind of new bio degradation of fibers (PA
6/ PLA) manufacture method is as follows:
(1) the efficient direct synthesizing polylactic acid of polycondensation catalytic one-stage method
Select tin catalyst series and 130～190 ℃ of temperature for use, pressure 70～400pa, 10～20 hours through the efficient direct synthesizing polylactic acid of polycondensation catalytic one-stage method.
(2) preparation bi-component Biodegradable fibers
The PLA (PLA) that efficient polycondensation catalytic one-stage method is synthetic is as blend components and polyamide (PA
6) by 45/55 proportioning, 3 hours blend time, make spinning solution with biodegradability.
(3) new bio degradation of fibers (PA
6/ PLA) spinning
Adopt the melt spinning technology, carry out spinning for 500～1000 meters/minute with spinning speed, 250 ℃ of spinning temperatures get new bio degradation of fibers (PA
6/ PLA).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021314292A CN1490443A (en) | 2002-10-14 | 2002-10-14 | Biodegradable fiber and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021314292A CN1490443A (en) | 2002-10-14 | 2002-10-14 | Biodegradable fiber and producing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1490443A true CN1490443A (en) | 2004-04-21 |
Family
ID=34144931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021314292A Pending CN1490443A (en) | 2002-10-14 | 2002-10-14 | Biodegradable fiber and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1490443A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429338C (en) * | 2002-08-30 | 2008-10-29 | 东丽株式会社 | Polylactic acid fiber, yarn package, and textile product |
| CN104294384A (en) * | 2014-09-16 | 2015-01-21 | 河南省龙都生物科技有限公司 | Polylactic acid fiber overspeed spinning technology |
| WO2016079724A2 (en) | 2016-04-04 | 2016-05-26 | Rhodia Poliamida E Especialidades Ltda | Biodegradable polyamide fiber, process for obtaining such fiber and polyamide article made therefrom |
| CN106917161A (en) * | 2017-03-17 | 2017-07-04 | 宁波三邦超细纤维有限公司 | PLA nylon superfine composite fibre and preparation method thereof |
| CN109137523A (en) * | 2018-06-05 | 2019-01-04 | 苏州存异新材料科技有限公司 | A kind of manufacturing method of new bio textile material |
| CN109898178A (en) * | 2019-03-18 | 2019-06-18 | 苏州申久高新纤维有限公司 | A kind of spinnability fiber prescription and preparation method thereof |
-
2002
- 2002-10-14 CN CNA021314292A patent/CN1490443A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429338C (en) * | 2002-08-30 | 2008-10-29 | 东丽株式会社 | Polylactic acid fiber, yarn package, and textile product |
| CN104294384A (en) * | 2014-09-16 | 2015-01-21 | 河南省龙都生物科技有限公司 | Polylactic acid fiber overspeed spinning technology |
| WO2016079724A2 (en) | 2016-04-04 | 2016-05-26 | Rhodia Poliamida E Especialidades Ltda | Biodegradable polyamide fiber, process for obtaining such fiber and polyamide article made therefrom |
| JP2019513911A (en) * | 2016-04-04 | 2019-05-30 | ローディア ポリアミダ エ エスペシアリダデス エス．アー． | Biodegradable polyamide fibers, process for obtaining such fibers, and polyamide articles made therefrom |
| EP3440243B1 (en) | 2016-04-04 | 2022-06-22 | Rhodia Poliamida e Especialidades S.A. | Biodegradable polyamide fiber, process for obtaining such fiber and polyamide article made therefrom |
| CN106917161A (en) * | 2017-03-17 | 2017-07-04 | 宁波三邦超细纤维有限公司 | PLA nylon superfine composite fibre and preparation method thereof |
| CN109137523A (en) * | 2018-06-05 | 2019-01-04 | 苏州存异新材料科技有限公司 | A kind of manufacturing method of new bio textile material |
| CN109898178A (en) * | 2019-03-18 | 2019-06-18 | 苏州申久高新纤维有限公司 | A kind of spinnability fiber prescription and preparation method thereof |
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Addressee: Du Xiujun Document name: Deemed as a notice of withdrawal |
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| WD01 | Invention patent application deemed withdrawn after publication |