CN1523139A - LYOCELL fabric double screw bolts spinning machine and process therefor - Google Patents
LYOCELL fabric double screw bolts spinning machine and process therefor Download PDFInfo
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- CN1523139A CN1523139A CNA031040845A CN03104084A CN1523139A CN 1523139 A CN1523139 A CN 1523139A CN A031040845 A CNA031040845 A CN A031040845A CN 03104084 A CN03104084 A CN 03104084A CN 1523139 A CN1523139 A CN 1523139A
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- screw
- spinning machine
- tertiary amine
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- methyl morpholine
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Abstract
The present invention discloses a specially-made double-screw machine and a process for quickly and high-effectively preparing Lyocell fibre using the machine. Said process includes the following steps: mixing cellulose fiber pulp and a certain quantity of oxidized methyl morpholine aqueous solution, metering and feeding said obtained mixture into said invented double-screw machine, quickly heating, vacuum dewatering, dissolving to form colloid, and extruding and spinning.
Description
The present invention relates to fiber pulp is processed into Lyocell fibre manufacturing technique and equipment with one step of twin-screw spinning machine.
The Lyocell fiber is the new generation of environment protection fiber, and it is to be main dissolution with solvents fiber pulp by the oxidation methyl morpholine, is the fiber of coagulating bath technology spinning with water.Quality of fiber is relevant with adhesive-preparing technology efficient with cost, the invention provides a kind of efficient glue spinning technique of dual-screw-stem machine and dual-screw-stem machine spinning equipment of utilizing.
Spinning technique is seen accompanying drawing one
LYOCELL fibre spinning machine agent structure schematic diagram is seen accompanying drawing two
At present, abroad in making the Lyocell fibre technology, generally all substep carries out, and earlier will Cellulose pulp and the methyl morpholine oxide solution glue that dewaters in vacuum tank is sent into two again Extruding spinning in the screw machine. It then is earlier with methyl morpholine oxide that Korea S adopts twin-screw technology Be concentrated to crystal, in dual-screw-stem machine, mix with cellulose pulp again, dissolve, become glue, Spinning is not carried out the methyl morpholine oxide thickening at dual-screw-stem machine, the Donghua University of China The technology of studying is also identical with Korea S. See " Donghua University's journal " calendar year 2001 the 5th for details Phase P127～131 " the sign of cellulose/NMMO solution dissolving method and solution thereof. "
Method and apparatus among the present invention is characterised in that:
(1) use the oxidation methyl morpholine aqueous solution evenly, fully to be penetrated among the fiber pulp earlier, fully swollen cellulose carries out vacuum dehydration again.
(2) in dual-screw-stem machine, to finish heating swelling, vacuum dehydration fast, be dissolved into glue, extruding spinning all processes, whole process only needs 5-10 minute.
(3) dewater step by step in dual-screw-stem machine, model machine is taked one to three grade of dehydration.
Good effect of the present invention is as follows:
(1) use the oxidation methyl morpholine aqueous solution to mix with cellulose pulp, the oxidation methyl morpholine is penetrated in the fiber equably to be gone, guarantee into glue evenly, fast, reduce owing to glue easily is dissolved on the surface of using oxidation methyl morpholine crystal fused solution to produce, inner difficult infiltration,, cause glue inhomogeneous, easily produce cellulose grain.
(2) the present invention with heating, the vacuum dehydration of slurry, be dissolved into glue, extruding spinning is finished in the lump, whole process shortened the time less than 10 minutes, had reduced the fiber degraded at high temperature and the decomposition of oxidation methyl morpholine.
(3) this equipment is simple, technology is compact, and from being fed to spinning equipment total length 3-4 rice, floor space is little.
(4) material surface turnover rate height; Shear-mixed is effective; Glue is even, no bubble.
(5) also be suitable for personalized, functionalization specialty fibers production.
(6) can improve cellulose/oxidation methyl morpholine ratio, reach 15-18%, meet and produce high-modulus, superfine fibre.
Embodiment one:
With new cizu slurry of an age, purified, with 70% oxidation methyl morpholine aqueous solution, bamboo pulp content 10% (referring to the cellulose concentration that not thickening is preceding), feed in the twin-screw spinning machine of the present invention, make slurry be warming up to 80 ℃～90 ℃ through screw rod machine compression section, carry out one-level dehydration, vacuum degree control is at-0.05MP, through the dual-screw-stem machine second mixing compression section, make slurry be warming up to 90～95 ℃, carry out the secondary dehydration, vacuum degree control-0.05～0.07MP, through the 3rd mixing compression section, carry out three grades of dehydrations, vacuum degree control-more than the 0.08MP, through the 4th compression section, extruding spinning, the screw rod extrusion pressure is controlled at 0.3～1MP, measures through measuring pump, supercharging sprays from spinnerets, solidify in the water, wash into silk, obtain the Lyocell fiber, solvent reclaiming.
Embodiment two:
With the pulp and the 60% oxidation methyl morpholine aqueous solution, add 1% nano-silica powder again, mix in the feeding twin-screw spinning machine of the present invention, cotton pulp content 9% (referring to the cellulose concentration that not thickening is preceding), feed in the twin-screw spinning machine of the present invention, as follows embodiment one gets the Lyocell fiber.
Claims (2)
1.Lyocell fiber twin-screw spinning machine is characterized by: forced feed, extruding heating, vacuum dehydration step by step, be dissolved into glue, extrude in one.Wherein turn to can be in the same way or incorgruous for twin-screw; But vacuum dehydration secondary, three grades and more multistage.
2.Lyocell a kind of manufacturing technique of fiber is characterized by:
(1) by the twin-screw spinning machine one step of the oxidation methyl morpholine aqueous solution and pulp mixture is finished heating, dewaters, becomes glue, extrudes a complete set of process.
(2) cellulose concentration of slurry is 5-25%; Can add cosolvent and decorating film in the slurry, as: methyl morpholine, dodecyl dimethyl tertiary amine, hexadecyldimethyl benzyl ammonium tertiary amine, octadecyl dimethyl tertiary amine, the aryl tertiary amine, ammonium chloride, polyoxyethylene ether, polyalcohol, silica, titanium dioxide, silver powder, silver oxide, solid-state pigment, dyestuff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031040845A CN1523139A (en) | 2003-02-23 | 2003-02-23 | LYOCELL fabric double screw bolts spinning machine and process therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031040845A CN1523139A (en) | 2003-02-23 | 2003-02-23 | LYOCELL fabric double screw bolts spinning machine and process therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1523139A true CN1523139A (en) | 2004-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031040845A Pending CN1523139A (en) | 2003-02-23 | 2003-02-23 | LYOCELL fabric double screw bolts spinning machine and process therefor |
Country Status (1)
| Country | Link |
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| CN (1) | CN1523139A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975366A (en) * | 2014-04-11 | 2015-10-14 | 天津工业大学 | Lyocell fiber containing nano particles and preparation method thereof |
| CN107268098A (en) * | 2017-07-20 | 2017-10-20 | 恒天生物基材料工程技术（宁波）有限公司 | A kind of polymer/phase-change microcapsule composite fibre and preparation method thereof |
| CN109234826A (en) * | 2018-09-20 | 2019-01-18 | 武汉纺织大学 | A method of Lyocell fibers are prepared by raw material of bamboo |
| CN110258162A (en) * | 2019-06-12 | 2019-09-20 | 当阳市鸿阳新材料科技有限公司 | Prepare cellulose spinning slurries device and preparation method thereof |
| CN112481723A (en) * | 2020-10-22 | 2021-03-12 | 上海里奥纤维企业发展有限公司 | Solvent method high wet modulus fine denier bamboo fiber and preparation method thereof |
| CN112779612A (en) * | 2021-01-07 | 2021-05-11 | 杭州融凯盛科技有限公司 | Efficient production and manufacturing method and device for lyocell fibers |
| CN115262000A (en) * | 2022-06-30 | 2022-11-01 | 武汉纺织大学 | Device and method for efficiently breaking white core of Lyocell fiber spinning solution |
| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
-
2003
- 2003-02-23 CN CNA031040845A patent/CN1523139A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975366A (en) * | 2014-04-11 | 2015-10-14 | 天津工业大学 | Lyocell fiber containing nano particles and preparation method thereof |
| CN104975366B (en) * | 2014-04-11 | 2018-07-24 | 天津工业大学 | A kind of Lyocell fiber and preparation method thereof containing nano particle |
| CN107268098A (en) * | 2017-07-20 | 2017-10-20 | 恒天生物基材料工程技术（宁波）有限公司 | A kind of polymer/phase-change microcapsule composite fibre and preparation method thereof |
| CN107268098B (en) * | 2017-07-20 | 2020-04-07 | 恒天生物基材料工程技术（宁波）有限公司 | Polymer/phase change microcapsule composite fiber and preparation method thereof |
| CN109234826A (en) * | 2018-09-20 | 2019-01-18 | 武汉纺织大学 | A method of Lyocell fibers are prepared by raw material of bamboo |
| CN110258162A (en) * | 2019-06-12 | 2019-09-20 | 当阳市鸿阳新材料科技有限公司 | Prepare cellulose spinning slurries device and preparation method thereof |
| CN112481723A (en) * | 2020-10-22 | 2021-03-12 | 上海里奥纤维企业发展有限公司 | Solvent method high wet modulus fine denier bamboo fiber and preparation method thereof |
| CN112779612A (en) * | 2021-01-07 | 2021-05-11 | 杭州融凯盛科技有限公司 | Efficient production and manufacturing method and device for lyocell fibers |
| CN112779612B (en) * | 2021-01-07 | 2023-11-14 | 山东鸿泰鼎新材料科技有限公司 | Efficient production and manufacturing method and equipment for lyocell fibers |
| CN115262000A (en) * | 2022-06-30 | 2022-11-01 | 武汉纺织大学 | Device and method for efficiently breaking white core of Lyocell fiber spinning solution |
| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
| CN115262000B (en) * | 2022-06-30 | 2023-12-08 | 武汉纺织大学 | Device and method for efficiently breaking white cores of Lyocell fiber spinning solution |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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