CN1059378A - A kind of manufacture method of viscose staple fibre - Google Patents
A kind of manufacture method of viscose staple fibre Download PDFInfo
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- CN1059378A CN1059378A CN 91104720 CN91104720A CN1059378A CN 1059378 A CN1059378 A CN 1059378A CN 91104720 CN91104720 CN 91104720 CN 91104720 A CN91104720 A CN 91104720A CN 1059378 A CN1059378 A CN 1059378A
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Abstract
The invention provides a kind of low alkali fibre about viscose staple fibre than the preparation of viscose glue and the low sour spinning technique that is mated, it is characterized in that glue adopts soaks clearly → squeezing → double-steeping → twice pressing → pulverizing → experienced process route.Double-steeping adopts big bath raio and carries out in treating tank; Low sour high salt spinning technique is adopted in spinning, and the related parameter that has of double-steeping alkali lye and spinning acid bath has been done new adjustment.Not only technological process is short, equipment is simple in the present invention, be convenient to suitability for industrialized production, and has reduced consumption, has improved the quality of product, has good practical values.
Description
The invention belongs to the production technical field of viscose staple fibre, particularly the compregnate powder double-steeping technology of adhesive-preparing technology and corresponding spinning technique technology thereof.
Finland scholar HSihtola discloses the double-steeping technical scheme of producing the viscose staple fibre adhesive-preparing technology on Tappi periodical in 1969, this scheme is emphasized removing of hemicellulose on principle, adopt the process route of the dipping → squeezing → experienced → squeezing dipping → second time second time on technology.Because double-steeping after experienced, so cause the twice pressing difficulty and be easy to generate whitewashing, increases the hemicellulose in the alkali lye, dialysis machine etc. certainly will to be increased for removing hemicellulose, not only equipment is huge, the practical application difficulty, and be difficult to form suitability for industrialized production.Japan special permission clear 52～40589 disclosed technical schemes have proposed improvement to Finland's double-steeping technology, and squeezing for the first time changes light pressure (crying precompressed again) into, and place after the double-steeping experienced.This invention is applied on continuous screw press.The existing above-mentioned functions of the continuous screw press of the Switzerland Maurer company that chemical fibre factory, China Jiujiang introduces, its method is that the alkali cellulose after flooding is for the first time evenly assisted on filter screen, carry out the precompressed first time,, and enter squeezing pulverizing for the second time subsequently with the weak lye spray.The major defect of this technology is owing to be light pressure for the first time, so when residual alkali calibration normal pressure presses in the alkali cellulose is many, be on filter screen, to carry out fountain because of flooding for the second time again, so dipping is not thorough, can not be with the hemicellulose stripping, do not reach due dipping effect, the consumption of the unit's of causing finished product increases, deficiencies such as economic benefit reduction.
The objective of the invention is to finish low alkali fibre than the preparation of viscose glue and the spining technology that cooperates with it thereof, provide that a kind of equipment is simple, technological process short, consumption is low, quality is high and be convenient to the manufacture method of the short rayon fiber of suitability for industrialized production again.
The present invention has done scientific and reasonable improvement to existing glue and spinning technique.On inventive principle, emphasize the reduction of the free alkali in the alkali fibre, on technical scheme, proposed a kind of new adhesive-preparing technology route, thereby can shorten flow process, simplified apparatus is convenient to realize suitability for industrialized production again; Simultaneously, process and parameter to double-steeping have been done new adjustment and control, removing of all even hemicelluloses that are beneficial to flood, and guarantee that the alkali cellulose swelling capacity had both helped the raising of sulfonating reaction and viscose quality is unlikely to undue swelling again and causes the squeezing difficulty.The adhesive-preparing technology route of this programme is a catalyst also with after experiencedly being placed on squeezing for the second time, pulverizing, and with the cobalt salt, quickens ageing time.Because the fine ratio of the viscose glue alkali of this programme is well below the made viscose glue of conventional method, so in spinning, adopted the spinning technique of the high salt of low acid, particularly the molten parameter of spinning acid has been done new adjustment, to cooperate above-mentioned low alkali fibre, reducing the further purpose of optimizing the quality of product under the prerequisite that consumes, raises the efficiency thereby reach than adhesive-preparing technology.This programme is characterised in that adhesive-preparing technology adopts the dipping → squeezing → squeezing → pulverizing dipping → second time second time → experienced process route, and wherein, double-steeping adopts big molten ratio and carries out in treating tank, and the technological parameter control of its steeping liquor is as follows:
A:NaoH concentration 150～170 grams per liters
45～60 ℃ of b:NaoH temperature
C:Cocl
2Concentration 0.05～0.1 grams per liter
Low sour spinning technique is adopted in spinning, and the molten technological parameter of its spinning acid is controlled as follows:
A:H
2SO
4Concentration 70～90 grams per liters
B:ZnSO
4Concentration 10～13 grams per liters
C: 45～50 ℃ of acid liquor temperatures
D: acid solution proportion 1.26～1.32
E: acid solution drop＜8 grams per liters
The present invention has successfully realized preparation and the corresponding low sour spinning technique of low alkali fibre than viscose glue, and its advantage is that the short equipment of technological process is simple, is convenient to realize suitability for industrialized production, has particularly reduced consumption, has improved the quality of product.Compare with existing process method, one ton of viscose staple fibre of every production can be saved 160 kilograms in caustic soda, 220 kilograms in sulfuric acid, 45 kilograms of sulfur dioxide, and economic benefit is very remarkable.The present invention also can be advantageously used in having the programming automation control of the multiple computer desk sulfonation machine of shared engineering, also can be applicable on the glassine paper industrial production line, has the good social benefit.
Below, will provide embodiments of the invention according to aforesaid process route and technological parameter.
One, adhesive-preparing technology:
The mixed dregs of rice 〉=3 batches
Feed dregs of rice speed: 14.5 kilograms/minute
Concentration of lye: 240 grams per liters
Alkali liquid temperature: 50 ℃
Stock pump rotating speed: 1
#～44 rev/mins; 2
#46 rev/mins; 3
#70 rev/mins
The assistant soakage time: 45 minutes
Pressure balance barrel liquid level 1/2
Balance barrel pressure 0.8 kilograms per centimeter
2
Squeezing transmission rotating speed: 1
#～55 rev/mins; 2
#～54 rev/mins
(single pressing adopts conventional method farthest to remove free alkali lye)
Fine composition of alkali: first fibre 29%; Contain alkali 17%;
Double-steeping concentration of lye: 160 grams per liters
Double-steeping alkali liquid temperature: 50 ℃
Add Cocl
2Concentration: 0.06 grams per liter
Secondary stock pump rotating speed: 46 rev/mins
Twice pressing transmission speed: 50 rev/mins
Secondary alkali lye is formed: first fibre 30%; Contain alkali 13%
Ageing time: 1 hour
Experienced temperature: 35 ℃
The adding method that adopts cobalt salt catalysis is earlier with Cocl
26H
2O is made into the mother liquor of 25 grams per liters, the dilution back adds in the steeping liquor with measuring pump, experienced employing belt-type ageing chamber, its volume is 21.61 * 2.68 * 3.12(cubic meter) sulfonation after experienced can be controlled by computer program from the overall process that is dosed into discharging, other back dissolving, mix, first filtration (middle bucket), two roads filter (middle bucket), deaeration, process of filtering before spinning etc. and technological parameter and equipment are all basic identical with prior art, because alkali cellulose is behind lighter double-steeping alkali lye dipping, to the concentration of alkali lye be improved, for keeping original concentration, should constantly shift out the part steeping liquor.1 ton of viscose of general every production will shift out 50 kilograms caustic soda, and the alkali lye that shifts out is passed through sloping plate deposition, an alkali lye of maceration extract part reuse preparation on top, and a part is sent the pulp workshop to make boiling alkali and is used.The emptying regularly of precipitation part.
Two, spinning technique:
The molten technological parameter of the spinning acid of present embodiment is:
H
2SO
478 grams per liters
ZnSO
412 grams per liters
Temperature 47 grams per liters
Proportion 1.29
Drop 7 grams per liters
Spinning speed in other relevant draft process, the shower nozzle drawing-off, head product drawing-off, two product drawing-offs, total draft, plasticizing acid are dense, the plasticizing-bath temperature, plastify groove steam pressure, carbon disulfide recovery air cooling temperature and liquid cooling temperature and aftertreatment technology equipment and parameter all basic identical with prior art.
Claims (1)
1, a kind of manufacture method of viscose staple fibre is characterized in that:
One, adhesive-preparing technology adopts the dipping → squeezing → squeezing → pulverizing dipping → second time second time → experienced process route.Wherein, double-steeping adopts big bath raio and carries out in treating tank, and the technological parameter control of its steeping liquor is as follows:
A, NaOH concentration 150～170 grams per liters
45～60 ℃ of b, NaOH temperature
C, CoCl
2Concentration 0.05～0.1 grams per liter
Two, low sour spinning technique is adopted in spinning, and the technological parameter control of its spinning acid bath is as follows:
A, H
2SO
4Concentration 70～90 grams per liters
B, ZnSO
4Concentration 10～13 grams per liters
45～50 ℃ of c, acid liquor temperatures
D, acid solution proportion 1.26～1.32
E, acid solution drop＜8 grams per liters
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104720 CN1032489C (en) | 1991-07-09 | 1991-07-09 | Manufacturing method of viscose staple fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104720 CN1032489C (en) | 1991-07-09 | 1991-07-09 | Manufacturing method of viscose staple fibre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1059378A true CN1059378A (en) | 1992-03-11 |
| CN1032489C CN1032489C (en) | 1996-08-07 |
Family
ID=4906776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91104720 Expired - Fee Related CN1032489C (en) | 1991-07-09 | 1991-07-09 | Manufacturing method of viscose staple fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032489C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094158C (en) * | 2001-07-27 | 2002-11-13 | 宜宾丝丽雅股份有限公司 | Once coagulating bath type prodn. of flat viscose fiber and its prpen. method |
| CN1100791C (en) * | 1997-02-25 | 2003-02-05 | 阿科蒂斯凯尔海姆有限公司 | Method for viscose production |
| CN102154721A (en) * | 2011-03-02 | 2011-08-17 | 山东海龙股份有限公司 | Short-process low-energy-consumption production method of bamboo viscose fibers |
| CN102295705A (en) * | 2011-07-04 | 2011-12-28 | 山东雅美科技有限公司 | Method for preparing alkali cellulose by wet pulp method |
| CN102678922A (en) * | 2012-05-31 | 2012-09-19 | 慈溪博格曼密封材料有限公司 | Fiber packing preparation method |
| CN106498527A (en) * | 2016-09-23 | 2017-03-15 | 恒天海龙（潍坊）新材料有限责任公司 | A kind of process for producing high-wet-modulus fibre cellulose fiber |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417764C (en) * | 2006-09-08 | 2008-09-10 | 唐山三友集团化纤有限公司 | Ultrashort viscose fiber in paper making, and manufacturing method |
-
1991
- 1991-07-09 CN CN 91104720 patent/CN1032489C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100791C (en) * | 1997-02-25 | 2003-02-05 | 阿科蒂斯凯尔海姆有限公司 | Method for viscose production |
| CN1094158C (en) * | 2001-07-27 | 2002-11-13 | 宜宾丝丽雅股份有限公司 | Once coagulating bath type prodn. of flat viscose fiber and its prpen. method |
| CN102154721A (en) * | 2011-03-02 | 2011-08-17 | 山东海龙股份有限公司 | Short-process low-energy-consumption production method of bamboo viscose fibers |
| CN102154721B (en) * | 2011-03-02 | 2012-10-03 | 山东海龙股份有限公司 | Short-process low-energy-consumption production method of bamboo viscose fibers |
| CN102295705A (en) * | 2011-07-04 | 2011-12-28 | 山东雅美科技有限公司 | Method for preparing alkali cellulose by wet pulp method |
| CN102678922A (en) * | 2012-05-31 | 2012-09-19 | 慈溪博格曼密封材料有限公司 | Fiber packing preparation method |
| CN102678922B (en) * | 2012-05-31 | 2015-01-28 | 慈溪博格曼密封材料有限公司 | Fiber packing preparation method |
| CN106498527A (en) * | 2016-09-23 | 2017-03-15 | 恒天海龙（潍坊）新材料有限责任公司 | A kind of process for producing high-wet-modulus fibre cellulose fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032489C (en) | 1996-08-07 |
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