CN1519400A - Technique for preparing sea-island shortr fiber of composite polyethylene fiber and polyanide fiber - Google Patents
Technique for preparing sea-island shortr fiber of composite polyethylene fiber and polyanide fiber Download PDFInfo
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- CN1519400A CN1519400A CNA031390293A CN03139029A CN1519400A CN 1519400 A CN1519400 A CN 1519400A CN A031390293 A CNA031390293 A CN A031390293A CN 03139029 A CN03139029 A CN 03139029A CN 1519400 A CN1519400 A CN 1519400A
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Abstract
A composite islands-in-sea acetopolyamide staple is prepared from PA6 and LDPE through drying, proportionally mixing, screw extruding to become spinnable molten mixture, filter, cooling to obtain primary fibres, oiling, stretching, coiling and shrink-setting.
Description
(1) technical field
The invention belongs to a kind of chemical fibre production technology, specifically is a kind of differential staple fibre production technology, the compound sea-island staple fiber production technology of especially a kind of second brocade.
(2) background technology
About 6,000,000 tons of China's year production capacity of chemical fibre, development along with society, people's living standard improves day by day, demand to leather and fur products is also increasing, for remedying the undersupply of natural leather, last century, the eighties people just became artificial leather with polyamide, polyester staple fiber through the acupuncture processed, were used for the manufacturing of footwear industry, clothes and furniture.But because of the short fiber production process restriction, the artificial leather base fabric is too big (if fiber number is less than below the 1.0dtex because of used fibre number, fiber is subjected to extraneous tension force traction and ruptures in the postorder process, do not reach the spinning purpose), so fiber tangles a little few in the pinprick reinforcement process, cause in the postorder process, causing lamination, do not reach the synthetic leather desired effects, and rough surface can appear in final products, feel is not soft, and shortcomings such as gas permeability difference exist a world of difference with natural leather, can only pace up and down in the low grade products field, hinder the development of synthetic leather cause.
(3) goal of the invention
The objective of the invention is the technical solution problem, provide the second brocade compound sea-island staple fiber production technology.
(4) technical scheme
The compound sea-island staple fiber production technology of second brocade, (1), extrusion spinning---the PA6 section is put into storage vat in order to batch mixing, or directly drop in the blender and mix with LDPE, mixed raw material is poured stock chest into, by negative pressure suction device raw material is sucked in the extruder hopper then, hybrid slicing enters screw extruder by deadweight by hopper, become to possess the blend melt of spinning property through extrusion molten, melt filters after conveyance conduit enters measuring pump through filter, and each filament spinning component spinning is given in pumping after the accurate measurement respectively; (2), cooling---by cooling blower to cooling device control wind-warm syndrome, blast, wind speed make the as-spun fibre orientation, quantitatively, decide matter and cool off; (3), oil bath, drawing-off---as-spun fibre enters the I drawing machine through an oiling device through godet roller, creel, tow enters I oil bath, II drawing machine successively then, reenters II oil bath, III drawing machine through the fiber after the drawing-off; (4), curl---fiber after the drawing-off through the secondary oiling device, bring together and enter the I crimping machine after frame is received the width of cloth; (5), relaxation heat setting---the tow behind the cans is through pendulum wire machine, heat setting machine typing, and the fiber after the typing enters cutting machine through tension bracket adjustment tow degree of tightness state, and cut staple is shaped through sending cotton blower fan wind to deliver to the baling press packing.
(5) advantage:
Advantage of the present invention is: solved technical problem, provide a kind of second brocade compound sea-island staple fiber production technology, this automation technolo degree height, and the sea-island staple fiber that goes out with this explained hereafter is behind pinprick reinforcement, through certain chemical treatment, molten remove marine facies, island mutually just boundling become Su shape superfine fibre to be distributed in the synthetic leather base cloth, pencil collagenous fibres in the similar corium, complexing density surpasses the density structure of natural corium.
(6) description of drawings:
Below in conjunction with accompanying drawing the present invention is elaborated.
Accompanying drawing 1 and accompanying drawing 2 are the compound sea-island staple fiber technological process of production figure of second brocade, and the M point among Fig. 1 is connected with N point flange among Fig. 2.
In conjunction with Fig. 1, Fig. 2. This compound island of second brocade short fiber production process:
Process units: high-order hopper 1, rotary drum 2, vacuum desiccator 3, vavuum pump 4, Steam unit 5, storage vat 6, blender 7, stock chest 8, device for suction material 9, screw rod squeeze Press 10, fondant filter 11, measuring pump 12, spinneret 13, cooling device 14, Oiling device 15, godet 16, creel 17, I drafting machine 18, I oil bath 19, II drafting machine 20, II oil bath 21, III drafting machine 22, secondary oiling device 23, receipts Bundle frame 24, I crimping machine 25, tension bracket 26, II crimping machine 27, yarn swaying machine 28, heat Forming machine 29, relaxation heat setting tension bracket 30, cutting machine 31, send cotton blower fan 32, beat Wrap molding machine 33, biphenyl heater 34, cooling blower 35, conveyance conduit 36.
The technological process of production:
(1), drying---the PA6 section is added in the rotary drum 2 through high-order hopper 1, open Open steam unit 5 and in rotary drum 2, pass into 0.3-0.5MPa steam, make in the rotary drum 2 Temperature reaches 110-130 ℃, starts simultaneously vavuum pump 4, vacuum desiccator 3, makes rotary drum Pressure in 2 reaches-0.08-0.1Mpa, and be 3-5 hour the duration of runs of rotary drum 2; Make PA6 in rotary drum 2, carry out sufficient heat exchange;
(2), extrusion spinning---dry good PA6 section is put into storage vat 6 and is prepared against Batch mixing, or directly drop in the blender 7 and mix with LDPE, PA6 and LDPE's is mixed The composition and division in a proportion example is 40-60/60-40, and mixing time is 3-5min, and mixed raw material falls Enter stock chest 8, by negative-pressure suction device 9 raw material is sucked in the extruder hopper then, mixed Close section and enter screw extruder 10 by deadweight by hopper, become to possess and to spin through extrusion molten The mixed melt of performance, three sections of screw extruders 10 minutes, the feed zone temperature is 80-130 ℃, the compression section temperature is 260-285 ℃, the metering section temperature is 260-280 ℃, melt 11 filtrations enter measuring pump 12 by pipeline through filter, and accurate measurement is by defeated respectively Send pipeline 36 pumpings to give spinneret 13 spinning in each filament spinning component, the filter screen of filter 11 Be the 80-100 order, temperature is 260-285 ℃, and adopts continous way to switch pressure Switch during for 120-160bar, the revolution of measuring pump 12 is 15-20r/min, carries Pipeline 36, measuring pump 12, spinning manifold heat with biphenyl device 34, and temperature is 260-280 ℃, spinneret 13 temperature in the filament spinning component are 260-280 ℃, and its specification is: Plate hole diameter 0.3-0.5mm, vertical, horizontal pitch-row 2-3mm;
(3), cooling---by cooling blower 35 control cooling devices 14 wind-warm syndrome, blast, Make the as-spun fibre orientation, quantitatively, decide matter and cool off, wind-warm syndrome is 20-36 ℃, blast is 15-176bar, the air port aperture is 30-70%;
(4), oil bath, drawing-off---as-spun fibre is through an oiling device 15, last oil mass＞10%, oil concentration is 5-8%, through guide wire apparatus 16, creel 17 enters I drawing machine 18, this drawing machine does not heat, tow enters I oil bath 19 successively then, II drawing machine 20, the oil bath temperature of I oil bath 19 is 70-90 ℃, oil concentration is 3-5%, the heating-up temperature of II drawing machine 20 is 70-80 ℃, I, II drawing machine 18,20 drafting multiple is 2-3 times, reenters II oil bath 21 through the fiber after the drawing-off, III drawing machine 22, the oil bath temperature of II oil bath 21 are 70-90 ℃, oil concentration is 3-5%, II, the drafting multiple of III drawing machine is 3-5 times;
(5), curl---fiber after the drawing-off through secondary oiling device 23, bring together and enter I crimping machine 25 after frame 24 is received the width of cloth, it is 70-90 ℃ that the preceding tow that curls gives hot temperature, crimping roller pressure is 0.2-0.5MPa, dodge gate pressure is 0.05-0.3MPa, crispation number is 5-10/cm, according to the final products requirement, fiber after once curling carries out secondary coil through tow tension frame 26 and II crimping machine 27, crimping roller pressure is 0.2-0.5Mpa in the secondary coil, dodge gate pressure is 0.1-0.3Mpa, and crispation number is 7-15/cm;
(6), relaxation heat setting---the tow behind the cans is through pendulum wire machine 28, heat setting machine 29 typings, setting temperature is 95-105 ℃, shaping time is 5-8min, fiber after the typing is adjusted tow degree of tightness state through tension bracket 30, enter cutting machine 31, shearing length is 38-102mm, and compressed air is 0.3-0.7MPa, and cut staple is shaped through sending cotton blower fan 32 wind to deliver to baling press 33 packings.
If PA6 section moisture content can save drying process less than 500PPM.
(7) embodiment:
(1), drying---the PA6 section is added in the rotary drum 2 through high-order hopper 1, open steam unit 5 and in rotary drum 2, feed 0.45MPa steam, make the temperature in the rotary drum 2 reach 120 ℃, start vavuum pump 4, vacuum desiccator 3 simultaneously, vacuum in the rotary drum 2 is reached-0.096Mpa, and be 4 hours the duration of runs of rotary drum 2; Make PA6 in rotary drum 2, carry out sufficient heat exchange;
(2), extrusion spinning---dry good PA6 section is put into storage vat 6 in order to batch mixing, or directly drop in the blender 7 and mix with LDPE, the mixed proportion of PA6 and LDPE is 55/45, mixing time is 4min, mixed raw material is poured stock chest 8 into, by negative pressure suction device 9 raw material is sucked in the extruder hopper then, hybrid slicing enters screw extruder 10 by deadweight by hopper, become to possess the blend melt of spinning property through extrusion molten, screw extruder three sections heating in 10 fens, the feed zone temperature is 100 ℃, the compression section temperature is 275 ℃, the metering section temperature is 270 ℃, melt filters after pipeline enters measuring pump 12 through filter 11, each filament spinning component spinning is given in pumping after the accurate measurement respectively, conveyance conduit 36, measuring pump 12, spinnerets 13 usefulness biphenyl devices 34 heating-up temperatures are 270 ℃ in the filament spinning component, the filter screen of filter 11 is 90 orders, temperature is 275 ℃, and adopt continous mode to switch, and pressure switches during for 150bar, and the revolution of measuring pump 12 is 10r/min, spinnerets 13 in the filament spinning component, its specification is: plate hole diameter 0.3mm, and vertical, transverse holes is apart from 2mm;
(3), cooling---side-blown blower fan 35 control cooling devices 14, wind-warm syndrome is 28 ℃, blast is 16bar, the air port aperture is 40%, make the as-spun fibre orientation, quantitatively, decide matter and cool off;
(4), oil bath, drawing-off---as-spun fibre is through an oiling device 15, last oil mass 15%, oil concentration is 7%, through guide wire apparatus 16, creel 17 enters I hauling machine 18, this drawing machine does not heat, tow enters I oil bath 19 successively then, II drawing machine 20, the oil bath temperature of I oil bath 19 is 80 ℃, oil concentration is 4%, the heating-up temperature of II drawing machine 20 is 75 ℃, I, II drawing machine 18,20 drafting multiple is 2.5 times, reenters II oil bath 21 through the fiber after the drawing-off, III drawing machine 22, the oil bath temperature of II oil bath 21 are 80 ℃, oil concentration is 4%, II, the drafting multiple of III drawing machine is 4 times;
(5) fiber after the drawing-off through secondary oiling device 23, bring together and enter I crimping machine 25 after frame 24 is received the width of cloth, it is 75 ℃ that the preceding tow that curls gives hot temperature, crimping roller pressure is 0.3MPa, dodge gate pressure is 0.2MPa, crispation number is 6/cm, enters II crimping machine 27 through the fibre bundle after curling for the first time through tension bracket 26 and carries out secondary coil, and crimping roller pressure is 0.3MPa, dodge gate pressure is 0.2MPa, 8/cm of crispation number;
(6), relaxation heat setting---the tow behind the cans is through pendulum wire machine 28, heat setting machine 29 typings, setting temperature is 100 ℃, shaping time is 6min, fiber after the typing is adjusted tow degree of tightness state through tension bracket 30, enter cutting machine 31, shearing length is 51mm, and compressed air is 0.5MPa, and cut staple is shaped through sending cotton blower fan 32 wind to deliver to baling press 33 packings.
Claims (3)
1, the compound sea-island staple fiber production technology of a kind of second brocade is characterized in that:
(1), extrusion spinning---the PA6 section is put into storage vat (6) in order to batch mixing, or directly drop in the blender (7) and mix with LDPE, mixed raw material is poured stock chest (8) into, by negative pressure suction device (9) raw material is sucked in the extruder hopper then, hybrid slicing enters screw extruder (10) by deadweight by hopper, become to possess the blend melt of spinning property through extrusion molten, melt filters after pipeline enters measuring pump (12) through filter (11), and each filament spinning component spinning is given in pumping after the accurate measurement respectively;
(2), cooling---by cooling blower (35) to cooling device (14) control wind-warm syndrome, blast, wind speed make the as-spun fibre orientation, quantitatively, decide matter and cool off;
(3), oil bath, drawing-off---as-spun fibre is through an oiling device (15), enter I drawing machine (18) through godet roller (16), creel (17), tow enters I oil bath (19), II drawing machine (20) successively then, reenters II oil bath (21), III drawing machine (22) through the fiber after the drawing-off;
(4), curl---fiber after the drawing-off through secondary oiling device (23), bring together and enter I crimping machine (25) after frame (24) is received the width of cloth;
(5), relaxation heat setting---the tow behind the cans is through pendulum wire machine (28), heat setting machine (29) typing, fiber after the typing is adjusted tow degree of tightness state through tension bracket (30), enter cutting machine (31), cut staple is shaped through sending cotton blower fan (32) wind to deliver to baling press (33) packing.
2, the compound sea-island staple fiber production technology of second brocade according to claim 1 is characterized in that:
(1), the mixed proportion of PA6 and LDPE is 40-60/60-40, mixing time is 3-5min, and screw extruder (10) divides three sections, and the feed zone temperature is 80-130 ℃, the compression section temperature is 260-285 ℃, the metering section temperature is 260-280 ℃, and the filter screen of filter (11) is the 80-100 order, and temperature is 260-285 ℃, and adopt continous mode to switch, pressure switches during for 120-160bar, and measuring pump (12) temperature is 260-280 ℃, and revolution is 5-20r/min;
(2), cooling blower (35) wind-warm syndrome that flows to cooling device (14) is 20-36 ℃, blast is 12-20bar, the air port aperture is 30-70%;
(3), last oil mass＞10% of oiling device (15), oil concentration is 5-8%, II drawing machine (20) heating-up temperature is 70-80 ℃, the drafting multiple of I, II drawing machine (18), (20) is 2-3 times, the drafting multiple of II, III drawing machine (20), (22) is 3-5 times, the oil bath temperature of I oil bath (19) is that 70-90 ℃, oil concentration are 3-5%, and the oil bath temperature of II oil bath (21) is that 70-90 ℃, oil concentration are 3-5%;
(4) to give hot temperature be 70-90 ℃ to tow before I crimping machine (25) curled, and crimping roller pressure is 0.2-0.5MPa, and dodge gate pressure is 0.05-0.3MPa, and crispation number is 5-10/cm;
(5), the setting temperature of heat setting machine (29) is 95-105 ℃, shaping time is 5-8min, the shearing length of cutting machine (31) is 38-102mm, compressed air is 0.3-0.7MPa.
3, the compound sea-island staple fiber production technology of second brocade according to claim 2 is characterized in that:
(1), the spinnerets (13) in the filament spinning component, its specification is: plate hole diameter 0.3-0.5mm, vertical, horizontal pitch-row 2-3mm, temperature is 260-280 ℃.
(2), raw material PA6[η] be 2.5-3.2, LDPE ρ is 0.90-0.96.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031390293A CN1519400A (en) | 2003-09-02 | 2003-09-02 | Technique for preparing sea-island shortr fiber of composite polyethylene fiber and polyanide fiber |
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| CNA031390293A CN1519400A (en) | 2003-09-02 | 2003-09-02 | Technique for preparing sea-island shortr fiber of composite polyethylene fiber and polyanide fiber |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562248A (en) * | 2015-01-22 | 2015-04-29 | 张家港市荣昌涤纶毛条有限公司 | Dacron conductive wool top production technology |
| CN104562247A (en) * | 2015-01-22 | 2015-04-29 | 张家港市荣昌涤纶毛条有限公司 | Dacron anti-radiation wool top production technology |
| CN112538661A (en) * | 2020-11-18 | 2021-03-23 | 江苏盛恒化纤有限公司 | Black sea island network yarn processing technology |
| CN114737287A (en) * | 2022-05-24 | 2022-07-12 | 唐山市丰南区金翔化纤有限公司 | Fold silk platform that curls |
-
2003
- 2003-09-02 CN CNA031390293A patent/CN1519400A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562248A (en) * | 2015-01-22 | 2015-04-29 | 张家港市荣昌涤纶毛条有限公司 | Dacron conductive wool top production technology |
| CN104562247A (en) * | 2015-01-22 | 2015-04-29 | 张家港市荣昌涤纶毛条有限公司 | Dacron anti-radiation wool top production technology |
| CN112538661A (en) * | 2020-11-18 | 2021-03-23 | 江苏盛恒化纤有限公司 | Black sea island network yarn processing technology |
| CN114737287A (en) * | 2022-05-24 | 2022-07-12 | 唐山市丰南区金翔化纤有限公司 | Fold silk platform that curls |
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