CN1310249A - Production technology of 0.5 dtex superfine polypropylene filament (preoriented yarn-low-elastic yarn) - Google Patents
Production technology of 0.5 dtex superfine polypropylene filament (preoriented yarn-low-elastic yarn) Download PDFInfo
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- CN1310249A CN1310249A CN 01111503 CN01111503A CN1310249A CN 1310249 A CN1310249 A CN 1310249A CN 01111503 CN01111503 CN 01111503 CN 01111503 A CN01111503 A CN 01111503A CN 1310249 A CN1310249 A CN 1310249A
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Abstract
By using special polypropylene material with controllable rheological behavior and through optimized POY-DTY process in high speed spinning condition, superfine denier 0.5 dtex polypropylene filament is produced, which has POY full can rate up to 80%, finished DTY product rate up to 87%, the first grade product rate of 81% and material consumption of 1 to 1.15.
Description
The present invention relates to the production technical field of superfine polypropylene silk, especially the production technology of 0.5dtex superfine polypropylene (pre-oriented yarn-low-stretch yarn) long filament.
At present, the producer of whole nation suitability for industrialized production fine-denier polypropylene filament, what mostly adopt is the production method of POY-DTY section direct fabrics, the filament number of producing is all greater than the super fine denier polypropylene fibre silk of 0.7dtex, and high-speed spinning speed can only reach 2500-2600m/min, if further thin again dawnization, carrying high-speed spinning will occur: the one, and spinning is easily breaked end, and the repiece difficulty; The 2nd, high-speed spinning, high-tenacity form high orientation unstable structure, undrawn yarn retraction bag tube; The 3rd, POY silk structural instability, cause DTY to be prone to tight point and stiff silk man-hour adding, above problem, bring sizable difficulty to spinning process, can not normally produce continuously, can't produce super fine denier polypropylene fibre silk, become the technological difficulties place of the further thin dawnization of restriction polypropylene fibre less than 0.7dtex.
The production technology that the purpose of this invention is to provide 0.5dtex superfine polypropylene (pre-oriented yarn-low-stretch yarn) long filament, main by making the polypropylene dedicated material of controllable rheology, the above polypropylene chip of utilization melt index 30g/10min, under the condition of high-speed spinning, preferred optimal processing parameter, adopt POY-DTY technology, thereby developed out the production technology of 0.5dtex super fine denier polypropylene filament yarn.
The object of the present invention is achieved like this: its technological process is that (modified polypropene section → chip drying → screw extruding melting → melt pre-filtering → spinning manifold → measuring pump → assembly → cross air blasting cooling → nozzle oils → path → the first godet → second godet → high-speed winding → POY silk cylinder → balance POY check → DTY (the hot case heating → drafting false twisting of POY → first → the second hot case thermal finalization → DTY silk cylinder → check that oils → minute grade packaged → finished product warehouse-in) in granulation (plastics grade polypropylene section+modified additive → mixing → melting → Cast Strip → wind cold drying → pelletizing → mixed batch → vibration screening → pulse is carried) → POY.
Technological parameter is: granulation process parameters, twin-screw are extruded and are respectively distinguished temperature: 165-200-250-250-250-240-220-220 ℃; Screw pressure: 2-4Mpa; Auxiliary agent flow: 130-132ml/h; Feeding rotating speed: 10rpm; Screw speed: 700rpm; Blank speed: 800rpm; Raw material: T30S polypropylene.The POY technological parameter is baking temperature: 90-110 ℃; Melt temperature: 268 ℃; Extruder temperature 260-280 ℃; Biphenyl temperature: 270 ℃; Screw pressure: 85bar; Measuring pump rotating speed: 12.26r/min; Lateral blowing: wind speed 0.3m/s; Measuring pump specification: 3.0cc/rev; 18 ℃ of wind-warm syndrome; Finish: TFP-40; Oil dense 12%; Humidity 60%; Godet roller 1 speed: 2650m/min; Winding angle: 5.6 °; Godet roller 2 speed 2640m/min; Winding speed: 2800-3200m/min; Doff time 480min; Spinnerets specification PRB-85 * 96 * 0.25/1.0.The PTY process conditions are process velocity: 350-450m/min; Drafting multiple DR:1.1-1.3; D/Y:1.3-1.4 (homemade PU dish 1-4-1); Temperature: the first hot railway carriage or compartment heating: 120-130 ℃, the second hot railway carriage or compartment heating: 90-110 ℃.
Production process: granulation process is, raw material polypropylene chip and modifier through measuring pump together enter blender mix after, enter twin (double) screw extruder again, through twin-screw extrusion molten, mixing, Cast Strip, by bosh, cold wind drier carries out pelletizing again.Section after the pelletizing enters and mixes batch jar, mixes and criticizes, and enters vibrating screen through star valve then and screens, and removes overlength section and powder, and the modification of using in production section enters the pulse conveyer automatically, and remaining section is packed stand-by; The POY production process is, the modification section enters the pulse conveyer, can deliver to chip bunker respectively through triple valve, enter the fluidisation pre-crystallizer of drying machine through the rotation feeder by deadweight, enter the filling drying then, carry out drying, so that the moisture technological requirement that reaches of cutting into slices is leaned on from reentering screw extruder through the modification section of super-dry, heating, extruding, fusion, after the mixing, melt is through prefilter, the melt distributing pipe enters spinning manifold, is metered into filament spinning component through measuring pump, extrudes from the spinnerets pore and forms the melt thread, the melt thread is by the spinning air regulator, through the lateral blowing cooling curing, oil through nozzle again, form spun filament.Spun filament after oiling enters POY winding part strand through upper and lower two draw-off godets, enters winding head, obtains being orientated line (POY) through high-speed winding, winding speed is 2800-2900m/min, weight of package can be set, the timing doff, and the POY package is sent between balance by dolly behind the doff; The DTY process is, POY after balance, by manually delivering between the spinning wheel of back by the draft false twisting machine, and the POY package is installed on the bobbin cradle, POY is drawn by bobbin cradle, after first roller, primary heater, coldplate, false-twisting device, the second roller draft false twisting, through behind the 2bis roller, enter second and add HEAT SETTING, after the 3rd roller, oiling roller be wound on the bobbin after oiling, obtain drafting false twisting silk (DTY), processing technology speed is 450-550m/min.DTY silk behind the doff is placed on the DTY dolly, and is grade packaged through sampling, quality testing, appearance test, branch, sends into warehouse for finished product after the packing of weighing.
Owing to adopt such scheme, utilize microtomy, the super fine denier third that adopts POY-DTY spinning technique technology successfully to produce filament number≤0.5dtex is taken turns long filament, and the full tube of POY rate reaches 80%; The DTY yield rate reaches 87%, and top-quality product rate is 81%; Raw material consumption is: 1: 1.15.
Claims (4)
1,0.5dtex the production technology of superfine polypropylene (pre-oriented yarn-low-stretch yarn) long filament, it is characterized in that: whole process flow is granulation (plastics grade polypropylene section+modified additive → mixing → fusion → Cast Strip → wind cold drying → pelletizing → mix criticizing → vibration screening → pulse is carried) → POY (modified polypropene section → chip drying → screw rod extrusion molten → melt pre-filtering → spinning manifold → measuring pump → assembly → lateral blowing cooling → nozzle oils → path → first godet roller → second godet roller → high-speed winding → POY silk tube → balance POY check) → DTY (the hot case heating → drafting false twisting of the POY → first → second hot case HEAT SETTING → DTY silk tube → check that oils → minute grade packaged → finished product warehouse-in).
2, the production technology of 0.5dtex superfine polypropylene according to claim 1 (pre-oriented yarn-low-stretch yarn) long filament is characterized in that: granulation process parameters is that double screw extruder is respectively distinguished temperature: 165-200-250-250-250-240-220-220 ℃; Screw pressure: 2-4Mpa; Auxiliary agent flow: 130-132ml/h; Feeding rotating speed: 10rpm; Screw speed: 700rpm; Blank speed: 800rpm; Raw material: T30S polypropylene.
3, the production technology of 0.5dtex superfine polypropylene according to claim 1 (pre-oriented yarn-low-stretch yarn) long filament, it is characterized in that: the POY technological parameter is: baking temperature: 90-110 ℃; Melt temperature: 268 ℃; Extruder temperature: 260-280 ℃; 270 ℃ of biphenyl temperature; Screw pressure: 85bar; Measuring pump rotating speed: 12,26r/min; Lateral blowing: wind speed 0.3m/s; Measuring pump specification: 3.0cc/rev; 18 ℃ of wind-warm syndrome; Finish: TFP-40; Oil dense 12%; Humidity 60%; Godet roller 1 speed: 2650m/min; 5.6 ° of winding angles; Godet roller 2 speed 2640m/min; Winding speed: 2800-3200m/min; Doff time 480min; Spinnerets specification PRB-85 * 96 * 0.25/1.0.
4, the production technology of 0.5dtex superfine polypropylene according to claim 1 (pre-oriented yarn-low-stretch yarn) long filament, it is characterized in that: the PTY technological parameter is process velocity: 350-450m/min; Drafting multiple DR:1.1-1.3; D/Y:1.3-1.4 (homemade PU dish 1-4-1); Temperature: the first hot case heating: 120-130 ℃, the second hot case heating: 90-110 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01111503 CN1310249A (en) | 2001-03-14 | 2001-03-14 | Production technology of 0.5 dtex superfine polypropylene filament (preoriented yarn-low-elastic yarn) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 01111503 CN1310249A (en) | 2001-03-14 | 2001-03-14 | Production technology of 0.5 dtex superfine polypropylene filament (preoriented yarn-low-elastic yarn) |
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| CN1310249A true CN1310249A (en) | 2001-08-29 |
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| CN 01111503 Pending CN1310249A (en) | 2001-03-14 | 2001-03-14 | Production technology of 0.5 dtex superfine polypropylene filament (preoriented yarn-low-elastic yarn) |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303266C (en) * | 2003-05-08 | 2007-03-07 | 中国石化仪征化纤股份有限公司 | Manufacture of high tenacity low-stretch polyester filaments |
| CN100422400C (en) * | 2004-08-10 | 2008-10-01 | 上海太平洋纺织机械成套设备有限公司 | High-strength low-extension polyester staple fiber preparation method |
| CN101634051B (en) * | 2009-06-08 | 2011-06-29 | 江苏华亚化纤有限公司 | Melt direct spinning superfine denier terylene FDY filament and preparation process thereof |
| CN103572391A (en) * | 2012-07-27 | 2014-02-12 | 中浪环保股份有限公司 | Spun polyester pre-oriented yarn production method using recycled polyester bottle chips |
| CN104099678A (en) * | 2014-07-24 | 2014-10-15 | 福建凯邦锦纶科技有限公司 | Novel fine-denier special-shaped-section fiber nylon production technology |
| CN108085762A (en) * | 2016-11-22 | 2018-05-29 | 常州欣战江特种纤维有限公司 | The production method of fine-denier polypropylene DTY fiber is coloured before a kind of spinning |
| CN108085763A (en) * | 2016-11-22 | 2018-05-29 | 常州欣战江特种纤维有限公司 | The production method of the thick denier polypropylene fibre ATY fibers of coloring before a kind of outdoor is spun |
| CN108570721A (en) * | 2018-06-25 | 2018-09-25 | 张家港市金星纺织有限公司 | A kind of preparation facilities of polypropylene fibre |
-
2001
- 2001-03-14 CN CN 01111503 patent/CN1310249A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303266C (en) * | 2003-05-08 | 2007-03-07 | 中国石化仪征化纤股份有限公司 | Manufacture of high tenacity low-stretch polyester filaments |
| CN100422400C (en) * | 2004-08-10 | 2008-10-01 | 上海太平洋纺织机械成套设备有限公司 | High-strength low-extension polyester staple fiber preparation method |
| CN101634051B (en) * | 2009-06-08 | 2011-06-29 | 江苏华亚化纤有限公司 | Melt direct spinning superfine denier terylene FDY filament and preparation process thereof |
| CN103572391A (en) * | 2012-07-27 | 2014-02-12 | 中浪环保股份有限公司 | Spun polyester pre-oriented yarn production method using recycled polyester bottle chips |
| CN104099678A (en) * | 2014-07-24 | 2014-10-15 | 福建凯邦锦纶科技有限公司 | Novel fine-denier special-shaped-section fiber nylon production technology |
| CN108085762A (en) * | 2016-11-22 | 2018-05-29 | 常州欣战江特种纤维有限公司 | The production method of fine-denier polypropylene DTY fiber is coloured before a kind of spinning |
| CN108085763A (en) * | 2016-11-22 | 2018-05-29 | 常州欣战江特种纤维有限公司 | The production method of the thick denier polypropylene fibre ATY fibers of coloring before a kind of outdoor is spun |
| CN108570721A (en) * | 2018-06-25 | 2018-09-25 | 张家港市金星纺织有限公司 | A kind of preparation facilities of polypropylene fibre |
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