CN104278344A - Production technology of semi-dull trilobal FDY polyester fiber - Google Patents
Production technology of semi-dull trilobal FDY polyester fiber Download PDFInfo
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- CN104278344A CN104278344A CN201310285444.XA CN201310285444A CN104278344A CN 104278344 A CN104278344 A CN 104278344A CN 201310285444 A CN201310285444 A CN 201310285444A CN 104278344 A CN104278344 A CN 104278344A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a production technology of semi-dull trilobal FDY polyester fiber. An FDY one-step method is adopted for production, semi-full slices are pre-crystallized and dried till the water content of the slices is smaller than or equal to 20 ppm, the slices are melted and extruded through a screw extruder, spinning is performed with a triangular orifice spinneret plate, the spinning temperature ranges from 290 DEG C to 295 DEG C, nascent fiber obtained after spinning is annularly blown to be cooled, the wind temperature ranges from 26 DEG C to 30 DEG C, the wind speed ranges from 0.3 m/s to 0.5 m/s, and then nozzle oiling, stretching setting, netting and winding forming are sequentially carried out. Through the production technology, while the product quality is improved, the production difficulty can be obviously reduced, and the product performance is improved. With the method, broken ends and broken filaments are reduced, the spinnability and the production efficiency can be improved, the product quality is improved, the product cost is reduced, and labor is saved.
Description
Technical field:
The present invention relates to a kind of production technology of terylene semi-dull triangle profile FDY fiber.
Technical background:
For broad masses of the people, along with improving constantly of living standard, more urgent to the textiles demand of profiled filament processing, for chemical fiber factory, because production capacity of chemical fibre and scale constantly expand in recent years, polyester conventional variety production capacity surplus, Market competition, product price constantly decline, the performance of enterprises constantly reduces, and the fibre in differentiation that therefore developing target market is badly in need of is the only way of improving product competitiveness in the market and improving added value.At present, the profiled filament major part of domestic weaving is all depend on import.Only develop the fibre in differentiation come in every shape to establish oneself in an unassailable position on domestic and international market increasingly with keen competition, could to winning more client.
Triangle profile polyester FDY fiber is development in recent years a kind of fibre in differentiation rapidly, as high-tech textile raw material a kind of in synthetic fiber, at present at garment industry, achieve great success, with the fabric of such fiber weaving, there is soft, the feature such as bulkiness, drapability are good, stain resistance is strong, anti-fuzz balls ability, added value of product is higher, has wide market prospects and good economic benefit.Also have a lot of producer at present both at home and abroad in production, production line employing FDY one-step method, having of POY-DTY two step method, total production technology trend is ripe, but often finds lousiness and breakage phenomena in production process in practice, wherein has a lot of reasons to cause.
Summary of the invention:
The object of the invention is to for triangle profile polyester FDY fiber high to spinning technique requirement in process of production, easily break end in production, produce lousiness, production difficulty strengthens, affect the technical problem of aft-loaded airfoil performance, a kind of production technology of terylene semi-dull triangle profile FDY fiber is provided.
First this production technology is control pre-crystallized and baking temperature well, makes section moisture content in claimed range, under the prerequisite improving spinnability, selects rational spinning temperature, cooling quench is selected rational blast.Regulate spinning tension in rational region, optimize drawing process, improve dyeing uniformity.
Object of the present invention is achieved through the following technical solutions:
A kind of production technology of terylene semi-dull triangle profile FDY fiber, FDY one-step method is adopted to produce, section moisture content≤20ppm is dried to by pre-crystallized for semi-dulling chips, melt extrude through screw extruder, adopt tri-angle-holed spinnerets to carry out spinning, spinning temperature is 290 ~ 295 DEG C, the as-spun fibre ring quenching that spinning is obtained, wind-warm syndrome is 26 ~ 30 DEG C, and wind speed is 0.3 ~ 0.5m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding.
Described pre-crystallized temperature is 168 ~ 172 DEG C, and the described pre-crystallized time is 20 ~ 24min, and the temperature of described drying is 180 ~ 184 DEG C, and the time of described drying is 8 ~ 10h.
Described spinning temperature is preferably 291 ~ 292 DEG C.
Described tri-angle-holed draw ratio L/R is 2.2.
The oil applying rate that described oil nozzle oils is 2% ~ 3%.
Add preservative agent in the finish that above-mentioned oil nozzle uses when oiling, the mass percentage concentration of described preservative agent in finish is 0.8 ‰ ~ 1 ‰.
Described screw extruder screw rod each district temperature is: 274 ~ 276 DEG C, a district, 279 ~ 281 DEG C, 2nd district, 285 ~ 287 DEG C, 3rd district, 287 ~ 289 DEG C, 4th district, 289 ~ 291 DEG C, 5th district, 291 ~ 293 DEG C, 6th district.
The production of shaped filaments to the uniform drying of section and water content requirement all high than conventional fibre, need to strengthen drying condition, and spinning temperature is higher than conventional fibre.Melt will be made into the spun filament with triangular-section through special spinnerets through cooling, spinnerets adopts triangle pore spinnerets, existing technique mostly all adopts lateral blowing mode on cooling quench, but lateral blowing is for perforated sectional silk, and cooling can be uneven.Therefore present invention process adopts ring blowing mode.
Select the section of high-quality, guarantee pre-crystallized abundant with drying, increase the pre-crystallized time, suitably improve crystallization and baking temperature, improve section drying process, make chip drying abundant, reduction moisture content, guarantees that drying condition reaches technological requirement.Final control section moisture content≤20PPM, improves spinnability.
Suitable raising spinning temperature, but unsuitable too high, controls at 291 ~ 292 DEG C more satisfactory, makes that broken end is relative with the generation of lousiness to be reduced while taking into account degree of profile.Have employed tri-angle-holed spinnerets, design rational hole shape L/R, increase the degree of profile of shaped filaments, employing L/R is the triangle spinneret orifice spinnerets of 2.2.Adopt ring cold wind blower, provide a good cooler environment, tow is fully cooled.Employing oil nozzle oils, in finish, add preservative agent, improves the convergence of silk and antistatic behaviour, and preservative agent is the problem such as can solve the rotten fermentation of the product caused because of bacteriological infection, mouldy and bacterial population exceeds standard, and extends finish useful life.And adopt FDY one-step method to produce, guaranteeing in the product situation producing excellent quality, reducing the appearance of broken end, lousiness, reducing production cost, improve production efficiency.
Raw material involved in the present invention unless otherwise indicated, is all bought by market and is obtained.
Beneficial effect of the present invention:
Production technology of the present invention, while improving the quality of products, significantly can reduce production difficulty, enhance product performance.
Method of the present invention decreases the appearance of broken end, lousiness, improves spinnability and production efficiency, improves the quality of products, and reduces product cost, saves labour.Break end in conventional production process occurrence rate 15% ~ 18%, uses production technology lousiness of the present invention, end breakage rate is 5% ~ 8%.
Detailed description of the invention:
Production equipment and instrument: German BM formula drying machine, twin (double) screw extruder, German Ba Mage spinning, stretching, up-coiler, spinnerets (tri-angle-holed spinnerets, hole shape L/R is 2.2).
Raw material: semi-dulling chips (Sinopec Yizheng Fiber Optical plant, SB500), finish F-1048, preservative agent (Japan, bamboo is originally)
Embodiment 1: adopt FDY One-step production terylene semi-dull triangle profile FDY fiber
FDY one-step method is adopted to produce: by semi-dulling chips at 170 DEG C of pre-crystallized 22min, section moisture content≤20ppm is dried at 182 DEG C of dry 9h, melt extrude through screw extruder, screw rod each district temperature is: 275 DEG C, a district, 280 DEG C, 2nd district, 286 DEG C, 3rd district, 288 DEG C, 4th district, 290 DEG C, 5th district, 292 DEG C, 6th district.Tri-angle-holed spinnerets is adopted to carry out spinning, the hole shape L/R of described tri-angle-holed spinnerets is 2.2, spinning temperature is 292 DEG C, the as-spun fibre ring quenching that spinning is obtained, wind-warm syndrome is 27 DEG C, wind speed is 0.4m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding, and winding speed is 4300m/min.
The oil applying rate that described oil nozzle oils is 2.1%.
Add preservative agent in the finish that described oil nozzle uses when oiling, the mass percentage concentration of described preservative agent in finish is 0.9 ‰.
The detailed technological process of production is: semi-dulling chips → feeding → pre-crystallized → drying → screw extruder → prefilter → casing pipeline → measuring pump → filament spinning component → ring dries → oils → pre-network → the first hot-rolling → the second hot-rolling → master network → winding shaping → and knit socks and sentence look → physical index and detect → packaging warehouse-in
When producing terylene semi-dull triangle profile FDY fiber, the quality of semi-dulling chips moisture content to spinning process and finished silk has a strong impact on.So the drying control of section requires high than conventional fibre, section generation thermal degradation, hydrolysis can not be made in dry run, section can not be made again at high temperature to occur solid phase polycondensation and increase glutinous, prevent the large degree of profile affecting strand of slicing characteristics viscosity fluctuation.Actual process controls pre-crystallization temperature and most preferably is 170 DEG C, and baking temperature most preferably is 182 DEG C, and drying time, 9h, made section moisture content be no more than 20ppm.Add the drying time of section, suitably reduce crystallization and baking temperature, make dry section moisture content meet explained hereafter requirement.
Melt will be made into the spun filament with triangular-section through spinnerets through cooling, spinnerets adopts triangle pore spinnerets, existing technique mostly all adopts lateral blowing mode on cooling quench, but lateral blowing is for perforated sectional silk, and cooling can be uneven.Therefore present invention process adopts ring blowing mode.
Select the section of high-quality, guarantee pre-crystallized abundant with drying, reduce moisture content, guarantee that drying condition reaches technological requirement.Final control section moisture content is no more than 20PPM, improves spinnability.
Suitable raising spinning temperature, is conducive to improving the mobile performance of melt, improves spinnability, but unsuitable too high, controls at 291 ~ 292 DEG C more satisfactory, makes that broken end is relative with the generation of lousiness to be reduced while taking into account degree of profile.Have employed tri-angle-holed spinnerets, design rational hole shape L/R, increase the degree of profile of shaped filaments, employing L/R is the triangle spinneret orifice spinnerets of 2.2.Adopt ring cold wind blower, provide a good cooler environment, tow is fully cooled.Employing oil nozzle oils, in finish, add preservative agent, improves convergence and the antistatic behaviour of silk, and adopt FDY one-step method to produce, guaranteeing in the product situation producing excellent quality, reducing the appearance of broken end, lousiness, reduce production cost, improve production efficiency.
Relax cooling condition, ensure that the cooling of every rhizoid is homogeneous, improve spinnability and the product physical index of strand.Cooling quench adopts ring blowing mode.Under the prerequisite improving spinnability, find out a rational spinning temperature and lateral blowing wind speed and wind-warm syndrome by constantly putting into practice, wind-warm syndrome is 26 ~ 30 DEG C, and wind speed is 0.3 ~ 0.5m/s, and the present embodiment adopts wind-warm syndrome to be 27 DEG C, and wind speed is 0.4m/s.
Because TRIANGLE PROFILE specific area is greater than circular wire, poor to finish adsorptivity, suitably should improve the oil content of tow, but can not be too high, fiber can be made easily to skid when aft-loaded airfoil, and roller of having mercy on during spinning is serious, find the oil applying rate that suitable, oil evenly, actual strand oil applying rate controls 2% ~ 3% optimum, and the present embodiment oil applying rate is 2.1%.The selection of draw ratio is very larger than impact on the thickness of fiber, and will select suitable draw ratio and coiling temperature when reeling, draw ratio during set-stretching is 1.78.
The processing parameter of table 1 terylene semi-dull triangle profile FDY fiber
| Project name | Technical indicator | Project name | Technical indicator |
| Pre-crystallization temperature/DEG C | 170 | Lateral blowing rheumatism/% | 65±5 |
| Pre-crystallized time/min | 22 | Oil applying rate/% | 2.1 |
| Baking temperature/DEG C | 182 | GR 1Speed/m.min -1 | 2250 |
| Drying time/h | 9 | GR 1Temperature/DEG C | 90 |
| Pressure/MPa after filter | 11 | GR 2Temperature/DEG C | 155 |
| Assembly initial pressure/MPa | 15 | Draw ratio | 1.78 |
| Biphenyl temperature/DEG C | 292 | Over feed rate(OFR)/% | 3.2 |
| Lateral blowing wind-warm syndrome/DEG C | 27 | Winding angle/° | 5.9 |
| Lateral blowing wind speed/m.s -1 | 0.4 | Winding speed/m.min -1 | 4300 |
The physical index of the terylene semi-dull triangle profile FDY fiber that table 2 is produced
| Project name | Measured value |
| Spinning temperature | 292℃ |
| Line density/dtex | 43.5 |
| Extension at break/% | 23.2 |
| Boiling water shrinkage/% | 6.3 |
| Oil content/% | 2.1 |
| Dyeing all with spend | 4 |
| Excellence rate | ≥92% |
Production technology of the present invention is being guaranteed in the product situation producing excellent quality, reduces the appearance of broken end, lousiness, and reduce production cost, improve production efficiency, production process is more stable.The broken end occurrence rate of existing production technology is 15%, and the inventive method lousiness, end breakage rate are 6%.
Claims (7)
1. the production technology of a terylene semi-dull triangle profile FDY fiber, FDY one-step method is adopted to produce, it is characterized in that: be dried to section moisture content≤20ppm by pre-crystallized for semi-dulling chips, melt extrude through screw extruder, adopt tri-angle-holed spinnerets to carry out spinning, spinning temperature is 290 ~ 295 DEG C, the as-spun fibre ring quenching that spinning is obtained, wind-warm syndrome is 26 ~ 30 DEG C, and wind speed is 0.3 ~ 0.5m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding.
2. production technology according to claim 1, it is characterized in that described pre-crystallized temperature is 168 ~ 172 DEG C, the described pre-crystallized time is 20 ~ 24min, and the temperature of described drying is 180 ~ 184 DEG C, and the time of described drying is 8 ~ 10h.
3. production technology according to claim 1, is characterized in that described spinning temperature is 291 ~ 292 DEG C.
4. production technology according to claim 1, is characterized in that described tri-angle-holed draw ratio L/R is 2.2.
5. production technology according to claim 1, is characterized in that the oil applying rate that described oil nozzle oils is 2% ~ 3%.
6. production technology according to claim 1 or 5, add preservative agent in the finish used when it is characterized in that oil nozzle oils, the mass percentage concentration of described preservative agent in finish is 0.8 ‰ ~ 1 ‰.
7. production technology according to claim 1, is characterized in that described screw extruder screw rod each district temperature is: 274 ~ 276 DEG C, a district, 279 ~ 281 DEG C, 2nd district, 285 ~ 287 DEG C, 3rd district, 287 ~ 289 DEG C, 4th district, 289 ~ 291 DEG C, 5th district, 291 ~ 293 DEG C, 6th district.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310285444.XA CN104278344A (en) | 2013-07-05 | 2013-07-05 | Production technology of semi-dull trilobal FDY polyester fiber |
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| CN201310285444.XA CN104278344A (en) | 2013-07-05 | 2013-07-05 | Production technology of semi-dull trilobal FDY polyester fiber |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831375A (en) * | 2015-04-28 | 2015-08-12 | 苏州如盛化纤有限公司 | Dull polyester FDY (fully drawn yarn) slub filament yarn and production method thereof |
| CN105064029A (en) * | 2015-07-31 | 2015-11-18 | 江苏恒科新材料有限公司 | Ultra-bright polyester DTY fibers and preparation method thereof |
| CN108286079A (en) * | 2018-02-05 | 2018-07-17 | 陆松民 | A kind of high intensity item does uniform mono- steps of polyester monofilament FDY and spins preparation process |
| CN108588867A (en) * | 2018-05-11 | 2018-09-28 | 常熟涤纶有限公司 | A kind of preparation process of dacron ultrafine fiber |
| CN109440205A (en) * | 2018-10-19 | 2019-03-08 | 常熟涤纶有限公司 | A kind of preparation process of high-strength polyester fine denier profiled silk |
| CN110565180A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester super-dull flat yarn |
| CN111218741A (en) * | 2019-12-23 | 2020-06-02 | 苏州君辉纺织有限公司 | Preparation process of DTY (draw textured yarn) plied yarn with special luster |
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| CN2517759Y (en) * | 2001-12-11 | 2002-10-23 | 上海第十化学纤维厂 | Finspun positive triangle shape Dacron short fiber spinneret plate |
| CN102031575A (en) * | 2010-12-30 | 2011-04-27 | 张家港市欣欣化纤有限公司 | Method for preparing superfine denier flat terylene drawn yarn |
| CN102586939A (en) * | 2012-03-06 | 2012-07-18 | 江苏天地化纤有限公司 | Profiled fire-retardant bright terylene FDY (Fully Drawn Yarn) filament and production process thereof |
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| US5487859A (en) * | 1986-01-30 | 1996-01-30 | E. I. Du Pont De Nemours And Company | Process of making fine polyester hollow filaments |
| CN2517759Y (en) * | 2001-12-11 | 2002-10-23 | 上海第十化学纤维厂 | Finspun positive triangle shape Dacron short fiber spinneret plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831375A (en) * | 2015-04-28 | 2015-08-12 | 苏州如盛化纤有限公司 | Dull polyester FDY (fully drawn yarn) slub filament yarn and production method thereof |
| CN105064029A (en) * | 2015-07-31 | 2015-11-18 | 江苏恒科新材料有限公司 | Ultra-bright polyester DTY fibers and preparation method thereof |
| CN105064029B (en) * | 2015-07-31 | 2017-11-03 | 江苏恒科新材料有限公司 | A kind of superbright light polyester DTY fiber and preparation method thereof |
| CN108286079A (en) * | 2018-02-05 | 2018-07-17 | 陆松民 | A kind of high intensity item does uniform mono- steps of polyester monofilament FDY and spins preparation process |
| CN108588867A (en) * | 2018-05-11 | 2018-09-28 | 常熟涤纶有限公司 | A kind of preparation process of dacron ultrafine fiber |
| CN110565180A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester super-dull flat yarn |
| CN109440205A (en) * | 2018-10-19 | 2019-03-08 | 常熟涤纶有限公司 | A kind of preparation process of high-strength polyester fine denier profiled silk |
| CN111218741A (en) * | 2019-12-23 | 2020-06-02 | 苏州君辉纺织有限公司 | Preparation process of DTY (draw textured yarn) plied yarn with special luster |
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