CN104278339A - Production technology of polyester FDY bright trilobal yarn - Google Patents
Production technology of polyester FDY bright trilobal yarn Download PDFInfo
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- CN104278339A CN104278339A CN201310282348.XA CN201310282348A CN104278339A CN 104278339 A CN104278339 A CN 104278339A CN 201310282348 A CN201310282348 A CN 201310282348A CN 104278339 A CN104278339 A CN 104278339A
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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
- D01D5/08—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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
-
- 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
-
- 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
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
Abstract
The invention discloses a production technology of polyester FDY bright trilobal yarn. An FDY one-step production process is adopted, and the production process include the steps that bright slices and semi-dull slices are mixed, pre-crystallized and dried till the water content of the slices is smaller than or equal to 25 ppm, the slices are melted and extruded through a screw extruder, spinning is carried with a spinneret plate with Y-shaped spinneret orifices, the spinning temperature ranges from 292 DEG C to 295 DEG C, nascent fiber obtained after spinning is laterally blown to be cooled, the wind temperature is 25 DEG C, the wind speed is 0.5+/-0.01 m/s, and then nozzle oiling, stretching setting, netting and winding forming are sequentially carried out. The method can greatly promote the performance of the trilobal polyester fiber and greatly reduce the production difficulty of the trilobal polyester fiber. While it is guaranteed that products of excellent quality can be produced, broken ends and broken filaments are reduced, and the production cost is reduced.
Description
Technical field:
The invention belongs to spinning field, be specifically related to a kind of production technology of polyester FDY bright trilobal profiled FDY.
Technical background:
Terylene three leaf shaped filaments is development in recent years a kind of fibre in differentiation rapidly, as a kind of high-tech textile raw material in synthetic fiber, at present at garment industry, achieves very large effect.Its cross section is trilobal, has many good characteristics; Its fabric sheen is pleasing, soft comfortable, just as true silk products.The domestic required most dependence on import of shaped filaments, along with the raising of living standards of the people, the demand of textile industry to shaped filaments is more urgent.Therefore, it has wide market prospects and good economic benefit.The mode of production of present shaped filaments is mainly cut into slices and is spun and melt direct spinning two kinds, many employing continuous drying technique is spun in section, 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.Be no matter that section is spun or melt spins last melt out and will be made into the spun filament with trifoil cross-section through special spinnerets through cooling, spinnerets adopts " Y " shape pore spinnerets.Cooling quench mostly adopts lateral blowing mode, and adopts the one-step method generating process route of low speed spinning-high-speed stretch.Because three leaf special polyester FDY fiber require high to spinning technique in process of production, easily break end in existing production process, produce lousiness, the problems such as spinnability is low, and degree of profile is on the low side.And reaching its maturity along with FDY generation technique, client requires more and more extensive to the kind that FDY generates, therefore, be meeting the market requirement, need the production technology providing polyester FDY bright trilobal profiled FDY.Produce polyester FDY bright trilobal profiled FDY, and reduce in production process and easily break end, produce lousiness, the problems such as spinnability is low, and degree of profile is on the low side.
Summary of the invention:
The object of the invention is to the technical problem proposed for background technology: solve three leaf special polyester FDY fiber high to spinning technique requirement in process of production, easily break end in production process, produce lousiness, spinnability is low, and degree of profile is on the low side.A kind of production technology of polyester FDY bright trilobal profiled FDY is provided.
Object of the present invention is achieved through the following technical solutions:
A kind of production technology of polyester FDY bright trilobal profiled FDY, adopt FDY One-step production route, its production process is: be dried to section moisture content≤25ppm by pre-crystallized after bright chip and semi-dulling chips mixing, melt extrude through screw extruder, the spinnerets of " Y " shape spinneret orifice is adopted to carry out spinning, spinning temperature is 292 ~ 295 DEG C, the as-spun fibre lateral blowing cooling that spinning is obtained, wind-warm syndrome is 25 DEG C, wind speed is 0.5 ± 0.01m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding.
The addition of described semi-dulling chips controls make TiO in hybrid slicing
2mass percentage be 0.02% ~ 0.03%.
Described pre-crystallized temperature is 168 ~ 172 DEG C, and the described pre-crystallized time is 18 ~ 22min; The temperature of described drying is 178 ~ 182 DEG C, and the time of described drying is 7 ~ 9h.Preferred: described pre-crystallized temperature is 170 DEG C, the described pre-crystallized time is 20min; The temperature of described drying is 180 DEG C, and the time of described drying is 8h.
Described spinning temperature is preferably 294 DEG C.
The oil applying rate that described oil nozzle oils is 0.5% ~ 0.6%.
Described screw extruder each district temperature is: 272 ~ 274 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, 290 ~ 292 DEG C, 6th district.
Technical solution of the present invention adds a small amount of semi-dulling chips and forms micro-delustring section production polyester FDY bright trilobal profiled FDY in bright chip, adopts micro-delustring to cut into slices more stable in process of production than large bright chip.Drying being guaranteed, pre-crystallized and drying is abundant, suitably improves baking temperature and extend drying time.Improve spinning temperature, be conducive to the mobile performance improving melt, improve spinnability.Adopt advanced freeze drier, guarantee that drying condition reaches technological requirement.Adopt oil nozzle to oil and high-speed spin finishes, improve the oil applying rate of tow, and adopt FDY one-step method to produce, improve production efficiency.
First be control the drying effect of cutting into slices well, make section moisture content≤25ppm, the quality of chip drying effect, directly have influence on the spinnability of bright trilobal profiled FDY.A rational spinning temperature and lateral blowing wind speed and wind-warm syndrome is found out by constantly putting into practice under the prerequisite improving spinnability.Because three leaf shaped filaments cross sections are special, poor to finish adsorptivity, suitably should improve the oil content of tow, regulate spinning tension in a rational region, optimize drawing process, improve dyeability, and this series of studies is applied in the Development and Production of other specification shaped filaments.
Raw material involved in the present invention unless otherwise indicated, is all bought by market and is obtained.
Beneficial effect of the present invention:
The research and development of production technology of the present invention have very large facilitation to the reduction of production difficulty and the lifting of performance that have light three leaf Profile Polyester Fibre.Guaranteeing in the product situation producing excellent quality, reducing the appearance of broken end, lousiness, reducing production cost.Break end in conventional production process occurrence rate 15% ~ 18%, uses production technology lousiness of the present invention, end breakage rate is only 5% ~ 8%.
Detailed description of the invention:
Production equipment and instrument: German BM formula drying machine, screw extruder, German Ba Mage spinning, stretching, up-coiler, spinnerets (spinnerets of " Y " shape spinneret orifice, external diameter 0.42mm, the wide 0.055mm of leaf, degree of profile 80.8%).
Raw material: bright chip (Plant of Tianjin Petrochemical Company), semi-dulling chips (Wuxi DESAY), finish Huangma Chemical Group Co., Zhejiang produces: HDG-2146 terylene FDY oil.
Embodiment 1: adopt FDY One-step production route to produce polyester FDY bright trilobal profiled FDY 83dtex/36f
Adopt FDY One-step production route: be dried to section moisture content≤25ppm by pre-crystallized after bright chip and semi-dulling chips mixing, melt extrude through screw extruder, described screw extruder screw rod each district temperature is: 273 DEG C, a district, 280 DEG C, 2nd district, 286 DEG C, 3rd district, 288 DEG C, 4th district, 290 DEG C, 5th district, 291 DEG C, 6th district.Adopt the spinnerets of " Y " shape spinneret orifice to carry out spinning, spinning temperature is 294 DEG C, as-spun fibre lateral blowing cooling spinning obtained, wind-warm syndrome is 25 DEG C, wind speed is 0.5m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding, and winding speed is 4300m/min.
The addition of described semi-dulling chips controls make TiO in hybrid slicing
2mass percentage be 0.025%.
Described pre-crystallized temperature is 170 DEG C, and the time is 20min; The temperature of described drying is 180 DEG C, and the time is 8h.
The oil applying rate that described oil nozzle oils is 0.55%.
The detailed technological process of production is: section → screening → pre-crystallized → drying → screw extruder → prefilter → casing pipeline → measuring pump → filament spinning component → lateral blowing → oil → pre-network → the first hot-rolling → the second hot-rolling → master network → winding shaping → knit socks are sentenced look → physical index and detected → packaging warehouse-in.
A small amount of semi-dulling chips is added in bright chip, more stable in process of production than large bright chip, make production process relatively stable while taking into account glossiness, improve full-rolling rate.
Increase the time of staying of section in pre-crystallized, crystallization temperature, baking temperature and drying time all improve, and guarantee pre-crystallized and drying abundant, and the final section moisture content that controls is no more than 25 ppm, improves spinnability.
The anti-silk temperature of suitable raising, is conducive to the mobile performance improving melt, improves spinnability, but unsuitable too high, controls at 294 DEG C more satisfactory, makes the generation of broken end and lousiness significantly reduce while taking into account degree of profile.Experimentally contrast, when anti-silk temperature is lower than 292 DEG C, prepared FDY bright trilobal profiled FDY lousiness broken end is very many, when anti-silk temperature is 292 ~ 295 DEG C, prepared FDY bright trilobal profiled FDY lousiness broken end significantly reduces, when particularly anti-silk temperature is 294 DEG C, prepared FDY bright trilobal profiled FDY lousiness broken end is minimum.
Adopt metal sand as filter medium, strengthen filtration dynamics, improve melt uniformity.Have employed the spinnerets in " Y " shape hole, suitably reduce cooling quench speed, slow down cooling condition, ensure the degree of profile of shaped filaments; Lateral blowing wind speed is reduced compared with conventional silk.
Adopt oil nozzle to oil and high-speed spin finishes, improve the oil applying rate of tow.
Guaranteeing in the product situation producing excellent quality, reducing the appearance of broken end, lousiness, reduce production cost, improve production efficiency, production process is more stable.
Table 1 One-step production route produces polyester FDY bright trilobal profiled FDY production process technology parameter list
By this explained hereafter polyester FDY bright trilobal profiled FDY, production process reduces the appearance of broken end, lousiness, and reduce production cost, improve production efficiency, production process is more stable, excellence rate >=93%, and dyeing is all 4 with degree.The quality measurements of gained silk:
Table 2 FDY bright trilobal profiled FDY quality measurements
| Project name | Measured value |
| Line density/dtex | 83.5dtex |
| Extension at break/% | 32 |
| Boiling water shrinkage/% | 23% |
| Oil content/% | 0.58 |
| Dyeing all with spend | 4 |
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 5%.
Claims (7)
1. the production technology of a polyester FDY bright trilobal profiled FDY, adopt FDY One-step production route, it is characterized in that its production process is: be dried to section moisture content≤25ppm by pre-crystallized after bright chip and semi-dulling chips mixing, melt extrude through screw extruder, the spinnerets of " Y " shape spinneret orifice is adopted to carry out spinning, spinning temperature is 292 ~ 295 DEG C, the as-spun fibre lateral blowing cooling that spinning is obtained, wind-warm syndrome is 25 DEG C, wind speed is 0.5 ± 0.01m/s, and then oil nozzle oils, set-stretching, adds network and coiling and molding.
2. production technology according to claim 1, is characterized in that the addition of described semi-dulling chips controls make TiO in hybrid slicing
2mass percentage be 0.02% ~ 0.03%.
3. 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 18 ~ 22min; The temperature of described drying is 178 ~ 182 DEG C, and the time of described drying is 7 ~ 9h.
4. production technology according to claim 3, it is characterized in that described pre-crystallized temperature is 170 DEG C, the described pre-crystallized time is 20min; The temperature of described drying is 180 DEG C, and the time of described drying is 8h.
5. production technology according to claim 1, is characterized in that described spinning temperature is 294 DEG C.
6. production technology according to claim 1, is characterized in that the oil applying rate that described oil nozzle oils is 0.5% ~ 0.6%.
7. production technology according to claim 1, is characterized in that described screw extruder each district temperature is: 272 ~ 274 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, 290 ~ 292 DEG C, 6th district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310282348.XA CN104278339A (en) | 2013-07-05 | 2013-07-05 | Production technology of polyester FDY bright trilobal yarn |
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| CN201310282348.XA CN104278339A (en) | 2013-07-05 | 2013-07-05 | Production technology of polyester FDY bright trilobal yarn |
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| CN104278339A true CN104278339A (en) | 2015-01-14 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155007A (en) * | 2015-07-31 | 2015-12-16 | 江苏恒科新材料有限公司 | Threeleaf heteromorphic FDY fiber and preparation method for same |
| CN105603546A (en) * | 2015-12-30 | 2016-05-25 | 吴江佳力高纤有限公司 | Preparation method of six-leaf-section fiber |
| CN106757431A (en) * | 2016-11-25 | 2017-05-31 | 南通杰克拜尼服帽有限公司 | A kind of production technology of moisture-absorption and perspiration polyester filament |
| CN106987917A (en) * | 2017-04-21 | 2017-07-28 | 常熟涤纶有限公司 | A kind of processing technology of three leaves special polyester silk |
| CN108707985A (en) * | 2018-08-09 | 2018-10-26 | 福建经纬新纤科技实业有限公司 | A kind of polyester filament and preparation method thereof |
| CN110565183A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester bright flat diamond yarn |
| CN110565181A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester hollow yarn |
| CN111394811A (en) * | 2020-03-09 | 2020-07-10 | 杭州汇维仕永盛化纤有限公司 | Light-sensitive regular octagonal star-shaped polyester fiber filament and preparation method thereof |
| CN116716670A (en) * | 2023-06-19 | 2023-09-08 | 桐昆集团浙江恒通化纤有限公司 | Polyester pre-oriented yarn for direct weaving and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155007A (en) * | 2015-07-31 | 2015-12-16 | 江苏恒科新材料有限公司 | Threeleaf heteromorphic FDY fiber and preparation method for same |
| CN105603546A (en) * | 2015-12-30 | 2016-05-25 | 吴江佳力高纤有限公司 | Preparation method of six-leaf-section fiber |
| CN106757431A (en) * | 2016-11-25 | 2017-05-31 | 南通杰克拜尼服帽有限公司 | A kind of production technology of moisture-absorption and perspiration polyester filament |
| CN106987917A (en) * | 2017-04-21 | 2017-07-28 | 常熟涤纶有限公司 | A kind of processing technology of three leaves special polyester silk |
| CN110565183A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester bright flat diamond yarn |
| CN110565181A (en) * | 2018-06-05 | 2019-12-13 | 江苏天地化纤有限公司 | production process of polyester hollow yarn |
| CN108707985A (en) * | 2018-08-09 | 2018-10-26 | 福建经纬新纤科技实业有限公司 | A kind of polyester filament and preparation method thereof |
| CN108707985B (en) * | 2018-08-09 | 2023-08-11 | 福建经纬新纤科技实业有限公司 | Polyester filament yarn and preparation method thereof |
| CN111394811A (en) * | 2020-03-09 | 2020-07-10 | 杭州汇维仕永盛化纤有限公司 | Light-sensitive regular octagonal star-shaped polyester fiber filament and preparation method thereof |
| CN116716670A (en) * | 2023-06-19 | 2023-09-08 | 桐昆集团浙江恒通化纤有限公司 | Polyester pre-oriented yarn for direct weaving and preparation method thereof |
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