CN103603071A - Fine-denier flat yarn and manufacturing method thereof - Google Patents
Fine-denier flat yarn and manufacturing method thereof Download PDFInfo
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- CN103603071A CN103603071A CN201310470914.XA CN201310470914A CN103603071A CN 103603071 A CN103603071 A CN 103603071A CN 201310470914 A CN201310470914 A CN 201310470914A CN 103603071 A CN103603071 A CN 103603071A
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Abstract
The invention relates to the field of polyester fiber production and particularly discloses a fine-denier flat yarn and a manufacturing method thereof. The fine-denier flat yarn has good properties such as glare performance, fluffiness, soiling resistance, pilling resistance and dyeing easiness. According to the manufacturing method, after being pressurized by a booster pump and cooled by a melt cooler through a melt conveying pipeline, spinning melt is distributed into spinning boxes through a distribution valve, then measured through a measuring pump and sent into a special shape yarn spraying assembly for filtering and extrusion and then cooled through circular air blowing to obtain primary fiber; after being processed by an oiling unit, yarn guide hooks, yarn guide plates a pre-weaving unit and the like, the primary fiber enters a winder at a certain tension to obtain the multi-aperture superfine-denier flat yarn. The fine-denier flat yarn has good properties such as glare performance, fluffiness, soiling resistance, pilling resistance and dyeing easiness, overcomes wax type soft and smooth feeling of fabric woven from round-section fiber, provides a specific style and excellent properties for the fabric and is a novel polyester fiber with high added value.
Description
Technical field
The present invention relates to the production field of polyester fiber, especially a kind of thin denier flat silk and manufacture method thereof.
Background technology
Common fibre section is circular, but fibre section is other shapes, and as three leaves, leafy, triangle, star, flat, hollow etc., or circular cross-section mixes mutually with odd-shaped cross section, and these silks are called shaped filaments.The cross section of shaped filaments is that while spraying silk by special-shaped spinneret orifice, institute is formed, and shaped filaments has been improved wax-like sense and the gloss of circular wire, has improved the coefficient of friction of fiber, increased fiber specific area, thus overcome some intrinsic defect of synthetic fiber.Flat filament is a kind of in shaped filaments, has resistant and ANTIPILLING, is easier to dyeing, can give the style of fabric uniqueness and excellent extremely consumer's welcome of performance.
Flatness refers to the length-width ratio of fibre section, very large on the structural behaviour impact of fabric.Fiber flatness is too large, and fabric is too soft.The technique that affects fiber flatness mainly contains the size of spinnerets and arranges, spinning body temperature and component pressure, cooling condition and gather position, the kind of finish, spinning speed etc.Suitable process conditions are the necessary conditions of producing qualified profiled filament.
Summary of the invention
The object of the invention is to provide in order to solve the deficiency of above-mentioned technology a kind of thin denier flat silk and manufacture method thereof with performances such as good flash of light, bulkiness, resistant, ANTIPILLING and easy dyeings.
In order to achieve the above object, the thin denier flat silk that the present invention is designed, its filament number is 0.6-0.9dtex, hole count specification is 288.
The manufacture method of thin denier flat silk, the first step, being prepared as follows of spinning melt: p-phthalic acid (PTA) and ethylene glycol (EG) is through esterification, 255 ℃～273 ℃ of esterification temperatures, steam pressure 1.9kg/cm2～2.5kg/cm2, carry out again precondensation, 288 ℃～292 ℃ of precondensation temperature, and then carry out final polymerization, 287.7 ℃～290 ℃ of whole condensation temperatures, reaction makes spinning melt, and the viscosity of spinning melt is 0.626～0.668dl/g; Second step, the spinning melt that by temperature is 280 ℃～290 ℃ enters spinning manifold by melt Conveying pipeline after booster pump supercharging, melt cooler are cooling, spinning body temperature is controlled at 290 ℃～295 ℃, again through measuring pump metering, spinneret component spinning, the pressure of spinneret component is controlled at 16MPa～18MPa, and spinning temperature is 279 ℃～292 ℃, then through ring quenching, makes as-spun fibre, the wind-warm syndrome of wherein encircling quenching is controlled at 20～23 ℃, blast 20～25Pa; The 3rd step, as-spun fibre enters winder winding winding forming after oiling device, and wherein spinning speed is 2500m/min～3000m/min.
The cross section of the spinneret orifice of the spinnerets in described spinneret component is yi word pattern, and adopts the micro-dislocation of concentric circles to arrange, spinneret orifice be scattered in 10 circle concentric circles, improve fiber yarn unevenness, improve product inherent quality.
The position 1000mm of spinning boundling, guarantees the dry uniformity of product bar, reduces broken end.
The present invention selects oil solution dedicated lousiness and the rear processing characteristics improved of porous superfine denier fiber.
The present invention adopts special coiling and molding technique, and the contact of winding head is adjusted, and has guaranteed forming requirements Ji Hou road needs.
The resulting thin denier flat silk of the present invention and manufacture method thereof, first carry out esterification by p-phthalic acid and ethylene glycol, polycondensation reaction obtains spinning melt, then by spinning technique, makes the thin denier flat silk in yi word pattern cross section.Prepared specification is that the fracture strength of 170dtex～260dtex/288f thin denier flat silk is 2.3cN/dtex～2.6cN/dtex, CV%≤4.8 of fracture strength, elongation at break is 125 ± 4%, CV%≤5.0 of elongation at break, yarn unevenness CV%≤1.2, oil content 0.4%～0.6%.This thin denier flat silk has the premium properties such as good flash of light, bulkiness, resistant, ANTIPILLING and easy dyeing, it has overcome the wax-like flexible smooth feeling of circular-section fibers institute woven fabric, more giving the style of fabric uniqueness and excellent performance, is a kind of new type polyester fiber with high added value.
Its single synnema is comprised of 288 monofilament, Profiled Fibre Cross-Section >=28%.Fiber hair orthostatic is good, and fabric is smooth, feel bullet is soft, is rich in third dimension, comfortable pleasant; " one " font cross section flat fiber has the performances such as good flash of light, bulkiness, resistant and ANTIPILLING.
Accompanying drawing explanation
Fig. 1 is spinning technique flow chart of the present invention.
The specific embodiment
Below by embodiment, the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, the thin denier flat silk that the present embodiment is described, its filament number is 0.6-0.9dtex, hole count specification is 288.
The preparation method of thin denier flat silk is as follows:
(1) preparation of spinning melt
P-phthalic acid (PTA) and ethylene glycol (EG) enter slurry preparation 3 by PTA conveyance conduit 1 and EG carrier pipe 2 roads respectively, then enter slurry feeding tank 5, under the effect of motor 4, slurry are mixed.Slurry, after the equipment such as reaction kettle of the esterification 6, metered shot pump 7, catalyst feeding unit 8, prepolymerization reaction still 9, final polymerization reactor 10, obtains spinning melt.Vacuum system device 11 guarantees that prepolymerization reaction and whole polycondensation reaction have suitable vacuum.Wherein esterification temperature is 270 ℃, 288 ℃ of precondensation temperature, and 288 ℃ of whole condensation temperatures, the polyester melt viscosity obtaining is 0.627～0.628dl/g.
(2) preparation of thin denier flat silk
The polyester fondant with high-end carboxyl is delivered to the spinning manifold 14 that cooler 13 enters desuperheating heating technique after cooling with stable viscosity drop through booster pump 12 superchargings by conveyance conduit, through measuring pump metering, assembly spray silk, then through the ring blowing 15 cooling as-spun fibres that make.Spinning condition is controlled as follows: 285 ℃ of spinning melt temperature, and spinning body temperature is controlled at 292 ℃, filament spinning component pressure 18MPa, 283 ℃ of spinning temperatures; It is 21 ℃ that ring blowing temperature is controlled, ring blowing blast pressure 23Pa.
(3) coiling and molding of thin denier flat silk silk
As-spun fibre enters up-coiler 17 coiling and moldings with certain tension force after oiling device 16.Spinning speed is 2845m/min.
The specification that the present embodiment is produced is that the performance of 170dtex～260dtex/288f thin denier flat silk can reach: fracture strength is 2.3cN/dtex～2.6cN/dtex, the CV%=4.8 of fracture strength, elongation at break is 129%, the CV%=5.0 of elongation at break, yarn unevenness CV%=1.2, oil content 0.4%.
Specific embodiment described herein is only to design of the present invention explanation for example.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (4)
1. a thin denier flat silk, is characterized in that: its filament number is 0.6-0.9dtex, and hole count specification is 288.
2. the manufacture method of a thin denier flat silk, it is characterized in that: the first step, being prepared as follows of spinning melt: p-phthalic acid (PTA) and ethylene glycol (EG) are through esterification, 255 ℃～273 ℃ of esterification temperatures, steam pressure 1.9kg/cm2～2.5kg/cm2, then carry out precondensation, 288 ℃～292 ℃ of precondensation temperature, and then carry out final polymerization, and 287.7 ℃～290 ℃ of whole condensation temperatures, reaction makes spinning melt; Second step, the spinning melt that by temperature is 280 ℃～290 ℃ enters spinning manifold by melt Conveying pipeline after booster pump supercharging, melt cooler are cooling, spinning body temperature is controlled at 290 ℃～295 ℃, again through measuring pump metering, spinneret component spinning, the pressure of spinneret component is controlled at 16MPa～18MPa, and spinning temperature is 279 ℃～292 ℃, then through ring quenching, makes as-spun fibre, the wind-warm syndrome of wherein encircling quenching is controlled at 20～23 ℃, blast 20～25Pa; The 3rd step, as-spun fibre enters winder winding winding forming after oiling device, and wherein spinning speed is 2500m/min～3000m/min.
3. the preparation method of a kind of thin denier flat silk according to claim 2, is characterized in that: the cross section of the spinneret orifice of the spinnerets in described spinneret component is yi word pattern, and adopts the micro-dislocation of concentric circles to arrange, spinneret orifice be scattered in 10 circle concentric circles.
4. the preparation method of a kind of thin denier flat silk according to claim 2, is characterized in that: the position 1000mm of spinning boundling.
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| CN201310470914.XA CN103603071A (en) | 2013-10-10 | 2013-10-10 | Fine-denier flat yarn and manufacturing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087085A (en) * | 2016-07-26 | 2016-11-09 | 桐乡市中辰化纤有限公司 | Single cake 576f surpasses the production method of porous POY polyester filament |
| CN106283236A (en) * | 2016-08-30 | 2017-01-04 | 桐昆集团浙江恒通化纤有限公司 | A kind of preparation processing method of two-sided hair ease Down Fiber |
| CN106283237A (en) * | 2016-08-31 | 2017-01-04 | 桐昆集团浙江恒通化纤有限公司 | A kind of preparation method of terylene height F fine-denier wool-like fiber |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN106676645A (en) * | 2015-11-05 | 2017-05-17 | 无锡索力得科技发展有限公司 | Production system of adding color paste stock solution by single box melt direct spinning |
| CN106676644A (en) * | 2015-11-05 | 2017-05-17 | 无锡索力得科技发展有限公司 | Melt-direct spinning production system with addition of color sizing primary liquid |
| CN106894155A (en) * | 2015-12-17 | 2017-06-27 | 东丽纤维研究所（中国）有限公司 | A kind of braid and preparation method thereof |
| CN113913963A (en) * | 2021-08-20 | 2022-01-11 | 桐昆集团浙江恒通化纤有限公司 | Preparation method and production equipment of ultra-bright fine-denier flat terylene pre-oriented yarn |
| CN116397342A (en) * | 2023-03-04 | 2023-07-07 | 浙江恒优化纤有限公司 | Polyester fiber spinning equipment and process |
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| CN103290507A (en) * | 2013-05-07 | 2013-09-11 | 桐乡市中辰化纤有限公司 | Preparation method of polymerized micro-amount modified super bright polyester fibers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106676645A (en) * | 2015-11-05 | 2017-05-17 | 无锡索力得科技发展有限公司 | Production system of adding color paste stock solution by single box melt direct spinning |
| CN106676644A (en) * | 2015-11-05 | 2017-05-17 | 无锡索力得科技发展有限公司 | Melt-direct spinning production system with addition of color sizing primary liquid |
| CN106894155A (en) * | 2015-12-17 | 2017-06-27 | 东丽纤维研究所（中国）有限公司 | A kind of braid and preparation method thereof |
| CN106087085A (en) * | 2016-07-26 | 2016-11-09 | 桐乡市中辰化纤有限公司 | Single cake 576f surpasses the production method of porous POY polyester filament |
| CN106283236A (en) * | 2016-08-30 | 2017-01-04 | 桐昆集团浙江恒通化纤有限公司 | A kind of preparation processing method of two-sided hair ease Down Fiber |
| CN106283236B (en) * | 2016-08-30 | 2018-05-18 | 桐昆集团浙江恒通化纤有限公司 | A kind of preparation processing method of two-sided hair ease Down Fiber |
| CN106283237A (en) * | 2016-08-31 | 2017-01-04 | 桐昆集团浙江恒通化纤有限公司 | A kind of preparation method of terylene height F fine-denier wool-like fiber |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN113913963A (en) * | 2021-08-20 | 2022-01-11 | 桐昆集团浙江恒通化纤有限公司 | Preparation method and production equipment of ultra-bright fine-denier flat terylene pre-oriented yarn |
| CN116397342A (en) * | 2023-03-04 | 2023-07-07 | 浙江恒优化纤有限公司 | Polyester fiber spinning equipment and process |
| CN116397342B (en) * | 2023-03-04 | 2024-01-19 | 浙江恒优化纤有限公司 | Polyester fiber spinning equipment and process |
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Application publication date: 20140226 |