CN104480555A - Production process of high-elasticity-feature terylene pre-oriented fibers - Google Patents
Production process of high-elasticity-feature terylene pre-oriented fibers Download PDFInfo
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- CN104480555A CN104480555A CN201410696192.4A CN201410696192A CN104480555A CN 104480555 A CN104480555 A CN 104480555A CN 201410696192 A CN201410696192 A CN 201410696192A CN 104480555 A CN104480555 A CN 104480555A
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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
- D01D13/00—Complete machines for producing artificial threads
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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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
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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
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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
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
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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
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
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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
- D01D7/00—Collecting the newly-spun products
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
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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 provides a production process of high-elasticity-feature terylene pre-oriented fibers. The production process is characterized by comprising the steps of 1) slicing a raw material, namely, modified polyester, conveying the material to a wet material bin to enable pre-crystallizing, and then ventilating and drying to obtain dry slices; 2) feeding the dry slices and an additive into a screw extrusion machine together under a melting condition, filtering and then transferring into a spinning box to obtain a melt; 3) metering the melt through a metering pump, and feeding into a spinning assembly to yield silks; 4) performing slow cooling and side blowing for the silks obtained in step 3) to cool and shape, and then applying oil; 5) pulling, stretching, and thermally shaping; 6) coiling through a coiling head to obtain the high-elasticity-feature terylene pre-oriented fibers. The high-elasticity-feature terylene pre-oriented fibers prepared by the production process have the advantages that the specification is up to 180dtex/ 36f, the breaking strength is not less than 1.80cN/ dtex, the elongation at break is 200+/30; the softness, sense of touch and rebound elasticity are superior to those of the general fibers, and moreover, the water absorbing performance, the oil absorbing performance and the cleaning function are high.
Description
Technical field
The present invention relates to a kind of production technology of fiber, particularly relate to a kind of production technology of high ductility characteristic terylene pre-tropism fiber.
Background technology
At present, although the portion of techniques of China's polyester fiber industry and product are reached advanced world standards, be also faced with simultaneously such as high added value functional fiber kind few, yield poorly, quality is not high, homogeneity dog-eat-dog, the outstanding problems such as industrial profit rate is low.Therefore, research and develop all kinds of various high-performance, functionalization, comfort type and ultranatural fiber, fibre in differentiation etc., become the emphasis of each Corporation R & D in chemical fibre industry.
The specification of the terylene pre-oriented fiber of high ductility characteristic is 180dtex/36f, fracture strength is >=1.80cN/dtex, elongation at break is 200 ± 30, there is high dye colour rendering, moisture absorption is breathed freely, antistatic, anti-fuzz balls, soft bulk, take effect and the low cost high effects such as comfortable, the feature that added value of product is high, the spinning speed of the spining technology of current routine is lower, such high ductility characteristic terylene pre-oriented fiber cannot be produced, and the constant product quality using existing processing method to produce is poor, dyeability and effect poor, production cost is high, efficiency is low.
To sum up, the production technology of a kind of high ductility characteristic of current needs terylene pre-tropism fiber, the product produced meets the terylene pre-oriented fiber specifications and characteristics index of high ductility characteristic, be significantly improved in spreadability, bulkiness and moisture transported permeable and warmth retention property, manufacturing procedure can be simplified simultaneously, reduce production cost, improve output.
Summary of the invention
The object of the invention is to, by to relevant device optimal design and technological transformations such as filament spinning component, spinneret design, cooling curing, coiler devices, and adopt that modified poly ester spinning melt is extruded, high ductility controlled properties cooling forming and improve the optimization of the key technologies such as winding speed and machining process route, the terylene pre-tropism fiber of production has high dye colour rendering, moisture absorption is breathed freely, antistatic, anti-fuzz balls, soft bulk, take the comfortable and obvious feature of superiority of effectiveness and good market development prospect.
For achieving the above object, technical scheme provided by the present invention is:
A production technology for high ductility characteristic terylene pre-tropism fiber, comprises the following steps:
1) modified poly ester feed stock chip be delivered to wet feed storehouse, pre-crystallized laggard row aeration-drying, obtained dry section;
2) under melting condition, described dry section adds screw extruder together with additive, enters manifold, obtain melt after filtration;
3) described melt measures through measuring pump, enters wire vent in filament spinning component;
4) step 3) in the silk that obtains through slow cooling and lateral blowing combination cooling forming, and to oil;
5) traction stretching, HEAT SETTING;
6) coiling and molding is carried out by winding head, obtained product.
Further, in step 1) in, described pre-crystallized temperature is 170-180 DEG C, and the time of staying is 25-35min; The temperature of described drying is 170-180 DEG C, and drying time is 4-6h, and described ventilation is 250-300Nm
3/ h, dry air entrance dew point is-80 DEG C.
Further, in step 1) in, described pre-crystallized temperature is 176 DEG C, and the time of staying is 28min; The temperature of described drying is 173 DEG C, and drying time is 5.5h, and described ventilation is 265Nm
3/ h.
Further, in step 2) in, described additive is polyalcohol or the esters of acrylic acid of below 200 nanometers, and addition is 1-2%.
Further, in step 3) described in there is spinnerets in filament spinning component, described spinnerets adopts subregion to be uniformly distributed arrangement, and spinnerets draw ratio is more than or equal to 3.5; Spinning temperature is 288-292 DEG C, and spinnerets specification is Φ 95, and spray silk initial pressure is 140-160bar.
Further, in step 3) in, spinning temperature is 289 DEG C, and spinnerets specification is Φ 95, and spray silk initial pressure is 150bar.
Further, in step 4) in, below described spinnerets, arrange annealing device and cross air blowing device for described slow cooling and lateral blowing cooling, described annealing device has slow cooling heater, and described cross air blowing device is placed in the below of described slow cooling heater; Lateral blowing speed is 0.40-0.50m/s, and lateral blowing temperature is 20-24 DEG C, and lateral blowing humidity is 65-75%; The oil concentration that oils is 10-12%.
Further, in step 4) in, lateral blowing speed is 0.45m/s, and lateral blowing temperature is 22 DEG C, and lateral blowing humidity is 70%; The oil concentration that oils is 11%.
Further, in step 6) in, the speed of described winding is 3000-3300m/min.
Further, in step 6) in, the speed of described winding is 3100m/min.
Adopt technique scheme, beneficial effect of the present invention has:
1. the high ductility characteristic terylene pre-tropism fiber prepared of production technology according to the present invention, its specification can reach 180dtex/36f, fracture strength is >=1.80cN/dtex, elongation at break is 200 ± 30, this fiber is more soft than general fiber, sense of touch and resilience better, water imbibition, oil absorption and cleaning function are higher, have high dye colour rendering, ventilative, antistatic, the anti-fuzz balls of moisture absorption, softness is bulk, take the effects such as comfortable.
2. process of the present invention does not have waste material to discharge, and reaches energy-saving and emission-reduction, protection of the environment, the object of cleaner production and good market prospects and economic results in society.
3. the production of high ductility characteristic terylene pre-tropism fiber of the present invention simplifies manufacturing procedure, there is production cost low, product efficacy is high, output increased, added value of product is high, and in spreadability, bulkiness and moisture transported permeable and warmth retention property comparatively natural fabric feature and the vast potential for future development such as to be significantly improved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the technological process of one embodiment of the present of invention;
Fig. 2 is the schematic diagram that in one embodiment of the present of invention, spinneret orifice subregion is uniformly distributed arrangement.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The equipment that the present invention uses has: section the device such as apparatus for melt spinning and German Barmag AG POY winding apparatus, German Ba Mage high-speed deformation machine and pilot plant test room, pilot experiment room, analytical test room, Ubbelohde For Intrinsic Viscosity Measurements instrument, YG252 type microscope melting point detector, Switzerland Uster-IV type stretches instrument by force; Uster-IV type evenness meter.The blast instrument of TESTO company of Germany.
Production technology technological process: drying → dry section and additive are inputted screw rod, and melting → spinning manifold → measuring pump → filament spinning component → cooling forming → oil Modified polyester chips → drawing-off → coiling and molding.Particularly, comprise the following steps:
1) modified poly ester feed stock chip be delivered to wet feed storehouse, pre-crystallized laggard row aeration-drying, obtained dry section;
2) under melting condition, described dry section adds screw extruder together with additive, enters manifold, obtain melt after filtration;
3) described melt measures through measuring pump, enters wire vent in filament spinning component;
4) step 3) in the silk that obtains through slow cooling and lateral blowing combination cooling forming, and to oil;
5) traction stretching, HEAT SETTING;
6) coiling and molding is carried out by winding head, obtained product.
Embodiment 1
1, Modified polyester chips is dry, pre-crystallized
Chip drying process need is heated to 160-170 DEG C, and the softening point of common section is very low, is easily bonded to block blocking drying device or conveying pipeline, and pre-crystallized raising section degree of crystallinity, such softening point can arrive more than 200 DEG C, is conducive to dry carrying out smoothly.Time dry, be transported to bottom drying tower drying tower and make section rapid dehydration with reverse contact of section, moisture is taken out of from drying tower top by dry air.
Pre-crystallized temperature is 170 DEG C, and the time of staying is 35min; The temperature of described drying is 170 DEG C, and drying time is 4h, and described ventilation is 250Nm
3/ h, dry air entrance dew point is-80 DEG C.Production capacity is 300KG/h, dry section moisture content≤0.003%.The main performance index of polyester slice is in table 1.
Table 1 polyester slice main performance index
| Project | Unit | Numerical value |
| Intrinsic viscosity ([η]) | dl.g -1 | 0.640±0.005 |
| Fusing point | ℃ | ≥258 |
| Moisture content | ppm | ≤30 |
| Aggregated particle (>=10 μm) | Individual/mg | ≤0.6 |
| Carboxyl-content | mol.t -1 | ≤30 |
2, melting, spinning
This step is that solid slice is melt into melt, and polyester is in the molten state spun into the process of tow.Add the polyalcohol that mass fraction is 1%, reach the rheological characteristic and spinnability of improving melt in spinning melt extrusion and the object playing the effect reducing orientation and suppress spinning induced crystallization.The equipment of spinning comprises fondant filter, screw extruder, spinning manifold, measuring pump, assembly (comprising extra large sand or metal sand, screen pack, distribution plate, spinnerets, assembly shell, packing ring etc.), crosswind machine.Measuring pump is the fiber number being adjusted tow by the frequency of motors of metering pumps.
Wherein in the production technology of high ductility characteristic terylene pre-tropism fiber of the present invention, spinnerets pore size and arrangement design are the keys of technology, when spinnerets micropore designs, the draw ratio of suitable increase spinneret orifice, the spinneret orifice draw ratio that the present invention selects is greater than more than 3.5, consider in spinning high ductility terylene pre-oriented fiber structural behaviour and after-drawing performance simultaneously, spinnerets pore arrangement adopts subregion to be uniformly distributed arrangement, as shown in Figure 2, the uniform and stable property of cooling quench air-flow to the Homogeneous cooling of strand and structural behaviour is guaranteed.
Simultaneously, the dependence of spinning melt viscosity to melt temperature in spinning technique compares sensitiveness, when melt can obtain larger rheological resistance from making the melt stream extruded during spinnerets micropore die extrusion, form imperfect flow effect, cause the plucked of melt stream and distribute alternately.Therefore, suitably reduce spinning temperature, be conducive to melt and reach above-mentioned effect from during spinnerets micropore die extrusion.But spinning temperature can not be too low, otherwise the too large and spinnability of the rheological resistance increase that can cause spinning melt thread is deteriorated, lousiness broken end increase and after-drawing processing characteristics deteriorated, spinning process normally can not be carried out, thus affect structure and the after-drawing performance of fiber.
Therefore in the present embodiment, the pore arrangement subregion of spinnerets is uniformly distributed arrangement; Spinning temperature is 288 DEG C, and spinnerets specification is Φ 95, and spinnerets micropore is 0.28*0.54*36, and assembly is configured to 20/280+40/240 order/g, and spray silk initial pressure is 140bar.
3, combine cooling forming, and oil
The object of cooling is that the melt spued by spinnerets is cooled to normal temperature from melt temperature and is frozen into tow, the combination type of cooling of slow cooling and lateral blowing is adopted in cooling forming process, annealing device and lateral-blowing air cooling device are set below spinnerets, lateral-blowing air cooling device is arranged on the below of slow cooling heater, and lateral blowing makes its fast cooling to blow to tow close to the angle of 90 degree and ensures that tow solidified completely before first oil nozzle.Adopt the combination type of cooling in the present invention, to ensure the Homogeneous cooling effect of cooling quench air-flow to strand, the cooldown rate reducing fiber deformation district on spinning threadling and the length increasing cooling length and prolongation deformation district is reached in spinning technique process, play the effect reducing orientation and suppress spinning induced crystallization, thus reach the object preparing high ductility characteristic terylene pre-oriented fiber under high speed spinning speed.
Therefore, lateral blowing speed is 0.35M/s, and lateral blowing temperature is 20 DEG C, and lateral blowing humidity is 65%; Distance between spinnerets to atomizer between gather position is 70cm; The oil concentration that oils is 10%.
4, traction stretches
Eliminate stretching internal stress, a structure is tended towards stability, and temperature is higher, and in tow, macromolecular chain activity strengthens, and fibre crystallinity improves, and strand boiling water shrinkage declines.
The process velocity that traction stretches is 600m/min, and processing temperature is 160 DEG C, and the temperature of sizing is 120 DEG C.
Table 2 is the performance indications of POY fiber, and table 3 is POY procedure of fibre production quality index.
The performance indications of table 2POY fiber
| Project | Unit | Technical requirement | Measured value |
| Line density | dtex/f | — | 180.1 |
| Fracture strength | cN/dtex | ≥1.8 | 1.87 |
| Fracture strength CV | ％ | ≤8 | 2.21 |
| Elongation at break | ％ | 200±30 | 176.99 |
| Elongation at break CV value | ≤8 | 4.97 |
Table 3POY procedure of fibre production quality index
| Full-rolling rate (%) | 97.12 |
| Excellence rate (%) | 96.00 |
5, coiling and molding, obtained finished product
Carry out coiling and molding by winding head, from the spun tow of spinning workshop section, be rolled into spinning cake according to certain speed, mode, winding speed is greater than draw rate, to control winding tension, guarantees good coiling and molding.Because the blending and modifying melt stream extruded from the spinneret orifice as-spun fibre after the combination cooling forming of slow cooling and lateral blowing has the characteristic of low orientation and low crystallization, the winding tension in high-speed winding forming process is moderate, can not be too large or too little.Research finds, when identical spinning speed, the elongation at break of terylene pre-oriented fiber increases with the addition of added nanometer additive and extends, and other performance also changes thereupon, makes it have good mechanical property and processing characteristics and dyeing uniformity.
Therefore, to select according to the addition adding additive in spinning technique to determine suitable high-speed winding shaping speed, adjustment and the oriented crystalline degree of terylene pre-oriented fiber controlled well, to guarantee that the prepared terylene pre-oriented fiber obtained has the good feature of high ductility, high dye colour rendering and pliability.The additive capacity of additive is 1% in the present embodiment, and winding speed is corresponding is adjusted to 3000m/min.
Table 4 is the main performance index of product.
The main performance index of table 4 product
| Test event | Unit | Technical requirement | Actual test number |
| Line density | dtex | -- | 180.1 |
| Fracture strength | cN/dtex | ≥1.8 | 1.87 |
| Fracture strength CV | ％ | ≤8 | 2.21 |
| Elongation at break | ％ | 200±30 | 176.99 |
| Extension at break CV value | ≤8 | 4.97 |
Embodiment 2
1, Modified polyester chips is dry, pre-crystallized
Pre-crystallized temperature is 180 DEG C, and the time of staying is 25min; The temperature of described drying is 180 DEG C, and drying time is 6h, and described ventilation is 300Nm
3/ h, dry air entrance dew point is-80 DEG C.Production capacity is 400KG/h, dry section moisture content 0.0025%.
2, melting, spinning
In the present embodiment, add the blending that mass fraction is the acrylate of 2%, the pore arrangement subregion of spinnerets is uniformly distributed arrangement; Spinning temperature is 292 DEG C, and spinnerets specification is Φ 95, and spinnerets micropore is 0.28*0.54*36, and assembly is configured to 20/280+40/240 order/g, and spray silk initial pressure is 160bar.
3, combine cooling forming, and oil
In the present embodiment, adopt the combination type of cooling of slow cooling and lateral blowing in cooling forming process, lateral blowing speed is 0.55M/s, and lateral blowing temperature is 24 DEG C, and lateral blowing humidity is 75%; Distance between spinnerets to atomizer between gather position is 90cm; The oil concentration that oils is 12%.
4, traction stretches
The process velocity that traction stretches is 800m/min, and processing temperature is 180 DEG C, and the temperature of sizing is 130 DEG C.
5, coiling and molding, obtained finished product
Carry out coiling and molding by winding head, from the spun tow of spinning workshop section, be rolled into spinning cake according to certain speed, mode, winding speed is greater than draw rate, to control winding tension, guarantees good coiling and molding.The speed of winding is 3200m/min.
Embodiment 3
1, Modified polyester chips is dry, pre-crystallized
Pre-crystallized temperature is 176 DEG C, and the time of staying is 28min; The temperature of described drying is 173 DEG C, and drying time is 5.5h, and described ventilation is 300Nm
3/ h, dry air entrance dew point is-80 DEG C, dry section moisture content 0.0025%.
2, melting, spinning
In the present embodiment, add the blending that mass fraction is the acrylate of 1%, the pore arrangement subregion of spinnerets is uniformly distributed arrangement; Spinning temperature is 289 DEG C, and spinnerets specification is Φ 95, and spinnerets micropore is 0.28*0.54*36, and assembly is configured to 20/280+40/240 order/g, and spray silk initial pressure is 145bar.
3, combine cooling forming, and oil
In the present embodiment, adopt the combination type of cooling of slow cooling and lateral blowing in cooling forming process, lateral blowing speed is 0.45M/s, and lateral blowing temperature is 22 DEG C, and lateral blowing humidity is 70%; Distance between spinnerets to atomizer between gather position is 80cm; The oil concentration that oils is 11%.
4, traction stretches
The process velocity that traction stretches is 800m/min, and processing temperature is 180 DEG C, and the temperature of sizing is 130 DEG C.
5, coiling and molding, obtained finished product
Carry out coiling and molding by winding head, from the spun tow of spinning workshop section, be rolled into spinning cake according to certain speed, mode, winding speed is greater than draw rate, to control winding tension, guarantees good coiling and molding.The speed of winding is 3100m/min.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a production technology for high ductility characteristic terylene pre-tropism fiber, is characterized in that, comprise the following steps:
1) modified poly ester feed stock chip be delivered to wet feed storehouse, pre-crystallized laggard row aeration-drying, obtained dry section;
2) under melting condition, described dry section adds screw extruder together with additive, enters manifold, obtain melt after filtration;
3) described melt measures through measuring pump, enters wire vent in filament spinning component;
4) step 3) in the silk that obtains through slow cooling and lateral blowing combination cooling forming, and to oil;
5) traction stretching, HEAT SETTING;
6) coiling and molding is carried out by winding head, obtained product.
2. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 1, is characterized in that, in step 1) in, described pre-crystallized temperature is 170-180 DEG C, and the time of staying is 25-35min; The temperature of described drying is 170-180 DEG C, and drying time is 4-6h, and described ventilation is 250-300Nm
3/ h, dry air entrance dew point is-80 DEG C.
3. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 2, is characterized in that, in step 1) in, described pre-crystallized temperature is 176 DEG C, and the time of staying is 28min; The temperature of described drying is 173 DEG C, and drying time is 5.5h, and described ventilation is 265Nm
3/ h.
4. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 1, is characterized in that, in step 2) in, described additive is polyalcohol or the esters of acrylic acid of below 200 nanometers, and addition is 1-2%.
5. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 1, it is characterized in that, in step 3) described in there is spinnerets in filament spinning component, described spinnerets adopts subregion to be uniformly distributed arrangement, and spinnerets draw ratio is more than or equal to 3.5; Spinning temperature is 288-292 DEG C, and spinnerets specification is Φ 95, and spray silk initial pressure is 140-160bar.
6. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 5, is characterized in that, in step 3) in, spinning temperature is 289 DEG C, and spinnerets specification is Φ 95, and spray silk initial pressure is 150bar.
7. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 5, it is characterized in that, in step 4) in, annealing device and cross air blowing device are set below described spinnerets for described slow cooling and lateral blowing cooling, described annealing device has slow cooling heater, and described cross air blowing device is placed in the below of described slow cooling heater; Lateral blowing speed is 0.40-0.50m/s, and lateral blowing temperature is 20-24 DEG C, and lateral blowing humidity is 65-75%; The oil concentration that oils is 10-12%.
8. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 7, is characterized in that, in step 4) in, lateral blowing speed is 0.45m/s, and lateral blowing temperature is 22 DEG C, and lateral blowing humidity is 70%; The oil concentration that oils is 11%.
9. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 1, is characterized in that, in step 6) in, the speed of described winding is 3000-3300m/min.
10. the production technology of high ductility characteristic terylene pre-tropism fiber according to claim 9, is characterized in that, in step 6) in, the speed of described winding is 3100m/min.
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Cited By (7)
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| CN106591970A (en) * | 2017-02-11 | 2017-04-26 | 孙中志 | High-strength engineering fiber production technology |
| CN108642582A (en) * | 2018-04-25 | 2018-10-12 | 山东齐鲁化纺有限公司 | A kind of 1.56dtex × 38mm flame retardant polyester staple fibres trial production technique |
| CN110820071A (en) * | 2019-09-29 | 2020-02-21 | 中润科技股份有限公司 | Preparation method of high-performance nano polyester filament yarn |
| CN111020732A (en) * | 2019-12-11 | 2020-04-17 | 诸暨市百乐化纤有限公司 | Efficient polyester POY production equipment and process |
| CN113089114A (en) * | 2021-03-24 | 2021-07-09 | 湖州市中跃化纤有限公司 | Process method for improving inherent quality uniformity of coarse denier porous special-shaped filament PET-POY |
| CN115896961A (en) * | 2022-12-27 | 2023-04-04 | 广东坚达聚纤科技实业有限公司 | Melt spinning optimization process |
| CN117187969A (en) * | 2023-11-08 | 2023-12-08 | 中润科技股份有限公司 | Breakage-proof forming process for polyester fiber spinning |
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| CN117187969A (en) * | 2023-11-08 | 2023-12-08 | 中润科技股份有限公司 | Breakage-proof forming process for polyester fiber spinning |
| CN117187969B (en) * | 2023-11-08 | 2024-01-30 | 中润科技股份有限公司 | Breakage-proof forming process for polyester fiber spinning |
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