CN105586660B - A kind of hydrophilic production method for leading wet vortex spinning dedicated polyester staple fiber - Google Patents
A kind of hydrophilic production method for leading wet vortex spinning dedicated polyester staple fiber Download PDFInfo
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Abstract
The invention discloses a kind of hydrophilic production methods for leading wet vortex spinning dedicated polyester staple fiber.This method is produced using continous way polyester production device, and elder generation obtains hydrophilic polyester fondant under Titanium series catalyst effect, by the progress ternary polymerization of hydrophilic modifier, terephthalic acid (TPA) (abbreviation PTA) and ethylene glycol (abbreviation EG)；Again after booster pump is pressurized, be directly delivered to device for spinning through melt pipe, spinning manifold inputted by metering pump-metered, after through odd-shaped cross section spinning, post-processing and with ordinary polyester together-cutting in proportion, so that obtaining turbine spins special polyester staple fiber.Production method of the invention makes polyester fondant become hydrophily from hydrophobicity, and more environmentally-friendly, stable, obtained vortex spinning dedicated polyester staple fiber has hydrophilic wet guiding function, can be applied to the fabric that manufacture has permanent Moisture absorbing & quick drying property.
Description
Technical field
The present invention relates to a kind of manufacturing methods of polyester staple fiber, in particular to a kind of with hydrophilic wet guiding function and dedicated
In the manufacturing method of the polyester staple fiber of Tecnology of Air Vortex Spinning.
Background technique
Lot of advantages that air vortex spinning has that speed is fast, yield is high, process is short and row yielding is high etc., from the eighties in last century by
Since Japanese Murata is released, it has been developed rapidly.Theoretically, the adaptability of air vortex spinning is wider, can be used for processing
A variety of high microstepings such as fibre, viscose rayon, fiber crops or cotton weave pure spinning or mixed yarn, but in fact the pure spinning chemical fiber wire of vortex spinning progress adds
Working hour can but suffer from larger puzzlement, and terylene belongs to rigid high polymer, and the segmental mobility of strand is poor, fiber modulus
Height, flexible smaller, Boardy Feeling, then further enhances the harder deficiency of Air Vortex Spun Yarn feel as vortex spinning raw material.In addition common
Polyester staple fiber specific resistance is big, get damp again it is low, when for air vortex spinning there are processing difficulties, row yielding is low, nozzle easily blocks, need frequency
The problems such as numerous cleaning.
Air Vortex Spun Yarn is the yarn spinned instead of the rotor of revolution at a high speed with fixed vortex spinning spool.It is curved on yarn
Bent fiber is more, strength is low, bar evenness is slightly worse, but dye, wear-resisting property it is preferable.Such yarn is chiefly used in pile, such as
Sweater, sweat shirt etc..It is well known that its moisture pick-up properties of cotton fiber is good, it is comfortable and easy to wear, but when the volume of perspiration of people is slightly larger, cotton is fine
Dimension can decline because of moisture expantion, fortune and paste on the skin, meanwhile, moisture content divergence speed is also relatively slow, to give human body
Cause a kind of cold wet feeling；Its water imbibition of polyester fiber is small, and water vapour permeability is poor, and production when wearing is easily caused due to its accumulation of static electricity
The raw trouble tangled, is especially easy to produce feeling of oppression and heat in activity.In order to improve polyester property, making it in reservation, its intensity is high,
While the advantages that wearability is good, possess the imitative cotton characteristic such as hydrophilic, wet-guide quick-drying, antistatic, and becomes special suitable for vortex spinning
With polyester staple fiber, domestic and international many research institutions have made a large amount of work in terms of from polyester modification, short fibre,
But it there are no environmentally friendly heavy metal free antimony, continous way polyester device produces, can Direct Spinning, the turbine with hydrophilic wet-guide quick-drying function
Spin the report of dedicated single fiber.
United States Patent (USP) US09/858388, provide a kind of PEG (polyethylene glycol) using 4-20wt% additive amount and
The crosslinking agent of 0.03-0.14wt% additive amount is modified PET polyester, obtains modified poly ester highly viscous enough for spinning
Silk makes fabric have moisture absorption, wear-resisting and fire-retardant etc. performances, knits better than traditional pet fiber
The yarn or fabric of object.But the invention does not refer to whether the modified poly ester uses the continuous of heavy metal free antimony catalyst system
Formula preparation method.
Chinese patent CN102926023B uses sorbierite and polyethylene glycol for modifying agent, is 120-500ppm in additive amount
One or both of antimony-based catalyst catalyst, titanium dioxide or butyl titanate class Titanium series catalyst composite catalyst is made
Electrostatic resistance hydrophile type polyester obtains antistatic hydrophilic polyester fiber after incorporating spinning.But used in the invention claim
Catalyst loading is 120-500ppm, be easy to cause impurity in polyester fondant excessive.
Chinese patent CN1135494A patent uses Oxidized polyolefin hydrocarbon compound as hydrophilic modifier, and adds crosslinking agent
The degree of polymerization of its graft copolymerization is improved, then carries out composite spinning with other polyester to reach moisture absorption, adds crosslinking agent
Polymer will cause the disadvantages of spinnability is poor, and fiberizing is poor.
Chinese patent CN103572400A is anti-using the M-phthalic acid substitution PTA and ethylene glycol of addition 0.5-10% weight
Copolyesters should be made, be used for vortex spinning special polyester staple fiber, fiber modulus can be effectively reduced, rigidity reduces, and flexibility obtains
To improve.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of the hydrophilic of simple process to lead wet whirlpool
Stream spins the production method of dedicated polyester staple fiber.The present invention will have by carrying out MOLECULE DESIGN to polyester system macromolecular structure
There is hygroscopic reactive functionality to be introduced into based on PET in the polyester system of structure, is urged in the process using non-heavy metal titanium
Agent and compound thermal oxidation stabilizer make polyester fondant become hydrophily from hydrophobicity, more environmentally-friendly, stable, then cut through abnormity
It can be applied to ordinary polyester together-cutting in proportion so that obtaining turbine spins special polyester staple fiber after face spinning, post-processing
Manufacture the fabric with permanent Moisture absorbing & quick drying property.
The present invention realizes by following technical solution:
A kind of hydrophilic production method for leading wet vortex spinning dedicated polyester staple fiber, use three kettle process polyester devices into
Row production, the specific steps are as follows:
(1) be (1.0-2.1) by molar ratio: 1 terephthalic acid (TPA) and ethylene glycol modulate in-tank mixing in slurry, while to
Slurry modulates the ethylene glycol solution that Titanium series catalyst is added in tank, later will above-mentioned configured slurry injection reaction kettle of the esterification into
Row esterification；After reaction, the bishydroxyethyl terephthalate that directly generates esterification and hydrophilic modifier, compound
Prepolymerization reaction kettle is sequentially entered after the ethylene glycol solution mixing of thermal oxidation stabilizer and final polycondensation reaction kettle carries out pre-polymerization respectively
And polycondensation reaction, obtain hydrophilic polymerized ester melt；Wherein: the additive amount of effective titanium ion is (with poly- in the Titanium series catalyst
Ester theoretical weight is than meter) it is 2~6ppm；The additive amount of the hydrophilic modifier is the 1~10% of polyester theoretical weight；
(2) by hydrophilic polymerized ester melt obtained above after booster pump is pressurized, it is configured melt heat exchanger and quiet
The melt pipe of state mixer is delivered to device for spinning, inputs spinning manifold by metering pump-metered, squeezes out through profile spinneret
Oil by center ring blowing cooling, spin finishing, winding, winding, fall bucket, boundling, boundling oil, drawing-off, drawing-off immersion oil, drawing-off
Oil bath, nervous thermal finalization, drawing-off be cooling to oil, crimps, crimps and oils, relaxation heat setting, merge with conventional fibre, cut off, beat
Vortex spinning dedicated polyester staple fiber is made in packet.Wherein spin finishing, winding oil oil solution dedicated using preceding spinning, and drawing-off immersion oil is led
Stretch oil bath, drawing-off it is cooling oil, crimp oil it is oil solution dedicated using rear spinning.
In the present invention, in step (1), the Titanium series catalyst is selected from titanium ethylene glycolate, four isopropyl of butyl titanate or metatitanic acid
At least one of ester；Preferably, the additive amount (in terms of polyester theoretical weight ratio) of effective titanium ion is preferred in Titanium series catalyst
For 4-5ppm.
In the present invention, in step (1), the hydrophilic modifier be selected from straight-chain aliphatic polyethers, cellulose acetate-butyrate, third
It is any in olefin(e) acid, methacrylic acid, acrylamide or vinylacetate；Wherein: straight-chain aliphatic polyethers is polyethylene glycol, gathers
It is any in propylene glycol or polytetrahydrofuran.In the present invention, hydrophilic modifier is preferably that average molecular weight range is 500~2500
Polyethylene glycol.Further preferably molecular weight be 1500-2200 polyethylene glycol.
In the present invention, the additive amount of the hydrophilic modifier is preferably the 1~10% of polyester theoretical weight.
In the present invention, in step (1), the reaction temperature of the esterification is 250~270 DEG C, reaction pressure 0.08
~0.12Mpa (gauge pressure), esterification yield are 92~95%.The reaction temperature of the pre-polymerization be 265~285 DEG C, pressure be 2000~
5000Pa,.The reaction temperature of the polycondensation is 275~288 DEG C, and pressure is 10~2000Pa,
In the present invention, in step (1), prepolymerization reaction kettle is up flow type prepolymerization reaction kettle；Final polycondensation reaction kettle is sleeping
Formula band squirrel-cage stirs final polycondensation reaction kettle.
In the present invention, in the copolyesters melt for preparing in step (1), the content of diethylene glycol (DEG) (DEG) remnants for 0.5~
5.0wt%, copolyesters inherent viscosity are 0.65~0.75dlg, and copolyesters content of carboxyl end group is 1~20mol/t.It is preferred that copolymerization
The content of sweet glycol (DEG) remnants is 0.5~2.5wt% in ester, and copolyesters inherent viscosity is 0.67~0.70dlg, copolyesters
Content of carboxyl end group is 8~15mol/t.
In the present invention, in step (2), distribution is continuously conveyed to spinning from conveyance conduit after being pressurized in the copolyesters melt
When cabinet, it is preferred that be additionally arranged melt cooler and static mixer in melt conveying pipeline, it is therefore an objective to eliminate melt pipe
Road radial symmetry gradient.Since the radial flow velocity of polyester fondant in the duct causes pipeline center and tube wall melt quality
Difference, uniform quality when to ensure that melt enters cabinet, thus in the duct be provided with static mixer；In addition using static state
Raw adjusting melt temperature is led in jacketed pipe in mixer.
In the present invention, in step (2), melt conveying pipeline temperature is 260~290 DEG C, preferably 260~280 DEG C；Using
Low-temperature melt spinning, 260~290 DEG C of spinning body temperature, preferably 265~280 DEG C；
In the present invention, the profile spinneret section in step (2) can be " ten " font, " H " shape, " C " shape, L shape,
Y-shaped, " work " shape etc. are one such.
In the present invention, the circular blow temperature of the center circular blow in step (2) is 20~25 DEG C, and pressure is 3.5~5.5kPa.
In the present invention, the surface treatment finish used when oiling in step (2) is in lubricant, antistatic agent, emulsifier
Two kinds and two or more mixtures, and do not contain APEO (alkyl phenol polyoxyethylene ether).It is oiled everywhere using different finish components
And ratio.Spin finishing, winding, which oil, uses preceding spinning oil solution dedicated, and concentration is 0.2~0.4wt%, drawing-off immersion oil, drawing-off oil bath
And drawing-off it is cooling oil, crimp oil use after spin it is oil solution dedicated, drawing-off immersion oil and drawing-off oil bath concentration for 0.3~
0.6wt%, drawing-off is cooling to oil and crimps oil concentration as 1.2~3.0wt%, it is preferred that drawing-off cooling is oiled and crimped
Oil concentration is 1.3~2.5wt%.
Preceding in the present invention to spin flatness, coherent and the convergence that oil solution dedicated main function is increase fiber, quality is matched
Than as follows: the synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 40~70wt%, fatty alcohol polyethenoxy ether class emulsifier
Account for 30~65wt%.Preferably, the synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 45~55wt%, fatty alcohol polyoxy second
Alkene ethers emulsifier accounts for 45~55wt%, and each component summation is 100wt%.
In the present invention, in step (2), winding oils to oil using oil tanker is two-sided, in addition increases at undrawn yarn constriction beam
One spray impregnated oils, it is ensured that the flatness and coherent of profiled filament ensure that precursor during high-speed winding not
Lousiness is preferably generated, the planarization stretched for post-processing provides safeguard.
Spinning is oil solution dedicated in addition to having flatness, coherent and convergence after in the present invention, also to have during operation
There are frictional property and antistatic property, quality proportioning are as follows: the synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 40~70wt%,
Fatty alcohol polyethenoxy ether class emulsifier accounts for 30~65wt%, 5~20wt% of alkyl phosphate salt antistatic agent.Preferably,
The synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 45~55wt%, and fatty alcohol polyethenoxy ether class emulsifier accounts for 40~
50wt%, alkyl phosphate salt 8~15wt% of antistatic agent, each component summation are 100wt%.
In the present invention, in step (2), cooling oil of drawing-off is oiled using two-sided fan-shaped spray, it is ensured that the uniformity to oil
And cooling effect is played to tow；Curling is oiled and is also oiled using spray, is oiled by increasing curling, increases tow through crimping
Flatness afterwards facilitates the control of crimpness (since the big fiber of crimpness is difficult to spin on vortex flow spinner.)
It is of the invention it is critical that in continous way pet reaction process, by stablizing to catalyst system and thermal oxide
The improvement of agent and the participation reaction of hydrophilic modifier, improve esterification, polycondensation reaction rate, degradation reaction are effectively reduced, favorably
In the reduction of post-processing temperature and the hydrophily of raising polyester；Simultaneously by adding melt heat exchanger on melt conveying pipeline
And static mixer, the radial symmetry gradient that melt generates during transportation is eliminated, is effectively reduced due to temperature rise and bring
Polyester degradation；And optimize the selection of finish component and ratio in polyester fiber production process, and change oiling method and number,
It improves pure fiber of washing and spins existing some defects on vortex spinning machine.
In the method for the present invention vortex spinning it is dedicated it is hydrophilic lead wet polyester staple fiber compared with conventional polyester staple fiber, crystallinity
The modulus of decline, fiber reduces；Since the modulus of fiber reduces, the rigidity of fiber is reduced, and flexibility is improved, and is original with it
Material carry out it is pure wash air vortex spinning or with conventional polyester fiber is blended or the production of polyester-viscose blended air vortex spinning, the feel of yarn first
It can be effectively improved；Secondly the spinning efficiency of vortex spinning can be effectively improved, end breakage rate is reduced；Air vortex spinning can be improved in third
The multielement functionality of product increases value-added content of product so that product has preferable moisture absorption, rapid-drying properties.
Compared with prior art, the beneficial effects of the present invention are as follows:
1, the present invention is advised using one kind on continous way polyester flow production line and Direct Spinning melt spinning production line
Modelling produces a kind of hydrophilic production method for leading wet polyester staple fiber, prepares or cuts with domestic and international use batch equipment existing at present
The technology that the similar polyester staple fiber of production is spun in piece melting is compared, with reaction temperature is low, side reaction is few, molecular weight stabilizers, product
The features such as performance height, low energy consumption.
2, the present invention substantially reduces additive amount, effectively reduces using Titanium series catalyst while ensuring catalytic effect
Metal impurities in polyester system improve spinnability of polyester during post-processing.
3, the present invention is in PET macromolecular structure by introducing hydrophilic radical, obtained hydrophilic to lead wet type polyester staple fiber
Due to increasing hydrophilicity in production of polyester, so that forming a large amount of hydrophilic radicals in fiber surface, has and actively inhale
Effect of attached humidity, the wicking groove collective effect with profiled filament, is remarkably improved the hydrophilic of fabric and leads wet effect.
4, in copolyesters made from modification by copolymerization of the present invention hydrophilic modifier be evenly distributed, molecular weight stabilizers；In Direct Spinning
In the process, adjusting of the static mixer to melt temperature, melt thermal degradation is small, and compared with being sliced and spinning, in spinning process, polyethers is split
It vents one's spleen few, achievees the purpose that clean manufacturing process.
5, hydrophilic wet type polyester staple fiber of leading produced by the present invention is due to the finish that uses during oil processing on the surface
Without containing APEO (alkyl phenol polyoxyethylene ether), more meet the requirement of clean manufacturing.
6, production method of the present invention, production run are stablized；Since polyester fiber modulus reduces, flexibility increases, and is using
When the present invention carries out the processing of vortex spinning Pure Yarn, the hardness of resultant yarn can be reduced and overcome viscose glue class yarn excessively softness, body
The disadvantage of bone deficiency；In addition when spinning twisting, fiber under the action of vortex gas flow with vortex inside pipe wall and hollow spindle table
High-speed friction occurs for face, and the cord on profiled filament, which can rub, scrapes such as surface of vortex tube, spindle main component in spinning equipment,
To play good cleaning action, makes finish foulant be difficult to be formed, effectively overcome the defect that resultant yarn is also easy to produce weak twist, make
The pure Air Vortex Spun Yarn of washing that must be produced is soft, and color is deeper, and color is vivid.
Specific embodiment
Embodiment
Raw material terephthalic acid (TPA) and ethylene glycol, are beaten according to a certain ratio；Deploy the ethylene glycol that concentration is 0.04wt%
The ethylene glycol solution of titanium participates in slurry modulation.
Slurry is quantitatively continuously introduced into Horizontal band stirring reaction kettle of the esterification with gear pump, in gauge pressure 0.08-0.15MPa, temperature
Stirring is esterified at 255-265 DEG C, generates intermediate bishydroxyethyl terephthalate, and reaction to esterification yield is at least 92%,
The water that esterification process generates is steamed with ethylene glycol, after fractionated tower separates water, in the ethylene glycol reflux kettle of 99wt%.Terephthaldehyde
Sour double hydroxyl ethyl esters enter prepolymerization reaction kettle by intermediate fluid line.
After polyethylene glycol (molecular weight 1500-2000) enters modulator zone, adds ethylene glycol and be modulated into polyethylene glycol
30wt% ethylene glycol solution adds suitable compound thermal oxidation stabilizer after mixing, is again stirring for being delivered to after 0.5h
Between fluid line up flow type precondensation kettle after mixing with above-mentioned intermediate is pumped into gear, at 270-275 DEG C of temperature,
Prepolymerization reaction is carried out under 2000~5000pa of absolute pressure, obtains precondensation product.
By precondensation product by pressure difference be delivered to Horizontal band squirrel-cage stir final polycondensation reaction kettle, absolute pressure 10~
2000Pa, it is stirred continuously at 278-283 DEG C of temperature, carries out final polycondensation reaction and obtain polyether-modified copolyesters melt.
It is directly fixed through metering pump by melt pipe through polyether-modified hydrophilic polymerized ester melt after booster pump is pressurized
Amount be delivered to filament spinning component, after profile spinneret squeezes out through center circular blow cool and solidify form, by spinning it is ring-like oil and
It winds two-sided oil tanker to oil (oil solution dedicated using the preceding spinning that concentration is 0.2~0.4wt%), and increases at undrawn yarn constriction beam
One spray impregnated oils (concentration is that the preceding spinning of 0.2~0.4wt% is oil solution dedicated), in the winding of 1100~1600m/min
Precursor is made under hauling speed and is sent into fiber barrel；Precursor was balanced by 2~18 hours, and 22~26 strands of precursor are passed through boundling
Mode carries out drawing-off, by soak bath and drawing-off bath (spinning is oil solution dedicated after concentration is 0.3~0.6wt%), to eliminate
Electrostatic, swelling plasticizing, make fiber obtain preliminary antistatic property and frictional property, then stretch by two, control total multiplying power 3.0
~3.4, into nervous thermal finalization (170~210 DEG C of nervous temperature), then oil by drawing-off chilling spray (concentration is 1.3~
The rear spinning of 2.5wt% is oil solution dedicated), then through curling and laxation shaping, and merge with conventional fibre, is most cut off and is packaged afterwards,
It is made that vortex spinning is dedicated hydrophilic to lead wet polyester staple fiber.
Using the vortex spinning produced in the present invention it is dedicated it is hydrophilic lead wet type polyester staple fiber after, it is on probation through spinning user, spin
Yarn good spinning property, main component oil agent foulant significantly reduce, and effectively overcome the defect that resultant yarn is also easy to produce weak twist, simultaneously
The pure Air Vortex Spun Yarn of washing of production is soft, and cloth made of it carries out hydrophilic wet guiding function test, works well.
Polyethers used in each embodiment, Titanium series catalyst system control, the primary quality measure of polyester product is shown in Table 1,
It is hydrophilic to lead wet polyester staple fiber primary quality measure and be shown in Table 2.
1 copolyesters synthesis material formula of table and melt quality index
The hydrophilic wet guiding staple fibre quality index of 2 vortex spinning of table
Claims (9)
1. a kind of hydrophilic production method for leading wet vortex spinning dedicated polyester staple fiber, which is characterized in that it uses three kettle processes
Polyester device is produced, the specific steps are as follows:
(1) be (1.0-2.1) by molar ratio: 1 terephthalic acid (TPA) and ethylene glycol modulate in-tank mixing in slurry, while to slurry
The ethylene glycol solution that Titanium series catalyst is added in tank is modulated, above-mentioned prepared slurry injection reaction kettle of the esterification is subjected to ester later
Change reaction；After reaction, the bishydroxyethyl terephthalate and hydrophilic modifier, compound thermal oxygen directly generated esterification
Prepolymerization reaction kettle is sequentially entered after changing the ethylene glycol solution mixing of stabilizer and final polycondensation reaction kettle carries out pre-polymerization and contracting respectively
Poly- reaction, obtains hydrophilic polymerized ester melt；Wherein: it is described in terms of polyester theoretical weight ratio, in Titanium series catalyst effective titanium from
The additive amount of son is 2~6ppm；The additive amount of the hydrophilic modifier is the 1~10% of polyester theoretical weight；Compound thermal oxide
Stabilizer is bis- (3,5- di-tert-butyl-4-hydroxyl benzyl phosphonic acids mono ethyl ester) calcium salts；Its additive amount is polyester theoretical weight
0.0001~0.0005wt；
(2) it by hydrophilic polymerized ester melt obtained above after booster pump is pressurized, is configured melt heat exchanger and static state is mixed
The melt pipe of clutch is delivered to device for spinning, inputs spinning manifold by metering pump-metered, passes through after profile spinneret squeezes out
Center ring blowing cooling, spin finishing, winding, winding, which oil, falls bucket, boundling, boundling oils, drawing-off, drawing-off immersion oil, drawing-off oil
Bath, nervous thermal finalization, drawing-off be cooling to oil, crimps, crimps and oils, relaxation heat setting, merge with conventional fibre, cut off, be packaged,
Vortex spinning dedicated polyester staple fiber is made；Wherein: profile spinneret section is " ten " font, " H " shape, " C " shape, L shape, " Y "
It is any in shape or " work " shape, spin finishing, winding oil using it is preceding spin it is oil solution dedicated, winding oil using oil tanker it is two-sided on
In addition oil increases by a spray impregnated boundling at undrawn yarn constriction beam and oils, drawing-off immersion oil, drawing-off oil bath, drawing-off cool down
Oil, curling oil to be spun oil solution dedicated using rear, and cooling oil of drawing-off is oiled using two-sided fan-shaped spray；Increase at curling
Curling oils, using spray mode.
2. production method according to claim 1, which is characterized in that in step (1), the Titanium series catalyst is selected from second two
Alcohol titanium, at least one of butyl titanate or tetraisopropyl titanate；In terms of polyester theoretical weight ratio, in Titanium series catalyst effectively
The additive amount of titanium ion is 4-5ppm.
3. production method according to claim 1, which is characterized in that in step (1), the hydrophilic modifier is selected from straight chain
It is any in aliphatic polyether, cellulose acetate-butyrate, acrylic acid, methacrylic acid, acrylamide or vinylacetate；It is described
The additive amount of hydrophilic modifier is the 4~8% of polyester theoretical weight.
4. production method according to claim 3, which is characterized in that the straight-chain aliphatic polyethers is polyethylene glycol, gathers
It is any in propylene glycol or polytetrahydrofuran.
5. production method according to claim 1, which is characterized in that the temperature of melt pipe is 260 in the step (2)
~285 DEG C, spinning body temperature is 260~285 DEG C.
6. production method according to claim 1, which is characterized in that the blowing temperature of step (2) the spinning center circular blow
Degree is 20~25 DEG C, and pressure is 3.5~5.5kPa.
7. production method according to claim 1, which is characterized in that at the surface used when oiling in the step (2)
Reason finish is smooth agent, two kinds and three kinds in antistatic agent, emulsifier, and does not contain alkyl phenol polyoxyethylene ether；Spin finishing,
Winding oils the oil solution dedicated concentration of preceding spinning used as 0.2~0.4wt%；The rear spinning that drawing-off immersion oil, drawing-off oil bath use is dedicated
Oil concentration is 0.3~0.6wt%, drawing-off is cooling oil and crimp oil the oil solution dedicated concentration of rear spinning that uses for 1.2~
3.0wt%.
8. production method according to claim 1: it is characterized by: in step (2), it is preceding to spin oil solution dedicated quality proportioning
Are as follows: the synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 40~70wt%, and fatty alcohol polyethenoxy ether class emulsifier accounts for 30
~65wt%；After spin oil solution dedicated quality proportioning are as follows: carbon atom number be 16~18 synthesizing ester smooth agent account for 40~70wt%,
Fatty alcohol polyethenoxy ether class emulsifier accounts for 30~65wt%, 5~20wt% of alkyl phosphate salt antistatic agent.
9. production method according to claim 1 or 8, it is characterised in that: in step (2), the preceding oil solution dedicated quality of spinning is matched
Than are as follows: the synthesizing ester smooth agent that carbon atom number is 16~18 accounts for 45~55wt%, and fatty alcohol polyethenoxy ether class emulsifier accounts for
45~55wt%, each component summation are 100wt%.
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| CN105970342B (en) * | 2016-06-30 | 2018-05-04 | 江苏新苏化纤有限公司 | Use the method for the Titanium series catalyst manufacture direct spinning short fiber of PET polyester |
| CN111133027B (en) * | 2017-09-26 | 2022-08-26 | Sabic环球技术有限责任公司 | Copolyester tape |
| CN107938051A (en) * | 2017-12-13 | 2018-04-20 | 武汉纺织大学 | A kind of quick-drying yarn online preparation method of embedded composite spinning |
| CN111100277A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Modified polyether ester for engineering plastic base material and preparation method thereof |
| CN109322003A (en) * | 2018-10-30 | 2019-02-12 | 江苏江南高纤股份有限公司 | High hydrophilic no antimony spun lacing dedicated fiber manufacturing method |
| CN110219085A (en) * | 2019-06-24 | 2019-09-10 | 吴江京奕特种纤维有限公司 | For improving the Yarn spinning method and fabric of fabric moisture water vapour permeability |
| CN114574981B (en) * | 2021-12-07 | 2023-02-28 | 浙江恒逸高新材料有限公司 | Preparation method of polyester staple fiber special for vortex spinning |
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