CN105586660A - A production method for hydrophilic moisture-transmitting polyester staple fibers specially used for vortex spinning - Google Patents
A production method for hydrophilic moisture-transmitting polyester staple fibers specially used for vortex spinning Download PDFInfo
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Abstract
A production method for hydrophilic moisture-transmitting polyester staple fibers specially used for vortex spinning is disclosed. The method adopts a continuous polyester production device for production. The method includes subjecting a hydrophilic modifying agent, terephthalic acid (PTA for short) and ethylene glycol (EG for short) to ternary copolymerization under action of a titanium catalyst to obtain hydrophilic polyester melt, increasing pressure through a booster pump, delivering directly through a melt pipe to a spinning device, metering through a metering pump, feeding the melt into a spinning box, spinning through a special-shaped section, performing after-treatment, mixing with common terylene according to a ratio, and chopping to obtain the staple fibers. The method allows hydrophobic polyester melt to be turned into the hydrophilic polyester melt and makes the polyester melt more environmental friendly and stabler. The produced polyester staple fibers specially used for vortex spinning has hydrophilic and moisture-transmitting functions, and can be used for manufacturing fabrics with permanent moisture-absorbing and quick-dry properties.
Description
Technical field
The present invention relates to a kind of manufacture method of polyester staple fiber, particularly one has hydrophilic wet guiding function and is exclusively used in whirlpoolThe manufacture method of the polyester staple fiber of stream spinning process.
Background technology
Air vortex spinning has that speed is fast, output is high, flow process is short and the lot of advantages such as row yielding is high, from the eighties in last century byJapan's Murata has been developed rapidly since releasing. In theory, the adaptability of air vortex spinning is wider, can be used for processingChemical fibre, viscose rayon, fiber crops or cotton etc. multiple high fiber weaving is pure spins or mixed yarn, but in fact vortex spinning carries out the pure chemical fibre that spinsSilk adds but can suffer from larger puzzlement man-hour, and terylene belongs to rigidity high polymer, and the segment activity of its strand is poor, fiberModulus is high, and flexibility is less, and Boardy Feeling has further been strengthened the harder deficiency of Air Vortex Spun Yarn feel as vortex spinning raw material. SeparatelyOuter ordinary polyester short fiber is larger than resistance, gets damp again low, has processing difficulties, row yielding is low, nozzle is easy during for air vortex spinningStop up, need the problems such as frequent clean.
Air Vortex Spun Yarn is with fixed vortex spinning spool, the yarn that replaces the rotor of high speed rotary to spin. Bending on yarnFiber is more, brute force is low, bar evenness is slightly poor, but dyeing, anti-wear performance is better. This type of yarn is used for pile,As sweater, sweat shirt etc. As everyone knows, its moisture pick-up properties of cotton fiber is good, comfortable and easy to wear, but in the time that people's volume of perspiration is slightly large,Cotton fiber can be because of moisture expantion, and its fortune declines and sticks on skin, and meanwhile, moisture content divergence speed is also slower, therebyCause a kind of cold wet sense to human body; Its water imbibition of polyester fiber is little, and water vapour permeability is poor, easily causes due to its accumulation of static electricityWhile dress, produce the trouble of tangling, especially in the time of activity, easily produce feeling of oppression and heat. In order to improve polyester property, it is being retainedWhen the advantages such as its intensity is high, and wearability is good, have hydrophilic, wet-guide quick-drying, the imitative cotton characteristic such as antistatic, and become suitableFor vortex spinning dedicated polyester short fiber, domestic and international many research institutions are doing from aspects such as polyester modification, short fiber spinning techniquesA large amount of work, but there are no environmental protection heavy metal free antimony, continous way polyester device produce, can Direct Spinning, there is hydrophilic leadingThe turbine of wet quick-drying function spins special filamentary report.
US Patent No. 09/858388, provide a kind of 4-20wt% of employing addition PEG (polyethylene glycol) andThe crosslinking agent of 0.03-0.14wt% addition carries out modification to PET polyester, obtains enough full-bodied modified poly ester for spinning,Make fabric have moisture absorption, the performance such as wear-resisting and fire-retardant, it is better than traditional pet fiber fabricYarn or fabric. But this invention is not mentioned this modified poly ester and whether is adopted the continous way of heavy metal free antimony catalyst systemPreparation method.
It is modifier that Chinese patent CN102926023B adopts sorbierite and polyethylene glycol, is 120-500ppm at additionOne or both composite catalysts in antimony-based catalyst catalyst, titanium dioxide or butyl titanate class Titanium series catalyst makeElectrostatic resistance hydrophile type polyester obtains electrostatic resistance hydrophile polyester fiber after incorporating spinning. But use in this invention claimCatalyst loading is 120-500ppm, easily causes in polyester fondant impurity too much.
Chinese patent CN1135494A patent adopts oxidized polyolefin compound as hydrophilic modifying agent, and adds crosslinking agentImprove the degree of polymerization of its graft copolymerization, thereby then carry out composite spinning with other polyester and reach moisture sorption effect, add crosslinking agentPolymer can cause the shortcomings such as spinnability is poor, and fiberizing is poor.
Chinese patent CN103572400A adopts the alternative PTA of M-phthalic acid and the ethylene glycol of interpolation 0.5-10% weight anti-Should make copolyesters, for vortex spinning special polyester staple fiber, can effectively reduce fiber modulus, stiffness degradation, flexibilityBe improved.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide the simple hydrophilic wet vortex spinning of leading of a kind of techniqueThe production method of dedicated polyester short fiber. The present invention, by polyester system macromolecular structure is carried out to MOLECULE DESIGN, will have suctionMoist reactive functionality is incorporated in the polyester system taking PET as agent structure, adopts the catalysis of non-heavy metal titanium in processAgent and compound thermal oxidation stabilizers, make polyester fondant become hydrophily from hydrophobicity, environmental protection more, stable, then cut through abnormityAfter face spinning, post processing, with ordinary polyester together-cutting in proportion, spin special polyester staple fiber thereby obtain turbine, can applyThere is the fabric of permanent Moisture absorbing & quick drying property in manufacture.
The present invention realizes by following technical solution:
A hydrophilic production method of leading wet vortex spinning dedicated polyester short fiber, it adopts three still flow process polyester devices to give birth toProduce, concrete steps are as follows:
(1) be (1.0-2.1) by mol ratio: 1 terephthalic acid (TPA) and ethylene glycol are modulated in-tank mixing at slurry, simultaneously to slurryIn modulation tank, add the ethylene glycol solution of Titanium series catalyst, afterwards the above-mentioned slurry configuring is injected to reaction kettle of the esterification and carry out esterChange reaction; After reaction finishes, the bishydroxyethyl terephthalate directly esterification being generated and hydrophilic modifying agent, compound thermalThe ethylene glycol solution of oxidation stabilizers after mixing, enter successively prepolymerization reaction still and whole batch condensation polymerization reactor carry out respectively pre-polymerization andPolycondensation reaction, obtains hydrophilic polymerized ester melt; Wherein: in described Titanium series catalyst, the addition of effective titanium ion is (to gatherEster theoretical weight is than meter) be 2～6ppm; The addition of described hydrophilic modifying agent is 1～10% of polyester theoretical weight;
(2) by hydrophilic polymerized ester melt obtained above after booster pump supercharging, be configured melt heat exchanger and static mixingThe melt pipe of device is delivered to device for spinning, by measuring pump measure input spinning manifold, after profile spinneret is extruded through inThimble blast-cold but, spin finishing, coiling, coiling oil, fall that bucket, boundling, boundling oil, drawing-off, drawing-off immersion oil, leadStretch that oil bath, nervous thermal finalization, drawing-off coolingly oil, curling, curlingly oil, relaxation heat setting, merge with conventional fibre,Cut off, pack, make vortex spinning dedicated polyester short fiber. Wherein spin finishing, reel oil adopt before spin oil solution dedicated,Drawing-off immersion oil, drawing-off oil bath, drawing-off be cooling to oil, curling oil adopt be after spin oil solution dedicated.
In the present invention, in step (1), described Titanium series catalyst is selected from titanium ethylene glycolate, butyl titanate or metatitanic acid four isopropylsAt least one in ester; Preferably, in Titanium series catalyst, effectively the addition (in polyester theoretical weight ratio) of titanium ion is excellentElect 4-5ppm as.
In the present invention, in step (1), described hydrophilic modifying agent is selected from straight chain aliphatic polyether, cellulose acetate-butyrate,Acrylic acid, methacrylic acid, in acrylamide or vinylacetate any; Wherein: straight chain aliphatic polyether is poly-second twoIn alcohol, polypropylene glycol or PolyTHF any. In the present invention, hydrophilic modifying agent is preferably average molecular weight range and is500～2500 polyethylene glycol. The polyethylene glycol that more preferably molecular weight is 1500-2200.
In the present invention, the addition of described hydrophilic modifying agent is preferably 1～10% of polyester theoretical weight.
In the present invention, in step (1), the reaction temperature of described esterification be 250～270 DEG C, reaction pressure be 0.08～0.12Mpa (gauge pressure), esterification yield is 92～95%. The reaction temperature of described pre-polymerization is 265～285 DEG C, pressure is 2000～5000Pa. The reaction temperature of described polycondensation is 275～288 DEG C, and pressure is 10～2000Pa,
In the present invention, in step (1), prepolymerization reaction still is up flow type prepolymerization reaction still; Whole batch condensation polymerization reactor is for sleepingFormula band squirrel-cage stirs whole batch condensation polymerization reactor.
In the present invention, in step (1) in the copolyesters melt of preparation, the remaining content of diethylene glycol (DEG) (DEG) is 0.5～5.0wt%, copolyesters inherent viscosity is 0.65～0.75dlg, copolyesters content of carboxyl end group is 1～20mol/t. Preferably, copolymerizationIn ester, the remaining content of sweet glycol (DEG) is 0.5～2.5wt%, and copolyesters inherent viscosity is 0.67～0.70dlg, copolymerizationEster content of carboxyl end group is 8～15mol/t.
In the present invention, in step (2), described copolyesters melt is carried and is dispensed to spinning continuously from conveyance conduit after superchargingWhen casing, preferred, in melt Conveying pipeline, set up melt cooler and static mixer, object is for eliminating meltPipeline radial symmetry gradient. Because polyester fondant has caused pipeline center and tube wall melt matter in ducted Radial Flow speedThe difference of amount, quality is even when guaranteeing that melt enters casing, therefore be provided with static mixer in pipeline; Can utilize in additionThe life of leading in static mixer in jacket pipe regulates melt temperature.
In the present invention, in step (2), melt Conveying pipeline temperature is 260～290 DEG C, is preferably 260～280 DEG C; AdoptLow-temperature melt spinning, 260～290 DEG C of spinning body temperatures, are preferably 265～280 DEG C;
In the present invention, the profile spinneret cross section in step (2) can be " ten " font, " H " shape, " C " shape, " L "Shape, " Y " shape, the one wherein such as " work " shape.
In the present invention, the ring blowing temp of the center ring blowing quench in step (2) is 20～25 DEG C, and pressure is 3.5～5.5kPa.
In the present invention, the surface treatment finish adopting while oiling in step (2) is in lubricant, antistatic additive, emulsifying agentTwo kinds and two or more mixture, and do not contain APEO (APES). Oil everywhere and adopt different finish groupsDivide and ratio. Spin finishing, reel to oil before adopting and spin oil solution dedicatedly, concentration is 0.2～0.4wt%, drawing-off immersion oil, leadsStretch that oil bath and drawing-off coolingly oil, curling oiling spun after adopting oil solution dedicatedly, drawing-off immersion oil and drawing-off oil bath concentration is 0.3～0.6wt%, drawing-off is cooling to oil and curling upper oil concentration is 1.2～3.0wt%, preferred, drawing-off is cooling oil and curling onOil concentration is 1.3～2.5wt%.
Before in the present invention, spin oil solution dedicated Main Function and be the flatness, coherent and the convergence that increase fiber, quality proportioning asUnder: the synthesizing ester smooth agent that carbon number is 16～18 accounts for 40～70wt%, and fatty alcohol polyethenoxy ether class emulsifying agent accounts for30～65wt%. Preferably, the synthesizing ester smooth agent that carbon number is 16～18 accounts for 45～55wt%, fatty alcohol polyoxyEthene ethers emulsifying agent accounts for 45～55wt%, and each component summation is 100wt%.
In the present invention, in step (2), reeling oils adopts that oil tanker is two-sided oils, and increases in addition at undrawn yarn constriction bundle placeOne spray impregnated oils, guaranteed flatness and the coherent of profiled filament, ensured precursor in high-speed winding process notShould produce lousiness, the planarization stretching for post processing provides safeguard.
After in the present invention, spin oil solution dedicatedly except possessing flatness, coherent and convergence, also will in operation process, haveFrictional property and antistatic behaviour, its quality proportioning is: the synthesizing ester smooth agent that carbon number is 16～18 accounts for 40～70wt%,Fatty alcohol polyethenoxy ether class emulsifying agent accounts for 30～65wt%, alkyl phosphate salt antistatic additive 5～20wt%. Preferably,Carbon number is that 16～18 synthesizing ester smooth agent accounts for 45～55wt%, fatty alcohol polyethenoxy ether class emulsifying agent accounts for 40～50wt%, alkyl phosphate salt antistatic additive 8～15wt%, each component summation is 100wt%.
In the present invention, in step (2), cooling the oiling of drawing-off adopts two-sided fan-shaped spray to oil, and guarantees the uniformity oilingAnd tow is played to cooling effect; Curling oiling also adopts spray to oil, and by increasing curling oiling, increases tow through volumeFlatness after song, contributes to the control of crimpness (because the large fiber of crimpness is difficult to spinning on vortex flow spinner. )
Key of the present invention is, in continous way pet reaction flow process, by catalyst system and thermal oxidation stabilizerImprovement and the participation reaction of hydrophilic modifying agent, improve esterification, polycondensation reaction speed, effectively reduce degradation reaction, favourableIn the reduction of rear processing temperature and the hydrophily of raising polyester; Simultaneously by set up melt heat exchanger on melt Conveying pipelineAnd static mixer, eliminate the radial symmetry gradient that melt produces in course of conveying, effective reduction is because temperature rise bringsPolyester degraded; And in polyester fiber production process, optimize the selection of finish component and ratio, and change oiling method and number of times,Improve the pure fiber of washing and on vortex spinning machine, spinned some defects that exist.
In the inventive method, special hydrophilic the leading of vortex spinning wet polyester staple fiber compared with conventional polyester short fiber, under degree of crystallinityFall, the modulus of fiber reduces; Because the modulus of fiber reduces, the stiffness degradation of fiber, flexibility is improved, taking its asRaw material carries out pure air vortex spinning or the production with normal polyester fiber blend or polyester-viscose blended air vortex spinning, the first hand of yarn washedSense can effectively improve; The spinning efficiency that secondly can effectively improve vortex spinning, reduces end breakage rate; The 3rd can improve eddy currentThe pluralistic function of spinning products, makes product have good moisture absorption, rapid-drying properties, increases value-added content of product.
Compared with prior art, beneficial effect of the present invention has:
What 1, the present invention adopted is a kind of on continous way polyester flow production line and Direct Spinning melt spinning production line, scaleChange and produce a kind of hydrophilic production method of leading wet polyester staple fiber, with at present existing domestic and international employing batch equipment preparation or sectionMelt spun is produced the technology of similar polyester staple fiber and is compared, and has that reaction temperature is low, side reaction is few, molecular weight is stable, productThe features such as performance is high, energy resource consumption is low.
2, the present invention adopts Titanium series catalyst in guaranteeing catalytic effect, greatly reduces addition, effectively reduces poly-Metal impurities in ester system, improve the spinnability of polyester in rear process.
3, the present invention is by introducing hydrophilic radical in PET macromolecular structure, make hydrophilic lead wet type polyester staple fiber byIn increased hydrophilicity in production of polyester, thereby make to form a large amount of hydrophilic radicals at fiber surface, there is initiatively absorptionMoist effect, with the wicking groove acting in conjunction of profiled filament, what can significantly improve fabric hydrophilicly leads wet effect.
4, in the copolyesters that modification by copolymerization of the present invention makes, hydrophilic modifying agent is evenly distributed, molecular weight is stable; In Direct Spinning mistakeCheng Zhong, the adjusting of static mixer to melt temperature, melt thermal degradation is little, spins comparison with section, in spinning process, polyethersCracking gas is few, reaches the object of cleaner production process.
5, the hydrophilic wet type polyester staple fiber of leading that the present invention makes is because the finish adopting in oil processing process from the teeth outwards does not containThere is APEO (APES), more meet the requirement of cleaner production.
6, production method of the present invention, production run is stable; Because polyester fiber modulus reduces, flexibility increases, and is adoptingThe present invention carries out the man-hour that adds of the pure spinning of vortex spinning, can reduce the hardness of resultant yarn, can overcome again viscose glue class yarn too soft,The shortcoming of body bone deficiency; In addition in when twisting spinning, fiber under the effect of eddy current air-flow with vortex tube inwall and hollow spindleThere is high-speed friction in surface, the rib on profiled filament can rub to be scraped in spinning equipment as the table of the critical piece such as vortex tube, spindleFace, thus play good cleaning action, make finish foulant be difficult to form, effectively overcome resultant yarn and easily produced lacking of weak twistFall into, make to produce pure to wash Air Vortex Spun Yarn soft, color and luster is darker, color is vivid.
Detailed description of the invention
Embodiment
Raw material terephthalic acid (TPA) and ethylene glycol, pull an oar according to a certain ratio; The ethylene glycol that allotment concentration is 0.04wt%The ethylene glycol solution of titanium participates in slurry modulation.
Slurry is quantitatively sent into continuously Horizontal band with gear pump and is stirred reaction kettle of the esterification, in gauge pressure 0.08-0.15MPa, temperatureAt 255-265 DEG C, stir and carry out esterification, generate intermediate bishydroxyethyl terephthalate, react to esterification yield and be at least92%, the water that esterification process generates steams with ethylene glycol, after fractionating column divides water outlet, and the ethylene glycol backflow still of 99wt%In. Bishydroxyethyl terephthalate enters prepolymerization reaction still by intermediate pipeline.
Polyethylene glycol (molecular weight is 1500-2000) enters after modulator zone, adds ethylene glycol polyethylene glycol is modulated into30wt% ethylene glycol solution, mixes the appropriate compound thermal oxidation stabilizers of rear interpolation, carries after again stirring 0.5hTo intermediate pipeline, after mixing with above-mentioned intermediate, send into up flow type precondensation still with gear pump, in temperature270-275 DEG C, carries out prepolymerization reaction under absolute pressure 2000～5000pa, obtain precondensation product.
Precondensation product is delivered to Horizontal band squirrel-cage by pressure reduction and stirs whole batch condensation polymerization reactor, absolute pressure 10～At 2000Pa, temperature 278-283 DEG C, constantly stir, carry out whole polycondensation reaction and obtain polyether-modified copolyesters melt.
After booster pump supercharging, directly quantitatively defeated through measuring pump by melt pipe through polyether-modified hydrophilic polymerized ester meltDeliver to filament spinning component, after profile spinneret is extruded, through the moulding of center ring blowing quench cooling curing, oil and reel through spinning is ring-likeTwo-sided oil tanker oils (working concentration is 0.2～0.4wt% before spin oil solution dedicated), and has increased by one at undrawn yarn constriction bundle placeSpray impregnated oils (concentration is 0.2～0.4wt% before spin oil solution dedicated), in the coiling traction of 1100～1600m/minUnder speed, make precursor and send in fiber barrel; Precursor, through 2～18 hours balances, passes through boundling by 22～26 strands of precursorMode is carried out drawing-off, through soak bath and drawing-off bath (concentration is 0.3～0.6wt% then spin oil solution dedicated), to eliminateStatic, swelling plasticizing, make fiber obtain preliminary antistatic behaviour and frictional property, then stretches through two roads, controls total multiplying power and exist3.0～3.4, enter nervous thermal finalization (170～210 DEG C of nervous temperature), then through the drawing-off chilling spray (concentration that oilsBe 1.3～2.5wt% after spin oil solution dedicated), then through curling and laxation shaping, and merge with conventional fibre, finally by cut-outAnd packing, make the special hydrophilic wet polyester staple fiber of leading of vortex spinning.
Adopt special hydrophilic the leading after wet type polyester staple fiber of vortex spinning of producing in the present invention, on probation through spinning user, spinning canThe property spun is good, critical piece oil agent foulant obviously reduces, and has effectively overcome resultant yarn and easily produce the defect of weak twist, simultaneously rawProduce pure to wash Air Vortex Spun Yarn soft, the cloth made from it carries out hydrophilic wet guiding function test, respond well.
The main quality index of polyethers that each embodiment uses, the control of Titanium series catalyst system, polyester product is in table 1,The hydrophilic main quality index of polyester staple fiber that wets of leading is in table 2.
Table 1 copolyesters synthesis material formula and melt quality index
The hydrophilic wet guiding staple fibre quality index of table 2 vortex spinning
Claims (13)
1. a hydrophilic production method of leading wet vortex spinning dedicated polyester short fiber, is characterized in that, it adopts three still flow processs poly-Ester apparatus is produced, and concrete steps are as follows:
(1) be (1.0-2.1) by mol ratio: 1 terephthalic acid (TPA) and ethylene glycol are modulated in-tank mixing at slurry, simultaneously to slurryIn modulation tank, add the ethylene glycol solution of Titanium series catalyst, afterwards the above-mentioned slurry preparing is injected to reaction kettle of the esterification and carry out esterChange reaction; After reaction finishes, the bishydroxyethyl terephthalate directly esterification being generated and hydrophilic modifying agent, compound thermalThe ethylene glycol solution of oxidation stabilizers after mixing, enter successively prepolymerization reaction still and whole batch condensation polymerization reactor carry out respectively pre-polymerization andPolycondensation reaction, obtains hydrophilic polymerized ester melt; Wherein: described in polyester theoretical weight ratio, effective in Titanium series catalystThe addition of titanium ion is 2～6ppm; The addition of described hydrophilic modifying agent is 1～10% of polyester theoretical weight;
(2) by hydrophilic polymerized ester melt obtained above after booster pump supercharging, be configured melt heat exchanger and static mixingThe melt pipe of device is delivered to device for spinning, by measuring pump measure input spinning manifold, after profile spinneret is extruded through inThimble blast-cold but, spin finishing, coiling, coiling oil, fall that bucket, boundling, boundling oil, drawing-off, drawing-off immersion oil, leadStretch that oil bath, nervous thermal finalization, drawing-off coolingly oil, curling, curlingly oil, relaxation heat setting, merge with conventional fibre,Cut off, pack, make vortex spinning dedicated polyester short fiber; Wherein: spin finishing, coiling spin oil solution dedicated before oiling and adopting,Drawing-off immersion oil, drawing-off oil bath, drawing-off be cooling to oil, curling oil adopt be after spin oil solution dedicated.
2. production method according to claim 1, is characterized in that, in step (1), described Titanium series catalyst is selected from secondGlycol titanium, at least one in butyl titanate or tetraisopropyl titanate; In polyester theoretical weight ratio, in Titanium series catalystEffectively the addition of titanium ion is 4-5ppm.
3. production method according to claim 1, is characterized in that, in step (1), described hydrophilic modifying agent is selected from directlyChain fatty adoption ether, cellulose acetate-butyrate, acrylic acid, methacrylic acid, in acrylamide or vinylacetate any;The addition of described hydrophilic modifying agent is 4～8% of polyester theoretical weight.
4. production method according to claim 3, is characterized in that, described straight chain aliphatic polyether is polyethylene glycol, poly-In propane diols or PolyTHF any.
5. production method according to claim 1, is characterized in that, in step (1), and described compound thermal oxidation stabilizersFor two (3,5-di-tert-butyl-4-hydroxyl benzyl phosphonic acids mono ethyl ester) calcium salt; Its addition be 0.0001 of polyester theoretical weight～0.0005wt。
6. production method according to claim 1, is characterized in that, in described step (2), the temperature of melt pipe is260～285 DEG C, spinning body temperature is 260～285 DEG C.
7. production method according to claim 1, is characterized in that, in described step (2), profile spinneret cross section is " ten "In font, " H " shape, " C " shape, " L " shape, " Y " shape or " work " shape any.
8. production method according to claim 1, is characterized in that, the blowing temperature of described step (2) spinning center ring blowing quenchDegree is 20～25 DEG C, and pressure is 3.5～5.5kPa.
9. production method according to claim 1, is characterized in that, the surface adopting while oiling in described step (2)Reason finish is in smooth agent, antistatic additive, emulsifying agent two kinds and three kinds, and does not contain APES; SpinningOil, reel oil adopt before to spin oil solution dedicated concentration be 0.2～0.4wt%; After drawing-off immersion oil, drawing-off oil bath employingSpinning oil solution dedicated concentration is 0.3～0.6wt%, drawing-off is cooling oil and curling oil adopt after spin oil solution dedicated concentration and be1.2～3.0wt％。
10. production method according to claim 1: it is characterized in that: in step (2), frontly spin oil solution dedicated quality and joinThan being: the synthesizing ester smooth agent that carbon number is 16～18 accounts for 40～70wt%, fatty alcohol polyethenoxy ether class emulsifying agentAccount for 30～65wt%; After spin oil solution dedicated quality proportioning and be: the synthesizing ester smooth agent that carbon number is 16～18 accounts for 40～70wt%, fatty alcohol polyethenoxy ether class emulsifying agent accounts for 30～65wt%, alkyl phosphate salt antistatic additive 5～20wt%.
11. according to the production method described in claim 1 or 10, it is characterized in that: in step (2), frontly spin oil solution dedicated matterAmount proportioning is: the synthesizing ester smooth agent that carbon number is 16～18 accounts for 45～55wt%, fatty alcohol polyethenoxy ether class breastAgent accounts for 45～55wt%, and each component summation is 100wt%
12. production methods according to claim 1, is characterized in that, in step (2), reeling oils adopts oil tanker two-sidedOil, increase in addition by a spray impregnated boundling at undrawn yarn constriction bundle place and oil.
13. production methods according to claim 1, is characterized in that, in step (2), the cooling employing that oils of drawing-off is two-sidedFan-shaped spray oils; Increase curling oiling at curling place, adopt spray mode.
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| CN105970342A (en) * | 2016-06-30 | 2016-09-28 | 江苏新苏化纤有限公司 | Method for manufacturing directly-spun PET (polyethylene glycol terephthalate) polyester staple fibers by aid of titanium catalysts |
| 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 |
| 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 |
| 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 |
| CN111133027A (en) * | 2017-09-26 | 2020-05-08 | Sabic环球技术有限责任公司 | Copolyester tape |
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| CN114574981A (en) * | 2021-12-07 | 2022-06-03 | 浙江恒逸高新材料有限公司 | Preparation method of polyester staple fiber special for vortex spinning |
| CN118048708A (en) * | 2024-04-16 | 2024-05-17 | 比音勒芬服饰股份有限公司 | Moisture-absorbing quick-drying polyester fiber and fabric |
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