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CN109610065A - A kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre - Google Patents

A kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre Download PDF

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Publication number
CN109610065A
CN109610065A CN201910015784.8A CN201910015784A CN109610065A CN 109610065 A CN109610065 A CN 109610065A CN 201910015784 A CN201910015784 A CN 201910015784A CN 109610065 A CN109610065 A CN 109610065A
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CN
China
Prior art keywords
delustring
regenerated fiber
polyamide fibre
elastic filament
silk
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CN201910015784.8A
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Chinese (zh)
Inventor
史双进
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Changle Liheng Polyamide Technology Co Ltd
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Changle Liheng Polyamide Technology Co Ltd
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Priority to CN201910015784.8A priority Critical patent/CN109610065A/en
Publication of CN109610065A publication Critical patent/CN109610065A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/326Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic the elastic properties due to the construction rather than to the use of elastic material
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00Complete machines for producing artificial threads
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

The present invention provides a kind of production technologies of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre, the production process of the 6 regenerated fiber delustring elastic filament DTY of production process and polyamide fibre including 6 regenerated fiber delustring POY precursor of polyamide fibre.The technological process of production of the invention is simple, high-efficient, and product quality is high and stablizes, and can effectively meet the needs of market, have broad application prospects, while realize the recycling to leftover pieces, improves value-added content of product, environmental protection, energy conservation.

Description

A kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre
[technical field]
The present invention relates to the manufacturing technology of spinning, especially a kind of elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre Production technology.
[background technique]
With the development of the social economy, people's environmental consciousness greatly improves.In the production process of spinning, it can generate various Leftover pieces, and these leftover pieces are typically all to scrap processing, this undoubtedly causes very big waste, does not meet environmental protection and energy saving, circulation The idea of development utilized.However existing production technology is honest material both for raw material and specially designs, for leftover pieces Recycling and be not suitable for, it is therefore desirable to design new production technology, produce regenerated fiber using these leftover pieces, to expire Toe ring guarantor, energy-efficient idea of development.
The prior art has been carried out: passing through the waste silk generated in recycling 6 production process of polyamide fibre, the useless of block and abnormal drop etc. of giving up Material obtains the technology of regenerated fiber slice by processing, but the work of production regenerated fiber elastic filament is carried out with regenerated fiber slice Skill is different, and elastic filament its properties that the production technology of different regenerated fiber elastic filament obtains are not also identical, no It is that all elastic filament all have market prospects, accordingly, it is desirable to provide providing a kind of production technology of new elastic filament to produce The elastic filament of superior performance realizes commercial value to meet market needs.
[summary of the invention]
To overcome defect existing for existing equipment, the invention reside in provide a kind of 6 delustring regenerated fiber porous fine denier of polyamide fibre Elastic filament production technology, process flow is short, high-efficient, realizes recycling to leftover pieces, environmental protection and energy saving, and product matter Amount is high, increases product profit.
The present invention is implemented as follows: a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre, packet Include the production process of the 6 regenerated fiber delustring elastic filament DTY of production process and polyamide fibre of 6 regenerated fiber delustring POY precursor of polyamide fibre.
Further, the 6 regenerated fiber delustring POY precursor of polyamide fibre production process the following steps are included:
Step S11, regenerated fiber slice is added in feed bin, is continuously sent to screw extruder;
Step S12, slice enters screw extruder, by the feed zone of screw extruder, pressure under the conditions of certain temperature It is sufficiently mixed melting after contracting section, metering section, is squeezed out under a predetermined from the top of screw rod;
Step S13, the melt of extrusion is transported to spinning pump through melt pipe, after spinning measuring pump-metered continuously not Disconnected ground melt conveying is to filament spinning component, under preset component pressure, after filament spinning component filtering mixing is pressurizeed, then from spinning Melt stream is sprayed in spinneret hole on silk component, then cools and solidifies and forms through lateral-blowing air cooling device, is formed in air As-spun fibre;
Step S14, as-spun fibre after molding oils by oiling device;
Step S15, the as-spun fibre after oiling enters in Network device, under the effect of certain low pressure pressure, makes tow Winding interweaves mutually;
Step S16, after as-spun fibre comes out from Network device, the preliminary draft of two godets is first passed through, two godets tools There is speed difference to form draw ratio DR, and previous godet rotating speed is less than the revolving speed of the latter godet;
Step S17, as-spun fibre is wound into spinning cake after the latter godet comes out, then through up- coiler, obtains pre- It is orientated silk, preoriented yarn is 6 regenerated fiber delustring POY precursor of polyamide fibre.
Further, the production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre will be the following steps are included: will prefetch It is hung over to silk and yarn cutter, the first silk shifting device, first roller, twist arrester, lifting head is successively drawn past by wire leading pipe again on creel Bar, hot tank, coldplate, scroll tube, on-line tension instrument, the second silk shifting device, the second roller, yarn probe, Network device, oil tanker, most Spinning cake is wound by winding device afterwards, obtains 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre.
Further, the certain temperature condition in the step S12 is 260 DEG C.
Further, the preset component pressure in the step S13 is 150Kg.
Further, the draw ratio DR in the step S16 is 1.005, and the revolving speed of previous godet is 4300m/s, The revolving speed of the latter godet is 4320m/s.
Further, other technological parameters in the production process of the 6 regenerated fiber delustring POY precursor of polyamide fibre are as follows: volume Spinning speed around machine is 4300m/min, and biphenyl vapor phase temperature is 259 DEG C, and melt temperature is 258 DEG C, and the revolving speed of spinning pump is 12.1rpm, the revolving speed 24rpm of oiling device, side-blown wind speed are 0.48m/s.
Further, the physical function parameter of preoriented yarn: fiber number 48.5dtex, breaking degree >=3.8CN/dtex, Elongation at break is 70%, 1~2/meter of internet pricing, oil applying rate 0.8%.
Further, the technological parameter of the production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre: elasticizer is raw Production speed is 650m/s, and scroll tube ingot group disk group is combined into 1-7-1, and the temperature of hot tank is 170 DEG C, the second roller/first roller Draw ratio DR is 1.28, D/Y ratio: 2.05, over feed rate(OFR) -3.9, oil tanker revolving speed is 0.55rpm, the angle of the crossing is -28 degree.
Further, the performance parameter of 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre: fiber number 44dtex, fracture are strong Degree >=3.95CN/dtex, elongation at break 28.7%, internet pricing be 60/meter, crimpness >=35%, curling stability >= 33%, boiling water shrinkage 6.5%, oil content 3.0%, yarn cross section is circle, and dyeing grade is 5.0 grades.
The present invention has the advantages that the technological process of production of the invention is simple, high-efficient, product quality is high and stablizes, energy Effectively meet the needs of market, have broad application prospects, while realizing the recycling to leftover pieces, improves product Added value, environmental protection, energy conservation.
[Detailed description of the invention]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the flow chart of 6 regenerated fiber delustring POY precursor of polyamide fibre of the present invention.
Fig. 2 is the flow chart of 6 regenerated fiber delustring elastic filament DTY of polyamide fibre of the present invention.
Fig. 3 is the flow chart of production technology of the present invention.
[specific embodiment]
It please refers to shown in Fig. 1 to 3, the present invention provides a kind of life of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre Production. art, the life of the 6 regenerated fiber delustring elastic filament DTY of production process and polyamide fibre including 6 regenerated fiber delustring POY precursor of polyamide fibre Production process.
The production process of the 6 regenerated fiber delustring POY precursor of polyamide fibre the following steps are included:
Step S11, regenerated fiber slice is added in feed bin, is continuously sent to screw extruder;Wherein slice needs There is the protection of nitrogen, prevents air oxidation;
Step S12, slice enters screw extruder, and slice is melted in screw extruder by electric heating, one Determine to be sufficiently mixed melting after the feed zone of screw extruder, compression section, metering section under the conditions of temperature, under a predetermined It is squeezed out from the top of screw rod;
Step S13, the melt of extrusion is transported to spinning pump through melt pipe, after spinning measuring pump-metered continuously not Disconnected ground melt conveying is to filament spinning component, under preset component pressure, after filament spinning component filtering mixing is pressurizeed, then from spinning Melt stream is sprayed in spinneret hole on silk component, then cools and solidifies and forms through lateral-blowing air cooling device, is formed in air As-spun fibre;
Step S14, as-spun fibre after molding oils by oiling device;It oils and the cohesive force of fiber can be enhanced Friction is reduced, it is antistatic;
Step S15, the as-spun fibre after oiling enters in Network device, under the effect of certain low pressure pressure, makes tow Winding interweaves mutually;It absorbs the oil-containing of strand more uniform, increases the holding of silk;Finish is set to adhere on tow more Add uniformly, spinnability significantly improves, and wire broken rate is substantially reduced, and lousiness ratio reduces during post-processing unwinding, improves polyamide fibre The quality stability of silk;
Step S16, as-spun fibre from Network device come out after, the preliminary draft of two godets is first passed through, to change silk Internal structure, makes silk have certain degree of orientation, and there is two godets speed difference to form draw ratio DR, and previous godet Revolving speed be less than the latter godet revolving speed;
Step S17, as-spun fibre is wound into spinning cake after the latter godet comes out, then through up- coiler, obtains pre- It is orientated silk, preoriented yarn is 6 regenerated fiber delustring POY precursor of polyamide fibre.
The production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre is the following steps are included: hang over yarn for preoriented yarn Yarn cutter, the first silk shifting device, first roller, twist arrester, lifting head bar, hot tank, cold is successively drawn past by wire leading pipe again on frame But plate, scroll tube, on-line tension instrument, the second silk shifting device, the second roller, yarn probe, Network device, oil tanker, finally by winding Device is wound into spinning cake, obtains 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre.
Wherein, preoriented yarn is hung over and is drawn again by wire leading pipe on creel, guide the transmission of strand.Using chopping Whether device there is exception by yarn probe detection tow, and yarn probe feedback broken yarn signal or abnormal signal are to chopping when occurring abnormal Device, yarn cutter cut off strand when receiving broken yarn signal or abnormal signal;When Yarn break, yarn probe can in time feed back information To yarn cutter, yarn cutter cuts off silk, and first roller is no longer for that, there is no strand process, can prevent first sieve in the entire the Silk Road of silk It draws and the second roller wrapping, apron wrapping, to protect equipment safety operation;
Silk is moved back and forth by the first silk shifting device, by changing silk in real time to the position of the rubbing surface of equipment, is come Reduce abrasion;
Then, silk passes through first roller, and the apron and roller on first roller hold strand together, fetter strand must solid Fixed, surface of roller cannot be damaged by foreign matters such as suction gun, billhooks, and apron wants intact, without groove mark, and seamless with surface of roller pressing Otherwise easily there is stiff silk without wrapping in gap, apron;
Strand is fixed on twist arrester by twist arrester, is played the role of preventing strand yarn twist unevenness, prevent vacation by strand It is gone on yarn twist unevenness to precursor during twirl, twist arrester requires flawless, and the axis of twist arrester is without wrapping, and unbiased, operating is just Often;
Then lifting head is carried out by lifting head bar, then silk heats strand through superheated header, hot tank, heating temperature and drawing Stretching process requires to match, and otherwise influences whether the curling, dyeing and thermal finalization effect of silk, also stiff silk easily occurs and dyeing is abnormal Situations such as;
Silk from hot tank come out after, by coldplate, the effect of coldplate is the fixation of the coiled structure after false twisting to silk, If cooling is bad or uneven, the coiled structure that silk is formed in false-twisted process influences to dye and yarn with regard to uneven Elasticity leads to abnormal quality;
Silk from coldplate come out after by on-line tension detector, the tension of silk is measured in real time, is monitored;Online Power instrument detection yarn passes through the operation conditions of every route of computer online observation all the time on line, to the biggish yarn of fluctuation Line may determine that abnormal conditions by the curve fluctuated and choose abnormal yarn in time;
Then silk is using scroll tube, and the effect of scroll tube is that generate mechanical distortion stress so as to deformation processing be elastic force The core of silk produces component;
Silk from scroll tube come out after, silk is moved back and forth by the second silk shifting device, by changing silk in real time to equipment Rubbing surface position, come reduce abrasion;
Then silk stretches silk by the speed difference of the second roller and first roller again through the second roller;
Silk passes through yarn probe later, and yarn probe can be in time by information feedback to yarn cutter when abnormal, and yarn cutter cuts off silk, First roller no longer for there is no strand processes in the entire the Silk Road of silk, can prevent first roller and the second roller wrapping, apron twines Silk, to protect equipment safety operation;
Then silk enters Network device, generates nexus, nexus is to form network-like section by compressed air purging strand Point increases strand holding, facilitates downstream client to unwind and arranges;
Followed by silk oils to silk by oil tanker by oil tanker, and the effect to oil is mainly to elastic filament plus appropriate Finish, effect be improve fiber convergence, increase the flatness of fiber, improve the antistatic property of fiber, road is knitted after adaptation The needs made;
Last silk enters winding device, by winding device by the uniform well-regulated package of strand at the bullet of a certain size shape Power silk.
A specific embodiment:
The production process of the 6 regenerated fiber delustring POY precursor of polyamide fibre the following steps are included:
Step S11, regenerated fiber slice is added in feed bin, is continuously sent to screw extruder;Wherein slice needs There is the protection of nitrogen, prevents air oxidation;
Step S12, slice enters screw extruder, and slice is melted in screw extruder by electric heating, 260 At a temperature of DEG C, be sufficiently mixed melting by the feed zone of screw extruder, compression section, after metering section, under a predetermined from The top of screw rod squeezes out;
Step S13, the melt of extrusion is transported to spinning pump through melt pipe, and biphenyl vapor phase temperature is 259 DEG C, melt Temperature is 258 DEG C, for keeping the temperature to melt, prevents melt because performance changes or circulates not temperature change in pipeline Smooth to influence production stabilization, continuously melt conveying turns to filament spinning component, spinning pump after spinning measuring pump-metered Speed is 12.1rpm, in the case where preset component pressure is 150Kg, after filament spinning component filters mixing pressurization, then from spinning group Melt stream is sprayed in hole on part on spinneret, then cools and solidifies and forms through lateral-blowing air cooling device, is formed in air just Raw fiber, wherein the side-blown wind speed of lateral-blowing air cooling device is 0.48m/s;
Step S14, as-spun fibre after molding oils by oiling device;It oils and the cohesive force of fiber can be enhanced Friction is reduced, it is antistatic;Oiling device is finishing oil pump, the revolving speed 24rpm of oiling device in specific implementation;
Step S15, the as-spun fibre after oiling enters in Network device, in the case where certain low pressure pressure is 1Kg effect, makes Tow winds mutually intertexture;It absorbs the oil-containing of strand more uniform, increases the holding of silk;Adhere to finish on tow Must be more uniform, spinnability significantly improves, and wire broken rate is substantially reduced, and lousiness ratio reduces during post-processing unwinding, improves The quality stability of Polyamide Yarns;Low pressure is that network adds too many in order to prevent, and silk is inextricable during subsequent scroll tube backtwisting, It causes tightly to put silk;
Step S16, as-spun fibre from Network device come out after, the preliminary draft of two godets is first passed through, to change silk Internal structure makes silk have certain degree of orientation, and draw ratio DR is 1.005, and the revolving speed of previous godet is 4300m/s, after The revolving speed of one godet is 4320m/s.
Step S17, as-spun fibre is wound into spinning cake after the latter godet comes out, then through up- coiler, obtains pre- It is orientated silk, preoriented yarn is 6 regenerated fiber delustring POY precursor of polyamide fibre, and wherein the spinning speed of up- coiler is 4300m/min.To The physical function parameter of preoriented yarn obtained: fiber number 48.5dtex, breaking degree >=3.8CN/dtex, elongation at break are 70%, 1~2/meter of internet pricing, oil applying rate 0.8%.
Then, the production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre is the following steps are included: by obtained pre- Orientation silk hangs over and is successively drawn past yarn cutter, the first silk shifting device, first roller, twist arrester, liter by wire leading pipe again on creel Head rod, hot tank, coldplate, scroll tube, on-line tension instrument, the second silk shifting device, the second roller, yarn probe, Network device, oil tanker, It is wound into spinning cake finally by winding device, obtains 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre.
Wherein, preoriented yarn is hung over and is drawn again by wire leading pipe on creel, guide the transmission of strand.Using chopping Whether device there is exception by yarn probe detection tow, and yarn probe feedback broken yarn signal or abnormal signal are to chopping when occurring abnormal Device, yarn cutter cut off strand when receiving broken yarn signal or abnormal signal;When Yarn break, yarn probe can in time feed back information To yarn cutter, yarn cutter cuts off silk, and first roller is no longer for that, there is no strand process, can prevent first sieve in the entire the Silk Road of silk It draws and the second roller wrapping, apron wrapping, to protect equipment safety operation;
Silk is moved back and forth by the first silk shifting device, by changing silk in real time to the position of the rubbing surface of equipment, is come Reduce abrasion;
Then, silk passes through first roller, and the apron and roller on first roller hold strand together, fetters strand Fixed, surface of roller cannot be damaged by foreign matters such as suction gun, billhooks, and apron wants intact, without groove mark, and seamless with surface of roller pressing Otherwise easily there is stiff silk without wrapping in gap, apron;
Strand is fixed on twist arrester by twist arrester, is played the role of preventing strand yarn twist unevenness, prevent vacation by strand It is gone on yarn twist unevenness to precursor during twirl, twist arrester requires flawless, and the axis of twist arrester is without wrapping, and unbiased, operating is just Often;
Then lifting head is carried out by lifting head bar, then silk heats strand through superheated header, hot tank, heating temperature and drawing Stretching process requires to match, and otherwise influences whether the curling, dyeing and thermal finalization effect of silk, also stiff silk easily occurs and dyeing is abnormal Situations such as;The temperature of hot tank is 170 DEG C, and effect is best;
Silk from hot tank come out after, by coldplate, the effect of coldplate is the fixation of the coiled structure after false twisting to silk, If cooling is bad or uneven, the coiled structure that silk is formed in false-twisted process influences to dye and yarn with regard to uneven Elasticity leads to abnormal quality;
Silk from coldplate come out after by on-line tension detector, the tension of silk is measured in real time, is monitored;Online Power instrument detection yarn passes through the operation conditions of every route of computer online observation all the time on line, to the biggish yarn of fluctuation Line may determine that abnormal conditions by the curve fluctuated and choose abnormal yarn in time;
Then silk is using scroll tube, and the effect of scroll tube is that generate mechanical distortion stress so as to deformation processing be elastic force The core of silk produces component, wherein the false twisting ingot group disk group of scroll tube is combined into 1-7-1, and D/Y ratio: 2.05, D/Y ratios refer to: friction Linear resonance surface velocity/strand of disk (scroll tube) leaves frictional disk (scroll tube) speed;
Silk from scroll tube come out after, silk is moved back and forth by the second silk shifting device, by changing silk in real time to equipment Rubbing surface position, come reduce abrasion;
Then silk stretches silk by the second roller again through the second roller, the second roller/first roller draw ratio DR It is 1.28,
Silk passes through yarn probe later, and yarn probe can be in time by information feedback to yarn cutter, and yarn cutter cuts off silk, first sieve It draws no longer for there is no strand processes in the entire the Silk Road of silk, first roller and the second roller wrapping, apron wrapping, to protect can be prevented Protect equipment safety operation;
Then silk enters Network device, forms network-like node with compressed air purging to strand by Network device, increases strand Holding facilitates downstream client to unwind and arranges;
Followed by silk oils to silk by oil tanker by oil tanker, and oil tanker revolving speed is 0.55rpm, and the effect of oil tanker is main It is to elastic filament plus finish appropriate, effect is the convergence for improving fiber, increases the flatness of fiber, improves the anti-of fiber Static behaviour, the woven needs in road after adaptation;
Last silk enters winding device, by winding device by the uniform well-regulated package of strand at the bullet of a certain size shape Power silk, the speed of production of elasticizer are 650m/s.
Meanwhile other technological parameters: over feed rate(OFR) -3.9, the angle of the crossing (silk package build strand is back and forth formed by angle) For -28 degree.
The performance parameter of 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre prepared by: fiber number 44dtex, fracture Intensity >=3.95g/dtex, elongation at break 28.7%, internet pricing be 60/meter, crimpness >=35%, curling stability >= 33%, boiling water shrinkage 6.5%, oil content 3.0%, yarn cross section is circle, and dyeing grade is 5.0 grades.
The physical index of preoriented yarn POY regenerated fiber:
The physical index of 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre:
The technological process of production of the invention is simple, high-efficient, and product quality is high and stablizes, and can effectively meet the need in market It asks, has broad application prospects, commercial value is high, while realizing the recycling to leftover pieces, improves the additional of product Value, environmental protection, energy conservation.
To avoid the product of porous fine denier from being easy to appear the abnormal conditions such as the silk that floats, fracture of wire, repetition test filament spinning component pressure And assembly method, the pressure production stable state of final choice 150Kg is best, and production stability improves a lot.
By the finish for selecting to be suitble to production multiporous fine denier yarn, suitably oiled according to selection the characteristics of fine-denier porous silk Amount improves the flatness of strand in spinning production process, solves the problems, such as the lousiness in production process.
By detecting the intensity and elongation of preoriented yarn POY, D/Y ratio, the draw ratio of elastic filament are reasonably adjusted by index Each important parameter such as DR, heater temperature, the indices of elastic filament and production stability are all very normal after adjustment, and AA rate is reachable 96%.
JD-213 specification aperture network nozzle is selected according to variety characteristic, as the nozzle of Network device, supply gas pressure is direct-connected Main pipeline ensure that the stabilization of pressure, and pressure oscillation is avoided to cause the problem of network unevenness.
According to the characteristics of multiporous fine denier yarn in the selection of scroll tube disc by selecting good PU disk to make scroll tube disk Piece, PU disk can reduce the damage to yarn, and silk is made to have better bulkiness, and product quality is more stable.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention In scope of the claimed protection.

Claims (10)

1. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre, it is characterised in that: again including polyamide fibre 6 The production process of the 6 regenerated fiber delustring elastic filament DTY of production process and polyamide fibre of raw fibre matting POY precursor.
2. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as described in claim 1, feature It is:
The production process of the 6 regenerated fiber delustring POY precursor of polyamide fibre the following steps are included:
Step S11, regenerated fiber slice is added in feed bin, is continuously sent to screw extruder;
Step S12, slice enters screw extruder, under the conditions of certain temperature by the feed zone of screw extruder, compression section, It is sufficiently mixed melting after metering section, is squeezed out under a predetermined from the top of screw rod;
Step S13, the melt of extrusion is transported to spinning pump through melt pipe, after spinning measuring pump-metered continuously Melt conveying is to filament spinning component, under preset component pressure, after filament spinning component filters mixing pressurization, then from spinning group Melt stream is sprayed in spinneret hole on part, then cools and solidifies and forms through lateral-blowing air cooling device, is formed in air nascent Fiber;
Step S14, as-spun fibre after molding oils by oiling device;
Step S15, the as-spun fibre after oiling enters in Network device, under the effect of certain low pressure pressure, keeps tow mutual Winding interweaves;
Step S16, after as-spun fibre comes out from Network device, the preliminary draft of two godets is first passed through, two godets have speed Degree difference forms draw ratio DR, and previous godet rotating speed is less than the revolving speed of the latter godet;
Step S17, as-spun fibre is wound into spinning cake after the latter godet comes out, then through up- coiler, obtains preorientation Silk, preoriented yarn is 6 regenerated fiber delustring POY precursor of polyamide fibre.
3. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 2, feature Be: the production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre is the following steps are included: hang over creel for preoriented yarn On yarn cutter, the first silk shifting device, first roller, twist arrester, lifting head bar, hot tank, cooling are successively drawn past by wire leading pipe again Plate, scroll tube, on-line tension instrument, the second silk shifting device, the second roller, yarn probe, Network device, oil tanker are filled finally by winding It sets and is wound into spinning cake, obtain 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre.
4. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 3, feature Be: the certain temperature condition in the step S12 is 260 DEG C.
5. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 4, feature Be: the preset component pressure in the step S13 is 150Kg.
6. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 5, feature Be: the draw ratio DR in the step S16 is 1.005, and the revolving speed of previous godet is 4300m/s, the latter godet Revolving speed be 4320m/s.
7. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 5, feature It is: other technological parameters in the production process of the 6 regenerated fiber delustring POY precursor of polyamide fibre are as follows: the spinning speed of up- coiler is 4300m/min, biphenyl vapor phase temperature are 259 DEG C, and melt temperature is 258 DEG C, and the revolving speed of spinning pump is 12.1rpm, are oiled The revolving speed 24rpm of device, side-blown wind speed are 0.48m/s.
8. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 7, feature Be: the physical function parameter of preoriented yarn: fiber number 48.5dtex, breaking degree >=3.8CN/dtex, elongation at break are 70%, 1~2/meter of internet pricing, oil applying rate 0.8%.
9. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 8, feature Be: the technological parameter of the production process of the 6 regenerated fiber delustring elastic filament DTY of polyamide fibre: elasticizer speed of production is 650m/ S, scroll tube ingot group disk group are combined into 1-7-1, and the temperature of hot tank is 170 DEG C, and the second roller/first roller draw ratio DR is 1.28, D/Y ratios: 2.05, over feed rate(OFR) -3.9, oil tanker revolving speed is 0.55rpm, the angle of the crossing is -28 degree.
10. a kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre as claimed in claim 8, special Sign is: the performance parameter of 6 regenerated fiber delustring elastic filament DTY of finished product polyamide fibre: fiber number 44dtex, breaking strength >= 3.95CN/dtex, elongation at break 28.7%, internet pricing are 60/meter, and crimpness >=35% crimps stability >=33%, Boiling water shrinkage 6.5%, oil content 3.0%, yarn cross section are circle, and dyeing grade is 5.0 grades.
CN201910015784.8A 2019-01-08 2019-01-08 A kind of production technology of the elastic filament of 6 delustring regenerated fiber porous fine denier of polyamide fibre Pending CN109610065A (en)

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Application publication date: 20190412