CN104928773A - Nylon 6 deeply-dyed drawn yarn and production technology thereof - Google Patents
Nylon 6 deeply-dyed drawn yarn and production technology thereof Download PDFInfo
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- CN104928773A CN104928773A CN201510396058.7A CN201510396058A CN104928773A CN 104928773 A CN104928773 A CN 104928773A CN 201510396058 A CN201510396058 A CN 201510396058A CN 104928773 A CN104928773 A CN 104928773A
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Abstract
The invention discloses nylon 6 deeply-dyed drawn yarn and a production technology thereof. The production technology comprises the following steps that stock bin slices are conveyed to a screw extruder; melt extruded by the screw extruder enters a melt metering pump, and nascent fibers are formed by the melt metering pump; the nascent fibers are conveyed to a spinning assembly to be spun into thin flow, and then pass through a side blowing cooling system to form fibers; oiling operation is performed on the formed fibers through an oiling system; the oiled fibers enter a pre-interlacing device; the fibers which are processed through the pre-interlacing device enter two godets; processed fiber yarn strips are conveyed into a main interlacer; yarn guiding is performed on the fiber yarn strips processed through the main interlacer through one godet, and finally winding operation is performed to enable the yarn strips to be evenly and regularly wound into a roll package in a certain shape with a certain volume. The production technology is simple and efficient, the product quality is high, the market requirements can be effectively met, and a wide market prospect is achieved.
Description
Technical field
The invention belongs to field of textiles, be specifically related to a kind of polyamide fibre 6 engrain drafted fibre and production technology thereof.
Background technology
At present, in the market competition of fierceness, the functional product Development and Production of differential high added value has become the developing direction of chinlon 6 filament industry, invention novel product of only constantly bringing forth new ideas, and for novel fabric is created in weaving mill, could win in market competition.Polyamide fibre 6 engrain drafted fibre is one of functional product of high added value, by inventing the specification product of such high-tech and producing in batches, increases value-added content of product, promotes profit on sales.
Summary of the invention
The object of the present invention is to provide a kind of polyamide fibre 6 engrain drafted fibre and production technology thereof, production technology is simple, efficient, and product quality is high, can effectively meet the need of market, and has wide market prospects.
For achieving the above object, the present invention adopts following technical scheme:
A kind of polyamide fibre 6 engrain drafted fibre is divided into two kinds: polyamide fibre 6 engrain has light drafted fibre and polyamide fibre 6 engrain full-dull drafted fibre.Particular product performance parameters: line density 22-77dtex, fracture strength >=4.5g/dtex, elongation at break 38-48%, internet pricing 12-25/rice, boiling water shrinkage 8-11%, oil content 1.0-1.5%, the uniformity≤1.60%, dyeing 4.5 grades.
Production craft step is as follows:
1) by stored in feed bin and provide the section needed for production to be sent to screw extruder;
2) screw extruder section is carried out heating through feed zone, compression section, metering section, melting, metering produce predetermined pressure and extrude from the head of screw rod;
3) melt extruded enters into melt metering pump, melt metering pump then accurate measurement, continus convergence high polymer molten, and produces predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, from spinnerets ejection, forms as-spun fibre in atmosphere;
4) melt sent here by melt metering pump of filament spinning component, removes impurity after filtration, after mixing, from spinnerets micropore, is sprayed into filament bar equably, then forms the good fiber of crystallization orthodromic through the quick cooling of lateral blowing cooling system and slow cooling;
5) fiber after shaping carries out oiling operation through oil feeding system, oils to strand oil feeding system homogeneous constant, and reduce strand and the frictional force in silk road, increase the coherent of silk, eliminate electrostatic, lifting spinning efficiency, guarantees the working (machining) efficiency of subsequent handling;
6) fiber after oiling enters into pre-network device, and pre-network device makes strand tow under comparatively low pressure effect be wound around mutually, oil content evenly, increase the coherent of silk;
7) fiber after pre-network device process imports two draw-off godets, is stretched and HEAT SETTING to strand by the friction speed of two draw-off godets, thus changes the internal structure of silk, makes silk reach quality requirement;
8) again fiber strand silk is sent in master network device, by master network device make strand oil content evenly, increase further the coherent that nexus increases tow, effectively promote spinning efficiency;
9) through the fiber strand silk of master network device operation again through a draw-off godet seal wire, and make strand evenly be coiled into package regularly eventually through winding operation.
Process parameter control is as follows: biphenyl temperature 250-285 DEG C, melt temperature 254-278 DEG C, spin pressure 110-120kgf/cm
2, G.P rotating speed 12.4-17.7rpm, O.P rotating speed 16.5-19.5rpm, quench air speed 0.35-0.6m/s, draw ratio DR1.15-1.25, spin speed 4800-5200m/min.
Remarkable advantage of the present invention is: production technology of the present invention is simple, efficient, and product quality is high, can effectively meet the need of market, and has wide market prospects.
Accompanying drawing explanation
Fig. 1 is the production technological process of polyamide fibre 6 engrain drafted fibre.
Detailed description of the invention
One, engrain drafted fibre production process illustrates:
1, feed bin: store and the section needed for production is provided;
2, screw extruder: section is carried out heating through feed zone, compression section, metering section, melting, metering produce predetermined pressure and extrude from the head of screw rod;
3, melt metering pump: accurate measurement, continus convergence high polymer molten, and produce predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, from spinnerets ejection, form as-spun fibre in atmosphere;
4, filament spinning component: the melt that measuring pump is sent here, remove impurity after filtration, after mixing, certain shearing force and reasonable pressure setting under from spinnerets wire vent hole, be sprayed into filament bar uniformly, then through lateral blowing cooling effect and form appropriate crystalline fiber;
5, lateral blowing system: the fiber that strand cools fast and slow cooling formation crystallization orthodromic is good that spinneret orifice is sprayed;
6, oil feeding system: homogeneous constant strand is oiled: the frictional force 1) reducing strand and silk road; 2) coherent of silk is increased; 3) eliminate electrostatic, promote spinning efficiency, guarantee later process working (machining) efficiency;
7, pre-network device: make the oil content of strand evenly, increase the coherent of silk;
8, draw-off godet: stretched and HEAT SETTING to strand by the friction speed of draw-off godet, thus the internal structure changing silk, make the quality requirement that silk reaches relevant;
9, master network device: make the oil content of strand evenly, increase further silk and beat the coherent that nexus increases tow, effectively promote spinning efficiency;
10, reel: make strand evenly be wound into spinning cake regularly and the package of control fixed length and weight.
Two, engrain drafted fibre finished product physical property:
1,polyamide fibre 6 engrain has light drafted fibre
2, polyamide fibre 6 engrain full-dull drafted fibre
Three, engrain drafted fibre technological condition:
1, biphenyl temperature: 250-285 DEG C
2, melt temperature: 254-278 DEG C
3, pressure is spun: 110-120kgf/cm
2
4, G.P rotating speed: 12.4-17.7rpm
5, O.P rotating speed: 16.5-19.5rpm
6, quench air speed: 0.35-0.6m/s
7, draw ratio DR:1.15-1.25
8, speed is spun: 4800-5200m/min.
Four, a difficult problem is captured:
1, engrain drafted fibre is under the condition of more than 5000m/min high-speed spinning, and all kinds of process conditions configuration is proper, and spin condition, product quality is normal, AA leads up to 96%;
2, add in feed bin and prevent oxidant, protection raw material is not oxidized;
3, by cooperating with the large factory of European chemical industry, the quality of optimizing raw material section, solve and produce that ingot interdigit winding tension variation in engrain drafted fibre process is large, the variation of broken end finished product elongation at break large abnormal, promote dyeing quality and efficiency, increase back segment Colour Difference competitiveness;
4, develop new finish by improveing spinning oil with finish supplier cooperation, and be applied to this series of products, improve the frictional property of strand in spinning production process, antistatic behaviour, holding, improve follow-up woven efficiency, reduce woven filoplume incidence.
5, improve engrain drafted fibre spinning crystal property transitivity index uniformity by adjustment cooling and oil feeding system, solve the exception of product dyeing streak;
6, by the optimization improvement configuration that assembly is filled a prescription, reduce broken end, waft silk, improve the spinnability of product;
7, by constantly adjusting temperature, the pressure of spinning extruder, selecting the most rational process conditions, improving spinnability and the product quality of spinning;
8, pass through the levelness of adjustment up-coiler, perpendicularity and component optimization, improve spinning cake shaping, improve outward appearance and back segment processing backing-off performance, promote weaving efficiency;
9, by the discharge-amount of adjustment net control gas, draw optimal nexus, improve the holding of tow;
10, adjust the speed of drawing-off, improve and loosen rate, optimize process efficiency and quality after the shaping and backing-off performance of spinning cake, lifting;
11, develop special silk to lead and oil nozzle, reduce the Silk Road friction, optimizing product quality.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. a polyamide fibre 6 engrain drafted fibre, is characterized in that: be divided into two kinds: polyamide fibre 6 engrain has light drafted fibre and polyamide fibre 6 engrain full-dull drafted fibre.
2. polyamide fibre 6 engrain drafted fibre according to claim 1, is characterized in that: the particular product performance parameters of polyamide fibre 6 engrain drafted fibre: line density 22-77dtex, fracture strength >=4.5g/dtex, elongation at break 38-48%, internet pricing 12-25/rice, boiling water shrinkage 8-11%, oil content 1.0-1.5%, the uniformity≤1.60%, dyeing 4.5 grades.
3. produce a technique for polyamide fibre 6 engrain drafted fibre as claimed in claim 1, it is characterized in that: processing step is as follows:
1) by stored in feed bin and provide the section needed for production to be sent to screw extruder;
2) screw extruder section is carried out heating through feed zone, compression section, metering section, melting, metering produce predetermined pressure and extrude from the head of screw rod;
3) melt extruded enters into melt metering pump, melt metering pump then accurate measurement, continus convergence high polymer molten, and produces predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, from spinnerets ejection, forms as-spun fibre in atmosphere;
4) melt sent here by melt metering pump of filament spinning component, removes impurity after filtration, after mixing, from spinnerets micropore, is sprayed into filament bar equably, then forms the good fiber of crystallization orthodromic through the quick cooling of lateral blowing cooling system and slow cooling;
5) fiber after shaping carries out oiling operation through oil feeding system, oils to strand oil feeding system homogeneous constant, and reduce strand and the frictional force in silk road, increase the coherent of silk, eliminate electrostatic, lifting spinning efficiency, guarantees the working (machining) efficiency of subsequent handling;
6) fiber after oiling enters into pre-network device, and pre-network device makes strand tow under comparatively low pressure effect be wound around mutually, oil content evenly, increase the coherent of silk;
7) fiber after pre-network device process imports two draw-off godets, is stretched and HEAT SETTING to strand by the friction speed of two draw-off godets, thus changes the internal structure of silk, makes silk reach quality requirement;
8) again fiber strand silk is sent in master network device, by master network device make strand oil content evenly, increase further the coherent that nexus increases tow, effectively promote spinning efficiency;
9) through the fiber strand silk of master network device operation again through a draw-off godet seal wire, and make strand evenly be coiled into package regularly eventually through winding operation.
4. technique according to claim 3, is characterized in that: process parameter control is as follows: biphenyl temperature 250-285 DEG C, melt temperature 254-278 DEG C, spin pressure 110-120kgf/cm
2, G.P rotating speed 12.4-17.7rpm, O.P rotating speed 16.5-19.5rpm, quench air speed 0.35-0.6m/s, draw ratio DR1.15-1.25, spin speed 4800-5200m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510396058.7A CN104928773A (en) | 2015-07-08 | 2015-07-08 | Nylon 6 deeply-dyed drawn yarn and production technology thereof |
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| CN201510396058.7A CN104928773A (en) | 2015-07-08 | 2015-07-08 | Nylon 6 deeply-dyed drawn yarn and production technology thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118638A (en) * | 2020-01-10 | 2020-05-08 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY full-dull crystal yarn |
| CN111218723A (en) * | 2020-01-10 | 2020-06-02 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY semi-dull skintone yarn |
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| CN104178827A (en) * | 2014-07-24 | 2014-12-03 | 福建凯邦锦纶科技有限公司 | Production technology of novel fine-denier porous fiber nylon |
| CN104480557A (en) * | 2014-11-27 | 2015-04-01 | 烟台华润锦纶有限公司 | Chinlon 6 high-strength and fine-denier full-drawn yarns with flattened circular section and preparation method thereof |
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2015
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602201B2 (en) * | 1992-07-03 | 2004-01-28 | Nylstar Sa | Shaped-section fine-fibre filament yarn and method of producing it |
| EP1481118B1 (en) * | 2002-03-01 | 2005-12-14 | INVISTA Technologies S.à.r.l. | Methods for manufacture of mixed polyamide yarns |
| CN1807709A (en) * | 2006-02-15 | 2006-07-26 | 南通文凤化纤有限公司 | Production method for three-leaf big-bright full-drawn yarn of nylon 6 |
| CN102493016A (en) * | 2011-12-21 | 2012-06-13 | 苏州大学 | Porous superfine polyamide 6 fully-drawn yarn, preparation method thereof, and equipment thereof |
| CN102747438A (en) * | 2012-06-28 | 2012-10-24 | 浙江台华新材料股份有限公司 | Production method for 20D/24F complete-extinction nylon 6 fully-drawn yarn |
| CN103849947A (en) * | 2012-12-07 | 2014-06-11 | 浙江锦盛控股集团有限公司 | Preparation method of chinlon deglossed FDY (Full Drawn Yarn) fine-denier porous yarn |
| CN103088501A (en) * | 2013-01-25 | 2013-05-08 | 长乐力恒锦纶科技有限公司 | Manufacturing process of modified polyamide yarn |
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| CN104480557A (en) * | 2014-11-27 | 2015-04-01 | 烟台华润锦纶有限公司 | Chinlon 6 high-strength and fine-denier full-drawn yarns with flattened circular section and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118638A (en) * | 2020-01-10 | 2020-05-08 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY full-dull crystal yarn |
| CN111218723A (en) * | 2020-01-10 | 2020-06-02 | 长乐力恒锦纶科技有限公司 | Production method of chinlon 6FDY semi-dull skintone yarn |
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Application publication date: 20150923 |