CN102443859A - Production method of fine-denier porous POY black yarn - Google Patents
Production method of fine-denier porous POY black yarn Download PDFInfo
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Abstract
The invention discloses a production method of a fine-denier porous POY black yarn. The method comprises the following steps of: drying semi-dull slices, drying black masterbatch, adding the slices and the black masterbatch material into a screw extruder, fusing the added materials in the screw extruder, respectively processing the fused materials in a metering pump and a spinning beam, spinning on a pack, cooling the materials by lateral blowing, applying oil on strands, processing the strands in draw-off godets GR1 and GR2, winding and shaping, and inspecting products. The method is characterized in that the step of drying the black masterbatch comprises the following sub-steps of: based on a continuous drying mode, firstly, adding the black masterbatch into a crystallization and drying tank, introducing heated dry air from the lower part of the crystallization and drying tank, and blowing out the heated dry air from the top of the crystallization and drying tank so as to dry the black masterbatch, wherein the drying time is 2 hours, the dried black masterbatch falls into an intermediate material storage bin for storage under the crystallization and drying tank, and the black masterbatch is further injected by a masterbatch injector under the intermediate material storage bin. The production method of the fine-denier porous POY black yarn has high masterbatch spinnability and better cooling effect, and can improve the oil application uniformity of spinning cakes and the productivity.
Description
Technical field
The present invention relates to a kind of, the production method of the black silk of especially a kind of fine-denier porous POY.
Background technology
Dacron fine-denier porous POY is black, and silk is a kind of special modified fiber, and this kind is on the basis of the white silk of former POY, to add Masterbatch, processes through special process, can save the dyeing link.At present; The output in chemical fibre market sharply rises; Cause the dacron product situation that supply exceed demand to become increasingly conspicuous, add the country increasingly high to environmental protection requirement, the competition more and more fierce of home sale market fiber product; Enterprise will try to achieve under severe like this situation and further develop, must differential, the functional fiber of exploitation.
Existing master batch adopts the raw material bucket type dry, because of hopper formula drying machine extends to heat in the middle of the master batch with air blast, and less, the shortage of heat of wind-force, drying effect is poor, can not arrive desirable master batch moisture content (below the 200ppm), and the master batch spinnability is poor.
In addition, along with further developing of chemical fibre industry, the technology and the quality requirement of fiber product are increasingly high; Particularly present most of fused mass directly spinning enterprise adopt one after another the ring blast-cold but mode produce thin dawn or super fine denier porous silk, product quality has obtained the consistent of client to be approved, and market demand is increasing; But the most of lateral blowing type of cooling that adopts of enterprise is spun in traditional section at present; Can't produce porous fine denier or superfine Denier fibre, main cause is that thin dawn or super fine denier product filament number are low, and hole count is many; Cooling air can't penetrate tow smoothly when tow cools off; Cause the tow inhomogeneous cooling even, better near the tow cooling effect of side-blown slight wind window one side, and can not get abundant cooling away from the tow of side-blown slight wind window one side; In addition; The tow band that the wind on side-blown slight wind window top is walked about downwards easily askew (band downwards), thus greatly reduce the cooling effect of this part lateral blowing, finally formed lousiness or doubling; The product of being produced can't looming weaving; Product quality can not get client's approval, and therefore fine-denier porous silk can only adopt the type of cooling of ring blowing, and utilize lateral blowing to produce fine-denier porous silk is the bottleneck problem in the industry always.
Therefore be necessary to develop the production method of the black silk of a kind of more practical, new fine-denier porous POY.
Summary of the invention
A kind of master batch good spinnability that the objective of the invention is to design for the deficiency that solves above-mentioned technology, good cooling results,, can improve the production method of the black silk of fine-denier porous POY of the oil uniformity and the productivity ratio of spinning cake.
The production method of the black silk of the fine-denier porous POY that the present invention designed; Comprise following production stage: half delustring chip drying-black masterbatch drying-section and black masterbatch add screw extruder-screw extruder fusion-measuring pump-spinning manifold-assembly spray silk-lateral blowing cooling-tow and oil-GR1, GR2 draw-off godet-coiling and molding-finished product inspection, it is characterized in that:
In the black masterbatch drying steps: adopt the continuous drying mode; Black masterbatch joins the crystallizing and drying jar earlier; Blown out by the entering from crystallizing and drying jar bottom of the dry air after the heating, top, black masterbatch is carried out drying, be 2 hours drying time; Black masterbatch falls into the intermediate bunker storage of crystallizing and drying jar below after dry the completion, and is injected by the master batch syringe of intermediate bunker below;
In assembly spray silk step: be provided with dividing strip in the middle of adopting, spinneret orifice is separated into the spinnerets of two parts, form ventilative gap during wire vent between the silk of these two part ejections;
In the lateral blowing cooling step: lateral blowing wind direction and said ventilative gap are with parallel; On side-blown slight wind window top the blowing rectifier of being made up of the horizontal commutator segment that is provided with at interval is set, superposed lateral blowing is carried out rectification, on described horizontal commutator segment, be provided with arc notch, just in time be positioned at this breach when tow is walked about; Like this, because tow is the flowing mode of walking of " being embedded in the blowing rectifier ", because the effect of horizontal commutator segment, lateral blowing just can be with askew, and this mode cooling effect is better than not adopting.
Oil at tow and also to be provided with preparatory network step between step and GR1, the GR2 draw-off godet step.Like this, can improve the uniformity that oils of spinning cake, to reducing the bigger contribution of generation of back processing lousiness, the repiece success rate also is improved, and has reduced waste silk consumption.
As preferably, arc is provided with the arcuate guide sheet on described arc notch limit, and this arcuate guide sheet is with the intrafascicular heart of lateral blowing guide wire of level.Can form the effect that a ring blows like this, lateral blowing almost can cool off it around tow, and cooling effect is better.
As preferably;, section and black masterbatch comprise following measure in adding the step of screw extruder: the injected frequency of master batch syringe black masterbatch and the duty associated of distributing to different measuring pumps that spin; Difference is spun the measuring pump of a different cultivars to operating frequency separately should be arranged; When supplying with certain metering air pump inoperative that spins the position, the injected frequency of master batch syringe totally deducts correspondent frequency.Because its controlled frequency of existing master batch syringe adopts average distribution system, promptly identical Masterbatch frequency is all assigned at each position, and corresponding master batch frequency reduces during off-position, and master batch confession amount is dwindled; If what spin different cultivars just causes aberration easily; And this programme, the different parts different cultivars can be assigned to correspondent frequency by the kind thickness, and corresponding position deducts corresponding frequencies during off-position; Master batch confession amount is scaled; Can effectively prevent the product aberration, guarantee that form and aspect are uniform and stable, satisfy customer demand.
As preferably, said spinneret orifice diameter is 0.2mm.Than the aperture of existing 0.17mm, shortened the time of staying of melt in the spinnerets tube wall, reduced melt degraded risk, improved the phenomenon of plate face haftplatte.Simultaneously, the cleaning of spinnerets is also had certain help, after the aperture increased, the impurity on the tube wall can have more completely and remove under action of ultrasonic waves, especially spins coloured better effects if.
Preferred scheme is in screw extruder fusion step: melt temperature is divided into 5 districts: 270 ℃ in a district, 280 ℃ in two districts, 285 ℃ in three districts, 285 ℃ in four districts, 285 ℃ in five districts;
In the spinning manifold step: adopt rare earth that spinning manifold is incubated, spinning manifold is carried out the rare earth insulation, reduce heat and distribute, guarantee the uniformity of melt temperature, can dwindle and spin the position and spin the difference on the product index between the position; Crossing the filter sand proportioning is 60 orders, 90 grams; 40 orders, 140 grams;
In assembly spray silk step: the spinnerets draw ratio is 3;
In the lateral blowing cooling step: temperature is controlled at 29 ± 1 ℃, and wind speed is controlled at 0.75 ± 0.05m/s;
In tow oiled step: the rate of oiling was controlled at 0.50% ± 0.05;
In preparatory network step: network pressure is 0.8KG;
In GR1, GR2 draw-off godet step: GR1 speed: 2965m/min; GR2 speed: 2970m/min;
In the coiling and molding step: winding speed: 2950m/min, switch overfeeding: 0.3%.
As preferably, the raw material physical index:
Black masterbatch: goth black;
Fusing point: 250 ℃;
Inherent viscosity: 0.52dl/g;
Moisture content: 0.05%;
Half delustring section: fusing point: 260 ℃;
Inherent viscosity: 0.648dl/g;
L value: 85.5.
The beneficial effect of the production method of the black silk of the fine-denier porous POY of gained of the present invention is:
1, adopt the black masterbatch continuous drying, the black masterbatch moisture content can reach below the 100ppm, and the master batch spinnability is better;
2, has ventilative gap between the silk by the spinnerets ejection; Lateral blowing can pass this ventilative gap; Thereby the increase film-cooled heat not only can effectively cool off the tow near side-blown slight wind window one side, and can guarantee fully to be cooled off away from the tow of side-blown slight wind window one side; Because the effect of blowing rectifier, the difficult tow band of being walked about downwards of wind that is positioned at side-blown slight wind window top is askew, has controlled the stability of lateral blowing, guarantees its cooling capacity, has effectively reduced broken end phenomenon and wild effect;
3, preparatory network step can improve the uniformity that oils of spinning cake, and to reducing the bigger contribution of generation of back processing lousiness, the repiece success rate also is improved, and has reduced waste silk consumption.
4, the black silk of the fine-denier porous POY of gained of the present invention product has the advantage that blackness is dark and form and aspect stable, fixed length is heavy surely, is special in a kind of fiber suede of high-grade underwear at a distance from the lining, has good moisture absorbing and sweat releasing and deodorant function.Product adds debatching even tension when playing, stiff silk lousiness is few, and excellent rate is high, waste lessly, and it is abundant that the lining that is made into has feel, and flexibility is good, steady quality, the even anti-characteristics of fading of form and aspect, is rare desirable feedstock on the present chemical fibre market.
Description of drawings
Fig. 1 is the structural representation of black masterbatch continuous drying apparatus of the present invention;
Fig. 2 is the structural representation of spinnerets of the present invention;
Fig. 3 is the blow side sketch map of slight wind window of the present invention;
Fig. 4 is the sketch map of embodiment 1 blowing rectifier;
Fig. 5 is the sketch map of embodiment 2 horizontal commutator segment arc notch;
Among the figure: spinnerets 1, dividing strip 2, spinneret orifice 3, blowing rectifier 4, horizontal commutator segment 5, arc notch 6, arcuate guide sheet 7, side-blown slight wind window 8, tow 9, crystallizing and drying jar 10, charge door 11, blast pipe 12, master batch syringe 13, intermediate bunker 14, heater 15, thermometer 16, middle material valve 17, drain hole 18.
The specific embodiment
Combine accompanying drawing that the present invention is done further description through embodiment below.
Embodiment 1:
The production method of the black silk of the described fine-denier porous POY of present embodiment; Comprise following production stage: half delustring chip drying-black masterbatch drying-section and black masterbatch add screw extruder-screw extruder fusion-measuring pump-spinning manifold-assembly spray silk-lateral blowing cooling-tow 9 and oil-GR1, GR2 draw-off godet-coiling and molding-finished product inspection, it is characterized in that:
In the black masterbatch drying steps: adopt continuous drying mode (as shown in Figure 1); Black masterbatch joins crystallizing and drying jar 10 earlier; Blown out by the entering from crystallizing and drying jar 10 bottoms of the dry air after the heating, top, black masterbatch is carried out drying, be 2 hours drying time; Black masterbatch falls into intermediate bunker 14 storages of crystallizing and drying jar 10 belows after dry the completion, and is injected by the master batch syringe 13 of intermediate bunker 14 belows;
In assembly spray silk step: be provided with dividing strip 2 in the middle of adopting, spinneret orifice 3 is separated into the spinnerets 1 of two parts, form ventilative gap during wire vent between the silk of these two part ejections; As shown in Figure 2;
In the lateral blowing cooling step: lateral blowing wind direction and said ventilative gap are with parallel; On side-blown slight wind window 8 tops the blowing rectifier of being made up of the horizontal commutator segment 5 that is provided with at interval 4 is set, superposed lateral blowing is carried out rectification, on described horizontal commutator segment 5, be provided with arc notch 6, just in time be positioned at this breach when tow 9 is walked about; Like this, because tow 9 is the flowing mode of walking of " be embedded in blowing rectifier 4 in ", because the effect of horizontal commutator segment 5, just that lateral blowing can be with is askew, this mode cooling effect is better than not adopting, like Fig. 3, shown in 4.
Oil at tow 9 and also to be provided with preparatory network step between step and GR1, the GR2 draw-off godet step.Like this, can improve the uniformity that oils of spinning cake, to reducing the bigger contribution of generation of back processing lousiness, the repiece success rate also is improved, and has reduced waste silk consumption.
Embodiment 2:
The production method of the black silk of the described fine-denier porous POY of present embodiment, different with embodiment 1 is:
As shown in Figure 2, be provided with arcuate guide sheet 7 at described arc notch 6 limit arcs, this arcuate guide sheet 7 is with lateral blowing guiding tow 9 centers of level.Can form the effect that a ring blows like this, lateral blowing almost can cool off it around tow 9, and cooling effect is better.
Embodiment 3:
The production method of the black silk of the described fine-denier porous POY of present embodiment; Different with embodiment 1 is: in section and black masterbatch add the step of screw extruder, comprise following measure: the injected frequency of master batch syringe 13 black masterbatch with distribute to the different duty associated of spinning the measuring pump of position; Difference is spun the measuring pump of a different cultivars to operating frequency separately should be arranged; When supplying with certain metering air pump inoperative that spins the position, the injected frequency of master batch syringe 13 totally deducts correspondent frequency.Because existing master batch syringe 13 its controlled frequencies adopt average distribution system, promptly identical Masterbatch frequency is all assigned at each position, and corresponding master batch frequency reduces during off-position, and master batch confession amount is dwindled; If what spin different cultivars just causes aberration easily; And this programme, the different parts different cultivars can be assigned to correspondent frequency by the kind thickness, and corresponding position deducts corresponding frequencies during off-position; Master batch confession amount is scaled; Can effectively prevent the product aberration, guarantee that form and aspect are uniform and stable, satisfy customer demand.
Embodiment 4:
The production method of the black silk of the described fine-denier porous POY of present embodiment; Comprise following production stage: half delustring chip drying-black masterbatch drying-section and black masterbatch add screw extruder-screw extruder fusion-measuring pump-spinning manifold-assembly spray silk-lateral blowing cooling-tow 9 and oil-GR1, GR2 draw-off godet-coiling and molding-finished product inspection, it is characterized in that:
In the black masterbatch drying steps: adopt the continuous drying mode; Black masterbatch joins crystallizing and drying jar 10 earlier; Blown out by the entering from crystallizing and drying jar 10 bottoms of the dry air after the heating, top, black masterbatch is carried out drying, be 2 hours drying time; Black masterbatch falls into intermediate bunker 14 storages of crystallizing and drying jar 10 belows after dry the completion, and is injected by the master batch syringe 13 of intermediate bunker 14 belows;
In assembly spray silk step: be provided with dividing strip 2 in the middle of adopting, spinneret orifice 3 is separated into the spinnerets 1 of two parts, form ventilative gap during wire vent between the silk of these two part ejections;
In the lateral blowing cooling step: lateral blowing wind direction and said ventilative gap are with parallel; On side-blown slight wind window 8 tops the blowing rectifier of being made up of the horizontal commutator segment 5 that is provided with at interval 4 is set, superposed lateral blowing is carried out rectification, on described horizontal commutator segment 5, be provided with arc notch 6, just in time be positioned at this breach when tow 9 is walked about;
Oil at tow 9 and also to be provided with preparatory network step between step and GR1, the GR2 draw-off godet step.
Particularly:
In screw extruder fusion step: melt temperature is divided into 5 districts: 270 ℃ in a district, 280 ℃ in two districts, 285 ℃ in three districts, 285 ℃ in four districts, 285 ℃ in five districts;
In the spinning manifold step: adopt rare earth that spinning manifold is incubated, spinning manifold is carried out the rare earth insulation, reduce heat and distribute, guarantee the uniformity of melt temperature, can dwindle and spin the position and spin the difference on the product index between the position; Crossing the filter sand proportioning is 60 orders, 90 grams; 40 orders, 140 grams;
In assembly spray silk step: spinnerets 1 aperture is 0.2mm, and draw ratio is 3 (being specially: be provided with dividing strip 2 formula veneers in the middle of the Φ 100-72*2-0.2-0.6);
In the lateral blowing cooling step: temperature is controlled at 29 ± 1 ℃, and wind speed is controlled at 0.75 ± 0.05m/s;
In tow 9 oiled step: the rate of oiling was controlled at 0.50% ± 0.05;
In preparatory network step: network pressure is 0.8KG;
In GR1, GR2 draw-off godet step: GR1 speed: 2965m/min; GR2 speed: 2970m/min;
In the coiling and molding step: winding speed: 2950m/min, switch overfeeding: 0.3%.
The raw material physical index:
Black masterbatch: goth black;
Fusing point: 250 ℃;
Inherent viscosity: 0.52dl/g;
Moisture content: 0.05%;
Half delustring section: fusing point: 260 ℃;
Inherent viscosity: 0.648dl/g;
L value: 85.5.
The black silk of the fine-denier porous POY of this method gained product, performance parameter is following:
1, line density: 275dtex/144F
2, line density deviation ratio: ± 2.00%
3, fracture strength: >=2.1CN/dtex
4, elongation at break: (140.0 ± 5.0) %
5, boiling water shrinkage: (60.0 ± 5.0) %
6, oil content: (0.50 ± 0.05) %
This product has the advantage that blackness is dark and form and aspect stable, fixed length is heavy surely, is special in a kind of fiber suede of high-grade underwear at a distance from the lining, has good moisture absorbing and sweat releasing and deodorant function.Product adds debatching even tension when playing, stiff silk lousiness is few, and excellent rate is high, waste lessly, and it is abundant that the lining that is made into has feel, and flexibility is good, steady quality, the even anti-characteristics of fading of form and aspect, is rare desirable feedstock on the present chemical fibre market.
Specific embodiment described herein only is that design of the present invention is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (9)
1. the production method of the black silk of a fine-denier porous POY; Comprise following production stage: half delustring chip drying-black masterbatch drying-section and black masterbatch add screw extruder-screw extruder fusion-measuring pump-spinning manifold-assembly spray silk-lateral blowing cooling-tow and oil-GR1, GR2 draw-off godet-coiling and molding-finished product inspection, it is characterized in that:
In the black masterbatch drying steps: adopt the continuous drying mode; Black masterbatch joins the crystallizing and drying jar earlier; Blown out by the entering from crystallizing and drying jar bottom of the dry air after the heating, top, black masterbatch is carried out drying, be 2 hours drying time; Black masterbatch falls into the intermediate bunker storage of crystallizing and drying jar below after dry the completion, and is injected by the master batch syringe of intermediate bunker below;
In assembly spray silk step: be provided with dividing strip in the middle of adopting, spinneret orifice is separated into the spinnerets of two parts, form ventilative gap during wire vent between the silk of these two part ejections;
In the lateral blowing cooling step: lateral blowing wind direction and said ventilative gap are with parallel; On side-blown slight wind window top the blowing rectifier of being made up of the horizontal commutator segment that is provided with at interval is set, superposed lateral blowing is carried out rectification, on described horizontal commutator segment, be provided with arc notch, just in time be positioned at this breach when tow is walked about;
Oil at tow and also to be provided with preparatory network step between step and GR1, the GR2 draw-off godet step.
2. the production method of the black silk of fine-denier porous POY according to claim 1 is characterized in that arc is provided with the arcuate guide sheet on described arc notch limit, and this arcuate guide sheet is with the intrafascicular heart of lateral blowing guide wire of level.
3. the production method of the black silk of fine-denier porous POY according to claim 1 and 2; It is characterized in that in section and black masterbatch add the step of screw extruder, comprising following measure: the injected frequency of master batch syringe black masterbatch and the duty associated of distributing to different measuring pumps that spin; Difference is spun the measuring pump of a different cultivars to operating frequency separately should be arranged; When supplying with certain metering air pump inoperative that spins the position, the injected frequency of master batch syringe totally deducts correspondent frequency.
4. the production method of the black silk of fine-denier porous POY according to claim 1 and 2 is characterized in that said spinneret orifice diameter is 0.2mm.
5. the production method of the black silk of fine-denier porous POY according to claim 3 is characterized in that said spinneret orifice diameter is 0.2mm.
6. the production method of the black silk of fine-denier porous POY according to claim 4 is characterized in that:
In screw extruder fusion step: melt temperature is divided into 5 districts: 270 ℃ in a district, 280 ℃ in two districts, 285 ℃ in three districts, 285 ℃ in four districts, 285 ℃ in five districts;
In the spinning manifold step: adopt rare earth that spinning manifold is incubated, crossing the filter sand proportioning is 60 orders, 90 grams; 40 orders, 140 grams;
In assembly spray silk step: the spinnerets draw ratio is 3;
In the lateral blowing cooling step: temperature is controlled at 29 ± 1 ℃, and wind speed is controlled at 0.75 ± 0.05m/s;
In tow oiled step: the rate of oiling was controlled at 0.50% ± 0.05;
In preparatory network step: network pressure is 0.8KG;
In GR1, GR2 draw-off godet step: GR1 speed: 2965m/min; GR2 speed: 2970m/min;
In the coiling and molding step: winding speed: 2950m/min, switch overfeeding: 0.3%.
7. the production method of the black silk of fine-denier porous POY according to claim 5 is characterized in that:
In screw extruder fusion step: melt temperature is divided into 5 districts: 270 ℃ in a district, 280 ℃ in two districts, 285 ℃ in three districts, 285 ℃ in four districts, 285 ℃ in five districts;
In the spinning manifold step: adopt rare earth that spinning manifold is incubated, crossing the filter sand proportioning is 60 orders, 90 grams; 40 orders, 140 grams;
In assembly spray silk step: the spinnerets draw ratio is 3;
In the lateral blowing cooling step: temperature is controlled at 29 ± 1 ℃, and wind speed is controlled at 0.75 ± 0.05m/s;
In tow oiled step: the rate of oiling was controlled at 0.50% ± 0.05;
In preparatory network step: network pressure is 0.8KG;
In GR1, GR2 draw-off godet step: GR1 speed: 2965m/min; GR2 speed: 2970m/min;
In the coiling and molding step: winding speed: 2950m/min, switch overfeeding: 0.3%.
8. the production method of the black silk of fine-denier porous POY according to claim 6 is characterized in that:
The raw material physical index:
Black masterbatch: goth black;
Fusing point: 250 ℃;
Inherent viscosity: 0.52dl/g;
Moisture content: 0.05%;
Half delustring section: fusing point: 260 ℃;
Inherent viscosity: 0.648dl/g;
L value: 85.5.
9. the production method of the black silk of fine-denier porous POY according to claim 7 is characterized in that:
The raw material physical index:
Black masterbatch: goth black;
Fusing point: 250 ℃;
Inherent viscosity: 0.52dl/g;
Moisture content: 0.05%;
Half delustring section: fusing point: 260 ℃;
Inherent viscosity: 0.648dl/g;
L value: 85.5.
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| CN102776585A (en) * | 2012-08-17 | 2012-11-14 | 浙江耐隆纤维有限公司 | Method for producing porous extinction raw spinning fiber |
| CN102877141A (en) * | 2012-08-17 | 2013-01-16 | 苏州市兴吴工程塑胶有限公司 | Direct spinning method suitable for chemical fibers |
| CN103556295A (en) * | 2013-10-23 | 2014-02-05 | 东华大学 | Black polyester fiber and preparation method thereof |
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| CN112176434A (en) * | 2020-09-30 | 2021-01-05 | 福建凯邦锦纶科技有限公司 | Production method of side-blown nylon filaments with diameter of more than 5dpf |
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