CN101287863A - Method and device for the production of staple fibers from melt-spun hollow fibers - Google Patents
Method and device for the production of staple fibers from melt-spun hollow fibers Download PDFInfo
- Publication number
- CN101287863A CN101287863A CNA2006800381628A CN200680038162A CN101287863A CN 101287863 A CN101287863 A CN 101287863A CN A2006800381628 A CNA2006800381628 A CN A2006800381628A CN 200680038162 A CN200680038162 A CN 200680038162A CN 101287863 A CN101287863 A CN 101287863A
- Authority
- CN
- China
- Prior art keywords
- spinning
- hollow fibre
- melt
- hollow
- fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/26—Formation of staple fibres
Abstract
Disclosed are a method and a device for producing staple fibers from melt-spun hollow fibers. In order to be able to produce said staple fibers with as little complexity as possible regarding the equipment, the hollow fibers are guided in a continuous fiber flow from the melt-spinning process to the cutting process, the hollow fibers being extruded through a ring segment-shaped nozzle port that has an outer diameter ranging from 0.2 to 0.8 mm and a maximum hollow proportion of 60 percent, preferably 40 percent, during melt-spinning of a polymer melt.
Description
Technical field
The present invention relates to a kind of method that is used for making staple fibre by the hollow fibre of melt-spinning, and a kind of device that is used to implement described method according to claim 13 preamble.
Technical background
Known in fiber manufacturing staple fibre by melt-spinning, at first in a melt-spinning process, extrude fiber, and described fiber is merged into ribbon (Faserstrange) by polymer melt.Here, in the melt-spinning process, can extrude and have the different cross sectional shapes or the fiber of sectional area, for example have the fiber of circular or special-shaped (profiliert) of solid section or hollow section.Here, in a period of time recently, the manufacturing of hollow fibre becomes more and more important, because can reduce material consumption thus under the identical situation of fibre diameter.
For example by the known a kind of method that is used for making staple fibre of EP0750691B1 by the hollow fibre of melt-spinning.In this known method, at first in the melt-spinning process, produce hollow fibre, and it is carried out centre/interim storage.In subsequent processes, make the curling distortion of hollow fibre and be cut to staple fibre.But this two stage technologies have such shortcoming on principle, promptly need the intermediate storage hollow fibre.On the other hand, when extruding hollow fibre, processing speed will be coordinated mutually with traction that is used to form hollow fibre and cooling (process) to a great extent.Thus, in this known melt-spinning of hollow fibre, at first extrude the hollow profile of opening.This moment, slow excessively hauling speed can cause too fast cooling occurring on fiber, thereby can not form bonding at the profile position of opening.In contrast, too fast hauling speed can cause the extensibility that increases, thereby hollow fibre can seal gradually, and the not enough hollow bulb ratio of residue in fiber thus.
Summary of the invention
Now, the objective of the invention is, a kind of method that is used for being made by the hollow fibre of the melt-spinning of described type staple fibre is provided, and a kind of device that is used to implement described method is provided, in described method, can realize economic manufacturing with the least possible equipment cost.
According to the present invention, the method for the feature of described purpose by having claim 1 and the device with feature of claim 13 are realized.
The favourable form of implementation of the present invention is limited by the feature and the feature combination of corresponding dependent claims.
The present invention is based on such cognition, that is, the size of extruding the cross section of hollow fibre is for until the subsequent processes of making staple fibre significant effects being arranged.Verified at present, for continuous fibre stream, should keep the cross section ratio determined for melt-spinning and cutting.In the present invention, the melt-spinning of hollow fibre is by having the overall diameter/envelope diameter (H ü lldurchmesser) and maximum 60% in 0.2mm to 0.8mm scope, the ring section shape jet hole of preferred maximum 40% hollow bulb ratio (Hohlanteil) is realized, under the situation that has continuous fibers stream, the invention enables to form hollow fibre with enough stability and hollow bulb ratio from melt-spinning to cutting.Thereby can under the situation of using few polymer melt, be manufactured on external dimensions and suitable with fiber basically in appearance staple fibre with solid section.Thereby this staple fibre for example preferably can be used for the final use as filler, to obtain for example to be used for the light especially filler of bedding or quilt.In addition, the hollow bulb ratio of staple fibre also causes high rigidity.
In order to guarantee to form hollow fibre on the one hand by the extrusion molding body is melted, and on the other hand in order to guarantee the hollow bulb ratio that hollow fibre is enough in final fiber number, a favourable improvement project of the method according to this invention, according to the final fiber number and the extensibility of hollow fibre, the minimum thruput of each jet hole is limited in the scope of 0.05g/min to 0.95g/min.
But for reach for the manufacturing economy of staple fibre, every day at least six tons scale, preferably adopt such method flexible program, wherein extrude hollow fibre by annular spinning-nozzle with a plurality of jet holes of 8000 to 100000.
Verified, when making staple fibre, under the situation that has continuous fibers stream, hauling speed should be limited in the scope of 10m/min to 100m/min, keeping low as far as possible owing to the ratio of the not enough and not closed extrusion molding body of fusing from melt-spinning to cutting.
Here, directly after extruding, preferably the restricted cooling air flow of the jet thrust by being set directly at annular spinning-nozzle below produces the cooling to hollow fibre.
Here, produce cooling air flow according to the final fiber number of hollow fibre with the jet velocity of 4m/sec to 15m/sec.Here, higher jet velocity is used for fiber is carried out uneven cooling, for example to realize three-dimensional Texturized effect.
In order under hauling speed regulation,, to keep having the final fiber number of enough hollow bulb ratios in the scope of 10m/min to 100m/min, behind melt-spinning, draw hollow fibre, and next hollow fibre is stretched to the final fiber number of the hollow fibre in 1den to 20den scope by one or more follow-up drawing mechanisms by first drawing mechanism with a plurality of draw rolls.This fiber is particularly suitable for as filler.
In order during stretching, to obtain minimum cavity, by a heating drawing passageway, and be heated＞55 ℃ temperature at the inner guiding of one first draw stage hollow fibre at fibrous inside.According to the type of polymer, described heating can be undertaken by the hot water or the vapours of hot-air, water-bath form.Here, minimum hollow bulb ratio is preferably more than 8%, especially more than 10%.
A favourable improvement project of the method according to this invention before cutting, makes the hollow fibre distortion of curling in the processing stage of one.Here the Texturized roller that preferably is transported in the stuffer box by two synergies, with hollow fibre is realized.
But in addition, can also uneven cooling inboard by fiber on the hollow fibre and the fiber outside come in fiber, to form so-called three-dimensional crimp distortion.
In when cutting, preferably make hollow fibre have fibre length in 3mm to 100mm scope.
In order to implement the method according to this invention, device according to the present invention has the device for spinning of spinning-nozzle structure, described spinning-nozzle structure comprises a plurality of ring segment-shaped jet holes, described jet hole has respectively at the overall diameter of 0.2mm to 0.8mm scope and maximum 60%, preferred maximum 40% hollow bulb ratio, wherein device for spinning and treating apparatus are arranged to have the fiber path (Faserstra β e) that continuous fibers flows with cutter sweep.The method according to this invention has so special advantage, that is, even under lower hauling speed, also can make hollow fibre reliably.
For the fusing of the extrusion molding body of realization opening after extruding according to hauling speed and cooling characteristics, the jet hole of spinning-nozzle structure is preferably formed by one or more apertures section, and wherein the distance between the end of aperture section is in the scope of 0.03mm to 0.3mm.
Here, the aperture section of jet hole can irrespectively be designed to have the cross section, aperture of substantially the same size with angular pitch (Teilungswinkel).But also can make special-shaped hollow fibre with aperture section with different orifice cross section.In order to spin hollow fibre, here the capillary pipe length of the verified jet hole in 0.2mm to 0.6mm scope (
) be particularly advantageous.
The preferred employing by having at least 8000 to 100000 the annular spinning-nozzle of jet hole quantity as the spinning-nozzle structure.Can guarantee like this for the output of making the staple fibre routine.
In order when the quantity of the jet hole of the inside of annular spinning-nozzle is big, to obtain to fill uniformly and obtain uniformly thruput by jet hole, particularly advantageous is such nozzle ring configuration, in this configuration, one nozzle plate upside have around distributing trough, and in this configuration, jet hole forms in the trench bottom of distributing trough.
Here can improve the filling to jet hole like this, promptly the front of the jet hole in each trench bottom at distributing trough is provided with a melting hole that has greater than the bore dia of the overall diameter of jet hole.
The method according to this invention and device according to the present invention are particularly suitable for making hollow staple fibre by the PES plastics.But also can adopt other material in principle, for example PP or PA plastics.
Description of drawings
Describe the method according to this invention below with reference to accompanying drawing in detail in conjunction with a embodiment according to device of the present invention.
In the accompanying drawings:
Fig. 1 schematically shows first embodiment according to device of the present invention that is used to implement the method according to this invention,
Fig. 2 schematically shows the transverse sectional view according to the annular spinning-nozzle in the device of Fig. 1,
Fig. 3 schematically shows the transverse sectional view of the jet hole of the annular spinning-nozzle among Fig. 2,
Fig. 4 schematically shows the cross section of extruding of jet hole among Fig. 3,
The several embodiment that extrude cross section of Fig. 5 and the schematically illustrated jet hole of Fig. 6,
Schematically illustrated another embodiment of Fig. 7 according to apparatus of the present invention.
The specific embodiment
Fig. 1 schematically shows and is used to implement according to first embodiment according to device of the present invention of the present invention, that be used for being made by the hollow fibre of melt-spinning the method for staple fibre.This device is being known in the art as the barchant yarn equipment of the staple fibre that is used to make.Barchant yarn equipment is with the operation of the processing speed in maximum 300m/min scope and can be used for the highest 50t/ days production capacity.
Device according to the present invention on its structure corresponding to described barchant yarn equipment, and have a device for spinning 1, a plurality for the treatment of apparatus 2 in device for spinning 1 back for this reason, and one the cutting device 3, before and after the said apparatus order be assembled into a fiber path so that can realize continuous fibre stream from the melt-spinning of the fiber of melt-spinning to cutting.
Device for spinning 1 has a plurality of spinning parts that are arranged side by side 4.1,4.2 and 4.3.The quantity of the spinning part of the embodiment shown in Fig. 1 is exemplary.The structure of each spinning part 4.1 to 4.3 is identical, therefore can be elaborated to all spinning parts according to spinning part 4.1.
In order to extrude a plurality of hollow fibres, set a plurality of spinning-nozzle structures for device for spinning 1, described spinning-nozzle structure is formed by annular spinning-nozzle 5 in this embodiment.Described annular spinning-nozzle 5 has a plurality of ring segment-shaped jet holes at its downside.Also to describe the structure and the shape-designing of the ring section shape jet hole of annular spinning-nozzle 5 inside below in detail.This jet hole that annular spinning-nozzle 5 has very high quantity, this quantity can reach the quantity of 100000 jet holes of each annular spinning-nozzle according to the diameter difference of annular spinning-nozzle.Here jet hole can be arranged in the annular spinning-nozzle 5 by annular or rectangular arrangement.Annular spinning-nozzle 5 links to each other with melt source (not shown) in spinning part 4.1 or 4.2 or 4.3, and the polymer melt that is under the pressure is carried to annular spinning-nozzle 5 in described melt source.The combination of extruder, pump or extruder and pump is suitable for use as the melt source in principle, to flow to annular spinning-nozzle 5 melt conveying.Spinning part 4.1,4.2 and 4.3 annular spinning-nozzle 5 are arranged in the manifold that is heated 16 jointly.Below manifold 15, in each spinning part 4.1 to 4.3, be respectively equipped with a jet thrust 6 with spinning-nozzle 5 arranged concentric.Described jet thrust 6 has a cooling air input part in central authorities, and described cooling air input part links to each other with air nozzle on being arranged on jet thrust 4 peripheries.In jet thrust 6, the air nozzle ejection of cooling air from periphery, forming circlewise, thus the cooling air from inside to outside passes the annular heavy curtain that is formed by ribbon, and cause the cooling of the hollow fibre extruded.In the embodiment shown, pass manifold 15 from the top and carry the cooling air to jet thrust 6.But cooling air input part also can side direction be positioned at the next door of the ribbon of output.
In order to guide and handle the hollow fibre of having extruded 17, the back of device for spinning 1 is provided with a plurality for the treatment of apparatus 2.At first device for spinning 1 directly is equipped with a draw-gear 7.Draw-gear 7 all comprises for each spinning part 4.1 to 4.3 and is used for oiling and it being merged into the structure of ribbon 18 to hollow fibre 17.Like this, for example when oiling, can oil agent be applied on the hollow fibre by roller.Draw-gear 7 is arranged on the below of device for spinning 1.By draw-gear 7 hollow fibre 17 at spinning part 4.1 to 4.3 places is moved towards deflection and comes out and make its merging from vertical.Here by the ribbon 18 of a plurality of such formation of a plurality of first drawing mechanism, 8.1 tractions, be also referred to as tow (Tow) or spinning tow.Drawing mechanism 8.1 is set directly at the next door of draw-gear 7.
Be provided with at least one other drawing mechanism 8.2 in the back of drawing mechanism 8.1, wherein each in the drawing mechanism 8.1 and 8.2 all has a plurality of draw rolls 9.Ribbon 18 is directed once to surround on the draw roll 9.Drive the draw roll 9 of drawing mechanism 8.1 and 8.2 like this, that is, make drawing mechanism 8.1 and 8.2 draw roll 9 with different circumferential speed operations according to the stretch rate of hope.In order simultaneously hollow fibre to be heat-treated, as requested different of drawing mechanism 8.1 and 8.2 draw roll 9 can have the roller shell of cooling or the roller shell of heating.
In order to heat hollow fibre, between first drawing mechanism 8.1 and second drawing mechanism 8.2, be provided with heating drawing passageway 10.In the inside of heating drawing passageway 10, can ribbon 18 be adjusted to a temperature of predesignating by means of hot-air, hot water or by means of vapours.Particularly during the stretching of hollow fibre, this temperature adjustment is necessary, forms point (Streckpunktausbildung) with the stretching that obtains to determine.But heating drawing passageway 10 also can form by the stretch bath with temperature adjustment liquid.
In order to be further processed, in drawing mechanism 8.2 back tow laying device 11 is set, ribbon 18 can be merged lay to the required width of Texturized processing by described tow laying device.The back of tow laying device 11 is steam channel 12 and Texturized device 13.Texturized device 13 is preferably designed to the stuffer box crimping anamorphic attachment for cinemascope, in the stuffer box crimping anamorphic attachment for cinemascope, by two rollers ribbon 18 is transported in the stuffer box.
The back of Texturized device 13 is provided with drying device 14, with moisture and the shrinkage factor in the reduction ribbon, thereby finalizes the design to Texturized.
End at the fiber path is provided with tension 15 and cutter sweep 3, cuts into the staple fibre with regulation fibre length continuously with the ribbon with doughnut.
In order to extrude hollow fibre in device for spinning 1, each spinning part 4.1 to 4.3 has the spinning-nozzle structure of annular spinning-nozzle 5 forms.In Fig. 2, schematically show the transverse sectional view of this annular spinning-nozzle 5.Annular spinning-nozzle 5 has a nozzle plate 19 at its downside, and described nozzle plate is kept by a plate supporting member 20.Here the additional structure that being used to guide melt of annular spinning-nozzle 5 is not set to nozzle plate 19 is elaborated.Nozzle plate 19 be designed to the annular and thereon side comprise around distributing trough 23.In the trench bottom 24 of distributing trough 23 side by side or front and back sequentially a plurality of jet holes 21 are set by the layout of preferred annular.
In order to further specify jet hole 21, the transverse sectional view of jet hole 21 shown in Figure 3, and its vertical view shown in Figure 4.Jet hole 21 is designed to ring segment-shaped, wherein extrudes the cross section and is formed by the aperture section 22 of annular.The external dimensions of aperture section 22 is within overall diameter, and described overall diameter is represented with lowercase b in Fig. 3 and Fig. 4.Here extrude the hollow bulb ratio in cross section and represent with lowercase c, wherein when in the scope of overall diameter b at 0.2mm to 0.8mm, the hollow bulb ratio is maximum 60%.Relevant with the type of polymer, if the hollow bulb proportional limit can also improve spinning reliability and fiber treatment thus built in maximum 40%.
The state of the jet hole in the trench bottom shown in Fig. 3 24.Here each jet hole 21 all is equipped with a melting hole 25, with will be directed to from the polymer melt of distributing trough 23 input jet hole 21. for this reason melting hole 25 be designed to have bore dia d greater than the overall diameter b of jet hole 21.Jet hole 21 passes the bottom of nozzle plate on a capillary pipe length e.Here verified, the capillary pipe length e from 0.2mm to maximum 0.6mm plays particularly advantageous effect for this method.
In order to obtain closed hollow profile after passing through jet hole 21 extruded polymer melts, the end of aperture section 21 is designed to directly adjacent to each other.Distance between the end of aperture section 21 is represented with lowercase a.Here select the distance of the end of aperture section 21 like this, promptly after extruding, make described end that fusing uniformly takes place mutually in phase, to form hollow fibre with hauling speed and cooling condition.
In order to implement the method according to this invention, device shown in Figure 1 at first provides by plastics, preferably the polymer melt of being made up of polyester.For this reason, the annular spinning-nozzle 5 by spinning part 4.1 to 4.3 is extruded into polymer melt a plurality of hollow fibres under pressure in device for spinning 1.The fiberizing body of the opening that will extrude from ring section shape jet hole 21 fuses into hollow fibre, and by draw-gear 7 by drawing mechanism 8.1 to be lower than the hauling speed of 100m/min, preferably the hauling speed in 30 to 70m/min scopes is pulled out it from annular spinning-nozzle 5.Make formed hollow fibre 17 coolings by means of the cooling air flow that is produced by jet thrust this moment, next it oiled, and it is merged into the tow that comprises all fibres bar when leaving draw-gear 6.Drive the draw roll 9 of first drawing mechanism 8.1 with hauling speed, wherein, can be simultaneously on the periphery of the draw roll 9 of first drawing mechanism 8.1, ribbon 18 be further cooled off.For this reason, the draw roll 9 of first drawing mechanism 8.1 can be designed to have the case surface of cooling.
Here utilize the jet hole 21 of annular spinning-nozzle 5 to realize extruding of hollow fibre, wherein extrude the cross section and form, have the distance of a＜0.3mm between the Duan Zaiqi end, described aperture by aperture section 22.Should be owing to the minimum split dimension of the reason on the manufacturing technique is adjusted to 0.03mm here.When in the scope of overall diameter b at 0.2mm to 0.8mm, and the hollow bulb ratio is maximum 40% o'clock, can be with the such hollow fibre of described hauling speed manufacturing, and this hollow fibre has at least 13% hollow bulb ratio under final fiber number.
Here carry out the stretching of hollow fibre in a draw stage, wherein the total drawing ratio rate is more than 3: 1.But also can carry out multistage stretching to hollow fibre by the draw stage that a plurality of front and back are arranged.In order to stretch, preferably heat in the drawing passageway 10 by having the hot air hollow fibre 5 of about 70 ℃ temperature one.Consider 100 to 250m/min, speed of production in preferred 150 to the 200m/min scopes, the thruput of each nozzle bore is adjusted in the scope of 0.5m/min to 0.95m/min, with for example final fiber number of acquisition 5 to 15den. under the situation of medium extensibility.
The cooling of the hollow fibre that carries out in described method preferably utilizes the cooling air to carry out, and the jet velocity of described cooling air with room temperature with 4 to 15m/sec, in preferred 6 to 9m/sec the scope produces.
After stretching the Texturized of hollow fibre.For this reason, ribbon 18 laies are become a narrower band, so that next the steam treatment of carrying out is carried out Texturized afterwards in vapor chamber 12 by tow laying device 11.Texturized for this reason device 13 is designed to have two Texturized rollers and a stuffer box, and next described stuffer box feeds drying device 14.After Texturized typing, admit ribbon 18 and it is flowed to cutter sweep 3 by tension 15.In cutter sweep 3, ribbon is cut into staple fibre with the Cutting Length of determining.Here Cutting Length is adjusted in the scope of 3mm to 100mm.
The method according to this invention and device according to the present invention are particularly suitable for making staple fibre by the PET hollow fibre.This fiber is particularly suitable for as filler, and wherein fiberfill fibers has the final fiber number in 6 to 10den. scopes.Fibre length is chosen as 45 or 70mm.Can obtain enough filling functions with few fibre weight for final use thus.Here utilize the hollow bulb ratio can improve the rigidity of fiber.With respect to traditional solid fibers, the advantage of filler with this staple fibre is particularly in its lighter weight.In addition, in the scope of overall diameter at 0.2mm to 0.8mm the time, 60%, preferred 40% of regulation hollow bulb ratio has also guaranteed minimum rigidity according to the present invention, even described minimum rigidity prevents that fiber can collapse when complications yet.
Like this, Fig. 5 illustrates the aperture section 22.1 and 22.2 of two annulars altogether, and Duan Yiqi end, described aperture directly forms apart from a relatively and between it.Aperture section 22.1 and 22.2 has the cross section of extruding of same size respectively, thereby can make the hollow fibre with uniform wall portion cross section.
In the configuration of the jet hole shown in Fig. 6, three aperture sections 22.1,22.2 and 22.3 have been made up altogether, to form the hollow profile of hollow fibre.Here angular pitch α and β are designed to identical size, thereby each aperture section 22.1,22.2 and 22.3 has cross section, identical aperture.The end of aperture section 22.1 to 22.3 is relative on overall diameter inner annular ground, and forms apart from a between it respectively.But also aperture section 22.1 to 22.3 all can be designed on angular pitch and cross section, aperture different, thereby form the inhomogeneous configuration of the hollow profile of hollow fibre.
Shown in Figure 7 according to another embodiment that is used to implement the device of the method according to this invention of the present invention.The layout of this embodiment is identical with aforementioned embodiment according to Fig. 1 basically with structure, and therefore the difference part only is described below repeating.
In the embodiment shown in fig. 7, for the hollow fibre that stretches, guiding ribbon 18 passes through a stretch bath device 26 between drawing mechanism 8.1 and 8.2.Here by liquid bath hollow fibre is carried out temperature adjustment.This heat treatment of hollow fibre is particularly advantageous for making from Texturized hollow fibre.For this reason, in device for spinning 1, directly produce stronger cooling air extruding hollow fibre after, therefore, the fiber outside relative with hollow fibre 17 compared, and the fiber inboard of the direct air nozzle towards jet thrust 6 of hollow fibre 17 is cooled off strongly.The difference of this cooling causes different shrinkage phenomenons, and this shrinkage phenomenon forms from Texturized.It is this that to be also referred to as so-called 3D (three-dimensional) Texturized from Texturized.
Cancelled the mechanical Texturized of fiber after stretching.Directly ribbon 18 is flowed to drying device 14 by tow laying device 11.Other structure of embodiment shown in Fig. 7 is identical with the embodiment according to Fig. 1.
Therefore the device shown in Fig. 7 is particularly suitable for making the Texturized hollow fibre of 3D and is cut to staple fibre.
The method according to this invention is preferred for making staple fibre by polyester.But in principle also can one and the processing procedure of formula in other plastics, for example polypropylene and polyamide are processed into hollow staple fibre.
The Reference numeral table
1 device for spinning
2 treating apparatus
3 cutter sweeps
4.1,4.2,4.3 spinning parts
5 annular spinning-nozzles
6 jet thrusts
7 draw-gears
8.1,8.2 drawing mechanisms
9 draw rolls
10 heating drawing passageways
11 tow laying devices
12 steam channels
13 Texturized devices
14 drying devices
15 tensions
16 manifold
17 hollow fibres
18 ribbons
19 nozzle plates
20 plate supporting members
21 jet holes
22,22.1,22.2,22.3 aperture sections
23 distributing troughs
24 trench bottoms
25 melting holes
26 stretch bath devices
Claims (19)
1. be used for making the method for staple fibre by the hollow fibre of melt-spinning, it is characterized in that, existence is flowed to the continuous fibers that cuts from the melt-spinning of hollow fibre, wherein, when the melt-spinning polymer melt, by having overall diameter and the maximum 60% in 0.2mm to 0.8mm scope, the ring section shape jet hole of preferred maximum 40% hollow bulb ratio is extruded hollow fibre respectively.
2. according to the method for claim 1, it is characterized in that, minimum thruput extruded polymer melt with each jet hole according to the final fiber number and the extensibility of hollow fibre, is adjusted at described minimum thruput in the scope of 0.05g/min to 0.95g/min.
3. according to the method for claim 1 or 2, it is characterized in that, extrude hollow fibre by annular spinning-nozzle with a plurality of jet holes of 8000 to 100000.
4. according to each method in the claim 1 to 3, it is characterized in that, after extruding, with the traction of the hauling speed in the scope of 10m/min to 100m/min hollow fibre.
5. according to each method in the claim 1 to 4, it is characterized in that, after extruding, by at the cooling air flow that the inside of the ribbon that is directed circlewise produces hollow fibre being cooled off by jet thrust.
6. according to the method for claim 5, it is characterized in that: according to the final fiber number of hollow fibre, with the jet velocity generation cooling air flow of 4m/s to 15m/s.
7. according to each method in the claim 1 to 6, it is characterized in that, behind melt-spinning, by having first drawing mechanism traction hollow fibre of a plurality of draw rolls, and next hollow fibre is stretched to the final fiber number of hollow fibre in 1den to 20den scope by one or more follow-up drawing mechanisms.
8. according to the method for claim 7, it is characterized in that: the guiding hollow fibre and is heated＞55 ℃ temperature by a heating drawing passageway in one first draw stage.
9. method according to Claim 8 is characterized in that, during by described heating drawing passageway, by hot-air, water-bath and/or vapours heating hollow fibre.
10. according to each method in the aforementioned claim, it is characterized in that: after stretching, before cutting, make the hollow fibre distortion of curling in one the processing stage.
11., it is characterized in that: before stretching, hollow fibre is carried out uneven cooling on outside the inboard and fiber at fiber according to each method in the claim 1 to 9.
12. according to each method in the aforementioned claim, it is characterized in that, when cutting, make hollow fibre have fibre length in 3mm to 100mm scope.
13. be used for implementing according to each the device of method of claim 1 to 12, has a device for spinning (1) that is used for melt-spinning hollow fibre (17), a plurality for the treatment of apparatus (2) and a cutter sweep (13) that is used to cut hollow fibre, it is characterized in that, device for spinning (1), treating apparatus (2) is arranged to a fiber path with cutter sweep (3), described device for spinning (1) comprises the spinning-nozzle structure (5) with a plurality of ring segment-shaped jet holes (21), described jet hole (21) has respectively in the overall diameter (b) of 0.2mm to 0.8mm scope and maximum 60%, preferred maximum 40% hollow bulb ratio.
14. device according to claim 13, it is characterized in that, the jet hole (21) of spinning-nozzle structure (5) is formed by one or more apertures section (22,22.1,22.2), and wherein the distance (a) between the end of aperture section (22,22.1,22.2) is in the scope of 0.03mm to 0.3mm.
15. the device according to claim 13 or 14 is characterized in that, the cross section, aperture that the aperture section of jet hole (21) (22,22.1,22.2) and angular pitch (α, β) irrespectively are designed to have substantially the same size.
16., it is characterized in that jet hole (21) has the capillary pipe length (e) in 0.2mm to 0.6mm scope according to each device in the claim 13 to 15.
17., it is characterized in that the spinning-nozzle structure is that the annular spinning-nozzle (5) of 8000 to 100000 jet hole (21) forms by having quantity according to each device in the claim 13 to 16.
18. the device according to claim 17 is characterized in that, annular spinning-nozzle (5) comprises a nozzle plate (19), described nozzle plate upside have around distributing trough (23), and jet hole (21) forms in the trench bottom (24) of distributing trough (23).
19. the device according to claim 18 is characterized in that, the front of each jet hole (21) in the trench bottom (24) of distributing trough (23) is provided with a melting hole (25) that has greater than the bore dia (d) of the overall diameter (b) of jet hole (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005049116 | 2005-10-14 | ||
| DE102005049116.2 | 2005-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101287863A true CN101287863A (en) | 2008-10-15 |
Family
ID=37845250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800381628A Pending CN101287863A (en) | 2005-10-14 | 2006-10-13 | Method and device for the production of staple fibers from melt-spun hollow fibers |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1937877A2 (en) |
| CN (1) | CN101287863A (en) |
| WO (1) | WO2007042311A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409834A (en) * | 2013-07-25 | 2013-11-27 | 安徽东锦化纤科技有限公司 | Differentiated polyester fiber preparation method |
| CN106757434A (en) * | 2016-12-02 | 2017-05-31 | 宁波大发化纤有限公司 | A kind of oil bath strand tensile device |
| CN108950707A (en) * | 2018-09-13 | 2018-12-07 | 新凤鸣集团股份有限公司 | A kind of more hollow profiled fibre spinneret plate for producing and production method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691117B (en) * | 2012-05-31 | 2015-01-07 | 福建省金纶高纤股份有限公司 | Preparation process for three-dimensional crimped hollow polyester staple fiber |
| DE102013016628A1 (en) * | 2013-10-08 | 2015-04-09 | Trützschler GmbH & Co Kommanditgesellschaft | Spinneret for extruding self-crimping hollow fibers and self-crimping hollow fibers and method for producing self-crimping hollow fibers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584085B2 (en) * | 1978-06-26 | 1983-01-25 | 旭化成株式会社 | Hollow fiber manufacturing method |
| US5356582A (en) * | 1986-01-30 | 1994-10-18 | E. I. Du Pont De Nemours And Company | Continuous hollow filament, yarns, and tows |
| US5531951A (en) * | 1993-11-22 | 1996-07-02 | Wellman, Inc. | Method of forming staple fibers from self-texturing filaments |
| JP4205500B2 (en) * | 2003-06-26 | 2009-01-07 | ソロテックス株式会社 | Hollow polytrimethylene terephthalate composite short fiber and method for producing the same |
-
2006
- 2006-10-13 CN CNA2006800381628A patent/CN101287863A/en active Pending
- 2006-10-13 EP EP06806249A patent/EP1937877A2/en not_active Withdrawn
- 2006-10-13 WO PCT/EP2006/009896 patent/WO2007042311A2/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409834A (en) * | 2013-07-25 | 2013-11-27 | 安徽东锦化纤科技有限公司 | Differentiated polyester fiber preparation method |
| CN106757434A (en) * | 2016-12-02 | 2017-05-31 | 宁波大发化纤有限公司 | A kind of oil bath strand tensile device |
| CN106757434B (en) * | 2016-12-02 | 2019-11-05 | 宁波大发化纤有限公司 | A kind of oil bath strand tensile device |
| CN108950707A (en) * | 2018-09-13 | 2018-12-07 | 新凤鸣集团股份有限公司 | A kind of more hollow profiled fibre spinneret plate for producing and production method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1937877A2 (en) | 2008-07-02 |
| WO2007042311A2 (en) | 2007-04-19 |
| WO2007042311A3 (en) | 2007-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102016138B (en) | Method for melt-spinning, drawing, and winding up a multifilament, and apparatus for carrying out said method | |
| CN101460666B (en) | Spinning apparatus for producing fine threads by splicing | |
| US7740777B2 (en) | Method and apparatus for producing polymer fibers and fabrics including multiple polymer components | |
| EP1871930B1 (en) | Apparatus for melt spinning a plurality of composite yarns | |
| EP1959034B1 (en) | Method and apparatus for producing polymer fibers and fabrics including multiple polymer components in a closed system | |
| FI94777B (en) | Method and apparatus for making combination threads | |
| US20230415431A1 (en) | Die, die assembly, equipment and method for forming rods of fibrous material | |
| US20100099321A1 (en) | Process and apparatus for the production of nonwoven fabrics from extruded filaments | |
| CN101287863A (en) | Method and device for the production of staple fibers from melt-spun hollow fibers | |
| CN1930329B (en) | Device for melt spinning and cooling | |
| CN101305118A (en) | Process for producing sheath-core staple fibre with a three-dimensional crimp, and corresponding sheath-core staple fibre | |
| KR19990088232A (en) | Device and method for producing microfilament yarns with titer uniformity thermoplastic polymers | |
| CN104088026A (en) | Method for spinning cross-shaped multi-hole hollow short fibers with recycle polyester bottle chip | |
| US5059104A (en) | Melt spinning apparatus | |
| CN1328423C (en) | Method for producing highly stable polypropylene fibres | |
| CN104532373A (en) | Production method of glazed fine-denier flat fiber | |
| CN103168120B (en) | For the manufacture of the equipment of the product of strip | |
| CN100374631C (en) | Reducing thermotube and spinning device and method using the same | |
| CN113293511A (en) | Production process of spiral double-component fiber non-woven fabric | |
| JP2021105241A (en) | Method and device for melt-spinning synthetic yarn | |
| CN111793839A (en) | Method for delaying filament bundle cooling spinning of multi-F fine denier regenerated polyester filament | |
| CN111155184A (en) | Production equipment of fiber-grade polypropylene | |
| EP1728902A1 (en) | Method and apparatus for manufacturing artificial grass | |
| CN211079417U (en) | Production device of P L A polylactic acid perspiring silk-like fiber | |
| CN116575182B (en) | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball processing equipment and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081015 |