CN104246045A - Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven - Google Patents
Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven Download PDFInfo
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- CN104246045A CN104246045A CN201380021780.1A CN201380021780A CN104246045A CN 104246045 A CN104246045 A CN 104246045A CN 201380021780 A CN201380021780 A CN 201380021780A CN 104246045 A CN104246045 A CN 104246045A
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- 238000007664 blowing Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009740 moulding (composite fabrication) Methods 0.000 title abstract 8
- 238000009954 braiding Methods 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 claims abstract description 115
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims description 79
- 239000007921 spray Substances 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 2
- 210000002950 fibroblast Anatomy 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920003232 aliphatic polyester Polymers 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920000784 Nomex Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000004763 nomex Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention relates to a method and a device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven. Here, the fibre streams which are produced by a melt-blowing die and a hot air flow are blown into a forming gap of a forming element, wherein the fibres are joined together within the forming gap to produce a fibre composite. In order to influence the filling and the forming of the fibres within the forming gap directly below the melt-blowing die, according to the invention the fibres are freely guided substantially vertically from the melt-blowing die as far as the forming gap via an adjustable blowing section, wherein the adjustability of the blowing section lies in the range from 100 mm to 2000 mm. In this way, both very fine fibres and coarse fibres can advantageously be formed to produce a loose fibre composite.
Description
Technical field
The present invention relates to a kind of as described in the preamble according to claim 1, blow for limited fibre is melted, the shaping method becoming fiber matting with lay, and a kind of as described in the preamble according to claim 7, blow for limited fibre is melted, the shaping device becoming fiber matting with lay.
Background technology
In the prior art, in order to manufacture fiber matting by synthetic fiber, known two kinds of diverse ways and device in principle.The difference of two kinds of methods is not only the production of fiber, and is the fiber placement forming fiber matting.
By being called as the flexible program of molten blow moulding in professional domain, molten blow and spray the fiber that mouth newly extrudes using utilizing and directly pull out by thermal current when discharging from the molten nozzle bore blowing and spraying mouth and be directed to fiber matting as fibre stream.Substantially produce limited fiber at this, described limited fiber has relatively high elasticity.The present invention is derived from this flexible program, as also will explained in detail below.
In the second flexible program (it is called so-called spunbond process in professional domain), synthetic filaments utilizes spinning-nozzle to extrude and is cooled.Then, monofilament utilizes the compressed air of input to be directed to fiber matting as fibre stream.Substantially be made up of the monofilament for no reason of higher-strength at this fiber matting.In this case lay monofilament, employs the compressed air stream produced by additional aspirator, and this compressed air stream can adjust according to corresponding technique on personalized ground.
By comparison, in molten blow moulding at the molten thermal current that mouth produces of blowing and spraying for pulling out extruded fiber and for lay down fibre.Directly can to realize on sieve band or screen drum at this fiber placement, the surface that fibre stream accumulates in this sieve band or screen drum is directed to fibre composites together.In order to produce structure fiber matting loose especially, known, utilize shaping gap receive fibre stream and be directed to fibre composites together.Such as by the known this method of DE 30 41 089 A1 and this device.At this, molten blowing and spraying below mouth is provided with two profile members, is formed with shaping gap betwixt.Shaping gap blows and sprays mouth be medially kept relative to molten, makes fibre stream directly be aligned to groove part gap thus.Shortcoming in this fiber placement is, a part of air-flow directly acts in the composite part section that is laid in shaping gap.In the conventional laid course of fibre stream on compass screen surface, air-flow is received by compass screen surface and discharges.Can only be realized by the profile member arranged in side when this point is in fibre stream lay to shaping gap.
Summary of the invention
The object of the invention is, improving the blowing for being melted by limited fiber of described type, the shaping method and apparatus becoming fiber matting with lay like this, even if make the thinnest fiber also can be shaped to loose fibre composites in shaping gap.
Another object of the present invention is, what improvement was known like this blows for being melted by limited fiber, the shaping method and apparatus becoming fiber matting with lay, makes it possible to produce neatly have from little heavily to a large amount of fiber matting that large face is heavy.
This object is realized by following manner according to the present invention, that is: described fiber outspokenly freely to be guided to shaping gap by the adjustable path that blows substantially vertically from molten blowing and spraying, wherein, described in blow path adjusting range be 100mm to 2000mm.
Favourable improvement project is limited by the characteristic sum Feature Combination of each dependent claims.
The invention is characterized in, independently can select to select for the thermal current needed for procedure of fibre production molten blowing and spraying on mouth with the lay of fiber in shaping gap.In order to air intensity of flow when making lay reaches for shaping favourable degree, can make to blow path and shorten as required or extend.Molten blow and spray blowing path and can advantageously be vertically oriented below mouth and shaping gap at this, thus lay and shaping time can form the 3D structure of fibre composites.
In order to high homogeneity shaping fiber compound, according to favourable improvement project regulation of the present invention, described fiber is blown between two pivotal in opposite directions, cylinders with ventilative cylinder wall in order to shaping, between these cylinders, be formed with shaping gap, and these cylinders are driven with identical, in 0.1m/min to 50m/min scope circumferential speed respectively.By adjusting the circumferential speed of cylinder, the surface density of fiber volume advantageously can be affected.Therefore the circumferential speed of the cylinder wall of raising is utilized can to produce very loose fiber matting in shaping gap.
Not only for according to method of the present invention but also for all advantageously verified according to device of the present invention, described fibre composites brings lay fibroblast to tie up bondedfibre fabric by the cylinder of in cylinder at sieve after shaping, and described sieve band makes fiber matting tangentially discharge along cylinder.Other process that therefore can perform on fiber matting with short linking.
The density of the fiber matting produced is decided by the shaped cross-sections in shaping gap substantially.Realize the adjustment to shaping gap like this with method in a straightforward manner, make the distance between cylinder symmetrical or asymmetricly adjust in the region of 1mm to 100mm between the rollers.When asymmetric adjustment the axis in shaping gap no longer with the molten center superposition blowing and spraying mouth.Lay effect and shaping additionally can be produced thus in inside, shaping gap.
Also there is following possibility to form asymmetrical shaping gap, that is: between the cylinder that two have different diameter of cylinder, be formed into groove part gap.In this favourable improvement project according to apparatus of the present invention, the different diameter of cylinder that consistent diameter of cylinder or diameter proportion are 0.5 to 2.0 can be had.Advantageously can produce different surface textures on fiber matting thus.The diameter of cylinder of described cylinder is in the scope of 100mm to 800mm for this reason.
In order to affect fiber placement by receiving blow air on the one hand on the approaching side of shaping gap, on the other hand can conveying fiber bondedfibre fabric at least one in cylinder, such improvement is according to device of the present invention, make in cylinder one to have inner suction chamber, this suction chamber is connected with negative pressure source and is shielded by ventilative cylinder wall versus environmental.Additional suction streams can be produced thus, for concuring when producing and guide fiber matting.This effect is also supported by following manner, that is: make two cylinders have independently suction chamber respectively, these suction chambers are jointly connected on a negative pressure source, or are connected with two negative pressure sources independently.
Verified particularly advantageous improvement project of the present invention is that the Angle Position of described suction chamber in cylinder circumference is adjustable.Can freely select suction chamber relative to the position of the entrance and exit in shaping gap thus.
Accompanying drawing explanation
Embodiment below by means of apparatus of the present invention is elucidated in more detail with reference to the drawing according to method of the present invention and according to device of the present invention.Accompanying drawing illustrates:
Fig. 1 illustrates according to of the present inventionly blowing for being melted by limited fiber, the shaping schematic cross section becoming the first embodiment of the device of fiber matting with lay,
Fig. 2 illustrate according to of the present invention for molten to blow, the schematic cross section of another embodiment of the device of shaping and lay limited fibre,
Fig. 3 illustrate according to of the present invention for molten to blow, the schematic cross section of the another embodiment of the device of shaping and lay limited fibre,
Fig. 4 illustrate according to of the present invention for molten to blow, the schematic cross section of another embodiment of the device of shaping and lay limited fibre.
Detailed description of the invention
First embodiment of apparatus of the present invention is shown with cross-sectional view signal property in FIG.This embodiment has and molten blow and spray mouth 1 and remain on the molten profile member 2 blowed and sprayed below mouth 1.Profile member 2 is formed by two cylinders driven in opposite directions 3, is formed with shaping gap 6 between described cylinder.Shaping gap 6 in the vertical direction between cylinder 2.1 and 2.2 extends, and wherein, cylinder 2.1 and 2.2 is about the molten longitudinal axis symmetry blowing and spraying mouth 1.The drive unit of cylinder 2.1 and 2.2 is not here shown specifically and can be realized by driving group or independent driving device.Cylinder 2.1 and 2.2 has ventilative cylinder wall 3 respectively, described cylinder wall with by the given circumferential speed of the drive unit of cylinder 2.1 and 2.2 opposite to each other at fiber blowing direction upper rotary.
Molten blow and spray mouth 1 and be arranged in frame 13 in adjustable for height mode above cylinder 2.1 and 2.2.At this, molten blow and spray mouth 1 and comprise that be arranged in central plane, at least one row nozzle passage 10, described nozzle passage acting in conjunction on the air nozzle 11.1 and 11.2 of outlet side to produce fibre stream 7.Air nozzle 11.1 and 11.2 is equipped with two delivery air chambers 12.1 and 12.2, and described delivery air chamber is connected with here unshowned compressed air source.The molten nozzle passage blowed and sprayed on mouth 1 extends in the length of maximum seven meters.Correspondingly, cylinder 2.1 and 2.2 has the length of about seven meters equally to be formed into groove part gap 6.Also mention so-called working width at this, fiber matting is formed by synthetic fiber continuously with this working width.
In order to especially affect the lay of fiber in shaping gap 6 and shaping, molten blow and spray mouth 1 in frame 13 can at various height on adjustment, thus molten blow and spray to be formed between mouth 1 and shaping gap 6 blow path freely.This is blowed path freely and is represented by letter b in FIG and decided by the molten distance blowed and sprayed between mouth 1 bottom side and cylinder 2.1 and 2.2 end face.
According to fiber type and fibre technology, can 100mm to 2000mm scope internal classification ground or infinitely adjustment blow path.The fibre stream directly entered in shaping gap can be affected thus without the need to addition thereto.
In the embodiment shown in fig. 1, the cylinder wall 3 of fiber matting directly by cylinder 2.2 after discharging from shaping gap 6 is derived.On the outlet side of cylinder 2.2, be formed with suction chamber 4, this suction chamber connects with negative pressure source 5 for this reason.By the suction streams produced from surrounding environment, achieve the enforced guiding to fiber matting, fiber matting can be made thus to deflect and directly and cylinder 2.2 tangentially derive.The blow air making fibre stream shaping receives advantageous by suction chamber 4 and negative pressure source and discharges.In order to support the discharge of blow air, on opposed cylinder 2.1, can form the second suction chamber equally, this second suction chamber is connected with a negative pressure source.
The possible structure of the second suction chamber shown in broken lines on cylinder 2.1 in FIG.The suction chamber 4 ' of cylinder 2.1 and the suction chamber 4 of cylinder 2.2 have the Angle Position staggered on cylinder 2.1 and 2.2, respectively to affect the discharge of fiber placement and blow air.Suction chamber 4 and 4 ' Angle Position can realize in the mode that can adjust in the perimembranous of cylinder 2.1 and 2.2.Realize the high degree of flexibility being used for fiber placement thus.Therefore, suction chamber 4 and 4 ' can be arranged (as shown in Figure 1) relative to shaping gap 6 with mutually staggering, or relatively adjusts on cylinder 2.1 and 2.2 with putting.
In the embodiment (wherein only cylinder 2.1 has suction chamber 4) shown in Fig. 1, the Angle Position of suction chamber 4 not only can be shifted clockwise in the perimembranous of cylinder 2.2, and can displaced counter-clockwise.Therefore the region on the entrance of shaping gap 6 or the region on shaping gap 6 exports can be especially pumped in.
In the embodiment shown in fig. 1, cylinder 2.1 and 2.2 has the diameter of cylinder of formed objects respectively.Diameter of cylinder is with alphabetical D
1and D
2represent.D in this case
1=D
2.At this, the diameter of cylinder of cylinder 2.1 and 2.2 can be positioned at the scope of 100mm to 800mm.The shaping gap 6 formed by cylinder 2.1 and 2.2 has a shaped cross-sections, and this shaped cross-sections is determined by the distance between two cylinders 2.1 and 2.2.Distance between cylinder is represented by capital F in FIG.Distance F between cylinder 2.1 and 2.2 can change by traveling roller 2.1 or 2.2 or by mobile two cylinders 2.1 and 2.2.Therefore the cross section change of the symmetry of groove part gap 6 can be adjusted to when two cylinders 2.1 and 2.2 move simultaneously.The one-sided movement of a cylinder in cylinder 2.1 and 2.2 also can advantageously realize about the molten asymmetrical adjustment blowing and spraying mouth 1 axis.
The such as asymmetrical project organization in shaping gap shown in the embodiment according to Fig. 3.Embodiment according to Fig. 3 is consistent with the embodiment according to Fig. 1, therefore only explains difference below.In the embodiment shown in fig. 3, cylinder 2.1 has less diameter of cylinder.That is, the diameter of cylinder D of cylinder 2.1
1be less than the diameter of cylinder D of cylinder 2.2
2.The diameter ratio of the diameter of cylinder of cylinder 2.1 and 2.2 is positioned at D
1/ D
2to form different shaping gaps in the scope of=0.5 ~ 2.0.Provide additional flexibility thus to obtain possible effect when fibre forming.
In the embodiment shown in Fig. 1 and Fig. 3, polymer melt utilizes unshowned melt source here to flow to and molten blows and sprays mouth.By one or more pump, melt is guided through the molten nozzle passage 10 blowing and spraying mouth 1 under stress.The molten discharge side blowing and spraying mouth 1 is produced by air nozzle 11.1 and 11.2 air-flow of heat, and this air-flow is cooperatively blown into the fiber of discharging from nozzle passage 10 and blows path.The fibre stream 7 produced is vertically oriented and encounters in the end blowing path B on the cylinder wall 3 of shaping gap 6 and cylinder 2.1,2.2.Conductivity of Fiber to be guided in shaping gap 6 by the rotational motion of cylinder 2.1 and 2.2 and be shaped to fibre composites 8.The described shaping shaped cross-sections essentially by shaping gap 6 realizes, the fiber matting 9 occurred in the discharge side of cylinder 2.1 and 2.2 thus.Fiber matting 9 is carried by cylinder 2.2 and derives after leaving shaping gap 6.The drum rotation speed of cylinder 2.1 and 2.2 is set to synchronous and infinitely can adjusts within the scope of the circumferential speed of 0.1m/min to 50m/min.
In fig. 2 with cross-sectional view signal property illustrate according to of the present invention for molten to blow, another embodiment of the device of shaping and depositing synthetic fibers.This embodiment is basic consistent with the embodiment of Fig. 1, and therefore explain difference at this, other guide refers to description above.
It is in the embodiment shown in Figure 2, molten that to blow and spray mouth 1 consistent with the embodiment according to Fig. 1.In guiding frame 15, cylinder 2.1 and 2.2 is provided with as profile member 2 molten blowing and spraying below mouth 1.Cylinder 2.1 and 2.2 jointly can infinitely adjust its position in guiding frame 15, makes to be formed in the molten path B that blows blowed and sprayed between mouth 1 and shaping gap 6 on the one hand and changes, make the lay height A be formed between sieve band 14 and cylinder 2.2 change on the other hand.Lay height is represented by alphabetical A in fig. 2.Sieve band 14 below cylinder 2.1 and 2.2 is guided like this by multiple deflector roll 16, and fiber matting can tangentially be derived from cylinder 2.1 and 2.2.By the adjustment between cylinder 2.2 and sieve band 14, additionally there is the possibility forming the additional shaping area being used for fiber matting.
Cylinder 2.1 and 2.2 is jointly driven opposite to each other by motor 19.The driving shaft of cylinder 2.1 and 2.2 is interconnected by belt 20 and belt pulley 21 for this reason.The rotation direction of cylinder 2.1 and 2.2 points to the fibre stream 7 entering into shaping gap 6 in the same manner.Therefore the reception of fiber in shaping gap 6 can be controlled by the circumferential speed of cylinder 2.1 and 2.2.
The function of the embodiment according to apparatus of the present invention is in fig. 2 consistent with the above-mentioned embodiment according to Fig. 1.Just the sieve be arranged on below cylinder 2.1 and 2.2 that is laid in of fiber matting brings realization.Also can adjust larger lay height A at this, make the fibre composites of discharging from shaping gap 6 first be discharged by cylinder thus, be then freely laid in sieve and bring.In order to receive and discharge blow air, one or two cylinder can be made to be furnished with suction chamber, as described in the embodiment according to Fig. 1.
The embodiment according to apparatus of the present invention in fig. 2 is especially also applicable to produce bondedfibre fabric compound.Providing another embodiment according to apparatus of the present invention by Fig. 4, wherein multiplely molten blow and spray mouth and arrange abreast, being combined into bondedfibre fabric compound for making multiple fiber matting.Illustrate that three blow station 17.1,17.2 and 17.3 altogether in the embodiment shown in fig. 4, described in blow station and illustrate that one molten blows and sprays mouth respectively.Two above blow in station 17.1 and 17.2, and fibre stream is received by shaping gap and shaping and then sieving lay on band 14.This shaping gap 6 blowing station 17.1 and 17.2 from molten blow and spray to set between mouth 1 different blow path.Second blows station 17.2 and first, and to blow station 17.1 consistent, and thus at sieve band 14 lay second fiber matting on the surface, this second fiber matting and the first fiber matting form a compound.3rd blows station 17.3 illustrates that one to be arranged on short distance and moltenly to blow and spray mouth 1 above sieve band 14.The opposite side of sieve band 14 is formed with aspirator 18, and this aspirator is used for making fibre stream be received in sieve band 14 on the surface.Therefore the fiber matting produced by blowing station 17.3 is directly laid in sieve band 14 on the surface and form bondedfibre fabric compound with the fiber matting existed.
Be applicable to process all raw materials of weaving as polyolefin (cycloolefin of such as polyethylene, polypropylene, poly-octene, polymerization), aliphatic polyester, cyclo-aliphatic polyester and partially aromatic polyester, aliphatic polyamide and Nomex, poly (arylene sulfide) and polyarylene oxides, polyformaldehyde, Merlon, thermoplastic polyurethane or reaction resin (such as melamine resin, phenolic resins, epoxy resin) according to method of the present invention with according to device of the present invention.By blowing the adjustable in path, these raw materials can be made to produce very loose fiber matting with different fibre coarsenesses.Can realize with high homogeneity and steadiness in the shaping of inside, shaping gap.
Reference numerals list:
1 molten blows and sprays mouth
2 profile members
2.1,2.2 cylinders
3 cylinder walls
4,4 ' suction chamber
5,5 ' negative pressure source
6 shaping gaps
7 fibre stream
8 fibre composites
9 fiber mattings
10 nozzle passages
11.1,11.2 air nozzles
12.1,12.2 delivery air chambers
13 frames
14 sieve bands
15 guiding frames
16 deflector rolls
17.1,17.2,17.3 blow station
18 aspirators
19 motors
20 belts
21 belt pulleys
Claims (14)
1. one kind blow for limited fiber is melted, the shaping method becoming fiber matting with lay, in the method, utilize thermal current will be blown in shaping gap by the molten fiber blowing and spraying mouth generation, the fibre composites formed by shaping gap is discharged as fiber matting on the outlet side in shaping gap, it is characterized in that, blow and spray mouth and substantially vertically to fiber carry out free guiding to shaping gap adjustable blowing path from molten, the wherein said adjusting range blowing path is 100mm to 2000mm.
2. method according to claim 1, it is characterized in that, fiber is blown between two pivotal in opposite directions, cylinders with ventilative cylinder wall shaping to carry out, between these cylinders, be formed with shaping gap, and described cylinder is driven with identical, in 0.1m/min to 50m/min scope circumferential speed respectively.
3. method according to claim 2, is characterized in that, described fibre composites brings lay fibroblast to tie up bondedfibre fabric by described cylinder at sieve after shaping, and described sieve band makes fiber matting and cylinder tangentially discharge.
4. method according to claim 1 and 2, is characterized in that, in order to be adjusted to the shaped cross-sections at groove part gap place, and the symmetrical or distance that asymmetricly adjusts in the scope of 1mm to 100mm between cylinder between the rollers.
5. method according to any one of claim 1 to 4, it is characterized in that, be blown into by described fiber in symmetrical or asymmetrical shaping gap, wherein, described cylinder has the different diameter of cylinder that consistent diameter of cylinder or diameter proportion are 0.5 to 2.0 for this reason.
6. method according to claim 5, is characterized in that, the diameter of cylinder of described cylinder is 100mm to 800mm.
7. blow for limited fiber is melted, the shaping device becoming fiber matting with lay, have: blow and spray mouth (1) for generation of the molten of fibre stream; At least one profile member for the formation of shaping gap (6) (2), described fiber is molded into fibre composites and is discharged in this shaping gap, it is characterized in that, molten blow and spray to be formed between mouth (1) and shaping gap (6) adjustablely blow path (B) freely, wherein, this blows path (B) orientation and can being adjusted in the scope of 100mm to 2000mm by the molten Height Adjustment blowing and spraying mouth (1) and/or profile member (2) vertically.
8. device according to claim 7, it is characterized in that, described shaping gap (6) has the cylinder (2.1 of ventilative cylinder wall (3) at two, 2.2) formed between, described cylinder can be driven opposite to each other with the circumferential speed in 0.1m/min to 50m/min scope.
9. device according to claim 8, is characterized in that, at described cylinder (2.1,2.2) below is provided with the sieve band (14) of advancing, wherein, described sieve band (14) makes fiber matting and cylinder (2.1,2.2) tangentially discharge.
10. device according to claim 8 or claim 9, it is characterized in that, in order to be adjusted to the shaped cross-sections (F) at groove part gap (6) place, symmetrical or asymmetricly at cylinder (2.1,2.2) distance between in 1mm to 100mm scope, cylinder (2.1,2.2) is formed with in adjustable mode between.
Device according to any one of 11. according to Claim 8 to 10, it is characterized in that, described cylinder (2.1,2.2) has the different diameter of cylinder (D that consistent diameter of cylinder or diameter proportion are 0.5 to 2.0 in order to form symmetrical or asymmetrical shaping gap (6)
1, D
2).
12. devices according to claim 11, is characterized in that, described cylinder (2.1,2.2) has the diameter of cylinder in 100mm to 800mm scope.
Device according to any one of 13. according to Claim 8 to 12, it is characterized in that, described cylinder (2.1,2.2) one or two cylinders (2.1 in, 2.2) all there is inner suction chamber (4,4 '), described suction chamber and negative pressure source (5,5 ') connect, and described suction chamber is by the shielding of ventilative cylinder wall (3) versus environmental.
14. devices according to claim 13, is characterized in that, the Angle Position of described suction chamber (4,4 ') in cylinder (2.1,2.2) perimembranous is adjustable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012008625 | 2012-04-27 | ||
| DE102012008625.3 | 2012-04-27 | ||
| PCT/EP2013/057777 WO2013160134A1 (en) | 2012-04-27 | 2013-04-15 | Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104246045A true CN104246045A (en) | 2014-12-24 |
| CN104246045B CN104246045B (en) | 2016-11-02 |
Family
ID=48184159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380021780.1A Active CN104246045B (en) | 2012-04-27 | 2013-04-15 | For limited fibre meltblown, shaping and lay are become the method and apparatus of fiber matting |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2841634B1 (en) |
| CN (1) | CN104246045B (en) |
| WO (1) | WO2013160134A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11447893B2 (en) | 2017-11-22 | 2022-09-20 | Extrusion Group, LLC | Meltblown die tip assembly and method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018005081A1 (en) * | 2018-06-27 | 2020-01-02 | Oerlikon Textile Gmbh & Co. Kg | Process for producing a meltblown nonwoven and a meltblown system |
| CN212316388U (en) * | 2020-02-13 | 2021-01-08 | 上海捷英途新材料科技有限公司 | Production device for melt-blown filter cloth |
| US11958308B1 (en) | 2023-05-31 | 2024-04-16 | G13 Innovation In Production Ltd | Thermal paper, and methods and systems for forming the same |
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| US4375446A (en) * | 1978-05-01 | 1983-03-01 | Toa Nenryo Kogyo Kabushiki Kaisha | Process for the production of a nonwoven fabric |
| DE19913162C1 (en) * | 1999-03-24 | 2000-11-09 | Reifenhaeuser Masch | Thermoplastic polymer fiber fleece production apparatus comprises melt-blown fiber spinneret above machine with endless screen on which random fiber bundle is laid down as fleece by smoothing surfaces |
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| JPS5668152A (en) | 1979-11-01 | 1981-06-08 | Toa Nenryo Kogyo Kk | Nonwoven fabric |
| US6517648B1 (en) * | 2001-11-02 | 2003-02-11 | Appleton Papers Inc. | Process for preparing a non-woven fibrous web |
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| WO2008087193A2 (en) | 2007-01-19 | 2008-07-24 | Oerlikon Textile Gmbh & Co. Kg | Apparatus and method for depositing synthetic fibers to form a non-woven web |
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- 2013-04-15 CN CN201380021780.1A patent/CN104246045B/en active Active
- 2013-04-15 WO PCT/EP2013/057777 patent/WO2013160134A1/en active Application Filing
- 2013-04-15 EP EP13718534.4A patent/EP2841634B1/en not_active Revoked
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| US3978185A (en) * | 1968-12-23 | 1976-08-31 | Exxon Research And Engineering Company | Melt blowing process |
| US4375446A (en) * | 1978-05-01 | 1983-03-01 | Toa Nenryo Kogyo Kabushiki Kaisha | Process for the production of a nonwoven fabric |
| DE19913162C1 (en) * | 1999-03-24 | 2000-11-09 | Reifenhaeuser Masch | Thermoplastic polymer fiber fleece production apparatus comprises melt-blown fiber spinneret above machine with endless screen on which random fiber bundle is laid down as fleece by smoothing surfaces |
| CN101495208A (en) * | 2006-07-31 | 2009-07-29 | 3M创新有限公司 | Monocomponent monolayer meltblown web and meltblowing apparatus |
| WO2010054943A1 (en) * | 2008-11-13 | 2010-05-20 | Oerlikon Textile Gmbh & Co. Kg | Apparatus for producing a spunbonded fabric |
| US20100266824A1 (en) * | 2009-04-21 | 2010-10-21 | Alistair Duncan Westwood | Elastic Meltblown Laminate Constructions and Methods for Making Same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11447893B2 (en) | 2017-11-22 | 2022-09-20 | Extrusion Group, LLC | Meltblown die tip assembly and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104246045B (en) | 2016-11-02 |
| EP2841634B1 (en) | 2018-06-06 |
| WO2013160134A1 (en) | 2013-10-31 |
| EP2841634A1 (en) | 2015-03-04 |
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