WO1994002673A1 - Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung - Google Patents

Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung Download PDF

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Publication number
WO1994002673A1
WO1994002673A1 PCT/AT1993/000120 AT9300120W WO9402673A1 WO 1994002673 A1 WO1994002673 A1 WO 1994002673A1 AT 9300120 W AT9300120 W AT 9300120W WO 9402673 A1 WO9402673 A1 WO 9402673A1
Authority
WO
WIPO (PCT)
Prior art keywords
fleece
fibers
drum
fiber mats
machine
Prior art date
Application number
PCT/AT1993/000120
Other languages
German (de)
English (en)
French (fr)
Inventor
Wilhelm Bierbaumer
Original Assignee
Kühnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft m.b.H.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kühnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft m.b.H. filed Critical Kühnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft m.b.H.
Priority to KR1019940700695A priority Critical patent/KR100296021B1/ko
Priority to JP50401594A priority patent/JP3178840B2/ja
Priority to AT93914548T priority patent/ATE141346T1/de
Priority to CZ94626A priority patent/CZ283384B6/cs
Priority to DE59303438T priority patent/DE59303438D1/de
Priority to EP93914548A priority patent/EP0605687B1/de
Publication of WO1994002673A1 publication Critical patent/WO1994002673A1/de

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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
    • D04H1/70—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
    • D04H1/72—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 the fibres being randomly arranged
    • D04H1/732—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 the fibres being randomly arranged by fluid current, e.g. air-lay
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/488—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/485—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • 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
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • 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
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • the invention relates to a process for the fluid dynamic manufacture of deformable fiber mats of high tensile strength from a nonwoven fabric, consisting of cellulose fibers and thermoplastic fibers and / or natural fibers of vegetable origin impregnated with a binder, wherein a nonwoven cake is mixed in a drum and mixed in from this mixture Fiber fleece is formed, which is consolidated into a fiber mat in a needle machine. It also relates to the use of the fiber mats produced by the method and devices for carrying out this method.
  • nonwovens are mixed in a drum and from this mixture further nonwovens are formed, for example on a nonwoven drum. It has been shown that the transport of the fiberized fiber mass from the drum roll to the nonwoven laying drum is untargeted, which leads to irregularities of the fiber cake on the nonwoven laying drum, such as an irregular basis weight distribution across the width of the nonwoven formed. It also shows that the wood fibers impregnated with synthetic resin come to rest largely due to their higher weight on the underside of the laid fleece, while the thermoplastic and / or the non-impregnated natural fibers of vegetable origin are arranged in the upper layer of the laid fleece . This different layer structure now leads to problems in the further processing of these fiber mats, since the underside of the fiber mats
  • REPLACEMENT LEAF becomes sticky due to its high binder content, while the top is hardly glued.
  • a deformable fiber mat of high tensile strength should have a regular weight distribution in its width and a layer structure which consists of regularly mixed fiber of impregnated and non-impregnated type.
  • the invention provides to achieve the object that the fiber fleece cake 2.2 'is fed to a drum 6.6 *, in which the fiber fleece cake is defibrated, and that this is produced in this way
  • Fiber mass 14, 14 ' can be mixed by an air flow, the flow profile of which can be adjusted by the control elements 25, 26 mounted in an air duct 10, 10' as well as by a venturi rod 7, 7 1 arranged in the flow direction, whereby a fleece 18, 18 'is also mixed regular basis weight distribution is formed, which, after needling, is fed to a pressing device 21, 21 ', whereby a deformable fiber mat of high tensile strength 23, 23' is produced.
  • control elements consist of a plurality of adjustment flaps 25 distributed over the width of the air duct 10 and of a plurality of control parts 26 which are convexly curved towards the air flow and whose curvature is adjustable.
  • the invention further relates to an advantageous use of the fiber mat produced according to the invention, which is characterized in that one or more of the fiber mats 23, 23 'is used for the production of molded parts by pressing under elevated pressure and elevated temperature.
  • the invention also relates to an advantageous device for the fluid dynamic production of deformable fiber mats of high tensile strength from a nonwoven fabric, consisting of cellulose fibers and thermoplastic fibers and / or natural fibers of vegetable origin impregnated with a binder, which are arranged one after the other in the direction of the material flow from a nonwoven laying machine 1, a pair of press rolls 3, 4, a pair of feed rollers 5, a drum 6, an air duct 10 which is fed by fans 12 and in which one or more control parts 25 in the form of one or more adjustment flap (s) are attached, a venturi rod 7 a diffuser. 13, a fleece laying drum 15, transport rollers 16, 17, a basis weight measuring device 19, a needle machine 20, a press device 21, a cutting machine 22 and a stacking device 24.
  • the invention relates to a further advantageous device for the fluid dynamic production of deformable fiber mats of high tensile strength from a nonwoven fabric, consisting of cellulose fibers impregnated with a binder and thermoplastic fibers and / or natural fibers of vegetable origin, which are arranged one after the other in the direction of the material flow from a fleece laying machine l 1 , a pair of press rollers 3 ', 4', a pair of feed rollers 5 ', a reel 6', an air duct 10 ', which is fed by fans 12', in which one or more control elements 26 are convexly curved toward the air flow Shape and are adjustable in their curvature, a Venturi rod 7 ', from a diffuser 13', a fleece laying drum 15 ', the transport rollers 16', 17 ', a basis weight measuring device 19', a needle machine 20 ', a pressing device 21', a cutting ⁇ demaschine 22 'and a stacking device 24'.
  • REPLACEMENT LEAF Fig. 1 shows the implementation of the method according to the invention by means of a device which is equipped with a control part in the form of an adjustment flap.
  • FIG. 2 shows the implementation of the method according to the invention by means of a device with the corresponding reference numerals provided with lines, which is equipped with a control part which is curved in a convex manner towards the air flow.
  • 3 and 4 show a perspective view in a schematic diagram of the venturi rods used as control parts in the method with the schematic course of the air flow.
  • thermoplastic fibers for example polyester, polyolefin, polyamide, polyacrylic -, EVA and / or natural fibers such as flax, hemp and cellulose fibers
  • a non-woven cake 2.2 *
  • This is then compressed by the feed rollers (3,3 ', 4,4') and fed by means of a pair of feed rollers (5,5 '), a drum (6, 6'), the surface of which is provided with needles or saw teeth which provide the De-fleece the fleece cake (2,2 ').
  • an air flow is generated in the air duct 10, 10', the flow speed of which can be adjusted by several control parts 25, 26 distributed over the width of the air duct (see FIGS. 1, 2).
  • the control parts are in the form of adjusting flaps 2, which are controlled by adjusting devices 11, 11 '.
  • the control parts 26 are curved toward the air flow, the curvature of which is adjustable.
  • the mixing of the fibers in the air flow also depends on the flow rate. This mixing is carried out by the
  • REPLACEMENT LEAF ⁇ Provided an optimized Venturi rod 7,7 'which can be rotated around its axis by 30 ° and which has webs 8,8' which can be modified in width.
  • the flow rate of the air-fiber mixture is increased, depending on the width and rotational position of the slots, as a result of which the fibers 14, 14' in are additionally mixed the downstream diffuser 13, 13 '.
  • such a variable flow rate causes a scoop effect, which enables the fibers 14, 14 'to be laid regularly on the fleece laying drum 15, 15'.
  • the newly formed fleece 18, 18 ' is over the transport rollers 16, 16'. and 17, 17 'of the basis weight measuring device 19, 19'.
  • the fleece 18, 18' is needled with a further fleece 27, 27 ', for example consisting of polyester, polyamide, glass fibers or jute, whereby a sufficiently deformable fiber mat 28, 28' is formed.
  • the pressing device 21, 21 ' which can be, for example, a calender or a belt press.
  • the fiber mat is pre-compressed between the calender rolls at a temperature of 25-150 ° C. and a specific pressure of 5-50 kp / cm 2 , the wood fibers impregnated with synthetic resin being bonded even more firmly to the foreign fibers.
  • the fiber mat can also be higher during further processing, for example during compression molding
  • the pre-compressed mats 24, 24 ' are then stacked on passing through the cutting machine 22, 22' on the stacking device 23, 23 '.
  • the fiber mat produced by the method according to the invention is advantageously used for the production of molded parts by pressing under increased pressure and elevated temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Inorganic Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
PCT/AT1993/000120 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung WO1994002673A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1019940700695A KR100296021B1 (ko) 1992-07-17 1993-07-15 연성 및 고인장성(tear-resistant)을가지는섬유매트의유동역학적제조방법및장치
JP50401594A JP3178840B2 (ja) 1992-07-17 1993-07-15 大きな引張り強さを有する変形可能な繊維マットの流体動力学的な製造方法及びその製造装置
AT93914548T ATE141346T1 (de) 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung
CZ94626A CZ283384B6 (cs) 1992-07-17 1993-07-15 Způsob pneumaticko dynamické výroby tvarovatelných vláknitých rohoží s vysokou pevností v tahu z vláknitého rouna a zařízení pro provádění tohoto způsobu
DE59303438T DE59303438D1 (de) 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung
EP93914548A EP0605687B1 (de) 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0147092A AT398438B (de) 1992-07-17 1992-07-17 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung
ATA1470/92 1992-07-17

Publications (1)

Publication Number Publication Date
WO1994002673A1 true WO1994002673A1 (de) 1994-02-03

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PCT/AT1993/000120 WO1994002673A1 (de) 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung

Country Status (13)

Country Link
EP (1) EP0605687B1 (ja)
JP (1) JP3178840B2 (ja)
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WO1997022743A2 (en) * 1995-12-08 1997-06-26 E.I. Du Pont De Nemours And Company Method and apparatus for improving the air flow through an air duct in a dry fiber web forming system
WO2002011976A1 (de) * 2000-08-07 2002-02-14 Möller Plast GmbH Verfahren zum herstellen von thermoplastisch gebundenem naturfasermaterial in schütt- und rieselfähiger form
DE102016009679A1 (de) * 2016-08-10 2018-02-15 Hubert Hergeth Vliesbildemaschine

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JP4515196B2 (ja) * 2004-08-25 2010-07-28 株式会社リブドゥコーポレーション パルプ粉砕装置
AT502643B1 (de) * 2005-11-02 2007-05-15 Angleitner Helmut Dipl Ing Einrichtung zum ablagern von in einem gasstrom transportierbaren fasern
GB2452235A (en) * 2007-03-05 2009-03-04 Eco Mats Ltd Plant fibre mat and method of making a plant fibre mat
KR102450905B1 (ko) * 2011-09-30 2022-10-04 오웬스 코닝 인텔렉츄얼 캐피탈 엘엘씨 섬유질 재료들로부터 웹을 형성하는 방법
JP6421316B2 (ja) * 2014-03-11 2018-11-14 セイコーエプソン株式会社 シート製造装置、シート製造方法及びこれらに用いる粉体
CN108754875B (zh) * 2018-08-28 2024-07-30 仪征市佳禾机械有限公司 广谱气流成网机

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DE2426405A1 (de) * 1973-06-15 1975-01-09 Morrison Machine Co Vorrichtung zur herstellung von nichtgewebten faserbahnen
US3918126A (en) * 1974-07-12 1975-11-11 Rando Machine Corp Method and machine for forming random fiber webs
WO1989005366A1 (en) * 1987-12-11 1989-06-15 Kühnsdorfer Holzfasermattenwerk Pacht- Und Betrieb Process for manufacturing storable, easily handled fibre mats
EP0392983A1 (de) * 1989-04-14 1990-10-17 Matec Holding Ag Verfahren zum Herstellen eines geformten Bauelements

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DE1635615C2 (de) * 1964-06-11 1974-08-22 Bernard Marckolsheim Bas-Rhin Rudloff (Frankreich) Verfahren zum kontinuierlichen Herstellen von einschichtigen Wirrfaservliesen mit Füllstoffen
CH529869A (de) * 1970-12-31 1972-10-31 Curlator Corp Florbildungsmaschine
DE2426405A1 (de) * 1973-06-15 1975-01-09 Morrison Machine Co Vorrichtung zur herstellung von nichtgewebten faserbahnen
US3918126A (en) * 1974-07-12 1975-11-11 Rando Machine Corp Method and machine for forming random fiber webs
WO1989005366A1 (en) * 1987-12-11 1989-06-15 Kühnsdorfer Holzfasermattenwerk Pacht- Und Betrieb Process for manufacturing storable, easily handled fibre mats
EP0392983A1 (de) * 1989-04-14 1990-10-17 Matec Holding Ag Verfahren zum Herstellen eines geformten Bauelements

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997022743A2 (en) * 1995-12-08 1997-06-26 E.I. Du Pont De Nemours And Company Method and apparatus for improving the air flow through an air duct in a dry fiber web forming system
US5778494A (en) * 1995-12-08 1998-07-14 E. I. Du Pont De Nemours And Company Method and apparatus for improving the air flow through an air duct in a dry fiber web forming system
WO1997022743A3 (en) * 1995-12-08 2002-02-14 Du Pont Method and apparatus for improving the air flow through an air duct in a dry fiber web forming system
WO2002011976A1 (de) * 2000-08-07 2002-02-14 Möller Plast GmbH Verfahren zum herstellen von thermoplastisch gebundenem naturfasermaterial in schütt- und rieselfähiger form
DE102016009679A1 (de) * 2016-08-10 2018-02-15 Hubert Hergeth Vliesbildemaschine

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JP3178840B2 (ja) 2001-06-25
HUT68090A (en) 1995-05-29
SI9300389A (en) 1994-03-31
MX9304337A (es) 1994-04-29
HU9400763D0 (en) 1994-06-28
ATE141346T1 (de) 1996-08-15
EP0605687A1 (de) 1994-07-13
JPH06511294A (ja) 1994-12-15
KR940702236A (ko) 1994-07-28
HRP931057B1 (en) 1999-04-30
CZ62694A3 (en) 1994-06-15
AT398438B (de) 1994-12-27
HU216949B (hu) 1999-10-28
CZ283384B6 (cs) 1998-04-15
EP0605687B1 (de) 1996-08-14
KR100296021B1 (ko) 2001-10-24
ES2092315T3 (es) 1996-11-16
HRP931057A2 (en) 1995-10-31
DE59303438D1 (de) 1996-09-19
ATA147092A (de) 1994-04-15
ZA935095B (en) 1994-06-01

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