EP0605687B1 - 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
EP0605687B1
EP0605687B1 EP93914548A EP93914548A EP0605687B1 EP 0605687 B1 EP0605687 B1 EP 0605687B1 EP 93914548 A EP93914548 A EP 93914548A EP 93914548 A EP93914548 A EP 93914548A EP 0605687 B1 EP0605687 B1 EP 0605687B1
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Prior art keywords
fleece
air channel
rollers
flow
fibrous
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EP93914548A
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German (de)
English (en)
French (fr)
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EP0605687A1 (de
Inventor
Wilhelm Bierbaumer
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Kuehnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft Mbh
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Kuehnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft Mbh
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    • 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 method 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, wherein a nonwoven fabric cake is fed to a drum in which the nonwoven fabric cake is defibrated, whereby this fiber mass produced in this way is mixed by an air flow, the flow profile of which can be adjusted by the control elements attached in an air duct, and a fiber fleece is formed from this mixture, which is consolidated into a fiber mat in a needle machine.
  • nonwovens are mixed in a drum and further nonwovens are formed from this mixture, 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 in the fiber cake on the nonwoven laying drum and to an irregular basis weight distribution across the width of the nonwoven formed.
  • DE-C-1 635 615 discloses a process for the continuous production of single-layer random fiber nonwovens connected by synthetic resin powder with the addition of powdered fillers.
  • the lighter fillers are added to the random fiber fleece before reaching the first vortex zone, in which it is swirled in an obliquely upward air flow with the fibers of the dissolved fleece and combined to form a fleece, and then the heavier fillers added to the fleece before reaching the second vortex zone, swirled in this with the again dissolved, obliquely thrown down fleece particles in an additional air stream directed transversely thereto and solidified in fleece form after removal from this zone.
  • This method now has the disadvantage that the heavier fillers in the centrifugal direction are more strongly affected by the additional air flow and therefore necessarily form the bottom layer on the fleece laying drum, so that a fleece with an irregular layer structure is formed.
  • the object on which the invention is based is now to avoid the disadvantages of the known methods, so that a deformable fiber mat of high tensile strength with regular weight distribution in its width and with a layer structure which consists of regularly mixed fibers of impregnated and non-impregnated type is provided.
  • the invention provides for the object to be achieved by additionally mixing the fiber mass (14, 14 ') in the air duct (10, 10') the venturi rod (7.7 ') which can be rotated about its axis and which has webs (8,8') which can be modified in width, can be adjusted, so that a fleece (18, 18 ') with a regular basis weight distribution is formed, which after needling has taken place a pressing device (21, 21 ') is supplied, whereby a deformable fiber mat of high tear 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 adjustable in their curvature.
  • 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 increased 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, consisting of a fleece laying machine (1), a pair of press rolls, arranged sequentially in the material flow (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 flaps (n ) are attached, from a diffuser (13), a fleece laying drum (15), transport rollers (16, 17), a basis weight measuring device (19), a needle machine (20), a pressing device (21), a cutting machine (22), a stacking device (24), a venturi rod (7, 7 ') which can be rotated about its axis in the air duct (20) having width-modifiable webs (8, 8
  • the invention further relates to a further advantageous device for the fluid-dynamic production of deformable fiber mats of high tear strength from a nonwoven fabric, consisting of cellulose fibers and thermoplastic fibers and / or natural fibers of vegetable origin impregnated with a binder, consisting of a fleece laying machine (1 ') arranged in succession in the material flow direction, a pair of press rollers (3 ', 4'), a pair of feed rollers (5 '), a drum (6'), an air duct (10 ') which is fed by fans (12'), 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 machine (22 '), a stacking device (24'), wherein in the air duct (10 ') a plurality of control elements (26), which are convexly curved towards the air flow and adjustable in their curvature, and a
  • 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 convexly curved 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 ') is formed.
  • the mixing of the fibers in the air flow also depends on the flow rate.
  • This mixing is carried out by the 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 nonwoven 18, 18 ' is fed to the basis weight measuring device 19, 19' via the transport rollers 16, 16 'and 17, 17'.
  • These measurement results indicate a more regular basis weight distribution than those measurement results which could be achieved with the known methods for forming fleece. If the basis weight distribution is nevertheless insufficient, it can be varied by changing the flow velocities by adjusting one or more control parts 25, 26. Furthermore, the adjustability of the venturi rod 7, 7 'provides a further possibility for optimizing the flow conditions.
  • 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 , whereby the wood fibers impregnated with synthetic resin are bound even more firmly to the foreign fibers.
  • the fiber mat can also be higher during further processing, for example during compression molding Absorb tensile forces and is therefore less susceptible to crack formation.
  • the pre-compressed mats 24, 24' are stacked on the stacking device 23, 23 '.
  • the fiber mats produced by the method according to the invention are advantageously used for the production of molded parts by pressing under increased pressure and elevated temperature.

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  • 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)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP93914548A 1992-07-17 1993-07-15 Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung Expired - Lifetime EP0605687B1 (de)

Applications Claiming Priority (3)

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
AT1470/92 1992-07-17
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

Publications (2)

Publication Number Publication Date
EP0605687A1 EP0605687A1 (de) 1994-07-13
EP0605687B1 true EP0605687B1 (de) 1996-08-14

Family

ID=3514606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93914548A Expired - Lifetime EP0605687B1 (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 (hr)
JP (1) JP3178840B2 (hr)
KR (1) KR100296021B1 (hr)
AT (2) AT398438B (hr)
CZ (1) CZ283384B6 (hr)
DE (1) DE59303438D1 (hr)
ES (1) ES2092315T3 (hr)
HR (1) HRP931057B1 (hr)
HU (1) HU216949B (hr)
MX (1) MX9304337A (hr)
SI (1) SI9300389A (hr)
WO (1) WO1994002673A1 (hr)
ZA (1) ZA935095B (hr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108589029A (zh) * 2011-09-30 2018-09-28 欧文斯科宁知识产权资产有限公司 玻璃纤维的分层的叠毡及其形成方法

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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
DE10038405C1 (de) * 2000-08-07 2002-05-02 Moeller Plast Gmbh Verfahren zum Herstellen von thermoplastisch gebundenem Naturfasermaterial
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
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
DE102016009679A1 (de) * 2016-08-10 2018-02-15 Hubert Hergeth Vliesbildemaschine
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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US3768119A (en) * 1970-12-31 1973-10-30 Curlator Corp Machine for forming random fiber webs
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108589029A (zh) * 2011-09-30 2018-09-28 欧文斯科宁知识产权资产有限公司 玻璃纤维的分层的叠毡及其形成方法
CN108589029B (zh) * 2011-09-30 2021-03-12 欧文斯科宁知识产权资产有限公司 玻璃纤维的分层的叠毡及其形成方法

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ES2092315T3 (es) 1996-11-16
CZ283384B6 (cs) 1998-04-15
DE59303438D1 (de) 1996-09-19
CZ62694A3 (en) 1994-06-15
HU9400763D0 (en) 1994-06-28
HUT68090A (en) 1995-05-29
EP0605687A1 (de) 1994-07-13
JP3178840B2 (ja) 2001-06-25
HU216949B (hu) 1999-10-28
KR940702236A (ko) 1994-07-28
JPH06511294A (ja) 1994-12-15
WO1994002673A1 (de) 1994-02-03
MX9304337A (es) 1994-04-29
ATE141346T1 (de) 1996-08-15
ATA147092A (de) 1994-04-15
HRP931057A2 (en) 1995-10-31
AT398438B (de) 1994-12-27
SI9300389A (en) 1994-03-31
HRP931057B1 (en) 1999-04-30
KR100296021B1 (ko) 2001-10-24
ZA935095B (en) 1994-06-01

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