EP0158156B1 - Formbare Fasermatte und Verfahren zu deren Herstellung - Google Patents

Formbare Fasermatte und Verfahren zu deren Herstellung Download PDF

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Publication number
EP0158156B1
EP0158156B1 EP85103014A EP85103014A EP0158156B1 EP 0158156 B1 EP0158156 B1 EP 0158156B1 EP 85103014 A EP85103014 A EP 85103014A EP 85103014 A EP85103014 A EP 85103014A EP 0158156 B1 EP0158156 B1 EP 0158156B1
Authority
EP
European Patent Office
Prior art keywords
weight
fibres
fact
mattress
textile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85103014A
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English (en)
French (fr)
Other versions
EP0158156A1 (de
Inventor
Michel Vernois
François Paugam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isoroy Te Lisieux Frankrijk SA
Original Assignee
ISOROY SA
Isoroy SA
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 ISOROY SA, Isoroy SA filed Critical ISOROY SA
Priority to AT85103014T priority Critical patent/ATE43870T1/de
Publication of EP0158156A1 publication Critical patent/EP0158156A1/de
Application granted granted Critical
Publication of EP0158156B1 publication Critical patent/EP0158156B1/de
Expired legal-status Critical Current

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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
    • D04H1/40—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin 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
    • D04H1/435—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
    • D04H1/42—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
    • D04H1/4374—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 using different kinds of webs, e.g. by layering webs
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249922—Embodying intertwined or helical component[s]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y10T442/66—Additional nonwoven fabric is a spun-bonded fabric

Definitions

  • the present invention relates to a moldable fibrous mattress based on cellulosic fibers, as well as its manufacturing process, said fibrous mattress being intended for the production of shaped parts finding their application in many fields.
  • the present invention aims to remedy the drawbacks of the above materials, by providing a moldable fibrous mattress, of easy implementation with a view to molding operations, having an excellent aptitude for significant deformations without tearing and thereby leading to shaped parts which are difficult to obtain with known materials.
  • the mattress of the type consisting of a superposition of fine sheets which are needled but not rigidly linked to each other, has an overall composition comprising in particular from 5 to 95% by weight of cellulose fibers resulting from dry defibration and having a residual humidity of less than 15%, and from 0.5 to 10% approximately of synthetic or natural textile fibers having a length of at least 30 mm with at least two half-corrugations per centimeter of length.
  • the mattress comprises from 5 to 80% by weight approximately of said cellulosic fibers, from 0.5 to 10% approximately of said textile fibers and, moreover, from 5 to 60% by weight approximately of a material thermoplastic.
  • the mattress comprises up to 95% by weight of said fibers cellulosics and from about 0.5 to 10% of said textile fibers, the cellulose fibers being previously bonded using a resin, for example phenolic.
  • the mixture of the constituents is formed, the mixture thus obtained is carded, a fine sheet of grammage between 10 and 200 g / m 2 is formed , it is superimposed by coating successive folds of said ply and a needling is carried out to form the mattress, the grammage of which is adjusted to the desired value, up to approximately 2 kg / m 2 .
  • the sizing of the cellulose fibers is carried out before mixing with the fibers. textiles.
  • the cellulose fibers are advantageously of the type obtained thermomechanically from wood and have a low residual humidity, less than 15%, which in no way excludes the possibility of using cellulose fibers obtained by another associated defibering technique. to possible refining according to the various processes well known in the paper or in the fiberboard sector. These fibers may, if necessary, have received a treatment capable of giving them certain properties required depending on the intended application.
  • a wax or paraffin can be incorporated in order to obtain a final product that is not very sensitive to water.
  • the textile fibers having a crimp of several half-undulations per centimeter must have a length such that during the shaping of the mattress by the carding, topping and needling technique, they give a certain mechanical strength to the mattress in order to make it transportable without other form of consolidation.
  • these fibers will impart a certain deformability to the material without any phenomenon of tearing being manifested within the mattress.
  • polypropylene or polyester fibers of 38 mm of average length and comprising 3 to 5 half-waves per centimeter have been found to be perfectly suitable.
  • thermoplastic material is an integral part of the mattress, either in the form of fibrils or fibers, or in the form of powder.
  • the constituent material is thermoplastic and with a softening point of less than 200 ° C.
  • a softening point of less than 200 ° C.
  • thermoplastic fibers after melting or softening during the subsequent preheating operation, will give better cohesion to the molded product, better mechanical characteristics as well as a certain hydrophobicity in the shaped panel.
  • thermoplastic fibers a thermoplastic polymer in the form of powder or granules of small diameter.
  • This polymer should also have a softening point below 200 ° C.
  • the conformation of the mattress calls for textile-type equipment associating a loader, a carding device, a coating machine and a needling machine.
  • the carding machine must be provided with a carding machine adapted to the treatment of the fibrous mixture previously described so that there is neither jamming in the machine nor segregation between the long fibers and the short fibers, or at least, the least segregation possible.
  • the carding machine will be fitted with a covering designed to constrain the fibers to pass through the carding cylinder or cylinders, as well as a device for recovering short fibers which can be returned to the machine head in the loader.
  • the fibrous mixture comprising the wood fibers, the thermoplastic material as well as the very long textile fibers is in the form of a sheet of low grammage (10 to 200 g / m 2 ) which is maintained possibly by an appropriate device of the double canvas type up to the coating machine.
  • This tablecloth makes it possible to constitute a mattress of heavy grammage (2 kg / m 2 approximately) by stacking successive layers.
  • the weight of the mattress per square meter can be easily modified by varying, for example, the relative speed between the feeding and exit belts of the coating machine.
  • the number of back and forth movements of the mobile device of the coating machine gives the number of successive stacks in a given time and allows the grammage of the mattress to be adjusted within a wide range.
  • the mattress can be obtained in variable widths by simply adjusting the travel of the reciprocating device of the coating machine. The maximum width will only depend on the length of the guide on which the covering element moves.
  • an appropriate device associated with the coating machine will make it possible to pour the thermoplastic material in the form of powder or granules of small diameter in order to constitute a material in layers.
  • thermoplastic material can thus be inserted, either during each stack of plies coming from the carding machine, or even after a determined number of stacks of plies.
  • the “low density mat is then conveyed by a conveyor belt placed perpendicular to the carding-lapping axis, to a needling machine or possibly a pre-needling machine which will give the final mattress its self-support.
  • the mattress has the consistency of a carpet and can therefore be rolled up on itself. It is in this form of rolls or reels that it can be handled with a view to the transformation or molding operation, without however excluding presentation in format if necessary, thanks to an appropriate cutting device.
  • the density of needles of the needling machine makes it possible to vary to a certain extent the thickness of the mattress that one wishes to obtain as well as its mechanical strength. Thus, a small needling will lead to a sparse but very compressible mattress, while a tighter needling will make it possible to develop a thinner mattress.
  • this needling operation while imparting sufficient mechanical strength to the mattress to be easily manipulated, will allow the "mat to maintain excellent deformability in all directions from which it will result in a very good ability to molding, the latter resulting in particular from the possible play of the fine layers with respect to each other.
  • the mattress emerging from the tablecloth and a synthetic fleece of the nonwoven type made of polyethylene, polypropylene or any other thermoplastic material with a softening point of less than 200 ° C. can be needled simultaneously, which, once heated, will allow a better hold of the decorative material by thermofusion or heat sealing of this nonwoven.
  • the surface material is itself highly extensible in all directions so as not to interfere unfavorably on the moldability of the fibrous mat.
  • the molding or shaping operation of the mattress is preceded by a stage of preheating the mattress, preferably just before going through the press.
  • a suitable device attached to the press very quickly performs this preheating of the mattress.
  • the purpose of preheating is to bring the thermoplastic material or materials present in the mattress to a temperature above their softening point.
  • thermoplastic materials will thus creep during pressure molding and participate, after cooling, in the consolidation of the shaped panel while giving it certain desired physical properties, hydrophobicity for example.
  • the preheating temperature is between 100 and 200 ° C.
  • preheating may use contact, hot air through and high frequency heating devices.
  • the apparatus which seems the most suitable in order to have a good homogeneity of cooking of the fibrous mat and a short heating time compatible with the molding cycles, is a heating device by high frequency possibly associated with a heating by contact of the plates. of the device.
  • the mattress is immediately transferred to the press in order to proceed with molding.
  • a decorative material constituting a "surface skin” is interposed between the temperature mattress and the mold.
  • the molding can be carried out with a cold mold, or a slightly heated mold. In some cases, in fact, a mold brought to a temperature between 60 and 100 ° C. gives a better surface finish to the finished part.
  • the molding cycle is between 15 seconds and 3 minutes and the pressure exerted between 20 and 100 kg / cm 2.
  • the material without decorative coating appears as a fibrous panel in shape, with a density between 0.7 and 1.1.
  • the above moldable mattress makes it possible to obtain parts with strong deformation, free from tears or lack of material, following stretching.
  • the shaped parts thus obtained remain sufficiently porous to carry out a subsequent dressing by suction through the constituent panel.
  • the mattress weighing between 700 and 2,500 g / m 2 is needled to form a roll.
  • the "mat” is then preheated by means of a high-frequency heating device by dielectric losses, the power of which is between 30 and 50 kw / h and comprising 2 heating plates maintained at a temperature in the region of 140 ° C.
  • the mattress portion of approximately one square meter is thus brought homogeneously, both at the core and on the surface, to a temperature of 170 ° C. between 30 seconds and one minute depending on the power delivered by the high frequency generator. (frequency 27.12 MHz).
  • This preheating device is located in the immediate vicinity of the press in order to have a minimum of heat loss during the transfer of the mattress between the preheating station and the press.
  • this transfer can be carried out in a thermally insulated tunnel opening at the level of the press plates.
  • the molding requires between 20 seconds and 2 minutes, depending on the type of part, in a cold mold, or at 80 ° C maximum. In general, a cycle of the order of 45 seconds to 1 minute makes it possible to obtain pieces of desired deformation and with an adequate densification of the material.
  • a pressure of between 40 and 60 kg / cm 2 is exerted on the mattress in order to obtain the required properties. Heating the mold to a temperature of 80 ° C. leads to a better surface condition of the finished part without having a fibrous appearance. The surface is then slightly glazed.
  • the shaped material After cooling, the shaped material remains sufficiently porous in air to require no other operation of the microperforation type.
  • the cellulosic fibers and the textile fibers respectively have the same characteristics, but the content of cellulosic fibers can reach 95% by weight while the content of thermoplastic material is zero.
  • the cellulosic fibers are glued with a thermosetting resin before mixing with the textile fibers, the sequence of operations being identical.
  • the preheating operation is eliminated since no thermoplastic material is to be brought to its melting point, while a steam treatment is carried out just before molding or during molding in a manner known per se, the molding being carried out in a hot mold at a temperature sufficient for the polymerization of the sizing resin, for example at a temperature above 200 ° C. for a phenolic resin.
  • the molding cycle and conditions are identical for the two embodiments described above.
  • the mattress according to the invention it is possible to mold parts such as shaped panels for interior trim of automobile doors comprising an integrated armrest, from which a very strong deformation results. No tear initiation is noted, even on the parts with strong stretch.
  • Cutting and inserting inserts can also take place in the same cycle, resulting in ease of implementation and increased productivity.
  • packing materials it is also possible, at the level of the coating operation, to interpose one or more layers with particular properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Details Of Garments (AREA)

Claims (7)

1. Verformbare genadelte Fasermatte, die auf Basis von Zellulosefasern und synthetischer oder natur Textilfasem ist, und aus einem aufeinanderlegen von feinen Vliesschichten, die genadelt aber nicht steif miteinander gebindet sind, besteht, dadurch gekennzeichnet, dass sie einen zusammensetzung aufweist, die 5 bis 95 % von Zellulosefasem, die aus einem trocken Auflösung stammen und einen Endfeuchtigkeit niedriger als 15 % aufweisem und noch etwa 0,5 bis 10 % Textilfasern, die mindestens 30 mm lang sind, mit zwei halben Krauselungen pro längszentimeter, einschliesst.
2. Fasermatte nach Anspruch 1, dadurch gekennzeichnet, dass die Zellulosefasern dem typ der über thermomechanischen Weg aus Holz hergestellt ist, gehören.
3. Fasermatte nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Textilfasern aus Polypropylen beziehungsweise aus Polyester bestehen.
4. Fasermatte nach irgeneinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die feine Vliesen, die genadelt werden sollen, einen eigengewicht von 10 bis 200 g/m2, gegenüber einem Mattengewicht von etwa 2 kg/m2, aufweisen.
5. Fasermatte nach irgeneinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, das die Matte 5 bis 80 % von Zellulosefasern, 0,5 bis 10 % von Textilfasern und ferner 5 bis 60 % von Thermoplast, bestehend aus Fibrillen, Fasern oder eine Pulver aus einem, beweisendern einem Erweichungspunkt niedriger als 200 °C, Material wie Polyethylen oder Polypropylen, enthaltet.
6. Verfahren für die Herstellung von einer Fasermatte nach irgeneinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass man die Zellulosefasern, die vorher geöffnete Textilfasern und, unter Umständen, dem Thermoplast vermischt, man die, so erhaltene als eine feine Vlies, dass einem Gewicht von 10 bis 200 g/m2 aufweist, Mischung kardiert, und danach man, mit Vlieslegen der aufeinander folgenden Schichten von obengenannt Vlies aufeinanderlegt, für eine Matte zu bilden, für welche einem Gewicht am die Gewunschten Wert bis etwa 2 kg/m2 eingestellt wird, dann die besagte Matte genadelt wird, und die verschiedene Arbeitsstüfe so durchgefuhrt sind, dass die Matte einen Zusammensetzung aufweist, die 5 bis 95 % von Zellulosefasern, die aus einem trocken Auflösung stammen und einen Endfeuchtigkeit niedriger als 15 % aufweisen, und noch etwa 0,5 bis 10 % Textilfasern, die mindestens 30 mm lang sind, mit zwei halben Krauselungen pro langszentimeter, einschliest.
7. Verfahren für die Herstellung von einer Fasermatte nach Anspruch 6, dadurch gekennzeichnet, das man, unter Umstanden während der nadeln, ein solchen Oberflächenmaterial, wie einen synthetischer Textilverbundstoff, der einen Erweichungspunkt niedriger als 200 °C erweist, einarbeitet.
EP85103014A 1984-03-20 1985-03-15 Formbare Fasermatte und Verfahren zu deren Herstellung Expired EP0158156B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103014T ATE43870T1 (de) 1984-03-20 1985-03-15 Formbare fasermatte und verfahren zu deren herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8404308A FR2561577B1 (fr) 1984-03-20 1984-03-20 Matelas fibreux moulable et son procede de fabrication
FR8404308 1984-03-20

Publications (2)

Publication Number Publication Date
EP0158156A1 EP0158156A1 (de) 1985-10-16
EP0158156B1 true EP0158156B1 (de) 1989-06-07

Family

ID=9302244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103014A Expired EP0158156B1 (de) 1984-03-20 1985-03-15 Formbare Fasermatte und Verfahren zu deren Herstellung

Country Status (9)

Country Link
US (1) US4680219A (de)
EP (1) EP0158156B1 (de)
JP (1) JPS615934A (de)
AT (1) ATE43870T1 (de)
BR (1) BR8501212A (de)
CA (1) CA1235293A (de)
DE (1) DE3570894D1 (de)
ES (1) ES8800862A1 (de)
FR (1) FR2561577B1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61132665A (ja) * 1984-11-29 1986-06-20 三菱油化バ−デイツシエ株式会社 成形可能な不織布の製造方法
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Also Published As

Publication number Publication date
FR2561577A1 (fr) 1985-09-27
EP0158156A1 (de) 1985-10-16
FR2561577B1 (fr) 1986-09-12
BR8501212A (pt) 1985-11-12
JPH0425863B2 (de) 1992-05-01
CA1235293A (en) 1988-04-19
US4680219A (en) 1987-07-14
DE3570894D1 (en) 1989-07-13
ATE43870T1 (de) 1989-06-15
JPS615934A (ja) 1986-01-11
ES541353A0 (es) 1987-12-01
ES8800862A1 (es) 1987-12-01

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