EP2480709B1 - Installation et procédé pour produire un non-tissé à base de fibres de verre et non-tissé de fibres ainsi produit - Google Patents

Installation et procédé pour produire un non-tissé à base de fibres de verre et non-tissé de fibres ainsi produit Download PDF

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Publication number
EP2480709B1
EP2480709B1 EP10781593.8A EP10781593A EP2480709B1 EP 2480709 B1 EP2480709 B1 EP 2480709B1 EP 10781593 A EP10781593 A EP 10781593A EP 2480709 B1 EP2480709 B1 EP 2480709B1
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EP
European Patent Office
Prior art keywords
unit
fibrous web
nonwoven fabric
fibres
fibers
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EP10781593.8A
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German (de)
English (en)
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EP2480709A1 (fr
Inventor
Lutz MÜLLER
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Matecs Spz Oo
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Matecs Spz Oo
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Priority to PL10781593T priority Critical patent/PL2480709T3/pl
Publication of EP2480709A1 publication Critical patent/EP2480709A1/fr
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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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H1/70—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
    • 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)
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts

Definitions

  • the invention relates to a system and a method for the production of nonwoven fabric, based on glass fibers, in particular as semi-finished or final product, in particular for use for insulation and / or insulation purposes.
  • Such a solution is for example in CH 358736 A1 described.
  • a jet of molten glass is discharged from a melting furnace and centrifuged by means of a drum rotating at 3000 revolutions per minute into fibers of 5 ft thick and several centimeters long.
  • the hot glass fibers thus formed are sprayed with a 4% aqueous solution of a melamine resin.
  • the glass fibers wetted with melamine resin form on a treadmill a nonwoven which passes an oven at such a rate that an air flow of 150 ° C for 105 seconds thereafter acts.
  • the publication DE 699 22 192 T2 relates to the production of artificial vitreous fiber (MMVF) fleeces with which the structure of the fleece is to be optimized.
  • the apparatus comprises two centrifugal spinners having at least one shredding rotor mounted for rotation about a substantially horizontal axis, means for entraining the fibers of each spinner in a stream of air around at least one shredding rotor of each spinner, the stream of air having a flow field and thereby provides a single cloud of air entrained fibers.
  • the fibers are collected as a web and then cross-laid on the web to form the web.
  • fiberglass mats known (eg.
  • Nonwovens are produced which are a mixture of natural fibers, for example cellulose fibers of cotton or loosened, already mechanically and / or chemically treated wood cellulose (fluff pulp), synthetic matrix fibers such as polyester, polypropylene or viscose and synthetic binder fibers such as so-called bicomponent Fibers and, for example, as absorbent so-called superabsorbent polymers in particle (SAP) or fiber form (SAF) comply and are used for example as a semi-finished for the production of diapers and sanitary napkins, absorbent pads for food industry or insulation material.
  • SAP superabsorbent polymers in particle
  • SAF fiber form
  • An important step in the production of such a web is to deposit the fiber mixture as evenly as possible on an air-permeable transport or conveyor belt.
  • This deposition is done by means of a forming head in which the fibers are mixed, wherein in a fiber processing space intermeshing needle rollers are arranged with parallel longitudinal axes, which can rotate about their respective longitudinal axis.
  • the supplied by an air flow fibers enter between the intermeshing needle rollers through into the interior and also leave the interior between the intermeshing needle rollers.
  • the needle rollers should contribute to the homogenization of the fiber distribution.
  • the fibers are deposited on a conveyor belt as a fiber bed, which have a substantially same orientation. Subsequently, the fiber bed can be pressed.
  • EP 0 384 551 B2 a carding machine for the production of randomly or longitudinally oriented nonwoven fabric is described, with at least one feed roller or the like., If necessary, a Vorwalze same in progress and at least three of the roughing rollers downstream, described in the same direction and preferably in opposite directions to the roughing roll working drums same diameter. Two working drums are in mutual engagement and their relative speed and / or mutual distance for controlling the proportion of the fiber material which can be stored back on the respective working drum on the one hand and the fiber material which can be transferred to the downstream working drum on the other hand is adjustable.
  • the working drums are covered with cover boxes and are all arranged successively around the circumference of at least one central roller running in the same direction, which in comparison to the working drums has a larger diameter having.
  • the relative speeds and / or the distance of the working drums on the one hand and the central roller (s) on the other hand are designed adjustable. This device has a complicated structural design.
  • a disadvantage of the aforementioned solutions is that over the width unevenly supplied fiber volume can lead to an irregular fiber fleece.
  • the object of the invention is to develop a system and a method for the production of nonwoven fabric based on glass fibers, which with a simple structural design, a manufacturing process is provided which ensures a uniform distribution of the fibers over the entire width of the nonwoven fabric, said a single layer homogeneous nonwoven fabric is provided which has excellent insulation and / or insulating properties.
  • the fiber opening device is preferably a carding unit for the resolution and oriented orientation of the fibers, wherein the carding unit outputs a batt with longitudinally oriented fibers,
  • the carding unit may be a conventional carding unit and is arranged in front of the first unit.
  • the second unit, in which the nonwoven fabric is formed, is the first unit, in which the reorientation of the fibers of the batt occurs in a random orientation, downstream.
  • the first unit is arranged above the second unit.
  • the carding unit has at least one feed roller for picking up the fibers and at least two spaced-apart work rolls and a discharge roller, wherein the feed roller, the work rolls and the discharge roll are arranged around a central roll. With the work rolls, the fibers are separated and aligned in a defined direction.
  • the diameter of the central roll is preferably greater than the diameter of the feed roller, the work rolls and the discharge roller. Furthermore, the diameter of the discharge roller is larger than the diameter of the feed roller and the Work rolls selected.
  • the delivery roller is also called a transfer roller. It has a pure transport function, ie the fibers should be transported and not compacted or processed in any other way. Since after the feeder begins the processing, ie, the fibers dissolve, singulate and orient, the fiber mass must be distributed over a larger area. That's why we work with increasing speeds.
  • each work roll is advantageously preceded by a roll of smaller diameter.
  • These rollers are also called turners, which have the task of removing the fiber excess on the work rolls and to press this back on the central roll.
  • the smaller diameter is chosen so that not all fibers from the work rolls, but only the excess is withdrawn.
  • the carding unit leaves a batt with oriented fibers at high speed.
  • this carding unit can be replaced by a fiber opening and distribution unit.
  • This fiber opening and distribution unit consists essentially of fiber opening aggregate and fiber distribution plant.
  • the fiber-opening unit is characterized by at least one feed roller and a central roller which is equipped with needles or hook-like elements.
  • Around the central roller at least one smaller roller is arranged, which in turn is equipped with needles or hook-like elements.
  • at least one rigid needle bar is arranged in front of the smaller roller, which is combed through by the central roller.
  • the fibers can be removed by air or mechanically via a delivery roller.
  • the fiber-opening unit can be followed by a single-stage or multi-stage fiber distribution system.
  • This fiber distribution system is characterized by the combination of a fiber storage with a subsequent uniform distribution of the fibers across the working width.
  • the uniform distribution of the fibers over the working width is mainly due to the interaction of a needle or hook-like stocked band with appropriately arranged tee and back wiping rollers, the fibers are also fed via a conveyor belt needle-like or hook-like equipped band.
  • the uniform monolayer batt is transported at a high speed via a feed belt.
  • the first unit there is a reorientation of the uniformly aligned fibers of the batt into a random orientation. This is the volume of the batt increased many times, so that many air pockets are present in the batt.
  • the first unit for reorienting the fibers of the batt in a random position at least two rollers provided with needles and / or hooks.
  • rollers provided with needles and / or hooks and a stream of air to reorient the fibers into a random orientation in the first unit.
  • the batt is transferred after the reorientation of the fibers into a random orientation from the first unit to the second unit, in which the formation of the homogeneous single-ply non-woven fabric is carried out with random fibers.
  • the second unit preferably builds the nonwoven fabric on a storage belt by means of negative pressure.
  • the thickness of the homogeneous nonwoven fabric can be adjusted by changing the advance speed of the storage belt. By reducing the advance speed of the deposit belt, an increase of up to 50 times the pile weight of the produced nonwoven fabric compared to the pile weight of the fiber web which is supplied to the first unit can be achieved.
  • the nonwoven fabric is dispensed from the second unit and can then be supplied to a solidification device.
  • a non-woven fabric mainly of glass fibers can be produced, which is then fed to a thermal consolidation.
  • other fibers or similar substances can be introduced, which then lead to a mixed fiber fleece.
  • the incorporation of these materials can be done with known powder, granular or Faserstreuem on or in the device according to the invention.
  • the nonwoven fabric can be provided with a surface seal on one or both sides. This is done in a coating device by means of water glass, plastic, adhesive or resin.
  • a homogenous single-layer fiber fleece with predominantly glass fibers in random orientation is produced, the fiber fleece consisting of fibers which are reoriented from an oriented or an unoriented layer into a random orientation with an increase in volume / density reduction.
  • the homogeneous fiber fleece contains many air pockets.
  • nonwoven fabric which has a very low basis weight or a low density / bulk density.
  • minimum densities of up to 15 kg / m 3 are possible if thermal bonding of the fiber fleece takes place and bulk densities of up to 50 kg / m 3 for needled nonwoven fabric, which was previously not feasible with conventional systems.
  • the previously possible density / bulk density in generic methods with thermal consolidation is a minimum of about 30 kg / m 3 and a minimum of about 80 kg / m 3 for needled products.
  • the homogeneous single-ply fiber fleece in particular consists of endless drawn fibers (preferably glass fibers) with a uniform filament diameter, it being possible to combine different fibers and also to use natural fibers in combination with synthetic fibers for producing the fiber fleece.
  • the homogeneous monolayer nonwoven fabric may optionally be infiltrated with a binder and formed into a 3-dimensional fiber mat by subsequent reshaping.
  • the nonwoven fabric is advantageously provided on one or both sides with a surface seal.
  • the surface seal is e.g. sprayed on and is curable and consists e.g. made of water glass, plastic, resin or glue.
  • the surface seal eliminates the need for an otherwise required aluminum lining (which must be recycled separately). In contrast, the surface seal is much easier and less expensive to produce.
  • a fiber opening device a resolution and separation of the glass fibers into a batt with an oriented or non-oriented orientation of the glass fibers takes place.
  • the batt is fed via a riser (transport means) of a first unit, in which a reorientation of the fibers of the batt into fibers, which take a random position, whereby the volume of the batt increases / the density of the batt is reduced.
  • the laying of a homogeneous single-layer fiber fleece with fibers in random orientation takes place from the fiber pile of the first unit.
  • the basis weight of the nonwoven fabric produced is a multiple of the basis weight of the batt.
  • the basis weight of the nonwoven fabric is adjustable by the speed of the storage belt. If the speed of the storage belt is reduced compared to the speed of the riser belt, a higher nonwoven fabric with a higher basis weight is produced generated. By reducing the advance speed of the storage belt, it is thus possible to achieve up to a 50-fold increase in the pile weight of the produced nonwoven fabric in comparison to the pile weight of the nonwoven fabric, which is supplied to the first unit, thereby producing a single-layered homogeneous fiber non-woven fabric.
  • the nonwoven fabric which is based on glass fibers as a semi-finished or final product, especially for insulation and / or insulating uses, is a homogeneous single-ply fiber fleece glass fibers, the glass fibers from an oriented or non-oriented layer (in the batt) in a Weir are reoriented by increasing the volume / decreasing the density (of the nonwoven fabric).
  • the nonwoven fabric has a minimum density of up to 15 kg / m 3 , when thermal bonding of the nonwoven fabric takes place. If the fiber fleece was needled, the minimum density is up to 50kg / m 3 . Furthermore, the nonwoven fabric has a uniform filament diameter of the glass fibers (preferably of the same length) and consists of endless drawn glass fiber which has been separated into fibers of preferably equal length, which then form as staple fibers the starting base for the production of the nonwoven fabric.
  • nonwoven fabric on one or both sides with a surface seal which is in particular curable and preferably consists of waterglass, plastic, resin or adhesive.
  • binder, granules or other additional fibers can be infiltrated individually or in their combinations in the nonwoven fabric.
  • the binder makes it possible to produce shaped bodies from the nonwoven fabric by three-dimensional shaping (also in the layer / sandwich construction with other materials).
  • the nonwoven fabric can be used after appropriate cutting as insulating and / or insulating mat and / or as a reinforcing or stiffening application and as already described above three-dimensionally formed.
  • the method and apparatus provide a fibrous web having a very large volume.
  • Made from insulating mats or insulation mats have excellent insulation or insulation properties due to the many air pockets.
  • the fat The insulating mats can be significantly reduced.
  • a conventional insulating mat with aluminum lamination with a thickness of 20mm and a density of 32kg / m 3 replaced.
  • the insulating mats are used for example in domestic or kitchen appliances or in vehicles for insulation and / or insulation purposes.
  • moldings therefrom which serve, for example, as support and / or stiffening or reinforcing elements and are used in particular in the vehicle sector.
  • the thinner insulating mats it is possible, e.g. in cooking stoves to increase the cooking space.
  • the insulating mats from the novel nonwoven fabric which, like the previous insulating mats have a thickness of 20mm, the energy consumption can be significantly reduced.
  • the fibers used are in particular drawn glass fibers with a uniform filament diameter of 0.009 to 0.025 mm and a length of up to 200 mm. However, it is also possible to use or to incorporate other organic or inorganic fibers.
  • the system consists of a fiber opening device in the form of a carding unit 1, which processed and already partially opened fibers are supplied.
  • the starting base thereby form bundle-like continuous glass fibers in the form of staple fibers with a length of up to 200 mm with a diameter of 0.009 to 0.025 mm, which were produced from drawn continuous fibers.
  • the carding unit 1 In the carding unit 1, the singulation into individual fibers and their oriented orientation takes place.
  • the carding unit 1 has for this purpose a pickup roller 1.1 for picking up the fibers, two spaced-apart work rolls 1.2, each associated with a roller 1.3 (Wender), and a discharge roller 1.4.
  • the rollers 1.1 to 1.4 are arranged around a central roller 1.5 around.
  • the single-layer fibrous web F produced therefrom from the glass fibers passes (see FIG. 3 ) is conveyed at a high speed therethrough to the first unit 3, in which the substantially unidirectional fibers of the batt F are reoriented into a random orientation.
  • the volume of the batt F is substantially increased and can be mixed with other materials.
  • the fibrous web F can be infiltrated with a binder, granules G (for example of thermoplastic material) or other fibers from a scattering unit 2.1, which, for example, above the riser 2 (s. FIG. 3 ) or the scattering unit 2.1 is arranged on or in the unit 3 (not shown).
  • a scattering unit 2.1 which, for example, above the riser 2 (s. FIG. 3 ) or the scattering unit 2.1 is arranged on or in the unit 3 (not shown).
  • the second unit 4 into which the batt F (see FIG. 3 ) now passes and in which of the fibers located in a heterogeneous monolayer fiber fleece FL is laid / formed.
  • the first and the second unit 3, 4 are indicated only schematically.
  • the thickness and weight of the nonwoven fabric FL can be varied by different speed settings. It should be emphasized that up to 50-fold increase of the pile weight per unit area can be achieved without the usual crossing or crossing.
  • the non-woven fabric FL is formed on a storage belt 7, which is transported by a conveyor belt 8 and e.g. is wound on a roll (not shown).
  • the homogeneous single-layer fiber fleece FL thus produced can then be coated by means of a coating device 5 for surface sealing with water glass, plastic, adhesive or resin.
  • the non-woven fabric FL is solidified by means of solidification 6, for example by needling or thermally.
  • the sealing of the nonwoven fabric FL can also be done only after solidification.
  • nonwoven FL mats are made or cut, which can be used in a variety of ways for thermal insulation and / or sound insulation.
  • the non-woven fabric FL or the mats produced therefrom have a soft, silk-like surface that no longer resembles glass fibers. Furthermore, in particular by the sealing and the needling no more glass fibers are released undesirable.
  • the fiber opening device is formed by a fiber opening and distribution unit 10 (which replaces the carding unit 1), whereby a more favorable singulation and opening of the fibers is achieved while maintaining a position not oriented here.
  • the fiber opening and distribution unit 10 essentially consists of one or more fiber opening aggregates 11 (here two) and one or more fiber singulation plants 12 (here three) and replaces the entire conventional fiber opening path via pre-opening and carding (carding unit 1 and devices arranged in front of it for partial singulation and carding) Opening the fibers).
  • pre-opening and carding carding unit 1 and devices arranged in front of it for partial singulation and carding
  • Each fiber-opening unit 11 here has two feed rollers 11.1 and a central roller 11.2, which is equipped with needles or hook-like elements (not labeled).
  • a central roller 11.2 Around each central roller 11.2 around two smaller rollers 11.3 are arranged, which in turn are equipped with needles or hook-like elements (not labeled).
  • a rigid needle bar 11.4 is arranged between the feed rollers 11.1 and the following smaller roller 11.3, which is combed by the central roller 11.2.
  • the fibers may be drawn off by air or mechanically via a delivery roller (not shown).
  • the two fiber-opening units 11 are here downstream of the three fiber distribution systems 12, which are arranged directly behind one another.
  • the fiber distribution systems each have a fiber storage 12.1 is provided with a subsequent uniform distribution of fibers over the working width by cooperation of a needle or hook-like equipped band 12.2 with appropriately arranged tee and remindstreifwalzen 12.3, the fibers also on a conveyor belt 12.4 the needle or hook similar equipped band 12.2 are supplied.
  • the single-layer fiber web F which is formed from the separated glass fibers, also passes via a riser 2 into the first unit 3, in which the fibers of the fiber web F are reoriented into a random orientation.
  • the second unit 4 into which the batt F (see FIG. 3 ) now comes and in which the formation / laying of the homogeneous single-layer nonwoven fabric FL with takes place in fibers present.
  • the second unit 4 can also build up the nonwoven fabric by means of negative pressure.
  • the fact that already consists of fiberglass fibers F has a high volume, the volume of the laid with the second unit 4 batt FL is increased from the fibers in dislocated even more, whereby the insulating properties even more than when using a Improve clutter unit.
  • binder / granules e.g., thermoplastic / phenolic material
  • other fibers e.g., polyester / phenolic material
  • thermoplastic / phenolic binder is preferably also on the riser 2 and / or in the first unit 3 by means of a scattering unit, not shown.
  • the admixture of other fibers can be done at the beginning of the processing line and / or in the first unit.
  • other fibers and / or binders in a fiber opening unit 11 and / or a Faseraposzelungsstrom 12 to mix the glass fibers, preferably by sprinkling by means of one or more scattering units, not shown.
  • a fiber opening device in the form of a fiber opening and distribution unit acc. FIG. 4
  • a fiber opening device in the form of a carding unit 1 (FIG. Fig. 1 to 3 ) are combined before the unit 3 with each other.
  • at least one fiber opening and distribution unit and then at least one carding unit can be provided first.
  • the mats produced from the nonwoven fabric are largely elastic and thus return to their original thickness after being compressed.
  • a fiber mat By selectively introducing binder, granules or other fibers, a fiber mat can be produced after appropriate thermal or chemical solidification, which can take a 3-dimensional shape by subsequent forming.
  • the essential field of application are preferably kitchen appliances for private and / or commercial needs, in which a good thermal insulation is required, eg Cookers, microwaves, hot air ovens, washing machines, dryers, etc.
  • the glass fiber mats in vehicles or in the construction industry.
  • simple single-layer glass fiber mats which may be coated on one or both sides (eg with water glass) and which are used, for example, in kitchen ranges or other aforementioned fields of application.
  • the glass fiber mats made from the nonwoven fabric can form the starting base as a semi-finished product for the production of moldings with a lamination or other layer structure.
  • the glass fiber mats are infiltrated with a binder and in particular compressed together with the other materials to form a molding.
  • the non-woven fabric can be used as a continuous product, e.g. Rolls are delivered to a consumer who then cuts and processes them.
  • a fiber fleece FL made of glass fibers which has only one layer and is homogeneous and thereby has a greater thickness than the fibrous web F, which forms the starting base.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Claims (11)

  1. Installation pour la fabrication de non-tissé de fibres à base de fibres de verre pour des usages d'isolation phonique ou thermique ou pour des éléments de renfort ou raidisseurs, composée de :
    - au moins un dispositif de séparation des fibres pour la séparation et la disposition orientée ou non orientée des fibres de verre et la formation d'une nappe de fibres (F), une première unité (3) pour la réorientation des fibres orientées ou non orientées de la nappe de fibres (F) en fibres prenant une disposition chaotique, le volume de la nappe de fibres (F) étant augmenté et la densité de la nappe de fibres (F) diminuée de sorte que la nappe de fibres contient de nombreuses inclusions d'air, avec une bande de transport inclinée (2) qui transporte la nappe de fibres (F) de l'installation de séparation des fibres vers la première unité (3) à une certaine vitesse,
    - une deuxième unité (4) sur laquelle un non-tissé de fibres homogène en une couche (FL) est formé sur une bande de dépose (7) avec des fibres en disposition chaotique provenant de la nappe de fibres (F) de la première unité (3), dont le poids par unité de surface représente un multiple du poids par unité de surface de la nappe de fibres (F),
    - dans laquelle la vitesse d'avancement de la bande de dépose (7) peut être réduite par rapport à la vitesse de la bande de transport inclinée (2) afin d'augmenter le poids par unité de surface du non-tissé de fibres homogène (FL), de telle manière
    - que la deuxième unité (4) constitue le non-tissé de fibres homogène en une couche (FL) sur la bande de dépose (7) à partir des fibres en disposition chaotique en augmentant jusqu'à 50 fois le poids de la nappe au moyen d'une dépression.
  2. Installation selon la revendication 1, caractérisée en ce que le dispositif de séparation des fibres est formé par une unité de cardage (1) et/ou au moins une unité de séparation et de répartition des fibres (10).
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que le dispositif de séparation des fibres (1, 10) est disposé avant la première unité (3) et en ce que la deuxième unité (4) est montée derrière la première unité (3).
  4. Installation selon la revendication 1 ou 2, caractérisée en ce que la première unité (3) et la deuxième unité (4) sont disposées l'une au-dessus de l'autre.
  5. Installation selon l'une des revendications 1 à 4, caractérisée en ce qu'au moins un groupe de dispersion (2.1) est disposé au-dessus de la bande de transport inclinée (2) et/ou au-dessus de/dans la première unité (3) pour introduire des liants, des granulés (G) ou d'autres fibres sur/dans la nappe de fibres (F).
  6. Installation selon l'une des revendications 1 à 5, caractérisée en ce que la première unité (3) présente pour réorienter les fibres de la nappe de fibres (F) dans une disposition chaotique au moins deux rouleaux munis de picots et/ou de crochets.
  7. Installation selon la revendication 6, caractérisée en ce que dans la première unité (3), les rouleaux et un flux d'air sont combinés pour réorienter les fibres dans une disposition chaotique.
  8. Installation selon l'une des revendications 1 à 7, caractérisée en ce que la deuxième unité (4) est suivie d'un dispositif pour le compactage (5) (compactage thermique ou compactage/aiguilletage mécanique) du non-tissé de fibres (FL)
  9. Installations selon l'une des revendications 1 à 8, caractérisée en ce qu'elle comporte un dispositif d'enduction (6) pour rendre étanche la surface du non-tissé de fibres (FL) sur une face ou les deux au moyens de verre soluble ou de matière plastique ou de colle ou de résine.
  10. Procédé pour fabriquer du non-tissé de fibres à base de fibres de verre pour des usages d'isolation phonique ou thermique ou pour des éléments de renfort ou raidisseurs,
    - dans lequel de fibres de verre qui se présentent en tas sont séparées et isolées dans un dispositif de séparation des fibres pour former une nappe de fibres (F) avec une disposition orientée ou non orientée des fibres de verre, la nappe de fibres (F) est amenée par une bande de transport inclinée (2) à une certaine vitesse vers une première unité (3) dans laquelle les fibres de la nappe de fibres (F) sont réorientées en fibres en disposition chaotique, le volume de la nappe de fibres (F) étant augmenté et la densité de la nappe de fibres (F) réduite, de sorte que la nappe de fibres (F) contient de nombreuses inclusions d'air ;
    - et un non-tissé de fibres homogène en une couche (FL) est ensuite formé dans une deuxième unité (4) sur une bande de dépose (7) avec des fibres en disposition chaotique provenant de la nappe de fibres (F) de la première unité (3), dont le poids par unité de surface représente un multiple du poids par unité de surface de la nappe de fibres (F), la vitesse d'avancement de la bande de dépose (7) étant réduite par rapport à la vitesse du moyen de transport/de la bande de transport inclinée (2) afin d'augmenter le poids par unité de surface du non-tissé de fibres homogène (FL), de telle manière que
    - sous l'effet de la réduction de la vitesse d'avancement de la bande de dépose (7), le poids de la nappe du non-tissé de fibres (FL) fabriqué est augmenté jusqu'à 50 fois par rapport au poids de la nappe de fibres (F) et un non-tissé de fibres homogène en une couche (FL) est formé sur la bande de dépose (7) au moyen d'une dépression.
  11. Procédé selon la revendication 10, caractérisée en ce que des liants, des granulés ou d'autres fibres supplémentaires sont infiltrés, séparément ou combinés, dans la nappe de fibres (F).
EP10781593.8A 2009-09-24 2010-09-23 Installation et procédé pour produire un non-tissé à base de fibres de verre et non-tissé de fibres ainsi produit Active EP2480709B1 (fr)

Priority Applications (1)

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PL10781593T PL2480709T3 (pl) 2009-09-24 2010-09-23 Linia produkcyjna i sposób produkcji włókniny na bazie włókien szklanych oraz wyprodukowana w ten sposób włóknina

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DE202009012819U DE202009012819U1 (de) 2009-09-24 2009-09-24 Anlage zur Herstellung von Faservliesmatten und damit hergestelltes Faservlies
PCT/DE2010/075094 WO2011035782A1 (fr) 2009-09-24 2010-09-23 Installation et procédé pour produire un non-tissé à base de fibres de verre et non-tissé de fibres ainsi produit

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EP2480709B1 true EP2480709B1 (fr) 2015-09-30

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DE (2) DE202009012819U1 (fr)
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DE102012008931B4 (de) * 2012-05-04 2014-08-21 Trützschler GmbH & Co Kommanditgesellschaft Verfahren und Vorrichtung zur Einstellung der Faserorientierung an Krempelanlagen
DE202014100908U1 (de) 2014-02-27 2015-05-28 Autefa Solutions Germany Gmbh Kardiereinrichtung
CN107287767A (zh) * 2017-06-15 2017-10-24 唐新雄 改进型吸液无纺布及其制备方法
DE102020001262A1 (de) 2020-02-27 2021-09-02 Hubert Hergeth Verfahren zur Herstellung eines Faservlieses mit unterschiedlicher Faserorientierung
CN114261113B (zh) * 2021-12-28 2023-12-05 北新建材(天津)有限公司 一种净醛玻毡板生产装置

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Also Published As

Publication number Publication date
PL2480709T3 (pl) 2016-03-31
WO2011035782A1 (fr) 2011-03-31
DE102010037731A1 (de) 2011-03-31
DE202009012819U1 (de) 2011-02-10
EP2480709A1 (fr) 2012-08-01

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