EP2480709B1 - System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same - Google Patents
System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same Download PDFInfo
- 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
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- fibrous web
- nonwoven fabric
- fibres
- fibers
- 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.)
- Active
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims description 73
- 239000003365 glass fiber Substances 0.000 title claims description 49
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000000835 fiber Substances 0.000 claims description 159
- 238000009960 carding Methods 0.000 claims description 26
- 238000009826 distribution Methods 0.000 claims description 20
- 239000002356 single layer Substances 0.000 claims description 17
- 230000001965 increasing effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000008187 granular material Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims 5
- 239000007767 bonding agent Substances 0.000 claims 2
- 239000006185 dispersion Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 description 18
- 238000009413 insulation Methods 0.000 description 14
- 238000003860 storage Methods 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 7
- 238000003475 lamination Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000009827 uniform distribution Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229920006240 drawn fiber Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
Description
Die Erfindung betrifft eine Anlage und ein Verfahren zur Herstellung von Faservlies, auf der Basis von Glasfasern, insbesondere als Halbfabrikat oder Finalprodukt, insbesondere zum Einsatz für Dämm- und/oder Isolierzwecke.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.
Es sind zahlreiche Lösungen zur Herstellung eines Glasfaservlieses bekannt. Es ist ebenfalls bekannt, für Dämm- oder Isoliermaterial Glasfasermatten oder Vliese zu verwenden.Numerous solutions for the production of a glass fiber fleece are known. It is also known to use glass fiber mats or nonwovens for insulating or insulating material.
Eine derartige Lösung wird beispielsweise in
Eine ähnliche Lösung zum Herstellen von Glasfasermatten einheitlicher Beschaffenheit wird in
Die Druckschrift
Nach
In
Nachteilig bei den vorgenannten Lösungen ist, dass über die Breite ungleichmäßig zugeführtes Faservolumen zu einem unregelmäßigen Faservlies führen kann.A disadvantage of the aforementioned solutions is that over the width unevenly supplied fiber volume can lead to an irregular fiber fleece.
Aus den Druckschriften
Es ist weiterhin aus der Druckschrift
Die Aufgabe der Erfindung besteht darin, eine Anlage und ein Verfahren zur Herstellung von Faservlies auf der Basis von Glasfasern zu entwickeln, womit bei einem einfachen konstruktiven Aufbau ein Herstellungsverfahren geschaffen wird, welches eine gleichmäßige Verteilung der Fasern über die gesamte Breite des Faservlieses gewährleistet, wobei ein einlagiges homogenes Faservlies geschaffen wird, welches hervorragende Dämm- und/oder Isoliereigenschaften aufweist.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.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des 1. und 10. Patentanspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.This object is achieved with the features of the 1st and 10th claim. Advantageous embodiments emerge from the subclaims.
Die erfindungsgemäße Anlage zur Herstellung von Faservliesmatten auf der Basis von Glasfasern insbesondere zum Einsatz für Dämm- und/oder Isolierzwecke besteht dabei erfindungsgemäß aus
- einer Faseröffnungseinrichtung zur Auflösung und zur orientierten oder nicht orientierten Ausrichtung der Glasfasern und Bildung eines Faserflors,
- einer ersten Einheit zur Umorientierung der orientierten oder nicht orientierten Fasern des Faserflors in Fasern, die eine Wirrlage einnehmen, wobei das Volumen des Faserflors erhöht/die Dichte des Faserflors verringert wird,
- einem Steigband (Transportmittel) welches den Faserflor aus der Faseröffnungseinrichtung zur ersten Einheit fördert,
- einer zweiten Einheit, auf welcher auf einem Ablageband ein homogenes einlagiges Faservliese mit Fasern in Wirrlage aus dem Faserflor der ersten Einheit gebildet wird, dessen Flächengewicht ein Vielfaches des Flächengewichtes des Faserflors beträgt.
- a fiber opening device for the dissolution and oriented or non-oriented orientation of the glass fibers and formation of a batt,
- a first unit for reorienting the oriented or unoriented fibers of the batt into fibers occupying a random orientation, increasing the volume of the batt / decreasing the density of the batt;
- a riser (transport means) which conveys the batt from the fiber opening device to the first unit,
- a second unit, on which a homogenous single-ply fiber fleece with fibers in random orientation is formed on a storage belt from the batt of the first unit, whose basis weight is a multiple of the basis weight of the batt.
Die Faseröffnungseinrichtung ist dabei bevorzugt eine Krempeleinheit zur Auflösung und zur orientierten Ausrichtung der Fasern, wobei aus der Krempeleinheit ein Faserflor mit längsorientierten Fasern ausgegeben wird,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,
Wahlweise kann die Krempeleinheit durch ein neuartiges Aggregat der Faseröffnung ersetzt werden. Dieses Aggregat der Faseröffnung ermöglicht die Ausgabe eines Faserflors mit nicht orientierten Fasern. Je nach Öffnungsgrad der Fasern kann diese Einheit auch mehrstufig ausgeführt werden, so dass zum Beispiel
- eine erste Einheit zur Umorientierung der ausgerichteten Fasern des Faserflors in Fasern, die eine Wirrlage einnehmen, wobei das Volumen des Faserflors erhöht/die Dichte des Faserflors verringert wird, sowie
- eine zweite Einheit zur Bildung eines homogenen einlagigen Faservlieses mit Fasern in Wirrlage aus dem Faserflor der ersten Einheit
- a first unit for reorienting the oriented fibers of the batt into fibers occupying a random orientation, increasing the volume of the batt / decreasing the density of the batt;
- a second unit for forming a homogeneous monolayer nonwoven fabric with fibers in random orientation from the batt of the first unit
Die Krempeleinheit kann eine herkömmliche Krempeleinheit sein und ist vor der ersten Einheit angeordnet. Die zweite Einheit, in welcher das Faservlies gebildet wird, ist der ersten Einheit, in welcher die Umorientierung der Fasern des Faserflors in eine Wirrlage erfolgt, nachgeschaltet. Bevorzugt ist die erste Einheit über der zweiten Einheit angeordnet.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. Preferably, the first unit is arranged above the second unit.
Die Krempeleinheit weist mindestens eine Einzugswalze zum Aufnehmen der Fasern und mindestens zwei voneinander beabstandete Arbeitswalzen sowie eine Abgabewalze auf, wobei die Einzugswalze, die Arbeitswalzen und die Abgabewalze um eine Zentralwalze herum angeordnet sind. Mit den Arbeitswalzen werden die Fasern vereinzelt und in eine definierte Richtung ausgerichtet. Der Durchmesser der Zentralwalze ist bevorzugt größer als der Durchmesser der Einzugswalze, der Arbeitswalzen sowie der Abgabewalze. Weiterhin wird der Durchmesser der Abgabewalze größer als der Durchmesser der Einzugswalze und der Arbeitswalzen gewählt. Die Abgabewalze wird auch Übertragungswalze genannt. Sie hat eine reine Transportfunktion, d.h. die Fasern sollen transportiert und nicht verdichtet oder in anderer Weise bearbeitet werden. Da nach dem Einzug die Bearbeitung, d.h. das Fasern auflösen, vereinzeln und orientieren beginnt, muss die Fasermasse auf eine größere Fläche verteilt werden. Deshalb wird mit steigenden Geschwindigkeiten gearbeitet.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.
Um ein gleichmäßiges Vereinzeln und Ausrichten der Fasern zu gewährleisten, ist vorteilhafter Weise jeder Arbeitswalze eine Walze mit kleinerem Durchmesser vorgeschaltet. Diese Walzen werden auch Wender genannt, die die Aufgabe haben, den Faserüberschuss auf den Arbeitswalzen wieder abzunehmen und diesen zurück auf die Zentralwalze zu drücken. Der kleinere Durchmesser wird deswegen gewählt, damit nicht alle Fasern von den Arbeitswalzen, sondern nur der Überschuss zurückgenommen wird. Die Krempeleinheit verlässt ein Faserflor mit orientierten Fasern unter hoher Geschwindigkeit.In order to ensure a uniform separation and alignment of the fibers, 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.
Wahlweise kann diese Krempeleinheit durch ein Faseröffnungs- und Verteilungseinheit ersetzt werden. Diese Faseröffnungs- und Verteilungseinheit besteht im Wesentlichen aus Faseröffnungsaggregat und Faserverteilungsanlage. Das Faseröffnungsaggregat ist gekennzeichnet durch mindestens eine Einzugeswalze und eine Zentralwalze die mit Nadeln oder hakenähnlichen Elementen bestückt ist. Um die Zentralwalze herum ist mindestens eine kleinere Walze angeordnet, die wiederum mit Nadeln oder hakenähnlichen Elementen bestückt ist. Vorteilhafterweise ist vor der kleineren Walze mindestens eine starre Nadelleiste angeordnet, die von der Zentralwalze durchkämmt wird. Die Fasern können per Luft oder mechanisch über eine Abgabewalze abgezogen werden. Je nach gewünschtem Öffnungsgrad der Fasern können mehrere Aggregate hintereinander betrieben werden. Vorteilhafterweise kann dem Faseröffnungsaggregat eine ein- oder mehrstufige Faserverteilungsanlage nachgeschaltet werden. Diese Faserverteilungsanlage ist gekennzeichnet durch die Verknüpfung eines Faserspeichers mit einer nachfolgenden gleichmäßigen Verteilung der Fasern über die Arbeitsbreite. Die gleichmäßige Verteilung der Fasern über die Arbeitsbreite erfolgt hauptsächlich durch das Zusammenspiel von einem nadel- oder hakenähnlich bestückten Band mit entsprechend angeordneten Abschlag- und Rückstreifwalzen, wobei die Fasern ebenfalls über ein Transportband dem nadel- oder hakenähnlich bestückten Band zugeführt werden.Optionally, 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. Advantageously, 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. Depending on the desired degree of opening of the fibers, several units can be operated in succession. Advantageously, 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.
Von der Krempeleinheit oder der beschriebenen Faseröffnungs- und Verteilungseinheit zur ersten Einheit wird der gleichmäßige einschichtige Faserflor mit einer hohen Geschwindigkeit über ein Zuführband transportiert. In der ersten Einheit erfolgt eine Umorientierung der gleichmäßig ausgerichteten Fasern des Faserflors in eine Wirrlage. Dabei wird das Volumen des Faserflors um ein Vielfaches erhöht, so dass viele Lufteinschlüsse im Faserflor vorhanden sind.From the carding unit or the described fiber opening and distribution unit to the first unit, the uniform monolayer batt is transported at a high speed via a feed belt. In 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.
Dazu weist die erste Einheit zur Umorientierung der Fasern des Faserflors in eine Wirrlage wenigstens zwei mit Nadeln und/oder Haken versehene Walzen auf.For this purpose, the first unit for reorienting the fibers of the batt in a random position at least two rollers provided with needles and / or hooks.
Es ist auch möglich, die mit Nadeln und/oder Haken versehenen Walzen und einen Luftstrom zur Umorientierung der Fasern in eine Wirrlage in der ersten Einheit zu kombinieren.It is also possible to combine the rollers provided with needles and / or hooks and a stream of air to reorient the fibers into a random orientation in the first unit.
Der Faserflor wird nach der Umorientierung der Fasern in eine Wirrlage aus der ersten Einheit in die zweite Einheit überführt, in welcher die Bildung des homogenen einlagigen Faservlieses mit in Wirrlage befindlichen Fasern erfolgt. Dazu baut die zweite Einheit das Faservlies auf einem Ablageband bevorzugt mittels Unterdruck auf. Die Dicke des homogenen Faservlieses kann durch Änderung der Vorlaufgeschwindigkeit des Ablagebandes eingestellt werden. Durch Verringerung der Vorlaufgeschwindigkeit des Ablagebandes kann eine bis zu 50 fache Erhöhung des Florgewichtes des hergestellten Faservlieses im Vergleich zum Florgewicht des Faserflors, welches der ersten Einheit zugeführt wird, erzielt werden.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. For this purpose, 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.
Aus der zweiten Einheit wird das Faservlies ausgegeben und kann anschließend einer Einrichtung zur Verfestigung zugeführt werden.The nonwoven fabric is dispensed from the second unit and can then be supplied to a solidification device.
Mit einer zusätzlichen Anordnung eines Aggregates zur Bindemitteleinbringung auf Basis von Pulver, Granulaten und ähnlichen in oder auf der erfindungsgemäßen Einrichtung, wahlweise erste Einheit oder zweite Einheit kann ein Faservlies aus überwiegend Glasfasern hergestellt werden, das anschließend einer thermischen Verfestigung zugeführt wird. Wahlweise können auch andere Fasern oder ähnliche Stoffe eingebracht werden, die dann zu einem Mischfaservlies führen. Die Einbringung dieser Materialien kann mit bekannten Pulver-, Granulat- oder Faserstreuem auf oder in der erfindungsgemäßen Einrichtung erfolgen.With an additional arrangement of an aggregate for binder introduction based on powder, granules and similar in or on the device according to the invention, optionally first unit or second unit, a non-woven fabric mainly of glass fibers can be produced, which is then fed to a thermal consolidation. Alternatively, 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.
Mit oder ohne Verfestigung kann das Faservlies auf einer oder beiden Seiten mit einer Oberflächenversiegelung versehen werden. Dies erfolgt in einer Beschichtungseinrichtung mittels Wasserglas, Kunststoff, Kleber oder Harz.With or without consolidation, 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.
Mit der erfindungsgemäßen Einrichtung wird ein homogenes einlagiges Faservlies mit überwiegend Glasfasern in Wirrlage erzeugt, wobei das Faservlies aus Fasern besteht, die aus einer orientierten oder einer nicht orientierten Lage in eine Wirrlage unter Erhöhung des Volumens/ Verringerung der Dichte umorientiert sind. Das homogene Faservlies enthält dabei viele Lufteinschlüsse.With the device according to the invention, 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.
Es ist möglich, ein Faservlies herzustellen, welches ein sehr geringes Flächengewicht bzw. eine geringe Dichte/Rohdichte aufweist. Dabei sind minimale Rohdichten bis 15kg/m3 möglich, wenn eine thermische Verfestigung des Faservlieses erfolgt und Rohdichten bis 50kg/m3 bei vernadeltem Faservlies, was mit herkömmlichen Anlagen bisher nicht realisierbar war. Die bisher mögliche Dichte/Rohdichte bei gattungsgemäßen Verfahren mit thermischer Verfestigung beträgt minimal ca. 30 kg/m3 und bei vernadelten Produkten minimal ca. 80 kg/m3.It is possible to produce a nonwoven fabric which has a very low basis weight or a low density / bulk density. In this case, 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.
Das homogene einlagige Faservlies besteht insbesondere aus endlos gezogenen Fasern (vorzugsweise Glasfasern) mit einem einheitlichen Filament - Durchmesser, wobei unterschiedliche Fasern kombiniert werden können und auch Naturfasern in Kombination mit synthetischen Fasern zur Herstellung des Faservlieses Verwendung finden können.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.
Zusätzlich kann das homogene einlagige Faservlies wahlweise mit einem Bindemittel infiltriert werden und durch eine spätere Umformung zu einer 3 dimensionalen Fasermatte geformt werden.In addition, the homogeneous monolayer nonwoven fabric may optionally be infiltrated with a binder and formed into a 3-dimensional fiber mat by subsequent reshaping.
Weiterhin ist das Faservlies vorteilhafter Weise ein- oder beidseitig mit einer Oberflächenversiegelung versehen. Die Oberflächenversiegelung wird z.B. aufgesprüht und ist aushärtbar und besteht z.B. aus Wasserglas, Kunststoff, Harz oder Kleber. Durch die Oberflächenversiegelung kann eine sonst erforderliche Aluminiumkaschierung (die separat recycelt werden muss) entfallen. Die Oberflächenversiegelung ist demgegenüber wesentlich einfacher und kostengünstiger herstellbar.Furthermore, 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.
Verfahrensgemäß erfolgt die Herstellung des Faservlieses auf der Basis von Glasfasern, insbesondere für Dämm- und/oder Isolierzwecke, aus Glasfasern, die in Form von Stapelfasern vorliegen. In einer Faseröffnungseinrichtung erfolgt eine Auflösung und Vereinzelung der Glasfasern zu einem Faserflor mit einer orientierten oder nicht orientierten Ausrichtung der Glasfasern. Anschließend wird der Faserflor über ein Steigband (Transportmittel) einer ersten Einheit zugeführt, in welcher eine Umorientierung der Fasern des Faserflors in Fasern, die eine Wirrlage einnehmen erfolgt, wobei das Volumen des Faserflors erhöht/die Dichte des Faserflors verringert wird. Anschließend erfolgt in einer zweiten Einheit auf einem Ablageband das Legen eines homogenen einlagigen Faservlieses mit Fasern in Wirrlage aus dem Faserflor der ersten Einheit. Dabei beträgt das Flächengewicht des erzeugten Faservlieses ein Vielfaches des Flächengewichtes des Faserflors.According to the method, the production of the non-woven fabric on the basis of glass fibers, in particular for insulation and / or insulating purposes, made of glass fibers, which are in the form of staple fibers. In 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. Subsequently, 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. Subsequently, in a second unit on a storage belt, the laying of a homogeneous single-layer fiber fleece with fibers in random orientation takes place from the fiber pile of the first unit. In this case, the basis weight of the nonwoven fabric produced is a multiple of the basis weight of the batt.
Vorteilhafter Weise ist das Flächengewichte des Faservlieses durch die Geschwindigkeit des Ablagebandes einstellbar. Wird die Geschwindigkeit des Ablagebandes im Vergleich zur Geschwindigkeit des Steigbandes verringert, wird ein höheres Faservlies mit einem höheren Flächengewicht erzeugt. Durch Verringerung der Vorlaufgeschwindigkeit des Ablagebandes ist es damit möglich, eine bis zu 50 fache Erhöhung des Florgewichtes des hergestellten Faservlieses im Vergleich zum Florgewicht des Faserflors, welches der ersten Einheit zugeführt wird, zu erzielen und dabei ein einlagiges homogenes Faservlies aus Glasfasern herzustellen.Advantageously, 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.
Es ist weiterhin möglich, in das Faserflor Bindemittel, Granulat oder andere zusätzliche Fasern einzeln oder in Kombinationen zu infiltrieren. Dies erfolgt mit einer Zuführanordnung, die über dem Steigband und/oder über oder in der ersten Einheit angeordnet ist und aus welcher die insbesondere rieselfähigen Substanzen auf das Faserflor gestreut werden. In der ersten Einheit werden die Substanzen dann in das Faserflor eingearbeitet/infiltriert, so dass das aus der zweiten Einheit gelangende Faservlies damit gleichmäßig durchsetzt ist.It is also possible to infiltrate into the batt binder, granules or other additional fibers individually or in combinations. This is done with a feed arrangement, which is arranged above the riser belt and / or above or in the first unit and from which the particular free-flowing substances are scattered onto the fiber web. In the first unit, the substances are then incorporated / infiltrated into the batt, so that the fiber web reaching out of the second unit is thus uniformly interspersed.
Das Faservlies, welches auf der Basis von Glasfasern als Halbfabrikat oder Finalprodukt, insbesondere für Dämm- und/oder Isolierzwecke, Verwendung findet, ist ein homogenes einlagiges Faservlies aus Glasfasern, wobei die Glasfasern aus einer orientierten oder nicht orientierten Lage (im Faserflor) in eine Wirrlage bei Erhöhung des Volumens/ Verringerung der Dichte (des Faservlieses) umorientiert sind.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).
Das Faservlies weist eine minimale Rohdichte bis 15kg/m3 auf, wenn eine thermische Verfestigung des Faservlieses erfolgt. Wurde das Faservlies vernadelt, beträgt die minimale Rohdichte bis 50kg/m3. Weiterhin weist das Faservlies einen einheitlichen Filament - Durchmesser der Glasfasern (bevorzugt bei einer gleichen Länge).auf und besteht aus endlos gezogener Glasfaser, die in Fasern bevorzugt gleicher Länge getrennt wurde, die dann als Stapelfasern die Ausgangsbasis für die Herstellung des Faservlieses bilden.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.
Es ist möglich, das Faservlies ein- oder beidseitig mit einer Oberflächenversiegelung zu versehen, die insbesondere aushärtbar ist und bevorzugt aus Wasserglas, Kunststoff, Harz oder Kleber besteht. Weiterhin kann in das Faservlies Bindemittel, Granulat oder andere zusätzlichen Fasern einzeln oder in deren Kombinationen infiltriert sein. Durch das Bindemittel besteht die Möglichkeit, aus dem Faservlies durch dreidimensionale Umformung Formkörper (auch im Schicht/Sandwichaufbau mit anderen Materialien) herzustellen.It is possible to provide the 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. Furthermore, 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).
Das Faservlies kann nach entsprechendem Zuschneiden als Dämm- und/oder Isoliermatte und/oder als Verstärkungs- oder Versteifungsteil Anwendung finden und wie bereits vorgenannt beschrieben dreidimensional umgeformt sein.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.
Mit dem Verfahren und der Vorrichtungwird ein Faservlies geschaffen, welches ein sehr großes Volumen aufweist. Daraus hergestellte Dämmmatten oder Isolationsmatten, weisen durch die vielen Lufteinschlüsse hervorragende Dämm- bzw. Isolationseigenschaften auf. Die Dicke der Dämmmatten kann dadurch wesentlich reduziert werden. So kann z.B. mit einer Dämmmatte aus Glasfasern, die eine Dicke von 16mm aufweist und ein Raumgewicht von 65kg/m3 besitzt, eine herkömmliche Dämmmatte (mit Aluminiumkaschierung) mit einer Dicke von 20mm und einem Raumgewicht von 32kg/m3 ersetzt werden.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. For example, with an insulating mat of glass fibers, which has a thickness of 16mm and a density of 65kg / m 3 , a conventional insulating mat (with aluminum lamination) with a thickness of 20mm and a density of 32kg / m 3 replaced.
Die Dämmmatten werden beispielsweise bei Haus- oder Küchengeräten oder auch in Fahrzeugen für Dämm- und/oder Isolierzwecke eingesetzt.The insulating mats are used for example in domestic or kitchen appliances or in vehicles for insulation and / or insulation purposes.
Weiterhin ist es möglich daraus Formteile herzustellen, die beispielsweise als Stütz- und/oder Versteifungs- bzw. Verstärkungselemente dienen und insbesondere im Fahrzeugbereich Anwendung finden.Furthermore, it is possible to produce moldings therefrom which serve, for example, as support and / or stiffening or reinforcing elements and are used in particular in the vehicle sector.
Durch die Verwendung der dünneren Dämmmatten ist es möglich, z.B. in Küchenherden den Garraum zu vergrößern. Bei einer Verwendung der Dämmmatten aus dem neuartigen Faservlies, die wie die bisherigen Dämmmatten eine Dicke von 20mm aufweisen, kann der Energieverbrauch wesentlich verringert werden. Als Fasern werden insbesondere gezogene Glasfasern mit einem einheitlichen Filamentedurchmesser von 0,009 bis 0,025 mm und einer Länge bis 200 mm eingesetzt. Es ist jedoch auch möglich, andere organische oder anorganische Fasern zu verwenden bzw. beizumengen.By using the thinner insulating mats it is possible, e.g. in cooking stoves to increase the cooking space. When using 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.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles und zugehöriger Zeichnungen näher erläutert. Es zeigen:
- Figur 1
- die Prinzipdarstellung einer Anlage zur Herstellung von Faservlies unter Verwendung einer Krempeleinheit 1 in dreidimensionaler Darstellung,
Figur 2- die Seitenansicht gemäß
Fig. 1 . Figur 3- die Prinzipdarstellung einer Anlage zur Herstellung von Faservlies unter Verwendung einer Krempeleinheit 1 und mit einer nachfolgenden Beschichtungseinrichtung und einer Verfestigungseinrichtung in der Seitenansicht,
Figur 4- die Prinzipdarstellung einer Anlage zur Herstellung von Faservlies unter Verwendung einer Faseröffnungs- und Verteilungseinheit 10 in der Vorderansicht.
- FIG. 1
- the schematic representation of a plant for the production of nonwoven fabric using a carding unit 1 in three-dimensional representation,
- FIG. 2
- the side view according to
Fig. 1 , - FIG. 3
- the schematic representation of a plant for the production of nonwoven fabric using a carding unit 1 and with a subsequent coating device and a solidification device in the side view,
- FIG. 4
- the schematic representation of a plant for the production of nonwoven fabric using a fiber opening and
distribution unit 10 in front view.
Gemäß
In der Krempeleinheit 1 erfolgt das Vereinzeln in einzelne Fasern und deren orientierte Ausrichtung. Die Krempeleinheit 1 weist dazu eine Aufnahmewalze 1.1 zum Aufnehmen der Fasern, zwei voneinander beabstandete Arbeitswalzen 1.2, denen jeweils eine Walze 1.3 (Wender) zugeordnet ist, und eine Abgabewalze 1.4 auf. Die Walzen 1.1 bis 1.4 sind um eine Zentralwalze 1.5 herum angeordnet.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.
Aus der Krempeleinheit 1 gelangt der dort aus den Glasfasern erzeugte einlagige Faserflor F (siehe
Dabei wird das Volumen des Faserflors F wesentlich erhöht und kann mit anderen Materialien gemischt werden.The volume of the batt F is substantially increased and can be mixed with other materials.
Während des Transportes des Faserflors F kann das Faserflor F mit einem Bindemittel, Granulat G (z.B. aus thermoplastischem Werkstoff) oder anderen Fasern aus einem Streuaggregat 2.1 infiltriert werden, das beispielsweise über dem Steigband 2 (s.
Unter der ersten Einheit 3 befindet sich die zweite Einheit 4, in die das Faserflor F (siehe
In der Einheit 4 wird auf einem Ablageband 7 das Faservlies FL gebildet, welches durch ein Transportband 8 weitertransportiert wird und z.B. auf eine Rolle gewickelt wird (nicht dargestellt).In the
Gemäß
Das Versiegeln des Faservlieses FL kann auch erst nach dem Verfestigen erfolgen.The sealing of the nonwoven fabric FL can also be done only after solidification.
Aus dem Faservlies FL werden Matten hergestellt bzw. zugeschnitten, die in vielfältigster Weise zur Wärmedämmung und/oder zur Schalldämmung einsetzbar sind.From the nonwoven FL mats are made or cut, which can be used in a variety of ways for thermal insulation and / or sound insulation.
Das Faservlies FL bzw. die daraus hergestellten Matten besitzen eine weiche seidenartige Oberfläche, die nicht mehr an Glasfasern erinnert. Weiterhin werden insbesondere durch das Versiegeln und das Vernadeln keine Glasfasern mehr unerwünscht freigesetzt.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.
Alternativ ist es möglich, gemäß
Jedes Faseröffnungsaggregat 11 weist hier zwei Einzugswalzen 11.1 und eine Zentralwalze 11.2, die mit Nadeln oder hakenähnlichen Elementen bestückt ist (nicht bezeichnet) auf. Um jede Zentralwalze 11.2 herum sind jeweils zwei kleinere Walzen 11.3 angeordnet, die wiederum mit Nadeln oder hakenähnlichen Elementen (nicht bezeichnet) bestückt sind. Vorteilhafterweise ist zwischen den Einzugswalzen 11.1 und der folgenden kleineren Walze 11.3 eine starre Nadelleiste 11.4 angeordnet, die von der Zentralwalze 11.2 durchkämmt wird. Die Fasern können per Luft oder mechanisch über eine Abgabewalze (nicht dargestellt) abgezogen werden.Each fiber-opening
Den beiden Faseröffnungsaggregaten 11 sind hier die drei Faserverteilungsanlagen 12 nachgeschaltet, die unmittelbar hintereinander angeordnet sind. Den Faserverteilungsanlagen ist jeweils ein Faserspeicher 12.1 mit einer nachfolgenden gleichmäßigen Verteilung der Fasern über die Arbeitsbreite durch Zusammenwirken eines nadel- oder hakenähnlich bestückten Bandes 12.2 mit entsprechend angeordneten Abschlag- und Rückstreifwalzen 12.3 vorgesehen, wobei die Fasern ebenfalls über ein Transportband 12.4 dem nadel- oder hakenähnlich bestückten Band 12.2 zugeführt werden.The two fiber-opening
Aus der Faseröffnungs- und Verteilungseinheit 10 gelangt das einlagige Faserflor F, welches aus den vereinzelten Glasfasern gebildet wird, ebenfalls über ein Steigband 2 in die erste Einheit 3, in welcher die Fasern des Faserflors F in eine Wirrlage umorientiert werden. Unter der ersten Einheit 3 befindet sich die zweite Einheit 4, in die das Faserflor F (siehe
Auch hier ist es möglich, dem Faserflor F oder dem Faservlies FL Bindemittel/Granulat (z.B. aus thermoplastisch- / phenoplastischem Werkstoff) oder andere Fasern beizufügen.Again, it is possible to add binder / granules (e.g., thermoplastic / phenolic material) or other fibers to the batt F or batt FL.
Das Infiltrieren mit thermoplastisch- / phenoplastischem Bindemittel erfolgt bevorzugt ebenfalls über dem Steigband 2 und/oder in der ersten Einheit 3 mittels eines nicht dargestellten Streuaggregates. Die Beimengung anderer Fasern kann am Beginn der Verarbeitungsstrecke und/oder oder in der ersten Einheit erfolgen. Bei der Variante gemäß
Gemäß einem nicht dargestellten Ausführungsbeispiel ist es auch möglich, mehrere Faseröffnungseinrichtungen, die gleich oder unterschiedlich konfiguriert sein können, zu verwenden. Beispielsweise kann eine Faseröffnungseinrichtung in Form einer Faseröffnungs- und Verteilungseinheit (gem.
Die aus dem Faservlies hergestellten Matten sind weitestgehend elastisch und gehen dadurch nach dem Zusammendrücken auf ihre ursprüngliche Dicke zurück.The mats produced from the nonwoven fabric are largely elastic and thus return to their original thickness after being compressed.
Es sind keine störenden Aluminiumkaschierungen vorhanden, die sich insbesondere bei notwendigen elektrischen Kontaktierungen negativ auswirken können. Weiterhin ist keine spezielle Vorder- beziehungsweise Rückseite vorhanden, wodurch sich der Einbau der Matten aus dem erfindungsgemäßen Faservlies einfacher gestaltet.There are no disturbing aluminum laminations present, which can have a negative effect, in particular with necessary electrical contacts. Furthermore, there is no special front or rear side, which makes the installation of the mats of the non-woven fabric according to the invention simpler.
Durch das wahlweise Einbringen von Bindemittel, Granulat oder anderen Fasern kann nach entsprechender thermischer oder chemischer Verfestigung eine Fasermatte hergestellt werden, die durch anschließende Umformung eine 3-dimensionale Gestalt annehmen kann.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.
Das wesentliche Anwendungsgebiet sind dabei bevorzugt Küchengeräte für den privaten und/oder gewerblichen Bedarf, bei welchen eine gute Wärmedämmung erforderlich ist, z.B. Kochherde, Mikrowellen, Heißluftgargeräte, Waschmaschinen, Wäschetrockner usw. Es ist jedoch auch möglich, die Glasfasermatten in Fahrzeugen oder in der Bauindustrie einzusetzen. Dabei sind je nach Anwendungsgebiet einfache einschichtige Glasfasermatten einsetzbar, die auf einer oder beiden Seiten beschichtet sein können (z.B. mit Wasserglas) und die beispielsweise in Küchenherden oder anderen vorgenannten Anwendungsgebieten eingesetzt werden. Weiterhin ist es möglich Formteile aus thermoverfestigten einschichtigen Glasfasermatten herzustellen, die beispielsweise als Stütz- und/oder Versteifungs- bzw. Verstärkungselemente dienen und insbesondere im Fahrzeugbereich Anwendung finden.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. However, it is also possible to use the glass fiber mats in vehicles or in the construction industry. Depending on the field of application, it is possible to use 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. Furthermore, it is possible to produce molded parts from thermo-consolidated single-layer glass fiber mats which serve, for example, as support and / or stiffening or reinforcing elements and are used in particular in the vehicle sector.
Alternativ können die Glasfasermatten, die aus dem Faservlies hergestellt werden, die Ausgangsbasis als Halbzeug für die Herstellung von Formkörpern mit einer Kaschierung oder einem anderen Schichtaufbau bilden. In diesem Fall werden die Glasfasermatten mit einem Bindemittel infiltriert und insbesondere gemeinsam mit den anderen Materialien zu einem Formteil verpresst.Alternatively, 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. In this case, the glass fiber mats are infiltrated with a binder and in particular compressed together with the other materials to form a molding.
Das Faservlies kann als ununterbrochene Ware z.B. auf Rollen an einen Verbraucher geliefert werden, der diese dann Zuschneidet und weiterverarbeitet.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.
Es ist auch möglich, das Faservlies bei dessen Hersteller zu Halbzeugen oder Finalprodukten zu verarbeiten.It is also possible to process the nonwoven fabric at its manufacturer to semi-finished or final products.
Durch die Verwendung von Glasfasern aus gezogenen Endlosfasern mit einem einheitlichen Filamentedurchmesser, die in eine einheitlichen Länge getrennt wurden und als Stapelfasern vorliegen, kann durch die nur zweistufige Verarbeitung in der
- Faseröffnungseinrichtung (Krempeleinheit 1 und/oder Faseröffnungs- und Verteilungseinheit 10) in welcher eine Vereinzelung und Verteilung der Glasfasern zu einem Faserflor F aus losen Glasfasern erfolgt
und der - ersten Einheit, in welcher die Glasfasern des Faserflors Fin eine Wirrlage bei einer Volumenvergrößerung umorientiert werden,
- Fiber opening device (carding unit 1 and / or fiber opening and distribution unit 10) in which there is a separation and distribution of the glass fibers to a batt F of loose glass fibers
and the - first unit in which the glass fibers of the fibrous web Fin a random orientation at a volume increase,
in Verbindung mit der zweiten Einheit 4, in welcher der Aufbau des Faservlieses FL mit einem größeren Flächengewicht im Vergleich zum Faserflor F erfolgt, ein Faservlies FL aus Glasfasern erzeugt werden, welches nur eine Lage aufweist und homogen ist und dabei eine größere Dicke hat, als das Faserflor F, welches die Ausgangsbasis bildet.in connection with the
Dies war bisher nur mit einer aufwendigen Legetechnik möglich, bei welcher unter Anwendung eines Kreuzlegers mehrere Bahren des Faserflors übereinander gelegt wurden. Dadurch, dass auf den Kreuzleger verzichtet werden kann, der teuer ist und einen großen Platzbedarf benötigt, wird eine einfache, kostengünstige und einen geringen Bauraum benötigende Anlage zur Herstellung von Faservlies aus Glasfasern geschaffen, die im Vergleich zu herkömmlichen Lösungen auch wesentlich störunanfälliger arbeitet und wartungsarm ist.This was previously only possible with a complex laying technique in which several stretchers of the batt were superimposed using a cross-stacker. The fact that can be dispensed with the crosslapper, which is expensive and requires a lot of space, a simple, inexpensive and a small space-requiring plant for the production of fiber fleece fiberglass is created, which also works much störunanfälliger compared to conventional solutions and low maintenance is.
- 11
- Krempeleinheitcarding unit
- 1.11.1
- Aufnahmewalzepick-up roller
- 1.21.2
- Arbeitswalzenstrippers
- 1.31.3
- Wenderslice
- 1.41.4
- Abgabewalzedelivery roller
- 1.51.5
- Zentralwalzecentral roll
- 22
- SteigbandIncline belt
- 2.12.1
- Streuaggregatscattering unit
- 33
- erste Einheitfirst unit
- 44
- zweite Einheitsecond unit
- 55
- Beschichtungseinheitcoating unit
- 66
- Einrichtung zur VerfestigungDevice for solidification
- 77
- Ablagebanddepositing belt
- 88th
- Transportbandconveyor belt
- 1010
- Faseröffnungs- und VerteilungseinheitFiber opening and distribution unit
- 1111
- FaseröffnungsaggregatFiber opening assembly
- 11.111.1
- Einzugswalzenfeed rollers
- 11.211.2
- Zentralwalzecentral roll
- 11.311.3
- kleine Walzensmall rolls
- 11.411.4
- Nadelleisteneedle bar
- 1212
- FaservereinzelungsanlagenFiber separation installations
- 12.112.1
- Faserspeicherfiber storage
- 12.212.2
- Bandtape
- 12.312.3
- Abschlag- und RückstreifwalzenTee and reverse rollers
- FF
- Faserflorbatt
- FLFL
- Faservliesnon-woven fabric
- GG
- Granulatgranules
Claims (11)
- A system for producing a nonwoven fabric on the basis of glass fibres, for insulating and/or isolating purposes, and/or as a reinforcing or stiffening part, consisting of- at least one fibre opening device for dispersing and the oriented or non-oriented alignment of the glass fibres and for forming a fibrous web (F), a first unit (3) for the reorientation of the oriented or non-oriented fibres of the fibrous web (F) into fibres which assume a random position, wherein the volume of the fibrous web (F) is increased/the density of the fibrous web is decreased so that numerous air pockets are present in the fibrous web, an elevating belt (2) which conveys the fibrous web (F) from the fibre opening device at a velocity to the first unit (3),- a second unit on which a homogeneous single-layer nonwoven fabric (FL) having fibres in a random position is formed from the fibrous web (F) of the first unit (3) on a laying belt (7), the weight per unit area of said nonwoven fabric being a multiple of the weight per unit area of the fibrous web (F),- wherein the forward running velocity of the laying belt (7) can be reduced for increasing the weight per unit area of the homogeneous nonwoven fabric (FL) in comparison with the speed of the elevating belt (2) in such a way- that the second unit (4) builds up the homogeneous single-layer nonwoven fabric (FL) with an increase of up to 50 times of the pile weight from the fibres situated in random position by means of negative pressure on the laying belt (7).
- A system according to claim 1, that the fibre opening device is formed by a carding unit (1) and/or at least one fibre opening and distribution unit (10).
- A system according to claim 1 or 2, characterized in that the fibre opening device (1, 10) is arranged before the first unit (3), and the second unit (4) is disposed downstream of the first unit (3).
- A system according to claim 1 or 2, characterized in that the first unit (3) and the second unit (4) are arranged on top of each other.
- A system according to one of the claims 1 to 4, characterized in that at least one scattering unit (2.1) for introducing a bonding agent, granulate (G) or other fibres onto/into the fibrous web (F) is arranged above the elevating belt (2) and/or above the first unit (3).
- A system according to one of the claims 1 to 5, characterized in that the first unit (3) comprises at least two rollers provided needles and/or hooks for the reorientation of the fibres of the fibrous web (F) to a random position.
- A system according to claim 6, characterized in that in the first unit (3) the rollers and an air stream are combined for the reorientation of the fibres to a random position.
- A system according to one of the claims 1 to 7, characterized in that a device for solidifying (5) (thermal solidifying or mechanical solidifying/needling) of the nonwoven fabric (FL) follows the second unit (4).
- A system according to one of the claims 1 to 8, characterized in that it comprises a coating device (6) for surface sealing of the nonwoven fabric (FL) on one or both sides by means of water glass or plastic or adhesive or resin.
- A method for producing a nonwoven fabric on the basis of glass fibres for insulating and/or isolating purposes and/or as a reinforcing or stiffening part,- wherein a dispersion and separation of the glass fibres into a fibrous web (F) with an oriented and non-oriented alignment of the glass fibres occurs in a fibre opening device from glass fibres present in form of staple fibre, the fibrous web (F) is supplied via an elevating belt (2) with a velocity to a first unit (3) in which a reorientation of the fibres of the fibrous web (F) occurs into fibres which assume a random position, wherein the volume of the fibrous web (F) is increased/the density of the fibrous web (F) is decreased so that numerous air pockets are present in the fibrous web (F),- and subsequently a homogeneous single-layer nonwoven fabric (FL) with fibres in random position is produced in a second unit (4) on a laying belt (7) from the fibrous web (F) of the first unit (3), the weight per unit area of said nonwoven fabric being a multiple of the weight per unit area of the fibrous web (F), wherein the forward running speed of the laying belt (7) is reduced in comparison with the speed of the transport means/elevating belt (2) for increasing the weight per unit area of the homogeneous nonwoven fabric (FL) in such a way- that by reducing the forward running speed of the laying belt (7) an increase of up to 50 times of the pile weight of the produced nonwoven fabric (FL) is achieved in comparison with the pile weight of the fibrous web (F), and a single-layer homogeneous nonwoven fabric (FL) is thus built up from the glass fibres by means of negative pressure on the laying belt (7).
- A method according to claim 10, characterized in that a bonding agent, granulate or other additional fibres are infiltrated individually or in combinations into the fibrous web (F).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10781593T PL2480709T3 (en) | 2009-09-24 | 2010-09-23 | System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202009012819U DE202009012819U1 (en) | 2009-09-24 | 2009-09-24 | Plant for the production of fiber fleece mats and fiber fleece produced therewith |
PCT/DE2010/075094 WO2011035782A1 (en) | 2009-09-24 | 2010-09-23 | System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2480709A1 EP2480709A1 (en) | 2012-08-01 |
EP2480709B1 true EP2480709B1 (en) | 2015-09-30 |
Family
ID=43417102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10781593.8A Active EP2480709B1 (en) | 2009-09-24 | 2010-09-23 | System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2480709B1 (en) |
DE (2) | DE202009012819U1 (en) |
PL (1) | PL2480709T3 (en) |
WO (1) | WO2011035782A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012008931B4 (en) * | 2012-05-04 | 2014-08-21 | Trützschler GmbH & Co Kommanditgesellschaft | Method and device for adjusting the fiber orientation on carding machines |
DE202014100908U1 (en) | 2014-02-27 | 2015-05-28 | Autefa Solutions Germany Gmbh | carding |
CN107287767A (en) * | 2017-06-15 | 2017-10-24 | 唐新雄 | Modified imbibition non-woven fabrics and preparation method thereof |
DE102020001262A1 (en) | 2020-02-27 | 2021-09-02 | Hubert Hergeth | Process for the production of a fiber fleece with different fiber orientations |
CN114261113B (en) * | 2021-12-28 | 2023-12-05 | 北新建材(天津)有限公司 | Production device for formaldehyde-purifying glass felt plate |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3338777A (en) * | 1966-05-11 | 1967-08-29 | Pittsburgh Plate Glass Co | Fiber glass mat and method of making same |
US20030208891A1 (en) * | 2002-05-08 | 2003-11-13 | Massoud Mohammadi | Insulative non-woven fabric and method for forming same |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2702069A (en) * | 1951-01-30 | 1955-02-15 | Owens Corning Fiberglass Corp | Method for forming fibrous mats |
NL107696C (en) | 1956-02-16 | |||
CH358736A (en) | 1959-08-05 | 1961-11-30 | Saint Gobain | Process for the production of insulating material, which consists of glass fiber mats or fleeces |
GB1154324A (en) * | 1965-08-27 | 1969-06-04 | Cape Insulation Ltd | Heat Insulating Materials |
DE2436539B2 (en) * | 1974-07-30 | 1976-09-02 | NON-WOVEN TEXTILE FABRIC AND METHOD FOR ITS MANUFACTURING | |
DE2511945A1 (en) * | 1975-03-19 | 1976-09-30 | Krupp Gmbh | METHOD FOR FORMING A HANGING FIBER FLEECE WITH APPROXIMATELY EQUAL LENGTH AND TRANSVERSAL STRENGTH AND DEVICE FOR CARRYING OUT THE METHOD |
FR2316364A1 (en) * | 1975-06-30 | 1977-01-28 | Rudloff Bernard | NON-TISSUE TAPPING PROCESS AND DEVICE FOR IMPLEMENTING THIS PROCESS |
DD218913B1 (en) * | 1983-03-25 | 1988-06-15 | Univ Dresden Tech | METHOD AND DEVICE FOR PRODUCING FIBER CLAD |
DD256880A1 (en) * | 1986-12-31 | 1988-05-25 | Univ Dresden Tech | DEVICE FOR RETRIEVAL |
DD262142A3 (en) * | 1986-12-31 | 1988-11-23 | Univ Dresden Tech | DEVICE FOR MODELING, STRUCTURING AND MODIFYING THE FLUID MASS |
DE3701745A1 (en) * | 1987-01-22 | 1988-08-04 | Hollingsworth Gmbh | METHOD AND DEVICE FOR THE PRODUCTION OF FIBER FIBERS FROM PLANTS LAYING ABOVE OTHER |
DE3721715A1 (en) | 1987-07-01 | 1989-01-12 | Vaw Ver Aluminium Werke Ag | COMPOSITE MATERIAL FROM ALUMINUM AND FIBERGLASS MATS AND METHOD FOR THE PRODUCTION THEREOF |
FI83888C (en) * | 1988-02-17 | 1991-09-10 | Pargro Oy Ab | Process and apparatus for producing a fiber product |
DE3905541A1 (en) | 1989-02-23 | 1990-08-30 | Spinnbau Gmbh | KREMPEL FOR THE PRODUCTION OF MATERIAL OR LENGTH-ORIENTED FIBER FIBER |
EP0914916A1 (en) | 1997-11-04 | 1999-05-12 | Materials Technics Société Anonyme Holding | Method for producing a composite material |
ATE283244T1 (en) | 1998-04-06 | 2004-12-15 | Rockwool Int | SYNTHETIC GLASS FIBER MATS AND THEIR PRODUCTION |
DE10329648B4 (en) * | 2003-07-01 | 2005-06-16 | Oskar Dilo Maschinenfabrik Kg | Device for web formation |
DE102004021453A1 (en) | 2004-04-29 | 2005-11-17 | Concert Gmbh | Forming head and method for producing a nonwoven fabric |
DE102008024943B4 (en) * | 2007-08-22 | 2017-10-26 | Eswegee Vliesstoff Gmbh | Process for producing a base nonwoven fabric as a coating carrier |
WO2009048857A1 (en) * | 2007-10-09 | 2009-04-16 | 3M Innovative Properties Company | Mounting mats including inorganic nanoparticles and method for making the same |
-
2009
- 2009-09-24 DE DE202009012819U patent/DE202009012819U1/en not_active Expired - Lifetime
-
2010
- 2010-09-23 EP EP10781593.8A patent/EP2480709B1/en active Active
- 2010-09-23 DE DE102010037731A patent/DE102010037731A1/en not_active Withdrawn
- 2010-09-23 WO PCT/DE2010/075094 patent/WO2011035782A1/en active Application Filing
- 2010-09-23 PL PL10781593T patent/PL2480709T3/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3338777A (en) * | 1966-05-11 | 1967-08-29 | Pittsburgh Plate Glass Co | Fiber glass mat and method of making same |
US20030208891A1 (en) * | 2002-05-08 | 2003-11-13 | Massoud Mohammadi | Insulative non-woven fabric and method for forming same |
Also Published As
Publication number | Publication date |
---|---|
DE202009012819U1 (en) | 2011-02-10 |
WO2011035782A1 (en) | 2011-03-31 |
DE102010037731A1 (en) | 2011-03-31 |
PL2480709T3 (en) | 2016-03-31 |
EP2480709A1 (en) | 2012-08-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2536545B1 (en) | Method for producing pellets from fiber composite materials | |
EP2536546B1 (en) | Method for producing a flat semi-finished product from fiber composite material, and the obtained semi-finished product | |
DE69302744T3 (en) | Process for producing nonwoven-like material containing mineral fibers and binder and products derived therefrom | |
WO2005106091A1 (en) | Moulded head and method for the production of a nonwoven fabric | |
EP2630287B1 (en) | Method and apparatus for producing a composite nonwoven | |
EP2480709B1 (en) | System and method for producing glass fiber fibrous non-woven fabric, and fibrous non-woven fabric produced using same | |
DE2756503A1 (en) | METHOD AND DEVICE FOR MANUFACTURING MINERAL WOOL FIBER BOARD | |
EP3009551B1 (en) | Method for forming a textile material by the use of hemp and fibre reinforced composite material from this textile material | |
DD283660A5 (en) | FIBERGLES OF HEAT-RESISTANT MATERIAL, AND A METHOD AND DEVICE FOR ITS MANUFACTURE | |
EP2963167B1 (en) | Method for the preparation of fibre non-woven mats, in particular insulating material mats, and fibre non-woven mats obtained by this method | |
EP1056892B1 (en) | Device and method for producing a fiber composite | |
EP2125438B1 (en) | Method and device for producing a molded part and molded part as heat insulating and/or sound absorbing element | |
WO2003033226A1 (en) | Fibre mat, moulded piece produced therefrom and method for production thereof | |
DE3325643C2 (en) | Building board and method and device for their manufacture | |
DE1510427B1 (en) | Method and device for the production of molded fiber bodies, in particular absorbent bodies for sanitary napkins | |
EP0392983B1 (en) | Process for manufacture of a moulded building material | |
DE102004053131A1 (en) | Process and assembly to manufacture board or furniture component by random combination of polypropylene fibres with natural fibres and decor paper | |
EP4168616B1 (en) | Method for the continuous production of nonwoven fabric, and associated nonwoven fabric production apparatus and nonwoven board | |
AT410552B (en) | DEVICE FOR THERMALLY STRENGTHENING A FIBER FLEECE MADE OF NATURAL FIBERS MIXED WITH BINDING FIBERS, IN PARTICULAR HANEM FIBERS | |
DE69937842T2 (en) | METHOD FOR PRODUCING A MAT AND OBJECTS PRODUCED FROM THEREOF | |
WO2021152163A1 (en) | Mixing device for producing a mixture of mineral fibers and binders, system for producing a mineral fiber mat, and method for producing a mixture of mineral fibers and binders | |
DE1510427C (en) | Method and device for the production of fibrous molded articles, especially absorbent articles for sanitary napkins | |
WO2013102592A1 (en) | Device and method for producing a mineral wool fibre part |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120321 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20130506 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20150708 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 752488 Country of ref document: AT Kind code of ref document: T Effective date: 20151015 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502010010393 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151231 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151230 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160201 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502010010393 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
26N | No opposition filed |
Effective date: 20160701 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160923 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160923 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 752488 Country of ref document: AT Kind code of ref document: T Effective date: 20160923 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20160930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160923 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20100923 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150930 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190924 Year of fee payment: 10 Ref country code: NL Payment date: 20190923 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20190924 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20201001 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20200923 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200923 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20230911 Year of fee payment: 14 Ref country code: DE Payment date: 20230608 Year of fee payment: 14 |