EP2078769A1 - Ein Formkopf zum trockenen Legen eines Faserstoffs - Google Patents

Ein Formkopf zum trockenen Legen eines Faserstoffs Download PDF

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Publication number
EP2078769A1
EP2078769A1 EP08150185A EP08150185A EP2078769A1 EP 2078769 A1 EP2078769 A1 EP 2078769A1 EP 08150185 A EP08150185 A EP 08150185A EP 08150185 A EP08150185 A EP 08150185A EP 2078769 A1 EP2078769 A1 EP 2078769A1
Authority
EP
European Patent Office
Prior art keywords
forming head
forming
distribution unit
spikes
distribution
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.)
Withdrawn
Application number
EP08150185A
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English (en)
French (fr)
Inventor
Marianne Etlar Eriksen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Portico Ldt
Original Assignee
Portico Ldt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Portico Ldt filed Critical Portico Ldt
Priority to EP08150185A priority Critical patent/EP2078769A1/de
Priority to AU2009203705A priority patent/AU2009203705A1/en
Priority to CN2009801032115A priority patent/CN101925697B/zh
Priority to CA2711808A priority patent/CA2711808A1/en
Priority to NZ587277A priority patent/NZ587277A/en
Priority to DK09700432.9T priority patent/DK2238281T3/da
Priority to AT09700432T priority patent/ATE535634T1/de
Priority to PCT/EP2009/050273 priority patent/WO2009087236A1/en
Priority to US12/812,346 priority patent/US20100283176A1/en
Priority to PL09700432T priority patent/PL2238281T3/pl
Priority to BRPI0905731-5A priority patent/BRPI0905731A2/pt
Priority to EP09700432A priority patent/EP2238281B1/de
Priority to RU2010132248/12A priority patent/RU2502837C2/ru
Priority to KR1020107017588A priority patent/KR20100116185A/ko
Publication of EP2078769A1 publication Critical patent/EP2078769A1/de
Priority to ZA2010/05680A priority patent/ZA201005680B/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • 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
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/42—Multi-ply comprising dry-laid paper

Definitions

  • the present invention relates to a forming head for dry forming a fibrous web, the forming head being positioned above a forming wire opposite a suction unit.
  • the present invention also relates to a method of using said forming head.
  • forming head of this type are known, for instance from European Patent Application 0 159 618 .
  • This application describes a forming head provided with a bottom net or sieve having a plurality of openings.
  • wings, rollers or other scraping or brushing devices which in an active manner removes fibres from the sieve at the bottom of the forming head.
  • a suction unit is provided underneath the forming wire for drawing the fibres through the bottom and onto the forming wire.
  • the size of the openings in the mesh or sieve in the bottom of the forming box is decided by the fibres, which are to be distributed on the forming wire. This is particularly relevant in relation to the use of cellulose fibres in the manufacture of paper products including absorbing products, such as napkins. Thus, there has been a limitation in the length of the fibres used.
  • WO 99/36623 describes a forming head with an open bottom, i.e. without a bottom mesh or sieve.
  • the distribution of fibres is carried out by a plurality of revolving spike rollers. Said spikes are arranged to partly hold the fibres back against the effect from the suction of the underlying suction unit.
  • the cloud of fibres which is formed inside the forming head of single fibres, which are slit up and mixed in the air stream, are transferred down onto the underlying wire by the application of the revolving spike rollers.
  • This increases the capacity of the forming apparatus significantly.
  • the inventor has discovered that agglomerates of fibres may pass the spike rollers without being torn sufficiently apart by the spikes, resulting in an uneven distribution of fibres on the forming wire and therefore in an inhomogeneous final product.
  • the forming head is divided into a plurality of interconnected distribution units each of which comprises at least one revolving roller, which are provided with protruding spikes.
  • the inventor By dividing the forming head into a plurality of interconnected distribution units, the inventor has surprisingly found that a more efficient disintegration of fibres is achieved compared to the known forming heads.
  • Using the forming head according to the present invention will thereby not only ensure, that all agglomerates, shadows and/or lumps in the fibrous material will be removed but also that the fibres will completely opened and separated.
  • the present invention therefore provides the possibility of producing uniform webs at higher speeds than heretofore possible and/or to improve the uniformity of webs made at existing speeds. This is assumed that the very high degree of separation caused by the different distribution steps improves the mixing of fibres in the forming head to give these improved results.
  • a forming head according to the present invention When a forming head according to the present invention is applied in a dry-forming apparatus, it has furthermore been possible to form a fibrous product, where problems are avoided with the variation of the thickness over the width of the product.
  • each distribution unit can also be constructed to meet specific and unique requirements. Such requirements could e.g. be related to the final product, the fibre material used or the air flow supplied in the forming head.
  • each distribution unit can be designed optimally, ensuring that the specific unit is best suited for distributing and mixing the fibres.
  • one of the distribution units can be designed to give a very high impact force to the fibre material supplied to the unit, whereas another distribution unit can be designed to ensure a high degree of mixing of the fibre material supplied to the forming head.
  • the forming head according to the invention does not only provide a more efficient opening and disintegration of fibres than hitherto known, but will also ensure that that fibre lumps or oversized fibres are prevented from being laid down on the forming wire and that the fibres are mixed homogenously before they are placed on the forming wire.
  • the forming head according to the invention thereby achieves an even distribution of fibres on the forming wire without reducing the capacity of the fibre distributor.
  • the at least one revolving roller in at least one of the distribution units can advantageously cover the entire sectional area of the distribution unit when seen in a mainly horizontal plane.
  • the person skilled in the art will based on the material used and the final product in combination with the information provided in the present application be able to find the optimal requirements for the different distribution units and thereby the forming head according to the invention.
  • the at least one distribution unit comprises a plurality of revolving roller arranged in a substantially horizontal plane.
  • the fibrous material in this respect will be forced to pass the revolving rollers, it is ensured that the fibres are symmetrically laid down on the forming wire, forming a final product with a homogeneous thickness over the width of the forming wire.
  • the revolving rollers can be placed so that the outer ends of the spikes describe circles that overlap each other e.g. meshes like toothed gear.
  • Such an embodiment has the advantage that the revolving rollers can be placed closer to each other, whereby the fibres can be influenced by more than one spike at a time. This will provide a higher impact force on the agglomerates, lumps and/or shadows, enabling a better disintegration of the fibrous material.
  • the outer ends of the spikes are transferred in-between each other, it becomes possible to manufacture a fibrous tissue using very short fibres, for instance with lengths down to 3 mm.
  • the revolving rollers can be placed so that the outer ends of the spikes describe circles that do not overlap each other. This is especially advantageously when the forming head according to the present invention handles long fibres, for instance with a length of 60 mm or more as the circles which define the outer ends of the spikes substantially just touch each other or are a little shifted from each other.
  • the spikes on one revolving rollers are preferably placed very close to the spikes on a neighbouring roller, e.g. 2 mm.
  • the spikes can according to one embodiment according to present invention be made of a partly or completely flexible material. In this way it is ensured, that if the spikes touches or hits each other or the wall of the forming head, the spikes will not break or snap. This will ensure that the forming head is more reliable in operation and requires lesser maintenance than the known forming heads using non-flexible spikes.
  • Such flexible or partly flexible spikes can e.g. be in the form of bristles or brushes.
  • the spikes can be made of a non-flexible material.
  • Such spikes will provide a higher force of impact, which is preferred for some kinds of fibre material.
  • Using a non-flexible material for the spikes will thereby ensure that especially recalcitrant agglomerates, lumps and/or shadows are disintegrated.
  • each forming head can be individually and optimally designed to the material used and the desired final product.
  • the forming head according to the invention can therefore be constructed to be able to handle long fibres, particles and/or short fibres.
  • the at least one roller in at least one of the distribution unit are detachable mounted. Thereby is it possible to adjust e.g. the closeness of the spikes on the revolving rollers, the length of the spikes and/or the material the spikes are made of.
  • the adjustment can e.g. be effected by mounting the rollers mutually displaceable in a substantially horizontal plane, whereby it is possible to establish gabs, which allow a bigger amount of fibre material to pass within a given periode of time.
  • the forming head can advantageously be provided with a bottom with a plurality of openings.
  • This bottom can preferably be placed in the distribution step closest to the forming wire, but can within the scope of protection be placed in all, some or none of the distributions units, depending on the used fibrous material and the final product.
  • the suction unit placed beneath the forming wire which preferably is a vacuum unit, will influence the small particles and/or fibres to a higher degree than the longer fibres.
  • the fixed bottom will prevent the small fibres and/or particles from being sucked directly through the revolving rollers and onto the forming wire and will contribute to ensure that products comprising small fibres and/or particles also are homogenous.
  • the fixed bottom can preferably be in the form of a sieve, net or a grid arranged for placing the fibres and/or particles on the forming wire.
  • the bottom can comprise wings, rollers or other scraping or brushing devices, which in an active manner removes fibres from the bottom.
  • the size of the openings in the mesh or sieve at the bottom of the forming box depends upon the characteristics of the fibres and/ particles, which are to be distributed on the forming wire and on the desired product. This is particularly relevant in relation to the use of cellulose fibres in the manufacture of paper products including absorbing products, such as napkins.
  • the bottom When the bottom is in the form of a grid having a plurality of detachable grid elements, the bottom can be easily changed to in order not only to adjust and/or change the capacity of the forming head, but also in order to change the transferring rate of the fibres to the forming wire. In this respect the bottom can contribute in optimising the final product.
  • the rollers can preferably be placed either horizontally or vertically whereby the spikes will rotate in a vertical plane and a horizontal plane, respectively. This is preferred because of the symmetrically laying down of fibres so that a tissue with homogeneous thickness is formed over the width of the forming box.
  • rollers in each layer can be placed on a row with their longitudinal axis oriented parallel or orthogonal on the movement direction of the forming wire.
  • the longitudinal axis of the rollers can, however, also be oriented in the direction parallel with the movement direction of the forming wire.
  • the rollers in each distribution unit are adapted for being rotated around their longitudinal axes with the same rate of rotations, e.g. within an interval of between 200 and 5000 rpm, preferably about 2000-3000 rpm.
  • rollers can in a different embodiment be adapted for having different rates of rotation in the different distribution steps or simply within a single distribution unit.
  • rotational speed By allowing the rotational speed to be adjustable, each distribution unit can be made to work at an optimum, even if the unit at different times is supplied with different amounts of materials. In this respect it is also possible to design each distribution steps for materials having special physical properties.
  • each revolving roller can be distributed both along the longitudinal axis of the roller, and along the circumference of the roller. It is preferred that said distribution is evenly in both directions in order to ensure a homogenous distribution to the forming wire.
  • the axial distance between the spikes is between 3 and 20 mm, and that the thickness of the spikes is between 0,5 and 10 mm.
  • the length of the spikes will be between 5 and 200 mm, preferably about 100 mm.
  • the outer ends of the rollers with the protruding spikes are spaced in order to allow the passage in-between for corresponding spikes on an adjacent roller, e.g. the spikes meshes like a toothed wheel.
  • the spikes meshes like a toothed wheel.
  • spikes will cover an embodiment with largely thread-formed spikes.
  • plate-formed elements which also can be designated as wings.
  • Such plate-formed wings will primarily be formed with the expanse placed in a plane orthogonally on the rotation axis of the axle.
  • the plates can be formed with a slope or be formed like propellers to bring about an upwards or downwards directed action on the fibre cloud.
  • the wings can be provided with holes. Such holes can facilitate the passage of air. By appropriate choice of revolving speed and form of holes in the rollers the passage of fibres to such holes can be hindered or limited.
  • the forming head comprises four distribution units, placed in succession starting from the distribution unit farthest from the forming wire. It has surprisingly been found that when the first distribution unit comprises one revolving roller, the second distribution unit comprises two revolving rollers, the third distribution unit comprises one revolving roller, and the forth distribution unit comprises a plurality of revolving roller arranged in a substantially horizontal plane, the fibrous material will be completely opened and free from lumps and shadows which again ensures a very even distribution of the fibres on the forming wire.
  • the top distribution unit are preferably arranged to be able to transfer a relatively higher impact to the fibrous material.
  • a single revolving roller having long spikes of e.g. between 50 and 130 mm in length is preferred.
  • the first distribution unit can have the same or a smaller horizontal cross section than the underlying distribution unit(s).
  • the final product may be made from or at least include natural fibres, such as cellulose fibres, fibres from flax, hemp, jute, ramie, sisal, cotton, kapok, glass, stone, old newsprint, elephant grass, sphagnum, seaweed, palm fibres or the like. These fibres have a certain insulating capacity that may be useful in many applications.
  • natural fibres such as cellulose fibres, fibres from flax, hemp, jute, ramie, sisal, cotton, kapok, glass, stone, old newsprint, elephant grass, sphagnum, seaweed, palm fibres or the like.
  • the product may also be made from or at least include a portion of synthetic fibres, such as polyamide, polyester, polyacrylic, polypropylene, bi-component or vermiculite fibres or the like as well as any kind of granular material.
  • Fibreboards with such synthetic fibres may be used for providing the fibre product with certain properties, e.g. absorbent products.
  • the fibres may be pre-treated with a fire retardant or a fire retardant may be supplied directly in the fibre mixture which is blown into the forming box.
  • the forming head according to the present invention is capable of using very long fibres, it is possible to create a stable product, although it is manufactured with a big thickness. This is due to the fact that the long fibres are capable of forming fibrous bindings over a relatively big layer of material, e.g. up to 200-400 mm.
  • the bindings can be crispy hydrogen bindings or elastic bindings, which are established by means of binding material or a combination hereof.
  • the forming head according to the invention can therefore be used to e.g. manufacture isolation mats from synthetic fibres or natural fibre or mixtures hereof
  • the distribution unit closest to the forming wire can optionally comprise end walls, which can be adjusted with respect to the heights in relation to the forming wire.
  • the forming head according to the invention comprises four distribution units. This are of course in no manner intended to be limiting to the invention, and within the scope of the present invention the forming head can comprise from two to a plurality of distributions units.
  • a forming head 1 according to a first embodiment of the invention is shown.
  • the forming head comprises four independent interconnected distribution units 2, 3, 4 and 5 respectively. Fibres are supplied to the first distribution unit 2 via an inlet 6.
  • a suction unit 7 is positioned beneath a forming wire 8, and the forming head is positioned above the wire. Fibres 9 are air laid on the forming wire 8 to form a web 10 in a dry forming process.
  • the forming head is shown with the interior elements visible in the forth distribution unit 5.
  • the housing walls may be made from transparent or opaque materials.
  • each distribution unit 23,4,5 revolving rollers are provided with protruding spikes 12.
  • the first distribution unit 2 comprises one revolving roller 11
  • the second distribution unit 3 comprises two revolving rollers 12
  • the third distribution unit 4 comprises one revolving roller 14
  • the forth distribution unit 5 comprises five revolving rollers 15, 16, 17, 18, 19, placed in a substantially horizontal plane parallel to the forming wire 8.
  • the five revolving rollers 15, 16, 17, 18, 19, which are placed within the forth distribution unit, can be said to make up the bottom of the forming head wherein three revolving rollers 15, 16, 17 are placed by one side wall of the distribution unit and two revolving rollers 18, 19 at the opposite side.
  • Engines 20 arranged with the possibility for a variable revolution rate, drives each revolving roller, ensuring that it is possible to adjust the revolution rate of the engines dependent of choice of rollers, spikes and the product, which is to be formed.
  • Each of the revolving rollers 11,12,13,14,15,16,17,18,19 has an axle 21, upon which spikes 12 in form of thread-formed elements are protruding.
  • the spikes 12 are established with a size and a mutual distance, which makes it possible to allow for a passage in-between for corresponding spikes 12 on a neighbouring revolving roller.
  • the revolving spike rollers are in the embodiment shown in fig. 1 placed so that the outer ends of the spikes describe circles that do not overlap each other but can within the scope of the invention also be meshing like toothed gear or touch each other during the rotation.
  • the fibres 9 are supplied to the forming head 1 via inlets 6. Said fibres will comprise agglomerates, lumps and/or shadows and when these comes into contact with the spikes 12, the agglomerates, lumps and/or shadows will be disintegrated or shred in order to ensure an even distribution of fibres 9 in the product 10 formed on the forming wire 8.
  • Fibres are supplied in an airflow to the first distribution unit 2 via an inlet 6.
  • the airflow can be created by means of transport blowers, which are linked with pipes that lead to the distribution unit, but other ways of obtaining the airflow known to the person skilled in the art are within the scope of protection.
  • fibres are primarily led in from each side of the first distribution unit 2, but fibres could also be feed to the distribution unit by means of more inlet pipes on each side of said distribution unit or to several of the distribution units. It is hereby possible to vary the capacity of the forming head by opening and closing the inlet pipes.
  • the fibres can be introduced to the distribution unit in question by blowing them into said distribution unit. This will ensure, that the fibres have a substantial velocity upon introduction to the unit, which provides that large concentrations variations throughout the forming head will be reduced or even eliminated, ensuring a more uniform distribution of powder to the web.
  • the topmost first distribution unit 2 may or may not have a detachable lid 23 to allow inspection and maintenance of the forming head, and to provide the possibility of admitting false air so that a negative pressure does not build up in the forming head and obstructs the continuous flow towards the forming wire obtained by means of the suction unit.
  • the lid 23 has an air inlet opening 24 for admitting the false air.
  • the opening may be provided in the lid 23 or any other suitable site on the forming head, e.g. in the axial side of the first 2 and/or subsequent distribution unit, as well as more openings may be provided and favourable.
  • the uniform distribution is furthermore increased as the revolving rollers retain fibres before they are gradually sucked down via the vacuum from the suction unit to the forming wire.
  • the revolving rollers works as a kind of buffer zone, ensuring, that the fibres do not fall directly onto the forming wire.
  • Fibres or other product which are to be part of the final web could also be are added to several of the distribution steps of the forming head according to the invention, increasing the capacity of the forming head.
  • the fibre material comprising the agglomerates, lumps and/or shadows which requires the highest impact force can be feed to the first distribution step 2, and the fibre material which requires the lowest impact force to the forth distribution unit 5.
  • Fig. 2 shows a schematic side view, partly sectionally, of the forming head shown in fig. 1 .
  • a partial section is shown for schematically illustrating the revolving rollers 11,12,13,14,15,16,17,18,19 and the left side of the picture shows the engines 20.
  • the first distribution unit 2 comprises one revolving roller 11 having spikes 12, which substantially covers the entire area of the distribution unit.
  • the second distribution unit 3 and the third distribution unit 4 where the two revolving rollers 12, 13, and the one revolving roller 14 respectively substantially covers the entire area of the respective distribution units.
  • the forth distribution unit 5 has five revolving rollers 15, 16, 17, 18, 19, placed in a substantially horizontal plane parallel to the forming wire 8. These revolving rollers will cover the entire bottom of the forth distribution unit 5, through which the fibre material will be released to the forming wire. Since the spikes partly will retain the fibres against the effect from the suction of the suction unit the cloud of fibres, which has been formed inside the forming box of single fibres are split up and mixed in the air stream, are transferred down onto the underlying wire by application of the revolving spike rollers.
  • Fig. 3 shows a schematic side view of a forth distribution unit 5, according to the invention wherein the spikes 22 on the revolving rollers 15,16,17,18,19 are be placed so that the outer ends 23 of the spikes describe circles that do not overlap each other.
  • Fig. 4 shows a different embodiment of the forth distribution unit 5, according to the invention to the invention described, wherein the spikes 22 on the revolving rollers 15,16,17,18,19 are be placed so that the outer ends 23 of the spikes describe circles that do overlap each other. As is clearly shown on the figure two adjacent spikes will engage with each other like toothed wheels.
  • the embodiment shown in fig. 3 has the advantage that the revolving rollers 15,16,17,18,19 can be placed closer to each other, whereby the fibres can be influenced by more than one spike 12 at a time, providing a higher impact force on the agglomerates, lumps and/or shadows, enabling a better disintegration.
EP08150185A 2008-01-11 2008-01-11 Ein Formkopf zum trockenen Legen eines Faserstoffs Withdrawn EP2078769A1 (de)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP08150185A EP2078769A1 (de) 2008-01-11 2008-01-11 Ein Formkopf zum trockenen Legen eines Faserstoffs
PCT/EP2009/050273 WO2009087236A1 (en) 2008-01-11 2009-01-12 A forming head for dry forming a fibrous web
US12/812,346 US20100283176A1 (en) 2008-01-11 2009-01-12 forming head for dry forming a fibrous web
CA2711808A CA2711808A1 (en) 2008-01-11 2009-01-12 A forming head for dry forming a fibrous web
NZ587277A NZ587277A (en) 2008-01-11 2009-01-12 Modular forming head for use in a plant producting a fibrous paper web
DK09700432.9T DK2238281T3 (da) 2008-01-11 2009-01-12 Formingshoved til tørformning af fiberbane
AT09700432T ATE535634T1 (de) 2008-01-11 2009-01-12 Formkopf zum trockenformen einer faserbahn
AU2009203705A AU2009203705A1 (en) 2008-01-11 2009-01-12 A forming head for dry forming a fibrous web
CN2009801032115A CN101925697B (zh) 2008-01-11 2009-01-12 用于纤维网干成型的成型封头
PL09700432T PL2238281T3 (pl) 2008-01-11 2009-01-12 Formująca głowica do formowania na sucho włóknistej tkaniny
BRPI0905731-5A BRPI0905731A2 (pt) 2008-01-11 2009-01-12 "cabeça de formação para a formação a seco de uma rede fibrosa, unidade para a produção de uma rede fibrosa e método para a produção a seco de uma rede fibrosa"
EP09700432A EP2238281B1 (de) 2008-01-11 2009-01-12 Formkopf zum trockenformen einer faserbahn
RU2010132248/12A RU2502837C2 (ru) 2008-01-11 2009-01-12 Формовочная головка для сухого формования волокнистого полотна
KR1020107017588A KR20100116185A (ko) 2008-01-11 2009-01-12 섬유 웹을 건식 성형하는 성형 헤드
ZA2010/05680A ZA201005680B (en) 2008-01-11 2010-08-10 A forming head for dry forming a fibrous web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08150185A EP2078769A1 (de) 2008-01-11 2008-01-11 Ein Formkopf zum trockenen Legen eines Faserstoffs

Publications (1)

Publication Number Publication Date
EP2078769A1 true EP2078769A1 (de) 2009-07-15

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP08150185A Withdrawn EP2078769A1 (de) 2008-01-11 2008-01-11 Ein Formkopf zum trockenen Legen eines Faserstoffs
EP09700432A Active EP2238281B1 (de) 2008-01-11 2009-01-12 Formkopf zum trockenformen einer faserbahn

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09700432A Active EP2238281B1 (de) 2008-01-11 2009-01-12 Formkopf zum trockenformen einer faserbahn

Country Status (14)

Country Link
US (1) US20100283176A1 (de)
EP (2) EP2078769A1 (de)
KR (1) KR20100116185A (de)
CN (1) CN101925697B (de)
AT (1) ATE535634T1 (de)
AU (1) AU2009203705A1 (de)
BR (1) BRPI0905731A2 (de)
CA (1) CA2711808A1 (de)
DK (1) DK2238281T3 (de)
NZ (1) NZ587277A (de)
PL (1) PL2238281T3 (de)
RU (1) RU2502837C2 (de)
WO (1) WO2009087236A1 (de)
ZA (1) ZA201005680B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2799607A1 (de) * 2013-05-03 2014-11-05 Formfiber Denmark ApS Verfahren und Vorrichtung zum Trockenformen eines Faserprodukts
WO2020253927A1 (en) 2019-06-20 2020-12-24 Advance Nonwoven A/S Dry forming plant and method for dry forming a fibrous tissue using such dry forming plant

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2078769A1 (de) * 2008-01-11 2009-07-15 Portico Ldt. Ein Formkopf zum trockenen Legen eines Faserstoffs
CA2777244C (en) 2009-10-21 2018-01-09 3M Innovative Properties Company Porous supported articles and methods of making
US8343400B2 (en) 2010-04-13 2013-01-01 3M Innovative Properties Company Methods of making inorganic fiber webs
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DK2238281T3 (da) 2012-03-12
AU2009203705A1 (en) 2009-07-16
RU2502837C2 (ru) 2013-12-27
ZA201005680B (en) 2011-04-28
RU2010132248A (ru) 2012-02-20
PL2238281T3 (pl) 2012-04-30
EP2238281A1 (de) 2010-10-13
US20100283176A1 (en) 2010-11-11
KR20100116185A (ko) 2010-10-29
CN101925697A (zh) 2010-12-22
WO2009087236A1 (en) 2009-07-16
NZ587277A (en) 2011-12-22
CA2711808A1 (en) 2009-07-16
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BRPI0905731A2 (pt) 2015-07-14
EP2238281B1 (de) 2011-11-30

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