EP2697427A1 - Verfahren zur herstellung eines endlosmoduls für eine papiermaschinenbespannung und endlosmodul - Google Patents
Verfahren zur herstellung eines endlosmoduls für eine papiermaschinenbespannung und endlosmodulInfo
- Publication number
- EP2697427A1 EP2697427A1 EP12715647.9A EP12715647A EP2697427A1 EP 2697427 A1 EP2697427 A1 EP 2697427A1 EP 12715647 A EP12715647 A EP 12715647A EP 2697427 A1 EP2697427 A1 EP 2697427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- endless
- carrier layer
- layer
- threads
- measure
- 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- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 230000006641 stabilisation Effects 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims description 79
- 239000000463 material Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 52
- 238000011105 stabilization Methods 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 11
- 239000002657 fibrous material Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000004831 Hot glue Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 3
- 239000010410 layer Substances 0.000 description 145
- 239000004814 polyurethane Substances 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 238000005304 joining Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000003490 calendering Methods 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0054—Seams thereof
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
- D04B21/165—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads with yarns stitched through one or more layers or tows, e.g. stitch-bonded fabrics
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0036—Multi-layer screen-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/10—Seams thereof
Definitions
- the present invention relates to a method for producing a continuous module for a paper machine clothing, for example a press felt used in a press section of a paper machine.
- EP 0 394 293 B1 discloses a paper machine clothing constructed as a press felt, which has a multilayer structure.
- This multilayer structure includes a plurality of fiber material, such as.
- As felt built-up layers that are to be joined together in a needling process. Between each of these layers run parallel stabilization threads, wherein in the layered structure several stabilization thread layers may be present.
- stabilization thread layers are in the band longitudinal direction, ie the machine direction, lying side by side
- this object is achieved by a method for producing a continuous module for a papermachine fabric, in particular press felt, comprising the measures:
- Longitudinal end regions of the carrier layer are adjacent to one another and / or overlapping,
- an essential aspect of the method according to the invention is that the stabilizing threads, which in principle do not have any mutual binding, are fixed to a carrier layer that comprises these in a stitchbonding process.
- This makes it possible to fix a plurality of side by side stabilizing threads in a simple manner.
- the endless structure can be obtained in a simple manner in that longitudinal end regions of the carrier layer provided, for example, in a sheet configuration with the stabilizing yarns or a longitudinal segment separated from such a sheet configuration get connected.
- the object mentioned at the outset is achieved by a method for producing a continuous module for a papermachine clothing, comprising Activities:
- the stabilizing threads are fixed by a Nähwirk perspectives to the carrier layer.
- connection regions extend substantially transversely to the longitudinal direction of an endless module produced in this way and not in the longitudinal direction or substantially in the longitudinal direction, as is the case with endless modules produced by spiral-like or helical turns of a carrier layer ,
- the material provided for constructing the carrier layer can be provided, for example, as:
- Fiber material layer preferably needle felt or spunbonded fabric, and / or
- Foil material layer or /
- a building material for the carrier layer can be selected, for example:
- the carrier layer can be provided, for example, with two-component fibers and / or hot-melt adhesive fibers.
- bicomponent fibers are constructed with a core which is surrounded by a shell with a lower melting material.
- the hot-melt adhesive fibers are basically made of a material with a comparatively low Built up melting point. This makes it possible to stabilize the carrier layer, for example, before fixing the stabilizing threads in the stitchbonding process by heat, for example in a calendering process, by generating a material-bonding connection between the individual fibers during the melting and cooling again.
- the carrier layer can be coated with a PU dispersion or a PVA dispersion.
- PA twines and / or PU / PET core / sheath yarns can be used, in which a PU core is surrounded by a PET sheath.
- the stitchbonded yarns provided for fixing the stabilizing threads to the carrier layer can be constructed as multifilament yarns or monofilament yarns and / or from PET, PP or PA material, smooth or textured.
- a sufficiently stable fixation can be achieved if a thread count of the Nähwirkgarne in the range of 50 to 170 dtex, preferably about 80 dtex, is located.
- the stabilizing threads can be substantially in a longitudinal direction of the carrier layer or a Transverse direction of the carrier layer extending to be set to this.
- the stabilizing threads are fixed in the stitching process in the longitudinal direction of the carrier layer and carrier layer segments are joined together in their side edge regions in order to generate the endless structure, then the stabilizing threads provided on these carrier layer segments extend transversely to a band longitudinal direction of the endless structure, so that they essentially extend also have a stabilizing function. If, in such a fixation of the stabilizing threads, the endless structure is generated by joining longitudinal end regions of the carrier layer, the stabilizing threads provided on the carrier layer then extend in the band longitudinal direction of the endless structure and thus stabilize them in the band longitudinal direction.
- the stabilizing threads are fixed transversely to the longitudinal direction of the carrier layer, ie in the transverse direction, which means that they are entered as weft threads during the stitchbonding process and are incorporated into the stitches generated in the stitchbonding process, then the stabilizing threads extend when the carrier layer is in their longitudinal end regions is connected to produce the endless structure in the transverse direction of the endless structure and also generate a stabilizing function in this direction. If individual carrier layer segments are joined together in lateral edge areas thereof, the stabilizing threads introduced as weft threads extend substantially in a band longitudinal direction of the endless structure and produce a stabilizing function in this direction.
- the carrier layer segments to be interconnected to form the continuous structure in side edge regions can be provided, for example, by separating from a sheet material which essentially comprises the carrier layer with the stabilizing threads fixed thereto.
- the carrier sheet segments may be arranged with stabilizing filaments extending substantially in a longitudinal direction or transverse to a longitudinal direction of the endless module to be produced and then joined in their side edge regions, it being further advantageous if the Figs Endless structure to be summarized carrier layer segments are positioned with the same side oriented. This means that on the endless module thus produced all stabilizing threads are on one side.
- the joining of the longitudinal end regions or the side edge regions can be effected for example by sewing or / and gluing and / or welding.
- an endless structure is produced in which there is basically a structural weakening in at least one connecting region.
- at least two endless structure layers are arranged nested in one another such that the connection regions generated thereon are offset from one another in a band longitudinal direction, so that a possibly weakened region is where longitudinal end regions or side edge regions are interconnected in the band longitudinal direction of an endless module is covered by a not weakened by a connecting portion portion of another endless structure layer.
- the nested endless structure layers to be arranged in one another are preferably positioned such that their first sides face each other. It should be noted that, in principle, such a positioning of the endless structure layers is possible that their first sides are facing away from each other or in the same direction, for example, facing outward.
- the present invention relates to an endless module for a papermachine clothing, comprising at least one continuous structure layer with a carrier layer and at least on a first side of the carrier layer by stitching threads fixed thereto, in a band longitudinal direction and / or a band transverse direction of the endless structure layer extending stabilization threads.
- an endless module or the at least one endless structure layer thereof can be formed individually or in combination with the features mentioned above and explained in more detail below for the design of such a module or an endless structure layer.
- the present invention relates to a paper machine clothing with a continuous module with the structure described above.
- the present invention will be described below in detail with reference to the accompanying drawings. It shows:
- Fig. 1 in principle a representation of a portion of a carrier layer with it in a longitudinal direction of the carrier layer extending stabilizing threads;
- Fig. 2 is a summarized to an endless structure layer carrier layer with stabilizing threads provided thereon;
- Fig. 5 is a representation corresponding to FIG. 1 with transverse to a
- Fig. 6 is a representation corresponding to FIG. 2 by a
- Carrier layer of Fig. 5 generated endless structure layer.
- Fig. 1 shows a longitudinal section of a carrier layer generally designated 10, which can be used in the manner described below for producing an endless structure layer for a continuous module of a paper machine clothing.
- the carrier layer 10 may be provided, for example, as a web wound on a roll.
- stabilizing threads 14 extending in a longitudinal direction L T of the carrier layer 10 are fixed in a stitch-bonding process.
- these stitches are incorporated into the stitches 16 of the wales 18 which are thereby generated and essentially likewise extend in the longitudinal direction L T of the carrier ply 10 and thus fixed to the first side 12 of the carrier ply 10.
- the stabilizing threads 14 can be fed substantially in a warp direction when the stitchbonding process is carried out or as warp threads. It does not necessarily have, as illustrated in FIG. 1, in association with each at Nähwirk perspectives generated wales 18 a stabilizing thread 14 may be provided. Any desired sequence of wales 18 with stabilizing threads 14 and wales 18 without stabilizing threads 14 can be generated.
- the wales 18, as illustrated in FIG. 1 can be produced without mutual bonding or crosslinking in a so-called fringe lay-up.
- the stabilizing threads are introduced, for example, as so-called weft layers, that is, they extend substantially orthogonally to the wale direction.
- This arrangement is particularly advantageous when the stabilizing threads are introduced extending in the warp direction and are incorporated, for example, in the wales. Due to the cross-linking of the wales an increased stability is achieved transversely to the direction of extension of the wales.
- the carrier layer 10 with the stabilizing threads 14 attached thereto can be wound again onto a roll after the stitchbonding process has been carried out, so that it can in principle be provided again as a sheet material with a comparatively long length. Sections of the length required for further processing steps can subsequently be separated from this web material.
- FIG. 2 shows such a section 20 of the carrier layer 10 with the stabilizing threads 14 fixed thereto by the stitch-bonding process.
- the width of this section 20 essentially corresponds to the width with which the carrier layer 10 was provided.
- 22 longitudinal end portions 24, 26 of the portion 20 can be arranged immediately adjacent to each other or possibly overlapping each other to provide a recognizable in Fig. 2 endless structure.
- These longitudinal end regions 24, 26 are subsequently connected to one another, so that in principle the endless structure 22 is produced with a connection region 28 that arises in the region of the longitudinal end region 24, 26.
- the wales 18 generated in the stitchbonding process extend in a band longitudinal direction L B of the endless structure 22 or an endless module to be produced therewith.
- a weakening of the endless structure 22 is basically present in the connection region 28, and in particular also generated by the stabilization threads 14 being interrupted in this connection region 28, it is advantageous to obtain at least two such endless structures 22 in order to obtain an endless module 30 shown in FIG. 22 'nest in one another. Since the endless structure 22 lying on the outside in this interleaving must have a length slightly longer than the inner, continuous structure 22 ', the endless structure 22 of correspondingly greater length than the endless structure 22' can be provided to avoid fold regions.
- the endless structures 22, 22 ' are positioned so that their connecting regions 28, 28' are offset from one another in the band longitudinal direction L B. Since each endless structure 22, 22 'has only a single connection region 28 or 28', these two connection regions 28, 28 'can be positioned relative to each other in such a way that they have a maximum distance in the band longitudinal direction L B of half the length the endless structure layers 22, 22 'corresponds.
- the two endless structures 22, 22 ' can be positioned so that the first sides 12 and 12 ', on which the stabilizing threads 14 and 14' are provided, are facing each other.
- the stabilizing threads 14, 14 ' can be positioned in such a way that they each dive in between two stabilizing threads of the other endless structure adjacent in the transverse direction Q B of the strip. This leads to a comparatively small thickness of the endless module 30 and to a comparatively smooth surface structure on the outside or on the inside of the endless module 30.
- the two endless structures 22, 22 'to can be respectively to position oppositely oriented first sides 12 and 12 'or equally oriented first sides 12, 12'.
- FIG. 3 shows an intermediate stage in the process of the nesting of the two endless structures 22 and 22 '.
- the endless structures used in the strip transverse direction Q B are substantially completely overlapping each other.
- more than two endless structures 22, 22 ' can be used to construct such an endless module 30, or interlayers, for example of non-woven material or the like, can be inserted between such endless structures.
- the endless module 30 shown in Fig. 3 can be incorporated into a papermachine fabric as a base. On this endless module 30 then other functional layers, such as various nonwoven or felt layers can be applied to achieve the desired Entskyssanseigenshaften or marking properties on the one hand and on the running side, the desired stability properties on the other hand.
- other functional layers such as various nonwoven or felt layers can be applied to achieve the desired Entskyssanseigenshaften or marking properties on the one hand and on the running side, the desired stability properties on the other hand.
- a continuous module 30 can also be constructed with only one single endless structure 22 and can thus be incorporated into a paper machine clothing.
- FIG. 1 An alternative construction of an endless structure layer 22 is shown in FIG.
- This endless structure 22 is constructed with a plurality of carrier layer segments 32 arranged consecutively in the band longitudinal direction I_ B of the endless structure layer 22.
- these carrier sheet segments 32 are obtained by cutting portions of the previously described construction provided in a sheet configuration comprising the carrier sheet 10 and the stabilizing threads 14 thereon by stitching.
- the carrier layer segments 32 are provided with a segment length S which corresponds to the width of the endless structure layer 22 to be produced in the strip transverse direction Q B. This procedure is particularly advantageous in particular when an endless module 30 with a comparatively large width, in particular a width which is greater than that of the carrier layer 10, is to be produced.
- the carrier layer segments 32 are positioned so as to obtain the endless structure layer 22 recognizable in FIG. 4 such that side edge regions 34, 36 of mutually immediately adjacent carrier layer segments 32 lie adjacent to one another or overlapping. In these side edge areas, the carrier sheet segments 32 are then joined together to obtain the endless structure 22.
- the arrangement of the individual carrier layer segments 32 is preferably selected such that their respective first sides 12 are oriented identically, for example on the outside of the endless structure layer 22 to be produced, so that the stabilization threads 14 fixed to the carrier layer segments 32 by stitching on the same side of the Endlos Modelllage 22 come to rest.
- endless structure layers 22 which are produced with the orientation of the stabilizing threads 14 recognizable in FIG. 4 can also be nested in one another in order to obtain an endless module 30 with a plurality of endless structure layers.
- the connecting regions 38 which arise where side edge regions 34, 36 of adjacent carrier layer segments 32 are connected to one another, are offset relative to one another in the band longitudinal direction I_ B , thus bridging the connection regions 38 and thus increasing stability in the endless module 30 to reach.
- FIGS. 5 and 6 a further alternative procedure in the production of an endless structure layer 22 or an endless module 30 constructed therewith is explained.
- a backing layer 10 which is provided as an elongated in a longitudinal direction I_ T, wound, for example, on a roll of sheet material.
- wales 18 having a multiplicity of stitches 16 following one another or adjoining one another in the longitudinal direction L T are generated in the manner described above.
- the stabilizing threads 14 are introduced in this Nähwirk perspectives but not as warp threads and in the longitudinal direction L T , but as weft threads so that they extend on the support layer 10 in the transverse direction Q T.
- the stabilizing threads 14 can be introduced as so-called gunners and be incorporated into the stitches 16. Of course you have to not necessarily in all in a wale 18 consecutive stitches 16 stabilizing threads 14 are included. The number or mutual spacing of stabilizing threads 14 following one another in the longitudinal direction I_ T will also be substantially determined by the required stabilizing property.
- the carrier layer 10 combined in a stitchbonding process with the stabilizing threads 14 can be wound up again on a roll, in order subsequently to be able to separate a section 20 required for producing an endless structure 22 in a next operation.
- FIG. 6 shows such a section, wherein here too the width of the section 20 or the carrier layer 10 in the transverse direction Q T corresponds to the width of the endless module to be produced.
- the longitudinal end regions 24, 26 are positioned adjacent to one another or overlapping each other and connected to one another such that a connecting region 28 is formed in the adjoining region of the longitudinal end regions 24, 26.
- the stabilizing threads 14 are basically fixed in the transverse direction Q T extending on the carrier layer 10, they also extend in the endless structure layer 22 thus produced in the transverse direction Q B and thus produce a stabilizing effect in this direction.
- endless structure layers 22 can also be nested together to form an endless module 30, as can be seen in FIG. 3. Furthermore, it goes without saying that even if the stabilizing threads 14 are introduced as weft threads and extend substantially in the transverse direction Q T of the carrier layer 10, endless structure layers 22 of arbitrary width can be generated by separating carrier layer segments from the material provided in the web configuration and in the manner seen in Fig. 4 in side edge areas be joined together to obtain an endless structure layer. In an endless structure layer constructed in this way, the stabilizing threads then extend in the band longitudinal direction I_ B , wherein everywhere in the adjoining region of lateral edge regions a connecting region arises, these stabilizing threads extending in the band longitudinal direction I_ B are interrupted. To bridge these connection regions, two or more endless structure layers can be nested again and the connection regions thereof can be positioned offset relative to one another in the band longitudinal direction.
- endless structure layers 22 can be combined with each other to obtain an endless module 30.
- endless structure layers 22 with stabilizing threads and endless structure layers 22 extending in the strip longitudinal direction I B with stabilizing threads extending in the strip transverse direction Q B to form an endless module 30, which can then have a stabilizing property in both directions.
- the endless structure layers to be gathered in this way can be oriented with first sides facing each other so that they rest against each other even with their stabilization threads, which are substantially orthogonal to one another.
- one or more functional layers of a papermachine fabric can be fixed to such an endless module 30, for example by needling, as has been described above in various variants.
- these web-like open structures provided in a layered structure for forming an endless structure can be summarized by connecting the then remaining two longitudinal end portions of the web-like open structure in the manner described above, in order in this way Endloslage Modellen or to get an endless module.
- the carrier layer 10 may be constructed, for example, with fiber material, so be provided, for example, as a needle-punched nonwoven material or spunbonded material.
- Other nonwoven materials for example produced in a dry nonwoven method, a wet nonwoven method or a so-called melt-blow method, can be used for the carrier layer 10.
- the fineness of the fibers used to build up such fiber material is essentially determined by the desired volume or drainage properties and can be adapted to the fineness of a further fiber material layer to be determined on an endless module. This fineness can be, for example, in the range of 3 to 200 dtex, preferably 17 to 44 dtex.
- fibers for such fiber material so-called two-component fibers may be used which have a core and a core surrounding sheath of lower melting material.
- these fibers can also be constructed as hot-melt adhesive fibers with comparatively low-melting material.
- Such a fixing operation is preferably carried out before the application of the stabilizing threads.
- Such bicomponent fibers or hot melt adhesive fibers may be present in the fibrous material at a weight or volume fraction of about 2 to 20%, preferably 5 to 10%.
- the carrier layer 10 can be provided, for example, as a film material layer or membrane material layer, wherein in a film material layer when performing a stitching process by introducing the mesh openings are generated, which allow the passage of liquid, while a membrane material layer may in principle already have openings for the passage of liquid.
- the carrier layer can be used with PA material (polyamide), PU material (polyurethane), PP material (polypropylene), PET material (polyethylene tereftalate) or / and PAN material (polyacrylonitrile).
- PA material polyamide
- PU material polyurethane
- PP material polypropylene
- PET material polyethylene tereftalate
- PAN material polyacrylonitrile
- the stabilizing threads 14 for the endless structure layer 22 can be provided as PA twines, for example quadruple twisted. The use of monofilament or core-sheath yarns is also possible.
- the stabilizing threads introduced as warp threads and thus extending substantially in the longitudinal direction I_ T of the carrier layer 10 can be introduced with a thread density of approximately 50 to 110 threads per 10 cm.
- Also introduced as weft threads and thus in the transverse direction Q T of the support layer 10 extending stabilization threads can be introduced with a thread density of about 50 to 130 threads per 10 cm.
- the stitch-forming threads used to fix the stabilizing threads 14 on the carrier layer 10, with which the stitches 16 and the wales 18 are generated can be provided as multifilament yarns, for example made of PET, PP or PA material. These stitchbonded threads can be provided with a number of threads or fineness in the range of 50 to 170 dtex, preferably about 80 dtex, smooth or textured.
- Various approaches can be used to fabricate the various bond regions in the adjacent longitudinal end regions and side edge regions, respectively. Thus, the adjacent or possibly overlapping lying longitudinal end or side edge regions can be sewn together. A bonding, so the order of a subsequent curing adhesive is possible.
- the longitudinal end regions or side edge regions are connected in a material-locking manner in that the build-up material of the carrier layer 10 and optionally also of the stabilizing threads is locally melted and a mutual connection is produced in a welding process.
- an ultrasonic cutting edge can be guided along a connection region to be produced, for example, in this case Area and extending in this direction stabilizing threads can be guided.
- the areas to be joined together should be arranged substantially stress-free, to allow compensating structural shifts. Irrespective of the orientation of the stabilizing threads in the endless structure layer produced in this way, the essential connection stability in the region of the carrier layer 10 is generated.
- connection areas thus generated can then be smoothed to reduce the tendency to mark, for example, in a calendering process.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110007286 DE102011007286A1 (de) | 2011-04-13 | 2011-04-13 | Verfahren zur Herstellung eines Endlosmoduls für eine Papiermaschinenbespannung |
| PCT/EP2012/056511 WO2012140036A1 (de) | 2011-04-13 | 2012-04-11 | Verfahren zur herstellung eines endlosmoduls für eine papiermaschinenbespannung und endlosmodul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2697427A1 true EP2697427A1 (de) | 2014-02-19 |
Family
ID=45992213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12715647.9A Withdrawn EP2697427A1 (de) | 2011-04-13 | 2012-04-11 | Verfahren zur herstellung eines endlosmoduls für eine papiermaschinenbespannung und endlosmodul |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2697427A1 (de) |
| DE (1) | DE102011007286A1 (de) |
| WO (1) | WO2012140036A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781967A (en) | 1987-10-07 | 1988-11-01 | The Draper Felt Company, Inc. | Papermaker press felt |
| BRPI0916035A2 (pt) * | 2008-11-19 | 2015-11-17 | Voith Patent Gmbh | revestimento de máquina de papel e processo para sua fabricação |
| DE102008043917A1 (de) * | 2008-11-20 | 2010-05-27 | Voith Patent Gmbh | Pressfilz und Verfahren zu seiner Herstellung |
-
2011
- 2011-04-13 DE DE201110007286 patent/DE102011007286A1/de not_active Withdrawn
-
2012
- 2012-04-11 EP EP12715647.9A patent/EP2697427A1/de not_active Withdrawn
- 2012-04-11 WO PCT/EP2012/056511 patent/WO2012140036A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012140036A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011007286A1 (de) | 2012-10-18 |
| WO2012140036A1 (de) | 2012-10-18 |
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