CN1396339A - Press belt with seaming on laminated base fibric for papermaking machine - Google Patents
Press belt with seaming on laminated base fibric for papermaking machine Download PDFInfo
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- CN1396339A CN1396339A CN02128612A CN02128612A CN1396339A CN 1396339 A CN1396339 A CN 1396339A CN 02128612 A CN02128612 A CN 02128612A CN 02128612 A CN02128612 A CN 02128612A CN 1396339 A CN1396339 A CN 1396339A
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- 238000004826 seaming Methods 0.000 title 1
- 239000004744 fabric Substances 0.000 claims abstract description 201
- 239000000758 substrate Substances 0.000 claims description 32
- 230000008018 melting Effects 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
- 239000004677 Nylon Substances 0.000 claims description 11
- 229920001778 nylon Polymers 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004687 Nylon copolymer Substances 0.000 claims 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 claims 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 claims 1
- 239000000289 melt material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 16
- 238000009941 weaving Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 4
- 238000009954 braiding Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 238000009958 sewing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Images
Classifications
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- 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D3/00—Woven fabrics characterised by their shape
- D03D3/04—Endless fabrics
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Woven Fabrics (AREA)
Abstract
A press felt that can have a reduced tendency to fray at the seam cut includes: a paper side batt layer; a machine side batt layer; and a base fabric layer sandwiched between the paper side batt layer and the machine side batt layer. The base fabric layer comprises a first fabric and a second fabric. The first fabric includes machine direction yarns and cross machine direction yarns interwoven with the machine direction yarns. The first fabric has first and second ends with loops, wherein the loops of the first end are interdigitated with the loops of the second end, and the loops of said first and second ends receive a pin to form the first fabric into an endless belt having a seam. The second fabric is formed into an endless belt overlying the first fabric and includes machine direction yarns and cross machine direction yarns interwoven with the machine direction yarns, wherein the machine direction yarns are formed of a low melt material. In this configuration, the low melt machine direction yarns of the second fabric may have a reduced tendency to fray at the seam during prolonged operation.
Description
Technical field
The present invention relates in general to papermaking, specifically, the present invention relates to employed fabric in the paper-making process.
Background technology
In traditional fourdrinier machine paper-making process, the water slurry of cellulose fibre (known paper pulp) or suspended substance are transported to the top of the upper end of the endless belt of moving of being made by non-woven silk screen (woven wire) and/or synthetic material between two or more rollers.This endless belt is commonly referred to as " forming net ", provides papermaking surface on its upper surface of upper end, and use as filter on this surface, and the aqueous medium of paper pulp is separated with cellulose fibre, therefore forms wet paper web.Utilizing gravity or be used in combination suction box on one or more lower surfaces (equipment side just) that are positioned at forming net upper end, is that known osculum is discharged aqueous medium by the mesh on the forming net.
Leave after the shaped region, paper web is transported to the press section (press portion) of paper machine, at described press section, paper web is by the nip between one or more pairs of pressure rollers that fabric covered that are commonly referred to as " expelling belt " (" press felt " (pressfelt)) by another kind.From the pressure of described pressure roller with moisture removal remaining in the paper web; Usually utilize " milled cloth (the batt) " layer on the expelling belt, strengthen the discharge of moisture.Then paper sheet delivery is removed moisture content further to the arid region.After the drying, described paper web will be by secondary operations and packing.
Expelling belt generally includes one or more layers substrate fabric layer; Formed by " plain weave " (flat woven) after these substrate fabric layers can be woven in the endless belt, perhaps can be woven into ring form.Usually, preferentially select plain weave technology, because compare with annular weaving technology, plain weave technology cost is low and more general usually.Under many circumstances, expelling belt is cut off in the horizontal and reconnects, so that be reduced at the installation on the paper machine, at this moment, some advantages of annular weaving (for example not having seam in the fabric) are lost.
Certainly, the substrate fabric layer being carried out plain weave need connect and circularize band.This joint should adopt this kind mode, and they have good intensity, can resist great load, temperature and abrasive conditions that expelling belt bears, can not cause the expelling belt surface of seam top to cause indentation inadequately on paper web.A kind of method of popular connection expelling belt substrate fabric is to form ring with machine-direction yarn on each end of substrate fabric.For the substrate fabric that plain weave is become forms the endless belt, the end of described fabric is adjacent to each other, each on the end encircles with interleaved mode between two rings of the other end.To sell (making by multifilament polymer fiber bundle usually) and insert all rings, to connect the end.After being connected to the milled cloth layer on this underlayment by sewing or alternate manner, in the seam position, the milled cloth layer is cut, then pin to be extracted, the expelling belt after the completion is transported to the paper mill.When the paper mill, by expelling belt is placed on the paper machine, expelling belt is installed, then another multifilament pin (having more elasticity usually) is inserted described ring.The application people is U.S. Pat 4,764,417 and the US4 of Gulya, 737,241, the application people be people's such as Lilja US4,601,785 and apply for that the people is the US5 of Rydin, 476,123 have introduced such seam, and the content of above-mentioned patent is incorporated into the present patent application as a reference.
In some expelling belts, the substrate fabric layer self comprises many tissue layer (" lamination " tissue layer just).For example a kind of expelling belt can comprise " bilayer " fabric (just upper and lower two groups of machine-direction yarns and at least one group interweave just known " bilayer " fabric across machine-direction yarn) and the woven of fine mesh (just only have one group of machine-direction yarn and a group across machine-direction yarn) more.This combination makes expelling belt have good intensity and durable balance, has minimum mark simultaneously relatively.Usually form expelling belt in the following manner: plain weave two-layer fabric, annular weaving woven, connect two-layer fabric with pin as mentioned above, woven is covered on the two-layer fabric, milled cloth and two tissue layer is sewn together to form machine side milled cloth and paper side milled cloth, from two-layer fabric, extract pin, and at seam crossing, cutting opening is to form flat structures on milled cloth layer and woven.In the paper mill,, expelling belt is installed on the paper machine by new usually thinner more soft pin is inserted two-layer fabric.
The expelling belt of this structure has a significant disadvantage at least.When woven is cut, its yarn weares and teares easily in incision, therefore when being installed in expelling belt on the paper machine and operating, more the wear tip of the woven of fine mesh is disturbed because the notch portion (the normally flap of milled cloth layer material) of milled cloth layer covers substrate fabric.Because the existence of expelling belt seam uses the formed paper of this expelling belt may have inconsistent outward appearance, on paper machine, break easilier.International Application PCT/US98/19850 has introduced a kind of method that addresses this is that, and a kind of band of making across machine-direction yarn by low melting material has been discussed in this application, and this band is positioned at woven seam position.Described low melting material is softening a little during the heat setting of fabric, can bring out some cohesion of vertical direction yarn, alleviates described wearing and tearing.
Summary of the invention
In view of the above problems, the purpose of this invention is to provide a kind of expelling belt, have the trend of the thread wear reduction that makes on the substrate fabric seam with lamination substrate fabric.
Another object of the present invention provides the cheap relatively expelling belt of a kind of cost.
Another object of the present invention provides a kind of method of making this expelling belt.
The present invention can realize these and other objects, and a kind of expelling belt that can be reduced in the wearing and tearing of seam incision is provided, and this kind expelling belt comprises: paper side milled cloth layer; Machine side milled cloth layer; Be clipped in the substrate fabric layer between described machine side milled cloth layer and the paper side milled cloth layer.Described substrate fabric layer comprises first fabric and second fabric.Described first fabric comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn.Described first fabric has first and second ends of band, and the ring of the ring of described first end and second end is interlaced, and the ring of the ring of first end and second end holds a pin, so that described first fabric is formed the endless belt with seam.Described second fabric is formed the endless belt that covers on described first fabric, it comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn, described machine-direction yarn is made by low melting material.In this structure, in the operating period that prolongs, the low melting point machine-direction yarn in second fabric can have the trend that reduces the wearing and tearing of seam incision.
Another aspect of the present invention is a kind of paper machine expelling belt, and it comprises paper side milled cloth layer; Machine side milled cloth layer; With above-mentioned substrate fabric layer, described second fabric comprises the band that covers pin seam, and this band does not have the CMD yarn.This structure also can be reduced in the wearing and tearing of seam incision.
Brief description
Fig. 1 schematically illustrates the press section of the paper machine that uses expelling belt of the present invention;
Fig. 2 is the perspective view that the part of expelling belt shown in Figure 1 is cut open the amplification of part;
Fig. 3 is the sectional side view of the amplification of expelling belt shown in Figure 1;
Fig. 4 A is the fragmentary, perspective view that is in the pin seam amplification of the expelling belt shown in Figure 1 under the bonding state;
Fig. 4 B be shown in Fig. 4 A be in binding site not the time the perspective view of amplification in pin seam zone;
Fig. 5 schematically illustrates the process that is used to make expelling belt shown in Figure 1.
Preferred embodiment is introduced
Hereinafter will at length introduce the present invention in conjunction with the accompanying drawings, in described accompanying drawing, the preferred embodiments of the present invention are shown and introduce.Yet, can adopt multiple different formal description the present invention, the present invention is not subjected to the restriction of these embodiment, and the purpose that these embodiment are provided is to be convenient to introduce the present invention, and passes on spirit of the present invention to those skilled in the art.In these accompanying drawings, identical Reference numeral is represented components identical.For the ease of understanding, element and layer can be exaggerated.
Term used herein " machine direction " (MD) with " across machine direction " (CMD) represent respectively one with paper machine in the direction of paper making forming net direction of motion unanimity be parallel to forming net surface and the direction vertical with one with the direction of motion of this forming net.Above-mentioned plane knitting (flat weaving) and (endlessweaving) annular weaving all be the common practise of this area." endless belt " described here relates to makes the belt that ins all sorts of ways and make.
With reference now to accompanying drawing,, in Fig. 1, represents the paper machine press section with Reference numeral 10.Press section 10 comprises and is set up and operates in one group of expelling belt 14 on the roller 12.In its running, expelling belt 14 is configured to and expelling belt 14 and pressure roller 15 combinations through 15, one relative pressure rollers 17 of pressure roller, forms the nip (roll gap) between the pressure roller 15 and 17
N
In operation, paper web
PPass through pressure roller 15,17 formed nips from shaped region 16
N, at described nip
N, pressure roller 15 and 17 is to paper web
PExert pressure, this pressure with moisture from paper web
PExtrude, described moisture is absorbed by expelling belt 14.Because expelling belt 14 is transmitted around its roller group 12, therefore moisture is sent away, described expelling belt 14 is through one and a plurality of suction boxs 20.
Fig. 2 and 3 has shown the part that expelling belt 14 is exaggerated.As can see from Figure 2, expelling belt 14 comprises the substrate fabric layer 22 of lamination, and layer 22 comprises two kinds of fabrics that separate: the following tissue layer and the last tissue layer that comprises woven 36 that promptly comprise two-layer fabric 24.Two-layer fabric 24 comprise that two groups of machine-direction yarns 26 and one group and machine-direction yarn 26 interweave across machine-direction yarn 28.Adopt plain weave technology braiding two-layer fabric 24.Therefore, under the plain weave condition, two-layer fabric 24 has two free end 29a, 29b, and one of them free end (29a) comprises ring 30 (being formed by machine-direction yarn 26), and another free end (29b) comprises by machine-direction yarn 26 formed rings 32.When two-layer fabric 24 is in for example following time of annular condition shown in Fig. 2 and 3, ring 30,32 is in the form of crossing one another, and will sell 34 and insert and encircle 30,32, so that with free end 29a, the 29b of two-layer fabric 24 link together (4A with the aid of pictures and 4B).Can adopt application A is this fabric of technology plain weave that the U.S. Pat 5,476,123 of Rydin is introduced.
Those of ordinary skills are clear, the fabric that can adopt other type is with the mode of the two-layer fabric 24 following tissue layer as substrate fabric layer 22, comprises woven, other two-layer fabric and treble cloths (just having two groups of machine-direction yarns and two groups of fabrics across machine direction) that is:.In fact, for example plain weave, TWILL CLOTH, satin weave or the like may be used to this tissue layer to any known weave patterns in this area.Following tissue layer does not still always have the mesh more coarse than last tissue layer usually, and the mesh of preferably descending tissue layer is that about 30～50 machine-direction yarns of per inch, 50～100 are across machine-direction yarn.At free end 29a, 29b, following tissue layer should have above-mentioned ring 30,32, to guarantee utilizing pin 34 will descend tissue layer to connect into the endless belt.To those skilled in the art, the structure of ring 30,32 is well-known, here need not at length introduce; The application people is the U.S. Pat 4,737,241 and 4,764 of Gulya, and 417 have introduced typical ring and pin.
With reference to figure 2 and 3, woven 36 comprise machine-direction yarn 38 and adopt that the plain weave pattern interweaves with it across machine-direction yarn 40.Machine-direction yarn 38 is made by low melting material, and its constituent is with different across the constituent of the yarn in machine-direction yarn 40 and the two-layer fabric 24.Term described here " low melting point " means that the fusing point of this yarn is lower than the fusing point across machine-direction yarn 40 in the last tissue layer 36, under many circumstances, low than the fusing point of other yarn in the upper and lower tissue layer at least.The fusing point of low melting point yarn cans be compared to down most, and the fusing point of the machine-direction yarn 26 of tissue layer 24 hangs down 25 ℃.As this machine-direction yarn 38 adopted the fusing point material comprise nylon (comprise nylon 6, nylon 6-6, nylon 6-10, nylon 6-12 and nylon 12, and composition thereof and copolymer), polyester and copolymer, polypropylene and copolymer thereof.The fusing point of low melting material is preferably about 130 ℃～200 ℃.
Those of ordinary skills are clear, and the fabric that can adopt other type is with the mode of the woven 36 last tissue layer as bottom fabric layer 22, comprise other type woven, two-layer fabric 24 and treble cloths that is:.In fact, for example plain weave, TWILL CLOTH, satin weave or the like may be used to this tissue layer to any known weave patterns in this area.The mesh of last tissue layer can change between about 16～100 machine-direction yarns of per inch and 16～100 are across machine-direction yarn, but mesh is thinner than the mesh of following tissue layer usually.Those of ordinary skills are clear, though consideration cost factor, only use the low melting point yarn as machine-direction yarn 38, but some or all of in the woven 36 also can be used the low melting point yarn across machine-direction yarn 40, even the machine-direction yarn in the two-layer fabric 24 26 or also can use the low melting point yarn across machine-direction yarn.
Preferably woven 36 comprises not comprising and is with 42 across machine-direction yarn 40.With 42 should be pressed in two-layer fabric 24 pin 34 above.Length with 42 approximately is 2～12 inches, preferably 8 inches (just in every side of pin 34, be with 42 extend about 4 inches).Having eliminated with 42 appearance may be at the CMD yarn of seam region wearing and tearing.
Preferably employing can produce the plain weave technology with two free-ended fabrics and weave woven 36.Utilize to connect the thermal weld that technology for example forms sealing wire, woven 36 is formed endless belt 46, though also can adopt other method of attachment well known in the art.Another kind of scheme is can adopt annular technology braiding woven, so formation to be with 42 in the braiding process.
According to needed final expelling belt characteristic, employed form of yarns can change in the upper and lower tissue layer of substrate fabric layer 24.For example yarn can be multifilament, monofilament yarn, twist or add multifilament or monofilament, spun yarn or their any combination of cable.The material that forms employed " non-low melting point " yarn in the tissue layer can be those in expelling belt by normally used material, for example nylon, cotton thread, wool, polypropylene, polyester, aromatic polyamides, polyamide etc., and their mixture and copolymer.
Refer again to Fig. 2 and 3, expelling belt 14 also comprises beaujolais layer (scrim sheet) 44a, 44b and 44c.Described beaujolais layer 44a is between two-layer fabric 24 and woven 36.Beaujolais layer 44b is located immediately at two-layer fabric 24 belows.Beaujolais layer 44c is located immediately at the top of woven 36.Beaujolais layer 44a, 44b and 44c cover the seam region of expelling belt 14, extend about 4～10 inches in the every side of pin 34 formed seams usually.Usually beaujolais layer 44a, 44b and 44c comprise low melting point nylon fabric non-woven, porous.
Still with reference to figure 2 and 3, expelling belt 14 also comprises two-layer milled cloth layer: machine side milled cloth layer 50 and paper side milled cloth layer 52.Preferably utilize sewing technology, milled cloth layer 50 and 52 is connected on the substrate fabric layer 22, but can use other interconnection technique, for example thermal bonding and bonding.Introduce in the U.S. Patent application 09/359,213 of not concluding as yet and shown a kind of representational sewing technology.This sewing technology is incorporated into conduct among the present invention.
Machine side milled cloth layer 50 and paper side milled cloth layer 52 should be made by capillarity is taken away moisture from substrate fabric layer 22 material by following helping, the for example artificial fibre made such as acrylic acid, aromatic polyamides, polyester and nylon, for example natural fabric such as wool.The preferred material that is suitable for milled cloth layer 50 and 52 comprises polyamide, polyester and their mixture.Milled cloth layer 50 and 52 thickness and weight can change, though the ratio of milled cloth weight and fabric weight preferably approximately is 0.5～2.0, and preferably 1.0.In certain embodiments, can wish to have additional milled cloth layer, or omit in milled cloth layer 50 and 52 one, or two milled cloth layers all are omitted.It should be noted that below pin 34 machine side belt layer 50 has an open region 50 (Fig. 3),, the milled cloth layer is excised in this zone.
Fig. 5 has shown the manufacturing technique of expelling belt 14.At first the plain weave two-layer fabric 24, therefore form machine direction ring 30,32 at end 29a, 29b.To sell 60 (it lacks flexibility more greatly and more than above-mentioned pin 34 usually) and insert ring 30,32 (they are interlaced), link together, thereby two-layer fabric 24 will be formed an endless belt so that will encircle 30,32.Adopt plain weave or annular weaving technology to weave woven 36 separately simultaneously.If adopt plain weave technology, then utilize thermal weld technology for example to utilize heat or ultrasonic radiation that woven 36 is formed the endless belt.Woven 36 is pressed on the two-layer fabric 24, therefore do not have the 42 covering pins 34 of being with across machine-direction yarn, beaujolais layer 44a, 44b and 44c are positioned at seam region, machine side and paper side milled cloth layer 50 and 52 are sewn on the substrate fabric layer 22 and (utilize brush and tweezers to remove fiber, form open region 50a).
In case added milled cloth layer 50 and 52, softening and in the substrate fabric 22 under the softening temperature of other yarn, whole expelling belt 14 is heat-treated at the machine-direction yarn that is enough to cause make 38 by low melting material.Usually heat-treat at about 130 ℃～200 ℃.To sell 60 then and extract, and utilize blade or other cutting equipment that paper side milled cloth layer 52 and woven 36 are cut, form otch 48.Expelling belt 14 can adopt flat form by shipping to the paper mill,, when expelling belt 14 is installed on the top roll 12, will sells 34 and insert machine directional rings 30,32 in the paper mill.
Importantly, when making seam otch 48, compare with fabric of the prior art, the yarn in the woven 36 particularly machine-direction yarn 38 can have the extremely low trend that is worn.The trend that is worn of this reduction is the result who comprises low melting point machine-direction yarn 38.As mentioned above, during the heat treatment of expelling belt 14, the softening fibre deposition that causes machine-direction yarn 38 and paper side milled cloth layer 52 of low melting point machine-direction yarn 38.Therefore, even during operation, the flap 52a of contiguous seam otch 48 can arrange equably, and is not like this in the prior art.
In following non-limiting example, introduce the present invention in more detail.
Example
Make expelling belt according to following parameter.
| The MD yarn | The CMD yarn | Mesh is calculated | |||
| The substrate fabric layer | Size (inch) | Material | Size (inch) | Material | |
| Double-deck | 0.015 | Nylon | 0.015 | ?40×48 | |
| Individual layer * | 0.014 | Nylon | 0.008 | ?40×24 | |
*Do not use CMD yarn braiding woven 8 inches wide be with, described band is located immediately at the top, pin seam zone of two-layer fabric.
| The milled cloth layer | Material | Weight (gram/m 2) |
| The machine side | Nylon short fibre | ????150 |
| Paper side | Nylon short fibre | ????780 |
175 ℃ of following heat treatments 3 minutes.
Obtain expelling belt thus and can successfully produce couch board (lineboard paper).
Aforementioned content is an example of the present invention, rather than limitation of the present invention.Although below embodiments of the invention are described, for a person skilled in the art, can under the prerequisite that does not deviate from spirit of the present invention and instruction, carry out various variations to embodiment.Therefore, these all variations all drop in the scope of the present invention that limits as claims.The present invention is limited by appended claim book and equivalent thereof.In claims, the term of " device adds function " is in order to cover structure described here, equivalent structures and the equivalent structure of carrying out described function.
Claims (26)
- The expelling belt of 1 one kinds of paper grade (stock)s comprises:Paper side milled cloth layer;Machine side milled cloth layer; WithBe clipped in the substrate fabric layer between described machine side milled cloth layer and the paper side milled cloth layer, described substrate fabric layer comprises first fabric and second fabric;Described first fabric comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn, described first fabric has first and second ends of band, the ring of the ring of described first end and second end is interlaced, the ring of the ring of first end and second end holds a pin, so that described first fabric is formed the endless belt with seam;Described second fabric is formed the endless belt that covers on described first fabric, it comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn, it is characterized in that: described machine-direction yarn is made by low melting material.
- 2 one kinds of expelling belts according to claim 1 is characterized in that: described second fabric comprises the band on the seam that covers described first fabric, and described band does not have across machine-direction yarn.
- 3 one kinds of expelling belts according to claim 1 is characterized in that: described paper side milled cloth layer and described machine side milled cloth layer are sewn on the described substrate fabric layer.
- 4 one kinds of expelling belts according to claim 1 is characterized in that: described first fabric comprises two-layer fabric.
- 5 one kinds of expelling belts according to claim 1 is characterized in that: described second fabric comprises woven.
- 6 one kinds of expelling belts according to claim 1 is characterized in that: select low melting material from the one group of material that comprises nylon and nylon copolymer.
- 7 one kinds of expelling belts according to claim 1 is characterized in that: described first fabric forms than the thicker mesh of second fabric.
- 8 one kinds of expelling belts according to claim 1, it is characterized in that: each in described paper survey milled cloth layer, described machine side milled cloth layer and described second fabric comprises an otch corresponding to described first fabric seam, guarantee that when extracting described pin, described expelling belt is in smooth condition.
- 9 one kinds of expelling belts according to claim 8 is characterized in that: described otch is about 30～80 degree with respect to the angle on the plane of described substrate fabric layer.
- The expelling belt of 10 1 kinds of paper grade (stock)s comprises:Paper side milled cloth layer;Machine side milled cloth layer; WithBe clipped in the substrate fabric layer between described machine side milled cloth layer and the paper survey milled cloth layer, described substrate fabric layer comprises first fabric and second fabric;Described first fabric comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn, described first fabric has first and second ends of band, the ring of the ring of described first end and second end is interlaced, the ring of the ring of first end and second end holds a pin, so that described first fabric is formed the endless belt with seam;Described second fabric is formed the endless belt that covers on described first fabric, it comprise machine-direction yarn and with described machine-direction yarn interweave across machine-direction yarn, described second fabric comprises that one covers the band of described seam, and this band does not have the CMD yarn.
- 11 1 kinds of expelling belts according to claim 10 is characterized in that: described paper side milled cloth layer and described machine side milled cloth layer are sewn on the described substrate fabric layer.
- 12 1 kinds of expelling belts according to claim 10 is characterized in that: described first fabric comprises two-layer fabric.
- 13 1 kinds of expelling belts according to claim 10 is characterized in that: described second fabric comprises woven.
- 14 1 kinds of expelling belts according to claim 10 is characterized in that: select low melting material from the one group of material that comprises nylon and nylon copolymer.
- 15 1 kinds of expelling belts according to claim 10 is characterized in that: described first fabric forms than the thicker mesh of second fabric.
- 16 1 kinds of expelling belts according to claim 10, it is characterized in that: each in described paper side milled cloth layer, described machine side milled cloth layer and described second fabric comprises an otch corresponding to described first fabric seam, guarantee that when extracting described pin, described expelling belt is in smooth condition.
- 17 1 kinds of expelling belts according to claim 16 is characterized in that: described otch is about 30～80 degree with respect to the angle on the plane of described substrate fabric layer.
- 18 1 kinds of manufacturings have the method for expelling belt of the substrate fabric layer of lamination, and this method comprises the steps:Make machine-direction yarn and be interweaved across machine-direction yarn, form first fabric, described first fabric has first and second ends of band;Make the ring of first end of described first fabric and the ring of second end be in interlaced relation;To sell and insert described ring, form first end of described first fabric of connection and the seam of second end, therefore described first fabric be formed the endless belt;Make machine-direction yarn and be interweaved across machine-direction yarn, form second fabric, described machine-direction yarn is made by low melting material;Described second fabric is connected on described first fabric;Heat described low melting point band, so that described low melting material is softening; AndCut an opening that runs through described low melting point band, this opening is corresponding to the described seam of described first fabric.
- 19 1 kinds of methods according to claim 18 is characterized in that also comprising the first milled cloth layer is covered the step that is connected on described second fabric.
- 20 1 kinds of methods according to claim 19 is characterized in that: described cutting step comprises that also the described first milled cloth layer of cutting is to form the step of seam on the first milled cloth layer.
- 21 1 kinds of methods according to claim 19 is characterized in that also comprising the second milled cloth layer is covered the step that is connected on described first tissue layer.
- 22 1 kinds of methods according to claim 21 is characterized in that: described cutting step comprises that also the described second milled cloth layer of cutting is to form the step of seam on the second milled cloth layer.
- 23 1 kinds of methods according to claim 18 is characterized in that: also be included in after the described heating steps and described cutting step before, the step that pin is extracted from described first fabric.
- 24 1 kinds of methods according to claim 18 is characterized in that: described heating steps is included in the described low melting material of heating in about 130 ℃～200 ℃ scope.
- 25 1 kinds of methods according to claim 18 is characterized in that: the described step that interweaves described second fabric comprises described second fabric of plain weave.
- 26 1 kinds of methods according to claim 18, thus it is characterized in that also comprising that described second fabric of thermal weld forms described second fabric with the end that connects described second fabric step of endless belt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88543001A | 2001-06-20 | 2001-06-20 | |
| US09/885430 | 2001-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1396339A true CN1396339A (en) | 2003-02-12 |
Family
ID=25386891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02128612A Pending CN1396339A (en) | 2001-06-20 | 2002-06-19 | Press belt with seaming on laminated base fibric for papermaking machine |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1270807B1 (en) |
| JP (1) | JP2003096685A (en) |
| KR (1) | KR20020097031A (en) |
| CN (1) | CN1396339A (en) |
| AT (1) | ATE315682T1 (en) |
| AU (1) | AU4887702A (en) |
| BR (1) | BR0202331A (en) |
| CA (1) | CA2391027A1 (en) |
| DE (1) | DE60208607D1 (en) |
| ES (1) | ES2257488T3 (en) |
| MX (1) | MXPA02006129A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1894465B (en) * | 2003-12-15 | 2010-06-09 | 阿尔巴尼国际公司 | The Pivot of the Spiral Fabric |
| CN104024501A (en) * | 2011-07-06 | 2014-09-03 | 哈伊克许可公司 | Felt for forming fiber cement articles and related methods |
| CN113785090A (en) * | 2019-05-03 | 2021-12-10 | 福伊特专利有限公司 | The use of clothing and clothing in cotton paper machines |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7229531B2 (en) * | 2004-05-12 | 2007-06-12 | Albany International Corp. | Method of seaming a multiaxial papermaking fabric to prevent yarn migration |
| US7455752B2 (en) * | 2004-07-22 | 2008-11-25 | Albany International Corp. | Semi-permeable fabrics for transfer belt and press fabric applications |
| US20060068665A1 (en) * | 2004-09-29 | 2006-03-30 | Heinz Pernegger | Seamed felt for forming fiber cement articles and related methods |
| US7384513B2 (en) * | 2004-11-11 | 2008-06-10 | Albany International Corp. | Forming fabrics |
| US12060681B2 (en) * | 2019-05-03 | 2024-08-13 | Voith Patent Gmbh | Seamed felt and use of the seamed felt in a tissue machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5897745A (en) * | 1994-06-29 | 1999-04-27 | The Procter & Gamble Company | Method of wet pressing tissue paper |
| AU9503098A (en) * | 1998-09-24 | 2000-04-10 | Weavexx Corporation | Pin seamed papermaker's press felt with low melt material band in laminated basefabric |
-
2002
- 2002-06-19 CN CN02128612A patent/CN1396339A/en active Pending
- 2002-06-19 CA CA002391027A patent/CA2391027A1/en not_active Abandoned
- 2002-06-20 AT AT02013714T patent/ATE315682T1/en not_active IP Right Cessation
- 2002-06-20 EP EP02013714A patent/EP1270807B1/en not_active Expired - Lifetime
- 2002-06-20 KR KR1020020034698A patent/KR20020097031A/en not_active Withdrawn
- 2002-06-20 MX MXPA02006129A patent/MXPA02006129A/en active IP Right Grant
- 2002-06-20 DE DE60208607T patent/DE60208607D1/en not_active Expired - Lifetime
- 2002-06-20 JP JP2002179716A patent/JP2003096685A/en active Pending
- 2002-06-20 AU AU48877/02A patent/AU4887702A/en not_active Abandoned
- 2002-06-20 ES ES02013714T patent/ES2257488T3/en not_active Expired - Lifetime
- 2002-06-20 BR BR0202331-8A patent/BR0202331A/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1894465B (en) * | 2003-12-15 | 2010-06-09 | 阿尔巴尼国际公司 | The Pivot of the Spiral Fabric |
| CN104024501A (en) * | 2011-07-06 | 2014-09-03 | 哈伊克许可公司 | Felt for forming fiber cement articles and related methods |
| CN104024501B (en) * | 2011-07-06 | 2016-08-17 | 哈伊克许可公司 | For forming felt and the correlation technique of fibre cement product |
| CN113785090A (en) * | 2019-05-03 | 2021-12-10 | 福伊特专利有限公司 | The use of clothing and clothing in cotton paper machines |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2257488T3 (en) | 2006-08-01 |
| EP1270807B1 (en) | 2006-01-11 |
| BR0202331A (en) | 2003-04-15 |
| AU4887702A (en) | 2003-01-02 |
| KR20020097031A (en) | 2002-12-31 |
| DE60208607D1 (en) | 2006-04-06 |
| EP1270807A1 (en) | 2003-01-02 |
| CA2391027A1 (en) | 2002-12-20 |
| MXPA02006129A (en) | 2003-10-06 |
| JP2003096685A (en) | 2003-04-03 |
| ATE315682T1 (en) | 2006-02-15 |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |