EP2716813B1 - Toile pour machine à papier - Google Patents

Toile pour machine à papier Download PDF

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Publication number
EP2716813B1
EP2716813B1 EP13180585.5A EP13180585A EP2716813B1 EP 2716813 B1 EP2716813 B1 EP 2716813B1 EP 13180585 A EP13180585 A EP 13180585A EP 2716813 B1 EP2716813 B1 EP 2716813B1
Authority
EP
European Patent Office
Prior art keywords
threads
paper machine
bioplastic
bio
machine belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13180585.5A
Other languages
German (de)
English (en)
Other versions
EP2716813A1 (fr
Inventor
Rex Barrett
Alister John Dr. Rigby
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.)
Heimbach GmbH and Co KG
Original Assignee
Heimbach GmbH and Co KG
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 Heimbach GmbH and Co KG filed Critical Heimbach GmbH and Co KG
Publication of EP2716813A1 publication Critical patent/EP2716813A1/fr
Application granted granted Critical
Publication of EP2716813B1 publication Critical patent/EP2716813B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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

Definitions

  • the invention relates to a papermaking belt.
  • Papermaking belts are endless or seam-finished long-length and wide-width fabrics which are adapted in design and choice of materials to the specific requirements of a paper machine.
  • the paper machine belts circulate in the paper machine and thereby support the paper web forming in the paper machine as it passes through the paper machine and thereby facilitate and promote the dewatering process. It can be distinguished according to their location three basic types of paper machine belts.
  • the Formierpartie single or multi-ply fabrics are used, on which the paper pulp is applied so that forms a paper web. Their drainage takes place under the influence of gravity and by the action of suction boxes applied vacuum through the forming fabric. Forming screens must therefore be very permeable on the one hand and on the other hand have good fiber retention on the outside.
  • the press section the paper web is taken over by press felts and passed through roller presses, the liquid still contained in the paper web being pressed out under the pressure of a press and is pushed through the press felt. Press felts basically have a carrier in the form of a thread system onto which one or more Fiber layers are pinned.
  • the thread system may be a woven fabric, knitted fabric or a thread scrim. Also known are combinations of such thread systems.
  • the press section is followed by the dryer section, in which the paper web is transferred to drying screens, which guide the paper web over hot rolls. The drainage takes place here thermally. Dryers are usually made of an open fabric or a wire link belt (to the genus: EP 0 171 891 A1 . EP 0 472 072 A1 and EP 0 763 623 B1 ).
  • shoe press belts which are made of a carrier, consisting for example of a fabric or a scrim, and an applied thereon, impermeable polymer layer.
  • papermaking belts have been manufactured exclusively from plastics based on fossil fuels, such as polyethylene, polypropylene, polyamide, polyester, polyethylene terephthalate, polyether ether ketone, and the like.
  • plastics such as polyethylene, polypropylene, polyamide, polyester, polyethylene terephthalate, polyether ether ketone, and the like.
  • the amount of consumption of such plastics is quite considerable, since paper machine belts have only a lifetime of a few months due to the unfavorable environmental conditions in the paper machine and then have to be replaced by new belts.
  • the fossil raw materials used for polymer plastics in particular the petrochemical raw materials such as mineral oil, are running out. Since mineral oil for the production of fuels can not yet be replaced, there is a general need to conserve mineral oil deposits as far as possible and to reserve them for those uses for which they are still indispensable.
  • a papermaking belt which contains solid bodies which at least partially consist of a biodegradable material, in particular at least one biodegradable polymer.
  • the purpose of this measure is to generate a biodegradation process during the life of the strip to compensate for added or degraded void volume.
  • warp or weft threads, filling threads, filaments, yarns and threads are also considered as solid bodies.
  • the invention has for its object to provide for papermaking belts materials that are used to replace the previously used for paper machine belts, based on petrochemical raw materials plastics.
  • the papermaking belt has or consists of a thread system with threads, wherein a part of the threads or all threads partially or entirely consist of a bioplastic, and wherein the bioplastic is not biodegradable and using one or more renewable Raw materials, especially vegetable raw materials, is produced.
  • a contribution to the conservation of fossil resources is made.
  • bioplastics are less problematic to landfill and their material is largely recoverable for re-use.
  • biopolymers are particularly suitable for use in the paper machine.
  • plastics that are based on starch, especially thermoplastic starch.
  • the raw material for starch can be corn, wheat, potato or tapioca.
  • a water-resistant starch plastic should be used, as it is, for example, from the EP 0 596 437 A2 .
  • WO 02/051284 A2 or WO 96/19599 A1 results.
  • Another raw material is cellulose, which is further processed, for example, by esterification.
  • cellulosic polymers are the JP 2009-138022 A1 , of the JP 2003-082160 A1 , of the WO 2011/097700 A1 .
  • JP 2004-010844 JP 2004-131670 A1 , of the JP 2003-335898 A1 and the CN 101 492 837 A1 refer to.
  • polylactic acid also called polylactic acid (PLA)
  • PLA polylactic acid
  • PDO 1,3-propanediol
  • PTT polytrimethylene terephthalate
  • bio-based polyamide PA
  • PHA polyhydroxyalkanoate
  • biopolymers are polyvinyl chloride (PVC) from bio-based ethene or ethyne, bio-based polybutylene terephthalate (PBT), eg mentioned in US Pat US 2010/0168371 A1 and the WO 2010/078328 A2 , Polyphenylene sulfide (PPS), polyethylene terephthalate (PET), for example described in the WO 2010/101698 A2 , of the CN 101525416 A1 , of the WO 2010/078328 A2 , of the US 2010/0168371 A1 and the WO 2009/120457 A2 Polyethylene co-isosorbide terephthalate polymer (PEIT), 1,3-propanediol-based polyester, mentioned for example in US Pat US 2010/0168371 A1 .
  • PVC polyvinyl chloride
  • PBT polybutylene terephthalate
  • PPS polyphenylene sulfide
  • PET polyethylene
  • WO 2010/078328 A2 and the WO 2008/088501 A1 as well as polyurethane (PUR), which is based on bio-based polyols and bio-based isocyanates.
  • PUR polyurethane
  • the prior art documents cited are incorporated herein by reference in their entirety. This applies in particular to the manufacturing processes described in the publications and also to the combinations with other materials and raw materials. It is understood that the aforementioned bioplastics or raw materials - where possible - for each other or - if required by the requirements - can be mixed with the known, mineral oil-based plastics, for example, to form compounds or blends.
  • the thread system can be formed as a woven, knitted fabric or scrim, or as a wire link band and combinations thereof.
  • threads may be present, which are formed as monofilaments - including wires - and / or as multifilaments or threads.
  • both fibers of bioplastics and fibers of mineral oil-based plastics can be used.
  • the thread system may also have multiple layers, wherein at least one layer contains or consists of threads that consist partially or entirely of a bioplastic.
  • combinations of bioplastic and petrochemical plastics are possible by, for example, the one layer of a bioplastic and the other layer are made of a petrochemical plastic or both layers of a combination of both types of plastics. If the environmental conditions in the paper machine allow it, both layers should be one for each be made suitable bioplastics in order to dispense as much as possible on petrochemical plastics.
  • a layer of the thread system as a woven or knitted fabric and a further layer as a scrim may be formed, in which the threads are superimposed and not interwoven or forfeited.
  • threads may be present in the thread system, which consist partly of the bioplastic and partly of a petrochemical plastic by both plastics are mixed as a compound or blend and / or a part of the threads of bioplastic and another part of petrochemical plastic are made. This can be done, for example, in the form that the threads are formed as core-sheath threads and that the core of the bioplastic and the shell of the petrochemical plastic or vice versa are made.
  • threads may also be present which are designed as multifilament threads and / or twines, wherein a part of the filaments may consist of the bioplastic and a part of the filaments of the petrochemical plastic.
  • the paper machine belt is provided with a coating and the coating consists partially or entirely of a bioplastic, for example one of the bioplastics described in more detail above.
  • the papermaking belt can also be provided with a fiber layer, wherein the fiber layer consists partly or entirely of a bioplastic.
  • the paper machine belt described above may preferably be formed as a forming fabric, press felt or dryer fabric.

Landscapes

  • Paper (AREA)
  • Woven Fabrics (AREA)

Claims (10)

  1. Bande pour machine à papier qui présente un système de fils comprenant des fils ou qui en est constitué, une partie des fils ou tous les fils étant constitués en partie ou entièrement d'un bioplastique, et le bioplastique étant non biodégradable et étant fabriqué en utilisant une ou plusieurs matières premières renouvelables, notamment des matières premières végétales.
  2. Bande pour machine à papier selon la revendication 1, caractérisée en ce que le bioplastique ou sa matière première est sélectionné dans le groupe constitué d'amidon, de polymère cellulosique, d'acide polylactide (PLA), de polytriméthylène téréphthalate (PTT), de propane 1,3-diol (PDO) à base biologique, de polyamide (PA) à base biologique, de polyhydroxyalcanoate (PHA), de polyéthylène (PE) à base biologique, de chlorure de polyvinyle (PVC) à base biologique d'éthylène ou d'acétylène, de polybutylène téréphtalate (PBT) à base biologique, de polysulfure d'éthylène (PPS) à base biologique, de polytéréphtalate d'étylène (PET) à base biologique, de polyéthylène-co-isosorbide téréphtalate (PEIT) à base biologique, de polyuréthanne (PUR) à base biologique de polyol et/ou d'isocyanate à base biologique.
  3. Bande pour machine à papier selon la revendication 1 ou 2, caractérisée en ce que le système de fils forme un ou plusieurs tissus, tissus à mailles ou assemblages de fils ou des combinaisons de ceux-ci et/ou une bande à maillons de fils.
  4. Bande pour machine à papier selon l'une quelconque des revendications 1 à 3, caractérisée en ce que des fils sont présents dans le système de fils, lesquels sont réalisés comme monofilaments et/ou comme multifilaments.
  5. Bande pour machine à papier selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le système de fils présente plusieurs couches et en ce qu'au moins une couche contient des fils ou en est constituée, lesquels sont constitués en partie ou entièrement d'un bioplastique.
  6. Bande pour machine à papier selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le système de fils présente plusieurs couches et en ce qu'au moins une couche contient des fils, lesquels sont constitués en partie ou entièrement d'une matière plastique pétrochimique.
  7. Bande pour machine à papier selon la revendication 5 ou 6, caractérisée en ce qu'une couche du système de fils est réalisée comme tissu et en ce qu'une autre couche est réalisée comme assemblage de fils.
  8. Bande pour machine à papier selon l'une quelconque des revendications 1 à 7, caractérisée en ce que dans le système de fils, des fils sont présents, lesquels sont constitués en partie de bioplastique et en partie d'une matière plastique pétrochimique.
  9. Bande pour machine à papier selon la revendication 5 ou 6, caractérisée en ce que dans le système de fils, les fils sont réalisés comme fils à âme et enveloppe, l'âme étant constituée du bioplastique et l'enveloppe étant constituée de la matière plastique pétrochimique ou inversement, ou en ce que dans le système de fils, des fils sont présents, lesquels sont réalisés comme fils multifilaments ou fils retors, une partie des filaments étant constituée du bioplastique et une partie des filaments étant constituée de la matière plastique pétrochimique.
  10. Bande pour machine à papier selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la bande pour machine à papier est munie d'un revêtement et en ce que le revêtement est constitué en partie ou entièrement d'un bioplastique, et/ou en ce que la bande pour machine à papier est munie de couche de fibres et en ce que la couche de fibres est constituée en partie ou entièrement d'un bioplastique.
EP13180585.5A 2012-10-08 2013-08-15 Toile pour machine à papier Active EP2716813B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012103846U DE202012103846U1 (de) 2012-10-08 2012-10-08 Papiermaschinenband

Publications (2)

Publication Number Publication Date
EP2716813A1 EP2716813A1 (fr) 2014-04-09
EP2716813B1 true EP2716813B1 (fr) 2017-05-03

Family

ID=47228879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13180585.5A Active EP2716813B1 (fr) 2012-10-08 2013-08-15 Toile pour machine à papier

Country Status (6)

Country Link
US (1) US20140096928A1 (fr)
EP (1) EP2716813B1 (fr)
CN (1) CN103710791A (fr)
DE (1) DE202012103846U1 (fr)
ES (1) ES2635611T3 (fr)
PT (1) PT2716813T (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021101509U1 (de) * 2021-03-23 2021-07-06 Heimbach Gmbh Industrielles Textil und Verwendung
FI20215999A1 (en) * 2021-09-24 2023-03-25 Valmet Technologies Inc Press felt
FI20216278A1 (en) * 2021-12-15 2023-06-16 Valmet Technologies Inc Yarn

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DE4026196A1 (de) 1990-08-18 1992-02-20 Heimbach Gmbh Thomas Josef Sieb zur anwendung bei der papierfabrikation
DE4237535C2 (de) 1992-11-06 2000-05-25 Biotec Biolog Naturverpack Biologisch abbaubare Polymermischung, ein Verfahren und eine Folie
US6218321B1 (en) 1994-12-22 2001-04-17 Biotec Biologische Naturverpackungen Gmbh Biodegradable fibers manufactured from thermoplastic starch and textile products and other articles manufactured from such fibers
DE19534486C1 (de) 1995-09-16 1997-03-27 Heimbach Gmbh Thomas Josef Gliederband insbesondere für Papiermaschinen
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Also Published As

Publication number Publication date
US20140096928A1 (en) 2014-04-10
CN103710791A (zh) 2014-04-09
PT2716813T (pt) 2017-05-30
EP2716813A1 (fr) 2014-04-09
ES2635611T3 (es) 2017-10-04
DE202012103846U1 (de) 2012-10-25

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