WO2014174410A1 - Procédé de fabrication d'un composite de bande multicouche et composite de bande multicouche - Google Patents

Procédé de fabrication d'un composite de bande multicouche et composite de bande multicouche Download PDF

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Publication number
WO2014174410A1
WO2014174410A1 PCT/IB2014/060771 IB2014060771W WO2014174410A1 WO 2014174410 A1 WO2014174410 A1 WO 2014174410A1 IB 2014060771 W IB2014060771 W IB 2014060771W WO 2014174410 A1 WO2014174410 A1 WO 2014174410A1
Authority
WO
WIPO (PCT)
Prior art keywords
ply
multiply
multiply web
natural fibers
composite
Prior art date
Application number
PCT/IB2014/060771
Other languages
English (en)
Inventor
Lars Axrup
Carl-Ola DANIELSSON
Olof Gabrielsson Seiler
Original Assignee
Stora Enso Oyj
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 Stora Enso Oyj filed Critical Stora Enso Oyj
Publication of WO2014174410A1 publication Critical patent/WO2014174410A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers

Definitions

  • the present invention relates to a method for
  • the invention further relates to a multiply web
  • US 2012090800A discloses a web-type composite which is formed from fibres and plastic.
  • the composite is formed by wet web formation from a substantially homogeneous liquid mixture which contains natural fibres, plastic particles having a diameter of less than approximately 1000 ⁇ , and an agent that improves compatibility between natural fibres and plastic particles.
  • the web-type composite can be formed and dried by using a conventional paper machine.
  • a disadvantage with this procedure is that it can be difficult to retain the plastic particles in the web.
  • Yet another disadvantage is that the surface temperature on the drying cylinders, of the paper machine, has to be kept below the softening temperature of the plastic material to avoid the plastic particles to melt and stick on to the drying cylinders.
  • An object of the present invention is to provide a new web-type composite, which eliminates or alleviates at least some of the above mentioned disadvantages of prior art .
  • natural fibers comprises wood fibers, botanical fibers, and/or their derivate or their mixtures.
  • at least part of the natural fibers is lignin free and preferably hemicellulose free.
  • plastic particles are preferably a thermoplastic.
  • the plastic may be selected from any of the group of polyethylene (PE) , polypropylene (PP) , ethylene/propylene copolymer, polycarbonate (PC) , polystyrene (PS), polyethylene terephthalate (PET), polyactic acid (PLA) , polyhydroxybutylate,
  • ABS acrylonitrile/butadiene/styrene copolymer
  • SAN styrene/acrylonitrile copolymer
  • POM polyoxymethylene
  • biodegradable thermoplastics starch-based
  • thermoplastics their derivate and their mixtures.
  • any plastic suitable for the purpose may be used.
  • the plastic particles preferably have a diameter less than 1 mm, and more preferably less than 0.5 mm in order to improve the mixture effect with the natural fibers in the process.
  • liquid mixture is a mixture which comprises liquid, polymer particles and natural fibers.
  • the liquid mixture is transported to a forming section of a paper machine to form a web, wherein the web comprising a mixture of the natural fibers and the plastic
  • the mixture further comprises a "compatibilizing agent".
  • a "compatibilizing agent” is in this context an agent which works as an adhesion agent, i.e. an agent that increases adhesion between the plastic particles and the natural fibers and is compatible and/or reactive with reactive groups of plastic and natural fibers.
  • the compatibilizing agent comprises at least one reactive group which is compatible and/or reactive with reactive groups of cellulose which is a hydrophilic agent and of a polymer which is a hydrophobic agent.
  • the compatibilizing agent may be selected from the groups maleic anhydrides, maleic acid grafted polymers, polybutadienes , polymethyl ⁇ methacrylates (PMMA) , EVA, their derivate and their mixtures.
  • a “fiber suspension” is in this context a suspension which comprises natural fibers and liquid.
  • a “multiply web” is in this context a web contain several plies, at least three plies, where the multiply web is formed in a wet web condition.
  • a "multiply web composite” is in this context a multiply web, where the liquid has been removed from the multiply web .
  • the first fiber suspension forms a first o the liquid mixture forms a second ply, and o the second fiber suspension forms a third ply, wherein the second ply is arranged between the first ply and the third ply;
  • the multiply composite is characterized in that the composite is obtained by the above mentioned method.
  • Figure 1 shows a schematic illustration of an apparatus arrangement for manufacture a multiply composite.
  • Figure 2 shows an embodiment of a head box arrangement for forming a multiply web.
  • FIG. 3 shows a cross-section of the inventive multiply web composite.
  • the apparatus arrangement in Fig. 1 comprises a mixing tank 1 for mixing a liquid mixture 10.
  • the arrangement further comprises a conventional paper machine 6, 7, 8, 9 to form a multiply web and a multiply web composite of the liquid mixture 10, a first fibre suspension 11 and a second fibre suspension 12.
  • the mixing tank 1 comprises feeding means to add natural fibres 2, plastic particles 3 and liquid 4 to the mixing tank 1.
  • the tank 1 comprises mixing means (not shown in Fig. 1) for mixing the natural fibres 2, the plastic particles 3 and the liquid 4 to form the liquid mixture 10.
  • the liquid mixture 10 is then transported to a head box section 6 of the paper machine 6, 7, 8, 9.
  • a compatibilizing agent 5 is also added to the mixing tank 1 to be mixed together with the natural fibres 2, the plastic particles 3 and the liquid 4.
  • the compatibilizing agent 5 improves the adhesion between the natural fibres 2 and the plastic particles 3.
  • alternative embodiment comprises the natural fibers 2, the plastic particles 3, the liquid 4 and the
  • the paper machine 6, 7, 8, 9 comprising a forming section 6, 7 to form a multiply web 13 from the first fibre suspension 11, the second fibre suspension 12 and the liquid mixture 10.
  • the forming section 6, 7 comprises a head box section 6 and a wire section 7.
  • the paper machine 6, 7, 8, 9 further comprises a liquid removing section 8, 9 to remove liquid from the multiply web 13 to form a multiply web composite 14.
  • the liquid removing section 8, 9 comprises a pressing section 8 and a drying section 9.
  • the first fibre suspension 11 is transported to the head box section 6 to be uniformly distributed on the wire 7 to form an outer, first ply 15.
  • the liquid mixture 10 is also transported to the head box section 6 to be
  • Fig. 2 shows an arrangement of an head box section where three head boxes 6 are arranged in line, such that, the first fibre suspension 11 forms the first ply 15 onto the wire 7, the liquid mixture 10 forms the second ply 16 onto the first ply 15 and the second fibre suspension 12 forms the third ply 17 onto the second ply 16.
  • An alternative arrangement of the head box section 6 is to use a multilayer head box (not shown in figures, but are well known in the field of papermaking) .
  • the formed multiply web 13 is transported by the wire 7 to the pressing section 8.
  • the drying section 9 comprises at least one drying cylinder 9 onto which cylinder the pressed multiply web 13 is passing.
  • the drying cylinder 9 dries the pressed multiply web and forms the multiply web composite 14.
  • the multiply web composite 14 is then suitably wounded up to the form of a roll (not shown in figures) .
  • Fig. 3 shows a cross-section of the multiply web
  • the composite 14 comprises the outer, first ply 15 comprising natural fibres 2; the middle, second ply 16 comprising a mixture of natural fibres 2 and plastic particles 3; and the outer, third ply 17
  • the natural fibres 2 in the outer plies 15, 17 may contain lignin and hemicellulose or may be free from lignin and hemicellulose. Also the natural fibres in the middle, second ply 16 may contain lignin and hemicellulose or may be free from lignin and hemicellulose.
  • the surface temperature of the drying cylinders allows the surface temperature of the drying cylinders to be as high as 200°C.
  • Another advantage is the use of multiply structures in the final production of the composite products from the multiply web composite. Compression molding or
  • the multiply web composite may comprise one or more plies arranged between the two outer plies 15, 17 and the middle ply 16 in order to give the final product desired properties.

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  • Paper (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un composite de bande multicouche. Le procédé comporte les étapes consistant à mélanger des fibres naturelles (2), des particules en matière plastique (3) et un liquide (4) pour former un mélange liquide (10) ; à transporter le mélange liquide à une section de formage (6, 7) d'une machine à papier ; à transporter une première suspension de fibres (11) à la section de formation ; à transporter une seconde suspension de fibres (12) à la section de formation ; à former une bande multicouche (13), la première suspension de fibres formant une première couche (15), le mélange liquide formant une deuxième couche (16) et la seconde suspension de fibres formant une troisième couche (17), la deuxième couche étant disposée entre la première couche et la troisième couche ; à éliminer le liquide dans la bande multicouche pour former le composite de bande multicouche, de sorte que les première et troisième couches comportent des fibres naturelles et la deuxième couche comporte des fibres naturelles et des particules en matière plastique.
PCT/IB2014/060771 2013-04-22 2014-04-16 Procédé de fabrication d'un composite de bande multicouche et composite de bande multicouche WO2014174410A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361814630P 2013-04-22 2013-04-22
US61/814,630 2013-04-22

Publications (1)

Publication Number Publication Date
WO2014174410A1 true WO2014174410A1 (fr) 2014-10-30

Family

ID=51791131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/060771 WO2014174410A1 (fr) 2013-04-22 2014-04-16 Procédé de fabrication d'un composite de bande multicouche et composite de bande multicouche

Country Status (1)

Country Link
WO (1) WO2014174410A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017006241A1 (fr) 2015-07-06 2017-01-12 Stora Enso Oyj Formation et égouttage d'un composite en utilisant une presse à double toile
EP3567149A3 (fr) * 2018-01-30 2020-01-22 Seiko Epson Corporation Appareil et procédé de fabrication de feuille

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619734A (en) * 1983-10-21 1986-10-28 Kmw Aktiebolag Sanitary paper web having high bulk, bulk softness and surface softness and method of manufacturing said web
US5989682A (en) * 1997-04-25 1999-11-23 Kimberly-Clark Worldwide, Inc. Scrim-like paper wiping product and method for making the same
US6592983B1 (en) * 1999-06-18 2003-07-15 The Procter & Gamble Company Absorbent sheet material having cut-resistant particles and methods for making the same
US20030192663A1 (en) * 2002-04-10 2003-10-16 Tyrone Cornbower High temperature paper
US20120090800A1 (en) * 2009-04-20 2012-04-19 Elastopoli Oy Composite intermediate, method for forming same, and use of the composite intermediate
WO2014080084A1 (fr) * 2012-11-22 2014-05-30 Teknologian Tutkimuskeskus Vtt Produit fibreux moulable et procédé pour sa production

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619734A (en) * 1983-10-21 1986-10-28 Kmw Aktiebolag Sanitary paper web having high bulk, bulk softness and surface softness and method of manufacturing said web
US5989682A (en) * 1997-04-25 1999-11-23 Kimberly-Clark Worldwide, Inc. Scrim-like paper wiping product and method for making the same
US6592983B1 (en) * 1999-06-18 2003-07-15 The Procter & Gamble Company Absorbent sheet material having cut-resistant particles and methods for making the same
US20030192663A1 (en) * 2002-04-10 2003-10-16 Tyrone Cornbower High temperature paper
US20120090800A1 (en) * 2009-04-20 2012-04-19 Elastopoli Oy Composite intermediate, method for forming same, and use of the composite intermediate
WO2014080084A1 (fr) * 2012-11-22 2014-05-30 Teknologian Tutkimuskeskus Vtt Produit fibreux moulable et procédé pour sa production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017006241A1 (fr) 2015-07-06 2017-01-12 Stora Enso Oyj Formation et égouttage d'un composite en utilisant une presse à double toile
EP3567149A3 (fr) * 2018-01-30 2020-01-22 Seiko Epson Corporation Appareil et procédé de fabrication de feuille
TWI720414B (zh) * 2018-01-30 2021-03-01 日商精工愛普生股份有限公司 片材製造裝置及片材製造方法

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