WO2005102736A1 - Procede et systeme permettant de produire du papier decoratif et des panneaux stratifies contenant un tel papier decoratif, et plus specifiquement papier decoratif et panneaux pour recouvrir le sol, des meubles ou des surfaces de mur - Google Patents

Procede et systeme permettant de produire du papier decoratif et des panneaux stratifies contenant un tel papier decoratif, et plus specifiquement papier decoratif et panneaux pour recouvrir le sol, des meubles ou des surfaces de mur Download PDF

Info

Publication number
WO2005102736A1
WO2005102736A1 PCT/EP2005/051751 EP2005051751W WO2005102736A1 WO 2005102736 A1 WO2005102736 A1 WO 2005102736A1 EP 2005051751 W EP2005051751 W EP 2005051751W WO 2005102736 A1 WO2005102736 A1 WO 2005102736A1
Authority
WO
WIPO (PCT)
Prior art keywords
decorative paper
substrate
coating
slit
flathead
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.)
Ceased
Application number
PCT/EP2005/051751
Other languages
English (en)
Inventor
Maurizio Nasatti
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.)
Tocchio Srl
Original Assignee
Tocchio Srl
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 Tocchio Srl filed Critical Tocchio Srl
Publication of WO2005102736A1 publication Critical patent/WO2005102736A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • B44C5/0476—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper with abrasion resistant properties

Definitions

  • the present invention relates to a method and system for producing decorative paper and laminated panels incorporating such decorative paper, in particular decorative paper and panels for covering floor, furniture or wall surfaces .
  • Commonly used methods of producing decorative paper substantially comprise impregnating a paper substrate (normally fed continuously off a reel) with a polymer resin; applying a mixture of polymer resin and abrasion-resistant particles (normally corundum) to the impregnated substrate (wet or dry) ; and, finally, applying a protective layer of polymer resin, preferably containing extremely hard, mildly abrasive particles (e.g. glass spheres) .
  • the various polymer layers possibly containing particulate fillers, are coated on using various types of roller coating units . Such methods have various drawbacks.
  • flathead coating devices i.e. coating devices, in which the coating material is dispensed through a substantially rectangular feed slit elongated crosswise to the substrate and bounded by a continuous peripheral edge
  • dispensing of the polymer composition and layer thickness can be controlled extremely accurately, by the polymer composition being dispensed through a slit having a precisely defined flow section, and by regulating the amount of polymer composition dispensed by simply and precisely controlling feed pressure.
  • the same flathead coating device can also be used to apply layers of different thicknesses and widths by simply adjusting the size of the feed slit (in particular, by changing the spacer between the members of the head, as explained below) .
  • the same flathead coating device can safely be used to apply different types of layers, i.e. different polymer compositions, even with various types of particulate fillers; and one flathead coating device may be provided with respective )feed slits to simultaneously apply two or more superimposed layers.
  • Figure 1 shows a schematic view of a system in accordance with the invention
  • Figure 2 shows a schematic exploded view of a coating head forming part of the Figure 1 system
  • Figure 3 shows a section of the Figure 2 coating head assembled
  • Figure 4 shows a section of a variation of the Figure 3 coating head
  • Figure 5 shows a schematic view of a further embodiment of the system according to the invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION Number 1 in Figure 1 indicates as a whole a system for producing decorative paper and laminated panels incorporating such decorative paper, in particular decorative paper and panels for covering floor, furniture or wall surfaces.
  • System 1 comprises conveying means 2 (known and shown schematically by feed rollers 3, 4) for feeding a flexible (in particular, paper) substrate 5 in sheet or, preferably, continuous strip form through system 1; an impregnating unit 7; a first coating unit 8; and a second coating unit 9.
  • impregnating unit 7, which is known, is located upstream from coating unit 8 in the travelling direction of substrate 5 through system 1, and comprises a tank 10 containing an impregnating bath 11; and means 12 for feeding substrate 5 into tank 10 and bath 11.
  • Coating unit 8 comprises a flathead coating device 15 having at least one feed slit 16; and a guide unit 17 - defined, in the example shown, by two rollers 18, 19, between which substrate 5 is fed - for supporting a portion 20 of substrate 5 close to slit 16, with a face 21 of substrate 5 facing slit 16.
  • the portion 20 of substrate 5 facing slit 16 winds about and rests on the outer surface of roller 19.
  • Coating device 15 comprises a coating head 25 having slit 16 and fitted to an actuating system 26; slit 16 is connected by a conduit 27 to a tank 28 containing a polymer composition 29 to be applied; and a pump 30 pumps polymer composition 29 from tank 28 to slit 16.
  • Actuating system 26 (known and shown only schematically) provides for moving head 25 with respect to substrate 5 and, in particular, for adjusting the distance between slit 16 and face 21, and possibly the tilt of head 25.
  • slit 16 is substantially rectangular, is elongated crosswise to the travelling direction of substrate 5, and is bounded by a continuous peripheral edge .
  • Head 25 comprises two fixed facing members 31, 32 separated by a spacer 33.
  • Members 3tL, 32 have respective substantially flat surfaces 34, 35 parallel to and facing each other; and respective lips 36, 37 fixed with respect to each other and defined by respective front edges of surfaces 34, 35.
  • Surface 34 of member 31 has a groove 38 substantially parallel to lip 36 and connected to conduit 27 by a channel 39 formed through member 31.
  • Spacer 33 is defined by a substantially C-shaped plate having opposite surfaces 41, 42 cooperating respectively with surfaces 34, 35, comprises a central recess 43 superimposed over a portion 44 of groove 38 and located between two sides 45 extending flush with lips 36, 37, and is gripped between members 31 and 32 by means, for example, of screws (not shown) inserted inside holes 46.
  • the size of recess 43 and the thickness of spacer 33 determine the width and height of slit 16 and, therefore, the size of the layer of polymer composition 29 issuing from slit 16 and applied to substrate 5. The width and/or thickness of the applied layer can therefore be adjusted by changing spacer 33.
  • coating unit 9 is located downstream from coating unit 8, and is a conventional known roller coating unit not described in detail for the sake of simplicity.
  • coating unit 9 may also feature one or more flathead coating devices of the type described above.
  • coating unit 9 comprises two coating assemblies 51, 52 located on opposite sides of «. substrate 5 and defined by respective pairs of rollers 54, 55, between which respective polymer compositions 56, 57 are fed.
  • System 1 implementing the method according to the invention operates as follows .
  • Substrate 5 is fed into and impregnated in bath 11 of impregnating unit 7.
  • Bath 11 is preferably an aqueous solution of one or more polymer components, in particular, melamine resin or similar and/or polyvinyl alcohol .
  • the impregnated substrate 5 is then fed to coating unit 8.
  • the impregnated substrate 5 is fed wet to coating unit 8, with no drying steps in between.
  • a layer 61 of polymer composition 29 is deposited through slit 16 onto face 21 of substrate 5, and preferably comprises at least one polymer component, in particular a melamine resin or similar or polyvinyl alcohol, and a particulate filler, in particular an abrasion-resistant substance such as corundum.
  • Substrate 5 with layer 61 is fed from coating unit 8, possibly via a drier (not shown) , to coating unit 9; coating assembly 51 applies onto layer 61 a layer 62 of polymer composition 56 (preferably comprising at least one polymer component, e.g.
  • coating assembly 52 applies a layer 63 of polymer composition 57 (comprising in particular, a polymer resin, e.g. melamine resin, with no particulate fillers) onto a face 64, opposite face 21, of substrate 5.
  • polymer composition 57 comprising in particular, a polymer resin, e.g. melamine resin, with no particulate fillers
  • head 25 of coating device 15 has two or more superimposed slits for dispensing respective like or different polymer compositions .
  • head 25 again comprises members 31, 32 described with reference to Figures 2 and 3, but, in this case, member 32, like member 31, also comprises a groove 38, and a channel 39 (connected to a tank of polymer composition) ; a substantially wedge-shaped auxiliary member 66 is interposed between members 31 and 32, and has two surfaces 67, 68 facing surfaces 34, 35 of members 31, 32 respectively; and two spacers 33a, 33b are interposed between member 31 and member 66 and between member 32 and member 66 respectively, to define two slits 16a, 16b.
  • one of slits 16a, 16b dispenses, for example, a polymer composition comprising at least one polymer component, in particular a melamine resin, and a particulate filler, e.g. corundum or other abrasion- resistant substance, and the other slit dispenses a polymer composition with no particulate fillers (e.g. a melamine resin) .
  • layer 61 applied by coating device 15 is therefore defined by two superimposed layers! .applied simultaneously onto substrate 5 : a bottom first layer of polymer material containing the particulate filler, and a top second layer of polymer material only and superimposed on the first layer.
  • impregnating unit 7 is located downstream from coating unit 8 comprising flathead coating device 15.
  • substrate 5 is first coated with layer 61 (comprising polymer resin and an abrasion-resistant substance, or comprising two superimposed layers : one bottom layer of polymer resin and abrasion-resistant substance, and a top layer of polymer resin only) , and is then impregnated.

Landscapes

  • Laminated Bodies (AREA)

Abstract

L'invention concerne un système (1) permettant de produire du papier décoratif et des panneaux stratifiés contenant un tel papier décoratif, plus spécifiquement du papier décoratif et des panneaux destinés à recouvrir le sol, des meubles ou des surfaces de mur. Ce système comprend une unité de revêtement (8) permettant d'appliquer au moins une couche (61) d'une composition polymère (29) sur une face (21) d'un substrat flexible (5) sous forme de feuille ou de bande. La couche (61) est appliquée par un dispositif de revêtement à tête plate (15) possédant au moins une fente d'alimentation (16) liée par un bord périphérique continu, et à travers laquelle la composition polymère est distribuée.
PCT/EP2005/051751 2004-04-23 2005-04-20 Procede et systeme permettant de produire du papier decoratif et des panneaux stratifies contenant un tel papier decoratif, et plus specifiquement papier decoratif et panneaux pour recouvrir le sol, des meubles ou des surfaces de mur Ceased WO2005102736A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A000804 2004-04-23
ITMI20040804 ITMI20040804A1 (it) 2004-04-23 2004-04-23 Metodo ed apparecchiatura per la realizzazione di carte decorative e di pannelli laminati incorporanti tali carte decorative in particolare carte decorative e pannelli di copertura di superfici di pavimentazione mobili o pareti

Publications (1)

Publication Number Publication Date
WO2005102736A1 true WO2005102736A1 (fr) 2005-11-03

Family

ID=34964079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/051751 Ceased WO2005102736A1 (fr) 2004-04-23 2005-04-20 Procede et systeme permettant de produire du papier decoratif et des panneaux stratifies contenant un tel papier decoratif, et plus specifiquement papier decoratif et panneaux pour recouvrir le sol, des meubles ou des surfaces de mur

Country Status (2)

Country Link
IT (1) ITMI20040804A1 (fr)
WO (1) WO2005102736A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467115C1 (ru) * 2008-10-07 2012-11-20 Кайндль Декор Гмбх Устройство для пропитки полосовых материалов термоотверждаемой пропиточной смолой

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820937A (en) * 1992-06-15 1998-10-13 The Mead Corporation Process for making high abrasion overlays
DE19716466A1 (de) * 1997-04-21 1998-10-22 Bachofen & Meier Ag Verfahren und Vorrichtung zum Auftragen von Dispersionen auf eine Materialbahn
US6231670B1 (en) * 1999-01-16 2001-05-15 Vits Maschinenbau Gmbh Apparatus for impregnating and coating paper
US20040011486A1 (en) * 2002-07-17 2004-01-22 Eric Wagner Papers for use in decorative laminates and methods of making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820937A (en) * 1992-06-15 1998-10-13 The Mead Corporation Process for making high abrasion overlays
DE19716466A1 (de) * 1997-04-21 1998-10-22 Bachofen & Meier Ag Verfahren und Vorrichtung zum Auftragen von Dispersionen auf eine Materialbahn
US6231670B1 (en) * 1999-01-16 2001-05-15 Vits Maschinenbau Gmbh Apparatus for impregnating and coating paper
US20040011486A1 (en) * 2002-07-17 2004-01-22 Eric Wagner Papers for use in decorative laminates and methods of making the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467115C1 (ru) * 2008-10-07 2012-11-20 Кайндль Декор Гмбх Устройство для пропитки полосовых материалов термоотверждаемой пропиточной смолой

Also Published As

Publication number Publication date
ITMI20040804A1 (it) 2004-07-23

Similar Documents

Publication Publication Date Title
US4142010A (en) Method for applying a viscous fluid to a substrate
EP0784516B1 (fr) Procédé d'enduction à la racle à montée de liquide par tension
EP0141185B2 (fr) Enducteur
MXPA97002190A (en) Method of coating with ascending tension blade
US6146708A (en) Coating method and apparatus
RU2471569C2 (ru) Установка для нанесения покрытий
JPWO2018168234A1 (ja) ダイヘッド装置、塗布方法および積層体形成装置
WO2005102736A1 (fr) Procede et systeme permettant de produire du papier decoratif et des panneaux stratifies contenant un tel papier decoratif, et plus specifiquement papier decoratif et panneaux pour recouvrir le sol, des meubles ou des surfaces de mur
JPH09511682A (ja) ロールおよびダイ塗布方法および装置
EP0743882B1 (fr) Coucheuse a racle a courant transversal
MXPA96005132A (en) Method and coating apparatus with troq
US20080006203A1 (en) Curtain applicator
EP0825900B1 (fr) Inserts pour revetement par bandes
US9644321B2 (en) Method for coating a paper web
US20080105197A1 (en) Device for Applying a Coating Material to a Paper Web
CN206404985U (zh) 一种窄缝模具涂布机
JPH0994507A (ja) ダイコータ
US6699326B2 (en) Applicator
EP4084913B1 (fr) Revêtement par filière sur enveloppe gonflable
JPH0451904Y2 (fr)
JP2004057942A (ja) 塗布装置及び塗布方法
RU2392063C2 (ru) Устройство для нанесения покрытия, содержащего текучий покрывающий материал для гладких или структурированных поверхностей
JP2966047B2 (ja) 塗布方法
JPH0286869A (ja) 樹脂塗布装置
JPH06426A (ja) 液体塗布装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase