WO2001021892A1 - Method for processing paper strips, and paper to be impregnated with synthetic resins - Google Patents

Method for processing paper strips, and paper to be impregnated with synthetic resins Download PDF

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Publication number
WO2001021892A1
WO2001021892A1 PCT/MC2000/000001 MC0000001W WO0121892A1 WO 2001021892 A1 WO2001021892 A1 WO 2001021892A1 MC 0000001 W MC0000001 W MC 0000001W WO 0121892 A1 WO0121892 A1 WO 0121892A1
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WO
WIPO (PCT)
Prior art keywords
paper
mixture
resins
synthetic resins
drying
Prior art date
Application number
PCT/MC2000/000001
Other languages
French (fr)
Inventor
Ernst Heller
Eugen Edel
Original Assignee
Ernst Heller
Eugen Edel
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 Ernst Heller, Eugen Edel filed Critical Ernst Heller
Priority to AT00966591T priority Critical patent/ATE457044T1/en
Priority to EP00966591A priority patent/EP1322816B1/en
Priority to DE60043798T priority patent/DE60043798D1/en
Priority to AU2000276922A priority patent/AU2000276922A1/en
Publication of WO2001021892A1 publication Critical patent/WO2001021892A1/en

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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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • D21H23/72—Plural serial stages only
    • 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
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures

Definitions

  • the present invention relates to a method of treating paper webs for the manufacture of paper for impregnation with synthetic resins, comprising the following steps.
  • the invention will find its application mainly in the field of stratification stratification in high or / and low pressure of the supports such as particle boards, wood fibers, plywood or others. Papers for impregnation with synthetic resins are commonly called "Dekorpapier", a term of German origin.
  • “Dekorpapier” is understood to mean a paper intended for impregnation with synthetic resins. This paper is, after printing or not, impregnated to be stamped (laminating) on supports such as particle board, wood fiber boards, plywood or other. Such "laminate” supports are used as a replacement for wood in the furniture industry, as well as floor coverings, wall coverings and the like.
  • the invention concerns not only the paper industries for its transformation, but also those related to the application of "Dekorpapier", in particular furniture.
  • “Dekorpapiers” are frequently used which can be applied under pressure and under temperature on a support of the wood fiber particle board or plywood type. On the basis of a sheet formed from paper and optionally comprising fillers, a desired pattern is produced.
  • the material thus obtained is applied to the physical support to be covered, for example the panel of a piece of furniture.
  • the current “Dekorpapier” is therefore a paper as it is, without pretreatment.
  • This important manufacturing step requires large quantities of raw material (mixture of resins) in order to allow sufficient impregnation of the paper.
  • the present invention aims to overcome the drawbacks of the methods currently used.
  • the invention aims to significantly improve the quality of these papers and at the same time obtain a reduction in certain products used as filler in these technical papers.
  • These improvements consist mainly in obtaining a paper surface which is optimally suitable for printing, and this without preventing the paper once printed from absorbing the quantity of resin necessary for lamination on supports such as particles, wood fiber panels, plywood or other.
  • the invention makes it possible to obtain a surface different from the decor papers, thus making it possible, with the use of modified aqueous printing inks, to fix the photographic image with better fidelity.
  • these papers are obtained with the following treatment.
  • a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics and hardeners is inserted inside.
  • a second treatment follows with a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics, hardeners and pigments.
  • calendering is carried out to obtain the optimal smoothness for high-fidelity gravure printing.
  • a multi-phase treatment system for paper intended for lamination on paper support, particle board, wood fiber board, or other treated inside with a mixture of melamine-formaldehyde resins, urea formaldehyde, acrylics self-crosslinking and hardening, and then on the surface with a mixture of melamine-formaldehyde resins, urea formaldehyde, self-crosslinking acrylics, hardeners, and pigments, obtaining a high-fidelity printing result using special aqueous inks, and, at the same time, saving pigments in paper basic.
  • “Dekorpapier” obtained by the implementation of the invention allows, with a higher smoothness, a printing of higher fidelity as well as a significant saving of printing inks, in particular in aqueous inks.
  • the quantity of resins used is substantially reduced with an equivalent final result, ie identical mechanical properties (surface resistance and adhesion to supports).
  • the process for treating paper webs for the manufacture of paper for impregnation with synthetic resins comprises the following steps: insertion into the paper of a mixture based on resins; consecutively or simultaneously to the step of inserting the mixture, treatment of at least one face of the paper strip by application of a mixture based on paper drying resins; surface treatment of at least one of the faces of the paper strip by application of a resin-based mixture; paper drying.
  • insertion into the paper of a mixture based on resins consecutively or simultaneously to the step of inserting the mixture, treatment of at least one face of the paper strip by application of a mixture based on paper drying resins; surface treatment of at least one of the faces of the paper strip by application of a resin-based mixture; paper drying.
  • the strip of paper is smoothed on at least one side;
  • - one uses, for the mixture and / or for the mixture, a composition of melamine-formaldehyde, urea-formaldehyde and acrylic resins;
  • the mixtures contain at least one hardener component.
  • the invention also relates to a paper for impregnation with synthetic resins which is obtained from a strip of paper by implementing the method.
  • FIG. 1 is a block diagram illustrating the steps for carrying out the invention according to a preferred variant.
  • strips of paper is intended to mean the tablecloth initially used for the manufacture of decor paper and essentially comprising alfa cellulose and optionally fillers of the Ti0 2 type (titanium dioxide). Pigments can be added.
  • the invention firstly relates to a method of processing paper strips 1 with a view to their use for the manufacture of "Dekorpapier".
  • a strip of paper 1 undergoes a first treatment in step numbered 3 constituting an insertion into the paper of a mixture A based on resin.
  • the mixture A used is a composition of formaldehyde melamine resins and / or formaldehyde and acrylic urea, hardeners and fillers.
  • these paper strips are treated on the surface (one or two faces) with a mixture B based on resins preferentially identical to mixture A.
  • This insertion and application step can be carried out with a SIZE-PRESS (Leimpresse / press for take-off) and a “coating-coating machine”, or with a FILM-PRESS which unites the two functions.
  • a drying step 5 is then carried out by means of common means such as drying rollers, infrared rays or the like.
  • the mixture C can consist of a composition substantially equivalent to that described above for the mixture A.
  • This surface treatment can be carried out on one or both sides of the paper strip 1.
  • the smoothing undergone by the paper can be carried out in a calender or an equivalent material.

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  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention concerns a method for treating paper strips for making paper to be impregnated with synthetic resins, comprising the following steps: inserting (3) in the paper (1) a resin-based mixture (A); consecutively to or simultaneously with the insertion (3) of mixture (A), treating (4) at least one surface of the paper strip (1) by applying a resin-based mixture (B); drying (5) the paper; treating (6) the surface of at least one of the surfaces of the paper strip (1) by applying a resin-based mixture (C); drying (5) the paper. After drying and optionally glazing (7), the resulting surface provides for high fidelity printing. The invention further concerns paper to be impregnated with synthetic resins obtained by said method. The invention is useful for high pressure and/or low pressure lamination of supports such as particle boards, woodfibre boards, plywood sheets or the like.

Description

"Procédé de traitement de bandes de papier, et papier pour imprégnation par des résines synthétiques" "Process for treating paper webs, and paper for impregnation with synthetic resins"
La présente invention concerne un procédé de traitement de bandes de papier pour la fabrication de papier pour imprégnation avec des résines synthétiques, comprenant les étapes suivantes .The present invention relates to a method of treating paper webs for the manufacture of paper for impregnation with synthetic resins, comprising the following steps.
Elle concerne également un papier pour imprégnation par des résines synthétiques.It also relates to a paper for impregnation with synthetic resins.
L'invention trouvera son application principalement dans le domaine de la stratification stratification en haute ou/et basse pression des supports tels des panneaux de particules, de fibres de bois, contreplaqués ou autres. Les papiers pour l'imprégnation par des résines synthétiques sont couramment appelés « Dekorpapier », terme d'origine allemande.The invention will find its application mainly in the field of stratification stratification in high or / and low pressure of the supports such as particle boards, wood fibers, plywood or others. Papers for impregnation with synthetic resins are commonly called "Dekorpapier", a term of German origin.
On entend par « Dekorpapier » un papier destiné à l'imprégnation avec des résines synthétiques. Ce papier est, après impression ou non, imprégné pour être estampé (stratification) sur des supports tels que panneaux de particules, panneaux en fibres de bois, contreplaqués ou autre. De tels supports « stratifiés » sont utilisés en tant que remplacement du bois dans l'industrie du meuble, ainsi que des revêtements de sol, revêtements de murs et autres.“Dekorpapier” is understood to mean a paper intended for impregnation with synthetic resins. This paper is, after printing or not, impregnated to be stamped (laminating) on supports such as particle board, wood fiber boards, plywood or other. Such "laminate" supports are used as a replacement for wood in the furniture industry, as well as floor coverings, wall coverings and the like.
Par conséquent, sont concernées par l'invention, non seulement les industries du papier, pour sa transformation, mais aussi celles liées à l'application du « Dekorpapier » notamment l'ameublement.Consequently, the invention concerns not only the paper industries for its transformation, but also those related to the application of "Dekorpapier", in particular furniture.
Dans le domaine de l'ameublement, on utilise fréquemment des « Dekorpapier » applicables sous pression et sous température sur un support du type panneau de particules en fibres de bois ou encore en contre-plaqué. Sur la base de feuille constituée à partir de papier et éventuellement comprenant des charges, on réalise une impression d'un motif souhaité.In the furniture sector, “Dekorpapiers” are frequently used which can be applied under pressure and under temperature on a support of the wood fiber particle board or plywood type. On the basis of a sheet formed from paper and optionally comprising fillers, a desired pattern is produced.
Ce motif imite fréquemment l'aspect naturel du bois avec la coloration souhaitée. Suite à l'impression ou auparavant, une imprégnation est réalisée au moyen de différents mélanges chimiques à base de résines .This pattern frequently imitates the natural look of wood with the desired coloring. After printing or before, an impregnation is carried out using different chemical mixtures based on resins.
On applique le matériau ainsi obtenu sur le support physique à recouvrir, par exemple le panneau d'un meuble. Le « Dekorpapier » actuel est donc un papier tel quel, sans prétraitement .The material thus obtained is applied to the physical support to be covered, for example the panel of a piece of furniture. The current “Dekorpapier” is therefore a paper as it is, without pretreatment.
L'état de la technique en général présente plusieurs inconvénients . En premier lieu, la qualité d'impression est nettement optimisable .The state of the art in general has several drawbacks. First, the print quality is clearly optimizable.
Généralement, on réalise une impression par héliogravure par laquelle l'encre a tendance à se diffuser à l'intérieur du « Dekorpapier » à cause d'une trop grande porosité de celui-ci. Cette diffusion est nuisible à la précision du motif désiré ainsi qu'à la consommation d'encre.Generally, a gravure printing is carried out by which the ink tends to diffuse inside the "Dekorpapier" because of too great a porosity of the latter. This diffusion is detrimental to the precision of the desired pattern as well as to the consumption of ink.
On n'obtient donc actuellement que des « Dekorpapier » avec des motifs de faible résolution et nécessitant malgré tout d'importantes quantités d'encres.So we currently only get "Dekorpapier" with low resolution patterns and still requiring large quantities of inks.
Par ailleurs, les procédés actuels mettent en œuvre une étape d'imprégnation de la bande de papier avec des résines.Furthermore, current methods implement a step of impregnating the paper strip with resins.
Cette étape importante de fabrication nécessite de grandes quantités de matière première (mélange de résines) afin de permettre une imprégnation suffisante du papier.This important manufacturing step requires large quantities of raw material (mixture of resins) in order to allow sufficient impregnation of the paper.
Là encore, les fortes consommations occasionnées par les procédés actuels grèvent le coût de fabrication des « Dekorpapier » sans pour autant arriver à des propriétés mécaniques optimales du produit final. La présente invention a pour but de pallier les inconvénients des procédés actuellement utilisés.Again, the high consumption caused by current processes increases the cost of manufacturing "Dekorpapiers" without however achieving optimal mechanical properties of the final product. The present invention aims to overcome the drawbacks of the methods currently used.
Elle présente pour ce faire un procédé de traitement de bandes de papier pour la fabrication de papier pour imprégnation avec des résines synthétiques. Elle concerne également un papier pour imprégnation avec des résines synthétiques .To do this, it presents a process for treating paper strips for the manufacture of paper for impregnation with synthetic resins. It also relates to a paper for impregnation with synthetic resins.
Selon l'invention, avant les étapes classiques d'impression et d'imprégnation finale de la bande de papier, on réalise des étapes de prétraitement dont les buts et avantages sont introduits ci -après.According to the invention, before the conventional steps of printing and final impregnation of the paper strip, pretreatment steps are carried out, the aims and advantages of which are introduced below.
L'invention a pour but d'améliorer d'une manière significative la qualité de ces papiers et d'obtenir en même temps une réduction de certains produits utilisés comme charge dans ces papiers techniques. Ces améliorations consistent principalement à obtenir une surface de papier apte, de façon optimale, à l'impression, et cela sans pour autant empêcher le papier une fois imprimé d'absorber la quantité de résine nécessaire pour la stratification sur supports tels que les panneaux de particules, les panneaux en fibres de bois, les contreplaqués ou autres .The invention aims to significantly improve the quality of these papers and at the same time obtain a reduction in certain products used as filler in these technical papers. These improvements consist mainly in obtaining a paper surface which is optimally suitable for printing, and this without preventing the paper once printed from absorbing the quantity of resin necessary for lamination on supports such as particles, wood fiber panels, plywood or other.
L'impression par héliogravure rotative des papiers décor a pour caractéristique de donner une image peu précise dans la reproduction photographique des structures du bois.The characteristic feature of rotary decoration gravure printing of decorative papers is that they give an imprecise image in the photographic reproduction of wood structures.
L'invention permet d'obtenir une surface différente des papiers décor, permettant ainsi, avec l'utilisation d'encres aqueuses d'impression modifiées, de fixer l'image photographique avec une meilleure fidélité. Selon un mode de réalisation de l'invention, ces papiers sont obtenus avec le traitement suivant . Dans un papier décor avec des valeurs techniques standard mais avec des charges en pigment réduites, est inséré à l'intérieur un mélange de résines melamine-formaldéhyde, urée formaldélyde, acryliques auto-réticulant et durcisseurs.The invention makes it possible to obtain a surface different from the decor papers, thus making it possible, with the use of modified aqueous printing inks, to fix the photographic image with better fidelity. According to one embodiment of the invention, these papers are obtained with the following treatment. In a decorative paper with standard technical values but with reduced pigment charges, a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics and hardeners is inserted inside.
Après séchage suit un deuxième traitement avec un mélange de résines melamine-formaldéhyde, urée formaldéhyde, acryliques auto-réticulant, durcisseurs et pigments.After drying, a second treatment follows with a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics, hardeners and pigments.
Après séchage, on obtient une surface permettant une impression de haute fidélité.After drying, a surface is obtained allowing a high fidelity impression.
Suivant l'utilisation désirée par exemple impression, on effectue un calandrage pour obtenir le lissé optimal pour une impression en héliogravure de haute fidélité.Depending on the desired use, for example printing, calendering is carried out to obtain the optimal smoothness for high-fidelity gravure printing.
Est ici présenté un système de traitement en phases multiples de papiers destinés à la stratification sur support papier, panneaux de particules, panneaux en fibres de bois, ou autres traités à l'intérieur avec un mélange de résines melamine-formaldéhyde, urée formaldéhyde, acryliques auto- réticulant et durcisseurs, et ensuite en surface avec un mélange de résines melamine-formaldéhyde, urée formaldéhyde, acryliques auto-réticulant, durcisseurs, et pigments, obtenant un résultat d'impression de haute-fidélité en utilisant des encres aqueuses spéciales, et, en même temps, une économie de pigments dans le papier de base.Here is presented a multi-phase treatment system for paper intended for lamination on paper support, particle board, wood fiber board, or other treated inside with a mixture of melamine-formaldehyde resins, urea formaldehyde, acrylics self-crosslinking and hardening, and then on the surface with a mixture of melamine-formaldehyde resins, urea formaldehyde, self-crosslinking acrylics, hardeners, and pigments, obtaining a high-fidelity printing result using special aqueous inks, and, at the same time, saving pigments in paper basic.
En ce qui concerne la qualité de l'impression, leAs far as print quality is concerned, the
« Dekorpapier » obtenu par la mise en œuvre de l'invention permet, avec un lissé supérieur, une impression d'une plus haute fidélité ainsi qu'une économie importante des encres d'impression, notamment en encres aqueuses."Dekorpapier" obtained by the implementation of the invention allows, with a higher smoothness, a printing of higher fidelity as well as a significant saving of printing inks, in particular in aqueous inks.
Sur le plan de l'imprégnation, les quantités nécessaires à l'imprégnation finale du papier décor sont fortement diminuées sans pour autant diminuer l'adhérence sur les supports et/ou la résistance mécanique en surface du produit fini. Actuellement, les papiers demandent une imprégnation avec des résines mélamine/urée et/ou mélamine pure d'un poids environ égal au poids des papiers de base.In terms of impregnation, the quantities necessary for the final impregnation of the decor paper are greatly reduced without reducing the adhesion to the supports and / or the mechanical resistance on the surface of the finished product. Currently, papers require impregnation with melamine / urea and / or pure melamine resins of a weight approximately equal to the weight of the base papers.
Au contraire, par la mise en œuvre de l'invention, on réduit sensiblement la quantité de résines utilisée avec un résultat final équivalent c'est à dire des propriétés mécaniques (résistance en surface et adhérence sur les supports) identiques.On the contrary, by implementing the invention, the quantity of resins used is substantially reduced with an equivalent final result, ie identical mechanical properties (surface resistance and adhesion to supports).
D'autres buts et avantages apparaîtront au cours de la description qui suit qui présente un mode préféré de réalisation de l'invention mais qui n'en est pas limitative.Other objects and advantages will appear during the description which follows which presents a preferred embodiment of the invention but which is not limiting.
Le procédé de traitement de bandes de papier pour la fabrication de papier pour imprégnation avec des résines synthétiques, comprend les étapes suivantes : insertion dans le papier d'un mélange à base de résines ; consécutivement ou simultanément à l'étape d'insertion du mélange, traitement d'au moins une face de la bande de papier par application d'un mélange à base de résines séchage du papier ; traitement de surface d'au moins une des faces de la bande de papier par application d'un mélange à base de résines ; séchage du papier. De façon préférée :The process for treating paper webs for the manufacture of paper for impregnation with synthetic resins, comprises the following steps: insertion into the paper of a mixture based on resins; consecutively or simultaneously to the step of inserting the mixture, treatment of at least one face of the paper strip by application of a mixture based on paper drying resins; surface treatment of at least one of the faces of the paper strip by application of a resin-based mixture; paper drying. Preferably:
- en fin de traitement, on lisse la bande de papier sur au moins une face ;- At the end of treatment, the strip of paper is smoothed on at least one side;
- on utilise, pour le mélange et/ou pour le mélange, une composition de résines melamine-formaldéhyde, urée-formaldéhyde et acrylique ;- one uses, for the mixture and / or for the mixture, a composition of melamine-formaldehyde, urea-formaldehyde and acrylic resins;
- on utilise, pour le mélange, une composition de résines melamine-formaldéhyde, urée- formaldéhyde et acrylique ;- a mixture of melamine-formaldehyde, urea-formaldehyde and acrylic resins is used for the mixture;
- les mélanges comportent au moins un composant durcisseur. L'invention concerne aussi un papier pour imprégnation avec des résines synthétiques qui est obtenu à partir d'une bande de papier par mise en œuvre du procédé .- the mixtures contain at least one hardener component. The invention also relates to a paper for impregnation with synthetic resins which is obtained from a strip of paper by implementing the method.
Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention.The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.
La figure 1 est un bloc diagramme illustrant les étapes de réalisation de l'invention selon une variante préférée.FIG. 1 is a block diagram illustrating the steps for carrying out the invention according to a preferred variant.
Pour la suite de la description, on entend par bandes de papier la nappe initialement utilisée pour la fabrication de papier décor et comprenant essentiellement de la cellulose alfa et éventuellement des charges du type Ti02 (dioxyde de titane) . Des pigments peuvent être ajoutés.For the remainder of the description, the term “strips of paper” is intended to mean the tablecloth initially used for the manufacture of decor paper and essentially comprising alfa cellulose and optionally fillers of the Ti0 2 type (titanium dioxide). Pigments can be added.
L'invention concerne d'abord un procédé de traitement de bandes de papier 1 en vue de leur utilisation pour la fabrication de « Dekorpapier » .The invention firstly relates to a method of processing paper strips 1 with a view to their use for the manufacture of "Dekorpapier".
En se référant à la figure 1, on a illustré dans un encadré en pointillé les phases essentielles du procédé selon l'invention selon une variante préférée. En suivant ce diagramme, une bande de papier 1 subit un premier traitement à l'étape numérotée 3 constitutive d'une insertion dans le papier d'un mélange A à base de résine.Referring to Figure 1, there is illustrated in a dotted box the essential phases of the method according to the invention according to a preferred variant. Following this diagram, a strip of paper 1 undergoes a first treatment in step numbered 3 constituting an insertion into the paper of a mixture A based on resin.
De façon préférée, le mélange A utilisé est une composition de résines mélamine formaldéhydes et/ou urée formaldéhydes et acryliques, durcisseurs et charges.Preferably, the mixture A used is a composition of formaldehyde melamine resins and / or formaldehyde and acrylic urea, hardeners and fillers.
Simultanément ou dans une phase successive ces bandes de papier sont traitées en surface (une ou deux faces) avec un mélange B à base de résines préferentiellement identiques au mélange A.Simultaneously or in a successive phase, these paper strips are treated on the surface (one or two faces) with a mixture B based on resins preferentially identical to mixture A.
On pourra réaliser cette étape d' insertion et d' appplication avec une SIZE-PRESSE (Leimpresse/presse pour décollage) et une « coucheuse-enducteur », ou avec une FILM- PRESSE qui unit les deux fonctions. Une étape de séchage 5 est ensuite réalisée par l'intermédiaire de moyens courants tels des rouleaux de séchage, des rayons infrarouge ou autres.This insertion and application step can be carried out with a SIZE-PRESS (Leimpresse / press for take-off) and a “coating-coating machine”, or with a FILM-PRESS which unites the two functions. A drying step 5 is then carried out by means of common means such as drying rollers, infrared rays or the like.
Suite à ce traitement à cœur, on réalise alors un autre traitement de surface sur les faces de la bande de papier 1. Cette étape est repérée 6 à la figure 1.Following this core treatment, another surface treatment is then carried out on the faces of the paper strip 1. This step is marked 6 in FIG. 1.
Il s'agit de l'application d'un mélange C à base de résine sur les faces de ladite bande 1.This involves the application of a resin-based mixture C to the faces of said strip 1.
Le mélange C peut être constitué d'une composition sensiblement équivalente à celle décrite précédemment pour le mélange A.The mixture C can consist of a composition substantially equivalent to that described above for the mixture A.
Ce traitement de surface peut être effectué sur une ou sur les deux faces de la bande de papier 1.This surface treatment can be carried out on one or both sides of the paper strip 1.
Là encore, on pourra utiliser une size-presse ou une film- presse ou de préférence une coucheuse enducteur. Par ailleurs, des pigments peuvent être joints au mélange. Après ce traitement de surface, une nouvelle étape de séchage par des moyens courants déjà évoqués est réalisée. Il est possible de réaliser, en fin de traitement, un lissage 7 de la bande de papier 1 sur au moins l'une de ses faces, en vue d'une impression successive.Again, one can use a size press or a film press or preferably a coating coater. In addition, pigments can be added to the mixture. After this surface treatment, a new drying step by common means already mentioned is carried out. It is possible to carry out, at the end of treatment, a smoothing 7 of the paper strip 1 on at least one of its faces, with a view to successive printing.
Le lissage subi par le papier peut être effectué dans une calandre ou un matériel équivalent .The smoothing undergone by the paper can be carried out in a calender or an equivalent material.
On assure ainsi une meilleure capacité d'impression du support . This ensures better printing capacity of the support.
REFERENCESREFERENCES
A. Mélange AA. Mixture A
B . Mélange B C. Mélange CB. Mix B C. Mix C
1. Bande de papier1. Strip of paper
2. Papier décor2. Decor paper
3. Insertion3. Insertion
4. Premier traitement de surface 5. Séchage4. First surface treatment 5. Drying
6. Second traitement de surface6. Second surface treatment
7. Lissage7. Smoothing
8. Impression8. Printing
9. Imprégnation 9. Impregnation

Claims

REVENDICATIONS
1. Procédé de traitement de bandes de papier (1) pour la fabrication de papier pour imprégnation avec des résines synthétiques, comprenant les étapes suivantes : insertion (3) dans le papier d'un mélange (A) à base de résines ; consécutivement ou simultanément à l'étape d'insertion (3) du mélange (A), traitement d'au moins une face de la bande de papier (1) par application (4) d'un mélange1. A method of treating paper strips (1) for the manufacture of paper for impregnation with synthetic resins, comprising the following steps: insertion (3) into the paper of a mixture (A) based on resins; consecutively or simultaneously to the step of inserting (3) the mixture (A), treating at least one face of the paper strip (1) by applying (4) a mixture
(B) à base de résines séchage (5) du papier ; traitement de surface (6) d'au moins une des faces de la bande de papier (1) par application d'un mélange (C) à base de résines ,- séchage (5) du papier.(B) based on paper drying resins (5); surface treatment (6) of at least one of the faces of the paper strip (1) by application of a mixture (C) based on resins, - drying (5) of the paper.
2. Procédé selon la revendication 1 caractérisé par le fait qu'en fin de traitement, on lisse la bande de papier (1) sur au moins une face.2. Method according to claim 1 characterized in that at the end of treatment, the paper strip (1) is smoothed on at least one face.
3. Procédé selon l'une quelconque des revendications 1 ou3. Method according to any one of claims 1 or
2, caractérisé par le fait qu'on utilise, pour le mélange (A) et/ou pour le mélange (B) , une composition de résines melamine-formaldéhyde, urée- formaldéhyde et acrylique.2, characterized in that a mixture of melamine-formaldehyde, urea-formaldehyde and acrylic resins is used for the mixture (A) and / or for the mixture (B).
4. Procédé selon l'une quelconque des revendications 1 à4. Method according to any one of claims 1 to
3, caractérisé par le fait qu'on utilise, pour le mélange (C) , une composition de résines melamine-formaldéhyde, urée-formaldéhyde et acrylique. 3, characterized in that a mixture of melamine-formaldehyde, urea-formaldehyde and acrylic resins is used for mixture (C).
5. Procédé selon l'une quelconque des revendications 1 à5. Method according to any one of claims 1 to
4, caractérisé par le fait que les mélanges (A, B, C) comportent au moins un composant durcisseur. 4, characterized in that the mixtures (A, B, C) comprise at least one hardener component.
6. Papier pour imprégnation avec des résines synthétiques caractérisé par le fait qu'il est obtenu à partir d'une bande de papier (1) par mise en œuvre du procédé selon l'une quelconque des revendications 1 à 5. 6. Paper for impregnation with synthetic resins characterized in that it is obtained from a strip of paper (1) by implementing the method according to any one of claims 1 to 5.
PCT/MC2000/000001 1999-09-21 2000-09-20 Method for processing paper strips, and paper to be impregnated with synthetic resins WO2001021892A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT00966591T ATE457044T1 (en) 1999-09-21 2000-09-20 METHOD FOR TREATING PAPER WEBS FOR THE PRODUCTION OF PAPER TO BE IMPREGNATED WITH SYNTHETIC RESINS
EP00966591A EP1322816B1 (en) 1999-09-21 2000-09-20 Method for processing paper strips intended for the manufacture of paper that is to be impregnated with synthetic resins
DE60043798T DE60043798D1 (en) 1999-09-21 2000-09-20 METHOD OF TREATING PAPER WEBS FOR THE PREPARATION OF PAPER TO BE IMPREGNATED WITH ARTIFICIAL RESINS
AU2000276922A AU2000276922A1 (en) 1999-09-21 2000-09-20 Method for processing paper strips, and paper to be impregnated with synthetic resins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MC2431 1999-09-21
MC2431A MC200022A1 (en) 1999-09-21 1999-09-21 Eco-decor system multi-phase treatment of paper intended for the laminating of supports such as particle board, wood fiber boards, plywood or other

Publications (1)

Publication Number Publication Date
WO2001021892A1 true WO2001021892A1 (en) 2001-03-29

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Family Applications (1)

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PCT/MC2000/000001 WO2001021892A1 (en) 1999-09-21 2000-09-20 Method for processing paper strips, and paper to be impregnated with synthetic resins

Country Status (6)

Country Link
EP (1) EP1322816B1 (en)
AT (1) ATE457044T1 (en)
AU (1) AU2000276922A1 (en)
DE (1) DE60043798D1 (en)
MC (1) MC200022A1 (en)
WO (1) WO2001021892A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049811A1 (en) * 2006-10-26 2008-05-02 Papeteries Du Leman Processing method for a printing base for melaminated paper

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US3578483A (en) * 1969-05-14 1971-05-11 Formica Corp Process for improving the printability of the surface of alpha-cellulose paper to be used as the decorative sheet in a decorative laminate
FR2414578A1 (en) * 1978-01-13 1979-08-10 Sued West Chemie Gmbh SUPPORT MATERIALS LOADED WITH DUROPLASTIC RESINS, THEIR PREPARATION AND THEIR USES
EP0022153A1 (en) * 1979-07-10 1981-01-14 Th. Goldschmidt AG Process for producing a decorative finished effect sheet
DE2949306A1 (en) * 1979-12-07 1981-06-11 Letron GmbH, 8750 Aschaffenburg Synthetic veneer of paper fibre compsn. impregnated with resin - contg. equal wt. of long and short fibres, can be made on paper machine
WO1994012347A1 (en) * 1992-11-24 1994-06-09 Casco Nobel Ab Film composite
DE4413619A1 (en) * 1993-12-02 1995-06-08 Wkp Wuerttembergische Kunststo Split-resistant paper prod., esp. for finish films
EP0870872A1 (en) * 1997-04-12 1998-10-14 Kämmerer Gmbh One-side impregnated printing paper support
EP0875623A1 (en) * 1997-04-29 1998-11-04 Liri Industriale Srl A process for manufacturing pliable decorative paper sheets and a paper laminate material obtained through such a process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578483A (en) * 1969-05-14 1971-05-11 Formica Corp Process for improving the printability of the surface of alpha-cellulose paper to be used as the decorative sheet in a decorative laminate
FR2414578A1 (en) * 1978-01-13 1979-08-10 Sued West Chemie Gmbh SUPPORT MATERIALS LOADED WITH DUROPLASTIC RESINS, THEIR PREPARATION AND THEIR USES
EP0022153A1 (en) * 1979-07-10 1981-01-14 Th. Goldschmidt AG Process for producing a decorative finished effect sheet
DE2949306A1 (en) * 1979-12-07 1981-06-11 Letron GmbH, 8750 Aschaffenburg Synthetic veneer of paper fibre compsn. impregnated with resin - contg. equal wt. of long and short fibres, can be made on paper machine
WO1994012347A1 (en) * 1992-11-24 1994-06-09 Casco Nobel Ab Film composite
DE4413619A1 (en) * 1993-12-02 1995-06-08 Wkp Wuerttembergische Kunststo Split-resistant paper prod., esp. for finish films
EP0870872A1 (en) * 1997-04-12 1998-10-14 Kämmerer Gmbh One-side impregnated printing paper support
EP0875623A1 (en) * 1997-04-29 1998-11-04 Liri Industriale Srl A process for manufacturing pliable decorative paper sheets and a paper laminate material obtained through such a process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049811A1 (en) * 2006-10-26 2008-05-02 Papeteries Du Leman Processing method for a printing base for melaminated paper

Also Published As

Publication number Publication date
ATE457044T1 (en) 2010-02-15
EP1322816B1 (en) 2010-02-03
MC200022A1 (en) 2001-03-28
DE60043798D1 (en) 2010-03-25
AU2000276922A1 (en) 2001-04-24
EP1322816A1 (en) 2003-07-02

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