EP1322816B1 - Method for processing paper strips intended for the manufacture of paper that is to be impregnated with synthetic resins - Google Patents
Method for processing paper strips intended for the manufacture of paper that is to be impregnated with synthetic resins Download PDFInfo
- Publication number
- EP1322816B1 EP1322816B1 EP00966591A EP00966591A EP1322816B1 EP 1322816 B1 EP1322816 B1 EP 1322816B1 EP 00966591 A EP00966591 A EP 00966591A EP 00966591 A EP00966591 A EP 00966591A EP 1322816 B1 EP1322816 B1 EP 1322816B1
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- EP
- European Patent Office
- Prior art keywords
- paper
- mixture
- resin
- synthetic resins
- drying
- 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.)
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Classifications
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- 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
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- 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 processing paper webs for the manufacture of paper for impregnation with synthetic resins, comprising the following steps.
- the invention will find application mainly in the field of stratification stratification high and / or low pressure supports such as particle board, wood fiber, plywood or other.
- Dekorpapier is a paper intended for impregnation with synthetic resins. This paper is, after printing or not, impregnated to be stamped (lamination) on supports such as particle board, wood fiber board, plywood or other.
- Such “laminate” supports are used as a replacement for wood in the furniture industry, as well as for floor coverings, wall coverings and the like.
- impregnation is carried out by means of different chemical mixtures based on resins.
- the material thus obtained is applied to the physical medium to be covered, for example the panel of a piece of furniture.
- the current "Dekorpapier” is therefore a paper as it is, without pretreatment.
- the document WO-A-94/12347 shows the manufacture of an applicable film on panels. This film is impregnated with resins before other treatments.
- EP-A-0022153 discloses a method of making decorative paper. This is a finishing step by successive coatings without treatment at heart.
- the document FR-A-2414578 shows support materials containing a duroplastic resin by complete impregnation and a radiation curable polyester resin coating. According to this document, complete impregnation is still carried out and the manufacturing procedure is very complex.
- EP-A-0875623 also shows a process for making decorative paper with conventional steps and in particular a complete impregnation of the paper.
- a gravure printing is performed by which the ink tends to diffuse inside the "Dekorpapier" because of too much porosity thereof.
- the current processes implement a step of impregnating the paper web with resins.
- the present invention aims to overcome the disadvantages of currently used methods.
- pretreatment steps are carried out whose purposes and advantages are introduced hereinafter.
- the object of the invention is to significantly improve the quality of these papers and at the same time to obtain a reduction of certain products used as a filler in these technical papers.
- the rotogravure printing of decorative papers has the characteristic of giving an inaccurate image in the photographic reproduction of the structures of the wood.
- the invention makes it possible to obtain a different surface from the decor papers, thus making it possible, with the use of modified aqueous printing inks, to fix the photographic image with a better fidelity.
- these papers are obtained with the following treatment.
- a paper decorated with standard technical values but with reduced pigment fillers is inserted inside a mixture of melamine-formaldehyde resins, urea formaldehyde, self-crosslinking acrylics and hardeners.
- calendering is performed to obtain the optimal smoothness for high-fidelity gravure printing.
- the "Dekorpapier" obtained by the implementation of the invention makes it possible, with an upper smoothness, a printing of a higher fidelity as well as a significant economy of the inks of printing, especially in aqueous inks.
- the quantities necessary for the final impregnation of the decor paper are greatly reduced without reducing the adhesion to the substrates and / or the surface strength of the finished product.
- the papers require impregnation with melamine / urea and / or pure melamine resins of a weight approximately equal to the weight of the base papers.
- the quantity of resins used is substantially reduced with an equivalent final result, that is to say identical mechanical properties (surface resistance and adhesion to the supports).
- the invention also relates to a paper for impregnation with synthetic resins which is obtained from a paper web by carrying out the process.
- the figure 1 is a block diagram illustrating the embodiments of the invention according to a preferred variant.
- paper strips are understood to mean the web initially used for the production of decorative paper and essentially comprising cellulose alfa and optionally TiO 2 (titanium dioxide) type fillers.
- Pigments can be added.
- the invention firstly relates to a method of processing paper webs 1 for use in 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 resin.
- the mixture A used is a composition of melamine formaldehyde and / or urea formaldehyde and acrylic resins, hardeners and fillers.
- these strips of paper are surface treated (one or two sides) with a mixture B based on resins preferably identical to the mixture A.
- This insertion and application step can be carried out with a SIZE-PRESS (Leimpresse / press for take-off) and a "coater-coater", or with a PRESS-FILM uniting the two functions.
- SIZE-PRESS Leimpresse / press for take-off
- coater-coater or with a PRESS-FILM uniting 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.
- This step is marked 6 at the figure 1 .
- the mixture C may consist of a composition substantially equivalent to that described above for the mixture A.
- This surface treatment can be performed on one or both sides of the paper web 1.
- pigments can be added to the mixture. After this surface treatment, a new drying step by common means already mentioned is carried out.
- a smoothing 7 of the paper strip 1 is carried out on at least one of its faces, for the purpose of successive printing.
- the smoothing of the paper can be done in a calender or equivalent material.
Abstract
Description
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 processing 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.The invention will find application mainly in the field of stratification stratification high and / or low pressure supports such as particle board, wood fiber, plywood or other.
Les papiers pour l'imprégnation par des résines synthétiques sont couramment appelés « Dekorpapier », terme d'origine allemande.The 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.Dekorpapier is a paper intended for impregnation with synthetic resins. This paper is, after printing or not, impregnated to be stamped (lamination) on supports such as particle board, wood fiber board, plywood or other.
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.Such "laminate" supports are used as a replacement for wood in the furniture industry, as well as for 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.Therefore, are concerned by the invention, not only the paper industries, for its transformation, but also those related to the application of "Dekorpapier" including furniture.
Dans le domaine de l'ameublement, on utilise fréquement 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.In the field of furniture, it is frequently used "Dekorpapier" applicable under pressure and under temperature on a support of the particleboard type wood fiber or plywood.
Sur la base de feuille constituée à partir de papier et éventuellement comprenant des charges, on réalise une impression d'un motif souhaité.On the basis of sheet made from paper and optionally comprising fillers, an impression of a desired pattern is made.
Ce motif imite fréquemment l'aspect naturel du bois avec la coloration souhaitée.This pattern frequently mimics the natural look of the wood with the desired color.
Suite à l'impression ou auparavant, une imprégnation est réalisée au moyen de différents mélanges chimiques à base de résines.Following printing or before, impregnation is carried out by means of 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.The material thus obtained is applied to the physical medium to be covered, for example the panel of a piece of furniture.
Le « Dekorpapier » actuel est donc un papier tel quel, sans prétraitement.The current "Dekorpapier" is therefore a paper as it is, without pretreatment.
Le document
Le document
Cet état de la technique révèle qu'une imprégnation totale du papier est systématiquement opérée et ce, sans traitement préalable visant à limiter la consommation de résines lors de l'imprégnation et à augmenter la qualité d'impressionThis state of the art reveals that a total impregnation of the paper is systematically carried out and without prior treatment to limit the consumption of resins during the impregnation and to increase the quality of printing
L'état de la technique en général présente plusieurs inconvénients.The state of the art in general has several disadvantages.
En premier lieu, la qualité d'impression est nettement optimisable.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.Generally, a gravure printing is performed by which the ink tends to diffuse inside the "Dekorpapier" because of too much porosity thereof.
Cette diffusion est nuisible à la précision du motif désiré ainsi qu'à la consommation d'encre.This diffusion is detrimental to the accuracy of the desired pattern as well as the ink consumption.
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 are currently getting only "Dekorpapier" with low resolution patterns and still require large quantities of inks.
Par ailleurs, les procédés actuels mettent en oeuvre une étape d'imprégnation de la bande de papier avec des résines.Moreover, the current processes implement a step of impregnating the paper web 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 (resin mixture) 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.Here again, the heavy consumption caused by the current processes increases the cost of manufacturing the "Dekorpapier" without necessarily achieving optimal mechanical properties of the final product.
La présente invention a pour but de pallier les inconvénients des procédés actuellement utilisés.The present invention aims to overcome the disadvantages of currently used methods.
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 has a process for treating paper strips for the production 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, prior to the conventional steps of printing and final impregnation of the paper web, pretreatment steps are carried out whose purposes and advantages are introduced hereinafter.
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.The object of the invention is to significantly improve the quality of these papers and at the same time to obtain a reduction of certain products used as a filler in these technical papers.
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.These improvements consist mainly in obtaining a paper surface optimally suitable for printing, 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 others.
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 rotogravure printing of decorative papers has the characteristic of giving an inaccurate image in the photographic reproduction of the structures of the wood.
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.The invention makes it possible to obtain a different surface from the decor papers, thus making it possible, with the use of modified aqueous printing inks, to fix the photographic image with a better fidelity.
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.According to one embodiment of the invention, these papers are obtained with the following treatment. In a paper decorated with standard technical values but with reduced pigment fillers, is inserted inside a mixture of melamine-formaldehyde resins, urea formaldehyde, self-crosslinking acrylics and hardeners.
Après séchage suit un deuxième traitement avec un mélange de résines melamine-formaldéhyde, urée formaldéhyde, acryliques auto-réticulant, durcisseurs et pigments.After drying follows a second treatment with a mixture of melamine-formaldehyde resins, urea formaldehyde, 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 printing.
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 performed 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 system of treatment in multiple phases of paper for lamination on paper, particle board, wood fiber panels, or other treated inside with a mixture of melamine-formaldehyde resins, urea formaldehyde, acrylic self-crosslinking and hardeners, and then on the surface with a blend 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, a saving of pigments in the paper basic.
En ce qui concerne la qualité de l'impression, le « Dekorpapier » obtenu par la mise en oeuvre 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.As regards the quality of the printing, the "Dekorpapier" obtained by the implementation of the invention makes it possible, with an upper smoothness, a printing of a higher fidelity as well as a significant economy of the inks of printing, especially 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.In terms of impregnation, the quantities necessary for the final impregnation of the decor paper are greatly reduced without reducing the adhesion to the substrates and / or the surface strength of the finished product.
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.At present, the 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 oeuvre 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 the implementation of the invention, the quantity of resins used is substantially reduced with an equivalent final result, that is to say identical mechanical properties (surface resistance and adhesion to the 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 become apparent from the description which follows, which presents a preferred embodiment of the invention but which is not limiting thereto.
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.
- inserting into the paper a resin-based mixture;
- consecutively or simultaneously with the step of inserting the mixture, treating at least one side of the paper web by applying a resin-based mixture
- drying paper;
- surface treatment of at least one of the faces of the paper web by application of a resin-based mixture;
- paper drying.
De façon préférée :
- en fin de traitement, on lisse la bande de papier sur au moins une face ;
- on utilise, pour le mélange et/ou pour le mélange, une composition de résines mélamine-formaldéhyde, urée-formaldéhyde et acrylique ;
- on utilise, pour le mélange, une composition de résines mélamine-formaldéhyde, urée-formaldéhyde et acrylique ;
- les mélanges comportent au moins un composant durcisseur.
- at the end of the treatment, the strip of paper is smoothed on at least one face;
- a mixture of melamine-formaldehyde, urea-formaldehyde and acrylic resins is used for mixing and / or mixing;
- a mixture of melamine-formaldehyde, urea-formaldehyde and acrylic resins is used for the blending;
- the mixtures comprise at least one hardener component.
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 oeuvre du procédé.The invention also relates to a paper for impregnation with synthetic resins which is obtained from a paper web by carrying out the process.
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 accompanying drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will make it easy to understand the invention.
La
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 TiO2 (dioxyde de titane).For the remainder of the description, paper strips are understood to mean the web initially used for the production of decorative paper and essentially comprising cellulose alfa and optionally TiO 2 (titanium dioxide) type fillers.
Des pigments peuvent être ajoutés.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
En se référant à la
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.Following this diagram, a strip of
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 melamine formaldehyde and / or urea formaldehyde and acrylic resins, 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 préférentiellement identiques au mélange A.Simultaneously or in a successive phase these strips of paper are surface treated (one or two sides) with a mixture B based on resins preferably identical to the 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.This insertion and application step can be carried out with a SIZE-PRESS (Leimpresse / press for take-off) and a "coater-coater", or with a PRESS-FILM uniting the two functions.
Une étape de séchage 5 est ensuite réalisée par l'intermédiaire de moyens courants tels des rouleaux de séchage, des rayons infrarouge ou autres.A drying
Suite à ce traitement à coeur, on réalise alors un autre traitement de surface sur les faces de la bande de papier 1.Following this heart treatment, another surface treatment is then performed on the faces of the
Cette étape est repérée 6 à la
Il s'agit de l'application d'un mélange C à base de résine sur les faces de ladite bande 1.It is the application of a resin-based mixture C on the faces of said
Le mélange C peut être constitué d'une composition sensiblement équivalente à celle décrite précédemment pour le mélange A.The mixture C may 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 performed on one or both sides of the
Là encore, on pourra utiliser une size-presse ou une film-presse ou de préférence une coucheuse enducteur.Here again, it will be possible to use a size-press or a press-film or preferably a coater.
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.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.
On réalise 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.At the end of the treatment, a smoothing 7 of the
Le lissage subi par le papier peut être effectué dans une calandre ou un matériel équivalent.The smoothing of the paper can be done in a calender or equivalent material.
On assure ainsi une meilleure capacité d'impression du support.This ensures a better print capacity of the support.
- A. Mélange AA. Mixture A
- B. Mélange BB. Mixture B
- C. Mélange CC. Mixture C
- 1. Bande de papier1. Paper tape
- 2. Papier décor2. Decor paper
- 3. Insertion3. Insertion
- 4. Premier traitement de surface4. First surface treatment
- 5. Séchage5. Drying
- 6. Second traitement de surface6. Second surface treatment
- 7. Lissage7. Smoothing
- 8. Impression8. Printing
- 9. Imprégnation9. Impregnation
Claims (6)
- A method of treating webs of paper (1) for the manufacturing of paper in view of a subsequent impregnation with synthetic resins, comprising the following steps:- the insertion (3) of a resin-based mixture (A) into the core of the paper;- the treatment of at least one face of the paper web (1) by the application (4) of a resin-based mixture (B) simultaneously with the mixture (A) insertion step (3), the insertion step (3) being performed by a size press or by a film press that unites the two insertion and application functions;- the drying (5) of the paper;- the surface treatment (6) of at least one of the faces of the paper web (1) by the application of a resin-based mixture (C) with a coating machine;- the drying (5) of the paper;- the smoothing of the paper web (1) on at least one face by calendering.
- The method according to claim 1 in which the treatment by application (4) of a mixture (B) simultaneously with the insertion step (3) is carried out on both faces of the paper web (1).
- The method according to claim 1 or 2 in which the surface treatment (6) is carried out on both faces of the web (1).
- The method according to claim 1, 2 or 3 characterized by the fact that
A melamine-formaldehyde, urea-formaldehyde and acrylic resin composition is used for mixture (A) and/or for mixture (B). - The method according to any one of claims 1 to 4, characterized by the fact that
A melamine-formaldehyde, urea-formaldehyde and acrylic resin composition is used for mixture (C). - The method according to any one of claims 1 or 5, characterized by the fact that
Mixtures (A, B, C) comprise at least one hardener component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| PCT/MC2000/000001 WO2001021892A1 (en) | 1999-09-21 | 2000-09-20 | Method for processing paper strips, and paper to be impregnated with synthetic resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1322816A1 EP1322816A1 (en) | 2003-07-02 |
| EP1322816B1 true EP1322816B1 (en) | 2010-02-03 |
Family
ID=19738391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00966591A Expired - Lifetime 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 |
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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MC200104A1 (en) * | 2006-10-26 | 2007-12-12 | Ernst Heller | New method of producing the imitation wood printed layer in the product laminate floors by a paper machine with a printing film and a softcalander |
Family Cites Families (8)
| 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 |
| DE2801396A1 (en) * | 1978-01-13 | 1979-07-19 | Sued West Chemie Gmbh | THU-PLASTIC RESIN LOADED CARRIER MATERIALS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE |
| DE2927746C2 (en) * | 1979-07-10 | 1981-05-27 | Th. Goldschmidt Ag, 4300 Essen | Process for the production of a decorative finished effect film |
| 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 |
| EP0670780B1 (en) * | 1992-11-24 | 1996-05-01 | Casco Nobel Ab | Film composite |
| DE4413619C2 (en) * | 1993-12-02 | 1996-09-26 | Wkp Wuerttembergische Kunststo | Process for making paper and laminates |
| DE59806662D1 (en) * | 1997-04-12 | 2003-01-30 | Ahlstrom Osnabrueck Gmbh | Paper print carrier impregnated on one side |
| IT1292294B1 (en) * | 1997-04-29 | 1999-01-29 | Liri Ind Srl | METHOD FOR THE PRODUCTION OF FLEXIBLE DECORATIVE PAPER AND MATERIAL OBTAINED WITH THIS METHOD. |
-
1999
- 1999-09-21 MC MC2431A patent/MC200022A1/en unknown
-
2000
- 2000-09-20 AU AU2000276922A patent/AU2000276922A1/en not_active Abandoned
- 2000-09-20 AT AT00966591T patent/ATE457044T1/en not_active IP Right Cessation
- 2000-09-20 EP EP00966591A patent/EP1322816B1/en not_active Expired - Lifetime
- 2000-09-20 WO PCT/MC2000/000001 patent/WO2001021892A1/en active Application Filing
- 2000-09-20 DE DE60043798T patent/DE60043798D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| MC200022A1 (en) | 2001-03-28 |
| EP1322816A1 (en) | 2003-07-02 |
| WO2001021892A1 (en) | 2001-03-29 |
| ATE457044T1 (en) | 2010-02-15 |
| AU2000276922A1 (en) | 2001-04-24 |
| DE60043798D1 (en) | 2010-03-25 |
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