EP4202117A1 - Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression - Google Patents

Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression Download PDF

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Publication number
EP4202117A1
EP4202117A1 EP21217264.7A EP21217264A EP4202117A1 EP 4202117 A1 EP4202117 A1 EP 4202117A1 EP 21217264 A EP21217264 A EP 21217264A EP 4202117 A1 EP4202117 A1 EP 4202117A1
Authority
EP
European Patent Office
Prior art keywords
base paper
decorative base
decorative
weight
fibrous
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.)
Pending
Application number
EP21217264.7A
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German (de)
English (en)
Inventor
Christopher Altenburg
Michael Kloskowski
Knut Hornig
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.)
Schoeller Technocell GmbH and Co KG
Original Assignee
Schoeller Technocell GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schoeller Technocell GmbH and Co KG filed Critical Schoeller Technocell GmbH and Co KG
Priority to EP21217264.7A priority Critical patent/EP4202117A1/fr
Publication of EP4202117A1 publication Critical patent/EP4202117A1/fr
Pending legal-status Critical Current

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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
    • D21H27/18—Paper- or board-based structures for surface covering
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • 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

Definitions

  • the invention relates to a decorative base paper for decorative coating materials, a method for its production, the use of the decorative base paper for the production of decorative coating materials, and a decorative coating material comprising the decorative base paper.
  • decorative coating materials so-called decorative papers, also called decorative foils, are preferably used for surface coating in the manufacture of furniture and in interior design.
  • a decorative paper is understood to mean a synthetic resin-impregnated or synthetic-resin-impregnated and surface-treated, printed or unprinted decorative base paper web.
  • Decor papers are glued or glued to a carrier board.
  • Laminates high pressure laminates
  • the structure of these laminates generally consists of a transparent support sheet (overlay) that produces maximum surface resistance, a decorative base paper impregnated with synthetic resin (decorative paper) and one or more phenolic resin-coated kraft papers.
  • a transparent support sheet overlay
  • synthetic resin decorative paper
  • phenolic resin-coated kraft papers for example, hardboard and chipboard as well as plywood are used as a base for this.
  • the base paper impregnated with synthetic resin is pressed directly onto a base, for example chipboard, using low pressure.
  • the decorative paper used for the above-mentioned coating materials is white or colored with or without additional printing.
  • decor base papers as starting materials for the production of the above-mentioned coating materials, such as high opacity for better coverage of the substrate, uniform formation and grammage of the sheet for uniform resin absorption, high light resistance, high purity and uniformity of color for good reproducibility of the pattern to be printed, high print quality of the pattern to be printed, high wet strength for a smooth impregnation process, adequate absorbency to obtain the required resin saturation level, dry strength during rewinding operations in the paper machine and when printing in the printing machine.
  • Decor base papers generally consist of bright white sulphate pulps, mainly hardwood pulp, up to 45% pigments and fillers as well as wet strength agents, dry strength agents, retention aids, rheological additives and fixing agents.
  • Decorative base papers differ from conventional papers in that they have a much higher proportion of fillers and in the absence of internal sizing or surface sizing with known sizing agents such as alkyl ketene dimers, which is customary in paper.
  • decorative base papers consisting of a fibrous layer.
  • decorative base papers are used, for example, in EP 1 207 233 B1 and EP 1 379 729 A1 describe.
  • decor base papers are known in the prior art with which a good printing result can be produced, for example with inkjet printing machines. The problem is that obtaining a good print quality often impairs the impregnation ability of the decorative base paper. For example, it's off EP 1 749 134 A1 known on the decor base paper a color receiving layer applied to improve its print quality.
  • the application of the color receiving layer to the decorative base paper leads to a significant deterioration in the impregnation behavior and thus the further processing of the decorative base paper, since the pores of the decorative base paper, especially on its surface, are reduced in size or even closed by the mass of the color receiving layer.
  • the additional work step of applying a color receiving layer leads to increased use of material and time and thus higher production costs.
  • opacity is one of the most important properties of decorative base paper. This characterizes the ability to cover the substrate.
  • pigments with a high refractive index are added in large quantities to the fibrous material. These pigments are necessary because many alternative pigments used in other paper products, such as silicates, have a refractive index comparable to the impregnating resins. A small difference in the refractive indices of the pigments, the cellulose and the impregnating resins leads to a very low opacity of the decorative film after impregnation.
  • the decor base paper itself serves as a carrier material for the color design or the application of prints and decors.
  • Wood or stone patterns that are produced with printing processes such as gravure printing or on digital inkjet printing machines are particularly popular.
  • the pressure is applied to the surface and the components of the ink penetrate the surface of the paper depending on the amount applied.
  • the deeper the inks, and thus the colorants contained therein, penetrate into the decorative base paper the more the color effect of the colorants is weakened by the pigments with a high refractive index present in the decorative base paper.
  • a decorative base paper, which due to its high opacity ensures good optical coverage of the carrier material, thus inevitably has negative effects with regard to the achievable color intensity and thus the print quality and the optical design.
  • the object of the invention was to provide a decorative base paper which does not have the disadvantages of the prior art mentioned and is distinguished in particular by high print quality combined with good opacity and impregnability.
  • a decorative base paper for decorative coating materials comprising two fibrous layers, the first fibrous layer containing more than 5% by weight of at least one pigment with a refractive index greater than 2.0, based on the dry cellulose of the first fibrous layer. and the second fiber layer has less than 5% by weight of at least one pigment with a refractive index greater than 2.0, based on the dry pulp of the second fiber layer.
  • the decorative base paper comprises two fibrous layers that have a different proportion of pigment/s with a high refractive index of greater than 2, have 0.
  • the proportion of pigment(s) with a high refractive index is higher in the first fiber layer than in the second fiber layer.
  • the first fibrous ply thus has a high opacity and behaves in its properties like a decorative base paper known in the prior art that has only one fibrous ply.
  • the second fibrous layer of the decorative base paper according to the invention can advantageously be specifically adapted to the requirements of the respective printing process.
  • a further advantage of the decorative base paper according to the invention is that a high print quality is obtained without an additional color receiving layer having to be applied to the decorative base paper, so that the decorative base paper according to the invention has good impregnability and can be produced more easily and cost-effectively.
  • a decorative base paper within the meaning of the invention is a paper which, in contrast to conventional papers, is neither sized in the mass nor has undergone any surface sizing.
  • the decorative base paper according to the invention has at least two layers of fibrous material.
  • the first fibrous material layer serves as a covering for a carrier material and is in full-surface contact with the carrier material.
  • the second fiber layer can be printed with a decoration.
  • the decorative base paper is used to produce a decorative coating material
  • the second fibrous ply is in full-surface contact with the first fibrous ply on its rear side and can carry a decoration on its front side (visible side), which faces an observer in the finished decorative coating material.
  • the two fibrous layers of the decorative base paper according to the invention are mechanically connected to one another by the respective cellulose fibers of the individual fibrous layers, in contrast to a paper composite formed by stacking individual paper layers and connecting them with resin or adhesive.
  • the first fibrous material layer can comprise customary additives.
  • Customary additives can be wet strength agents, dry strength agents, retention aids, rheological additives and fixing agents.
  • the first fibrous layer has more than 5% by weight, preferably more than 15% by weight, particularly preferably more than 25% by weight, of at least one pigment with a refractive index greater than 2.0, based on the dry pulp of the first fibrous layer on. It has proven to be particularly advantageous if the first fibrous layer has a higher quantity of pigment(s) with a refractive index greater than 2.0 than the second fibrous layer.
  • the refractive index is determined using the usual methods known to those skilled in the art at the wavelength of the sodium D line (nD) of 589 nm using a refractometer.
  • the first fiber layer has 6-50% by weight, preferably 15-48% by weight, particularly preferably 25-45% by weight, of at least one pigment with a refractive index greater than 2.0, based on the dry pulp of the first fiber layer on.
  • suitable pigments with a refractive index of more than 2.0 are titanium dioxide and zinc sulfide or mixtures thereof.
  • the at least one pigment with a refractive index greater than 2.0 contains or consists of titanium dioxide.
  • pigment(s) with a refractive index of greater than 2.0 small proportions (less than 15% by weight) of pigment(s) with a refractive index of less than 2.0 can also be used in the first fiber layer.
  • pigments that can be used in the first fiber layer with a refractive index of less than 2.0 are the pigments described below in connection with the second fiber layer with a refractive index of less than 2.0.
  • the opacity of the decorative base paper is at least 80%, preferably at least 85%, particularly preferably at least 90%, measured according to DIN 53146 using an ACE color measuring device from Data Color.
  • the titanium dioxide content in the decor base paper was determined according to DIN 54370.
  • the weight per unit area of the first fibrous material layer preferably makes up the majority of the total weight per unit area of the decorative base paper.
  • the basis weight of the first fibrous material layer can be at least 40 g/m 2 , preferably between 40 g/m 2 and 250 g/m 2 , particularly preferably between 55 g/m 2 and 120 g/m 2 . This achieves an optimal balance between adequate coverage of the substrate (sufficient opacity) on the one hand and the lowest possible consumption of starting materials on the other.
  • the second fibrous layer of the decorative base paper according to the invention can comprise customary additives in addition to cellulose and optionally pigments.
  • Customary additives can be wet strength agents, dry strength agents, retention aids, rheological additives and fixing agents. Fixing agents as used here do not mean the dye-fixing substances that can be used according to the invention in the second fibrous layer, as defined further below.
  • the customary additives can be used in the second fibrous ply of the decorative base paper according to the invention in the amounts customary in the prior art.
  • the usual additives are used in an amount of 0.02% by weight, preferably at least 0.05% by weight, particularly preferably at least 0.2% by weight to at most 5% by weight, based on the dry pulp of the second fiber layer used.
  • the second fibrous layer has less than 5% by weight, preferably less than 3% by weight, particularly preferably less than 1% by weight, very particularly preferably none, of at least one pigment with a refractive index greater than 2.0, based on the dry pulp of the second fiber layer. If necessary, the same at least one pigment with a refractive index of greater than 2.0 can be present in the second fibrous material layer as has already been described above in connection with the first fibrous material layer.
  • the second fibrous material layer has very little, preferably no, opacity. As a result, the colorants in the ink when printing the second fiber layer of the invention Decor base paper used more efficiently than with a comparable single-ply decor base paper with high opacity.
  • the second fibrous layer can additionally contain dye-fixing substances selected from salts and/or cationic polymers.
  • the proportion of salts and/or cationic polymers in the second fiber layer is at least 0.5% by weight, preferably at least 2% by weight, particularly preferably at least 5% by weight, and at most 20% by weight. %, based on the dry pulp of the second fiber layer.
  • Suitable cationic polymers are polyvinylamine, polyacrylamides and polyethyleneimines.
  • Suitable salts are alkaline earth metal salts, in particular alkaline earth metal halides and alkaline earth metal nitrates, or mixtures thereof.
  • the dyes usually used in printing inks for gravure printing or for digital printing processes such as inkjet printing are anionically charged. These anionic dyes are fixed to the surface of the fibrous layer by the salts and/or cationic polymers. The printability of the decorative base paper is consequently improved by the presence of dye-fixing substances in the second fibrous material layer.
  • the second fiber layer contains at least 1% by weight, preferably at least 5% by weight, particularly preferably at least 10% by weight and at most 40% by weight of at least one pigment with a refractive index of less than 2, 0, based on the dry pulp of the second fiber layer.
  • the at least one pigment with a refractive index of less than 2.0 can be selected from aluminum oxide, aluminum hydroxide, boehmite, clay, calcined clays, kaolins, in particular natural kaolins, delaminated kaolins and other aluminum silicates, including synthetic ones, talc, kieselguhr, aluminum trihydrate and silicic acids (e.g. precipitated or pyrogenic silica) and mixtures thereof.
  • a cationized pyrogenic silica is preferably used as the silica.
  • the at least one pigment with a refractive index of less than 2.0 that is optionally contained in the second fiber layer also has a specific surface area of at least 1 m 2 /g, preferably at least 50 m 2 /g, particularly preferably at least 100 m 2 /g, in particular 150 m 2 /g, very particularly preferably at least 190 m 2 /g, according to BET (according to DIN ISO 9277).
  • the second fibrous material layer has at least one pigment with a refractive index of less than 2.0 and a specific surface area of 200 to 330 m 2 /g. It has been found that the addition of at least one pigment with a high specific surface further improves the printability of the decorative base paper.
  • the weight per unit area of the second fibrous material layer preferably makes up the smaller proportion of the total weight per unit area of the decorative base paper.
  • the weight per unit area of the second fibrous material layer can be at most 100 g/m 2 , preferably between 15 g/m 2 and 100 g/m 2 , particularly preferably between 20 g/m 2 and 50 g/m 2 .
  • the second fibrous material layer has the lowest possible weight per unit area. With the currently customary production processes, basis weights of less than 15 g/m 2 cannot be achieved in an economically sensible manner.
  • the decorative base paper according to the invention can be used white or colored.
  • Dye(s) can be used to color the decorative base paper according to the invention.
  • Exemplary inorganic dye(s) are metal oxides, hydroxides and hydrated oxides, metal sulfides, sulfates, chromates and molybdates or mixtures thereof.
  • Exemplary organic dye(s) are carbonyl dyes (e.g. quinones, quinacridones), cyanine dyes, azo dyes, azomethines and methines, phthalocyanines or dioxazines.
  • inorganic dye(s) and organic dye(s) are preferred according to the invention.
  • commercially available dyes such as Iron Oxide (EO) Yellow (Bayferrox 415), Iron Oxide (EO) Red (Bayferrox 110 M), Carbon Black (Carbofin LC 2900), Dye Blue PB 15, Dye Violet PV 23 and Dye Yellow PY 97 and mixtures thereof are used.
  • dye(s) is to be understood as meaning an individual dye or a mixture of dyes.
  • the dyes are colored coloring substances, not white pigments or achromatic, non-coloring ones fabrics.
  • the amount of dye(s) in the decorative base paper can be from 0.0001 to 5% by weight, in particular from 0.001 to 4% by weight.
  • the stated quantity refers to the mass of the entire pulp of the decorative base paper.
  • the first and second fibrous layers contain dye(s).
  • the ratio of the proportion by weight of dye(s) in the first fibrous layer to the proportion by weight of dye(s) in the second fibrous layer is preferably less than 1, particularly preferably less than 0.5.
  • only the second fibrous material layer has dye(s).
  • smoothed paper usually has less air permeability than unsmoothed paper.
  • the decorative base paper according to the invention has an impregnation behavior with a value of less than 10 s, particularly preferably less than 5 s.
  • the impregnation behavior is determined according to the method explained in connection with the examples.
  • the first fibrous material ply is formed in a first wire section and the second fibrous material ply is formed in a second wire section of a paper machine.
  • a fourdrinier paper machine with or without surface drainage, a cylinder mold paper machine or a gap former paper machine can be used as the paper machine, as is the case, for example, in EP 0 851 058 B1 is described.
  • the different fiber layers can be formed using several single-layer or multi-layer headboxes.
  • the two fibrous layers according to steps a) and b) can also be processed in a common step on a single wire section, such as a Fourdrinier wire, a Fourdrinier wire with top drainage, a cylinder wire or a Gapfomer, using a multi-layer headbox. are formed. It is also possible to form the second fibrous layer wet-in-wet with the aid of a secondary headbox placed on the first fibrous layer. This can be done with or without subsequent topside drainage.
  • Softwood pulps, hardwood pulps or mixtures of both types of pulp can be used to form the first and second fiber layers.
  • 100% hardwood pulp is preferred.
  • mixtures of softwood/hardwood pulps in a mass ratio of 5:95 to 50:50, in particular 10:90 to 30:70, can also be used.
  • the cellulose mixture can be ground at a consistency of 2 to 5% by weight to a degree of beating of 10 to 45°SR.
  • the components mentioned above in connection with the decorative base paper according to the invention such as pigments, dyes and wet strength agents such as polyamide/polyamine-epichlorohydrin resin, cationic polyacrylates, modified melamine-formaldehyde resin or cationized starches, can be added in a mixing chest or continuously, depending on the fiber layer added in amounts customary for the production of decorative base paper and mixed well with the pulp mixture.
  • the high-consistency stock produced in the mixing chest or continuously can be diluted down to a consistency of around 1%. If necessary, further auxiliaries such as retention aids, defoamers, dyes and other auxiliaries mentioned above or mixtures thereof can be added.
  • This thin stock is fed via the headbox of the paper machine to the wire section or twin-wire section. The respective first or second fiber layer is formed.
  • the first and second fibrous layers are brought together in step c) to form a decorative base paper.
  • the decor base paper is then dewatered and dried.
  • the dewatering and drying preferably takes place after the two fibrous layers have been brought together in step c).
  • the basis weight of the dry decorative base paper produced can be 15 to 300 g/m 2 , preferably 60 to 130 g/m 2 .
  • the decorative base papers can first be printed and then impregnated or soaked with synthetic resins customary for this purpose.
  • Synthetic resins customary for this purpose are, for example, melamine-formaldehyde resin, urea-formaldehyde resin, phenol-formaldehyde resin, polyacrylates, acrylic acid ester-styrene copolymers or compatible mixtures thereof.
  • the amount of the dry weight of the synthetic resin is 40 to 250%, preferably 80 to 125%, based on the basis weight of the decorative base paper.
  • the impregnation can also take place in the size press of the paper machine.
  • the decorative base paper can be impregnated in such a way that the paper is not completely impregnated.
  • Such decorative papers are also referred to as pre-impregnates.
  • the proportion of the synthetic resin introduced into the decorative base paper by impregnation is 25 to 30% by weight, based on the weight per unit area of the decorative base paper.
  • the impregnated or partially impregnated decorative base paper can also be varnished and then applied to a substrate such as a wooden panel or a wood-based material by thermal pressing.
  • Figure 1 shows a schematic representation of a decorative base paper 1 according to the invention.
  • the decorative base paper 1 comprises a first fibrous layer 2 which contains more than 5% by weight of at least one pigment 3 with a refractive index of greater than 2.0, based on the dry pulp the first fibrous layer.
  • the decorative base paper comprises a second fibrous ply 4, which has less than 5% by weight of at least one pigment 3 with a refractive index greater than 2, based on the dry cellulose of the second fibrous ply.
  • the course of the proportion (in % by weight based on the dry pulp of the respective fiber layer) of the pigment 3 with a refractive index of greater than 2.0 contained in the first and second fiber layer is shown as an example. It can be seen from the example progression of the proportion of pigment 3 that this is well above 5% by weight in the first fibrous material layer 2 and below 5% by weight in the second fibrous material layer 4 .
  • a pulp suspension was prepared by grinding a pulp mixture of 80% by weight eucalyptus pulp and 20% by weight pine sulphate pulp at a consistency of 5% to a freeness of 33° SR (Schopper-Riegler). This was followed by the addition of 1.8% by weight of epichlorohydrin resin as a wet strength agent. This pulp suspension was adjusted to a pH of 6.5 with aluminum sulfate. A mixture of 30% by weight titanium dioxide and 5% by weight talc, 0.11% by weight of a retention aid and 0.03% by weight of a defoamer was then added to the pulp suspension. The weights relate to the weight of the pulp (atro).
  • a pulp suspension was prepared by grinding a pulp mixture of 80% by weight eucalyptus pulp and 20% by weight pine sulphate pulp at a consistency of 5% to a freeness of 33° SR (Schopper-Riegler). This was followed by the addition of 1.5% by weight of epichlorohydrin resin as a wet strength agent. This pulp suspension was adjusted to a pH of 6.5 with aluminum sulfate. Thereafter, a mixture of 10% by weight of silica (Aerosil 300) and 5% by weight of calcined kaolin (Ansilex 93), 1% by weight of CaCl 2 , 0.11% by weight of a retention aid and 0. 03% by weight of a defoamer added. The weights relate to the weight of the pulp (atro).
  • the two pulp suspensions were each used on one wire section and a decorative base paper with a basis weight and ash content corresponding to the values given in Table 1.
  • a decorative base paper in which the first and second fibrous layers are mechanically firmly connected to one another via the paper fibers.
  • the decor base paper produced in this way and also the comparison papers were printed with the aid of an ink-jet digital printing system from Palis (digital printing system palis 2250) and using commercially available, aqueous ink-jet inks.
  • the color density and print sharpness as well as the penetration and air permeability of the printed decor base paper were determined in the laboratory.
  • test results in Table 1 show that the decorative base papers 1 and 2 according to the invention have high opacity and can also be easily impregnated.
  • the examples according to the invention Compared to a commercially available light-colored decorative base paper (decorative base paper 3 in Table 1), the examples according to the invention have a significantly higher print sharpness and higher color densities.
  • Print sharpness and color density are comparable to a commercially available light decorative base paper with an ink receiving layer (decor base paper 4 in Table 1).
  • decorative base paper 4 shows a significantly poorer impregnation behavior and lower air permeability than decorative base papers 1 and 2 according to the invention, which is disadvantageous when the papers are processed.
  • the basis weight was determined according to DIN EN ISO 536.
  • the purpose of the test is to characterize the porosity of the paper structure and thus the ability to be impregnated.
  • the time required for a certain amount of air to flow through a paper surface at constant pressure is measured.
  • the measurement is carried out in accordance with ISO 5636-5 (2014) using the 121D densometer from Lorenzen & Wettre.
  • the readings are given in Gurley seconds/100 ml. Values of less than 25 s/hml indicate papers with very good air permeability. Values higher than 60 s/hml indicate a compacted structure and thus poor permeability.
  • the opacity was determined using an ACE colorimeter from Data Color in accordance with DIN 53146. The lower the value, the less opaque the paper and the more transparent it is.
  • Penetration is the time during which the paper is saturated with resin perpendicular to the plane of the paper.
  • a 70 ⁇ 70 mm sheet of decorative base paper is placed in a resin bath with the decorative side (the side to be printed) facing up. The time from application to complete soaking of the sheet is recorded.
  • a resin solution with 52% by weight resin is used for the resin bath. It is made by dissolving powdered melamine-formaldehyde resin (Kauramin 773) in distilled water heated to 45°C.
  • a value of less than 10 s must be achieved in order to ensure impregnation in normal processes without restrictions in the process parameters.
  • Image quality is evaluated by measuring the color density for the primary colors cyan, magenta, yellow and black.
  • the color densities are measured using the densitometer SpectroEye from x-rite. Starting from zero, increasing values mean increasing color density.

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EP21217264.7A 2021-12-23 2021-12-23 Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression Pending EP4202117A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21217264.7A EP4202117A1 (fr) 2021-12-23 2021-12-23 Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21217264.7A EP4202117A1 (fr) 2021-12-23 2021-12-23 Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression

Publications (1)

Publication Number Publication Date
EP4202117A1 true EP4202117A1 (fr) 2023-06-28

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EP21217264.7A Pending EP4202117A1 (fr) 2021-12-23 2021-12-23 Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0851058B1 (fr) 1996-12-11 2003-03-12 Voith Paper Patent GmbH Partie humide pour former une bande de papier multi-couches
EP1379729A1 (fr) 2001-03-28 2004-01-14 Technocell Dekor GmbH & Co. KG Papier support pour l'impregnation avec resines synthetiques
EP1207233B1 (fr) 2000-11-17 2005-01-05 Technocell Dekor GmbH & Co. KG Papier de base pour décoration ayant une opacité élevée
EP1627953A1 (fr) * 2004-08-05 2006-02-22 Bene-fit GmbH Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif
EP1749134A1 (fr) 2004-05-13 2007-02-07 Arjowiggins Procede de fabrication de papier decoratif et stratifie decoratif comportant un tel papier decoratif
FR2997421A1 (fr) * 2012-10-30 2014-05-02 Munksjo Arches Papier decoratif pour stratifies.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0851058B1 (fr) 1996-12-11 2003-03-12 Voith Paper Patent GmbH Partie humide pour former une bande de papier multi-couches
EP1207233B1 (fr) 2000-11-17 2005-01-05 Technocell Dekor GmbH & Co. KG Papier de base pour décoration ayant une opacité élevée
EP1379729A1 (fr) 2001-03-28 2004-01-14 Technocell Dekor GmbH & Co. KG Papier support pour l'impregnation avec resines synthetiques
EP1749134A1 (fr) 2004-05-13 2007-02-07 Arjowiggins Procede de fabrication de papier decoratif et stratifie decoratif comportant un tel papier decoratif
EP1627953A1 (fr) * 2004-08-05 2006-02-22 Bene-fit GmbH Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif
FR2997421A1 (fr) * 2012-10-30 2014-05-02 Munksjo Arches Papier decoratif pour stratifies.

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