WO2002079571A1 - Papier permettant la realisation de panneaux, et procede de production de papier - Google Patents

Papier permettant la realisation de panneaux, et procede de production de papier Download PDF

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Publication number
WO2002079571A1
WO2002079571A1 PCT/EP2001/003661 EP0103661W WO02079571A1 WO 2002079571 A1 WO2002079571 A1 WO 2002079571A1 EP 0103661 W EP0103661 W EP 0103661W WO 02079571 A1 WO02079571 A1 WO 02079571A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
mixture
acrylate
plate
dispersion
Prior art date
Application number
PCT/EP2001/003661
Other languages
German (de)
English (en)
Inventor
Dieter DÖHRING
Josef Stutz
Original Assignee
Kronospan Technical Company Ltd.
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 Kronospan Technical Company Ltd. filed Critical Kronospan Technical Company Ltd.
Priority to CNB018000053A priority Critical patent/CN100342080C/zh
Priority to US09/980,419 priority patent/US20030138600A1/en
Priority to EP01919414A priority patent/EP1272707A1/fr
Priority to PCT/EP2001/003661 priority patent/WO2002079571A1/fr
Priority to PL01357213A priority patent/PL357213A1/xx
Publication of WO2002079571A1 publication Critical patent/WO2002079571A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2377/00—Polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/04—Tiles for floors or walls
    • 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
    • D21H27/28—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 treated to obtain specific resistance properties, e.g. against wear or weather
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating

Definitions

  • the invention relates to a method for producing paper for plates and to a paper produced in accordance with the method.
  • the invention further relates to plates, in the manufacture of which paper is used, and to an associated manufacturing process.
  • a panel according to the invention can be processed into a panel.
  • a panel for example known from the document EP 090 6994 AI, is a generally elongated, thin plate which can be connected to other panels laterally, that is to say * on the longitudinal and transverse sides, for example via grooves and tongues. Panels connected in this way are used in particular as flooring or as wall cladding.
  • a plate is u. a. manufactured as follows.
  • a resin-soaked paper which is called “backing paper” is provided.
  • a carrier plate Above the backing paper, a carrier plate is arranged.
  • Another, soaked paper with resin is arranged above the plate. The two papers are with the plate at temperatures around 200 ° C pressed together to form the plate.
  • the paper arranged above the plate is regularly provided with a decor that determines the appearance of the plate from the top.
  • SiC particles or corundum grains can be rolled on the side with the decor before pressing in order to obtain a plate with a particularly resistant surface.
  • a layer of cellulose is additionally applied to the side with the SiC particles or the corundum.
  • the paper with the printed decor is called decorative paper.
  • the cellulose layer is referred to as an "overlay”.
  • the decorative paper is placed with the overlay above the carrier plate.
  • the decorative paper is then between the carrier plate and the overlay. Then the backing paper, backing plate,
  • Sawing and milling can be used to produce panels with the desired dimensions, tongue and groove on the side.
  • the panels are used in particular as floor coverings.
  • the carrier plate gives the panel mechanical stability.
  • the decor on the decor paper determines the appearance of the later wall or floor surface.
  • the layer made of corundum or SiC 2 ensures good resistance to abrasion and the like.
  • the backing paper counteracts warping of the carrier plate.
  • the overlay protects a surface of the Press in front of the otherwise protruding hard SiC 2 or corundum grains.
  • the papers used in the prior art generally have a weight of more than 70 g per square meter. If the value falls below the above value, the paper is not tearproof enough to be able to withstand the mechanical loads during plate production. The paper 10 also becomes so thin that it becomes too transparent to be used as decorative paper.
  • the object of the invention is the manufacture and provision of a paper which is substantially more tear-resistant and, in one embodiment, optically more opaque in color compared to the prior art mentioned at the beginning.
  • the object of the invention is the manufacture and provision of inexpensive plates in which the paper according to the invention is used.
  • the paper is impregnated with an acrylate-containing dispersion or mixture. Compared to an impregnation that is only carried out with a resin, the paper impregnated according to the process is considerably more tear-resistant.
  • the paper can have a weight per unit area of, for example, 30 g / m 2 and is nevertheless able to withstand the mechanical loads in the production of a plate in the manner mentioned at the beginning. Tests have even shown that the mechanical strength of the paper according to the invention is so high that the
  • Impregnation speed in the resin impregnation provided for the plate production can be increased from currently 40 to 60 m / min to 120 m / min.
  • the consumption of the paper material and the impregnating agent is correspondingly low - compared to the prior art mentioned at the beginning.
  • the acrylate-containing dispersion or mixture contains water in which acrylate particles are dispersed. Suitable acrylates are therefore those that are well dispersing.
  • the acrylate-containing dispersion or mixture is pressed into the paper for the purpose of impregnation.
  • the paper is passed through rollers that are pressed against each other.
  • the acrylate-containing dispersion or mixture is applied continuously to a roller. When the paper leaves the roller, the dispersion or mixture has been pressed into the paper.
  • the dispersed acrylate or the mixture is not only spread onto the paper, since then the dispersed acrylate or the mixture would not or only insufficiently penetrate into the paper. Pressing ensures that the dispersion or mixture penetrates the paper and the paper thus achieves the desired improved strength.
  • the paper is then provided with the dispersion or the mixture in such a way that additional resin which is used during the further processing into a plate does not penetrate into the paper, or at least only relatively slightly.
  • the paper is pressed in before the acrylate-containing dispersion or mixture is pressed in
  • the paper is impregnated with the dispersion or mixture containing acrylate, in particular on one side.
  • the air in the paper is so through the dispersion or
  • a resin-acrylate mixture or dispersion in particular an amino resin-acrylate mixture, is used for the impregnation.
  • paper weights up to one
  • Papers produced in this way are sufficiently tear-resistant with a suitable mixing ratio in order to be used, for example, as printing base paper in the manufacture of plates. It can be left to the person skilled in the art to find suitable mixing ratios by a few experiments.
  • the paper should not exceed an upper limit of 60 g / m 2 , preferably 40 g / m 2 , in order to achieve sufficiently high cost advantages. Optimal values are currently between 25 to 35 g / m 2 .
  • color pigments for example aluminum silicate, calcium carbonate, Ti0 2 , Al 2 0 3 or magnesium silicate, are added to the mixture. This greatly reduces light transmission.
  • Paper can be used very well as decorative paper due to its opacity and high opacity.
  • the acrylate-containing dispersion or mixture is pressed into deaerated paper from both sides. It has been shown that the paper then moves away from the Top up with the dispersion or mixture containing acrylate. Paper impregnated in this way is particularly suitable for the plate production mentioned at the outset.
  • the paper produced according to the method differs from the finish foils in particular in that the acrylate is in the paper and not only wholly or predominantly on the surface.
  • the splitting strength is considerably greater than that of the finish foils mentioned at the outset, as a steam test shows.
  • the water vapor test exposes paper to water vapor for two hours. In conventional paper, in contrast to the invention, cleavage occurs.
  • ua-SD ⁇ utopj-u hgemielle paper can then be used as backing paper or decorative paper in the manufacture of a plate in the manner mentioned above.
  • decorative paper is not only provided with abrasion-resistant particles such as silicon carbide or corundum particles on one side, but also with fibers and / or balls.
  • the fibers or balls consist of soft materials such as polyester, polyamide or glass.
  • the fibers and / or balls protect a press belt from damage during the pressing of a layer system which comprises the decorative paper. It is not necessary to provide an overlay above a layer with abrasion-resistant particles. This saves approx. 1/3 of the costs for impregnating the decorative paper and bring a layer with the overlay incurred in the prior art.
  • the impregnation of the decorative paper comprises in particular the following steps.
  • the decorative paper is impregnated with resin, in particular an amino resin, and abrasion-resistant particles are applied to one side with the decor.
  • the fibers and / or balls are then applied to this.
  • the result is that the fibers and / balls form a protective cover layer above the abrasion-resistant particles in a pressing device.
  • the method can be configured as follows.
  • a layer of an amino resin with abrasion-resistant particles in a special dispersion is also sprayed onto the decorative paper, the final basis weight - based on the dry weight of the base paper - being 100% to 250%. Spraying on the dispersion has proven to be advantageous, as can be seen from the publication WO 00/44984. In the following, it is expedient to ensure smoothing and uniform distribution of the sprayed-in dispersion by means of rollers.
  • the aforementioned dispersion preferably consists of 100 parts of an amino resin, 20 to 95 parts of an abrasive, ie abrasion-resistant substance, 0.5 to 2.5 parts of a silane coupling agent, 5 to 25 parts of a flow aid, 0.1 to 0.4 parts of one Wetting agent, 0.05 to 0.4 parts of a release agent and an amino resin hardener.
  • a melamine resin is used in particular as an amino resin, as a flow aid for example polyglycol ether, ⁇ -caprolactam or butanediol and as an abrasive substance for example silicon carbide with an average grain size of 60 to 160 ⁇ m or aluminum oxide in the form of corundum or from the melt with a grain size of 60 to 160 ⁇ m used. Any mixture of silicon carbide and aluminum oxide can also be provided.
  • Wise treated decorative paper applied.
  • the provision of a mixture further improves protection in a pressing device, since the additional resin then also contributes to the protection.
  • the thickness of the fibers or the diameter of the balls should preferably be chosen such that the corundum or silicon carbide particles are kept away from the corresponding surface of the press during the pressing of a corresponding layer system for the production of plates. This prevents damage due to hard silicon carbide or corundum particles.
  • the average diameter of the balls is preferably larger than the average diameter of the fibers if both fibers and balls are used.
  • the balls then provide the desired protective distance between the abrasion-resistant particles and, for example, a press belt.
  • the fibers in particular ensure that resin is fixed and counteract crack formation.
  • the affected surface of a press is protected by the invention in an improved and particularly inexpensive manner against damage by abrasion-resistant particles, for example hard corundum or silicon carbide particles.
  • abrasion-resistant particles for example hard corundum or silicon carbide particles.
  • the processing of the affected surfaces in a press - for example a press belt of a so-called double belt laminating system - takes place at correspondingly larger intervals, so that the costs associated with the processing and production downtimes are reduced. Overall, there are considerable cost savings.
  • Typical fiber lengths are at least 0.5 mm, but preferably at least a few millimeters, for example 2 mm, 4 mm or 5 mm.
  • An upper limit of the fiber length is given in particular by the associated increase in viscosity. If the viscosity of a resin-fiber mixture is too high, it can no longer be processed.
  • the diameter of the fibers is, for example, a few 10 ⁇ m or even 100 ⁇ m and more.
  • a typical diameter of the balls is 30 to 200 ⁇ m. On the one hand, the desired distance between the corundum or silicon carbide particles is thereby no guarantee of the corresponding surface in a press. On the other hand, the balls are small enough
  • optical impression is not adversely affected by the fibers or balls if they have the aforementioned dimensions and are embedded in the resin.
  • the fibers or balls preferably consist of polyester, polyamide or glass. These materials fulfill the properties that are required during production and after production. They are sufficiently stable during production. Polyester, polyamide or glass are sufficiently soft materials in the sense of the invention to avoid damage to a pressing device. In the case of a finished panel, the aforementioned materials create sufficient transparency so that the visual impression of the decor is not adversely affected.
  • the materials advantageously enable relatively large, processable fiber lengths which significantly exceed the length of fibers made of cellulose and used according to the invention.
  • the increase in viscosity with increasing fiber length of artificial polymers such as polyester, polyamide fibers or glass fibers is namely small in comparison to the increasing fiber length of cellulose fibers.
  • the fibers and / or balls can consist of different materials.
  • polyester fibers, polyamide fibers and glass fibers can be used at the same time.
  • Fibers should be preferred over spheres, as this avoids the formation of cracks in the surface.
  • Balls are therefore preferably used in addition.
  • Hollow balls made of glass are therefore preferably added as balls to reinforce the protective effect, which in particular have a diameter of 30 to 200 ⁇ m for the aforementioned reasons.
  • the decorative paper as claimed preferably has a solids mass of 25 to 35 g / m 2 .
  • the fiber content is then in particular 5 to 100 g / m 2 .
  • up to 80 g / m 2 balls, in particular hollow micro glass balls, are advantageously provided for reinforcement.
  • the fibers are in the form of a fleece.
  • the fibers are woven together, so to speak.
  • a fleece reinforces and protects in a particularly good way. The risk of crack formation is further reduced and thus the risk of damage to the upper part concerned in each case.
  • the resin fixes the resin particularly well during pressing.
  • the resin then contributes particularly well to protection in a pressing device. If a fleece is provided, the protective effect is further improved by introducing balls.
  • Paper with a weight of 30 g / m 2 is moistened on one side with an acrylate-containing dispersion.
  • the dispersion contains the following constituents: 770 g of a commercially available acrylate dispersion with a solids content of 50% by weight, 225 g of a commercially available urea-formaldehyde impregnating resin with a solids content of 50% by weight and 5 g of a urea resin hardener. The mixture is mixed finely stirred and applied.
  • the moistened paper is passed through rollers pressed against each other.
  • the rollers have a surface made of hard rubber.
  • the aforementioned dispersion is applied evenly to the rollers and distributed evenly on the roller surface with the aid of doctor blades.
  • Paper is dried and can then be used in the manufacture of boards.
  • Color pigments are added to the dispersion for the production of decorative paper, namely 250 g
  • the paper is then at least as opaque as conventionally produced paper with a weight of 70 g / m 2 .
  • the decorative paper is preferably used in the manufacture of a plate as follows. A mixture of amino resin and corundum particles is evenly sprayed onto the top of the decoration. 15 g / m 2 corundum is used. The now wet paper web is fed to a floating dryer. The temperature in the dryer is 170 ° C. A mixture of a commercially available amino resin and polyester fibers is metered onto the top of the decor onto the web treated in this way. The solids mass of the order is 70 g / m 2 . The fiber content in the mixture is 30
  • the average length of the fibers is 5 mm.
  • the average diameter is 80 ⁇ m.
  • a second drying step is then carried out at 160 ° C until the residual moisture is 7%.
  • the decorative paper impregnated in this way becomes one in the manner mentioned at the beginning
  • Paper according to the invention is also used as backing paper. In this way, 150 g / m 2 of resin can be saved in comparison with the prior art. However, the paper according to the invention also offers advantages over the prior art when the paper weight is very high, for example up to 150 g / m 2 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un procédé permettant la production d'un papier, se caractérisant en ce que le papier est imprégné avec une dispersion ou un mélange contenant de l'acrylate, la dispersion ou le mélange contenant de l'acrylate étant introduit dans le papier par compression. Des papiers produits grâce à ce procédé peuvent être utilisés pour le finissage de plaques, notamment de panneaux de revêtement de sol, même lorsque ceux-ci ont un grammage qui vaut seulement de 15 à 35 g/m2, ce qui permet de minimiser les coûts.
PCT/EP2001/003661 2001-03-30 2001-03-30 Papier permettant la realisation de panneaux, et procede de production de papier WO2002079571A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CNB018000053A CN100342080C (zh) 2001-03-30 2001-03-30 用于制造镶板的纸张及其相应的制造方法
US09/980,419 US20030138600A1 (en) 2001-03-30 2001-03-30 Paper for producing panels and paper-making method
EP01919414A EP1272707A1 (fr) 2001-03-30 2001-03-30 Papier permettant la realisation de panneaux, et procede de production de papier
PCT/EP2001/003661 WO2002079571A1 (fr) 2001-03-30 2001-03-30 Papier permettant la realisation de panneaux, et procede de production de papier
PL01357213A PL357213A1 (en) 2001-03-30 2001-03-30 Paper for producing panels and paper-making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/003661 WO2002079571A1 (fr) 2001-03-30 2001-03-30 Papier permettant la realisation de panneaux, et procede de production de papier

Publications (1)

Publication Number Publication Date
WO2002079571A1 true WO2002079571A1 (fr) 2002-10-10

Family

ID=8164360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/003661 WO2002079571A1 (fr) 2001-03-30 2001-03-30 Papier permettant la realisation de panneaux, et procede de production de papier

Country Status (5)

Country Link
US (1) US20030138600A1 (fr)
EP (1) EP1272707A1 (fr)
CN (1) CN100342080C (fr)
PL (1) PL357213A1 (fr)
WO (1) WO2002079571A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042644A1 (fr) 2003-09-30 2005-05-12 Kronospan Technical Company Limited Papier decoratif a corindon saupoudre et enduit d'un adhesif
WO2005090097A1 (fr) * 2004-02-20 2005-09-29 Kronospan Technical Company Ltd. Papier et panneau contenant du carbone
EP2177130A3 (fr) * 2008-10-14 2012-07-25 Fritz Egger GmbH & Co. OG Plaque pliable

Families Citing this family (13)

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Publication number Priority date Publication date Assignee Title
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WO2006133247A2 (fr) 2005-06-07 2006-12-14 E. I. Du Pont De Nemours And Company Papier et lamine de papier au dioxyde de titane modifie
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AU2012275788B2 (en) 2011-06-28 2017-04-13 E. I. Du Pont De Nemours And Company Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries
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CN104105761B (zh) 2011-10-28 2016-01-20 纳幕尔杜邦公司 具有改善的分散性的处理过的无机芯颗粒
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EP1272707A1 (fr) 2003-01-08

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