GB1576140A - Board of wood material having decorative layer anchored tosurface thereof - Google Patents

Board of wood material having decorative layer anchored tosurface thereof Download PDF

Info

Publication number
GB1576140A
GB1576140A GB53731/77A GB5373177A GB1576140A GB 1576140 A GB1576140 A GB 1576140A GB 53731/77 A GB53731/77 A GB 53731/77A GB 5373177 A GB5373177 A GB 5373177A GB 1576140 A GB1576140 A GB 1576140A
Authority
GB
United Kingdom
Prior art keywords
woven fibre
fibre material
thermoplastic
sheet
wood
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.)
Expired
Application number
GB53731/77A
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.)
Holtzmann & Cie AG
Original Assignee
Holtzmann & Cie AG
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 Holtzmann & Cie AG filed Critical Holtzmann & Cie AG
Publication of GB1576140A publication Critical patent/GB1576140A/en
Expired legal-status Critical Current

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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/02—Superimposing layers
    • 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
    • B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
    • 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
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/70—Other properties
    • B32B2307/728—Hydrophilic
    • 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
    • B32B2451/00—Decorative or ornamental articles
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)

Description

(54) A BOARD OF WOOD MATERIAL HAVING DECORATIVE LAYERS ANCHORED TO SURFACE THEREOF (71) We, E. HOLTZMANN & CIE AG., a German Body Corporate, of 7566 Weisenbachfabrik (Murgtal/Baden), West Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The invention relates to a board of wood material having a decorative layer anchored to the surface thereof.
The surface treatment of wood fibreboards and flat pressed particle boards, so-called "chipboards", using carrier strips impregnated with hardenable condensation resins is already known. These are pressed, under the action of heat, on to one or both surfaces of the boards. The impregnated carrier strips generally contain considerable proportions of pigments having a relatively high refractive index, e.g. titanium dioxide, iron oxide, zinc sulphide, chromate, or organic dyes. In the untreated state they are known as decorative papers. Such decorative papers are manufactured, printed and unprinted, with basis weights of 60 to 150 g/m2 and pigment contents of up to 35%. Depending on the given technical requirements, these decorative papers are treated with resin in an amount up to about 100 to 200% by weight, referred to the weight of the paper.
The paper thus treated can then be pressed, under the action of heat, on to the surface of chipboards and the like.
Various completely condensed paper or non-woven impregnated materials in foil form which are provided on their rear side with heat seal coatings are known. These may likewise be pressed on to chipboards or similar supports under the action of heat.
In this connection, the top surfaces of such materials are coated with lacquers corresponding to the proposed application, which can be applied both before and after the pressing procedure. In the case of these paper or non-woven impregnated materials the amount of resin impregnated is at most only 50 to 100%, referred to the weight of the paper, so that the foil to be glued to the wood surface has a sufficient interlaminar strength throughout its layer thickness.
The replacement of heat seal coatings of such foils by the use of interposed thermoplast foils is also known, and has achieved a certain degree of importance, particularly for coating relatively thin chipboards up to 6 mm thick.
It is known to use decorative laminate plates for surface coating purposes, said plates being stuck to the appropriate wooden materials by means of a glue based on polyvinyl acetate, urea-melamine, or so-called solvent adhesives.
The prior art is further augmented by processes in which the chipboard surfaces are directly coated by means of liquid or pasty, and in general pigmented, lacquer systems.
Foils consisting exclusively of thermoplastic material are likewise applied by means of suitable adhesives to wood materials, using known methods.
Finally, papers the contain synthetic fibres are also known. These can be heat sealed and can be ironed on various surfaces. On account of the nature of the paper however there is insufficient interlaminar strength in the case of fairly thick layers, with the result that thicker layers tend to crack and some of the layer flakes or peels off, particularly at mechanically damaged sites.
All the prior art coatings are substantially based on the requirement that the wood material, on account of its relatively poor resistance to environmental factors such as light, temperature, moisture, alkalis, acids, solvents and detergents, has to be protected by a surface layer. In this connection, an attempt will be made to improve the in many cases unattractive board surface by suitable decoration. For many applications the mechanical strength of this surface is also intended to be increased by the surface coating.
Wood fibreboards as well as flat pressed particle boards are particularly used in interior construction work and in furniture manufacture, in which connection high quality requirements are placed on the strength of the material and also on its optical appearance characteristics. The requirements placed on such processed wood materials cover a wide spectrum and require the manufacturer, while giving priority to economic aspects, to produce the widest possible harmonization with the area of application and the resultant use properties.
Thus, for example, a kitchen work surface has to withstand stresses as regards chemical resistance, temperature resistance and scratch resistance, that are quite different to those that a cupboard rear wall, which generally only has a decorative function, possibly combined with a limited degree of washability, to fulfil. It is therefore desired that the surface coating for a given base material can be easily adapted, and without costly modifications of the manufacturing process, to specific areas of application.
The object of the present invention is to provide a board of wood material having a decorative layer which can be produced in many different embodiments at a favourable cost.
A paper sheet-like product, formed as starting material, can be pressed, by the action of heat and pressure, onto the surface of wood materials such as wood fibreboards and flat pressed particle boards. Such a non-woven fibre material offers the possibility for the first time of completely covering and colouring the substrate (wood material) by the thermoplasticization method, with basis weights of less than 100 g/m2, for example 60 g/m2, and pigment proportions of between 20 and 30%, depending on the shade. It is found by calculation that with a 60 g/m2 basis weight foil, 12 to 18 g/m2 of pigment may be applied.
Accordingly, the present invention provides a board of wood material having a decorative layer anchored to the board surface by heat and pressure wherein the layer comprises at least one thermoplasticized sheet-like support which, prior to being anchored to the board, has a basis weight of less than 100 g/m2 and comprising a non-woven fibre material containing a predominant proportion by weight of thermoplastic synthetic fibres less than 8 mm in length and at least one pigment having a refractive index greater than 2'0.
In contrast to the conventional methods, such a sheet-like support does not require any additional treatment with resin, since the desired foil character is produced by the thermoplasticization. The decorative layer surprisingly can be securely anchored to the most widely differing types of wood surfaces without having to employ further measures, and using only the effect of temperature and pressure. The sheet-like support, which is initially like paper and has relatively low strength values, hardens and consolidates under the effect of temperature and assumes a foil character as soon as anchoring has taken place. The initial flexibility of the sheet-like support and its paper-like character have opened up quite new ways of afterforming, which hitherto led to difficulties in the case of the relatively brittle impregnated materials. On account of its thermoplastic character, such a sheet-like support has excellent embossing properties. Relatively stable veneer textures can for example be applied. In addition, the sheet-like support is extremely suitable as a printing support for decorative photogravure printing.
Of great economic advantage is the fact that by applying specific lacquer systems, possibly based on alkyd resins, an absolutely reliable hot mould release is ensured, which means that processing can be carried out on so-called short cycle presses. Similarly, by means of appropriate lacquer systems, preferably of a cross-linked type, on the one hand an additional surface protection and on the other hand an adhesion adjusting property for further coatings, possibly based on nitro laquers, are created.
Preferably, the sheet-like support comprises cellulose, whose proportions are between 20 and 50% by weight, of the total fibre weight. By virtue of the presence of cellulose, the non-woven fibre material remains substantially dimensionally stable, in contrast to pure thermoplast foils.
In order to provide a better bonding of the pigments and thermoplastic fibres to the cellulose, it may be advantageous in this connection to use for example one or more cationic polyamide resins as additives, for example in an amount of 0.11.2% -by weight oven dry, of the total fibre weight.
In order to improve the manufacturing process, the non-woven fibre material preferably contains hydrophilic polyethylene and/or polypropylene fibres. It is expedient if the non-woven fibre material has a relatively high air permeability. In this way it will be possible, even after applying the decorative layer, to carry out drying processes or reactions in which moisture or reaction gases can pass substantially unhindered through the porous non-woven fibre material.
Pigments such as titanium dioxide, zinc sulphide, iron oxide, chromium oxide, lead chromate, lead molybdate, and organic pigments, are suitable for use, individually or in a mixture.
A laminate comprising a board of wood material, in particular a chipboard with a decorative layer anchored to the board surface under the action of heat and pressure, and which contains thermoplastic synthetic fibres, is constructed in such a way that the decorative layer comprises a thermoplastic non-woven fibre material with a predominant proportion by weight of thermoplastic synthetic fibres, and the thermoplastic synthetic fibres together with the pigments and additives form a layer of high interlaminar strength. In particular, the high interlaminar strength that is produced is regarded as one of the especially advantageous properties of such a coating for wood materials and substances.
In this connection, the decorative layer may consist of a plurality of non-woven fibre materials thermoplasticized together.
By laying one or more sheet-like supports on top of one another, the layer thickness and the surface properties may easily be adjusted in a desirable manner to the given objective.
It has also surprisingly been found that the thermoplastic non-woven fibre material combines, during the pressing stage, with duroplasts of high strength. Thus, the thermoplasticized sheet-like support may basically be bonded both to a duroplastic substrate and also to a duroplastic covering layer for purposes of mechanical surface protection.
Obviously, the thermoplastic nature of the non-woven fibre material also enabks a thermoplasticization or a thermoplastic forming stage, e.g. via heated roller systems, to be carried out before the anchoring to the wood material, which under certain circumstances can provide advantages for a subsequent lacquer application as regards the absorption behaviour, and also an improvement in the printability, particularly in photogravure work.
Compared with the gluing technique using aqueous adhesives; the dry laminating of wood substances with a sheet-like support has the advantage that swellng phenomena are practically excluded, and for example deformation of flat surfaces is thereby prevented.
A non-woven fibre material may be obtained if the thermoplastic synthetic fibres in a minimum proportion above 50% by weight, together with the cellulose and a content of pigments having a refractive index greater than 2.0 in an amount of up to 35% by weight, are extracted as a non-woven fibre material from an aqueous pulp in the paper manufacturing process. A particular advantage is the fact that the non-woven fibre material can be produced on a conventional paper or non-woven material machine.
The application of decorative layers to board surfaces enables an economic surface coating for wood substances of various types to be obtained, which uses a plasticized non-woven fibre material, as starting substance, that can easily be prepared in a basic form similar to paper, and that can be stored in a small amount of space in various decorative embodiments.
EXAMPLE OF EMBODIMENT: 500 kg of hydrophilic polyethylene fibres (average fibre length 1.5 mm) are added to 10,0001 of water.
In a second batch 180 kg of birchwood sulphate cellulose, 90 kg of spruce sulphite cellulose, 50 kg of titanium dioxide (rutile) and 220 kg of iron oxide pigment are added to and dispersed in 8,000 1 of water, and refined by disc refiners to 350 (according to Schopper-Riegler).
After refining, this second batch is mixed with the thermoplastic fibre suspension and 60 1 of a 20% polyamide-amine-epichlorhydrin resin solution and 18 kg of predissolved sodium aluminate are added thereto.
This mixture is processed in a conventional manner on a paper machine. The pH value is adjusted to 7 before the sheet formation by means of Al2(SO4)2.. The end product has a uniformly coloured surface that satisfactorily covers the wood surface, and has a basis weight of 60 g/m2. The nonwoven fibre material produced in this way is conveniently smoothed at approximately 900C by means of super calenders, whereby a thermoplasticization or a thermoplastic formation is to some extent obviated.
The calendered product is provided in a photogravure process with a wood decoration and in the same process with a lacquer coating of 3-6 g/m2.
The non-woven fibre material produced in the described manner is pressed at 1500C on to the chipboard in a short cycle press, and in removed hot from the latter after 10 seconds.
In an accompanying diagram, the partially pressed, printed and lacquered non-woven fibre material is shown bonded to a chipboard. The diagram shows a chipboard 1 with a non-woven fibre material 2, which has a decorative printed layer 3 and an outer lacquer layer 4.
WHAT WE CLAIM IS: 1. A board of wood material having a decorative layer anchored to the board surface by heat and pressure wherein the layer comprises at least one thermoplasticized sheet-like support which, prior to being anchored to the board, has a basis weight of less than 100 g/m2 and comprising a non-woven fibre material containing a predominant proportion by weight of thermoplastic synthetic fibres less than 8 mm in length and at least one pigment having a refractive index greater than 2.0.
2. A board according to claim 1, wherein the sheet-like support comprises cellulose, in an amount of from 20 to 50% by weight of the total fibre weight.
3. A board according to claim 2, wherein
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    decorative layer comprises a thermoplastic non-woven fibre material with a predominant proportion by weight of thermoplastic synthetic fibres, and the thermoplastic synthetic fibres together with the pigments and additives form a layer of high interlaminar strength. In particular, the high interlaminar strength that is produced is regarded as one of the especially advantageous properties of such a coating for wood materials and substances.
    In this connection, the decorative layer may consist of a plurality of non-woven fibre materials thermoplasticized together.
    By laying one or more sheet-like supports on top of one another, the layer thickness and the surface properties may easily be adjusted in a desirable manner to the given objective.
    It has also surprisingly been found that the thermoplastic non-woven fibre material combines, during the pressing stage, with duroplasts of high strength. Thus, the thermoplasticized sheet-like support may basically be bonded both to a duroplastic substrate and also to a duroplastic covering layer for purposes of mechanical surface protection.
    Obviously, the thermoplastic nature of the non-woven fibre material also enabks a thermoplasticization or a thermoplastic forming stage, e.g. via heated roller systems, to be carried out before the anchoring to the wood material, which under certain circumstances can provide advantages for a subsequent lacquer application as regards the absorption behaviour, and also an improvement in the printability, particularly in photogravure work.
    Compared with the gluing technique using aqueous adhesives; the dry laminating of wood substances with a sheet-like support has the advantage that swellng phenomena are practically excluded, and for example deformation of flat surfaces is thereby prevented.
    A non-woven fibre material may be obtained if the thermoplastic synthetic fibres in a minimum proportion above 50% by weight, together with the cellulose and a content of pigments having a refractive index greater than 2.0 in an amount of up to 35% by weight, are extracted as a non-woven fibre material from an aqueous pulp in the paper manufacturing process. A particular advantage is the fact that the non-woven fibre material can be produced on a conventional paper or non-woven material machine.
    The application of decorative layers to board surfaces enables an economic surface coating for wood substances of various types to be obtained, which uses a plasticized non-woven fibre material, as starting substance, that can easily be prepared in a basic form similar to paper, and that can be stored in a small amount of space in various decorative embodiments.
    EXAMPLE OF EMBODIMENT:
    500 kg of hydrophilic polyethylene fibres (average fibre length 1.5 mm) are added to 10,0001 of water.
    In a second batch
    180 kg of birchwood sulphate cellulose,
    90 kg of spruce sulphite cellulose,
    50 kg of titanium dioxide (rutile) and
    220 kg of iron oxide pigment are added to and dispersed in 8,000 1 of water, and refined by disc refiners to 350 (according to Schopper-Riegler).
    After refining, this second batch is mixed with the thermoplastic fibre suspension and 60 1 of a 20% polyamide-amine-epichlorhydrin resin solution and 18 kg of predissolved sodium aluminate are added thereto.
    This mixture is processed in a conventional manner on a paper machine. The pH value is adjusted to 7 before the sheet formation by means of Al2(SO4)2.. The end product has a uniformly coloured surface that satisfactorily covers the wood surface, and has a basis weight of 60 g/m2. The nonwoven fibre material produced in this way is conveniently smoothed at approximately 900C by means of super calenders, whereby a thermoplasticization or a thermoplastic formation is to some extent obviated.
    The calendered product is provided in a photogravure process with a wood decoration and in the same process with a lacquer coating of 3-6 g/m2.
    The non-woven fibre material produced in the described manner is pressed at 1500C on to the chipboard in a short cycle press, and in removed hot from the latter after 10 seconds.
    In an accompanying diagram, the partially pressed, printed and lacquered non-woven fibre material is shown bonded to a chipboard. The diagram shows a chipboard 1 with a non-woven fibre material 2, which has a decorative printed layer 3 and an outer lacquer layer 4.
    WHAT WE CLAIM IS: 1. A board of wood material having a decorative layer anchored to the board surface by heat and pressure wherein the layer comprises at least one thermoplasticized sheet-like support which, prior to being anchored to the board, has a basis weight of less than 100 g/m2 and comprising a non-woven fibre material containing a predominant proportion by weight of thermoplastic synthetic fibres less than 8 mm in length and at least one pigment having a refractive index greater than 2.0.
  2. 2. A board according to claim 1, wherein the sheet-like support comprises cellulose, in an amount of from 20 to 50% by weight of the total fibre weight.
  3. 3. A board according to claim 2, wherein
    the sheet-like support contains one or more cationic polyamide resins to fix the pigments and thermoplastic fibres to the cellulose.
  4. 4. A board according to any one of claims 1 to 3, wherein the non-woven fibre material contains hydrophilic polyethylene and/or polypropylene fibres.
  5. 5. A board according to any one of claims 1 to 4 wherein the non-woven fibre material has a high air permeability.
  6. 6. A board according to any one of claims 1 to 5 wherein one or more of titanium dioxide, zinc sulphide, iron oxide, chromium oxide, lead chromate, lead molybdate and organic pigments are used as pigments.
  7. 7. A board according to any one of claims 1 to 6 wherein the non-woven fibre material carries a surface lacquer system, preferably of the cross-linked type.
  8. 8. A board according to any one of claims 1 to 7 wherein the wood material is chipboard.
  9. 9. A board according to any one of claims 1 to 8 wherein the decorative layer comprises a plurality of non-woven fibre materials thermoplasticized together.
  10. 10. A board according to any one of claims 1 to 9 wherein a duroplast protective layer is anchored to the surface of the thermoplasticized sheet-like support.
  11. 11. A board according to any one of claims 1 to 9 wherein the thermoplasticized sheet-like support is bonded to a duroplast base layer.
GB53731/77A 1976-12-24 1977-12-23 Board of wood material having decorative layer anchored tosurface thereof Expired GB1576140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2658784A DE2658784C3 (en) 1976-12-24 1976-12-24 Use of a thermoplastic fiber fleece

Publications (1)

Publication Number Publication Date
GB1576140A true GB1576140A (en) 1980-10-01

Family

ID=5996595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53731/77A Expired GB1576140A (en) 1976-12-24 1977-12-23 Board of wood material having decorative layer anchored tosurface thereof

Country Status (4)

Country Link
DE (1) DE2658784C3 (en)
FR (1) FR2375382A1 (en)
GB (1) GB1576140A (en)
IT (1) IT1092219B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470631A (en) * 1990-04-03 1995-11-28 Masonite Corporation Flat oriented strand board-fiberboard composite structure and method of making the same
US7348040B2 (en) 2002-04-26 2008-03-25 Okt Kunststofftechnik Gmbh Method for improving characteristics of resin coated papers comprising applying a solution of one or more alkaline metal salts

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010060A1 (en) * 1980-03-15 1981-10-01 Letron GmbH, 8750 Aschaffenburg MULTI-LAYERED PLATE HAVING A VARNISH SURFACE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
CA2039559C (en) * 1990-04-03 1996-11-19 John T. Clarke Oriented strand board-fiberboard composite structure and method of making the same
DE9206299U1 (en) * 1992-05-11 1992-10-15 Alpenvelour Österreich Hutstumpenerzeugung Ges.m.b.H., Werfen Sheet or layer consisting of at least one felt and/or loden layer and a fixing layer
DE102004056130B4 (en) * 2004-11-16 2008-04-17 Kronotec Ag Wood fiber insulation board with finished surface

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE475208A (en) * 1942-05-25 1900-01-01
US3737371A (en) * 1968-06-19 1973-06-05 Mead Corp High opacity paper
US3669829A (en) * 1969-02-04 1972-06-13 Montedison Spa Paper and paper-like fibrous structures from mixtures of natural, artificial and synthetic fibers
FR2096929A1 (en) * 1970-07-07 1972-03-03 Rhodiaceta Particle board panels - glazed with a pulped polyamide dressing in a single pressing operation
US3684649A (en) * 1970-11-27 1972-08-15 Weyerhaeuser Co Resin-impregnated tissue overlays
NL7105985A (en) * 1971-05-03 1972-11-07
JPS5215685B2 (en) * 1972-11-24 1977-05-02
JPS5623769B2 (en) * 1973-01-11 1981-06-02
DE2335859A1 (en) * 1973-07-14 1975-01-30 Alfred Gasterstaedt Fa Decorative finishing top layer for laminates - consists of resin impregnated paper, cardboard or fleece
LU69149A1 (en) * 1974-01-11 1975-12-09
IT1005878B (en) * 1974-03-25 1976-09-30 Montedison Spa SHEETS AND FILMS OF PAPER-LIKE POLYOLEPHIC MATERIAL AND PROCEDURE FOR OBTAINING THEM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470631A (en) * 1990-04-03 1995-11-28 Masonite Corporation Flat oriented strand board-fiberboard composite structure and method of making the same
US5718786A (en) * 1990-04-03 1998-02-17 Masonite Corporation Flat oriented strand board-fiberboard composite structure and method of making the same
US7348040B2 (en) 2002-04-26 2008-03-25 Okt Kunststofftechnik Gmbh Method for improving characteristics of resin coated papers comprising applying a solution of one or more alkaline metal salts

Also Published As

Publication number Publication date
IT1092219B (en) 1985-07-06
DE2658784A1 (en) 1978-07-13
DE2658784B2 (en) 1979-06-13
FR2375382A1 (en) 1978-07-21
DE2658784C3 (en) 1983-12-08
FR2375382B1 (en) 1982-11-12

Similar Documents

Publication Publication Date Title
CA2186080C (en) Recoatable decorative sheet and recoatable decorative material
US3223579A (en) Pigment coated paper including polyvinyl alcohol binder as hardboard overlay
RU2427678C1 (en) Decorative impregnated paper used for printing by ink-jet printing method, method for its obtaining, and application
US5102502A (en) Manufacture of highly compressed paper containing synthetic fibers
US4044185A (en) Decorative sheet for solid color laminates
CA2453105C (en) Prepreg which is produced by impregnating a base paper with a heat-curing resin free from formaldehyde
KR0163470B1 (en) Film composite
US7919144B2 (en) Sheet-or web-like, decorative coating film and method for producing the same
CA1093451A (en) Decorative laminate comprising an inherently gluable backing sheet and processes for making same
NZ328306A (en) Melamine formaldehyde resin coated decorative paper
US4140566A (en) Reinforced sheet-type wallcovering
US6001490A (en) Single-sided impregnated printing paper carriers
GB1576140A (en) Board of wood material having decorative layer anchored tosurface thereof
AU2389699A (en) Microveneer decorative laminate and method of making and articles made therefrom
WO2022084586A1 (en) Impregnated core paper for decorative laminate
JPH0547665Y2 (en)
JPH11179852A (en) Decorative sheet for recoating
JPS5848347B2 (en) Decorative material manufacturing method
JP4759777B2 (en) Decorative material, decorative sheet, and method for manufacturing decorative material and decorative sheet
US20060165976A1 (en) Release sheets for laminated materials
EP1322816B1 (en) Method for processing paper strips intended for the manufacture of paper that is to be impregnated with synthetic resins
EP1454017A1 (en) Method for releasing laminated materials
JPH0814080B2 (en) Reinforcement paper for decorative paper
GB2024712A (en) Laminar overlay
JPH08309951A (en) Manufacture of heat curable resin decorative material

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931223