DE895524C - Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products - Google Patents

Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products

Info

Publication number
DE895524C
DE895524C DEB16720A DEB0016720A DE895524C DE 895524 C DE895524 C DE 895524C DE B16720 A DEB16720 A DE B16720A DE B0016720 A DEB0016720 A DE B0016720A DE 895524 C DE895524 C DE 895524C
Authority
DE
Germany
Prior art keywords
cardboard
chipboard
finishing
fiber
plywood panels
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
DEB16720A
Other languages
German (de)
Inventor
Hans Dr Scheuermann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB16720A priority Critical patent/DE895524C/en
Application granted granted Critical
Publication of DE895524C publication Critical patent/DE895524C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005Coating boards, e.g. with a finishing or decorating layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin

Description

Verfahren zur Veredlung der Oberflächen von Pappe, Holzfaser-, Holzspan- und Sperrholzplatten u. dgl. flächigen Faserstofferzeugnissen Es ist bekannt, die Oberflächen von. Pappe, Holzfaser-, Holzspan- und Sperrholzplatten u. dgl. flächigen Faserstofferzeugnissen mit Kuns.tharzlösungen zu tränken und nach Trocknen heiß zu verpressen. In gleicher Weise kann man Kunstharzfolien .oder mit härtbaren Harzen getränkte Papiere durch Heißpressen aufziehen und, so die Oberflächen dieser Erzeugnisse verbessern.Process for finishing the surfaces of cardboard, wood fiber, wood chip and plywood sheets and the like fibrous sheet-like products Surfaces of. Cardboard, wood fiber, chipboard and plywood panels and the like flat Soak fiber products with synthetic resin solutions and after drying, hot to press. In the same way you can use synthetic resin foils or with curable resins Soaked papers are stretched by hot pressing and so are the surfaces of these products to enhance.

Bei Deckschichten, die durch Bestreichen der Oberflächen der genannten Holzplatten mit Lösungen härtbarer Harze und anschließendes Pressen erzeugt wurden, besteht die Gefahr, daß sie beim Altern reißen oder daß mindestens feine Haarrisse auftreten.In the case of top layers, which are produced by painting the surfaces of the named Wooden panels were produced with solutions of curable resins and subsequent pressing, there is a risk that they will tear with aging or that at least fine hairline cracks appear.

Es wurde nun gefunden, daß diese Gefahr vermieden wird und sich außerdem sogar noch beson-.dere Effekte erzielen lassen, wenn man die Oberfläche nach Bestreichen mit Lösungen oder wäßrigen Dispersionen von Kunstharzen mit losen Faserstoffen, beispielsweise durch Aufblasen oder Aufsieben, bedeckt. Als Kunstharze eignen sich sowohl Thermoplaste als auch härtbare Harze, die so. weit kondensiert sind, daß sie klebende Eigenschaften haben und in der Lage sind, die aufgebrachten Fasern bis zum Pressen festzuhalten. Infolge ihrer Farblosigkeit, Oberflächenhärte und Wasserfestigkeit eignen sich besonders für diesen Zweck Harnstoff- und Melaminharze allein oder nach Zusatz, von Pigmenten oder Füllstoffen.It has now been found that this danger is avoided and moreover Even special effects can be achieved if the surface is coated afterwards with solutions or aqueous dispersions of synthetic resins with loose fibers, for example by inflating or sifting it open. As synthetic resins are suitable both thermoplastics and curable resins that do so. are widely condensed that they have adhesive properties and are able to handle the attached fibers to be held until pressed. As a result of their colorlessness, surface hardness and Urea and melamine resins are particularly suitable for this purpose alone or with the addition of pigments or fillers.

Als loses Fasermaterial können sowohl Gewebefasern als auch unverarbeitete Cell.ulosefasern verwendet werden. Sie können ungefärbt oder auch gefärbt sein. Man kann auch Gemische verschiedener Fasern oder Gemische verschied ten gefärbter Fasern verwenden. Es können auf diese Weise die verschiedenartigsten Oberflächeneffekte erzielt. werden. Ebenso lassen sich verschiedene Effekte je nach der Menge des ,aufgebrachten Fasermaterials erzielen.Both fabric fibers and unprocessed fibers can be used as loose fiber material Cellulose fibers are used. They can be uncolored or too colored be. Mixtures of different fibers or mixtures of different colored fibers can also be used Use fibers. A wide variety of surface effects can be created in this way achieved. will. Likewise, different effects can be created depending on the amount of, applied Achieve fiber material.

Wird die klebende Harzschicht nach dem Aufbringen der losen Fasern eventuell durch Walzen kalt zu einer glatten Oberfläche zusammengepreßt, dann kann diese Oberfläche noch mit irgendwelchen Mustern durch Anfärben oder Bedrucken der Fasern versehen werden. Wirdi eine besonders glänzende Oberfläche gewünscht, so ist es von Vorteil, die Faserschicht vor dem Pressen noch mit einer mehr oder minder reichlichen Menge Harzlösung zu übersprühen. Beispiels 6o Gewichtsteile Harnstoff werden. mit 17o Gewichtsteilen 3o°/o wäßrigem Formaldehyd neutral' etwa 1/4 Stunde in der Siedehitze kondensiert. Nach Ansäuern auf PH 4,5 wird- die. Kondensation so lange fortgesetzt, bis die Lösung klebende Eigenschaften aufweist. In diese Lösung ' werden ro Gewichtsprozent Titanweiß gerührt, und. dann wird, damit eine Holzfaserplatte dick- bestrichen. Durch ein Sieb wird faseriger Zellstoff getrieben und gleichmäßig auf den nassen Aufstrich gebracht. Nach einigen Minuten wird die Platte gewendet und .das überschüssige Fasermaterial durch leichtes Abklopfen entfernt. Nach kurzem Liegen, am besten, in bewegter Luft zwecks leichter Abtrocknung,der Oberfläche; wird die Platte in eine heiße Presse gebracht -und bei etwa 12io° verpreßt. Durch diese Behandlung hat die Holzfaserplatte eine büttenpapierähnliche Oberfläche erhalten.Becomes the adhesive resin layer after applying the loose fibers possibly pressed together cold by rolling to a smooth surface, then can this surface still with any patterns by coloring or printing the Fibers are provided. If a particularly glossy surface is desired, see this it is an advantage to cover the fiber layer with a more or less spray copious amounts of resin solution. Example 60 parts by weight of urea will. with 170 parts by weight of 30% neutral aqueous formaldehyde for about 1/4 hour condensed at the boiling point. After acidification to pH 4.5, the. condensation continued until the solution exhibits adhesive properties. In this solution 'ro weight percent titanium white are stirred, and. then it is made to make a fibreboard thickly coated. Fibrous pulp is forced through a sieve and evenly brought to the wet spread. After a few minutes, the plate is turned over and .the excess fiber material is removed by gently tapping it. After a short time Lying, ideally, in moving air for the purpose of easy drying, the surface; the plate is placed in a hot press and pressed at about 120 °. By this treatment gave the wood fiber board a surface similar to hand-made paper.

Beispiele Die gemäß Beispiel i hergestellte und oberflächenbehandelte Holzfaserplatte wird nach dem Abklopfen,des nicht anhaftenden Cellulosematerials mit -der verwendeten Kunstharzlösung leicht übersprüht und: nach :gutem Abtrocknen heiß verpreßt. Man erhält zum Unterschied von der Arbeitsweise nach Beispiel. x eine glänzende; spiegelglatte Oberfläche.Examples The one produced and surface-treated according to Example i Wood fiber board becomes after tapping, the non-adhering cellulose material - slightly sprayed over with the synthetic resin solution used and: after: drying well hot pressed. In contrast to the method of operation according to the example, one obtains. x a shiny one; mirror-smooth surface.

Claims (2)

PATENTANSPRÜCHE: 1. Verfahren zum Veredeln der Oberflächen von. Pappe, Holzfaser-, Holzspan- und Sperrholzplatten u. 4g1. flächigen Faserstofferzeugnissen,-dadurch gekennzeichnet, daß diese mit einer Harzschicht überzogen werden, darauf eine Schicht losen Fasermaterials gebracht und das Ganze heiß verpreßt wird,. PATENT CLAIMS: 1. Process for finishing the surfaces of. Cardboard, Wood fiber, chipboard and plywood panels and 4g1. flat fiber products, -thereby characterized in that these are coated with a resin layer, thereon a layer loose fiber material is brought and the whole thing is hot-pressed. 2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß auf die Faserschicht eine zweite Harzschicht, beispielsweise durch übersprühen, gebracht und dann das Ganze verpreßt wird.2. Procedure according to Claim 1, characterized in that a second resin layer, for example by spraying over, brought and then the whole thing is pressed.
DEB16720A 1951-09-13 1951-09-13 Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products Expired DE895524C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB16720A DE895524C (en) 1951-09-13 1951-09-13 Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB16720A DE895524C (en) 1951-09-13 1951-09-13 Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products

Publications (1)

Publication Number Publication Date
DE895524C true DE895524C (en) 1953-11-02

Family

ID=6959027

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB16720A Expired DE895524C (en) 1951-09-13 1951-09-13 Process for finishing the surfaces of cardboard, wood fiber, chipboard and plywood panels and the like. Like. Flat fiber products

Country Status (1)

Country Link
DE (1) DE895524C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941750C (en) * 1953-09-04 1956-04-19 Roemmler G M B H H Process for the production of plastic sheets
DE1213976B (en) * 1963-08-22 1966-04-07 Hoover Ball & Bearing Co Process for the continuous production of at least one surface finished from wood or other compressible materials
EP0277238A1 (en) * 1986-07-09 1988-08-10 Yamaha Corporation Decorative sheet and method of manufacturing the same
EP0371371A2 (en) * 1988-11-30 1990-06-06 Glunz Ag Method for producing a texture, particularly a wood-like texture, in the surface of a hardened fibre board

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941750C (en) * 1953-09-04 1956-04-19 Roemmler G M B H H Process for the production of plastic sheets
DE1213976B (en) * 1963-08-22 1966-04-07 Hoover Ball & Bearing Co Process for the continuous production of at least one surface finished from wood or other compressible materials
EP0277238A1 (en) * 1986-07-09 1988-08-10 Yamaha Corporation Decorative sheet and method of manufacturing the same
EP0277238A4 (en) * 1986-07-09 1989-09-11 Yamaha Corp Decorative sheet and method of manufacturing the same.
US4911969A (en) * 1986-07-09 1990-03-27 Yamaha Corporation Decorative sheet and method of manufacturing the same
EP0371371A2 (en) * 1988-11-30 1990-06-06 Glunz Ag Method for producing a texture, particularly a wood-like texture, in the surface of a hardened fibre board
EP0371371A3 (en) * 1988-11-30 1991-12-04 Glunz Ag Method for producing a texture, particularly a wood-like texture, in the surface of a hardened fibre board

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