EP0294825B1 - Ornamentale Schmuckplatte und Verfahren zu deren Herstellung - Google Patents

Ornamentale Schmuckplatte und Verfahren zu deren Herstellung Download PDF

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Publication number
EP0294825B1
EP0294825B1 EP88109265A EP88109265A EP0294825B1 EP 0294825 B1 EP0294825 B1 EP 0294825B1 EP 88109265 A EP88109265 A EP 88109265A EP 88109265 A EP88109265 A EP 88109265A EP 0294825 B1 EP0294825 B1 EP 0294825B1
Authority
EP
European Patent Office
Prior art keywords
cork
board
decorative board
pigment
producing
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
EP88109265A
Other languages
English (en)
French (fr)
Other versions
EP0294825A2 (de
EP0294825A3 (en
Inventor
Tadahiro Akita
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88109265T priority Critical patent/ATE76366T1/de
Publication of EP0294825A2 publication Critical patent/EP0294825A2/de
Publication of EP0294825A3 publication Critical patent/EP0294825A3/en
Application granted granted Critical
Publication of EP0294825B1 publication Critical patent/EP0294825B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F5/00—Designs characterised by irregular areas, e.g. mottled patterns

Definitions

  • This invention relates to a decorative board useful so as variety of woodwork and construction materials and a method for producing the same. More particularly, it relates to a decorative board presenting a marble-like pattern on its surface, and a method for producing the same.
  • the decorative board having the marble-like pattern printed on its surface is a plywood board on whose surface a coating layer resembling the surface of natural marble is applied by printing.
  • Such decorative board is producible in larger quantities and inexpensive, it is destitute of the feeling of natural marble and the sense of high quality goods, while the produced pattern tends to be free of variations proper to natural marble.
  • the present inventors have found that the difference in absorptivity to the paint of a cork bord obtained upon molding the chipped cork may be utilized for generating the marble-like gradation pattern on te cork plate surface. Such finding has led to fulfilment of the present invention.
  • a coating layer of a non-transparent paint containing a resin component and a pigment component is formed on the surface of a cork board obtained upon molding chipped cork with a suitable resin binder or adhesive.
  • the marble-like gradation pattern is formed in the coating layer as a result of the difference in absorptivity of the cork board.
  • a non-transparent paint containing a resin component and a pigment component and having a viscosity of not higher than 10 ⁇ 1 Pa.s (100 cps) is coated on the surface of the cork board obtained upon molding chipped cork in the presence of the resin binder, and the marble-like gradation pattern is formed as a result of the difference in absorptivity of the various surface areas of the cork board.
  • the decorative board of the present invention is useful in the field of interior decoration, as a result of the complicated and peculiar marble-like pattern formed on its surface, despite the fact that the pattern is formed simply upon forming the coating layer on the cork board.
  • the decorative board superior in massive feeling and the sense of high quality goods can be produced in larger quantities.
  • Fig. 1 is a diagrammatic perspective view of a cork board.
  • Fig. 2 is a partial enlarged plan view of the cork board.
  • Fig. 3 is a partial enlarged sectional view for illustrating the state of formation of the marble-like gradation pattern.
  • Fig. 4 is a diagrammatic perspective view of the decorative board to which the present invention is upplied.
  • Fig. 5 is a perspective view showing a typical flow coater employed for producing the decorative board of the present invention.
  • the decorative board of the present invention has a marble-like gradation pattern formed on its surface under utilization of the textural pattern of a cork base plate or board.
  • the amount of the pigment contained in the coating film formed on the surface of the cork board is defined so as to generate the marble-like gradation pattern on the cork board surface.
  • the crude cork that is, the bark of the cork oak
  • the resulting chips are admixed with a resin binder as an adhesive and formed into a board under application of elevated pressure and temperature.
  • the cork board 1 is in the form of a molded mass of an extremely large number of cork granules 2.
  • cork granules 2 constituting the cork board 1 vary in size and absorptivity to the paint.
  • the inner and outer bark portions of the cork oak be used as a mixture as the starting material.
  • the surface 1A of the cork board 1 obtained upon molding presents a large number of minute recesses 2 and crevice-like gaps or interstices 4 as a result of pressure molding of a large number of the cork granules of irregular shapes, as shown in Fig. 2.
  • the cork board 1 may be in the form of a panel, board or block, as desired.
  • the surface 1A of the cork board 1 is coated with a non-transparent paint containing the resin component and the pigment, so that, as shown in Fig. 4, a coating layer 5 presenting a marble-like pattern is formed on the surface 1A.
  • the coating film layer 5 applid to the surface 1A of the cork board 1 is absorbed into the recesses 3 or gaps 4 on the board 1 or into the cork granules 2a having higher absorptivity to the paint, such that the coating layer 5 remains as a thin film on the surface 1A and the textural color may be seen through the film at some portion of the board.
  • the coating layer 5 applied on the cork granules 2b having a lower absorptivity to the paint is absorbed into these granules only in minor amounts so that it remains as a thick film and strongly presents the pigment hue. In this manner, the coating layer 5 having locally different gradations in color tone and hence a marble-like pattern is formed on the surface 1A of the board 1.
  • the above pattern can be variegated as a result of a suitable selection of the molding conditions of the cork board 1, such as, for instance, the size of the cork granules.
  • the percentage of the pigment contained in the coating layer 5 is critical in producing the above pattern.
  • the contents of the resin component and the pigment component in the coating layer 5 are selected to be 80 to 90 percent by weight and 10 to 20 percent by weight, respectively.
  • the textural pattern of the cork board 1 is covered and is not seen visually.
  • the textural pattern may be seen excessively through the layer. In either cases, the marble-like pattern is not obtained.
  • any of the well-known resin materials may be employed. However, in view of pliability, urethane and acrylic resins are most preferred.
  • the pigment any of the well-known pigments presenting a white or gray color or a color similar to the textural color of the marble may be employed. Titanium white is most preferred. Other color pigments may be employed simultaneously depending on the desired color tone of the decorative board.
  • the above described non-transparent paint may be applied to the board 1 by some means or other.
  • a so-called flow coater is most preferred. It is difficult to produce a satisfactory marble-like pattern with the spray or roll coating.
  • the flow coater is shown for example in a perspective view of Fig. 5 and composed of a head 11 for causing the paint to flow down as a thin curtain of a predetermined width, a pump 12 for supplying the paint to the head 11 and a conveyor 13 for conveying an article to be painted through the paint curtain.
  • a head 11 for causing the paint to flow down as a thin curtain of a predetermined width
  • a pump 12 for supplying the paint to the head 11
  • a conveyor 13 for conveying an article to be painted through the paint curtain.
  • the head 11 includes a pair of head blocks 14, 14 at a predetermined gap therebetween and above the conveyor 13.
  • the gap size may be positively set by a constant pressure device and a stop device such that the coating volume of the paint may be adjusted by adjusting the gap size.
  • the paint is stored in a paint reservoir 15 and supplied by a pump 16 into the head 11 via supply pipe 17.
  • the conveyor 13 is formed by a belt 19 of synthetic resin placed between a pair of wide rolls 18, 18.
  • the cork board 1 is placed on the belt 19 and passed through the curtain of the paint 20 at the head 11 so that the paint is applied to the surface 11A.
  • the coating by the flow coater may be effected only once and for all, it is preferred that the coating be effected two or more times. At any rate, the number of times of the coating operations may be suitably set in dependence upon the absorptivity of the paint to the cork board 1.
  • composition In coating, the composition, viscosity and the coating volume represent critical factors.
  • the composition of the non-transparent paint be 35 to 40 percent by weight of the resin component, 5 to 10 percent by weight of the pigment and 50 to 60 percent by weight of the solvent.
  • such composition may be changed slightly depending on the kinds of the resin component.
  • the solvent contents be suitably adjusted so that the viscosity of the non-transparent paint is not higher than 10 ⁇ 1 Pa.s (100 cps.) The reason is that, with the viscosity of the non-transparent paint in excess of 10 ⁇ 1 Pa.s (100 cps), the paint is lowered in fluidity and absorptivity to the cork board 1.
  • the coating amount of the non-transparent paint directly after its application should be not higher than 15 g/m2, in view that an excess coating amount of the non-transparent paint results in covering or concealing the textural pattern of the cork board 1.
  • the non-transparent paint may be used in an amount not lower than 3 g/m2 and preferably not lower than 5 g/m2.
  • the various components may be mixed simultaneously.
  • the paint portion including the resin and the pigment, the hardener portion including the hardener and the solvent portion including a mixture of various solvents may be prepared separately and mixed at a predetermined ratio at the time of the coatnig operation.
  • the relative compositions of the paint, hardener and the solvent portions may be suitably selected so that the aforementioned composition may be realized ultimately.
  • the mixture ratio of the paint portion to the hardener portion may be selected to be 1 to 1, 2 to 1, 3 to 1, 4 to 1, 10 to 1 or 15 to 1, for example, according to the respective compositions.
  • the coated non-transparent paint usually undergoes a drying step so as to be formed into a coating layer.
  • spontaneous drying or hot-air drying may be used. Above all, drying by infrared or far-infrared rays is most preferred. With the use of infrared or far-infrared rays for drying, the paint may be dried promptly resulting in a shortened drying time and improved mass-producibility.
  • the cork oak was barked and dried to a crude cork material which was then chipped in a granulator, admixed with a resin binder, mixed under agitation and solidified under application of elevated pressure and temperature.
  • a resin binder the phenolic resin admixed with a minor amount of glycol was employed.
  • the solidified product was cut into a plate and the plate surface was ground to produce a cork board consisting essentially of a molded mass of an extremely large number of crushed chip granules.
  • the paint A or coating material and the hardener B having the following compositions were mixed at a ratio of 4 to 1 and the resulting mixture was admixed and diluted with a solvent C to a viscosity cup of 20 seconds or about 6 10 ⁇ 2 Pa.s (60 cps) to produce the non-transparent paint.
  • the prepared paint was uniformly applied twice on the overall surface of the cork board using a flow coater manufactured by Iwata Tosokiko K.K., Japan.
  • the coated paint was then dried by a far-infrared ray drier.
  • the produced decorative board presented a marble-like gradation pattern on its surface and resembled natural marble in appearance.
  • the paint was absorbed into the cork board at the crevice-like gaps and left on the surface as a thin film portion so that the textural color of the cork was exhibited slightly, while the paint was not absorbed on the flattened portions of the cork board surface and thus left on the surface as a thick film portion.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)
  • Adornments (AREA)

Claims (8)

  1. Schmuckplatte mit einer Korkplatte, die aus Korkschnitzeln gebildet ist, die durch einen Harzbinder gebunden sind, und mit einer Deckschicht, die auf der Korkplatte gebildet ist, wobei die Schicht eine nicht transparente Beschichtung ist, die eine Harzkomponente und eine Pigment enthält, das entsprechend dem Unterschied im Absorptionsvermögen verschiedener Teile der Tafel ein marmorähnliches Abstufungsmuster erzeugt, wobei das Pigment in der Deckschicht in einer Menge zwischen 10 und 20 Gew.-% vorhanden ist, und wobei die Korkkörnchen, welche die Korkplatte bilden, verschiedene Größen haben.
  2. Schmuckplatte nach Anspruch 1, bei der die Deckschicht 80 bis 90 Gew.-% einer Harzkomponente enthält.
  3. Schmuckplatte nach Anspruch 1 oder 2, bei der die Harzkomponente ein Harz auf Urethanbasis und das Pigment Titanweiß ist.
  4. Verfahren zum Herstellen der Schmuckplatte, umfassend das Auftragen eines nicht transparenten Beschichtungsmaterials, das eine Harzkomponente, ein Pigment, wobei das Pigment in der Deckschicht in einer Menge zwischen 10 und 20 Gew.-% vorliegt, und ein Lösungsmittel enthält, und das eine Viskosität von nicht mehr als 10⁻¹ Pas (100 cps) besitzt, auf die Oberfläche einer Korkplatte, die aus zerschnitzeltem Kork, der mit einem Harzbinder gebunden ist, gebildet ist, zum Herstellen eines marmorähnlichen Abstufungsmusters auf der Platte entsprechend dem Unterschied an Absorptionsvermögen der verschiedenen Teile derselben, wobei die Korkkörnchen, welche die Korkplatte bilden, verschiedene Größen haben.
  5. Verfahren zum Herstellen der Schmuckplatte nach Anspruch 4, wobei das nicht transparente Beschichtungsmaterial 35 bis 40 Gew.-% Harzkomponente, 5 bis 10 Gew.-% Pigment und 50 bis 60 Gew.-% Lösungsmittel enthält.
  6. Verfahren zum Herstellen der Schmuckplatte nach Anspruch 4 oder 5, wobei das nicht transparente Beschichtungsmaterial so aufgetragen wird, daß die aufgetragene Menge nicht größer als 15 g/m² ist.
  7. Verfahren zum Herstellen der Schmuckplatte nach Anspruch 4 bis 6, wobei das nicht transparente Beschichtungsmaterial mit einem Fließbeschichter auf die Oberfläche der Korkplatte aufgetragen wird.
  8. Verfahren zum Herstellen der Schmuckplatte nach Anspruch 4, wobei das beschichtete, nicht transparente Beschichtungsmaterial mit Infrarot- oder Fernes-Infrarotstrahlen getrocknet wird.
EP88109265A 1987-06-12 1988-06-10 Ornamentale Schmuckplatte und Verfahren zu deren Herstellung Expired EP0294825B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109265T ATE76366T1 (de) 1987-06-12 1988-06-10 Ornamentale schmuckplatte und verfahren zu deren herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP90387/87 1987-06-12
JP9038787 1987-06-12

Publications (3)

Publication Number Publication Date
EP0294825A2 EP0294825A2 (de) 1988-12-14
EP0294825A3 EP0294825A3 (en) 1989-01-25
EP0294825B1 true EP0294825B1 (de) 1992-05-20

Family

ID=13997167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109265A Expired EP0294825B1 (de) 1987-06-12 1988-06-10 Ornamentale Schmuckplatte und Verfahren zu deren Herstellung

Country Status (7)

Country Link
EP (1) EP0294825B1 (de)
JP (1) JPH0628948B2 (de)
AT (1) ATE76366T1 (de)
DE (1) DE3871242D1 (de)
ES (1) ES2031179T3 (de)
GR (1) GR3004663T3 (de)
PT (1) PT87708B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474933A1 (de) * 1990-09-13 1992-03-18 Miyamoto Toryo Co., Ltd. Verfahren zur Herstellung von verkleideten Dekorationswerkstücken und besagte Werkstücke
CZ10920U1 (en) * 2000-11-28 2001-02-26 Novum Holland S R O Decorative material for production of decorative and/or utility goods of arbitrary shapes, especially flat shapes
CN102962184B (zh) * 2012-11-22 2014-06-04 中华制漆（深圳）有限公司 一种仿大理石纹的表面处理方法及仿大理石纹装饰板
RU2672484C1 (ru) * 2017-10-11 2018-11-15 Денис Александрович Фомахин Способ получения художественного декоративного покрытия на поверхности плоских пробковых панелей

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3045210C2 (de) * 1980-12-01 1984-03-15 Basf Farben + Fasern Ag, 2000 Hamburg Pigmentierter Überzug und Verfahren zu seiner Herstellung
JPS58137472A (ja) * 1982-02-05 1983-08-15 Asahi Tokushu Gohan Kk 木質化粧板の製造方法
SE8404754L (sv) * 1984-09-24 1986-03-25 Olle Holmqvist Forfarande for framstellning av en monstrad, fergad yta pa ett foremal av i synnerhet tre- eller cellulosamaterial samt medelst forfarandet framstellt foremal

Also Published As

Publication number Publication date
DE3871242D1 (de) 1992-06-25
ATE76366T1 (de) 1992-06-15
EP0294825A2 (de) 1988-12-14
PT87708A (pt) 1989-05-31
PT87708B (pt) 1993-09-30
JPH0628948B2 (ja) 1994-04-20
GR3004663T3 (de) 1993-04-28
EP0294825A3 (en) 1989-01-25
ES2031179T3 (es) 1992-12-01
JPH01316261A (ja) 1989-12-21

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