JP2007296821A - Ornamental decorating plate, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ornamental decorating plate which can industrially manufactured in such a manner that a recess section is formed on a coating film by a laser processing, and an ornamental material is applied without staining the peripheral area of the recess section. <P>SOLUTION: The coating film 11 made of a thermoplastic resin is formed on the surface of a base material 10 which has a plate shape of an MDF or the like, and the recess section 13 (engraving) corresponding to a specified pattern is formed with a shallow depth by laser-processing the surface internal section of the coating film 11. Then, an ornamental section 15 is formed by applying an ink on the recess section 13, and in addition, a clear resin layer or the like is laminated when required. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a decorative decorative board and a manufacturing method thereof, and more particularly to a decorative decorative board in which a concave portion is provided on a coating film provided on a base material to decorate the concave portion and a manufacturing method thereof.

  Among crafts, lacquered and gold, silver, tin powder and colored powder are used to express patterns. Such crafts are considered to be one of the decoration techniques in traditional crafts and are considered to have excellent artistic decoration and high value, but only require many years of skill and know-how to produce. In addition, there are disadvantages that do not have industrial mass production characteristics such as slow drying and high humidity conditions during curing.

  Therefore, in order to be able to perform such decoration industrially, there is a technique in which a recess is formed in the sheet, and an adhesive added with a powder such as gold or silver and a color pigment is applied to the recess. It has been proposed (see, for example, Patent Document 1). Moreover, the method of forming the recessed part which makes a decoration area | region with a laser is also known (for example, refer patent document 2).

JP-A-5-269952 JP 2001-1694 A

  However, in the method described in Patent Document 1, an adhesive containing a powder such as gold and a color pigment is adhered to the peripheral surface of the roll, and the doctor blade is transferred to a sheet having a recess. In this configuration, the adhesive transferred to the region other than the concave portion is scraped off. Therefore, there is an inconvenience that areas other than the recesses are easily soiled. Further, since the concave portion is formed on the sheet using the embossing roll provided with the convex portion, a different embossing roll is required when changing the pattern, and there is a disadvantage that the equipment cost increases.

  Further, Patent Document 2 is a method in which a concave portion is formed on a wooden base material with a laser, and the surface of the base material is clogged with burned residue, which causes the inconvenience of fouling the surface of the base material. . This is because the wooden base material is a porous structure, and there are innumerable holes when viewed microscopically.

[Object of invention]
The present invention has been devised by paying attention to such inconveniences. The purpose of the present invention is to form a predetermined engraving (recess) on the basis of pre-input data and to form a recess by laser processing. However, it is providing the decorative decorative board which can be produced industrially by performing a predetermined decoration without fouling the periphery of the recess.

  In order to achieve the above object, the present invention provides a base material, a coating film provided on the surface of the base material, a recess formed with a laser so as to have a depth equal to or less than the thickness of the coating film, and the recess The decoration part provided in is provided.

  In addition, the present invention employs a technique in which after a coating film is provided on the surface of the base material, a recess having a depth less than or equal to the thickness of the coating film is formed by a laser, and then a decorative portion is provided in the recess. ing.

  As shown in FIGS. 1 and 2, the present invention includes a plate-like base material 10, a coating film 11 applied to one surface (upper surface) of the base material 10, and the thickness of the coating film 11 or less. Basically, the configuration includes a concave portion 13 having a depth of 10 mm and a decorative portion 15 provided in the concave portion 13.

The base plate 10 includes plywood and LVL (Laminated Veneer).
Lumber) / wood such as laminated wood, or woody material (engineering wood) such as MDF / particle board / wood powder molding material (plastic wood) can be used. Further, the base plate 10 may be configured by laminating, for example, phenol resin-impregnated paper or DAP resin-impregnated paper as the surface decorative material of wood or wood. The coating film 11 can be formed by applying a thermosetting resin paint such as unsaturated polyester. The decorating part 15 can be formed by, for example, applying a reactive enamel paint or reactive ink, or filling the reactive clear resin and exposing the contour of the recess as a decorative part. it can.

  The coating film 11 is engraved (recessed) with a specified pattern depth by, for example, a laser of a laser processing machine (laser engraving machine) that can be digitally controlled based on pre-input data. As for the laser processing conditions, it is necessary to select optimum conditions depending on the depth of the concave portion of the material to be used, the thickness of the decorative portion, and the like.

  After the decoration part 15 is formed, it can be painted. In this process, an oil finish using the raw material as it is, an open pore finish using the wood pipe, urethane, UV curable resin paint, unsaturated polyester resin paint, etc., form a coating of several hundred μm, and smooth After grinding, mirror finish by gloss buffing is possible.

  According to the present invention, when the concave portion is formed in the coating film, it is possible to cope with the change of the planar pattern of the concave portion without difficulty by using a laser, and it is also manufactured as a small variety of decorative decorative boards. Costs can be suppressed. In addition, since a decorative material is applied to the recesses or filled with a resin, inconveniences such as fouling the periphery can be avoided.

  Examples of the present invention will be described below.

[Example 1]
As shown in FIG. 3, MDF having a thickness of 20 mm was used as the base material 10, and the base material 10 was provided with a coating film 11 composed of an unsaturated polyester surfacer resin layer 20 and an unsaturated polyester black enamel resin layer 21. . The polyester surfacer resin layer 20 is coated with the paint three times to a layer thickness of approximately 200 μm, and after curing and drying, grinding with # 240 sandpaper is performed. The unsaturated polyester black enamel resin layer 21 was coated, cured and dried twice, and then smoothly ground with # 240-400 sandpaper to a layer thickness of about 150 μm. A shallow drawing line having a depth of about 0.01 mm is formed on the coating film 11 formed in this way by an RF excitation sealed carbon dioxide laser (oscillation wavelength 10.6 microns, output 3 w, resolution 500 dpi, laser pulse 500 ppi). A concave portion 13 was formed by carving, and after the dust was removed and the solvent was degreased, each color was colored with urethane two-component reaction curable ink to provide a decorative portion 15.

  Next, a urethane clear resin coating layer 23 having a layer thickness of 50 μm is formed by two coatings, and after lightly grinding with # 320 sandpaper, an unsaturated polyester clear resin layer 27 is formed by three coatings to a layer thickness of 250 μm. After curing and drying, the surface was smoothed with # 400, # 600, and # 800 sandpaper, followed by polishing buffing and polishing wax.

  The obtained decorative decorative board had no appearance of staining around the decorative portion 15 and exhibited an appearance that gives a high-class feeling as seen in crafts.

[Example 2]
The laser output was set to 5 w, the engraving depth of the coating film 11 was set to 0.05 mm, and coloring was performed using a urethane two-component reaction curable ink containing gold powder as the material of the decorating part 15. Other configurations were substantially the same as those in Example 1.

  Also in the second example, it was possible to obtain a decorative decorative board exhibiting the same appearance as that of the first example.

Although the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, the present invention is not limited to this.
That is, the present invention has been particularly shown and described with respect to particular embodiments, but is not limited to the embodiments described above without departing from the scope and spirit of the present invention. Various modifications may be made by those skilled in the art in terms of position, orientation, and other detailed configurations.
Accordingly, the shape, dimensions, thickness, and the like disclosed above are exemplarily described in order to facilitate understanding of the present invention, and do not limit the present invention.

For example, the present invention suffices if it has a coating film that forms a portion where a recess is to be formed, and the formation of other layer structures is arbitrary. However, when a plurality of clear layer structures are provided on the surface side of the decorative portion as in the above-described embodiment, it is advantageous in expressing a sense of depth.
Moreover, the decoration part can employ | adopt various decorating methods, such as filling with reactive clear resin instead of performing application | coating of reactive enamel paint and reactive ink.

The schematic perspective view of the decorative decorative board in this invention. The arrow expanded sectional view which follows the AA line of FIG. The principal part sectional drawing of the decorative decorative board which concerns on Example 1. FIG. The B section expanded sectional view of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Base material, 11 ... Coating film, 13 ... Recessed part, 15 ... Decorating part

Claims (2)

A base material, a coating film provided on the surface of the base material, a recess formed with a laser so as to have a depth equal to or less than the thickness of the coating film, and a decoration part provided in the recess A decorative decorative board characterized by that. After providing a coating film on the surface of the base material, a concave portion having a depth equal to or less than the thickness of the coating film is formed by a laser, and then a decorative portion is provided in the concave portion. Method.

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