JP2002337300A - Woodgrain decorative panel and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a woodgrain decorative panel capable of easily obtaining the expression of a real woody pattern breaking from the sense of value of false wood and capable of enhancing capacity such as weatherability or the like at the same time, and a method for manufacturing the same. SOLUTION: The woodgrain decorative panel comprises the woody pattern printing layer formed on a substrate, a printed protective layer for protecting the printing layer, a pattern resin layer wherein embossed conduits are formed to a thermosetting or thermoplastic resin film by shaping and only the conduit parts are filled with a wiping colorant and a transparent resin layer for covering the pattern resin layer. The printing layer is formed, for example, on the surface of the synthetic resin color layer having a primer layer and a synthetic resin enamel layer formed on the substrate and the transparent resin layer has a colored transparent resin layer and a transparent gloss resin layer or a semi- gloss resin layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woodgrain decorative board which can be suitably used for parts requiring weather resistance and water resistance, such as kitchen furniture and building materials, as well as entrance doors, and the production thereof. About the method.

[0002]

2. Description of the Related Art Conventionally, materials such as metals, aluminum, inorganic materials, plastics, and engineering wood have been difficult to express woodgrain patterns on the surface as they are. In most cases, it is used as a base material, and is unsuitable as a surface material of a wooden pattern. For this reason, as a means for obtaining a woody pattern, a printing decorative sheet made of printing decorative paper, vinyl chloride resin printing decorative paper, olefin resin printing decorative paper, or the like is generally used.

In this printed decorative sheet, a woodgrain pattern is expressed by, for example, gravure printing, which is wrapped on the surface of a structural base material, and is used as a woodgrain decorative board as it is. In addition, a wood-grain decorative board on which a functional resin film having abrasion resistance, stain resistance and the like is formed by surface resin treatment is also used.

[0004]

However, such a woodgrain decorative board has a structure in which various printed decorative sheets are attached to a structural base material, so that it cannot be removed from the printing area in appearance. There is a problem that it is impossible to do so and it has to be limited to the value of pseudo wood. In addition, since the decorative printing sheet is wrapped by the adhesive on the structural substrate, the performance of the sheet substrate itself deteriorates and the peeling phenomenon of the decorative printing sheet via the adhesive layer occurs.
It has a problem that it is difficult to use it outdoors or in a water-circulating member where water resistance, warm water resistance and weather resistance are required. The cause of this peeling phenomenon is that the sheet substrate itself or the adhesive layer to be wrapped absorbs water or moisture, causing chemical decomposition or dimensional change.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the invention described in claims 1 to 4 is that a realistic wooden pattern expression can be easily obtained by removing the value of pseudo wood. Another object of the present invention is to provide a woodgrain decorative board that can simultaneously improve performance such as weather resistance. Another object of the invention of claim 5 or 6 is to provide a woodgrain decorative board which is capable of easily realizing the expression of a real wood pattern by peeling off the value of pseudo wood and simultaneously improving the performance such as weather resistance. It is to provide a manufacturing method.

[0006]

In order to achieve the above object, the woodgrain decorative board according to the first aspect of the present invention provides a woodgrain pattern printed layer formed on a base material and protects the printed layer. A print protection layer, a pattern resin layer in which an embossed conduit is formed on a thermosetting resin film or a thermoplastic resin film, and only the conduit portion is filled with a wiping colorant, and a transparent resin layer covering the pattern resin layer And characterized by the following.

[0007] With this configuration, a print layer having a wood grain pattern printed thereon is formed on the surface of the base material, and the print layer is protected by the print protection layer, and is formed on the surface with an embossed conduit. Since the pattern resin layer filled with the wiping colorant is formed in the conduit part, the wood pattern can be easily obtained with the printing layer and the pattern resin layer has irregularities, and the surface is realistic wood closer to real wood A pattern expression is obtained. In addition, the separation of each layer is prevented by the print protection layer and the like, and the performance such as weather resistance can be improved at the same time.

The printing layer is preferably formed on the surface of a synthetic resin colored layer formed on a substrate, in this case, in this case, the synthetic resin colored layer Preferably has a primer layer and a synthetic resin enamel layer as in the invention of claim 3.
With this configuration, the synthetic resin enamel layer of the synthetic resin coloring layer can easily adjust the color tone of the woodgrain decorative board to the required color tone, and the adhesion of the primer layer to the base material is improved. As a result, peeling of each layer is reliably prevented.

Further, the transparent resin layer preferably has a colored transparent resin layer and a transparent glossy resin layer or a semi-glossy resin layer as described in the fourth aspect of the present invention. By appropriately selecting and using the transparent glossy resin layer and the semi-glossy resin layer, a woody tone can be obtained by the surface of the woodgrain decorative board.

According to a fifth aspect of the present invention, there is provided a method for manufacturing a woodgrain decorative board, comprising: providing a woodgrained printed layer on a substrate, protecting the printed layer with the printed protective layer, and then thermosetting the printed protective layer. An embossed conduit is formed on a conductive resin film or a thermoplastic resin film, a pattern resin layer filled with a wiping colorant is provided only in the conduit portion, and then the pattern resin layer is covered with a transparent resin layer. I do.

[0011] With this configuration, the wood-grained printed layer formed on the surface of the base material is protected by the print protection layer, and the surface of the surface is filled with the wiping colorant in the conduit portion formed by the embossed conduit. Since the patterned resin layer is formed, a wood grain pattern is obtained by the printing layer and irregularities are imparted by the patterned resin layer in the same manner as in the invention of claim 1, so that the surface is closer to real wood than real wood. A pattern expression can be obtained, and separation of each layer can be prevented by the print protection layer and the like, so that performance such as weather resistance can be improved at the same time.

The printing layer is printed on the base material or the synthetic resin colored layer formed on the base material by offset printing, screen printing, sublimation printing, ink jet printing or the like. Is preferably performed. With this configuration, a wood-grained printed layer can be easily and inexpensively formed on the base material or the synthetic resin colored layer formed on the base material by selectively using various printing techniques.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a conceptual diagram of an exploded sectional state showing a basic structure of a woodgrain decorative board according to the present invention. In FIG. 1, a woodgrain decorative board 1 includes a base material 2, a synthetic resin colored layer 3 provided on the base material 2, a printed layer 4 provided on the synthetic resin colored layer 3, Layer 4
, A pattern resin layer 6 on which a predetermined pattern is formed, and a laminated structure of a colored transparent resin layer 7 and a surface layer 8 covering the pattern resin layer 6.

The base material 2 is formed of, for example, a steel plate, and the synthetic resin colored layer 3 is, for example, a synthetic resin enamel layer 3 of a designated color for matching a color tone required for the woodgrain decorative board 1.
and a primer layer 3a (or a chemical conversion treatment layer) for improving the adhesion of the synthetic resin enamel layer 3b to the base material 2.

The printing layer 4 is formed by printing a grain pattern such as a grain or a straight grain among the surface information of wood, and the printing means may be offset printing, screen printing, sublimation printing, ink jet printing, or the like. Is used,
The original plate at the time of printing is formed by photographing the target real wood. In addition, the ink resin used at the time of printing can improve the water resistance performance by using a resin type that chemically reacts. However, if the adhesiveness and the water resistance performance are satisfied, the wood resin decorative board 1 can be used in accordance with the application. For example, reactive urethane, epoxy, one-pack type alkyd, vinyl, lacquer and the like are selectively used.

The printing layer 4 can be directly printed on the base material 2 when the illustrated synthetic resin colored layer 3 is not required. However, the performance stabilization and finish of the woodgrain decorative board 1 can be achieved. From the viewpoint of appearance, it is preferable to provide the above-mentioned primer layer 3a and synthetic resin enamel layer 3b. The printing layer 4 allows the surface of the solid substrate 2 to be closer to the surface of real wood.

The print protection layer 5 is formed of, for example, a urethane transparent coloring resin. The pattern resin layer 6
Has an embossed resin layer 6a having a conduit portion 9 and a conduit coloring layer 6b in which only the conduit portion 9 of the embossed resin layer 6a is colored. Embossed resin layer 6a
Using a resin film of, for example, a thermosetting resin or a thermoplastic resin with a thickness of several hundred micrometers obtained by a spray method or a film method, presses the conduit embossing type before the resin is cured and presses the resin film. It is formed by molding the conduit portion 9.

At this time, the conduit portion 9 is three-dimensionally transferred to the embossed conduit type by flushing the real wood with a silicone resin in a sheet shape and filling the concave conduit portion. In addition, as a type of the conduit embossing type, an electroforming mold or the like is used in addition to the silicon resin sheet. In addition, by the embossing with the conduit, countless random depressions are formed on the surface of the resin film, and an appearance close to that of real wood can be obtained.

However, in this state, since there is no accent as the conduit portion 9 and the wooden texture is not sufficient, the conduit coloring layer 6b is provided. The conduit coloring layer 6b is formed by selectively filling a wiping colorant by a wiping method of coloring only the conduit portion 9 of the embossed resin layer 6a, and the appearance closer to the real thing is achieved by the conduit coloring layer 6b. Is obtained.

The colored transparent resin layer 7 is made of a colored transparent resin obtained by mixing a dye or a pigment in a synthetic resin paint, and is formed by coating this on the pattern resin layer 6. The colored transparent resin layer 7 can produce a more woody tone. The surface layer 8 is for applying a clear as it is with a top coating resin to give a gloss, or for mixing a matting agent into a transparent resin to remove an appropriate gloss, and the resin is made of acrylic urethane. Fluoro urethane, acrylic silicone, nitrocellulose lacquer, aminoalkyd resin and the like are used.

Next, an example of a method for producing the woodgrain decorative board 1 will be described with reference to the process chart of FIG. First, the surface of a steel sheet as the base material 2 is subjected to a primer treatment (K101), and an enamel resin is baked on the surface of the steel sheet subjected to the primer treatment (K102) to form a synthetic resin colored layer composed of a primer layer 3a and a synthetic resin enamel layer 3b. Form 3 After forming the synthetic resin colored layer 3, the synthetic resin enamel layer 3
b surface printing by the printing technique described above (K10
3) to form a print layer 4, and apply a transparent colored resin to the surface of the print layer 4 (K104) to form a print protection layer 5.

In this state, a thermosetting resin (or a thermoplastic resin) is applied to the surface of the print protection layer 5 by a spray method or the like to form a resin film (K105). Using the above-mentioned embossed mold, form a conduit (K1
06). As a result, the embossed resin layer 6a is formed, and the conduit portion 9 of the embossed resin layer 6a is filled with a wiping colorant (K107) to form the conduit colored layer 6b. The pattern resin layer 6 is formed.

After the pattern resin layer 6 is formed, a colored transparent resin is applied to the surface thereof (K108), and the colored transparent resin layer 7 is formed.
The surface layer 8 is formed by applying a matting resin (K109) to the surface. Thereby, the woodgrain decorative board 1 in which the synthetic resin coloring layer 3, the printing layer 4, the printing protection layer 5, the pattern resin layer 6, the coloring transparent resin layer 7, and the surface layer 8 are formed in a laminated state on the surface of the steel sheet is obtained. Manufactured.

[0024]

EXAMPLES Table 1 below shows examples of the woodgrain decorative board 1, in which the material of the base material 2 and the resin used for each layer are specified and the layer thickness is specified to prepare the woodgrain decorative board 1. However, it was possible to obtain the woodgrain decorative board 1 having a realistic woody pattern closer to real wood.

[0025]

[Table 1]

As described above, in the woodgrain decorative board 1 described above, the printing layer 4 is formed on the surface of the base material 2 with the synthetic resin coloring layer 3 interposed therebetween. Since the pattern resin layer 6 composed of the embossed resin layer 6a and the conduit coloring layer 6b is provided on the surface of the print protection layer 5 to protect and protect the print protection layer 5, the woodgrain decorative board 1 can easily have a wood pattern close to a real woody one. Can be formed. In particular, a woodgrain pattern can be expressed by printing on the surface of the base material 2 by the printing layer 4, or the embossed resin layer 6a
The unevenness close to that of a real wood can be imparted by the pipe coloring layer 6b and the wood grain decorative board 1 having a more realistic wood pattern can be obtained.

The synthetic resin enamel layer 3b of the synthetic resin coloring layer 3 provided on the surface of the substrate 2
Can be easily adjusted to the required color tone, and the colored transparent resin layer 7 provided on the surface of the pattern resin layer 6 can produce a woody tone, so that it is possible to bring the expression closer to a realistic wooden expression. From these facts, it becomes possible to obtain the woodgrain decorative board 1 having a realistic wooden pattern expression that is closer to the real thing, which escapes the value of the conventional pseudo wood.

Further, a synthetic resin enamel layer 3b is formed on the substrate 2 by baking through a primer layer 3a, the printing layer 4 is protected by a printing protection layer 5, or a resin having excellent water resistance and the like as various resins. Is used, the base material 2
It is possible to reliably prevent peeling of the printed layer 4 itself from the surface and delamination due to chemical decomposition and dimensional change due to moisture absorption of each layer, and to obtain a woodgrain decorative board 1 excellent in water resistance and weather resistance. Will be possible. Furthermore, since the surface of the woodgrain decorative board 1 is covered with the colored transparent resin layer 7 and the surface layer 8, scratch resistance, stain resistance, and the like can be improved. As a result, it can be suitably used as the woodgrain decorative board 1 for kitchen furniture, building materials, and other outdoor and water-use members such as entrance doors.

In the above description, the synthetic resin colored layer 3 is provided on the surface of the base material 2. However, the synthetic resin colored layer 3 is not always necessary. Can be directly provided, and various changes can be made without departing from the scope of the present invention, such as adopting a method other than the above examples as a method of forming each layer, or appropriately increasing or decreasing each layer.

[0030]

As described above in detail, according to the first aspect of the present invention, a print layer having a wood grain pattern printed thereon is formed on the surface of the substrate, and the print layer is protected by the print protection layer. And since the pattern resin layer filled with the wiping colorant is formed on the surface of the conduit part formed by the embossed conduit,
The woodgrain pattern is easily obtained on the printed layer and the pattern resin layer is provided with concavities and convexities, so that a realistic woody pattern expression closer to the real wood on the surface of the woodgrain decorative board can be obtained. , Etc., can be prevented, and the performance such as weather resistance can be improved at the same time.

According to the second aspect of the invention, in addition to the effects of the first aspect, the printing layer is formed on the surface of the synthetic resin colored layer formed on the base material, and The color tone of the decorative veneer can be easily adjusted to the required color tone.

According to the third aspect of the present invention, in addition to the effects of the second aspect, the synthetic resin colored layer has a primer layer and a synthetic resin enamel layer, and thus is required for the synthetic resin enamel layer. In addition to being able to easily adjust to a different color tone, the adhesion to the base material can be enhanced by the primer layer, and peeling of each layer can be reliably prevented.

According to the fourth aspect of the invention, in addition to the effects of the first to third aspects, the transparent resin layer has a colored transparent resin layer and a transparent glossy resin layer or a semi-gloss resin layer. By appropriately selecting and using the transparent glossy resin layer and the semi-glossy resin layer, it is possible to produce a tone closer to woody by the surface of the woodgrain decorative board.

According to the fifth aspect of the present invention, the wood-grained print layer formed on the surface of the base material is protected by the print protection layer, and the surface is wiped to a conduit portion formed with an embossed conduit. Since the pattern resin layer filled with the colorant is formed, similarly to the invention of claim 1, a wood grain pattern is obtained in the print layer, and the pattern resin layer is provided with irregularities, and the surface is closer to real wood. A realistic wooden pattern expression can be obtained, and peeling of each layer can be prevented by the print protection layer and the like, so that performance such as weather resistance can be improved at the same time.

According to the sixth aspect of the present invention, since the printing layer is printed on the base material or the synthetic resin colored layer formed on the base material by various printing techniques, various printing techniques can be selectively used. This produces an effect that a wood-grained printed layer can be formed easily and at low cost.

[Brief description of the drawings]

FIG. 1 is an exploded sectional view showing the basic structure of a woodgrain decorative board according to the present invention.

FIG. 2 is a process diagram of the manufacturing method.

[Explanation of symbols]

 1 ... wood grain decorative board 2 ... base material 3 ... synthetic resin coloring layer 3a ... primer Layer 3b: Synthetic resin enamel layer 4: Print layer 5: Print protection layer 6: Pattern Resin layer 6a ······· Embossed resin layer 6b ····························· Colored transparent resin layer 8 ······ .... Surface layer 9 ...

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F100 AB03E AK36E AK44C AK51A AK51B AK51D BA05 BA07 BA10A EJ39C EJ65E GB07 HB00B HB00D HB26C HB31C HB32E JL00 JL09 JL10B JL10D JN26A

Claims (6)

[Claims] An embossed conduit is formed on a wood-grained printed layer formed on a substrate, a printed protective layer for protecting the printed layer, and a thermosetting resin film or a thermoplastic resin film. A woodgrain decorative board comprising: a pattern resin layer in which only a portion is filled with a wiping colorant; and a transparent resin layer covering the pattern resin layer. 2. The woodgrain decorative board according to claim 1, wherein said printing layer is formed on a surface of a synthetic resin coloring layer formed on a base material. 3. The synthetic resin colored layer has a primer layer and a synthetic resin enamel layer.
The described woodgrain decorative board. 4. The woodgrain decorative board according to claim 1, wherein said transparent resin layer has a colored transparent resin layer and a transparent glossy resin layer or a semi-gloss resin layer. 5. A wood-grained printed layer is provided on a substrate, and after the printed layer is protected by a print protective layer, an embossed conduit is formed on the thermosetting resin film or the thermoplastic resin film on the print protective layer. A method for producing a woodgrain decorative board, characterized in that a pattern resin layer filled with a wiping colorant is provided only in the conduit portion, and then the pattern resin layer is covered with a transparent resin layer. 6. A printing method according to claim 5, wherein the printing layer is printed on a base material or a synthetic resin coloring layer formed on the base material by offset printing, screen printing, sublimation printing, ink jet printing or the like. A method for producing the woodgrain decorative board according to the above.