JPH11286074A - Decorative plate and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative plate in which a pattern part enters the inside of a groove part irrespective of the condition of the groove part and a method for producing the decorative plate. SOLUTION: In a decorative plate in which a pattern part 4 is transferred on the surface of wood substrate 1, the pattern part 4 is sucked into a groove part 2 on the surface of the substrate 1 through an anchoring agent 3. In the production process of the decorative plate, the anchoring agent 3 is applied to the surface of the substrate 1 being kept at a high temperature, while a transfer sheet in which an adhesive layer is laminated on a pattern surface is hot-pressed, a pattern is transferred, and the anchoring agent 3 is contracted and solidified by drying and cooling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative board obtained by applying a pattern such as a wood grain pattern to a woody plate-like material and a method for producing the same.

[0002]

2. Description of the Related Art In general, wooden materials are used for pillars and walls used in wooden buildings and the like. The use of exposed natural wood was very expensive. Therefore, there has been a type in which a so-called veneer, which is usually a thin wood-grained board, is attached to the outer surface, and the whole is made to look like a natural wood. However, even such a processed board uses natural wood, so it was not cheap. Under these circumstances, in order to supply a board material similar to natural wood at a low cost, a decorative board in which a sheet printed on a wood grain pattern is adhered to the surface has been manufactured. However, among such decorative boards, there are those in which a wood pattern is simply printed on a flat sheet, and this can clearly determine that the pattern on the surface is a printed matter. However, the unique texture of natural wood could not be felt. That is, there has been a long-awaited desire for a decorative board resembling a natural wood, not only in appearance but also in feeling when touched by hand.

Therefore, in the decorative board as described above,
A technique of printing a wood grain pattern while making use of a pattern existing on the surface of a substrate serving as a base of a decorative board and leaving surface irregularities in a natural state has been adopted. For this reason, transfer sheets have been developed exclusively, and the transfer sheet used conventionally has a pattern portion to be transferred, an adhesive for fixing the pattern portion to the substrate surface, and a transfer portion bonded to the transfer portion. In a state in which the base layer of the transfer sheet in the state that has been made, so that the base layer can be easily peeled from the pattern portion,
A release agent was provided between the two. And
In the method of processing a decorative plate, the above-mentioned transfer sheet is adhered while being pressed by an elastically deformable rubber roller or the like.

[0004]

However, in the above-described processing method, first, the state of transfer largely differs depending on the elasticity of the rubber roller. That is,
In order to make the pattern portion of the transfer sheet enter the inside of the groove of the wood substrate, a soft rubber roller is used.However, in this case, the force for pressing the entire wood substrate is weakened. The sticking of the pattern on the surface becomes insufficient.On the other hand, if the rubber roller is made hard, the pattern cannot enter the rubber roller without deforming the surface of the rubber roller along the groove, and the bridge shape in the groove And so on.

Second, the state of transfer differs depending on the type of wood substrate and the state of the cut surface. That is, when a decorative board is to be manufactured, the same type of wood material is not used in a limited manner, but a wood material that can be obtained relatively inexpensively is used. Even with materials, the state of the surface varies depending on the place where it was sampled and the angle of cutting, etc.The grooves formed by conduits etc. are sometimes fine and triangular in cross section, Some of them are large and have a rectangular cross section, and the state in which the picture portion is transferred is different due to such a difference.

In view of the above points, an object of the present invention is to provide a decorative board in which a picture portion enters the inside of a groove without depending on the state of the groove, and a method for manufacturing the same.

[0007]

According to the invention relating to a decorative board, in a decorative board having a pattern portion transferred to the surface of a wooden substrate, the pattern portion is inserted into a groove on the surface of the wooden substrate via an anchoring agent. The gist is a decorative plate characterized by being sucked. Further, in the invention of the manufacturing method, in the decorative board consisting of a wooden substrate serving as a base of the decorative board, a groove portion formed on this surface, and a pattern portion in which a pattern is transferred to the surface of the wooden board, high temperature Applying the anchor agent to the surface of the wooden substrate while maintaining the pattern, and transferring the pattern while hot-pressing the transfer sheet consisting of the adhesive layer on the pattern surface with a heat roll, and shrinking the anchor agent by drying and cooling And a method of manufacturing a decorative board characterized by being solidified.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a processing method in the case where a wooden substrate 1 has fine grooves 2.
The process proceeds from (a) to (b) and (c) sequentially. Here, in the present embodiment, the groove portion 2 is a processing method for transferring a pattern to a relatively fine surface, and the pattern is configured by a pattern portion 4 in which a pattern ink is layered. In many cases, such a groove 2 has a triangular cross section, and the inside of the groove 2 is inclined.

Therefore, in this embodiment, as shown in FIG. 1A, an anchor agent 3 is applied to the surface of the woody substrate 1. The anchor agent 3 softens or liquefies at a high temperature, and is naturally maintained at a high temperature when applied. In addition, the anchor agent 3 uses a material whose volume expands in a softened or liquefied state.
When solidified, the volume shrinks in reverse.

Subsequently, as shown in FIG. 1B, the picture portion 4 is transferred to the surface on which the high-temperature anchor agent 3 is applied. At this time, since the adhesive layer is laminated on the pattern portion 4, the pattern portion 4 cannot be easily detached from the anchor agent 3 by bonding the adhesive layer and the anchor agent 3. At the same time, pressure is applied by a rubber roller or the like so that a part of the picture portion 4 can enter the inside of the groove portion 2. Further, in the state where the picture portion 4 has been transferred, the entirety including the wooden substrate 1 is dried, and the anchor agent 3 is cooled to room temperature, thereby obtaining FIG.
As shown in (2), the anchor agent 3 solidifies and contracts. Therefore, between the inner surface of the groove portion 2 of the wooden substrate 1 and the transferred pattern portion 4, the anchor agent 3 is tightly present, and the pattern portion 4 is drawn in according to the shape of the groove portion 2. As a result, the picture portion 4 can easily enter the inside of the groove portion 2.

As the above-mentioned anchoring agent 3, a resin having an adhesive or tackifying effect is suitable, and examples thereof include a vinyl chloride-vinyl acetate copolymer resin, an ethylenized vinyl acetate resin, and a urethane-modified vinyl chloride resin. Examples include vinyl acetate copolymer resins. In addition to such a resin, any material that softens or liquefies by heating as described above can be used as the anchor agent 3, and can be used without being a resin. That is, even if the anchor agent 3 itself does not contract, it is only necessary that a part of the anchor agent 3 penetrates into the interior of the wooden substrate 1 to reduce the gap between the picture portion 4 and the surface of the wooden substrate 1. That is, for example, assuming that the liquefied anchor agent 3 is applied to the surface of the wooden substrate 1 and the picture portion 4 is transferred from above, the picture portion 4 is in close contact with the upper side of the anchor agent 3 and there is a gap between the two. There is no. When the anchor agent 3 permeates gradually from the surface of the wood substrate 1 to the inside before the anchor agent 3 solidifies, when the entire anchor agent 3 solidifies, the wood substrate 1 and the pattern The gap with the part 4 is narrowed by the amount that the anchor agent 3 has penetrated, and the anchor agent 3 is closely present between the two, so that gas such as air does not enter. Therefore, it is drawn along the surface of the wooden substrate 1 and can sufficiently enter the inside of the groove 2. In addition, in the case where the anchor agent 3 permeates into the interior of the wooden substrate 1 as described above, the anchor portion 3 such as resin does not peel off from the surface of the wooden substrate 1 and the pattern portion 4 is adhered for a long time. You can wear it.

As the adhesive layer laminated on the picture portion 4, a urethane-based or polyamide-based adhesive resin called a hot melt adhesive is used. As described above, the picture portion 4 is formed by a rubber roller or the like. When the transfer is performed under pressure, if the anchor agent 3 maintains a high temperature, the hot melt adhesive dissolves and can be bonded to the anchor agent 3. When it is not possible to obtain the adhesive layer, the adhesive layer can be dissolved separately from the anchor agent 3 by providing a heating means in a rubber roller or the like.

Here, the rubber roller is a roller made of silicone rubber. When a compressive force is applied by a press machine due to a change in hardness or thickness of the silicone rubber, the compressive force is the elasticity of the silicone rubber. It will change according to the deformation. The rubber roller is provided with a heating means, so that the temperature of the anchor agent 3 applied to the wooden substrate 1 does not decrease as described above, in other words,
High temperature state can be maintained. In addition, it is possible to further heat the anchor agent 3 in order to make the temperature higher. As a case of performing such heating, there is a case where an anchor agent 3 that penetrates the wood substrate 1 is used. That is, a material that softens or liquefies at a high temperature is generally a material having a high fluidity at a higher temperature.
This facilitates penetration into the fibers of the wood substrate 1.

In this processing method, the wood substrate 1 and the picture portion 4 are compressed by a rubber roller,
The picture part 4 is once pushed deep into the groove. This is because the picture pattern continuous in a film shape has flexibility, and the picture pattern expands and contracts with the deformation of the surface of the rubber roll. Therefore, once the elongated pattern reaches the inside of the groove portion 2 and then contracts again, the preparation for entering the groove is completed. That is, the image can be provided with a sufficient margin so that the pattern can respond to the tension by the anchor agent 3.

As described above, the picture portion 4 is provided with the anchor agent 3
Is drawn toward the surface of the wooden substrate 1, so that the picture portion 14 can enter the inside of the groove portion 12 even if the groove portion 12 is large and rectangular in cross section as shown in FIG. 2. The processing method in this case is the same as the above-described processing method. That is, first, a high-temperature anchor agent 13 is applied to the wooden substrate 11, and the pattern portion 14 is transferred while being pressed from above, and finally dried and cooled.
Here, as shown in the figure, since the groove 12 is large and has a quadrangular cross-section, simply transferring the picture portion 14 in a normal manner
The picture portion 14 has a bridge shape as shown in FIG. 2B. Even if a rubber roller made of a flexible material is used, the above-mentioned bridge shape is only slightly reduced, and it is difficult to transfer the picture portion 14 so as to conform to the square corner shape. However, as in the present embodiment, when the anchoring agent 13 contracts when it is solidified, the picture portion 14 is attached to the wooden substrate 1.
Since it is pulled closer to the surface of the groove 1, it is possible to sufficiently enter the inside of the groove 12 having a rectangular cross section.

As described above, the decorative plates 1 and 11 manufactured by the present embodiment according to the decorative plate manufacturing method can be used even if the natural grooves 2 and 12 have different cross-sectional shapes.
The pattern portions 4 and 14 are adsorbed to the grooves 2 and 12 via the anchor agents 3 and 13. Therefore, not only the natural grooves 2 and 12 but also an artificial groove can sufficiently adsorb the picture portion. In such cases,
It is conceivable that the groove is obtained by a method of forming a groove by pressing a mold on the surface of a plywood (so-called embossing). Since the groove formed by such embossing changes the state of the groove by changing the pressing force of the mold, it is possible to constitute a natural decorative board by being adsorbed by the anchor agent. it can.

It goes without saying that various embodiments can be adopted without departing from the spirit of the present invention. As described above, the anchor agents 3 and 13 may employ various agents in addition to the anchor agents specified. Among them, in addition to being able to shrink during solidification,
It is preferable to use an adhesive having an adhesive force so that the image 11 and the picture portions 4 and 14 can be sufficiently adhered. Further, the anchoring agent 3, 13 after being solidified by drying or cooling, in order to soften or liquefy, not only the temperature becomes high, but also the anchoring agent 3, which has a property that a softener or a dissolving agent must be given. A value of 13 is more preferable because the picture parts 4 and 14 are not peeled off even when the temperature of the decorative board after manufacture rises for some reason. Further, when transferring the picture portions 4 and 14, there is a transfer sheet having a release layer and a base material layer on the transfer sheet. In such a case, the anchor members 3 and 13 are provided on the surfaces of the wooden substrates 1 and 12. In the state of application, the above-mentioned base material layer can be removed by bonding the adhesive layer portions of the picture parts 4 and 14, and in this state, the picture parts 4 are pressed by a rubber roller or the like. , 14
, The same effect can be obtained.

[0018]

EXAMPLES As an anchoring agent, a vinyl chloride-vinyl acetate copolymer resin was used and applied to a wooden substrate at a rate of 40 g / m ² . We adopt oak wood as wooden substrate,
The transfer method is such that a picture portion is superimposed on the surface of a wooden substrate, and a rubber roller having a rubber hardness of 50 degrees is used to apply a surface pressure of 10 degrees.
Transfer was performed while pressing at a pressure of kgf / cm ² . The rubber roller had a built-in heat roller of about 100 ° C., and supported so that the temperature of the anchor agent did not decrease during processing. After the transfer was completed, the film was naturally cooled while giving a sufficient drying time. Note that a hot melt adhesive made of a urethane resin was used as the adhesive layer laminated on the picture portion.

In the decorative board obtained in the above example, the pattern was sufficiently transferred in each groove, and the inside of the groove was confirmed, but no bridge-shaped part was found. Since the transfer of the pattern by the rubber roller was performed while rotating the rubber roller and advancing the transfer sheet and the wood substrate in accordance with the rotation,
There was no gas such as air mixed between the anchor agent and the pattern, and no so-called blisters or the like in which a part of the pattern was lifted were found.

[0020]

As described above, the present invention provides a decorative board comprising a wooden substrate serving as a base of a decorative board, a groove formed on the surface of the wooden board, and a pattern section having a pattern transferred to the surface of the wooden board. In the method, the anchor agent is applied to the surface of the wooden base while maintaining the temperature at a high temperature, the pattern is transferred while the transfer sheet is hot-compressed by a heat roll, and the anchor agent is shrunk and solidified by drying and cooling. Since the gist of the method of manufacturing a decorative board is to transfer the pattern to a wooden substrate, the pattern is drawn into the groove by contracting as the anchor agent solidifies, whereby the groove can be drawn. The picture can be transferred to the inside of the groove according to the shape.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a procedure of a manufacturing method.

FIG. 2 is an explanatory diagram showing a procedure when another wood substrate is used.

[Explanation of symbols]

 1,11 wood substrate 2,12 groove 3,13 anchor agent 4,14 picture

Claims (2)

[Claims] 1. A decorative board having a picture part transferred onto the surface of a wooden substrate, wherein the picture part is sucked into a groove on the surface of the wooden substrate via an anchor agent. 2. A decorative board comprising a wood substrate serving as a base of a decorative board, a groove formed on the surface thereof, and a picture portion having a pattern transferred to the surface of the wood board, wherein the wood board is maintained at a high temperature. An anchor agent is applied to the surface, and a transfer sheet formed by laminating an adhesive layer on the pattern surface is hot-pressed by a heat roll to transfer the pattern, and the anchor agent is shrunk and solidified by drying and cooling. A method for producing a decorative board, characterized by the following.