JP2008156893A - Manufacturing method of building material and building material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture and provide a building material, having a feeling of solid wood, and improved in wooden appearance. <P>SOLUTION: The surface of a chamfer part 6 formed on the side of the front surface of the building material 1 obtained by arranging a decorative material 3 on the surface of a base material 2 is printed to be dressed according to a color tone and a pattern of the decorative material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a building material having a wooden appearance and a building material manufactured by this manufacturing method.

  As shown in FIG. 4, the building material 1 having a woody appearance such as a flooring material has a grain of wood on the surface of a woody base material 2 such as a plywood, a medium density fiberboard (MDF), a particle board, and a laminated wood. 2. Description of the Related Art A veneer having a wood-like appearance such as a handle or a decorative material 3 such as a decorative sheet is provided by sticking or the like.

Such a building material 1 is usually provided with a female fruit 4 on one of the opposite side ends and a male fruit 5 fitted to the female fruit 4 on the other side, and between two adjacent building materials 1. The male fruit 5 is fitted and joined to the female fruit 4, and the building material 1 is disposed on the floor or the like. In addition, the construction material 1 expresses a sense of secrecy, enhances the design, and prevents the sock from being caught as a smooth surface. A chamfered portion 6 is formed by cutting obliquely downward from the inside to the outside. Further, a groove portion 7 having a substantially V-shaped cross section may be formed on the surface portion of the building material 1. In the building material 1 in which the groove portion 7 is formed, the shape of the chamfered portion 6 is such that the two chamfered portions 6 are merged by abutting two adjacent building materials 1 to form a recess having the same shape as the groove portion 7. Is approximately half the shape of the groove 7. A paint 8 is applied to the chamfered portion 6 and the groove portion 7 in order to improve water resistance and designability. Patent Document 1 discloses a floor using a non-vinyl chloride decorative sheet as the decorative material 3. In the material, there is a problem of peeling and discoloration of the paint due to unstable and uneven adhesion between the paint applied to the chamfered portion 6 and the groove portion 7 and the decorative sheet, resulting in a decrease in water resistance and swelling. In order to solve the problem, it is described that an easy adhesion treatment such as a corona discharge treatment is performed prior to coating of the chamfered portion 6 and the groove portion 7.
Japanese Patent Laid-Open No. 2004-300758

  By the way, the construction material 1 having a wooden appearance is required to have a solid feeling. It is very important for the woody appearance to express the innocence as if it were a single veneer. This innocence is generally manifested in the chamfer 6 and cannot be expressed simply by applying the paint 8. Therefore, even if the easy adhesion treatment described in Patent Document 1 is effective in increasing the coating strength of the paint 8, improvement is required for the building material 1 having a good wooden appearance.

  Then, although providing so that decorative material 3, such as a veneer and a decorative sheet, may be wound up to the surface of the chamfering part 6, in this case, the chamfering part 6 in which the surface of the building material 1 forms a part of a lip. Since the color tone and the pattern are completely the same up to the surface, the natural feeling like a wood veneer cannot be obtained, and eventually the innocence is not fully expressed.

  The present invention has been made in view of the circumstances as described above, has a sense of innocence, and can produce a building material with an improved wooden appearance, and a building manufactured by this manufacturing method. The issue is to provide materials.

  The manufacturing method of a building material according to the present invention is characterized by the following in order to solve the above problems.

  First, cosmetic printing is performed on the surface of the chamfered portion formed on the side portion on the surface side of the building material provided with the decorative material on the surface of the base material in accordance with the color tone and pattern of the decorative material.

  Secondly, in the first feature, prior to decorative printing, the surface of the chamfered portion is preliminarily treated.

  Thirdly, in the first or second feature, the surface of the printed surface is finished after the decorative printing.

  As a fourth feature, the building material of the present invention is manufactured by the method for manufacturing a building material having any one of the first to third characteristics.

  According to the first aspect of the invention, the surface of the chamfered portion is cosmetically printed in accordance with the color tone and pattern of a decorative material such as a veneer and a decorative sheet. Therefore, the color tone and pattern of the printed surface of the chamfered portion are This corresponds to the handle, and there is no unnatural feeling at the end of the chamfer, and a solid feeling can be expressed at the chamfered portion, and a building material having a good wood appearance comparable to a single veneer is obtained.

  According to the second aspect of the invention, in addition to the effects of the first aspect of the invention, the surface of the substrate that is the printing surface can be spotted, and the print quality can be sufficiently secured.

  According to the third aspect of the invention, in addition to the effects of the first or second aspect of the invention, the durability of the printing surface can be improved, and ink peeling off, fading, etc. can be suppressed.

  According to the fourth aspect of the invention, there is provided a building material that has an innocent feeling and has an improved wooden appearance.

  FIG. 1 is a perspective view showing an embodiment of a building material of the present invention. 2 is a cross-sectional view of the building material shown in FIG.

  The building material 1 shown in FIG. 1 is a flooring 1a. The flooring 1a is a plate having a substantially rectangular shape in plan view. A female fruit 4 and a male fruit 5 are respectively formed on a side end portion on the pair of adjacent long sides 9 and a side end portion on the short side 10 side, and a female seed 4 is formed on one of the side end portions on the opposite long side 9 side. Is arranged, and the male fruit 5 is arranged on the other side. Similarly, a female fruit 4 is arranged on one of the side ends on the short side 10 side, and a male fruit 5 is arranged on the other side. The floor material 1a is formed by fitting a male fruit 5 to a female fruit 4 in two adjacent sheets and joining them together to form a floor surface.

  The flooring 1a is made of a veneer or a decorative sheet having a wood-like appearance such as a wood grain pattern on the surface of a woody base material 2 such as plywood, medium density fiberboard (MDF), particle board, and laminated wood. The material 3 is stuck and formed, and has a wooden appearance. The side portions on the surface side, that is, the four side portions are cut obliquely downward from the inner side to the outer side of the flooring 1a, and a chamfered portion 6 is formed.

  The surface of the chamfered portion 6 is cosmetically printed as shown in FIG. The decorative printing is performed in accordance with the color tone and pattern of the decorative material 3. In other words, the surface of the chamfered portion 6 is cosmetically printed in a color tone and a pattern that will appear on the chamfered portion 6 when the flooring 1a is assumed to be a single wood veneer, and corresponds to the species of hardwood or coniferous tree. A surface is formed. Specifically, in the flooring 1a, the decorative material 3 has a color tone and a pattern of a grid pattern, and therefore, the chamfer 6 on the side of the long side 9 has a makeup similar to the color pattern and pattern of the decorative material 3 in a grid pattern. On the other hand, the chamfered portion 6 on the short side 10 side is subjected to decorative printing in a color tone and a pattern corresponding to a cross section cut perpendicularly to the direction of the fibers. For this reason, the color tone and the pattern of the chamfered portion 6 correspond to the color tone and the pattern of the decorative material 3, and there is no unnatural feeling at the cuff exposed on the laid floor, and a solid feeling can be expressed in the chamfered portion 6. The flooring 1a has a good wooden appearance comparable to a wood veneer.

  Such decorative printing can be performed by precision printing represented by inkjet or the like. In this case, the print resolution is preferably 360 dpi or more, although it depends on the pattern to be printed. Further, in order to improve the print quality, as shown in FIG. 2, the rising angle θ of the chamfered portion 6, that is, the surface of the chamfered portion 6 and the side of the substrate 2 excluding the female seed 4 and the male fruit 5. It is preferable that the angle formed with the end surface is 60 ° or less and the thickness t of the chamfered portion 6 is 5 mm or less. When the rising angle θ is larger than that and the thickness t is increased, the print quality may be deteriorated.

  The decorative printing is performed so as to correspond to the color tone and pattern of the decorative material 3 after the decorative material 3 is stuck on the surface of the base material 2 and the chamfered portion 6 is formed by cutting the four sides on the surface side. After the four side portions on the surface side of the base material 2 are shaved and the chamfered portion 6 is formed before sticking 3, the color tone and pattern of the decorative material 3 to be stuck can be expected. In the former case, as shown in FIG. 2, cosmetic printing can also be performed on the side portion of the decorative material 3, and the innocence is further increased.

  In any case, it is preferable to seal the surface of the chamfered portion 6 in advance prior to decorative printing. The surface of the base material 2 that is the printing surface can be sealed by using, for example, a sealer by the sealing process, and clear cosmetic printing can be realized and the printing quality can be sufficiently secured. It is also effective to finish the printed surface after decorative printing. The surface finish improves the durability of the printed surface, and can suppress ink peeling and fading. The surface finishing can be performed, for example, by applying and curing a UV curable paint.

  As for the building material 1 having a wooden appearance including the flooring 1a, as shown in FIG. 3, the groove portion 7 may be formed on the surface portion of the building material 1, and the groove portion 7 may be formed after the decorative material 3 is disposed. The bottom portion of the groove portion 7 may reach the surface portion of the substrate 2. Performing the decorative printing as described above on the groove portion 7 formed in this way is effective for expressing a feeling of innocence. Accordingly, the makeup of the inner surface of the groove portion 7 is made in accordance with the color tone and the pattern of the decorative material 3 so that the color tone and the pattern that will appear on the inner surface of the groove portion 7 when the building material 1 is assumed to be a single wood plate. Print.

  Similarly to the decorative printing on the surface of the chamfered portion 6, the decorative printing on the inner surface of the groove portion 7 can be performed by precision printing typified by ink jet or the like. In this case, the printing resolution is 360 dpi or more, The rising angle λ, that is, the angle that the inner surface of the groove 7 forms with the surface perpendicular to the surface of the building material 1 is within 60 °, which is the same as the rising angle θ of the surface of the chamfered portion 6, and the depth d of the groove 7 Is preferably within 5 mm, which is the same as the thickness t of the chamfered portion 6. By doing in this way, the printing resolution of the inner surface of the groove part 7 can be made favorable, and the printing quality can be kept good.

  In addition, in the building material 1 in which the groove portion 7 is formed, the chamfered portion 6 is formed such that the two chamfered portions 6 are united by abutting two adjacent building materials 1 to form a concave portion having the same shape as the groove portion 7. The shape can be approximately half the shape of the groove 7.

  Such building material 1 can be not only flooring 1a but also wall material, ceiling material, and the like.

  Below, the manufacturing method of the construction material of this invention and the Example of construction material are shown.

Using a MDF of 5.5 mm thickness and a substantially rectangular shape in plan view as a base material, and using a water-based vinyl urethane adhesive (coating amount 100 g / m ² ) on its surface, a 200 μm thick wood grain printed sheet formed from polyolefin A press pressure of 0.5 MPa was applied for 2 hours. Thereafter, chamfering was performed on the four sides on the front surface side with C2.5 using a chamfering planer.

Sample No. For No. 1, an acrylic urethane sealer was applied to the surface of the chamfered portion at an application amount of 30 g / m ² , air-sealed for 10 hours, and then subjected to a sealing treatment, and then a color tone corresponding to a wood grain printed sheet by inkjet with a printing resolution of 360 dpi. And decorative printing was performed on the pattern. Thereafter, a UV acrylic urethane paint was applied to the printed surface at an application amount of 80 g / m ² and UV-cured to finish the surface.

  About the obtained sample, while evaluating the surface of a chamfering part visually, the adhesive tape was affixed on the surface of a chamfering part, it pulled and peeled rapidly, and the tape peeling test which evaluates peeling of an ink visually was done. The results are shown in Table 1.

試料Ｎｏ．１は、無垢感のある良好な木質外観を有している。また、印刷面の耐久性が十分高い。

Sample No. 1 has a good woody appearance with a solid feeling. Further, the durability of the printed surface is sufficiently high.

  Sample No. 2 is Sample No. This is obtained by omitting the sealing process in the production of No. 1. The pattern on the surface of the chamfered portion is slightly blurred, and it is confirmed that the sealing process is effective in order to ensure sufficient print quality.

  Sample No. 3 is sample No. This was obtained by omitting the surface finish in the production of No. 1. Although the printing quality is good due to the sealing treatment, there are inks that have been peeled off, and the printed surface is somewhat lacking in durability. It is confirmed that the surface finish is effective to ensure sufficient durability of the printed surface.

It is the perspective view which showed one Embodiment of the building material of this invention. It is sectional drawing of the building material shown in FIG. It is sectional drawing which showed one Embodiment of the construction material of this invention. It is sectional drawing shown about the building materials in general which have a wooden appearance.

Explanation of symbols

1 Building Material 2 Base Material 3 Makeup Material 6 Chamfer

Claims (4)

  Manufacturing of a building material characterized in that the surface of the chamfered portion formed on the side of the surface side of the building material provided with a decorative material on the surface of the base material is cosmetically printed according to the color tone and pattern of the decorative material Method.   The method for manufacturing a building material according to claim 1, wherein the surface of the chamfered portion is preliminarily treated prior to the decorative printing.   The method for producing a building material according to claim 1 or 2, wherein the surface of the printed surface is finished after decorative printing.   A building material manufactured by the method for manufacturing a building material according to any one of claims 1 to 3.

Images