JP2014195914A - Decorative plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a decorative plate having high designability and high wear resistance which has a pattern layer which is printed and formed by an inkjet printer without causing a failure of the printer.SOLUTION: A decorative plate 10 comprises: a substrate 1; a pattern layer 2 on which a pattern 3 is printed on the smooth surface of the substrate 1 by an inkjet printer; raised parts 4 which are formed to synchronize with a part of a pattern 3 of the pattern layer 2 by an inkjet printer on the pattern layer 2; and a transparent coating film layer 5 which is formed on the pattern layer 2 and the raised parts 4 and contains an antifriction material. The transparent coating film layer 5 includes protrusions 6a positioned on the raised part 4 and recesses 6b positioned on a region where the raised parts 4 are not formed and the surface of the protrusions 6a of the transparent coating film layer 5 and the surface of the recesses 6b are different in gloss.

Description

  The present invention relates to a decorative board used for interior materials such as flooring, and more particularly to a decorative board having a pattern printed on a substrate by an ink jet printer.

  2. Description of the Related Art Conventionally, a decorative board having a printed layer provided on a substrate surface is known as a decorative board used for this type of flooring. As such a decorative plate, Patent Document 1 discloses a decorative plate on which a concavo-convex pattern synchronized with a wood grain pattern is printed. In the decorative board of Patent Document 1, a pattern layer is printed with a dye-based ink on a substrate by an ink jet printer, and a raised portion (convex pattern) synchronized with the pattern is formed on the pattern layer with a pigment-based ink. Print formed. In this way, a concavo-convex pattern synchronized with the wood grain pattern is formed by printing the convex portion.

  However, when the decorative board of Patent Document 1 is used as a flooring, there is a risk that scratches or defects may occur on the convex portion of the surface of the decorative board due to contact with a person or an object, and the pattern layer may be peeled off. It is difficult to actually apply to flooring due to lack of properties.

  As a decorative board for solving this problem of flooring use, Patent Document 2 discloses that a so-called anti-friction material such as silica or alumina is mixed with ink of an ink jet printer printed on the surface of the decorative board. A decorative board with improved wear is disclosed.

JP 2008-179073 A JP 2008-265229 A

  However, mixing an antifriction material with the ink itself of an ink jet printer as in Patent Document 2 not only impairs the stability of the ink, but also causes problems with expensive ink ejection equipment, or shortens its life. There is a risk. Moreover, in patent document 2, the indication of the structure which solves the problem of the designability of patent document 1 is not seen.

  The present invention has been made in view of the above problems, and its object is to provide unevenness synchronized with the pattern printed by the printing press without causing problems of the ink jet printing press due to the ink mixed with the antifriction material. The object is to obtain a decorative board having a shape and a high design property and a high wear resistance.

  In order to achieve the above-mentioned problem, in the present invention, a convex portion is formed on the base material surface of the decorative board, which is in synchronization with the pattern printed by the ink jet printer and is covered with a layer containing an antifriction material, The surface was processed to adjust the gloss.

  Specifically, the decorative board according to the present invention includes a base material having a smooth surface, a pattern layer in which a pattern is printed on the surface of the base material by an ink jet printer, and an ink jet printer on the pattern layer. A raised portion formed so as to synchronize with a part of the pattern of the pattern layer, and a transparent coating layer formed on the pattern layer and the raised portion and containing an antifriction material. The transparent coating layer is raised Including a convex portion located on the portion and a concave portion located on a region where the raised portion is not formed, wherein the convex surface of the transparent coating layer has a gloss different from that of the concave surface. .

  According to the decorative board according to the present invention, the gloss of the convex portion formed so as to synchronize with the pattern in the pattern layer printed and formed by the ink jet printer is processed so as to be different from the gloss of the concave portion. The reflective part and the concave part synchronized with each other have different light reflectivities, can express a more natural texture, and can provide a decorative board with high design.

  Moreover, in this decorative board, since the antifriction material is not included in the pattern layer and the raised portion that are printed by the ink jet printer, there is no problem with the ink jet printer.

  Furthermore, since the transparent coating layer containing an antifriction material is formed on the pattern layer and the raised portion, the wear resistance of the decorative board can be improved.

  The decorative board according to the present invention further includes a transparent clear layer formed on the pattern layer, and the raised portion may be formed on the clear layer so as to synchronize with a part of the pattern of the pattern layer. Good.

  Thus, by providing a clear layer having a certain thickness not only on the convex part but also on the concave part, it is possible to provide a decorative board having a more three-dimensional design appearance with different design characteristics depending on the viewing angle.

In the decorative board according to the present invention, the convex surface of the transparent coating layer is preferably sanded to such an extent that the transparent coating layer is not removed, so that the gloss is lower than the concave surface. Since the convex portion can give a lower gloss difference between the convex portion and the concave portion synchronized with the pattern layer on the decorative board, as described above, a more natural texture can be expressed and a high design property can be obtained. be able to.

  In addition to this, the decorative board according to the present invention may further include a finish coating layer formed on the convex portion of the transparent coating layer and having a gloss lower than that of the transparent coating layer.

  Even if it does in this way, the glossiness of the convex part and recessed part in a decorative board changes with the presence or absence of a finish coating film layer similarly to the above, and a decorative board with high designability can be obtained. Also in this case, even if the finished coating layer is damaged, the convex portion is maintained without being lost due to the effect of the transparent coating layer containing the antifriction material.

  In contrast, in the decorative board according to the present invention, the surface of the convex portion of the transparent coating layer is polished to such an extent that the transparent coating layer is not removed, so that the gloss is higher than the surface of the concave portion. Good.

  Even in this way, since the convex portion can give a higher gloss difference between the convex portion and the concave portion synchronized with the pattern layer in the decorative board, as described above, a more natural texture can be expressed, High designability can be obtained.

  Moreover, the decorative board which concerns on this invention may be further provided with the finishing coating film layer formed on the convex part of a transparent coating film layer, and gloss higher than a transparent coating film layer.

  Even if it does in this way, the glossiness of the convex part and recessed part which synchronized with the pattern layer in a decorative board differs similarly to the above, and the decorative board with high designability can be obtained. Also in this case, even if the finished coating layer is damaged, the convex portion is maintained without being lost due to the effect of the transparent coating layer containing the antifriction material.

  According to the decorative board according to the present invention, it is possible to obtain a decorative board having a high design property and a high wear resistance having a concavo-convex shape synchronized with a pattern printed by the printing machine without causing problems of the ink jet printing machine. it can.

(A) And (b) shows typically the decorative board which concerns on the 1st Embodiment of this invention, (a) is a top view, (b) is sectional drawing in the AA of (a). It is. It is sectional drawing which shows typically the decorative board which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows typically the decorative board which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows typically the modification of the decorative board which concerns on the 3rd Embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its application, or its application.

(First embodiment)
First, a decorative board according to a first embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b). 1 (a) and 1 (b) schematically show a decorative board according to a first embodiment of the present invention, (a) is a plan view thereof, and (b) is an AA line of (a). FIG.

  As shown in FIGS. 1 (a) and 1 (b), in the decorative board 10 according to the present embodiment, for example, a pattern printed by an inkjet printer on the surface of a plate-like substrate 1 having a smooth surface. Layer 2 is formed. For the base material 1, for example, a laminated board, a plywood, a particle board, a wooden board such as a wood fiber board, an inorganic board such as a volcanic glass fiber board, a calcium board, a plaster board, a resin such as polypropylene, polyethylene, ABS, A resin plate or the like molded into a plate shape can be used. Further, a white ink receiving layer (not shown), for example, may be provided on the surface of the substrate 1 in advance in order to quickly fix the ink ejected by dots from the ink jet printer to the surface. The pattern layer 2 is a layer in which, for example, a wood grain pattern 3 is printed and formed. The wood grain pattern 3 has an autumn eye pattern portion 3a in which autumn eyes having a high density and a dark color are expressed, and a density and a color are low. And a spring pattern portion 3b in which a light spring is expressed. In the present embodiment, the pattern in the pattern layer 2 is the wood grain pattern 3. However, the present invention is not limited to this, and various patterns such as a stone pattern, a cloth pattern, or an abstract pattern can be applied.

  In synchronization with a part of the wood grain pattern 3 in the pattern layer 2, a raised portion 4 made of a resin material is formed on the autumn pattern portion 3 a by an ink jet printer. As long as the raising part 4 is resin which can be apply | coated using an inkjet printing machine, what kind of resin may be used. However, it is necessary to select appropriately considering the adhesiveness with the pattern layer 2 and the adhesiveness with the transparent coating layer 5 formed on the raised portion 4 described later. As the resin used as the material of the raised portion 4, a synthetic resin paint such as an ultraviolet curable type, an electron beam curable type, a heat effect type or a moisture curable type can be suitably used. For example, acrylic, urethane, epoxy or polyester Series resins can be used. Further, the raised portion 4 may be transparent enough to allow the printed pattern of the autumn eye pattern portion 3a to pass therethrough, or may be colored or so-called color clear.

  The inkjet printer used for forming the pattern layer 2 and the raised portion 4 is not particularly limited as long as it is a general inkjet printer, and is a head-fixed printer (line method or single-pass method) and head movement. It is possible to use various printing machines such as a type of printing machine (serial head system). However, it is necessary to use two types, a head for printing the pattern layer 2 and a head capable of printing the raised portion 4. When using a head-fixed ink jet printer, for example, when printing a rectangular decorative board, determine a ruler measurement point, and a pattern (Akime pattern part 3a) obtained by the pattern print head by sensing from the measurement point; Synchronize with the raised portion 4 obtained by the raised portion printing head. On the other hand, when using a head movement type ink jet printer, since the printing object is fixed, the pattern obtained by the pattern print head (Akime pattern portion 3a) and the raised portion obtained by the raised portion printing head. It is easy to achieve synchronization with the unit 4.

  The raised portion 4 can be formed, for example, by increasing the amount of resin applied and setting the viscosity high so that the raised portion 4 is raised. Moreover, you may form the raised part 4 by setting a viscosity low and performing multiple times of repeated coating.

  A transparent coating layer 5 is applied and formed on both the pattern layer 2 and the raised portion 4. Here, the transparent coating layer 5 is formed such that the surface thereof has an uneven shape due to the raised portion 4. That is, the transparent coating film layer 5 located on the raised portion 4 constitutes a convex portion 6a that bulges upward from other portions, while the transparent coating layer 5 located in a region where the raised portion 4 is not formed. The film layer 5 constitutes a recess 6b.

  As the transparent coating layer 5, any resin can be used as long as the resin has transparency enough to transmit the Akimi pattern 3a of the pattern layer 2. A synthetic resin paint such as an ultraviolet curable type, an electron beam curable type, a thermosetting type or a moisture curable type can be suitably used. For example, acrylic, urethane, epoxy, or polyester resins can be used. Moreover, a roll coater, a sponge coater, a spray, a brush, etc. can be used for application | coating of the transparent coating film layer 5, for example. After the transparent coating layer 5 is applied on the pattern layer 2 and the raised portion 4, it is necessary to adjust the viscosity and the coating amount so as not to accumulate in the recess 6 b. Since streaky irregularities occur, it is preferable to adjust the viscosity using a monomer as appropriate.

  Further, the transparent coating layer 5 contains an antifriction material, thereby improving the wear resistance of the decorative board 10. As the anti-friction material, for example, white alumina, green carbon, ceramic powder, or the like can be used, and it is preferable to use one having about 300 to 1500. The antifriction material can increase the wear resistance of the decorative plate 10 as its count decreases, but the surface property becomes rough. On the other hand, the degree of improvement in the wear resistance of the decorative plate 10 increases as the count increases. Since the surface can be made smoother, the antifriction material to be used may be appropriately selected depending on the desired finish level of the decorative board 10 and the intended use.

  A gloss adjusting portion 7 is formed on the surface of the convex portion 6a in the transparent coating layer 5 by performing a process for adjusting the gloss. As the processing, for example, sanding can be used. By using sanding, the surface of the convex portion 6a (gloss adjusting portion 7) can be roughened, and the gloss of the portion can be made lower than that of the concave portion 6b. As a result, it is possible to make a difference between the gloss of the convex portion 6a and the gloss of the concave portion 6b. The count of the abrasive paper used for sanding to reduce gloss is determined according to the surface roughness of the transparent coating layer 5 depending on the particle size and content of the antifriction material contained in the transparent coating layer 5. For example, when the particle size of the antifriction material (for example, white alumina) contained in the transparent coating layer 5 is WA300 to 500 and the content is 5 to 10% by weight, 400 is used to reduce the gloss of the convex portion 6a by sanding. A polishing paper having a count of about 1000 can be used.

  On the contrary, by increasing the smoothness of the surface of the convex portion 6a (gloss adjusting portion 7) in the transparent coating layer 5 and increasing the gloss of the portion higher than the concave portion 6b, the gloss of the convex portion 6a is increased. And the gloss of the recess 6b may be different. In this case, as a process for adjusting the gloss, sanding or buffing using a polishing paper having a large count can be used. The count of the abrasive paper used for sanding to increase the gloss of the convex portion 6a is the surface of the transparent coating layer 5 depending on the particle size and content of the antifriction material contained in the transparent coating layer 5 as in the above case. It is determined according to the roughness. For example, when the particle size of the anti-friction material (for example, white alumina) contained in the transparent coating layer 5 is WA 300 to 500 and the content is 5 to 10% by weight, it is necessary to use polishing paper of about 1000 to 1500. preferable. The buffing is also called a polisher, and is a method of polishing the surface of the decorative board 10 with felt or non-woven fabric in the presence of fine particle polishing powder (compound). By these, the surface (gloss adjustment part 7) of the convex part 6a in the transparent coating film layer 5 becomes smooth, and the gloss of the part can be raised. As a result, it is possible to make a difference between the gloss of the convex portion 6a that synchronizes with the autumn pattern portion 3a of the pattern layer 2 and the gloss of the concave portion 6b that synchronizes with the spring pattern portion 3b. Unlikely, natural texture can be expressed and the design of the decorative board 10 can be improved.

  Further, in the decorative board 10 of the present embodiment, the pattern layer 2 and the raised portion 4 formed by the ink jet printer do not include an antifriction material, and the transparent coating layer 5 formed on them. Since the anti-friction material is contained in this, the wear resistance of the decorative board 10 can be improved without causing problems of the ink jet printer.

  In the present embodiment, the portion that synchronizes with the Akume pattern portion 3a is the convex portion 6a, and the portion that synchronizes with the spring pattern portion 3b is the concave portion 6b. The convex part 6a should just be formed so that it may synchronize with at least one part of the pattern of the layer 2, and the glossiness of the recessed part 6b and the glossiness of the convex part 6a should just be formed differently. Further, not only the wood grain pattern 3 but also, for example, when a stone pattern is used as the pattern in the pattern layer 2, it is possible to improve the design of the decorative board by providing a convex portion so as to synchronize with the stone pattern. it can.

(Second Embodiment)
Hereinafter, a decorative board according to a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a cross-sectional view schematically showing a decorative board according to the second embodiment of the present invention. In the present embodiment, description of the same parts as those in the first embodiment will be omitted, and only different parts will be described.

  As shown in FIG. 2, the decorative board 20 according to the present embodiment is transparent to the extent that the autumn pattern portion 3a of the pattern layer 2 can be transmitted over the pattern layer 2 as compared with the first embodiment. The clear layer 8 having the property is different.

  Specifically, in the decorative board 20 according to the present embodiment, the clear layer 8 is formed on the pattern layer 2, and the raised portion 4 is formed at a position corresponding to the autumn pattern portion 3 a on the clear layer 8. ing. Any resin can be used for the clear layer 8 as long as the resin is transparent enough to pass through the autumn pattern portion 3a of the pattern layer 2. A synthetic resin paint such as an ultraviolet curable type, an electron beam curable type, a thermosetting type or a moisture curable type can be suitably used. For example, acrylic, urethane, epoxy, or polyester resins can be used.

  By forming the clear layer 8 on the pattern layer 2 as in the decorative board 20 of the present embodiment, by providing the clear layer 8 having a certain thickness not only on the convex portion 6a but also on the concave portion 6b. It is possible to provide a decorative board having a more three-dimensional design appearance with different design properties depending on the viewing angle. A pattern layer may be further provided on the clear layer 8.

(Third embodiment)
Hereinafter, a decorative board according to a third embodiment of the present invention will be described with reference to FIG. FIG. 3 is a cross-sectional view schematically showing a decorative board according to the third embodiment of the present invention. In the present embodiment, description of the same parts as those in the first embodiment will be omitted, and only different parts will be described.

  As shown in FIG. 3, the decorative board 30 according to the present embodiment has a process for adjusting its gloss on the surface of the convex portion 6 a in the transparent coating layer 5 as compared with the first embodiment. A gloss adjusting film (finished coating layer) 9 is formed by applying a paint having a gloss different from that of the transparent coating layer 5 only on the surface of the convex portion 6a instead of the gloss adjusting portion 7 formed by being applied. It is different that it is formed.

  Specifically, on the surface of the convex portion 6a, a paint having a gloss lower than that of the transparent coating layer 5 and having a transparency that can pass through the Akimi pattern portion 3a of the pattern layer 2 is, for example, a spray or a brush. The gloss adjusting film 9 is formed by being applied. Thereby, since the glossiness of the convex part 6a and the recessed part 6b can be made, the designability of the decorative board 30 can be improved.

  On the contrary, the gloss adjusting film 9 may be formed by applying a paint having a gloss higher than that of the transparent coating layer 5 only on the surface of the convex portion 6 a in the transparent coating layer 5. Good. Even if it does in this way, since the difference in the glossiness of the convex part 6a and the recessed part 6b can be made like the above, the designability of the decorative board 30 can be improved.

  Also, as a method of lowering the gloss, there are a method of mixing a matting agent with the resin itself to reduce the gloss, and a method of reducing the gloss by mixing coarse powder such as an antifriction material and making the surface uneven. is there.

  As shown in FIG. 4, in the decorative board 20 according to the second embodiment having the clear layer 8, the decorative board 40 is configured by providing the gloss adjusting film 9 instead of the gloss adjusting section 7. It may be.

  The decorative board according to the present invention has a pattern layer printed and formed by the printing machine without causing problems of the ink jet printing machine, and can obtain high designability and wear resistance. Therefore, it is useful for a decorative board having a pattern printed on the surface of the substrate.

DESCRIPTION OF SYMBOLS 1 Base material 2 Pattern layer 3 Wood grain pattern 3a Autumn pattern part 3b Spring pattern part 4 Raised part 5 Transparent coating layer 6a Convex part 6b Concave part 7 Gloss adjustment part 8 Clear layer 9 Gloss adjustment film (finish coating film layer)
10, 20, 30, 40

Claims (6)

A substrate having a smooth surface;
On the surface of the substrate, a pattern layer on which a pattern is printed by an inkjet printer,
A raised portion formed on the pattern layer so as to be synchronized with a part of the pattern of the pattern layer by an inkjet printer,
Formed on the pattern layer and the raised portion, and comprising a transparent coating layer containing an antifriction material,
The transparent coating layer includes a convex portion located on the raised portion and a concave portion located on a region where the raised portion is not formed,
The decorative board, wherein the convex surface of the transparent coating layer has a gloss different from that of the concave surface. Further comprising a transparent clear layer formed on the pattern layer,
The decorative plate according to claim 1, wherein the raised portion is formed on the clear layer so as to be synchronized with a part of the pattern of the pattern layer.   The glossy surface of the convex portion of the transparent coating layer is lower than the surface of the concave portion by being sanded to such an extent that the transparent coating layer is not removed. Decorative board.   The decorative board according to claim 1 or 2, further comprising a finish coating layer formed on the convex portion of the transparent coating layer and having a lower gloss than the transparent coating layer.   The surface of the convex portion of the transparent coating layer is polished so that the transparent coating layer is not removed, so that the gloss is higher than the surface of the concave portion. The decorative board described in 1.   The decorative board according to claim 1 or 2, further comprising a finish coating layer formed on the convex portion of the transparent coating layer and having a gloss higher than that of the transparent coating layer.

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