JP6792395B2 - Coating film composition and building materials - Google Patents

Coating film composition and building materials Download PDF

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JP6792395B2
JP6792395B2 JP2016189227A JP2016189227A JP6792395B2 JP 6792395 B2 JP6792395 B2 JP 6792395B2 JP 2016189227 A JP2016189227 A JP 2016189227A JP 2016189227 A JP2016189227 A JP 2016189227A JP 6792395 B2 JP6792395 B2 JP 6792395B2
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receiving layer
layer
coating film
base material
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JP2018051866A (en
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由紀 小島
由紀 小島
岡山　誠史
誠史 岡山
英男 合川
英男 合川
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KMEW Co Ltd
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Kubota Matsushitadenko Exterior Works Ltd
KMEW Co Ltd
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Description

本発明は、塗膜構成体及び建材に関する。詳しくは、建材等の表面に設けられた塗膜構成体及び塗膜構成体を表面に有する建材に関する。 The present invention relates to a coating film structure and a building material . More specifically, the present invention relates to a coating film structure provided on the surface of a building material or the like and a building material having the coating film structure on the surface .

従来、基材の表面に塗膜を設けて建材が形成されており、この場合、複数の塗膜が積層した塗膜構成体を基材の表面に形成するようにしている（例えば、特許文献１参照）。 Conventionally, a coating film is provided on the surface of a base material to form a building material. In this case, a coating film structure in which a plurality of coating films are laminated is formed on the surface of the base material (for example, Patent Documents). 1).

図２Ａ及び図２Ｂには、表面が木目調に形成された建材２０の一例を示している。建材２０は、表面が凹凸面に形成された基材２４と、凹凸面の全面に亘って形成された受理層２２と、受理層２２の表面に全面に亘って形成されたインク層２３とを備えて形成されており、受理層２２とインク層２３とで塗膜構成体２１が形成されている。受理層２２はインク層２３が定着しやすい塗膜で形成されている。また受理層２２は、インク層２３の発色が得やすいように白色で形成されている。インク層２３はフルカラーのインクジェットプリンタ等を用いて印刷により形成されており、木目調にデザインされている。通常は、白地の受理層２２に対して、ＣＭＹＫ（シアン、マゼンタ、イエロー、黒）インクを網点としてインク層２３を印刷してデザインをつけるようにしている。木目調のインク層２３をフルカラーのインクジェット印刷で表現する際は、インクを吸収して定着させる白色の受理層２２の凹凸柄に合わせて、受理層２２の全面にわたって印刷を行うようにしている。そして、基材２４の凹凸面の凸部の箇所で木目の年輪部分２３１を表現し、基材２４の凹凸面の凹部の箇所で木目の非年輪部分（年輪でない部分）２３２を表現している。 2A and 2B show an example of a building material 20 having a wood grain surface. The building material 20 includes a base material 24 having a surface formed on an uneven surface, a receiving layer 22 formed over the entire surface of the uneven surface, and an ink layer 23 formed over the entire surface of the receiving layer 22. The coating film component 21 is formed by the receiving layer 22 and the ink layer 23. The receiving layer 22 is formed of a coating film on which the ink layer 23 is easily fixed. Further, the receiving layer 22 is formed in white so that the color of the ink layer 23 can be easily obtained. The ink layer 23 is formed by printing using a full-color inkjet printer or the like, and is designed in a wood grain pattern. Normally, the ink layer 23 is printed on the receiving layer 22 on a white background using CMYK (cyan, magenta, yellow, black) ink as halftone dots to add a design. When the wood grain ink layer 23 is expressed by full-color inkjet printing, printing is performed over the entire surface of the receiving layer 22 in accordance with the uneven pattern of the white receiving layer 22 that absorbs and fixes the ink. Then, the annual ring portion 231 of the wood grain is represented by the convex portion of the uneven surface of the base material 24, and the non-annual ring portion (non-annual ring portion) 232 of the wood grain is represented by the concave portion of the uneven surface of the base material 24. ..

特開２００７−１５４４３２号公報JP-A-2007-154432

しかし、実際の木目は、年輪部分が濃色で表面の光沢が少なく、非年輪部分は年輪部分に比べて淡色で光沢がある。すなわち、実際の木目は、場所によって光沢の度合いが異なっているが、上記のようなインクジェット印刷による全面の印刷では、光沢のコントロールが難しく、塗膜構成体の木目調を実際の木目のような外観にすることが難しかった。 However, in the actual grain, the annual ring part is dark and the surface is less glossy, and the non-annual ring part is lighter and glossier than the annual ring part. That is, although the degree of gloss of the actual wood grain differs depending on the location, it is difficult to control the gloss in the entire surface printing by the above-mentioned inkjet printing, and the wood grain of the coating film composition is similar to the actual wood grain. It was difficult to make it look.

本発明は上記の点に鑑みてなされたものであり、実際の木目のような外観に見えやすい塗膜構成体及びこれを備えた建材を提供することを目的とするものである。 The present invention has been made in view of the above points, and an object of the present invention is to provide a coating film structure having an appearance like an actual wood grain and a building material provided with the same.

本発明に係る塗膜構成体は、着色受理層と、該着色受理層の表面に部分的に設けられる着色層と、を備え、基材の表面に形成された凹凸面に形成される塗膜構成体であって、前記着色層は、前記基材の凸部表面に設けられており、前記基材の凹部に対応する位置には設けられておらず、木目の年輪部分を表現しており、前記着色受理層は、前記凹部に対応する位置に設けられて木目の非年輪部分を表現しており、前記着色受理層は光沢を有し、前記着色層は前記着色受理層よりも光沢が少なくて濃色に形成されている。 Coating structure according to the present invention, a colored-receiving layer, e Bei and a colored layer provided partially on the surface of the colored-receiving layer, Ru is formed on the uneven surface formed on the surface of the substrate coating In the film structure, the colored layer is provided on the surface of the convex portion of the base material, and is not provided at a position corresponding to the concave portion of the base material, and represents an annual ring portion of wood grain. The colored receiving layer is provided at a position corresponding to the concave portion to represent a non-annual ring portion of wood grain, the colored receiving layer has gloss, and the colored layer is glossier than the colored receiving layer. Is formed in a dark color with little.

上記塗膜構成体において、前記着色受理層はマイカを含有していることが好ましい。 In the coating film structure, it is preferable that the colored receiving layer contains mica.

本発明に係る建材は、前記基材と、該基材の表面に形成された前記塗膜構成体と、を備える。 The building material according to the present invention includes the base material and the coating film constituent formed on the surface of the base material.

本発明は、光沢を有する着色受理層で木目の非年輪部分を表現することができ、着色受理層よりも光沢が少なくて濃色に形成されている着色層で木目の年輪部分を表現することができ、実際の木目のような外観に見えやすい。 In the present invention, the non-annual ring portion of wood grain can be represented by a colored receiving layer having luster, and the annual ring portion of wood grain can be represented by a colored layer formed in a darker color with less luster than the colored receiving layer. It is easy to see the appearance like an actual wood grain.

図１Ａは、本発明に係る塗膜構成体の一実施の形態を示す断面図である。図１Ｂは、本発明に係る塗膜構成体の一実施の形態を示す平面図である。FIG. 1A is a cross-sectional view showing an embodiment of a coating film structure according to the present invention. FIG. 1B is a plan view showing an embodiment of the coating film structure according to the present invention. 図２Ａは、従来例を示す断面図である。図２Ｂは、従来例を示す平面図である。FIG. 2A is a cross-sectional view showing a conventional example. FIG. 2B is a plan view showing a conventional example.

以下、本発明を実施するための形態を説明する。 Hereinafter, modes for carrying out the present invention will be described.

図１Ａ及び図１Ｂには、本実施の形態の塗膜構成体１を備えた建材１０が示されている。塗膜構成体１は基材４の表面（上面）に全面にわたって設けられている。塗膜構成体１は着色受理層２と着色層３とで構成されている。着色受理層２は基材４の表面に全面にわたって設けられている。着色層３は着色受理層２の表面に部分的に設けられている。 1A and 1B show a building material 10 provided with the coating film constituent 1 of the present embodiment. The coating film structure 1 is provided on the entire surface (upper surface) of the base material 4. The coating film structure 1 is composed of a coloring receiving layer 2 and a coloring layer 3. The coloring receiving layer 2 is provided over the entire surface of the base material 4. The colored layer 3 is partially provided on the surface of the colored receiving layer 2.

基材４は略平板状に形成されており、その表面には凹凸面を有している。凹凸面は複数の凸部４０と複数の凹部４１とが交互に繰り返すように形成されるが、凸部４０の幅寸法や高さ寸法及び凹部４１の幅寸法や深さ寸法は一定でなくてもよく、ランダムに形成することが可能である。基材４は各種の材質で形成することができ、例えば、セメントを含む成形材料の硬化物である窯業系基材、金属板を成形して得られる金属系基材、樹脂材料を成形して得られる樹脂系基材などがある。 The base material 4 is formed in a substantially flat plate shape, and has an uneven surface on its surface. The uneven surface is formed so that the plurality of convex portions 40 and the plurality of concave portions 41 are alternately repeated, but the width dimension and height dimension of the convex portions 40 and the width dimension and depth dimension of the concave portion 41 are not constant. It is also good and can be formed randomly. The base material 4 can be formed of various materials. For example, a ceramic base material which is a cured product of a molding material containing cement, a metal base material obtained by molding a metal plate, and a resin material are molded. There is a resin-based base material obtained.

着色受理層２は着色層３を構成するインクを吸収するなどして定着、発色しやすくするための塗膜である。着色受理層２の塗膜は、例えば、アクリル系エマルションをベースにしたアクリル樹脂塗料やアクリルシリコン系エマルションをベースにしたアクリルシリコン樹脂塗料などの塗膜である。着色受理層２は、インクの定着性を向上させるために体質顔料や吸湿性樹脂などを含有していることが好ましい。また着色受理層２は、基材４の隠蔽性やインクの定着性のために、２０〜１８０μｍの厚みで形成することが好ましい。着色受理層２は、基材４の凹凸面に沿って密着させて全面にわたって形成されている。着色受理層２は所望のデザインの塗膜構成体１に応じて適宜着色されていても良い。 The coloring receiving layer 2 is a coating film for facilitating fixing and coloring by absorbing the ink constituting the coloring layer 3. The coating film of the coloring receiving layer 2 is, for example, a coating film such as an acrylic resin paint based on an acrylic emulsion or an acrylic silicone resin paint based on an acrylic silicone emulsion. The coloring receiving layer 2 preferably contains an extender pigment, a hygroscopic resin, or the like in order to improve the fixability of the ink. Further, the colored receiving layer 2 is preferably formed with a thickness of 20 to 180 μm in order to conceal the base material 4 and fix the ink. The colored receiving layer 2 is formed in close contact with the uneven surface of the base material 4 over the entire surface. The coloring receiving layer 2 may be appropriately colored according to the coating film constituent 1 having a desired design.

着色層３は建材１０の表面に各種の色、柄、模様を付与して化粧し、デザインするための印刷層である。着色層３はインクジェットプリンタなどでデザイン性を高くして印刷して形成することができる。着色層３は、イエロー、シアン、マゼンタ、ブラックの各色の水性インクなどで形成することが可能である。着色層３は着色受理層２の表面に設けられているが、凸部４０の上面に対応する位置（凸部４０の上方）に設けられており、凹部４１に対応する位置には設けられていない。このようにして着色層３は凸部４０の平面形状に沿った形状に形成される。また着色層３が形成されていない箇所では、着色受理層２が着色層３では覆われなくなって、建材１０の表面の意匠を構成することになる。 The colored layer 3 is a printing layer for applying various colors, patterns, and patterns to the surface of the building material 10 to make up and design. The colored layer 3 can be formed by printing with an inkjet printer or the like with high design. The colored layer 3 can be formed of water-based inks of yellow, cyan, magenta, and black. The colored layer 3 is provided on the surface of the colored receiving layer 2, but is provided at a position corresponding to the upper surface of the convex portion 40 (above the convex portion 40) and is provided at a position corresponding to the concave portion 41. Absent. In this way, the colored layer 3 is formed in a shape that follows the planar shape of the convex portion 40. Further, in the portion where the colored layer 3 is not formed, the colored receiving layer 2 is not covered by the colored layer 3, and the design of the surface of the building material 10 is formed.

上記のように形成される塗膜構成体１において、着色受理層２は着色層３よりも光沢（艶）が高く、且つ着色層３よりも淡色になっている。すなわち、着色層３は着色受理層２よりも光沢が低く、且つ着色受理層２よりも濃色になっている。ここで、「光沢」とは、ＪＩＳ Ｋ ５６００−４−７：１９９９「塗料一般試験方法−第４部：塗膜の視覚特性−第７節：鏡面光沢度」に準拠して測定されるものである。本実施の形態においては、着色受理層２の鏡面光沢度が３０〜６０であることが好ましく、着色層３の鏡面光沢度が３０未満であることが好ましい。 In the coating film structure 1 formed as described above, the colored receiving layer 2 has a higher gloss (gloss) than the colored layer 3 and is lighter in color than the colored layer 3. That is, the colored layer 3 has a lower gloss than the colored receiving layer 2 and a darker color than the colored receiving layer 2. Here, "gloss" is measured in accordance with JIS K 5600-4-7: 1999 "General paint test method-Part 4: Visual characteristics of coating film-Section 7: Mirror glossiness". Is. In the present embodiment, the mirror surface glossiness of the coloring receiving layer 2 is preferably 30 to 60, and the mirror surface glossiness of the coloring layer 3 is preferably less than 30.

ここで、着色受理層２の光沢などの外観を調整するにあたっては、マイカを使用することができる。例えば、マイカの含有量を増減させることで、着色受理層２の光沢を増減させたり、マイカを着色受理層２に部分的に含有させて着色受理層２の光沢を不均一にしたり、マイカの形状を変化させることで光沢の度合いを変えたりすることができる。また光沢の色味を木肌に近い黄色味に近づけるために、酸化鉄でコーティングされたマイカを使用することも可能である。マイカの含有量は、着色受理層２に対する所望の光沢度に応じて、適宜調整可能であるが、着色受理層２の全量に対して０．１〜３０質量％とすることができ、より好ましくは、着色受理層２の全量に対して１〜１０質量％とすることができる。 Here, mica can be used to adjust the appearance such as the gloss of the colored receiving layer 2. For example, the gloss of the colored receiving layer 2 can be increased or decreased by increasing or decreasing the content of mica, or the gloss of the colored receiving layer 2 can be made uneven by partially containing mica in the colored receiving layer 2. The degree of gloss can be changed by changing the shape. It is also possible to use iron oxide-coated mica in order to bring the glossy color closer to the yellowish color close to the bark. The content of mica can be appropriately adjusted according to the desired glossiness with respect to the coloring receiving layer 2, but can be 0.1 to 30% by mass with respect to the total amount of the coloring receiving layer 2, which is more preferable. Can be 1 to 10% by mass with respect to the total amount of the colored receiving layer 2.

本実施の形態の塗膜構成体１は以下のようにして形成することが可能である。 The coating film constituent 1 of the present embodiment can be formed as follows.

まず、基材４の表面（凹凸面）に着色受理層２を形成するための塗料を全面にわたって塗布する。この塗料は、建材１０のデザイン等に適した色に着色されていても良いし、マイカを含有していてもよい。塗布方法は、特に限定されず、例えば、ロール塗装やスプレー塗装などを採用することができる。基材４の表面に塗布された塗料は乾燥硬化することで着色受理層２が形成される。 First, a paint for forming the coloring receiving layer 2 is applied over the entire surface of the base material 4 (concavo-convex surface). This paint may be colored in a color suitable for the design of the building material 10 or the like, or may contain mica. The coating method is not particularly limited, and for example, roll coating, spray coating, or the like can be adopted. The paint applied to the surface of the base material 4 is dried and cured to form a coloring receiving layer 2.

次に、着色層３を着色受理層２の表面に形成する。この場合、着色層３はインクジェット印刷等により形成することができる。すなわち、着色層３を形成するためのインク３１をドット状に着色受理層２の表面に付着させるようにして印刷することができる。そしてインク３１を乾燥硬化させることにより着色層３が形成される。ここで、着色層３は基材４の凸部４０の頂面に対応する位置に設けられ、これにより、着色層３により木目の年輪部分を表現することができる。また着色層３が形成されていない着色受理層２により木目の非年輪部分を表現することができる。 Next, the colored layer 3 is formed on the surface of the colored receiving layer 2. In this case, the colored layer 3 can be formed by inkjet printing or the like. That is, the ink 31 for forming the colored layer 3 can be printed in a dot shape so as to adhere to the surface of the colored receiving layer 2. Then, the colored layer 3 is formed by drying and curing the ink 31. Here, the colored layer 3 is provided at a position corresponding to the top surface of the convex portion 40 of the base material 4, whereby the annual ring portion of the wood grain can be expressed by the colored layer 3. Further, the non-annual ring portion of the wood grain can be expressed by the colored receiving layer 2 in which the colored layer 3 is not formed.

このように形成される塗膜構成体１は、非年輪部分を表現する着色受理層２の光沢が強調され、年輪部分を表現する着色層３の光沢が抑制されることで、平面視で見た場合に、実際の木目のような外観を有する木目調に形成される。また着色層３は着色受理層２の全面には印刷せずに、年輪部分を表現する部分のみに局所的な印刷となるために、着色層３の形成時のコストダウンを図ることができる。 The coating film structure 1 thus formed is viewed in a plan view by emphasizing the gloss of the colored receiving layer 2 expressing the non-annual ring portion and suppressing the gloss of the colored layer 3 expressing the annual ring portion. In this case, it is formed in a wood grain shape having an appearance similar to that of an actual wood grain. Further, since the colored layer 3 is not printed on the entire surface of the colored receiving layer 2 but is locally printed only on the portion expressing the annual ring portion, it is possible to reduce the cost at the time of forming the colored layer 3.

１ 塗膜構成体
２ 着色受理層
３ 着色層
４ 基材 1 Coating film composition 2 Colored receiving layer 3 Colored layer 4 Base material

Claims (3)

着色受理層と、
該着色受理層の表面に部分的に設けられる着色層と、を備え、
基材の表面に形成された凹凸面に形成される塗膜構成体であって、
前記着色層は、前記基材の凸部表面に設けられており、前記基材の凹部に対応する位置には設けられておらず、木目の年輪部分を表現しており、
前記着色受理層は、前記凹部に対応する位置に設けられて木目の非年輪部分を表現しており、
前記着色受理層は光沢を有し、
前記着色層は前記着色受理層よりも光沢が少なくて濃色に形成されている
塗膜構成体。 Color receiving layer and
E Bei and a colored layer provided partially on the surface of the colored-receiving layer,
A coating film constituent formed on an uneven surface formed on the surface of a base material .
The colored layer is provided on the surface of the convex portion of the base material, is not provided at a position corresponding to the concave portion of the base material, and represents an annual ring portion of wood grain.
The colored receiving layer is provided at a position corresponding to the recess and represents a non-annual ring portion of wood grain.
The colored receiving layer has a gloss and
The colored layer is a coating film constituent having a darker color than the colored receiving layer. 請求項１において、
前記着色受理層はマイカを含有している塗膜構成体。 In claim 1,
The colored receiving layer is a coating film composition containing mica. 前記基材と、該基材の表面に形成された請求項１又は２の塗膜構成体と、を備えた建材。 A building material comprising the base material and the coating film constituent of claim 1 or 2 formed on the surface of the base material.
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