JP2018052761A - Natural wood-grain decorative fiber-reinforced cement plate and method for producing the same - Google Patents
Natural wood-grain decorative fiber-reinforced cement plate and method for producing the same Download PDFInfo
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- 239000004568 cement Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000003848 UV Light-Curing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 36
- 238000007641 inkjet printing Methods 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 21
- 239000002023 wood Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 238000007639 printing Methods 0.000 abstract description 27
- 239000000758 substrate Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 23
- 239000002585 base Substances 0.000 description 20
- 229910052918 calcium silicate Inorganic materials 0.000 description 13
- 239000000378 calcium silicate Substances 0.000 description 13
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 238000001723 curing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007646 gravure printing Methods 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010454 slate Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 244000128884 Zier Kohl Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、天然木調化粧繊維強化セメント板とその製造方法にかかわる。基板としては石綿以外の繊維で補強され成形されたスレート、ケイ酸カルシウム板及びスラグ石膏板等とする。意匠を付与する方法として塗装、印刷、ラミネート等が実施されているが天然木に似せた高意匠化粧板を得るための多品種少量生産に適した下地処理と印刷技術に関する。 The present invention relates to a natural wood-like decorative fiber reinforced cement board and a method for producing the same. The substrate is a slate reinforced with a fiber other than asbestos, a calcium silicate plate, a slag gypsum plate, or the like. Although the painting, printing, laminating, etc. are carried out as a method for imparting a design, the present invention relates to a base treatment and printing technology suitable for high-mix low-volume production to obtain a high-design decorative board resembling natural wood.
化粧紙の印刷はグラビア印刷が一般的である。グラビア印刷は高価な印刷用の版が必要で多色刷りになるほど高価な印刷版を複数使用する。最近の住宅事情は他社と差別化した色柄の壁材を使用するケースが多くなってきた。また建築主の要望によりオリジナルデザインが求められる場合も多くなってきた。このような事情からインクジェットプリンターが使用されるケースが出てきた。インクジェットプリンターは印刷版を使用しないので１枚から製造ができる。印刷内容はデーターとして保存が可能で何度でも同じものを作ることができる。色の表現は従来のグラビア印刷に比べ多彩で深みのある印刷ができる。少量生産に最適な印刷手段である。 Gravure printing is common for decorative paper printing. Gravure printing requires expensive printing plates, and uses multiple printing plates that are expensive enough to produce multiple colors. In recent housing conditions, there are many cases where wall materials with different color patterns are used. In addition, original designs are often requested at the request of the architect. Under such circumstances, there have been cases where inkjet printers are used. Inkjet printers can be manufactured from one sheet because no printing plate is used. The printed contents can be saved as data and the same can be created any number of times. The color expression is richer and deeper than conventional gravure printing. It is the best printing means for small volume production.
従来東京カラーグラビヤ工業（株）では実際に凹部のある導管孔が形成された木目化粧シートの特許（特許文献１）を取得して永年製造販売してきた。寿工業（株）は東京カラーグラビヤ工業（株）の特許技術を利用して多品種少量生産の要求に適応する天然木調の化粧繊維強化セメント板の製造方法についてインクジェットプリンターを使用する製造方法を研究してきた。 Conventionally, Tokyo Color Gravure Industry Co., Ltd. has obtained and patented a wood grain decorative sheet (Patent Document 1) in which a conduit hole having a concave portion is actually formed and has been manufactured and sold for many years. Kotobuki Kogyo Co., Ltd. uses an ink jet printer manufacturing method for natural wood-like decorative fiber reinforced cement board that adapts to the requirements of high-mix low-volume production using the patent technology of Tokyo Color Gravure Industry Co., Ltd. I have studied.
寿工業（株）は永年ケイ酸カルシウム板を使用して化粧ケイ酸カルシウム板の製造に従事してきた。従来ケイ酸カルシウム板の化粧方法としては塗装、印刷、ラミネートなどが一般的であるがいずれの方法においても基板の下地処理として基材補強とアルカリ止めを目的としたシーラー処理がなされ仕上げの程度に応じて目止め処理が行われる。その表面をサンドペーパーで平滑に研磨して塗装、印刷、ラミネートの化粧が行われる。この目止め処理工程を次工程のインクジェット印刷に適した機能、外観を持たせた目止めシートで行うことを東京カラーグラビヤ工業（株）に依頼した。依頼内容は目止めシートがインクジェット印刷のインク受理層の機能を有すること。基板の凹部を平滑処理できること。癖のない導管孔が形成されておりインクジェットプリンターで印刷される様々な木目に違和感なく適合できること。凹部の深さが最大で３０μｍ程度であること。目止めシートの色がインクジェット印刷の印刷効果を高めるために白色系であることなどである。 Kotobuki Kogyo Co., Ltd. has been engaged in the manufacture of decorative calcium silicate plates using calcium silicate plates for many years. Conventional methods for decorative calcium silicate plates include painting, printing, and laminating. However, in any method, the substrate is treated with a sealer for the purpose of reinforcing the base and stopping the alkali to the extent of finishing. The sealing process is performed accordingly. The surface is polished with sandpaper and painted, printed and laminated. We requested Tokyo Color Gravure Industry Co., Ltd. to perform this sealing process with a sealing sheet having a function and appearance suitable for inkjet printing in the next process. The requested content is that the sealing sheet has the function of an ink receiving layer for inkjet printing. The concave portion of the substrate can be smoothed. Conduit holes with no wrinkles are formed and can be easily fitted to various woods printed by inkjet printers. The depth of the recess is about 30 μm at the maximum. For example, the color of the sealing sheet is white to enhance the printing effect of inkjet printing.
この目止めシートはインクジェット印刷のインク受理層として機能するように設計されており印刷が映えるように白色系に着色されている。白色系のベース印刷層上に設けられた透明なインク受理層は特許技術（特許文献１）により実際凹部のある導管孔が形成されている。白インキの使用により高価なインクジェット印刷のインク使用量を減ずる効果もある。導管孔はいろいろな樹種(柄)に適応できるように凹部が癖のない導管模様となるようにする。不燃性を求められる場合を想定して基材補強シーラーはケイ酸のアルカリ塩からなる無機系シーラーを使用する場合もある（例えば特許文献２）。 This sealing sheet is designed to function as an ink receiving layer for ink jet printing, and is colored white so that printing can be seen. The transparent ink receiving layer provided on the white base print layer is actually formed with a conduit hole having a concave portion by patent technology (Patent Document 1). The use of white ink also has the effect of reducing the amount of ink used for expensive ink jet printing. Conduit holes are designed so that the concavity has no wrinkles so that it can be applied to various tree species (handles). Assuming the case where nonflammability is required, the base material reinforcing sealer may use an inorganic sealer made of an alkali salt of silicic acid (for example, Patent Document 2).
現代の住宅事情に適合できるように少ない数量の場合によっては１枚からの注文に応じられるような生産方法を確立する。外観が多彩で天然木のように見える。見た目の風合いが実際の天然木のように導管孔が凹状になっている。下地処理が共通である。目止めシートが白色のインク受理層となっておりそこに凹凸のある導管孔が設けられてインクジェットの印刷が少ないインキ量で多彩に表現できることが求められている。
平滑に研磨された繊維強化セメント板は巣穴、研磨スジが多数存在しそのまま印刷しても美しい仕上がりは得られない。表面を平滑にして印刷の鮮明さと美しさを得るために下地処理を行う（例えば特許文献３）。これらの目止め処理による下地処理を行わないで目止めシートを貼付することにより平滑下地を得る。この下地処理方法は印刷手段であるインクジェット印刷に適した構成を持ち導管孔を形成するインキ層がインクジェット印刷のインク受理層として機能し更にインクジェット印刷が映えるように白色のインキで作られた目止めシートを多孔質の表面に貼付する。この目止め処理シートを含めて印刷、トップコートした化粧板が不燃規格をクリヤーするためには基材補強シーラーは有機成分の少ない無機系シーラーを使用する場合もある。本発明の目止めシートの紙間補強は有機樹脂で補強されている。目止めシートに設けられる導管孔の凹部は癖のない導管孔が散在するものが望ましい。なぜならば本発明に使用する目止めシートはインクジェット印刷される多品種の意匠に対して共用できることを前提としているからである。導管孔の凹部の深さはインクジェット印刷で埋まらない深さでありインクジェット印刷でインキが流れ込まないように、インキが着弾したら直ちに硬化が始まるＵＶ硬化型のインクジェットプリンターが適している。硬化に時間がかかるとインクが凹部に流れ込んでレベリングしてしまうからである。
Establish a production method that can respond to orders from one piece in some cases in small quantities so as to adapt to the modern housing situation. Appearance is various and looks like natural wood. The appearance is like a real natural wood, and the conduit hole is concave. The ground processing is common. It is required that the sealing sheet is a white ink receiving layer, and there are provided uneven conduit holes in the sheet, so that ink-jet printing can be expressed in various amounts with a small amount of ink.
A smooth polished fiber reinforced cement board has many burrows and polishing streaks, and even if it is printed as it is, a beautiful finish cannot be obtained. Background processing is performed to smooth the surface and obtain the clearness and beauty of printing (for example, Patent Document 3). A smooth base is obtained by pasting the sealing sheet without performing the base processing by these sealing processes. This surface treatment method has a structure suitable for ink jet printing as a printing means, and the ink layer forming a conduit hole functions as an ink receiving layer for ink jet printing and is made of white ink so that ink jet printing can be reflected. A sheet is affixed to the porous surface. In order to clear the non-combustible standard for the decorative board that has been printed and topcoated including this sealing sheet, an inorganic sealer having a small amount of organic components may be used as the base material reinforcing sealer. The inter-sheet reinforcement of the sealing sheet of the present invention is reinforced with an organic resin. It is desirable that the concave portion of the conduit hole provided in the sealing sheet has interstitial conduit holes with no wrinkles. This is because it is assumed that the sealing sheet used in the present invention can be shared with various kinds of designs printed by inkjet. The depth of the concave portion of the conduit hole is a depth that is not filled by ink jet printing, and a UV curable ink jet printer that starts curing immediately after ink landing is suitable so that ink does not flow in ink jet printing. This is because if the curing takes a long time, the ink flows into the recess and is leveled.
多品種少量生産に対応できるように印刷手段としてインクジェットプリンターを採用する。本法は前項で述ベタように高価な印刷版を使用することなく画像データーをもとに印刷を行う。この印刷方法はマゼンタ、黒、シアン、イエロー、白を複合或は単体で発色して多彩な色彩表現をすることが可能である。模様付けするためのインクジェットプリンターはインキが着弾して直ちに硬化が始まるＵＶ硬化装置を備えたインクジェットプリンターが適している。なぜならば硬化に時間がかかるとインクが凹部に流れ込んでレベリングしてしまうからである。 Inkjet printers will be used as printing means so that they can be used for low-mix production. In this method, as described in the previous section, printing is performed based on image data without using an expensive printing plate. In this printing method, magenta, black, cyan, yellow, and white can be combined or used alone to express various colors. As the ink jet printer for patterning, an ink jet printer equipped with a UV curing device that starts curing immediately after ink landing is suitable. This is because if the curing takes a long time, the ink flows into the recess and is leveled.
基板の平滑処理には導管孔が設けられた本発明の根幹の一つとなっているインクジェット印刷用目止めシートを用いる。このシートは東京カラーグラビヤ工業（株）が寿工業（株）の要望を取り込んで開発した実際に凹部のある導管孔がシート表面に設けられた目止め用のシートである。このシートは紙間強度を増すために紙間補強用樹脂が含浸されている。又表面が白色に印刷されその表面にインクジェット印刷のインク受理層として機能するクリヤーが塗布され導管孔のエンボス処理がなされている。（特許文献１）孔目止めシートは癖のない導管孔が設けられておりインクジェット印刷される多くの柄に適応できるようにデザインされている。又インクジェット印刷の色が映えるように目止めシートは白色でできておりインクジェット印刷で白ベタを印刷する必要がなくインキの膜厚を薄くできエンボスの凹部にインキが流れ込むのを少なくしエンボスを目立たせる効果がある。導管孔のエンボスの深さは最大で約３０μｍである。 For the smoothing treatment of the substrate, a sealing sheet for inkjet printing, which is one of the basis of the present invention provided with conduit holes, is used. This sheet was developed by Tokyo Color Gravure Industry Co., Ltd. in response to the request of Kotobuki Industry Co., Ltd., and is a sheet for sealing in which a conduit hole having a concave portion is provided on the sheet surface. This sheet is impregnated with an inter-paper reinforcing resin in order to increase the inter-paper strength. Further, the surface is printed in white, and a clear surface functioning as an ink receiving layer for ink jet printing is applied to the surface to emboss the conduit hole. (Patent Document 1) The hole-sealing sheet is provided with a conduit hole without a wrinkle and is designed to be adaptable to many patterns to be ink-jet printed. In addition, the sealing sheet is white so that the color of ink-jet printing can be reflected, and it is not necessary to print white solids by ink-jet printing, so that the ink film thickness can be reduced and ink does not flow into the recesses of the emboss, making the emboss stand out. There is an effect. The embossed depth of the conduit hole is about 30 μm at maximum.
基材表面を補強し目止めシートとの付着強度を上げるために基材補強有機系シーラーを塗布するが不燃性を重視する場合は例えば（特許文献２）の無機シーラーを使用してもよい。 In order to reinforce the base material surface and increase the adhesion strength with the sealing sheet, a base material reinforced organic sealer is applied. However, when importance is placed on nonflammability, for example, an inorganic sealer of (Patent Document 2) may be used.
実際に凹部のある導管孔付きの目止めシートをケイ酸カルシウム板に貼り合わせてオーク柄のデーターを用いて（株）ミマキエンジニアリングのＬＥＤＵＶフラットベッドタイププリンターＪＦＸ２００−２５１３のインクジェットプリンターを用いて印刷条件を６００×９００ｄｐｉの１２パスで印刷したところオーク柄の天然木調の化粧ケイカル板が鮮やかに再現できた。微細な導管孔もはっきり視認できた。インクの塗膜厚は最大で１０μｍで最大深さ約３０μｍの目止めシートの導管孔は埋まることはなく微細な導管孔が再現できた。インク受理層が白色でクリヤー層にエンボスが形成されているためインクジェット印刷で白ベタを印刷しなくても鮮明な画像が得られインクジェット印刷のインキの使用量が少なく、導管孔がインキで埋まることがなく、導管孔の凹がはっきり表現できた。今回使用したインクジェットプリンターは１２３０ｍｍ×２４３０ｍｍが印刷できる装置で９１０ｍｍ×２４３０ｍｍ厚さ６ｍｍのケイ酸カルシウム板に無機シーラーを塗布し目止めシートをＰＵＲで貼った基板にオーク柄を印刷したところ印刷時間は１５分で１枚印刷できた。この印刷は１枚から印刷でき少量の印刷に最適である。 Printing conditions using an ink jet printer of MIMAKI ENGINEERING LED UV flatbed type printer JFX200-2513 using oak pattern data by bonding a sheet with a conduit hole having a concave portion to a calcium silicate plate Was printed in 12 passes of 600 x 900 dpi, and an oak-patterned natural wood-like decorative kale board could be reproduced vividly. Fine conduit holes were also clearly visible. The coating film thickness of the ink was 10 μm at the maximum and the conduit hole of the sealing sheet having the maximum depth of about 30 μm was not filled, and a fine conduit hole could be reproduced. Since the ink receiving layer is white and the emboss is formed in the clear layer, a clear image can be obtained without printing white solids by ink jet printing, and the amount of ink used for ink jet printing is small, and the conduit holes are filled with ink. There was not, and the concave of the conduit hole was clearly expressed. The inkjet printer used this time is a device capable of printing 1230mm x 2430mm. When printing an oak pattern on a 910mm x 2430mm 6mm thick calcium silicate plate coated with an inorganic sealer and pasting a sealing sheet with PUR, the printing time is One sheet could be printed in 15 minutes. This printing can be performed from one sheet and is most suitable for a small amount of printing.
目止めシートを貼ることにより平滑な仕上がり面を得ることができた。 A smooth finished surface could be obtained by applying a sealing sheet.
（００１１）項で作られた印刷板にアクリルウレタンクリヤー（商品名：ＵＣクリヤー３部艶 ＤＩＣ（株））を３３ｇ／m2エアースプレーで塗布したのち１００℃で３分間乾燥して透明カバー層を設け天然木調化粧ケイ酸カルシウム板を得た。コーンカロリーメーターで発熱量を調ベタところ７．２ＭＪ／cm2で不燃規格をクリヤーした。 Acrylic urethane clear (trade name: UC Clear 3 parts Gloss DIC Co., Ltd.) is applied to the printing plate made in item (0011) by 33 g / m 2 air spray and then dried at 100 ° C. for 3 minutes to form a transparent cover layer A natural wood-like makeup calcium silicate board was obtained. The calorific value was adjusted with a corn calorimeter, and the non-combustible standard was cleared at 7.2 MJ / cm 2 .
本発明の天然木調化粧繊維強化セメント板の製造方法においてはインクジェットプリンターがＵＶ硬化装置を備えることによりインクの流れ込みを防ぎ微細な導管孔の凹を表現できる。 In the method for producing a natural wood-like decorative fiber reinforced cement board according to the present invention, the ink jet printer is provided with a UV curing device, so that the inflow of ink can be prevented and the concaves of fine conduit holes can be expressed.
以下必要に応じて図面を参照しつつ、本発明の好適な実施形態について詳細に説明する。なお、図面中、同一要素には同一符号を付すこととし、重複する説明は省略する。又図面の寸法比率は図示の比率に限られるものではない。本発明の導管孔が実際に凹部を有する化粧板は天然木を対象物とし当該対象物の表面の模様が描かれた不燃性の化粧板である。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios. The decorative board in which the conduit hole of the present invention actually has a recess is a non-combustible decorative board in which a natural wood is an object and the surface pattern of the object is drawn.
図１は、本発明に係る凹凸化粧板の一実施形態を模式的に示す斜視図である。図１に示すように、本実施形態に係る不燃性の微細な導管孔を有する化粧板は板状の基部１と基部の表層を強化しアルカリ滲出を防止するシーラー層２と接着剤層３（例えばＰＵＲＨＭ）と微細な導管孔を有する白色の目止めシート４とインクジェットプリンターにより描かれた木目模様層５とその上面をカバーする透明カバー層６を備える。板状基部としてはケイ酸カルシウム板、繊維補強スレート板、スラグ石膏ボード等が適当である。図２は微細な導管孔を有する目止めシートの模式斜視図である。基体シート７、白インキ層８、インクジェットプリンターのインキ受理層の働きをするクリヤー層９及び微細な導管孔１０よりなる。
FIG. 1 is a perspective view schematically showing one embodiment of the uneven decorative board according to the present invention. As shown in FIG. 1, the decorative board having nonflammable fine conduit holes according to the present embodiment strengthens the plate-like base 1 and the surface layer of the base to prevent alkali exudation and the adhesive layer 3 ( For example, PURHM), a
本実施形態に係る微細な導管孔を有する天然木調化粧板は実際に凹部を有する目止めシートを使用しているので触手でも窪みを認識できる。又この目止めシートに設けられた導管孔は癖のない導管孔が設けられているのでインクジェット印刷で描かれる多くの木目模様に適合できる。 Since the natural wood-like decorative board having fine conduit holes according to the present embodiment actually uses a sealing sheet having a recess, the tentacles can recognize the depression. In addition, since the conduit hole provided in the sealing sheet is provided with a conduit hole having no wrinkles, it can be adapted to many wood grain patterns drawn by ink jet printing.
以下、各構成について更に詳細に説明する。
基部１としては、繊維強化セメント板（フレキシブルボード、ケイ酸カルシウム板、スラグ石膏ボード等）の窯業系基材が適している。まず基材補強及びアルカリ止めの観点から湿気硬化型イソシアネート樹脂、エポキシ樹脂等を表面シーラーとして塗装する。シーラー剤としては有機系のウレタン樹脂、エポキシ樹脂、アクリル樹脂、無機系プライマー等があるが不燃性を確保し火災時に煙を発生させないように不燃性を重視する場合は無機系シーラーが適している。目止め用シートとしては本発明のインクジェット印刷に適した東京カラーグラビヤ工業（株）製ＰＥＰＩＪＰ１シートが最適である。シーラーで強化された繊維強化セメント板の表面に例えばＰＵＲＨＭ（商品名ＭＲ５５Ｐメーカー名ヘンケル株式会社）系の接着剤を１１０ｇ±１０ｇ／m2塗布して東京カラーグラビヤ工業（株）製ＰＥＰＩＪＰ１を目止めシートとして貼り合わせる。本目止めシートは基材であるケイ酸カルシウム板の表面の巣穴を隠し木目模様の導管孔を形成しインクジェット印刷のインク受理層の機能を持ち白印刷されているのでインクジェット白印刷の白ベタを省略できる。従ってインキ量が少なくて済み高価なインクジェット印刷のインキ使用量を減じてコストダウンでき深さ最大約３０μｍの深さで形成される導管孔を埋め込むことは少なくなり微細な導管孔を立体的に表現する。白ベタ印刷をしない分膜厚が薄くて不燃性試験に対しても有利となる。インクジェットプリンターはＵＶ硬化型が最適で例えばミマキエンジニアリング（株）のＪＦＸ２００−２５１３が１例である。着弾したインキ粒が直ちに硬化するのでインキの凹部への流れ込みは極めて少ない。前記のインクジェットプリンターでハイスピード印刷した時インクジェットプリンターによるインキの膜厚は最大１０μｍの厚さであった。透明カバー層として３部艶のアクリルウレタンクリヤーをエアースプレーで３０ｇ±３ｇ／m2塗布して１００℃で３分間乾燥する。図１に示される微細な凹部を有する導管孔とそれにマッチした木目が描かれた天然木にきわめて近い表情を持つ不燃性の木目調化粧板を得た。
Hereinafter, each configuration will be described in more detail.
As the base 1, a ceramic base material such as a fiber reinforced cement board (flexible board, calcium silicate board, slag gypsum board, etc.) is suitable. First, from the viewpoint of reinforcing the base material and stopping alkali, a moisture curable isocyanate resin, epoxy resin or the like is applied as a surface sealer. There are organic urethane resins, epoxy resins, acrylic resins, inorganic primers, etc. as sealers, but inorganic sealers are suitable when emphasizing nonflammability to ensure nonflammability and prevent smoke generation in the event of a fire . As the sealing sheet, a PEPIJP1 sheet manufactured by Tokyo Color Gravure Industry Co., Ltd. suitable for the ink jet printing of the present invention is optimal. For example, PURHM (trade name: MR55P manufacturer name: Henkel Co., Ltd.)-Based adhesive 110 g ± 10 g / m 2 is applied to the surface of the fiber reinforced cement board reinforced with sealer, and the PEPIJP1 manufactured by Tokyo Color Gravure Industry Co., Ltd. Stick together as a sheet. This sealing sheet conceals the burrows on the surface of the calcium silicate board, which is the base material, and forms a conduit hole with a wood grain pattern, and has the function of an ink receiving layer for inkjet printing. Can be omitted. Therefore, it is possible to reduce the cost by reducing the amount of ink used for expensive inkjet printing, which requires a small amount of ink, and embeds the conduit hole formed with a depth of about 30 μm at maximum, and the fine conduit hole is three-dimensionally expressed. To do. This is advantageous for non-flammability tests because the film thickness is thin enough to avoid white solid printing. For example, JFX200-2513 manufactured by Mimaki Engineering Co., Ltd. is an example of the UV curable ink jet printer. Since the landed ink particles are immediately cured, the ink flows into the recesses very little. When high-speed printing was performed with the above-described ink jet printer, the ink film thickness by the ink jet printer was a maximum thickness of 10 μm. As a transparent cover layer, 3 parts gloss acrylic urethane clear is applied by air spray at 30 g ± 3 g / m 2 and dried at 100 ° C. for 3 minutes. A non-combustible woodgrain decorative board having an expression very close to that of a natural wood in which a conduit hole having fine concave portions shown in FIG.
以下、実施例により本発明をさらに具体的に説明するが、本発明はこれらの実施例に限定されるものではない。 EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.
(実施例１)
オーク柄の天然木調化粧板について説明する。基部として９１ｃｍ×１８２ｃｍ×６ｍｍのケイ酸カルシウム板（商品名：ハイラックＭ、株式会社エーアンドエーマテリアル製）を用意した。シーラー剤として無機プライマー（商品名：寿プライマー、寿工業（株）製）を水で１００％希釈して表面に８８ｇ／m2となるように塗布した。１日放置後ＰＵＲＨＭ（商品名：ＭＲ５５Ｐヘンケル株式会社（株）製）をホットメルト塗布ロールコータ―により表面に１１０ｇ／m2塗布し直ちにラミネーティングマシンを通して微細な導管孔が設けられた目止めシート（商品名：ＰＥＰＩＪＰ１、東京カラーグラビヤ工業株式会社製）を貼付した。
(Example 1)
An oak patterned natural wood-like decorative board will be described. A 91 cm × 182 cm × 6 mm calcium silicate plate (trade name: Hilac M, manufactured by A & A Materials Co., Ltd.) was prepared as a base. As a sealer, an inorganic primer (trade name: Kotobuki Primer, manufactured by Kotobuki Kogyo Co., Ltd.) was diluted 100% with water and applied to the surface so as to be 88 g / m 2 . After standing for 1 day, PURHM (trade name: manufactured by MR55P Henkel Co., Ltd.) is applied to the surface with a hot melt coating roll coater, and 110 g / m 2 is immediately applied to the sealing sheet provided with fine conduit holes through a laminating machine. (Product name: PEPIJP1, manufactured by Tokyo Color Gravure Industry Co., Ltd.) was attached.
次に、図４に示すスキャナー（商品名：ＳＣＡＭＥＲＡ、ニューリー製）を用いてオークの天然木をスキャニングし画像処理を行い９１ｃｍ×１８２ｃｍ用の画像データーＡを用意した。 Next, image data A for 91 cm × 182 cm was prepared by scanning an oak natural tree using a scanner (trade name: SCAMERA, manufactured by Newry) shown in FIG. 4 and performing image processing.
次に（００２１）項で目止めシートを貼付したケイ酸カルシウム板をインクジェットプリンター（商品名：ＪＦＸ２００−２５１３、株式会社ミマキエンジニア製）を用いて印刷を行った。まずは、目止めシートが貼付された繊維強化セメント板を正確に位置決めして静置したのちに画像データーＡを用いてオーク柄の印刷を行った。印刷の木目と目止めシートに設けられた微細な導管孔がマッチして天然木にきわめて類似したオーク柄の天然木調化粧繊維強化セメント板を得た。更にその上に３部艶アクリルウレタンクリヤー（商品名：ＵＣクリヤー３艶、ＤＩＣ株式会社製）をエアースプレーで３０ｇ／m2塗布し１００℃で３分間乾燥して透明カバー層を得た。
こうして実際に凹部を有する導管孔のある天然木調化粧繊維強化セメント板を得た。これらはオーク柄の突き板と同等の意匠性を有するものであった。
Next, the calcium silicate plate on which the sealing sheet was affixed in the item (0021) was printed using an inkjet printer (trade name: JFX200-2513, manufactured by MIMAKI ENGINEERING CO., LTD.). First, the fiber reinforced cement board with the sealing sheet attached was accurately positioned and allowed to stand, and then the oak pattern was printed using the image data A. The fine grain holes on the printed wood and the sealing sheet matched to obtain an oak-patterned natural wood-like decorative fiber reinforced cement board very similar to natural wood. Further, 3 parts gloss acrylic urethane clear (trade name: UC clear 3 gloss, manufactured by DIC Corporation) was applied by air spray at 30 g / m 2 and dried at 100 ° C. for 3 minutes to obtain a transparent cover layer.
In this way, a natural wood-like decorative fiber reinforced cement board with conduit holes actually having recesses was obtained. These had the same design as an oak veneer.
本発明の実際に凹部のある天然木調化粧ケイ酸カルシウム板はプレハブ化、ユニット化した住宅また、この他にも一般公共施設、ビル、マンション等の装飾をする建築材料として利用することもでき、また機能性、耐久性を必要としない装飾物例えば段ボール、発泡スチロールの装飾にも可能性がある。 The natural wood-like decorative calcium silicate board with concave portions of the present invention can be used as a prefabricated or unitized house, or as a building material for decoration of general public facilities, buildings, condominiums, etc. Also, there is a possibility for decorations such as corrugated cardboard and polystyrene that do not require functionality and durability.
１. 基部
２. シーラー
３. 接着剤層（例えばＰＵＲＨＭ）
４. 目止めシート
５. インクジェット層
６. 透明カバー層（ＴＯＰコート）
７. 基材シート
８. 白インキ層
９. クリヤー層
１０．導管孔
1.
4. Sealing
7.
Claims (6)
A method for producing a natural wood-like decorative fiber reinforced cement board, wherein the ink jet printer according to claim 5 is a device having a UV curing mechanism.
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