JPS59225774A - Preparation of embossed decorative board - Google Patents

Abstract

PURPOSE:To form a decorative board excellent in artistic design effect, by a method wherein a siliceous extender pigment-containing substance is applied onto a substrate and, subsequently, a picture pattern is printed by using curable or solvent resistant ink while a catalyst-containing ultraviolet ray curable resin is applied to the entire surface. CONSTITUTION:Ink or a paint 5 containing 10-50pts.wt. of a siliceous extender pigment is applied to the entire surface or the recessed parts of a substrate 1 and a picture pattern is subsequently printed to parts coming to protruded parts by using a curable or solvent resistant ink 3. Thereafter, a top coat paint 4 comprising an ultraviolet ray curable resin containing a perioxide polymerization catalyst is further applied to the entire surface and the coated substrate is irradiated with ultraviolet rays at a line speed of 150-400m/min. By this method, a decorative board having a sharp embossed pattern synchronous to a picture pattern is efficiently formed.

Description

【発明の詳細な説明】 本発明は、絵柄に同調したシャープな凹凸模様を有する
意匠的に優れた凹凸化粧材を極めて効率的に製造する方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for extremely efficiently producing a decorative decorative material having an excellent design and having a sharp uneven pattern that matches a pattern.

従来、化粧材表面の印刷模様とエンボス模様を同調させ
る手法として特に有効なものは１例えば、凹部としたい
絵柄のインキに上塗塗料を反撥させる性質を持たせ、そ
の作用により凹凸効果を出す方法、および四部としたい
絵柄のインキに上塗塗料の硬化抑制剤を混入し、上塗塗
料の硬化速度に差をつけて凹凸効果を出す方法がある。Conventionally, a particularly effective method for synchronizing the printed pattern and the embossed pattern on the surface of decorative materials is 1. For example, a method in which the ink of the pattern desired to be formed in the concave portions has the property of repelling the top coat paint, and this effect produces an uneven effect; Another method is to mix a topcoat curing inhibitor into the ink of the pattern you want to make into four parts, and create a uneven effect by varying the curing speed of the topcoat.

しかしながら、これらの方法にはそれぞれ大きな欠点が
あ文 る。例えば前者は、液体を発撥させる作用を利用する為
に巾方向に制限があり、木目の導管部程度の絵柄にしか
応用できないし、後者は硬化抑制剤を混入した部分の上
塗り塗料の硬化が阻害され、物性不良となってしまい、
又硬化抑制剤を混入したインキ自体の保存安定性に問題
がある等の欠点を有する。However, each of these methods has major drawbacks. For example, the former method uses the effect of repelling liquid, so there is a limit in the width direction, and it can only be applied to designs that are similar to the conduit part of the wood grain, and the latter method does not allow the hardening of the top coat of the area mixed with the hardening inhibitor. This results in poor physical properties.
Further, there are disadvantages such as problems with the storage stability of the ink itself containing a curing inhibitor.

その他に浸透性の良い基材に樹脂の浸透を阻止するイン
キで模様を施し上塗塗料の基材へのＶ透。In addition, a pattern is applied to a highly permeable base material using an ink that prevents the penetration of resin, allowing the top coat to pass through the base material.

ル浸透により凹凸を持たせろ方法も知られているが、基
材自体の浸透性に依存する為に、非浸透部以外の部分へ
は浸透を妨げるという叩出でインキによる絵付け、でき
ないという問題がある。また。There is also a known method of creating unevenness by penetrating the base material, but since it depends on the permeability of the base material itself, there is a problem that it is impossible to paint with ink by punching out, which prevents penetration into areas other than non-penetrating areas. There is. Also.

２− 基材の含水率等によって浸透に微妙な差が生じ、凹凸を
デン、トロールできない・そして通常、上塗塗料の溶剤
の蒸発、硬化の段階で凹凸のシ゛ヤープさが著しく損わ
れてしまい、上塗塗料の乾燥、硬化のスピードを高速、
かつ微妙にコントロールしないと浸透むらが出パ易（、
得られる凹凸の段差も　、凹凸とソうほど０も１７）ｃ
″はなく・艶差程度０ものとなり、あまり有効なもので
な（実生産に利用できなかっ−た。。2- There are subtle differences in penetration depending on the moisture content of the base material, and it is not possible to traverse the unevenness. Usually, the sharpness of the unevenness is significantly lost during the evaporation and curing stage of the topcoat solvent, and the topcoat is Faster paint drying and curing speed,
And if you don't carefully control it, uneven penetration can easily occur (,
The level difference in the resulting unevenness is also 0 as the unevenness increases.17)c
There was no difference in gloss and the difference in gloss was zero, so it was not very effective (could not be used for actual production).

本発明は以上の様な問題点を解決する為に発明されたも
のである。The present invention was invented to solve the above problems.

以下本発明の詳細な説明する。The present invention will be explained in detail below.

まず第１図に示すように基材（１１０表面にシリカ系体
質顔料を１０〜５ｏ・重量部含むインキ又は塗料で凹部
の絵柄層）を形成した後に′、凸部としたい部分に上塗
り塗料の浸透を阻害する為に、熱硬化性ノインキ又４２
耐溶剤性のある樹脂よりなるインキを用いて凸部の絵柄
（３）を設ける。凸部の絵柄の高さは任意であり、熱硬
化性のインキとしてはアクリルウレタン系、ウレタン系
、メラミン系、アクリル系等の硬化性のバインダーを使
用したインキを、そして耐溶剤性のあるインキとしては
、セルロース系、ウレタン系等の熱可塑性樹脂をバイン
ダーとしたインキ等が望ましい。First, as shown in Figure 1, after forming a base material (a pattern layer in the concave areas with an ink or paint containing 10 to 5 parts by weight of a silica-based extender pigment on the surface of 110), apply a top coat to the areas where you want to make convex areas. To inhibit penetration, thermosetting ink or 42
A convex pattern (3) is provided using ink made of solvent-resistant resin. The height of the pattern on the convex part is arbitrary, and as thermosetting ink, ink using a hardening binder such as acrylic urethane type, urethane type, melamine type, acrylic type, etc., and solvent resistant ink. Ink using a thermoplastic resin such as cellulose or urethane as a binder is preferable.

次に第２図に示すように上塗塗料（４）として紫外線硬
化型塗料に有機過酸化物触媒を加えた塗料を１０〜２０
μの厚さで塗布し、次いでｓｏｗ／ＣＩｎの高圧水銀ラ
ンプ６本にて、ジーインスピード１５０〜３ｏｏ の塗料を硬化させた後、後キユアとして紫外線の透過し
ない絵柄層内浸透部分の塗料を加熱により硬化させる。Next, as shown in Figure 2, as a top coat (4), 10 to 20% of a UV-curable paint with an organic peroxide catalyst added to it.
After applying the paint to a thickness of μ, and then curing the paint using 6 sow/CIn high pressure mercury lamps at a g-in speed of 150 to 3oo, as a post-cure, apply the paint to the penetrating parts of the pattern layer where ultraviolet rays do not pass through. Harden by heating.

この紫外線照射のラインスピード５は塗布された上塗塗
料が四部の絵柄（２）の部分では絵柄層内に浸透し、凸
部の絵柄゛（３）の部分では皮膜を形成して全体として
凹凸模様を形層ｉるまでに必要な時間を確保する為に必
要な限定であり、４ｏｏｍ／分以上になると紫外線硬化
型塗料が凹部の絵柄の部分に光分に浸透しないうちに硬
化してしまい、１５０ｍ／分以下になると凸部の絵柄の
部分に塗布された紫外線硬化型塗料が凹部の絵柄の部分
へ流れ出して、いずれの場合にもシャープな凹凸が得ら
れない。また、絵柄層に浸透した塗料は紫外線力を当起
らず未硬化状態であるので、後そ加熱硬化させるが、ラ
インスピードは限定されない。The line speed 5 of this ultraviolet irradiation is such that the applied top coat penetrates into the pattern layer in the pattern (2) of the four parts, and forms a film in the convex part of the pattern (3), resulting in an uneven pattern as a whole. This is a necessary limitation to ensure the necessary time to form a layer, and if the rate exceeds 4 ooms/min, the UV-curable paint will harden before the light penetrates into the pattern part of the recess. If the speed is less than 150 m/min, the ultraviolet curable paint applied to the patterned areas of the convex portions will flow out to the patterned areas of the concave areas, and in either case, sharp unevenness cannot be obtained. Further, since the paint that has penetrated into the pattern layer is not exposed to ultraviolet light and is in an uncured state, it is then cured by heating, but the line speed is not limited.

なお、第３図に示すように基材＋Ｉｌの表面に塗布する
シリカ系体質顔料を含むインキ、又は塗料（５）は、絵
柄状ではなく全面に施すこともでき、この場合は凸部の
絵柄（３）がその上に重なった状態となり，得られる凹
凸化粧材は第４図に示すようになる。′ 本構成により得られた凹凸模様は以下の要因でシャープ
性および大きな凹凸段差を有している。In addition, as shown in Fig. 3, the ink or paint (5) containing a silica-based extender pigment applied to the surface of the base material + Il can be applied not only to the pattern but also to the entire surface. (3) is superimposed on it, and the resulting uneven decorative material is as shown in FIG. ' The uneven pattern obtained by this configuration has sharpness and large uneven steps due to the following factors.

まず、シリカ系体質顔料を含むインキは上塗塗料の浸透
を速かにさせ、′硬化性インキ、又は耐溶剤性インキ層
は上塗塗料の浸透を著しく妨げ、しがも］上塗塗料に門
外線硬化塗料を使用す木゛ことにより、高スピードで瞬
間的に表面層を硬化させる事ができるので、浸透の差に
よる段差を最大の状態に保ったまま硬化させる事ができ
凶。通常の＝５− 熱硬化型、溶剤蒸発型の上塗塗料では、溶剤の蒸発、硬
化の過程でラインスピードは最大でも１００〜１２０ｍ
／分が限度であるので、瞬間的には乾燥、硬化しない為
に浸透の段差を最大の状態に保つことは困難である。First, inks containing silica-based extender pigments allow the topcoat to penetrate quickly, while curable inks or solvent-resistant ink layers significantly impede the penetration of the topcoat. By using paint, the surface layer can be cured instantaneously at high speed, making it possible to cure while keeping the level difference due to the difference in penetration to a maximum. Normal = 5- For thermosetting and solvent evaporation type top coat paints, the line speed is at most 100 to 120 m during the solvent evaporation and curing process.
per minute, so it is difficult to maintain the maximum level of penetration because it does not dry or harden instantaneously.

また、紫外線硬化型の上塗塗料は１００％固型分の物を
使用する為に溶剤の蒸発°による凹凸の損失が全（な（
、シャープさを保つことができる。In addition, since UV-curable topcoat paints use 100% solids, there is no loss of unevenness due to solvent evaporation.
, can maintain sharpness.

そして有機過酸化物が添加されている為に凹部の紫外線
のあたらない部分は後加熱により硬化させる事ができ、
未硬化部分は残らない。　　　゛なお、基材は薄葉紙、
チタン紙等の紙、ポリエステルフィルム、塩化ビニルフ
ィルム等のプラスチックフィルム、アルミ板，鉄板等の
金属板等の印刷可能なものであれば任意であり、紫外線
硬化型塗料はラジカル重合型のものであれば特に限定さ
れないが、硬化スピードの点からアクリル系のものが有
利である。And since organic peroxide is added, the parts of the recesses that are not exposed to ultraviolet rays can be cured by post-heating.
No uncured parts remain.゛The base material is thin paper,
Any printable material is acceptable, such as paper such as titanium paper, plastic film such as polyester film, vinyl chloride film, metal plate such as aluminum plate, iron plate, etc. UV-curable paint may be of the radical polymerization type. Although not particularly limited, acrylic materials are advantageous in terms of curing speed.

有機過酸化物触媒としては，ｔニブチルノ・イドロバ−
オキサイド、メヂルエチルケトンパーオキＡ− サイド、ラウロイルパーオキサイド、ベンゾイルパーオ
キサイド、ｔ−ブチルパーオキシフタレート等があるが
特に限定されない。As an organic peroxide catalyst, t-nibutylhydrobar
Examples include, but are not particularly limited to, oxide, methyl ethyl ketone peroxide A-side, lauroyl peroxide, benzoyl peroxide, and t-butyl peroxyphthalate.

次に本発明の実施例について説明する。Next, examples of the present invention will be described.

（実施例） 原紙として坪量３０　ｇ／　ｍの薄葉紙を用い、これに
通常のグラビア印刷法で下記組成１のインキでタイル柄
を印刷し、更にタイルの目地に相当する以外の部分を下
記組成２のインキを使用して８０μのベタ版でその上か
ら印刷した。次に下記組成６の紫外線硬化型塗料を２０
９／ｒｒｌの塗布量で上塗りし一８０Ｗ／ｃｒｒＬの高
圧水銀ランプ６本を使用してラインスピード１５０７ｙ
１／分の速さで表面層を硬化させた後、１５０’０３０
秒で後キユアさせたところ。(Example) Thin paper with a basis weight of 30 g/m was used as the base paper, and a tile pattern was printed on it using an ink with the following composition 1 using the normal gravure printing method, and the areas other than the joints of the tiles were printed with the following composition. Using ink No. 2, printing was carried out on top of it with an 80μ solid plate. Next, apply 20% of the UV-curable paint with the following composition 6.
Topcoat with a coating amount of 9/rrl and line speed 1507y using six 80W/crrL high pressure mercury lamps.
After curing the surface layer at a rate of 1/min, 150'030
I was able to get it back in seconds.

目地部がシャープな凹部となったタイル状化粧シートが
得られた。A tile-like decorative sheet with sharp concave joints was obtained.

組成１ 組成２ 組成３ 比較例として組成１のインキの代わりに下記の組５ｙ、
Ｂ、および組成Ｃのインキを使用し、実施例と同方法で
化粧シートを作成したが、シリカ系体質顔料を添加した
ほどのシャープな凹凸は得られなかった。Composition 1 Composition 2 Composition 3 As a comparative example, instead of the ink of composition 1, the following set 5y,
A decorative sheet was prepared using the inks of composition B and composition C in the same manner as in the example, but the unevenness was not as sharp as that obtained by adding the silica-based extender pigment.

組成ＣComposition C

【図面の簡単な説明】[Brief explanation of drawings]

第１図と第６図は紫外線硬化型樹脂を塗布する前、第２
図と第４図は得られた凹凸化粧材を各々示す断面図であ
る。 （１）・・・基材 （２）・・・凹部の絵柄 （３）・・・凸部の絵柄 （４）・・・上塗塗料 （５）・・・体質顔料を含むインキ又は塗料特許出願人 凸版印刷株式会社 代表者　鈴　木　相　夫 ９−Figures 1 and 6 show the second stage before applying the ultraviolet curable resin.
This figure and FIG. 4 are sectional views showing the obtained uneven decorative material, respectively. (1) Base material (2) Pattern of concave parts (3) Pattern of convex parts (4) Top coat (5) Patent application for ink or paint containing extender pigment Representative of Hitotoppan Printing Co., Ltd. Aio Suzuki 9-

Claims (1)

【特許請求の範囲】[Claims] 任意の基材の表面に、シリカ系体質顔料を１０〜５０重
量部含有するインキ又は塗料を全面に又は凹部の絵柄状
に施し、次いで凸部の表現をしたい部分に硬化性又は耐
溶剤性インキによる絵柄を印刷形成した後、過酸化物重
合触媒を含有する紫外線硬化型樹脂よりなる上塗塗料を
全面に塗布し、ラインスピード１５０〜４００ｍ／分の
速度で紫外線を照射して表面を硬化させ１次いで加熱し
て内部を硬化せしめる事を特徴とする凹凸化粧材の製造
方法。Apply an ink or paint containing 10 to 50 parts by weight of a silica-based extender pigment to the surface of any base material, either on the entire surface or in the shape of a concave pattern, and then apply curable or solvent-resistant ink to the areas where you want to express convexities. After printing and forming a pattern, a top coat made of an ultraviolet curable resin containing a peroxide polymerization catalyst is applied to the entire surface, and the surface is cured by irradiating ultraviolet rays at a line speed of 150 to 400 m/min. A method for manufacturing a textured decorative material, which comprises then heating to harden the inside.