JPH09150493A - Melamine resin decorative laminate - Google Patents
Melamine resin decorative laminateInfo
- Publication number
- JPH09150493A JPH09150493A JP31117495A JP31117495A JPH09150493A JP H09150493 A JPH09150493 A JP H09150493A JP 31117495 A JP31117495 A JP 31117495A JP 31117495 A JP31117495 A JP 31117495A JP H09150493 A JPH09150493 A JP H09150493A
- Authority
- JP
- Japan
- Prior art keywords
- coupling agent
- melamine resin
- silane coupling
- resin varnish
- varnish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Pinball Game Machines (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、パチンコ台の天板
用として好適に使用されるメラミン樹脂化粧板に関する
ものであり、特に天板の釘打ち性が大幅に改善された化
粧板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a melamine resin decorative board suitable for use as a top board of a pachinko machine, and more particularly to a decorative board having a significantly improved nailability of the top board. is there.
【０００２】[0002]
【従来の技術】メラミン化粧板は、優れた表面硬度、耐
久性があることからパチンコ台の天板にも多く使用され
ている。通常の化粧板に使用される印刷化粧紙はグラビ
ヤ印刷により作製されていて、建材としては適当な色調
であるが、鮮明な色合いが得られにくく、パチンコ台用
として絵柄の持つイメージのリアル感に乏しい欠点があ
った。2. Description of the Related Art A melamine decorative board is often used as a top board of a pachinko machine because of its excellent surface hardness and durability. The printing decorative paper used for ordinary decorative boards is made by gravure printing and has an appropriate color tone as a building material, but it is difficult to obtain a clear color tone, making it a realistic image of the image for pachinko machines. There were poor shortcomings.
【０００３】こうしたグラビア印刷が表現しえなかった
印刷紙のイメージを向上させるために適用されるパチン
コ天板用の化粧紙は、主に、墨色、藍色、赤色、青色、
桃色の５色のインクを使用したオフセット印刷により作
製しているが、パチンコ台用天板の微妙な色のコントラ
ストを現出し、５色以外の色を発現させるために５色の
重ね塗りを行っているので、重ね塗りをした部分にメラ
ミン樹脂ワニスが浸透せず、化粧板を作製した後に基板
に貼り合わせパチンコ台天板にした場合に、実用パネル
特性として最も重要である釘打ち性において、特に釘を
打つ際に、重ね塗りをした部分でクラック不良が発生す
る。[0003] Decorative paper for pachinko tops applied to improve the image of printing paper that cannot be expressed by such gravure printing is mainly composed of black, indigo, red, blue,
It is made by offset printing using 5 pink inks, but 5 colors are overlaid to reveal the subtle color contrast of the pachinko machine top plate and to express colors other than 5 colors. Therefore, the melamine resin varnish does not penetrate into the overcoated part, and when it is used as a pachinko base top plate after it is laminated to the substrate after making a decorative plate, in the nailing property which is the most important as a practical panel property, In particular, when a nail is hit, a crack defect occurs in the part where the nail is applied.
【０００４】この不良を改善するために、塗布時のメラ
ミン樹脂ワニスの粘度を下げたり、含浸紙の乾燥程度を
やや弱くし、プレス時に紙の内部まで樹脂の含浸を進行
させる方法などがあるが、含浸を十分に行うには不十分
であり、一層の改善が望まれていた。また、メラミン樹
脂ワニスを変性して可塑化変性し、耐衝撃性を改善する
方法もあるが、含浸性の低下や表面硬度の低下、更には
透明感を損なう等の欠点があった。In order to improve this defect, there are methods such as lowering the viscosity of the melamine resin varnish at the time of application, making the impregnated paper slightly dry, and advancing the impregnation of the resin into the inside of the paper at the time of pressing. However, it is not sufficient for sufficient impregnation, and further improvement has been desired. There is also a method of modifying the melamine resin varnish by plasticizing it to improve impact resistance, but it has drawbacks such as impairing impregnation, surface hardness and impairing transparency.
【０００５】化粧紙の印刷において、オフセット印刷に
使用する版のメッシュが小さくなれば、メラミン樹脂ワ
ニスの含浸が悪くなるので、ワニスの含浸を向上させる
ために版のメッシュを大きくすることが考えられるが、
この場合図柄及び色合が鮮明に出ない不具合がある。な
お、メラミン樹脂化粧板は、順次、メラミン樹脂化粧
層、フェノール樹脂芯材層からなっている。メラミン樹
脂化粧層は上記のようにオフセット印刷により得た印刷
紙にメラミン樹脂を含浸乾燥した含浸紙である。In printing decorative paper, the smaller the mesh of the plate used for offset printing is, the worse the impregnation of the melamine resin varnish is. Therefore, it is considered that the mesh of the plate is enlarged in order to improve the impregnation of the varnish. But,
In this case, there is a problem that the design and color are not clearly displayed. The melamine resin decorative board is composed of a melamine resin decorative layer and a phenol resin core material layer in that order. The melamine resin decorative layer is an impregnated paper obtained by impregnating and drying a melamine resin on the printing paper obtained by offset printing as described above.
【０００６】[0006]
【発明が解決しようとする課題】本発明者は、化粧板の
クラック発生部位を観察して、印刷インクとメラミン樹
脂層の剥離が発生していることを確認した。そして、ク
ラックの発生は印刷インクとメラミン樹脂層との密着性
が弱いためであると推定し、密着性を改善するために鋭
意検討した結果、本発明を完成したものである。The inventor of the present invention has confirmed that the printing ink and the melamine resin layer are peeled from each other by observing the cracked portion of the decorative plate. It is presumed that the occurrence of cracks is due to the weak adhesion between the printing ink and the melamine resin layer, and as a result of intensive studies to improve the adhesion, the present invention has been completed.
【０００７】本発明は、印刷紙の色合の鮮明度を低下す
ること無く、パチンコ台用天板の釘打ち性が改善された
化粧板を提供することを目的とする。It is an object of the present invention to provide a decorative board with improved nailability of a top board for a pachinko machine, without reducing the sharpness of the hue of the printing paper.
【０００８】[0008]
【課題を解決するための手段】本発明は、化粧紙に含浸
する水溶性メラミン樹脂ワニスにアミノシラン系カップ
リング剤又はエポキシシラン系カップリング剤を含有す
ることを特徴とするメラミン樹脂化粧板に関するもので
ある。SUMMARY OF THE INVENTION The present invention relates to a melamine resin decorative board characterized in that a water-soluble melamine resin varnish impregnated into a decorative paper contains an aminosilane coupling agent or an epoxysilane coupling agent. Is.
【０００９】本発明において、所定量のメラミンとホル
マリンを反応させ水溶性メラミン樹脂ワニスを得る。メ
ラミン樹脂ワニスを得たのち、耐磨耗性を向上させるた
めに結晶性シリカ、アルミナ等を添加し塗布用ワニスを
調合するが、その際に、アミノシラン系カップリング剤
又はエポキシシラン系カップリング剤を添加し塗布用樹
脂ワニスを調合する。なお、ワニスを塗布含浸する際に
下塗りを実施するが、下塗りワニス、本含浸ワニスとも
前記カップリング剤を添加してもよく、またいずれか一
方に添加してもよいが、より効果を発現するためには両
ワニスに添加するのが好ましい。In the present invention, a predetermined amount of melamine and formalin are reacted to obtain a water-soluble melamine resin varnish. After obtaining a melamine resin varnish, crystalline silica, alumina, etc. are added to improve abrasion resistance and a coating varnish is prepared. At that time, an aminosilane coupling agent or an epoxysilane coupling agent is used. Is added to prepare a coating resin varnish. Although the undercoating is carried out when the varnish is applied and impregnated, the coupling agent may be added to both the undercoating varnish and the main impregnated varnish, or one of them may be added, but the effect is more exerted. Therefore, it is preferable to add it to both varnishes.
【００１０】化粧紙の印刷インクにはフェロシアン化第
２鉄やアトリウムアルミノシリケートなどの金属を含む
顔料が多く用いられているが、本発明において、シラン
カップリング剤はそれらとの密着性を改善する効果が大
きい考えられる。さらには、アミノシラン系カップリン
グ剤又はエポキシシラン系カップリング剤のアミノ基あ
るいはエポキシ基が、メラミン樹脂のメチロール基と反
応し、印刷インクとメラミン樹脂との密着性を向上させ
ると考えられる。In the printing ink for decorative paper, pigments containing a metal such as ferric ferrocyanide and atrium aluminosilicate are often used. In the present invention, the silane coupling agent improves the adhesion with them. The effect of doing this is considered to be great. Furthermore, it is considered that the amino group or epoxy group of the aminosilane coupling agent or the epoxysilane coupling agent reacts with the methylol group of the melamine resin to improve the adhesion between the printing ink and the melamine resin.
【００１１】パチンコ台天板用化粧板は表面の光沢仕上
げが要求されるが、重ね塗りのため、光沢ムラが発生し
やすく、この点及び釘打ち性の欠点を改善するために、
上記のようにカップリング剤の配合が効果的であるが、
カップリング剤を過剰に添加した場合にも光沢ムラが発
生することがあるので、カップリング剤の添加量は０．
５〜５．０重量部が好ましい範囲である。The decorative surface for a pachinko base top plate is required to have a glossy finish on the surface, but since it is overcoated, uneven glossiness is likely to occur, and in order to improve this point and the defect of nailing property,
As described above, it is effective to add a coupling agent,
Even if the coupling agent is excessively added, uneven gloss may occur. Therefore, the amount of the coupling agent added should be 0.
A preferred range is 5 to 5.0 parts by weight.
【００１２】[0012]
《実施例１及び２》ホルマリンとメラミンのモル比が
１．７となるように配合し、反応温度９５℃にて水混和
度が１２〜２４ｍｌ／５ｍｌとなるまで反応させ、メラ
ミン樹脂ワニスを得た。メラミン樹脂ワニス１００重量
部にチキソ性付与剤としてセルロースパウダーを２重量
部、耐磨耗性付与剤として結晶性シリカを４重量部添加
した後、エポキシシランカップリング剤としてγ−グリ
シドキシプロピルトリメトキシシラン（ＳＨ−６０４
０：東レシリコーン製）又はγ−グリシドキシプロピル
メチルエトキシシラン（ＫＢＥ−４０２：信越化学製）
をそれぞれ２重量部添加しワニスを調製した。このワニ
スを常法によりパチンコ天板用の化粧紙に塗工し化粧層
を得た。これとコア層としてのフェノール樹脂含浸紙と
を組合せ、加圧加熱することによってパチンコ台天板用
化粧板を得た。<< Examples 1 and 2 >> The melamine resin varnish was obtained by blending formalin and melamine in a molar ratio of 1.7 and reacting at a reaction temperature of 95 ° C until the water miscibility becomes 12 to 24 ml / 5 ml. It was After adding 2 parts by weight of cellulose powder as a thixotropic agent and 4 parts by weight of crystalline silica as an abrasion resistance imparting agent to 100 parts by weight of a melamine resin varnish, γ-glycidoxypropyltris as an epoxysilane coupling agent. Methoxysilane (SH-604
0: Toray Silicone) or γ-glycidoxypropylmethylethoxysilane (KBE-402: Shin-Etsu Chemical)
2 parts by weight each was added to prepare a varnish. This varnish was applied to a decorative paper for a pachinko top plate by a conventional method to obtain a decorative layer. This and a phenol resin-impregnated paper as a core layer were combined and heated under pressure to obtain a decorative board for a pachinko base.
【００１３】《実施例３及び４》実施例１において、エ
ポキシシランカップリング剤の添加量を１．０重量部と
する以外は実施例１及び２と全く同様にして、パチンコ
台天板用化粧板を得た。<< Examples 3 and 4 >> In the same manner as in Examples 1 and 2, except that the addition amount of the epoxysilane coupling agent was 1.0 part by weight, the makeup for a pachinko base plate was prepared. I got a plate.
【００１４】《実施例５》実施例１において、エポキシ
シランカップリング剤の代わりに、アミノシラン系カッ
プリング剤としてγ−（２−アミノエチル）アミノプロ
ピルトリメトキシシラン（ＳＨ−６０２０：東レシリコ
ーン製）を２．０重量部添加する以外は実施例１と全く
同様にして、パチンコ台天板用化粧板を得た。Example 5 In Example 1, instead of the epoxysilane coupling agent, γ- (2-aminoethyl) aminopropyltrimethoxysilane (SH-6020: manufactured by Toray Silicone) was used as an aminosilane coupling agent. A decorative board for a pachinko board top plate was obtained in exactly the same manner as in Example 1 except that 2.0 parts by weight of was added.
【００１５】《比較例１》実施例１において、エポキシ
シランカップリング剤の代わりに、ビニルシラン系カッ
プリング剤としてビニルトリエトキシシラン（Ａ−１５
１：日本ユニカー製）を２重量部添加する以外は実施例
１と全く同様にして、パチンコ台天板用化粧板を得た。Comparative Example 1 In Example 1, instead of the epoxysilane coupling agent, vinyltriethoxysilane (A-15) was used as a vinylsilane coupling agent.
A decorative board for a pachinko stand top plate was obtained in exactly the same manner as in Example 1 except that 2 parts by weight of (1: Nippon Unicar) was added.
【００１６】《比較例２》実施例１において、カップリ
ング剤を添加しないワニスを得、同様にしてパチンコ台
天板用化粧板を得た。Comparative Example 2 A varnish containing no coupling agent was obtained in the same manner as in Example 1, and a decorative board for a pachinko board top plate was obtained in the same manner.
【００１７】得られた各化粧板に関して、ワニス外観、
塗布紙外観、化粧板外観（いずれも目視）、釘打ち性に
ついて評価し、表１に示す結果を得た。なお、パチンコ
台天板用化粧紙はメラミン樹脂が最も含浸しにくい印刷
インクの重ね塗りをしたものを使用した。With respect to each of the obtained decorative boards, the varnish appearance,
The appearance of the coated paper, the appearance of the decorative plate (all visually observed), and the nailability were evaluated, and the results shown in Table 1 were obtained. As the decorative paper for the pachinko stand top plate, the one coated with the printing ink most difficult to be impregnated with the melamine resin was used.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】本発明のメラミン樹脂化粧板は、色合い
の鮮明さを低下させることなく、印刷の色柄をより鮮明
に際立たせ、且つ、釘打ち性についても改善されている
ので、パチンコ台天板用として極めて有用である。EFFECTS OF THE INVENTION The melamine resin decorative board of the present invention makes the color pattern of the print stand out more clearly without lowering the vividness of the color tone, and the nailability is also improved. It is extremely useful as a top plate.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｌ 61/28 ＬＮＨ Ｃ０８Ｌ 61/28 ＬＮＨ // Ｃ０８Ｋ 3:34 Ｃ０８Ｌ 61:28 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C08L 61/28 LNH C08L 61/28 LNH // C08K 3:34 C08L 61:28
Claims (3)
含浸乾燥する水溶性メラミン樹脂ワニスにアミノシラン
系カップリング剤又はエポキシシラン系カップリング剤
を含有することを特徴とするメラミン樹脂化粧板。1. A melamine resin decorative board, characterized in that a water-soluble melamine resin varnish impregnated into a decorative paper and dried contains an aminosilane coupling agent or an epoxysilane coupling agent.
ン系カップリング剤の添加量が０．５〜５．０重量部で
ある請求項１のメラミン樹脂化粧板。2. The melamine resin decorative board according to claim 1, wherein the amount of the silane coupling agent added to the water-soluble melamine resin varnish is 0.5 to 5.0 parts by weight.
１又は２記載のメラミン樹脂化粧板。3. The melamine resin decorative board according to claim 1, wherein the decorative board is for a pachinko machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31117495A JPH09150493A (en) | 1995-11-29 | 1995-11-29 | Melamine resin decorative laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31117495A JPH09150493A (en) | 1995-11-29 | 1995-11-29 | Melamine resin decorative laminate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09150493A true JPH09150493A (en) | 1997-06-10 |
Family
ID=18013983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31117495A Pending JPH09150493A (en) | 1995-11-29 | 1995-11-29 | Melamine resin decorative laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09150493A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245548A (en) * | 2006-03-16 | 2007-09-27 | Aica Kogyo Co Ltd | Decorative sheet made of thermosetting resin |
| JP2018008417A (en) * | 2016-07-13 | 2018-01-18 | イビデン株式会社 | Decorative sheet |
| CN109943017A (en) * | 2019-03-29 | 2019-06-28 | 广东榕泰实业股份有限公司 | The preparation method of granular melamine formaldehyde plastics coupling agent |
| US10703927B2 (en) | 2014-04-10 | 2020-07-07 | 3M Innovative Properties Company | Adhesion promoting and/or dust suppression coating |
| CN111778766A (en) * | 2020-07-30 | 2020-10-16 | 甄镒赫 | Calcium silicate board hot-pressing veneering melamine impregnated paper and manufacturing method thereof |
-
1995
- 1995-11-29 JP JP31117495A patent/JPH09150493A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245548A (en) * | 2006-03-16 | 2007-09-27 | Aica Kogyo Co Ltd | Decorative sheet made of thermosetting resin |
| US10703927B2 (en) | 2014-04-10 | 2020-07-07 | 3M Innovative Properties Company | Adhesion promoting and/or dust suppression coating |
| JP2018008417A (en) * | 2016-07-13 | 2018-01-18 | イビデン株式会社 | Decorative sheet |
| CN109943017A (en) * | 2019-03-29 | 2019-06-28 | 广东榕泰实业股份有限公司 | The preparation method of granular melamine formaldehyde plastics coupling agent |
| CN111778766A (en) * | 2020-07-30 | 2020-10-16 | 甄镒赫 | Calcium silicate board hot-pressing veneering melamine impregnated paper and manufacturing method thereof |
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