JPH07310026A - Active energy setting coating composition - Google Patents
Active energy setting coating compositionInfo
- Publication number
- JPH07310026A JPH07310026A JP10565094A JP10565094A JPH07310026A JP H07310026 A JPH07310026 A JP H07310026A JP 10565094 A JP10565094 A JP 10565094A JP 10565094 A JP10565094 A JP 10565094A JP H07310026 A JPH07310026 A JP H07310026A
- Authority
- JP
- Japan
- Prior art keywords
- active energy
- urethane acrylate
- acrylate
- weight
- functional groups
- 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.)
- Granted
Links
Landscapes
- Paints Or Removers (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば書籍の表紙、梱
包箱のような紙器材、木工品、プラスチック成形体等の
表面を強化し、艶だし、防水するための活性エネルギー
線硬化型塗料組成物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active energy ray-curable paint for strengthening, glossing and waterproofing the surface of, for example, the cover of a book, paper equipment such as a packaging box, woodwork, plastic molding and the like. It relates to a composition.
【０００２】[0002]
【従来の技術】例えば本の表紙は、クラフト紙やアート
紙、コート紙などの上質紙に、オフセット印刷やグラビ
ア印刷により文字、図柄等が印刷されている。この印刷
面を強靭なものにし、艶を与えて高級感をだすために艶
だし層が設けられている。艶だし層を設ける方法には、
ポリプロピレンフィルムをラミネートする方法とニスを
塗装する方法がある。前者のポリプロピレンフィルムを
ラミネートする方法であると、その印刷物が廃棄され再
利用しようとする際に、ポリプロピレンを除去できない
ので嫌われている。2. Description of the Related Art For example, on the cover of a book, letters, patterns, etc. are printed on high-quality paper such as kraft paper, art paper, and coated paper by offset printing or gravure printing. A glossing layer is provided to make the printed surface tough and give it a glossy appearance. The method of providing the gloss layer is
There are a method of laminating polypropylene film and a method of painting varnish. The former method of laminating polypropylene film is disliked because polypropylene cannot be removed when the printed matter is discarded and is to be reused.
【０００３】最近では、後者のニスを塗装する方法が多
く採用されている。またニスを塗装する方法によれば、
高光沢度の表面にする加工が比較的容易であり、表面の
耐摩性が優れている。加工コストが比較的安いことも優
れている点の一つである。Recently, the latter method of coating a varnish has been widely adopted. According to the method of painting varnish,
It is relatively easy to make a high gloss surface, and the surface has excellent abrasion resistance. Another advantage is that the processing cost is relatively low.
【０００４】[0004]
【発明が解決しようとする課題】印刷面にニスを塗装す
る方法では、紫外線硬化型樹脂を原料としているニスを
使用することが好ましい。しかし、かかる方法であって
も下記のような解決すべき問題がある。紙の表面を紫外
線硬化型樹脂のニスで仕上げたものを折り曲げると折り
線に沿ってニスがひび割れてしまうという折り曲げ特性
に問題がある。このような折り曲げに追随し得るよう
に、可撓性を備えた紫外線硬化型樹脂を原料とするニス
を使用すると折り曲げによるひび割れは発生しないが、
基材である紙とニスとの密着性に乏しく、ニスが剥離し
やすくなってしまう。基材にアンカー剤（下塗り）を塗
布してニスの密着を良くする方法もあるが、特殊な設備
が必要で生産性が悪く、コストアップの原因となってい
た。In the method of coating a varnish on the printing surface, it is preferable to use a varnish made of an ultraviolet curable resin as a raw material. However, even this method has the following problems to be solved. There is a problem in the folding property that the varnish is cracked along the folding line when the paper whose surface is finished with the UV curable resin varnish is folded. In order to follow such bending, when a varnish made of a flexible UV curable resin as a raw material is used, cracks due to bending do not occur,
The adhesiveness between the base material paper and the varnish is poor, and the varnish is easily peeled off. There is also a method of applying an anchoring agent (undercoating) to the base material to improve the adhesion of the varnish, but this requires special equipment, resulting in poor productivity and a cost increase.
【０００５】本発明は前記の課題を解決するためなされ
たもので、折り曲げ特性に優れ、アンカー剤を使用しな
くても密着性に優れた活性エネルギー線硬化型塗料組成
物を提供するものである。The present invention has been made to solve the above-mentioned problems, and provides an active energy ray-curable coating composition having excellent bending properties and excellent adhesion without using an anchoring agent. .
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
めになされた本発明の活性エネルギー線硬化型塗料組成
物は、２以上の官能基をもつウレタンアクリレートを20
〜60重量部、官能基数が１もしくは２のアクリルモノマ
ーを80〜40重量部、および該ウレタンアクリレートと該
アクリルモノマーとの合計量100 重量部に対して２以上
の官能基をもつシリコンアクリレート 0.1〜２重量部が
含まれている。[MEANS FOR SOLVING THE PROBLEMS] The active energy ray-curable coating composition of the present invention made to achieve the above object comprises urethane acrylate having two or more functional groups.
To 60 parts by weight, 80 to 40 parts by weight of an acrylic monomer having 1 or 2 functional groups, and 0.1 to 2 parts of a silicon acrylate having two or more functional groups per 100 parts by weight of the total amount of the urethane acrylate and the acrylic monomer. 2 parts by weight are included.
【０００７】該ウレタンアクリレートは、100 重量比の
２官能ウレタンアクリレートと、6.5 〜20重量比の５官
能以上のウレタンアクリレートとの混合物からなること
が好ましい。The urethane acrylate is preferably composed of a mixture of 100 parts by weight of a bifunctional urethane acrylate and 6.5 to 20 parts by weight of a pentafunctional or higher functional urethane acrylate.
【０００８】ウレタンアクリレ−トは、イソシアネート
基をもつプレポリマーにヒドロキシ基をもつアクリレー
トを反応させたもので、例えば、ポリエーテルポリオー
ルにトリレジンジイソシアネートを付加したウレタンプ
レポリマーにヒドロキシエチルアクリレートを反応させ
ることによって造られる。Urethane acrylate is obtained by reacting a prepolymer having an isocyanate group with an acrylate having a hydroxy group. For example, a urethane prepolymer obtained by adding triresin diisocyanate to a polyether polyol is reacted with hydroxyethyl acrylate. It is made by letting.
【０００９】塗料中のウレタンアクリレートは、例えば
紫外線のような活性エネルギー線で活性化されたアクリ
ルモノマーにより架橋されて硬化した皮膜を形成するも
のであるから、２つ以上の官能基を持つことが必要であ
る。より好ましくは、２官能ウレタンアクリレート100
重量部と５官能以上のウレタンアクリレート５〜２０重
量部の混合物とする。ウレタンアクリートの官能基数が
少ないと活性エネルギー線による硬化反応が著しく遅く
なる。はなはだしい場合は、硬化せず、比較的粘度の低
い低分子量の液体成分であるアクリルモノマーがそのま
ま残存して塗装膜のベタつき、塗装膜どうしのブロッキ
ングを引き起こすことがある。５官能以上のウレタンア
クリレートが５重量部より少ないと、耐ブロッキング性
の改良効果が少なく、また２０重量部より多いと、塗装
膜の架橋密度が高くなり塗装膜の折り曲げ適性が悪くな
る。The urethane acrylate in the paint is one which has two or more functional groups because it is crosslinked with an acrylic monomer activated by active energy rays such as ultraviolet rays to form a cured film. is necessary. More preferably, bifunctional urethane acrylate 100
A mixture of 5 parts by weight and 5 to 20 parts by weight of a urethane acrylate having 5 or more functional groups is used. If the urethane acrylate has a small number of functional groups, the curing reaction due to active energy rays will be significantly delayed. In the worst case, the acrylic monomer, which is a low-molecular-weight liquid component having a relatively low viscosity, does not cure and remains as it is, which may cause stickiness of coating films and blocking between coating films. When the amount of the pentafunctional urethane acrylate is less than 5 parts by weight, the effect of improving the blocking resistance is small, and when it is more than 20 parts by weight, the crosslink density of the coating film is high, and the bending suitability of the coating film is poor.
【００１０】アクリルモノマーの官能基数は１もしくは
２が望ましい。３官能以上のアクリルモノマーを用いる
と基材と密着性は良いが、硬化した塗装膜くの架橋密度
が高くなり、ウレタンアクリレートが本来持つ柔軟性が
損なわれて塗装膜の折り曲げ適正が悪くなる。使用され
る１官能のアクリルモノマーとしては、例えば２−エチ
ルヘキシルアクリレート、フタル酸モノヒドロキシエチ
ルアクリレート、２−ヒドロキシエチルアクリレート、
２−ヒドロキシプロピルアクリレート、２−ヒドロキシ
−３−フェノキシプロピルアクリレートなどのアクリル
酸エステルが用いられるが、アクリルモノマー中に、ヒ
ドロキシル基を一つ以上有しているものが基材との密着
性から好ましい。２官能のアクリルモノマーとしては、
例えば１，３−ブタンジオールジアクリレート、１，４
−ブタンジオールジアクリレート、１，６−ヘキサンジ
オールジアクリレート、ジエチレングリコールジアクリ
レート、トリプロピレングリコールジアクリレート、ネ
オペンチルグリコールジアクリレートなどのジオールジ
アクリレートが用いられる。The number of functional groups of the acrylic monomer is preferably 1 or 2. When a trifunctional or higher-functional acrylic monomer is used, the adhesion to the substrate is good, but the crosslink density of the cured coating film is high, the flexibility inherent in urethane acrylate is impaired, and the bending suitability of the coating film is poor. Examples of the monofunctional acrylic monomer used include 2-ethylhexyl acrylate, monohydroxyethyl phthalate acrylate, 2-hydroxyethyl acrylate,
Acrylic esters such as 2-hydroxypropyl acrylate and 2-hydroxy-3-phenoxypropyl acrylate are used, but those having one or more hydroxyl groups in the acrylic monomer are preferable from the viewpoint of adhesion to the substrate. . As a bifunctional acrylic monomer,
For example, 1,3-butanediol diacrylate, 1,4
-Butanediol diacrylate, 1,6-hexanediol diacrylate, diethylene glycol diacrylate, tripropylene glycol diacrylate, neopentyl glycol diacrylate and other diol diacrylates are used.
【００１１】２以上の官能基をもつウレタンアクリレー
トと官能基数が１もしくは２以上のアクリルモノマーの
重量比は、ウレタンアクリレート／アクリルモノマー＝
20/80 〜60/40 の範囲内にあることが必要である。ウレ
タンアクリレートが６０重量部より多くなると基材との
密着性に乏しく、また硬化塗装膜の架橋密度が低いため
塗装膜硬度が弱く耐擦傷性が得られない。２０重量部よ
り少なくなると、硬化性が悪く、ベタついた塗装膜にな
る。The weight ratio of urethane acrylate having 2 or more functional groups to acrylic monomer having 1 or 2 or more functional groups is urethane acrylate / acrylic monomer =
It must be within the range of 20/80 to 60/40. When the amount of urethane acrylate is more than 60 parts by weight, the adhesion to the substrate is poor, and the cross-linking density of the cured coating film is low, so that the coating film hardness is weak and scratch resistance cannot be obtained. If the amount is less than 20 parts by weight, the curability is poor and the coating film becomes sticky.
【００１２】シリコンアクリレートは、アルコール性シ
ロキサン化合物のヒドロキシル基とアクリル酸とのエス
テル化合物で、硬化塗装膜中に０．１〜２重量部が添加
されることによって、硬化塗装膜表面に軽い離型性を付
与する。硬化塗装膜と印刷インキや紙との密着性に優れ
ていても、セロテープなどで塗膜剥離テストを行うと、
基材である紙の強度が弱いため紙の材質破壊を起こすこ
とがある。実用上、材質破壊による紙ムケを防ぐために
も硬化塗装膜表面に軽い離型性を持たせることが必要
で、硬化塗膜中にシリコンアクリレートを少なくとも
０．１重量部添加することによって達成される。離型性
を付与する添加物としては、ワックス、シリコンオイ
ル、フッ素系化合物、ステアリン酸塩などが従来から使
用されているが、これらの添加物は硬化塗装膜の表面に
経時的に移行して表面特性を変えたり、硬化塗装膜の光
沢性を低下させたり、硬化塗装膜と基材との密着性を悪
くする子とがる。本発明において使用されるシリコンア
クリレートは、活性エネルギー線により硬化性をもつア
クリレート基を有して、硬化塗装膜中で他のウレタンオ
リゴマーやアクリルモノマーと架橋結合しているため、
硬化塗装膜表面への経時的移行もなく、透明性を低下す
ることもない。シリコンアクリレートを２重量部を越え
て添加されると、表面の離型性が強くなり滑りやすくな
るため、例えば本の表紙基材として使われたときに、本
を何冊も揃えて運ぶときに荷くずれが生じて作業性が著
しく悪くなるという不都合を生じる。このようなシリコ
ンアクリレートとしては、例えばダイセル・ユーシービ
ー（株）製の商品名Ｅｂｅｃｒｙｌ３５０（シリコンジ
アクリレート）、Ｅｂｅｃｒｙｌ １３６０（シリコン
ヘキサアクリレート）がある。Silicon acrylate is an ester compound of a hydroxyl group of an alcoholic siloxane compound and acrylic acid, and by adding 0.1 to 2 parts by weight to the cured coating film, a light release on the surface of the cured coating film. Imparts sex. Even if the cured coating film is excellent in adhesion to printing ink and paper, if you perform a film peeling test with cellophane tape,
Since the strength of the base paper is weak, the material of the paper may be destroyed. In practice, it is necessary to provide the cured coating film surface with a light release property in order to prevent paper waste caused by material destruction, and it is achieved by adding at least 0.1 part by weight of silicon acrylate to the cured coating film. . The additive which imparts releasability, wax, silicone oil, fluorine-based compound, such as stearic acid salts have been used conventionally, these additives with time to migrate to the surface of the cured coating film It may change the surface characteristics, reduce the gloss of the cured coating film, or deteriorate the adhesion between the cured coating film and the substrate. Silicon acrylate used in the present invention has an acrylate group that is curable by active energy rays, and because it is crosslinked with other urethane oligomers and acrylic monomers in the cured coating film,
There is no migration to the surface of the cured coating film over time, and the transparency is not reduced. If more than 2 parts by weight of silicon acrylate is added, the surface will be more releasable and slippery, so when used as a cover material for books, for example, when carrying many books in parallel. There is an inconvenience that the work load is remarkably deteriorated due to the load collapse. Examples of such silicon acrylates include Ebecryl 350 (silicone diacrylate) and Ebecryl 1360 (silicone hexaacrylate) under the trade names of Daicel UCB Co., Ltd.
【００１３】活性エネルギー線として紫外線が用いられ
るときは、光開始剤が加えられる。加えられる光開始剤
は、公知の紫外線効果型塗料に用いられている光開始
剤、例えば、ビアセチル、アセトフェノン、ベンゾフェ
ノン、ｐ−イソプロピル−α−ヒドロキシイソブチルフ
ェノン、α−ヒドロキシイソブチルフェノン、１−ヒド
ロキシシクロヘキシルフェニルケトンなどが０．５〜５
％の範囲で使われる。また反応性を高めるための光増感
剤や、暗所安定剤などを加えることもできる。When ultraviolet rays are used as the active energy rays, a photoinitiator is added. The photoinitiator to be added is a photoinitiator used in a known ultraviolet effect type paint, for example, biacetyl, acetophenone, benzophenone, p-isopropyl-α-hydroxyisobutylphenone, α-hydroxyisobutylphenone, 1-hydroxycyclohexyl. Phenyl ketone etc. is 0.5-5
Used in the range of%. Further, a photosensitizer for enhancing the reactivity, a dark stabilizer and the like can be added.
【００１４】本発明の塗料は、この他、塗装方法に適し
た塗料粘度に下げるために、メタノール、エタノール、
イソブロピルアルコール、トルエン、酢酸エチルなどの
溶剤成分を加えることができる。つや消し塗装膜とする
ためのマット剤や着色剤、消泡材、レベリング剤などを
加えても良い。In addition to the above, the paint of the present invention contains methanol, ethanol,
Solvent components such as isopropyl alcohol, toluene, ethyl acetate can be added. A matting agent, a coloring agent, a defoaming agent, a leveling agent, etc. for forming a matte coating film may be added.
【００１５】この活性エネルギー線硬化塗料は、グラビ
アコーティング、ロールコーティング、フレキソコーテ
ィング、ワイヤーバーコーティング、カーテンコーティ
ングなどの公知の塗装方法によって基材表面に塗装され
る。塗料が溶剤によって希釈されている場合は熱風乾燥
等により溶剤を除去した後、紫外線等の活性エネルギー
線によって硬化される。乾燥、硬化後の膜厚は、好まし
くは１〜１５μｍ、より好ましくは２〜１０μｍが良
い。膜厚が薄すぎると表面光沢、耐擦傷性が劣り、厚す
ぎると硬化の際に塗装膜が収縮して基材にカールが生
じ、さらには経済性が悪くなる。The active energy ray-curable coating material is applied to the surface of the substrate by a known coating method such as gravure coating, roll coating, flexo coating, wire bar coating, curtain coating and the like. When the paint is diluted with a solvent, the solvent is removed by hot air drying or the like, and then the paint is cured by active energy rays such as ultraviolet rays. The film thickness after drying and curing is preferably 1 to 15 μm, more preferably 2 to 10 μm. If the film thickness is too thin, the surface gloss and scratch resistance will be poor, and if it is too thick, the coating film will contract during curing and curl will occur on the substrate, and further economic efficiency will deteriorate.
【００１６】[0016]
【作用】この塗料を塗布して、活性エネルギー線を照射
し、ウレタンアクリレートをアクリルモノマーにより架
橋させた塗装膜は、強靭で、かつ、柔軟性に富んだ塗装
膜が得られることから、対擦傷性に優れ、折り曲げ適正
に優れた割れない膜を得ることができる。またシリコン
アクリレートが配合されているため、得られた硬化塗装
膜の表面は適度な平滑性を持ち、枚葉加工がやりやすく
なる。[Function] A coating film obtained by coating this coating material, irradiating it with active energy rays, and crosslinking urethane acrylate with an acrylic monomer gives a coating film that is tough and highly flexible. It is possible to obtain a film that is excellent in bending property and that is not bent and is excellent in bending properness. In addition, since silicon acrylate is blended, the surface of the obtained cured coating film has appropriate smoothness, which facilitates single-wafer processing.
【００１７】[0017]
【実施例】以下、本発明の実施例を詳細に説明する。EXAMPLES Examples of the present invention will be described in detail below.
【００１８】基材である高級板紙（坪量２３０g/m2、新
王子製紙（株）製、商品名「ボンアイボリー」）に枚葉
オフセット印刷機を用いて酸化重合型インキ（大日本イ
ンキ化学工業（株）製、商品名「カルトンセルフ」）で
墨、藍、紅、黄の順に絵柄印刷を行った。Oxidation polymerization type ink (Dainippon Ink and Chemicals) was used as a base material for high-grade paperboard (basis weight: 230 g / m 2 , Shin-Oji Paper Co., Ltd., product name “Bon Ivory”) using a sheet-fed offset printing machine. Patterns were printed in the order of ink, indigo, red, and yellow with a product name "Carton Self" manufactured by Kogyo Co., Ltd.).
【００１９】表１に組成を示してある実施例１〜４、比
較例１〜５の塗料をそれぞれ調整した。これらの各塗料
を印刷済の高級板紙の印刷面にワイヤーバーコーターで
塗装した。それを熱風乾燥して溶剤を除去した後、１２
０w/cmの高圧水銀灯を照射して５m/min の照射速度で紫
外線硬化を行って塗装済試料を得た。硬化後の塗装膜厚
は、それぞれ６μｍであった。The coating compositions of Examples 1 to 4 and Comparative Examples 1 to 5 whose compositions are shown in Table 1 were prepared. Each of these paints was applied to the printed surface of a printed high-grade board by a wire bar coater. After drying it with hot air to remove the solvent, 12
A high pressure mercury lamp of 0 w / cm was irradiated and UV curing was performed at an irradiation speed of 5 m / min to obtain a coated sample. The coating film thickness after curing was 6 μm in each case.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１中の成分の内容は、下記のとおりであ
る。The contents of the components in Table 1 are as follows.
【００２２】アロニックスM-1600：東亜合成化学工業
（株）製、２官能ウレタンアクリレート フォトグレーズB3672-40: LORD Chemical Products製、
２官能ウレタンアクリレート アロニックスTO-1176: 東亜合成化学工業（株）製、５
官能以上の多官能ウレタンアクリレート EBECRLY 350: ダイセル・ユーシービー（株）製、2官能
シリコンジアクリレート ダロキュアー1173：独・Ｅ．ＭＥＲＣＫ社製、光開始剤 ２−ヒドロキシ−２−メチル−フェールプロパン−１−
オン 上記により得られた実施例１〜４、比較例１〜５の塗装
済試料につき折り曲げ適性、塗装膜密着性、耐擦傷性、
耐ブロッキング性、製本加工適性の試験をして評価を行
った。試験条件および評価基準は下記のとおりである。Aronix M-1600: Toa Gosei Chemical Industry Co., Ltd., bifunctional urethane acrylate Photoglaze B3672-40: LORD Chemical Products,
Bifunctional urethane acrylate Aronix TO-1176: Toa Gosei Chemical Industry Co., Ltd., 5
Functional polyfunctional urethane acrylate EBECRLY 350: manufactured by Daicel UCB Co., Ltd., bifunctional silicone diacrylate Darocure 1173: Germany E. MERCK, photoinitiator 2-hydroxy-2-methyl-feilpropane-1-
ON Folding suitability, coating film adhesion, scratch resistance, for the painted samples of Examples 1 to 4 and Comparative Examples 1 to 5 obtained as described above,
The blocking resistance and suitability for bookbinding were tested and evaluated. The test conditions and evaluation criteria are as follows.
【００２３】折り曲げ適性は、各実施例、比較例の塗装
済試料を所定の大きさに断裁し、自動製本機にかけてＢ
−５サイズの書籍の断ち切り表紙にして試験をした。本
の背の折り曲げ部での塗装膜割れがあるものを○、無い
ものを×として評価した。The folding suitability is determined by cutting the coated samples of the respective examples and comparative examples into a predetermined size and applying B to the automatic bookbinding machine.
The test was carried out using a cut-off cover of a -5 size book. The case where the coating film cracked at the bent portion of the spine of the book was evaluated as ◯, and the case where there was no coating film crack was evaluated as x.
【００２４】塗装膜密着性は、各実施例、比較例の塗装
済試料の塗装膜に予めカッター刃でゴバン目状の切り込
みを入れた後、印刷インキの載っている部分とインキの
載っていない部分を夫々剥離テストを行った。剥離テス
トはセロテープを塗装面に貼付けておき急激に引き剥し
たとき、塗装膜の全く剥れないものおよび紙の層間剥離
のみを生じているものを○、塗装膜とインキ面との間も
しくは塗装膜と高級板紙の表面層との間で剥離を生じた
ものを×として評価した。Regarding the coating film adhesion, after the coating film of the coated samples of each of the examples and comparative examples was previously cut with a cutter blade to make a gouge-like cut, the portion where the printing ink was placed and the ink was not placed Each part was subjected to a peel test. In the peeling test, when the cellophane tape is applied to the coated surface and then rapidly peeled off, the coating film that does not peel at all and the one that causes only interlayer peeling of the paper are ○, between the coating film and the ink surface or the coating. The case where peeling occurred between the film and the surface layer of the high-grade paperboard was evaluated as x.
【００２５】耐擦傷性はＪＩＳ Ｌ０８２３に規定され
た染色堅ろう度試験用摩擦試験機II型で行った。各実施
例、比較例の塗装済試料の印刷インキが載っていない白
紙塗装部を、白綿布の変わりに印刷インキが載っている
塗装部により荷重２００ｇで２００回往復擦り合わせ
て、塗装膜表面の状態を観察した。両方とも異常がない
ものを○、印刷インキの白紙塗工部への付着が認められ
るものを×とした。Scratch resistance was measured with a friction tester type II for dyeing fastness test specified in JIS L0823. The coated part of the coated sample of each of the examples and comparative examples, on which the printing ink is not placed, is rubbed 200 times back and forth with a load of 200 g by the coating part on which the printing ink is placed instead of the white cotton cloth. The condition was observed. In both cases, there was no abnormality, and in the case of adhesion of the printing ink to the white paper coating part, x.
【００２６】耐ブロッキング性は、各実施例、比較例の
塗装済試料の塗装面どうし（表−表）、および塗装面と
高級板紙の非塗装面（表−裏）を夫々重ね合わせたもの
を試験片とした。これらの試験片を６０℃の絶乾状態で
１kg/cm2の荷重をかけて、７２時間放置した後、重ね合
わせた面と面の間を剥して剥離状態を観察した。また同
一条件で得られている試験片を４０℃、８５％ＲＨの環
境下に、同一荷重で同一時間放置した後、面を剥して剥
離状態を観察した。抵抗なく剥れたものを○、抵抗はあ
るが材質を破壊せず剥れたものを△、剥離面に材質の破
壊が認められたものを×としている。The anti-blocking property is determined by comparing the coated surfaces of the painted samples of each of the Examples and Comparative Examples (front-back) and the coating surface and the non-coated surface of high-grade paperboard (front-back), respectively. The test piece was used. These test pieces were placed in an absolutely dry state at 60 ° C. under a load of 1 kg / cm 2 and left for 72 hours. Then, the surfaces that were overlapped were peeled off and the peeled state was observed. Further, the test pieces obtained under the same conditions were left in an environment of 40 ° C. and 85% RH under the same load for the same time, and then the surface was peeled off to observe the peeled state. Those that peeled off without resistance were evaluated as ◯, those that had resistance but did not destroy the material were evaluated as Δ, and those where destruction of the material was recognized on the peeled surface are evaluated as x.
【００２７】製本加工適性は、折り曲げ適性の説明にあ
るように、自動製本機で断ち切り表紙にする際、搬送性
等でトラブルが生じたものを×、トラブルのなかったも
のを○とした。As for the bookbinding workability, as described in the description of the folding suitability, x indicates that there was a trouble in transportability when the cut cover was cut by an automatic bookbinding machine, and x indicates that there was no trouble.
【００２８】各実施例、比較例の試験についての評価結
果を表２に示してある。Table 2 shows the evaluation results of the tests of each example and comparative example.
【００２９】[0029]
【表２】 [Table 2]
【００３０】*) 積み重ねられた書籍が、搬送中に滑っ
て荷くずれを生じた。*) Stacked books slipped during transportation, causing a load drop.
【００３１】[0031]
【発明の効果】以上、詳細に説明したように本発明を適
用した活性エネルギー線硬化型塗料組成物を基材に塗布
した塗装面は、折り曲げ特性に優れ、アンカー剤を使用
しなくても基材に対する密着性が優れている。のみなら
ず、耐擦傷性や耐ブロッキング性にも優れている。ま
た、この塗料組成物を厚紙に塗布し、本の表紙に使用す
ると自動製本の製本加工に極めて適している。As described above in detail, the coated surface coated with the active energy ray-curable coating composition to which the present invention is applied has excellent bending properties and is a base material without using an anchoring agent. Excellent adhesion to materials. Not only is it excellent in scratch resistance and blocking resistance. Further, when this coating composition is applied to a cardboard and used as a cover of a book, it is extremely suitable for bookbinding processing of automatic bookbinding.
Claims (2)
ートを20〜60重量部、官能基数が１もしくは２のアクリ
ルモノマーを80〜40重量部、および該ウレタンアクリレ
ートと該アクリルモノマーとの合計量100 重量部に対し
て２以上の官能基をもつシリコンアクリレート 0.1〜２
重量部を含む活性エネルギー線硬化型塗料組成物。1. A urethane acrylate having two or more functional groups, 20 to 60 parts by weight, 80 to 40 parts by weight of an acrylic monomer having 1 or 2 functional groups, and a total amount of the urethane acrylate and the acrylic monomer of 100. Silicon acrylate having 2 or more functional groups with respect to parts by weight 0.1 to 2
An active energy ray-curable coating composition containing parts by weight.
２官能ウレタンアクリレートと、6.5 〜20重量比の５官
能以上のウレタンアクリレートとの混合物からなること
を特徴とする請求項１に記載の活性エネルギー線硬化型
塗料組成物。2. The active energy ray according to claim 1, wherein the urethane acrylate comprises a mixture of 100 weight ratio of bifunctional urethane acrylate and 6.5 to 20 weight ratio of pentafunctional or higher functional urethane acrylate. Curable coating composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10565094A JP3403244B2 (en) | 1994-05-19 | 1994-05-19 | Active energy ray-curable coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10565094A JP3403244B2 (en) | 1994-05-19 | 1994-05-19 | Active energy ray-curable coating composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07310026A true JPH07310026A (en) | 1995-11-28 |
| JP3403244B2 JP3403244B2 (en) | 2003-05-06 |
Family
ID=14413332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10565094A Expired - Fee Related JP3403244B2 (en) | 1994-05-19 | 1994-05-19 | Active energy ray-curable coating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3403244B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063162A (en) * | 2004-08-26 | 2006-03-09 | Tsutsunaka Plast Ind Co Ltd | Ultraviolet-curing type coating material |
| JP2007270508A (en) * | 2006-03-31 | 2007-10-18 | Dainippon Printing Co Ltd | High-gloss decorative sheet and decorative laminate using the same |
| JP2007331128A (en) * | 2006-06-12 | 2007-12-27 | Riken Technos Corp | Hard coat film |
| JP2012091481A (en) * | 2010-10-29 | 2012-05-17 | Yoshino Kogyosho Co Ltd | Surface decorated synthetic resin molding |
| CN102911541A (en) * | 2012-11-01 | 2013-02-06 | 武汉羿阳科技有限公司 | Weather-proofing anti-scratch ultraviolet cured hard coating composite |
| CN114686037A (en) * | 2020-12-25 | 2022-07-01 | 东洋油墨Sc控股株式会社 | Active energy ray-curable composition, method for producing laminate, and laminate |
-
1994
- 1994-05-19 JP JP10565094A patent/JP3403244B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063162A (en) * | 2004-08-26 | 2006-03-09 | Tsutsunaka Plast Ind Co Ltd | Ultraviolet-curing type coating material |
| JP2007270508A (en) * | 2006-03-31 | 2007-10-18 | Dainippon Printing Co Ltd | High-gloss decorative sheet and decorative laminate using the same |
| JP2007331128A (en) * | 2006-06-12 | 2007-12-27 | Riken Technos Corp | Hard coat film |
| JP2012091481A (en) * | 2010-10-29 | 2012-05-17 | Yoshino Kogyosho Co Ltd | Surface decorated synthetic resin molding |
| CN102911541A (en) * | 2012-11-01 | 2013-02-06 | 武汉羿阳科技有限公司 | Weather-proofing anti-scratch ultraviolet cured hard coating composite |
| CN114686037A (en) * | 2020-12-25 | 2022-07-01 | 东洋油墨Sc控股株式会社 | Active energy ray-curable composition, method for producing laminate, and laminate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3403244B2 (en) | 2003-05-06 |
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