JP2000290576A - Lithographic printing ink - Google Patents
Lithographic printing inkInfo
- Publication number
- JP2000290576A JP2000290576A JP10348799A JP10348799A JP2000290576A JP 2000290576 A JP2000290576 A JP 2000290576A JP 10348799 A JP10348799 A JP 10348799A JP 10348799 A JP10348799 A JP 10348799A JP 2000290576 A JP2000290576 A JP 2000290576A
- Authority
- JP
- Japan
- Prior art keywords
- lithographic printing
- printing ink
- general formula
- ink
- rosin
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は平版印刷用インキに
関するものであり、更に詳しくは印刷適性が良好で且つ
光沢、網点着肉性等の品質の良い印刷物を得ることがで
きる平版印刷用インキに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lithographic printing ink, and more particularly to a lithographic printing ink capable of obtaining a printed matter having good printability and high gloss and halftone dot adhesion. It is about.
【０００２】[0002]
【従来の技術】近年、印刷業界では、印刷時の省人、省
力化、自動化、高速化の要求が高まってきており、様々
な印刷条件下に於いてトラブルレスで長時間安定して高
品位な印刷物が得られる印刷用インキが望まれている。2. Description of the Related Art In recent years, in the printing industry, demands for labor saving, labor saving, automation, and high-speed printing have been increasing, and trouble-free, stable and high-quality printing has been performed under various printing conditions. There is a demand for a printing ink capable of obtaining a natural printed matter.
【０００３】特にオフ輪印刷は、枚葉印刷と比べると数
倍の印刷速度があるために、印刷機のローラー上でイン
キと湿し水が激しい乳化作用を受けて印刷適性が損なわ
れることがあった。又、印刷適性上の主な問題として
は、版非画線部へのインキの付着による地汚れ、ブラン
ケットへのインキの堆積、ローラーへのインキの堆積、
インキのローラーからの飛散等の現象があり、これらに
より印刷作業の効率を著しく劣化させることがあった。[0003] In particular, since off-press printing has a printing speed several times higher than sheet-fed printing, ink and dampening water may undergo severe emulsification on the rollers of a printing press, resulting in impaired printability. there were. In addition, the main problems in printability include background contamination due to the adhesion of ink to the non-image area of the plate, accumulation of ink on blankets, accumulation of ink on rollers,
There are phenomena such as scattering of the ink from the rollers, which may significantly reduce the efficiency of the printing operation.
【０００４】また、印刷適性上の問題は印刷物品質へも
影響を及ぼし、ベタ着肉性の不足、網点形状の不揃い、
網点の欠け、網点の太り、光沢不足等の印刷物品質上の
問題が発生することがあった。[0004] In addition, the problem of printability also affects the quality of printed matter, resulting in insufficient solid inking property, irregular dot shape,
Print quality problems such as lack of halftone dots, thickening of halftone dots, and insufficient gloss sometimes occurred.
【０００５】これらの問題に対処するために、インキ
の粘弾性を高くして凝集力を高めて版非画線部へのイン
キの拡散を防止する、顔料の精製度を高めて汚れ原因
物質の量の抑制をする、顔料の分散性を高めて流動性
を良くする、等の改良がなされてきたが、完全に問題を
解決するには至ってはいない。To cope with these problems, the viscoelasticity of the ink is increased to increase the cohesion to prevent the ink from diffusing into the non-image area of the plate. Improvements have been made, such as controlling the amount and improving the flowability by increasing the dispersibility of the pigment, but have not yet completely solved the problem.
【０００６】一方、近年大豆油を使用した印刷インキが
環境保護の関心の高まりから使用されてきており、特に
アメリカ大豆協会（ＡＳＡ）の承認を得る事ができて且
つエコマーク（日本環境協会認定）を取得した平版印刷
用インキが注目されてきている。しかしながら、大豆油
を含有する印刷インキは、石油系溶剤の一部が大豆油に
置換されている為に、一般的に通常のインキと比較する
と植物油の含有量は多くなっており、湿し水との乳化は
促進され易くなる為に地汚れ等の問題が発生する事もあ
った。On the other hand, in recent years, printing inks using soybean oil have been used due to a growing interest in environmental protection. In particular, the printing ink has been approved by the American Soybean Association (ASA) and has received the Eco Mark (certified by the Japan Environmental Association). The lithographic printing inks that have obtained (1) are attracting attention. However, printing inks containing soybean oil generally have a higher vegetable oil content than ordinary inks because some of the petroleum-based solvents are replaced with soybean oil. Since the emulsification with the above is easily promoted, problems such as background fouling may occur.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、このような
従来の技術における印刷適性上の課題を解決する事を目
的としている。すなわち長時間の印刷において、地汚れ
の発生がなく、湿し水との乳化にかかわる問題の発生も
なく良好な印刷物を得る事ができる平版印刷用インキを
提供しようというものである。SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem in printability in the prior art. That is, it is an object of the present invention to provide a lithographic printing ink which can obtain a good printed matter without causing background stains and no problem relating to emulsification with a fountain solution in long-time printing.
【０００８】[0008]
【課題を解決するための手段】本発明は、下記一般式
（Ａ）で表される化合物、下記一般式（Ｂ）で表される
化合物および下記一般式（Ｃ）で表される化合物から選
ばれる少なくとも１種のジオールを、全インキ組成物に
対して０．１〜５重量％含有することを特徴とする平版
印刷用インキに関する。 一般式（Ａ） ＣＨ3 （ＣＨ2 ）j Ｃ（ＣＨ2 ＯＨ）2 （ＣＨ2 ）k Ｃ
Ｈ3 （但し、式中、ｊ，ｋは０〜３の整数を示す。） 一般式（Ｂ） ＣＨ3 （ＣＨ2 ）l Ｃ（ＯＨ）ＨＣ（Ｒ1 ）Ｈ（ＣＨ
2 ）m ＯＨ （但し、式中、ｌ，ｍは０〜３の整数を示し、Ｒ1 はメ
チル基またはエチル基を示す。） 一般式（Ｃ） ＨＯＣＨ2 ＣＨ（Ｒ2 ）（ＣＨ2 ）n ＣＨ（Ｒ3 ）ＣＨ
2 ＯＨ （但し、式中、ｎは０〜３の整数を示し、Ｒ2 ，Ｒ3 は
独立してメチル基またはエチル基を示す。）According to the present invention, a compound represented by the following general formula (A), a compound represented by the following general formula (B) and a compound represented by the following general formula (C) are selected. A lithographic printing ink comprising 0.1 to 5% by weight of at least one diol to the total ink composition. General formula (A) CH 3 (CH 2 ) j C (CH 2 OH) 2 (CH 2 ) k C
H 3 (wherein, j and k represent integers of 0 to 3. ) General formula (B) CH 3 (CH 2 ) 1 C (OH) HC (R 1 ) H (CH
2 ) m OH (wherein, l and m each represent an integer of 0 to 3 and R 1 represents a methyl group or an ethyl group.) General formula (C) HOCH 2 CH (R 2 ) (CH 2 ) n CH (R 3 ) CH
2 OH (wherein, n represents an integer of 0 to 3, and R 2 and R 3 independently represent a methyl group or an ethyl group.)
【０００９】更に本発明は、大豆油を全インキ組成物に
対し７重量％以上含有する上記平版印刷用インキに関す
る。Further, the present invention relates to the above lithographic printing ink containing soybean oil in an amount of at least 7% by weight based on the total ink composition.
【００１０】更に本発明は、非芳香族成分からなる石油
系溶剤を溶剤とする上記平版印刷用インキに関する。[0010] The present invention further relates to the lithographic printing ink, wherein a petroleum solvent comprising a non-aromatic component is used as a solvent.
【００１１】更に本発明は、アルキルフェノールを成分
とするロジン変性フェノール樹脂を樹脂成分とする上記
平版印刷用インキに関する。Further, the present invention relates to the above lithographic printing ink containing a rosin-modified phenol resin containing an alkylphenol as a resin component.
【００１２】更に本発明は、上記平版印刷用インキを湿
し水を用いる平版印刷方式で印刷することを特徴とする
平版印刷方法。Further, the present invention provides a lithographic printing method, wherein the lithographic printing ink is printed by a lithographic printing method using dampening water.
【００１３】また本発明は、植物油として大豆油を７％
以上含有し、かつ溶剤として芳香族成分が１％以下の石
油系溶剤のみを使用してなる平版印刷用インキに対し
て、上記の（Ａ）、（Ｂ）又は（Ｃ）から選ばれるジオ
ールを０．１〜５重量％含有させる事ができる。The present invention also relates to a soybean oil containing 7% of vegetable oil.
The diol selected from the above (A), (B) or (C) is contained in a lithographic printing ink containing only the petroleum solvent containing 1% or less of an aromatic component as a solvent. 0.1 to 5% by weight can be contained.
【００１４】[0014]
【発明の実施の形態】本発明において印刷インキに含有
するジオールの量は、全印刷インキ組成物を基準として
０．１〜５重量％、好ましくは０．２〜４重量％、更に
好ましくは０．３〜２重量％であり、最も好適なのは
０．４〜１重量％の範囲内での含有量である。含有量が
上記数値の下限に満たないときは目的とする効果が得ら
れず、一方含有量が上記数値の上限を超える時は、平版
印刷用インキとしてのフローが長くなりすぎて、粘度も
低くなりすぎる為にミスチング、地汚れ、網点太り等の
問題が発生しやすくなるので好ましくない。DETAILED DESCRIPTION OF THE INVENTION In the present invention, the amount of the diol contained in the printing ink is 0.1 to 5% by weight, preferably 0.2 to 4% by weight, more preferably 0 to 5% by weight, based on the total printing ink composition. The most preferred content is in the range of 0.4 to 1% by weight. When the content is less than the lower limit of the above numerical value, the intended effect cannot be obtained.On the other hand, when the content exceeds the upper limit of the above numerical value, the flow as a lithographic printing ink is too long, and the viscosity is low. It is not preferable because problems such as misting, background soiling, and thickening of halftone dots are liable to occur because of too much.
【００１５】本発明の一般式（Ａ）〜（Ｃ）で表される
ジオールの特徴は、分子構造的に分岐鎖構造であるとこ
ろにあり、このため樹脂との相溶性が良くインキの流動
性を良好にする。またアルキル基の分岐鎖があることに
より分子が疎水的となり耐加水分解性が高く効果の安定
持続性にも優れている。The feature of the diols represented by the general formulas (A) to (C) of the present invention resides in that they have a branched structure in terms of molecular structure, and therefore have good compatibility with resin and fluidity of ink. To be good. In addition, the presence of the branched chain of the alkyl group makes the molecule hydrophobic, has high hydrolysis resistance, and is excellent in the effect stability.
【００１６】本発明の一般式（Ａ）〜（Ｃ）で表される
ジオールの具体例としては下記のものがある。２，２ジ
メチル１，３プロパンジオール、２，２ジエチル１，３
プロパンジオール、２ブチル２エチル１，３プロパンジ
オール、２エチル１，３ヘキサンジオール、２エチル
１，３ペンタンジオール、２メチル１，３ヘキサンジオ
ール、２メチル１，３ヘプタンジオール、２，４ジエチ
ル１，５ペンタンジオール、２，５ジメチル１，６ヘキ
サンジオール。上記ジオールは必要に応じて２種類以上
を組み合わせて使用してもよい。Specific examples of the diols represented by formulas (A) to (C) of the present invention include the following. 2,2 dimethyl 1,3 propanediol, 2,2 diethyl 1,3
Propanediol, 2-butyl 2-ethyl-1,3-propanediol, 2-ethyl-1,3-hexanediol, 2-ethyl-1,3-pentanediol, 2-methyl-1,3-hexanediol, 2-methyl-1,3-heptanediol, 2,4-diethyl-1 , 5 pentanediol, 2,5 dimethyl 1,6 hexanediol. The above-mentioned diols may be used in combination of two or more as needed.
【００１７】また本発明のジオールと、トリデカノー
ル、２ヘキシルオクタノール、２ヘキシルデカノール、
２オクチルデカノール等の高級アルコールとの併用して
印刷インキの流動性等を調整することもできる。Also, the diol of the present invention, tridecanol, 2 hexyl octanol, 2 hexyl decanol,
The fluidity of the printing ink can also be adjusted in combination with a higher alcohol such as 2-octyldecanol.
【００１８】尚、本発明にかかるジオールを印刷インキ
に配合する方法としては、ワニス中に溶剤の一部として
配合しても良く、インキ製造中に配合しても良い。The diol according to the present invention may be incorporated into a printing ink as a part of a solvent in a varnish or during the production of the ink.
【００１９】本発明にかかるジオールは、大豆油を一定
量以上使用する平版印刷用インキに対して所定量含有さ
せる事により、インキのタック、フロー、粘度等の流動
特性を最適な値に調整する事ができ、また湿し水と乳化
したときの粘弾性を最適に維持する事ができる。The diol according to the present invention is adjusted to an optimum value for the flow characteristics such as tackiness, flow and viscosity of the ink by adding a predetermined amount to a lithographic printing ink using soybean oil in a certain amount or more. And the viscoelasticity when emulsified with the fountain solution can be optimally maintained.
【００２０】本発明の平版印刷用インキに使用される樹
脂成分としては、一般的なロジン変性フェノール樹脂、
石油樹脂、アルキッド樹脂、エステルガム、ロジンアル
キッド等があげられる。これらの樹脂成分としてはロジ
ン変性フェノール樹脂が好ましく、特に、パラノニルフ
ェノール（ＰＮＰ）又はパラノニルフェノールとパラオ
クチルフェノール（ＰＯＰ）の混合フェノール等の炭素
数８〜１５の長鎖アルキル基置換フェノールを使用した
ものが好ましく使用できる。このようなロジン変性フェ
ノール樹脂を含有する印刷インキに対して本発明のジオ
ールを含有させる事により、乳化インキの流動特性を最
適に調整する事が可能となり、印刷適性を良好に保つこ
とができるので好ましい。The resin component used in the lithographic printing ink of the present invention includes a general rosin-modified phenol resin,
Examples include petroleum resins, alkyd resins, ester gums, rosin alkyds, and the like. As these resin components, rosin-modified phenol resins are preferable, and particularly those using long-chain alkyl group-substituted phenols having 8 to 15 carbon atoms such as paranonylphenol (PNP) or mixed phenol of paranonylphenol and paraoctylphenol (POP). Can be preferably used. By adding the diol of the present invention to a printing ink containing such a rosin-modified phenolic resin, it becomes possible to optimally adjust the flow characteristics of the emulsified ink and to maintain good printability. preferable.
【００２１】本発明における平版印刷用インキは、顔料
５〜２５重量％、樹脂ワニス４０〜８０重量％および溶
剤５〜４５重量％を含み、さらに植物油として大豆油０
〜２０重量％を含んでも良い。溶剤としては、パラフィ
ン成分、ナフテン成分等の非芳香族成分からなり、不純
物としての芳香族成分は１重量％以下であり、沸点が２
００〜４００℃のものが好ましい。The lithographic printing ink of the present invention contains 5 to 25% by weight of a pigment, 40 to 80% by weight of a resin varnish, and 5 to 45% by weight of a solvent.
-20% by weight. The solvent is composed of non-aromatic components such as a paraffin component and a naphthene component. The content of the aromatic component as impurities is 1% by weight or less, and the boiling point is 2%.
The thing of 00-400 ° C is preferred.
【００２２】本発明の平版印刷用インキに最適のロジン
変性フェノール樹脂の合成の一例を次に示す。尚、以下
において、部とは重量部、％とは重量％である。An example of the synthesis of a rosin-modified phenol resin which is optimal for the lithographic printing ink of the present invention is shown below. In the following, “parts” means “parts by weight” and “%” means “% by weight”.
【００２３】（フェノール樹脂製造例１）撹拌機、水分
離器付還流冷却器、温度計付き４つ口フラスコにパラノ
ニルフェノール１０３０部、パラホルムアルデヒド２９
０部、キシレン８００部からなる混合物を加熱溶解後、
４８％水酸化ナトリウム水溶液８０部を添加し、７０〜
８０℃で５時間反応させる。反応後６Ｎ塩酸１２５部、
水道水２００部を加えて撹拌静置し、上澄み層を取り出
し水洗して不揮発分６２％のレゾール型フェノール樹脂
のキシレン溶液約２１００部を得て、これをＡレゾール
液とした。(Production Example 1 of Phenol Resin) In a four-necked flask equipped with a stirrer, a reflux condenser equipped with a water separator, and a thermometer, 1030 parts of paranonylphenol and 29% of paraformaldehyde were placed.
0 parts, after heating and dissolving a mixture consisting of 800 parts of xylene,
80 parts of a 48% aqueous sodium hydroxide solution is added, and
React at 80 ° C for 5 hours. After the reaction, 125 parts of 6N hydrochloric acid,
200 parts of tap water was added and the mixture was stirred and allowed to stand, and the supernatant layer was taken out and washed with water to obtain about 2100 parts of a xylene solution of a resol-type phenol resin having a nonvolatile content of 62%, which was used as an A resole solution.
【００２４】（ロジン変性フェノール樹脂製造例１）撹
拌機、リービッヒ冷却管、温度計付きの４つ口フラスコ
にガムロジン６００部を仕込み、窒素ガスを吹き込みな
がら、２００℃で加熱溶解し、Ａレゾール液８９０部を
１２０〜２３０℃で反応後、グリセリン６７部を仕込
み、２５０〜２６０℃で、酸価２５以下になるまでエス
テル化して、分子量１０７，０００、白濁点４０％、樹
脂粘度１５０ポイズのロジン変性フェノール樹脂１を得
た。(Production Example 1 of Rosin-Modified Phenolic Resin) 600 parts of gum rosin was charged into a four-necked flask equipped with a stirrer, a Liebig condenser and a thermometer, and heated and dissolved at 200 ° C. while blowing nitrogen gas. After reacting 890 parts at 120 to 230 ° C, 67 parts of glycerin was charged, esterified at 250 to 260 ° C until the acid value became 25 or less, and rosin having a molecular weight of 107,000, a clouding point of 40% and a resin viscosity of 150 poise was obtained. A modified phenol resin 1 was obtained.
【００２５】白濁点は次の式で計算される。 白濁点（％）＝樹脂／｛樹脂＋溶剤（Ｘｇ）｝×１００ 但しＸは、樹脂２ｇにノルマルテトラデカンを加えて１
８０〜２００℃で加熱溶解した後に、２５℃に冷却した
時に溶液が白濁するノルマルテトラデカンの最小量であ
る。また樹脂粘度は、樹脂／アマニ油＝１／２の重量比
の混合物を１８０〜２００℃で加熱撹拌溶解して得たワ
ニスのコーンプレート型粘度計による２５℃での粘度で
ある。The cloud point is calculated by the following equation. Cloud point (%) = resin / {resin + solvent (Xg)} × 100 where X is 1 g by adding normal tetradecane to 2 g of resin.
The minimum amount of normal tetradecane at which the solution becomes cloudy when cooled to 25 ° C after heating and dissolving at 80 to 200 ° C. The resin viscosity is the viscosity at 25 ° C. of a varnish obtained by heating and stirring and dissolving a mixture having a weight ratio of resin / linseed oil = 1/2 at 180 to 200 ° C. using a cone-plate viscometer.
【００２６】本発明の平版印刷用インキの作成の方法に
ついて一例を次に記す。ロジン変性フェノール樹脂１と
大豆油、溶剤としてＡＦソルベント７（日本石油（株）
製の芳香族成分が１％以下の石油系溶剤）、ＡＬＣＨ
（川研ファインケミカル（株）製アルミニウムキレート
ゲル化剤）を所定量だけ混合、加熱、溶解してゲルワニ
スを得る。所定量の顔料、ゲルワニス、溶剤を混合し３
本ロールミルで練肉した後に、ワックス、添加剤、溶剤
等を加えて目的のタック、フロー、粘度に調整して平版
印刷用インキを得る。An example of the method of preparing the lithographic printing ink of the present invention will be described below. Rosin-modified phenolic resin 1, soybean oil, AF Solvent 7 as solvent (Nippon Oil Co., Ltd.)
Petroleum solvent containing less than 1% of aromatic component), ALCH
A predetermined amount of (aluminum chelate gelling agent manufactured by Kawaken Fine Chemical Co., Ltd.) is mixed, heated and dissolved to obtain a gel varnish. Mix a predetermined amount of pigment, gel varnish and solvent and mix
After kneading with this roll mill, a wax, an additive, a solvent and the like are added to adjust the target tack, flow and viscosity to obtain a lithographic printing ink.
【００２７】[0027]
【実施例】次に本発明を具体的に更に詳細に説明する。Next, the present invention will be described in more detail.
【００２８】（フェノール樹脂製造例２）フェノール樹
脂製造例１の工程上で、パラノニルフェノールをパラオ
クチルフェノールに変更した以外は同様の操作を行い、
不揮発分６２％のレゾール型フェノール樹脂のキシレン
溶液約２１００部を得てこれをＢレゾール液とした。(Phenol resin production example 2) In the same manner as in phenol resin production example 1, except that paranonylphenol was changed to paraoctylphenol, the same operation was performed.
About 2100 parts of a xylene solution of a resol type phenol resin having a nonvolatile content of 62% was obtained, and this was used as a B resole solution.
【００２９】（ロジン変性フェノール樹脂製造例２）ロ
ジン変性フェノール樹脂製造例１の工程上で、Ａレゾー
ル液をＢレゾール液６４５部に変更した以外は同様の操
作を行い、分子量３５，０００、白濁点４５％、樹脂粘
度９０ポイズのロジン変性フェノール樹脂２を得た。(Rosin-Modified Phenol Resin Production Example 2) The same operation was carried out except that the A resole solution was changed to 645 parts of the B resole solution in the process of Production Example 1 of rosin-modified phenol resin, and the molecular weight was 35,000 and cloudiness was observed. A rosin-modified phenolic resin 2 having a point of 45% and a resin viscosity of 90 poise was obtained.
【００３０】（ロジン変性フェノール樹脂製造例３）ロ
ジン変性フェノール樹脂製造例１の工程上で、Ａレゾー
ル液を、Ａレゾール液４５０部、Ｂレゾール液４４０部
に変更した以外は同様の操作を行い、分子量８９，００
０、白濁点４２％、樹脂粘度１２０ポイズのロジン変性
フェノール樹脂３を得た。(Rosin-Modified Phenol Resin Production Example 3) The same operation was carried out except that the A-Resole solution was changed to 450 parts of A-Resole solution and 440 parts of B-Resole solution in the process of Production Example 1 of rosin-modified phenol resin. , Molecular weight 89,00
A rosin-modified phenol resin 3 having 0, a cloudiness point of 42% and a resin viscosity of 120 poise was obtained.
【００３１】（ワニス製造例１）ロジン変性フェノール
樹脂１を４４％、大豆油１１％、ＡＬＣＨを０．８％、
ＡＦソルベント７を４４．２％として１９０℃１時間加
熱撹拌してゲルワニスＡを得た。(Varnish Production Example 1) Rosin-modified phenolic resin 1 was 44%, soybean oil was 11%, ALCH was 0.8%,
The gel varnish A was obtained by heating and stirring at 190 ° C. for 1 hour with AF Solvent 7 being 44.2%.
【００３２】（ワニス製造例２）ロジン変性フェノール
樹脂２を４７％、大豆油１１％、ＡＬＣＨを０．８％、
ＡＦソルベント７を４１．２％として１９０℃１時間加
熱撹拌してゲルワニスＢを得た。(Varnish Production Example 2) Rosin-modified phenolic resin 2 47%, soybean oil 11%, ALCH 0.8%,
Heating and stirring at 190 ° C. for 1 hour with AF Solvent 7 at 41.2% gave gel varnish B.
【００３３】（ワニス製造例３）ロジン変性フェノール
樹脂３を４６％、大豆油１１％、ＡＬＣＨを０．８％、
ＡＦソルベント７を４２．２％として１９０℃１時間加
熱撹拌してゲルワニスＣを得た。(Varnish Production Example 3) 46% of rosin-modified phenolic resin 3, 11% of soybean oil, 0.8% of ALCH,
Heating and stirring at 190 ° C. for 1 hour with AF Solvent 7 at 42.2% gave gel varnish C.
【００３４】表１の配合にて３本ロールを用いて、タッ
ク６．６になるようにインキを作成し、比較例１〜２、
実施例１〜８とした。Using three rolls having the composition shown in Table 1, inks were prepared so that the tack became 6.6.
Examples 1 to 8 were used.
【００３５】[0035]
【表１】 [Table 1]
【００３６】（印刷試験評価）実施例及び比較例のイン
キを、三菱ＢＴ２−８００ＮＥＯオフ輪印刷機にて８０
０ｒｐｍで用紙をＮＰＩコート紙６６．５ｋｇ（日本製
紙（株）製）として各インキ２万枚の印刷試験を行い、
印刷物のベタ着肉状態と地汚れの状態を比較した。湿し
水はアクワマジックＮＳ（東洋インキ製造（株）製）
１．５％の水道水を用いて行い、水巾の下限付近での印
刷状態の比較を行うために、水巾の下限値よりも２％高
い水ダイヤル値で２万枚の印刷を行った。(Evaluation of Printing Test) The inks of the examples and the comparative examples were subjected to 80 printing using a Mitsubishi BT2-800 NEO web offset press.
A print test was performed on 20,000 sheets of each ink at 0 rpm using 66.5 kg of NPI coated paper (manufactured by Nippon Paper Industries Co., Ltd.).
The solid state of the printed matter and the state of background stain were compared. The dampening solution is Akwa Magic NS (manufactured by Toyo Ink Mfg. Co., Ltd.)
In order to compare the printing state near the lower limit of the water width, printing was performed using 1.5% tap water, and 20,000 sheets were printed with a water dial value that was 2% higher than the lower limit of the water width. .
【００３７】評価結果は下記に示した。インキ ベタ着肉状態 地汚れ 光沢 比較例１ 輪郭の欠けあり 有り 普通 比較例２ 輪郭の欠けあり 有り 良 比較例３ 輪郭の欠けあり 無し 良 実施例１ 良 無し 良 実施例２ 良 無し 良 実施例３ 良 無し 良 実施例４ 良 無し 良 実施例５ 良 無し 良 実施例６ 良 無し 良 実施例７ 良 無し 良 実施例８ 良 無し 良The evaluation results are shown below. Ink solid inking state scumming glossy Comparative Example 1 contour of missing Yes Yes Average Comparative Example 2 contour missing there there yo Comparative Example 3 the contour of the missing has no good Example 1 Good None Good Example 2 Good None Good Example 3 Good No Good Good Example 4 Good No Good Good Example 5 Good No Good Good Example 6 Good No Good Good Example 7 Good No Good Good Example 8 Good No Good
【００３８】上記の通り本発明にかかる実施例１〜８の
インキは、水巾下限での印刷において、印刷物に地汚れ
の発生がなく、且つベタ部の輪郭の欠けが発生すること
もなく良好な着肉状態を保つことができた。比較例１は
何も添加剤を含まず、比較例２はトリデカノールのみを
含有し、比較例３は本発明に関わらない直鎖で炭素数６
のジオールであるがいずれも、地汚れの発生防止とベタ
部の輪郭の欠けの発生防止の両方を満足させる事はでき
ないものであった。As described above, the inks of Examples 1 to 8 according to the present invention are excellent in that the printed matter does not have background stains and does not have a lack of solid contours when printed at the lower limit of the water width. I was able to maintain a good inlaid state. Comparative Example 1 did not contain any additives, Comparative Example 2 contained only tridecanol, and Comparative Example 3 had a straight-chain and 6 carbon atoms not related to the present invention.
However, none of these diols was able to satisfy both the prevention of generation of background stains and the prevention of occurrence of chipping of the contour of a solid portion.
【００３９】[0039]
【発明の効果】本発明の平版印刷用インキは、長時間の
印刷においても地汚れの発生がなく、湿し水との乳化に
かかわる問題も発生しないで、安定した品質の印刷物を
得ることができる。また、環境対応型印刷インキである
非芳香族系溶剤や大豆油を配合したインキにおいても、
上記の安定した品質の印刷物を得ることができる。又、
アルキルフェノール、特に長鎖アルキルフェノールを成
分とするロジン変性フェノール樹脂とすることによりパ
ラフィン系溶剤に溶解可能でインキの流動特性に優れた
印刷インキ組成物とすることができ、本発明のジオール
の添加効果を高めることができる。更に、印刷インキ組
成物に本発明のジオールを適当量添加し、湿し水を用い
て平版印刷すると、版非画線部へのインキの付着による
地汚れ、ブランケットへのインキの堆積、ローラーへの
インキの堆積、インキのローラーからの飛散等の印刷適
性上の問題を減少させ等の印刷作業の効率を高めること
ができる。According to the lithographic printing ink of the present invention, it is possible to obtain stable quality printed matter without causing background stains even when printing for a long time and without causing problems relating to emulsification with fountain solution. it can. In addition, environmentally friendly printing inks that contain non-aromatic solvents and soybean oil,
It is possible to obtain a print of the above-mentioned stable quality. or,
By using a rosin-modified phenol resin containing an alkylphenol, particularly a long-chain alkylphenol as a component, a printing ink composition that is soluble in a paraffinic solvent and has excellent ink flow characteristics can be obtained. Can be enhanced. Furthermore, when the diol of the present invention is added in an appropriate amount to the printing ink composition and lithographic printing is performed using a fountain solution, background contamination due to the adhesion of the ink to the non-image area of the plate, accumulation of the ink on the blanket, and The problem of printability such as the accumulation of ink and the scattering of ink from a roller can be reduced, and the efficiency of printing operation such as can be increased.
Claims (5)
記一般式（Ｂ）で表される化合物および下記一般式
（Ｃ）で表される化合物から選ばれる少なくとも１種の
ジオールを、全インキ組成物に対して０．１〜５重量％
含有することを特徴とする平版印刷用インキ。 一般式（Ａ） ＣＨ3 （ＣＨ2 ）j Ｃ（ＣＨ2 ＯＨ）2 （ＣＨ2 ）k Ｃ
Ｈ3 （但し、式中、ｊ，ｋは０〜３の整数を示す。） 一般式（Ｂ） ＣＨ3 （ＣＨ2 ）l Ｃ（ＯＨ）ＨＣ（Ｒ1 ）Ｈ（ＣＨ
2 ）m ＯＨ （但し、式中、ｌ，ｍは０〜３の整数を示し、Ｒ1 はメ
チル基またはエチル基を示す。） 一般式（Ｃ） ＨＯＣＨ2 ＣＨ（Ｒ2 ）（ＣＨ2 ）n ＣＨ（Ｒ3 ）ＣＨ
2 ＯＨ （但し、式中、ｎは０〜３の整数を示し、Ｒ2 ，Ｒ3 は
独立してメチル基またはエチル基を示す。）1. A compound represented by the following general formula (A), a compound represented by the following general formula (B), and at least one diol selected from a compound represented by the following general formula (C): 0.1 to 5% by weight based on all ink compositions
Lithographic printing ink characterized by containing. General formula (A) CH 3 (CH 2 ) j C (CH 2 OH) 2 (CH 2 ) k C
H 3 (wherein, j and k represent integers of 0 to 3. ) General formula (B) CH 3 (CH 2 ) 1 C (OH) HC (R 1 ) H (CH
2 ) m OH (wherein, l and m each represent an integer of 0 to 3 and R 1 represents a methyl group or an ethyl group.) General formula (C) HOCH 2 CH (R 2 ) (CH 2 ) n CH (R 3 ) CH
2 OH (wherein, n represents an integer of 0 to 3, and R 2 and R 3 independently represent a methyl group or an ethyl group.)
以上含有する請求項１記載の平版印刷用インキ。2. A soybean oil comprising 7% by weight of the total ink composition.
The lithographic printing ink according to claim 1, which contains the above.
とする請求項１または２記載の平版印刷用インキ。3. The lithographic printing ink according to claim 1, wherein a petroleum solvent comprising a non-aromatic component is used as a solvent.
ジン変性フェノール樹脂を樹脂成分とする請求項１ない
し４いずれか記載の平版印刷用インキ。4. The lithographic printing ink according to claim 1, wherein a rosin-modified phenol resin containing a long-chain alkylphenol is used as a resin component.
水を用いる平版印刷方式で印刷することを特徴とする平
版印刷方法。5. A lithographic printing method, wherein the lithographic printing ink according to claim 1 is printed by a lithographic printing method using dampening water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10348799A JP4122623B2 (en) | 1999-04-12 | 1999-04-12 | Ink for lithographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10348799A JP4122623B2 (en) | 1999-04-12 | 1999-04-12 | Ink for lithographic printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000290576A true JP2000290576A (en) | 2000-10-17 |
| JP4122623B2 JP4122623B2 (en) | 2008-07-23 |
Family
ID=14355374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10348799A Expired - Lifetime JP4122623B2 (en) | 1999-04-12 | 1999-04-12 | Ink for lithographic printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4122623B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002173634A (en) * | 2000-12-06 | 2002-06-21 | The Inctec Inc | Varnish composition and printing ink |
| US6799845B2 (en) * | 2000-12-07 | 2004-10-05 | Ricoh Company, Ltd. | Recording liquid, recording cartridge, recording method, recording apparatus and recording medium |
| JP2005290079A (en) * | 2004-03-31 | 2005-10-20 | Toyo Ink Mfg Co Ltd | Printing ink composition |
| US20090078140A1 (en) * | 2007-09-26 | 2009-03-26 | Fujifilm Corporation | Fountain solution composition for lithographic printing and heat-set offset rotary printing process |
-
1999
- 1999-04-12 JP JP10348799A patent/JP4122623B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002173634A (en) * | 2000-12-06 | 2002-06-21 | The Inctec Inc | Varnish composition and printing ink |
| US6799845B2 (en) * | 2000-12-07 | 2004-10-05 | Ricoh Company, Ltd. | Recording liquid, recording cartridge, recording method, recording apparatus and recording medium |
| JP2005290079A (en) * | 2004-03-31 | 2005-10-20 | Toyo Ink Mfg Co Ltd | Printing ink composition |
| JP4581458B2 (en) * | 2004-03-31 | 2010-11-17 | 東洋インキ製造株式会社 | Printing ink composition |
| US20090078140A1 (en) * | 2007-09-26 | 2009-03-26 | Fujifilm Corporation | Fountain solution composition for lithographic printing and heat-set offset rotary printing process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4122623B2 (en) | 2008-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6243248B2 (en) | Printing ink composition | |
| JP6368548B2 (en) | Offset printing ink and printed matter | |
| JP2013144765A (en) | Offset printing ink composition | |
| JP2000290576A (en) | Lithographic printing ink | |
| JP5904534B2 (en) | Penetration drying type ink composition for offset printing | |
| JP2013100394A (en) | Varnish for printing ink and printing ink composition | |
| JP4419256B2 (en) | Lithographic printing ink | |
| JP2011068863A (en) | Penetration-drying ink composition for offset printing | |
| JP6226502B2 (en) | Gel varnish for offset printing ink, offset printing ink and printed matter | |
| JP6146904B2 (en) | Ink composition for offset printing | |
| JP3518674B2 (en) | Binder for printing ink and printing ink composition | |
| JP3003444B2 (en) | Method for improving printing characteristics of lithographic ink and composition thereof | |
| JP3301267B2 (en) | Aqueous ink composition | |
| JP2011074172A (en) | Water-based lithographic printing ink and print | |
| JP2006219571A (en) | Printing ink | |
| JP2016000826A (en) | Off-set printing ink composition and print | |
| JP4581458B2 (en) | Printing ink composition | |
| JP4067706B2 (en) | Emulsion ink composition for offset printing | |
| JP6206722B2 (en) | Offset ink composition and printed matter | |
| JP2004137442A (en) | Rosin-modified phenolic resin | |
| JP5442976B2 (en) | Water-based ink composition for offset printing | |
| JP2004331892A (en) | Printing ink composition | |
| JP2003012987A (en) | Printing ink | |
| JP2014055260A (en) | Offset printing ink and varnish for offset printing ink | |
| JPH08269382A (en) | Ink for use in water-free lithography |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060406 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20071101 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071106 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20071219 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20071225 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080204 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080408 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080421 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110516 Year of fee payment: 3 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120516 Year of fee payment: 4 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130516 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140516 Year of fee payment: 6 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |