JPH1180644A - Ink composition for waterless lithographic printing - Google Patents
Ink composition for waterless lithographic printingInfo
- Publication number
- JPH1180644A JPH1180644A JP27064097A JP27064097A JPH1180644A JP H1180644 A JPH1180644 A JP H1180644A JP 27064097 A JP27064097 A JP 27064097A JP 27064097 A JP27064097 A JP 27064097A JP H1180644 A JPH1180644 A JP H1180644A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- ink composition
- lithographic printing
- waterless lithographic
- weight
- 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
- Inks, Pencil-Leads, Or Crayons (AREA)
- Printing Methods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水無し平版印刷用
インキ組成物に関し、特に、耐地汚れ性、セット性に優
れた水無し平版印刷用インキ組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterless lithographic printing ink composition, and more particularly to a waterless lithographic printing ink composition excellent in ground stain resistance and setting property.
【０００２】[0002]
【従来の技術】従来より印刷の主流となっている平版印
刷方法では、親油性の画線部及び親水性の非画線部から
なる版に対して、インキを供給すると同時に湿し水を供
給し、水とインキの反発性を利用することによりインキ
画像を形成させている。しかし、この平版印刷方法で
は、湿し水のコントロ−ルが難しく、印刷インキの乳化
による印刷面の光沢の低下、非画線部の汚れ等の湿し水
のコントロールに起因する弊害が問題視されてきた。そ
のため、湿し水を使用しない水無し平版印刷法が種々提
案されており、なかでも非画線部をシリコーン層で形成
した版を使用し、該シリコーンとインキの反発性を利用
して画像を形勢せしめる方法が実用化されている。2. Description of the Related Art In a lithographic printing method, which has conventionally been the mainstream of printing, ink and a dampening solution are simultaneously supplied to a plate having an oleophilic image area and a hydrophilic non-image area. Then, an ink image is formed by utilizing the repulsion of water and the ink. However, in this lithographic printing method, it is difficult to control the dampening solution, and the problems caused by the control of the dampening solution such as a decrease in the gloss of the printing surface due to the emulsification of the printing ink and a stain in the non-image area are regarded as problems. It has been. For this reason, various waterless lithographic printing methods that do not use dampening water have been proposed. Among them, a plate having a non-image area formed of a silicone layer is used, and an image is formed by utilizing the repulsion of the silicone and ink. A method of making it happen has been put to practical use.
【０００３】近年、水無しオフセット輪転印刷方法にお
いては、生産性の向上のため、高速印刷が行われるよう
になってきている。該高速印刷では、パイリングが生じ
易いため、これに用いるインキには低タック／高粘度化
（適正粘度における低タック化）が求められている。水
無し平版インキでは、乳化によりタックが下げられない
ため、インキそのものの低タック化が要求され、同時に
地汚れ防止、セット性向上のために高粘度化が必要とな
る。[0003] In recent years, in the waterless rotary offset printing method, high-speed printing has been performed in order to improve productivity. In the high-speed printing, pilling is liable to occur. Therefore, low tack / high viscosity (low tack at an appropriate viscosity) is required for the ink used for this. In a waterless lithographic ink, the tack cannot be lowered by emulsification, so that a low tack of the ink itself is required, and at the same time, a high viscosity is required to prevent background stain and to improve the setting property.
【０００４】このような目的のために、樹脂を架橋剤等
で変性し、高分子量化したり、架橋密度を上げる方法が
行われている。例えば特開昭６２−１９２４７７号公報
にはポリイソシアネート化合物とロジン変性フェノール
樹脂との反応で得られた変性樹脂を、特開昭６２−２５
１８２号公報には分子内に一個以上の水酸基、カルボキ
シ基、或はエポキシ基を有するα、β−不飽和ジカルボ
ン酸誘導体とロジン変性フェノール樹脂との反応で得ら
れた変性樹脂を、また特開昭６１−１５５４７９号公報
には植物油とロジン変性フェノール樹脂との反応で得ら
れた変性樹脂を、それぞれ用いる水無し平版用インキ組
成物が開示されている。しかし、これらのインキ組成物
では、高速印刷時における印刷適正が充分に改善されて
いないのが現状である。[0004] For this purpose, a method of modifying a resin with a crosslinking agent or the like to increase the molecular weight or increase the crosslinking density has been performed. For example, Japanese Unexamined Patent Publication (Kokai) No. 62-192577 discloses a modified resin obtained by reacting a polyisocyanate compound with a rosin-modified phenol resin.
No. 182 discloses a modified resin obtained by the reaction of an α, β-unsaturated dicarboxylic acid derivative having at least one hydroxyl group, carboxy group or epoxy group in a molecule with a rosin-modified phenol resin. JP-A-61-155479 discloses a waterless lithographic ink composition using a modified resin obtained by a reaction between a vegetable oil and a rosin-modified phenol resin. However, at present, these ink compositions do not sufficiently improve printability during high-speed printing.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、耐地
汚れ性、セット性が向上し、且つ、インキの転移性、光
沢を損なわない水無し平版印刷用インキ組成物を提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an ink composition for waterless lithographic printing which has improved ground stain resistance and settability and does not impair ink transferability and gloss. is there.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、前記課題
を解決すべく研究を重ねた結果、特定のロジン変性フェ
ノール樹脂および／または石油樹脂変性フェノール樹脂
とポリブタジエンを併用することで、これらの課題を解
決できることを見出し、本発明を完成するに至った。Means for Solving the Problems The present inventors have conducted studies to solve the above-mentioned problems, and as a result, by using a specific rosin-modified phenol resin and / or a petroleum resin-modified phenol resin in combination with polybutadiene, It has been found that the above problem can be solved, and the present invention has been completed.
【０００７】即ち、本発明は、インキ組成物中に、数平
均分子量８００〜１０，０００のポリブタジエン ０．
１〜１０重量％と、重量平均分子量が８０，０００〜２
７０，０００のロジン変性フェノール樹脂および／また
は石油樹脂変性フェノール樹脂で、溶解性が、該樹脂の
５０重量％トルエン溶液１ｇに対し、２５℃の温度下で
炭素数１４〜１５のｎ−パラフィン系溶剤の滴下により
白濁し始めるのに必要な滴下量（トレランス）が３〜１
５ｍｌであるロジン変性フェノール樹脂および／または
石油樹脂変性フェノール樹脂１０〜４５重量％とを含有
することを特徴とする水無し平版印刷用インキ組成物を
提供するものである。That is, according to the present invention, a polybutadiene having a number average molecular weight of 800 to 10,000 is contained in an ink composition.
1 to 10% by weight and a weight average molecular weight of 80,000 to 2
70,000 rosin-modified phenolic resin and / or petroleum resin-modified phenolic resin having a solubility of 1-15 g of a 50% by weight toluene solution of the resin at 25 ° C. at a temperature of 25 ° C. in an n-paraffinic resin having 14 to 15 carbon atoms. The dropping amount (tolerance) required to start clouding by dropping the solvent is 3 to 1
It is an object of the present invention to provide a waterless lithographic printing ink composition containing 5 ml of a rosin-modified phenol resin and / or a petroleum resin-modified phenol resin in an amount of 10 to 45% by weight.
【０００８】特定のロジン変性フェノール樹脂及び／又
は石油樹脂変性フェノール樹脂とポリブタジエンの併用
により、インキ組成物を低タック／高粘度化することが
でき、耐地汚れ性、セット性を改善することができる。By using a specific rosin-modified phenolic resin and / or petroleum resin-modified phenolic resin in combination with polybutadiene, the ink composition can be reduced in tackiness and viscosity, and the ground stain resistance and settability can be improved. it can.
【０００９】[0009]
【発明の実施の形態】以下、本発明の水無し平版印刷用
インキ組成物を更に詳細に説明する。本発明の水無し平
版印刷用インキ組成物に使用するポリブタジエンとして
は、数平均分子量が８００〜１０，０００、好ましくは
９００〜９，０００、更に好ましくは１，０００〜８，
０００のポリブタジエンが使用できる。数平均分子量が
８００より小さい場合は耐地汚れ性、セット性が低下
し、一方１０，０００より大きい場合は印刷面の光沢が
低下する。BEST MODE FOR CARRYING OUT THE INVENTION The waterless lithographic printing ink composition of the present invention will be described in more detail below. The polybutadiene used in the waterless lithographic printing ink composition of the present invention has a number average molecular weight of 800 to 10,000, preferably 900 to 9,000, and more preferably 1,000 to 8,000.
000 polybutadienes can be used. If the number average molecular weight is less than 800, the ground stain resistance and settability will decrease, while if it is more than 10,000, the gloss of the printed surface will decrease.
【００１０】該ポリブタジエンは、水無し平版印刷用イ
ンキ組成物に対し、好ましくは０．１〜１０重量％、さ
らに好ましくは０．３〜３重量％含有させるのが良い。
ポリブタジエンの含有量が、０．１重量％未満では、耐
地汚れ性、セット性の改善効果が低く、一方１０重量％
を超えると、印刷面の光沢が低下する。The polybutadiene is preferably contained in an amount of 0.1 to 10% by weight, more preferably 0.3 to 3% by weight, based on the water-free lithographic printing ink composition.
When the content of polybutadiene is less than 0.1% by weight, the effect of improving the soil resistance and the setting property is low.
If it exceeds, the gloss of the printing surface is reduced.
【００１１】本発明の水無し平版印刷用インキ組成物に
使用するロジン変性フェノール樹脂および／または石油
樹脂変性フェノール樹脂は、重量平均分子量が８０，０
００〜２７０，０００、好ましくは１００，０００〜２
５０，０００、更に好ましくは１５０，０００〜２５
０，０００であり、且つ溶解性が、該樹脂の５０重量％
トルエン溶液１ｇに対し、２５℃の温度下で炭素数１４
〜１５のｎ−パラフィン系溶剤の滴下により白濁し始め
るのに必要な滴下量（トレランス）が３〜１５ｍｌ、好
ましくは、３〜１２ｍｌであるものである。The rosin-modified phenolic resin and / or petroleum resin-modified phenolic resin used in the waterless lithographic printing ink composition of the present invention has a weight average molecular weight of 80,0.
00 to 270,000, preferably 100,000 to 2
50,000, more preferably 150,000 to 25
000 and the solubility is 50% by weight of the resin.
14 g of carbon solution was added to 1 g of the toluene solution at a temperature of 25 ° C.
The amount of dripping (tolerance) required to start clouding due to the dripping of the n-paraffinic solvent of 3 to 15 is 3 to 15 ml, preferably 3 to 12 ml.
【００１２】重量平均分子量が８０，０００未満であ
る、或は、上記滴下量が１５ｍｌを超えるような溶解性
を有すると、耐地汚れ性、セット性が低下する。一方、
重量平均分子量が２７０，０００を超える、或は、上記
滴下量が３ｍｌ未満であるような溶解性を有すると、印
刷面の光沢が低下する。If the weight-average molecular weight is less than 80,000, or if the above-mentioned dripping amount exceeds 15 ml, the ground stain resistance and the setting property are reduced. on the other hand,
If the weight-average molecular weight exceeds 270,000, or if the above-mentioned dropping amount has a solubility of less than 3 ml, the gloss of the printed surface decreases.
【００１３】本発明に使用するロジン変性フェノール樹
脂および／または石油樹脂変性フェノール樹脂は、上記
の重量平均分子量、および溶解性を有するものであれ
ば、レゾール型フェノール樹脂とロジン類、多価アルコ
ール、一または二塩基酸、石油樹脂等を反応させて得ら
れるフェノール樹脂等公知のものを使用することがで
き、これらは単独でも２種以上を併用しても良い。The rosin-modified phenolic resin and / or petroleum resin-modified phenolic resin used in the present invention are those having the above-mentioned weight-average molecular weight and solubility, as long as they are resole-type phenolic resins and rosins, polyhydric alcohols, Known compounds such as a phenolic resin obtained by reacting a mono- or dibasic acid, a petroleum resin or the like can be used, and these may be used alone or in combination of two or more.
【００１４】上記ロジン変性フェノール樹脂および／ま
たは石油樹脂変性フェノール樹脂は、水無し平版印刷用
インキ組成物に対し、好ましくは１０〜４５重量％、さ
らに好ましくは２０〜４０重量％含有させるのが良い。
樹脂の含有量が、１０重量％未満では、耐地汚れ性、セ
ット性が低下し、一方４５重量％を超えると、印刷面の
光沢が低下する。The rosin-modified phenol resin and / or petroleum resin-modified phenol resin are preferably contained in an amount of 10 to 45% by weight, more preferably 20 to 40% by weight, based on the waterless lithographic printing ink composition. .
If the content of the resin is less than 10% by weight, the ground stain resistance and the setting property are reduced, while if it exceeds 45% by weight, the gloss of the printed surface is reduced.
【００１５】本発明の水無し平版印刷用インキ組成物
は、前記成分の他に必要に応じて、水無し平版印刷用イ
ンキ組成物に使用されている公知の顔料、上記樹脂以外
のバインダー樹脂、植物油、鉱物油等を含有させること
ができる。The waterless lithographic printing ink composition of the present invention may further comprise, if necessary, a known pigment used in the waterless lithographic printing ink composition, a binder resin other than the above resins, Vegetable oil, mineral oil and the like can be contained.
【００１６】本発明の水無し平版印刷用インキ組成物に
使用する顔料としては、一般的に用いられる無色または
有色の、無機または有機顔料が使用でき、具体的には二
酸化チタン、硫酸バリウム、炭酸カルシウム、磁性酸化
鉄等の無機顔料、アゾ顔料、レーキ顔料、フタロシアニ
ン顔料、イソインドリン顔料、アントラキノン顔料、キ
ナクリドン顔料等の有機顔料、及びカーボンブラック等
が使用できる。As the pigment used in the waterless lithographic printing ink composition of the present invention, generally used colorless or colored inorganic or organic pigments can be used, and specific examples thereof include titanium dioxide, barium sulfate and carbonate. Inorganic pigments such as calcium and magnetic iron oxide, azo pigments, lake pigments, phthalocyanine pigments, isoindoline pigments, anthraquinone pigments, organic pigments such as quinacridone pigments, and carbon black can be used.
【００１７】本発明の水無し平版印刷用インキ組成物に
使用するバインダー樹脂としては、各種アルキッド樹
脂、フェノール樹脂、石油樹脂、ロジンエステル樹脂、
ポリエステル樹脂或はそれらの変性物を、印刷適性が低
下しない範囲で使用することができる。The binder resin used in the waterless lithographic printing ink composition of the present invention includes various alkyd resins, phenol resins, petroleum resins, rosin ester resins,
The polyester resin or a modified product thereof can be used within a range where the printability is not reduced.
【００１８】本発明の水無し平版印刷用インキ組成物に
使用する植物油としては、大豆油、綿実油、アマニ油、
サフラワー油、ヒマワリ油、トウモロコシ油、カノー
ラ油、桐油、脱水ヒマシ油、米ぬか油等を使用すること
ができる。The vegetable oil used in the waterless lithographic printing ink composition of the present invention includes soybean oil, cottonseed oil, linseed oil,
Safflower oil, sunflower oil, corn oil, canola oil, tung oil, dehydrated castor oil, rice bran oil and the like can be used.
【００１９】本発明の水無し平版印刷用インキ組成物に
使用する鉱物油としては、ｎ−パラフィン系溶剤、イソ
パラフィン系溶剤、ナフテン系溶剤、芳香族系溶剤、α
−オレフィン系溶剤等が使用でき、中でも沸点が２００
〜４００℃の鉱物油が好適に使用できる。Mineral oils used in the waterless lithographic printing ink composition of the present invention include n-paraffinic solvents, isoparaffinic solvents, naphthenic solvents, aromatic solvents, α
-Olefinic solvents and the like can be used, and among them, the boiling point is 200
Mineral oil at ~ 400 ° C can be suitably used.
【００２０】さらに、本発明の水無し平版印刷用インキ
組成物には、上記成分に加えて、ドライヤー、乾燥遅延
剤、酸化防止剤、耐摩擦性向上剤等の添加剤を適宜使用
することができる。Further, in the waterless lithographic printing ink composition of the present invention, additives such as a dryer, a drying retarder, an antioxidant and a friction resistance improver may be appropriately used in addition to the above-mentioned components. it can.
【００２１】本発明の水無し平版印刷用インキ組成物に
おける各成分の好ましい範囲を表１に示す。The preferred ranges of each component in the waterless lithographic printing ink composition of the present invention are shown in Table 1.
【表１】 表１の組成において、植物油と鉱物油の合計は、３０〜
６０重量％であるのが好ましい。[Table 1] In the composition of Table 1, the total of vegetable oil and mineral oil is 30 to
Preferably it is 60% by weight.
【００２２】本発明の水無し平版印刷用インキ組成物を
製造するには、従来公知の方法が使用できる。For producing the waterless lithographic printing ink composition of the present invention, a conventionally known method can be used.
【００２３】例えば、本発明で使用する特定のロジン変
性フェノール樹脂および／または石油樹脂変性フェノー
ル樹脂と植物油と鉱物油等から構成されるインキ用ワニ
ス、顔料、鉱物油、植物油等の混合物を充分に攪拌した
後、３本ロールにて練肉を行って水無し平版印刷用イン
キベースを調整し、これに、前記インキ用ワニス、本発
明で使用する特定のポリブタジエン、植物油、鉱物油、
必要に応じてその他添加剤、必要に応じて、本発明で使
用する特定のロジン変性フェノール樹脂および／または
石油樹脂変性フェノール樹脂以外のバインダー樹脂と植
物油と鉱物油から構成されるインキ用ワニスを加えて、
３本ロールミルにて練肉を行う方法等が挙げられる。For example, a mixture of a specific rosin-modified phenolic resin and / or a petroleum resin-modified phenolic resin used in the present invention, a varnish for ink composed of vegetable oil, mineral oil, etc., a pigment, a mineral oil, a vegetable oil, etc. is sufficiently mixed. After stirring, the mixture is ground with three rolls to prepare a waterless lithographic printing ink base, and the ink varnish, the specific polybutadiene used in the present invention, vegetable oil, mineral oil,
If necessary, other additives, and if necessary, a binder resin other than the specific rosin-modified phenolic resin and / or petroleum resin-modified phenolic resin used in the present invention, and an ink varnish composed of vegetable oil and mineral oil are added. hand,
A method of kneading meat with a three-roll mill may be used.
【００２４】以下試験例、実施例を用いて、本発明の水
無し平版印刷用インキ組成物の効果をさらに詳細に説明
するが、本発明はその主旨と適用範囲を逸脱しない限
り、これらに限定されるものではない。なお、以下の記
述中において「部」は重量部を示す。Hereinafter, the effects of the waterless lithographic printing ink composition of the present invention will be described in more detail with reference to Test Examples and Examples, but the present invention is not limited thereto unless it departs from the gist and scope of application. It is not something to be done. In the following description, "parts" indicates parts by weight.
【００２５】試験例 １．試験方法 実施例１〜１４、及び比較例１〜５の水無し平版印刷用
インキ組成物について、印刷性能に関し、下記の評価を
行った。 （１） 光沢 各水無し平版印刷用インキ組成物０．１２５ｃｃ／２０
４ｃｍ2 をＲＩテスター（（株）明製作所製）にてアー
ト紙に展色した後、室温で１日放置した後、６０°−６
０°の反射率を光沢計（ 村上色彩技術研究所製、デジ
タル光沢計）により測定した。 （２） セット性 各水無し平版印刷用インキ組成物０．１ｃｃ／８０ｃｍ
2をＲＩテスター（（株）明製作 所製）にてアート紙
に展色した後、自動インキセット試験機（（株）東洋精
機製作所製）を用いて上質紙へのインキの付着度を観察
し、インキが付着しなくなるのに要する時間（時間）を
測定した。この時間が小さい方がセット性に優れる。 （３） 耐地汚れ性 版面を昇温しうるように改良した印刷機に、水無し平版
（東レ（株）製）を取り付け、各水無し平版印刷用イン
キ組成物を用いて版面を昇温しながら印刷速度２４００
枚／時で印刷し、一定のベタ濃度において印刷物に地汚
れが発生したときの版面温度を地汚れ温度（℃）として
耐地汚れ性を評価した。地汚れ温度が高い方が 耐地汚
れ性に優れる。Test Example 1. Test method For waterless lithographic printing of Examples 1 to 14 and Comparative Examples 1 to 5
The following evaluations were made of the ink composition for printing performance.
went. (1) Gloss Each waterless lithographic printing ink composition 0.125 cc / 20
4cmTwo With RI tester (manufactured by Akira Seisakusho)
After spreading on paper, leave it at room temperature for one day,
Gloss meter (Murakami Color Research Laboratory, Digital
Tal gloss meter). (2) Setability Each waterless lithographic printing ink composition 0.1 cc / 80 cm
TwoWith RI tester (Akira Manufacturing Co., Ltd.)
, And automatic ink setting tester (Toyo Seisaku Co., Ltd.)
Observation of ink adhesion to high quality paper using Kiki Seisakusho)
And the time (time) required for ink to stop adhering
It was measured. The shorter this time, the better the setability. (3) Ground stain resistance A printing press improved to raise the temperature of the printing plate
(Made by Toray Industries, Inc.)
Printing speed 2400 while heating the plate surface using the
Prints per sheet and prints at a fixed solid density.
The temperature of the plate surface when this occurs is defined as the soil temperature (° C)
The soil resistance was evaluated. The higher the soil temperature, the better the soil resistance
Excellent resilience.
【００２６】２．試験結果 （１）〜（３）の評価結果を表２に示す。2. Test results Table 2 shows the evaluation results of (1) to (3).
【表２】 表２の結果より、実施例１〜１４の水無し平版印刷用イ
ンキ組成物は、比較例１〜５に比べて、光沢、セット
性、耐地汚れ性がバランス良く優れていることが分か
る。[Table 2] From the results in Table 2, it can be seen that the water-free lithographic printing ink compositions of Examples 1 to 14 are excellent in gloss, setability, and background stain resistance in a well-balanced manner as compared with Comparative Examples 1 to 5.
【００２７】[0027]
実施例１〜１４、及び比較例１〜５ 下記の成分を用い、表３で示す配合で水無し平版印刷用
インキ組成物を得た。製造方法は、ロジン変性フェノー
ル樹脂と植物油と鉱物油からインキ用ワニスを製造し、
これと顔料、鉱物油、植物油を充分に混合攪拌した後、
３本ロールにて練肉を行って水無し平版印刷用インキベ
ースを調製し、これに、前記インキ用ワニス、ポリブタ
ジエン、植物油、鉱物油、ワックスを加えて、３本ロー
ルミルにて練肉を行う方法を用いた。 ・ポリブタジエン 数平均分子量：７００、１，０００、３，００
０、８，０００、１２，０００ ・ロジン変性フェノール樹脂：日立化成ポリマー（株）
製 重量平均分子量／トレランス： ５０，０００／１７．０、１００，０００／１４．
０、１５０，０００／１０．０ ２００，０００／９．５、２５０，０００／３．５ ＊トレランス＝樹脂の５０重量％トルエン溶液１ｇに対
し、２５℃の温度下で、ｎ−テトラデカンとｎ−ペンタ
デカンを７：３の割合で混合した混合溶剤の滴下により
白濁し始める量 ・顔料 カーミン６Ｂ：大日本インキ化学工業（株）製 ジスアゾイエロー：大日本インキ化学工業（株）製 フタロシアニンブルー：大日精化工業（株）製 カーボンブラック：三菱化学（株）製 ・ワックス ポリエチレンワックスコンパウンド：シャムロック社製 ・植物油 アマニ油 ・鉱物油 ５号ソルベント：日本石油（株）製Examples 1 to 14 and Comparative Examples 1 to 5 Waterless lithographic printing ink compositions were obtained using the following components and in the formulation shown in Table 3. The production method is to produce an ink varnish from rosin-modified phenolic resin, vegetable oil and mineral oil,
After thoroughly mixing and stirring this with pigment, mineral oil and vegetable oil,
A three-roll milling is performed to prepare a waterless lithographic printing ink base, and the varnish for ink, polybutadiene, vegetable oil, mineral oil, and wax are added thereto, and the three-roll mill is used to mill the meat. The method was used.・ Polybutadiene Number average molecular weight: 700, 1,000, 3,000
0, 8,000, 12,000 ・ Rosin-modified phenolic resin: Hitachi Chemical Polymer Co., Ltd.
Weight average molecular weight / tolerance: 50,000 / 17.0, 100,000 / 14.
0, 150,000 / 10.0 200,000 / 9.5, 250,000 / 3.5 * Tolerance = n-tetradecane and n at a temperature of 25 ° C per 1 g of a 50 wt% resin solution in toluene. -Amount of turbidity due to dropping of a mixed solvent in which pentadecane was mixed at a ratio of 7: 3. Pigment Carmine 6B: Disazo Yellow manufactured by Dainippon Ink and Chemicals, Inc. Phthalocyanine Blue manufactured by Dainippon Ink and Chemicals, Inc .: Large Nissei Chemical Industry Co., Ltd. Carbon black: Mitsubishi Chemical Co., Ltd.-Wax Polyethylene wax compound: Shamrock Co., Ltd.-Vegetable oil linseed oil-Mineral oil No. 5 Solvent: Nippon Oil Co., Ltd.
【００２８】[0028]
【表３】 [Table 3]
【００２９】[0029]
【発明の効果】本発明の水無し平版印刷用インキ組成物
は、優れた耐地汚れ性、セット性を有し、且つ、インキ
の転移性、印刷面の光沢を損なわないため、特に高速印
刷時における印刷適性に優れる。The waterless lithographic printing ink composition of the present invention has excellent background stain resistance and settability, and does not impair the ink transferability and the gloss of the printed surface. Excellent printability at the time.
フロントページの続き (72)発明者 岩瀬 孝司 大阪市西区江戸堀１丁目23番37号 サカタ インクス株式会社内 (72)発明者 中村 正剛 大阪市西区江戸堀１丁目23番37号 サカタ インクス株式会社内Continued on the front page (72) Inventor Takashi Iwase 1-23-37, Edobori, Nishi-ku, Osaka-shi Inside (72) Inventor Shogo Nakamura 1-23-37, Edobori, Nishi-ku, Osaka-shi, Sakata Inc.
Claims (1)
〜１０，０００のポリブタジエン ０．１〜１０重量％
と、重量平均分子量が８０，０００〜２７０，０００の
ロジン変性フェノール樹脂および／または石油樹脂変性
フェノール樹脂で、溶解性が、該樹脂の５０重量％トル
エン溶液１ｇに対し、２５℃の温度下で炭素数１４〜１
５のｎ−パラフィン系溶剤の滴下により白濁し始めるの
に必要な滴下量（トレランス）が３〜１５ｍｌであるロ
ジン変性フェノール樹脂および／または石油樹脂変性フ
ェノール樹脂１０〜４５重量％とを含有することを特徴
とする水無し平版印刷用インキ組成物。1. The ink composition has a number average molecular weight of 800.
0.1 to 10% by weight of polybutadiene of 10,000
And a rosin-modified phenolic resin and / or a petroleum resin-modified phenolic resin having a weight average molecular weight of 80,000 to 270,000, and a solubility of 1 g of a 50% by weight toluene solution of the resin at 25 ° C. Carbon number 14-1
5 to 10 to 45% by weight of a rosin-modified phenolic resin and / or a petroleum resin-modified phenolic resin whose dripping amount (tolerance) required to start clouding by dropping of the n-paraffinic solvent is 3 to 15 ml. A waterless lithographic printing ink composition comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27064097A JP3880020B2 (en) | 1997-09-16 | 1997-09-16 | Waterless lithographic printing ink composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27064097A JP3880020B2 (en) | 1997-09-16 | 1997-09-16 | Waterless lithographic printing ink composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1180644A true JPH1180644A (en) | 1999-03-26 |
| JP3880020B2 JP3880020B2 (en) | 2007-02-14 |
Family
ID=17488910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27064097A Expired - Fee Related JP3880020B2 (en) | 1997-09-16 | 1997-09-16 | Waterless lithographic printing ink composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3880020B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020679A1 (en) * | 2000-09-08 | 2002-03-14 | Sakata Inx Corp. | Ink composition for offset printing |
| JP2011144295A (en) * | 2010-01-15 | 2011-07-28 | Toyo Ink Sc Holdings Co Ltd | Waterless lithographic ink composition and printed product |
| US11397985B2 (en) | 2010-12-09 | 2022-07-26 | Exegy Incorporated | Method and apparatus for managing orders in financial markets |
-
1997
- 1997-09-16 JP JP27064097A patent/JP3880020B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020679A1 (en) * | 2000-09-08 | 2002-03-14 | Sakata Inx Corp. | Ink composition for offset printing |
| JP2011144295A (en) * | 2010-01-15 | 2011-07-28 | Toyo Ink Sc Holdings Co Ltd | Waterless lithographic ink composition and printed product |
| US11397985B2 (en) | 2010-12-09 | 2022-07-26 | Exegy Incorporated | Method and apparatus for managing orders in financial markets |
| US11803912B2 (en) | 2010-12-09 | 2023-10-31 | Exegy Incorporated | Method and apparatus for managing orders in financial markets |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3880020B2 (en) | 2007-02-14 |
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