JP2000290571A - Transparent printing ink - Google Patents
Transparent printing inkInfo
- Publication number
- JP2000290571A JP2000290571A JP10250499A JP10250499A JP2000290571A JP 2000290571 A JP2000290571 A JP 2000290571A JP 10250499 A JP10250499 A JP 10250499A JP 10250499 A JP10250499 A JP 10250499A JP 2000290571 A JP2000290571 A JP 2000290571A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- olefin oligomer
- paper
- parts
- printing ink
- 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
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、紙に透かし印刷を
施すために使用される印刷用インキに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing ink used for performing watermark printing on paper.
【０００２】[0002]
【従来の技術】従来、偽造防止などのために紙に施され
る透かし模様は、製紙工程において施されるのが一般的
である。しかし、製紙工程後において、紙に透かし模様
を印刷によって施すことも提案されている。例えば、特
公昭２５−３４５号公報においては、ボイルドした植物
油を主材とするインキを印刷して透かし模様紙を製造す
る方法が開示されている。2. Description of the Related Art Conventionally, a watermark pattern applied to paper for preventing forgery or the like is generally applied in a paper making process. However, it has also been proposed to apply a watermark pattern to the paper by printing after the papermaking process. For example, Japanese Patent Publication No. 25-345 discloses a method of manufacturing a watermarked paper by printing an ink mainly containing boiled vegetable oil.
【０００３】それにかかわらず、製紙工程後において、
紙に透かし模様を印刷することが充分に普及されていな
い現状があるが、その理由としては、透かし模様を印刷
するための従来のインキは十分な性能を兼備していない
ことにある。透かし印刷インキに求められる性能として
は、インキ自体が無色透明に近いこと、経時変化による
黄変がないこと、高速印刷適性があること、上質紙やノ
ーカーボン紙また厚さの異なる紙などにも印刷適性があ
ること、また印刷された紙に十分浸透し、しかも印刷模
様に滲みがなく、シャープな模様が得られることなどが
ある。[0003] Regardless, after the papermaking process,
There is a current situation where the printing of a watermark pattern on paper is not sufficiently widespread, but the reason is that conventional inks for printing a watermark pattern do not have sufficient performance. The performance required of watermark printing inks is that the ink itself is nearly colorless and transparent, there is no yellowing due to aging, it is suitable for high-speed printing, and it can be used for high quality paper, carbonless paper, and paper with different thickness. In some cases, it has good printability, penetrates sufficiently into printed paper, and has a printed pattern with no bleeding and a sharp pattern.
【０００４】[0004]
【発明が解決しようとする課題】したがって、本発明の
目的は、インキ自体が無色透明に近く、経時変化による
黄変なく、高速印刷適性があり、上質紙やノーカーボン
紙また厚さの異なる紙などにも印刷適性があり、また印
刷された紙に十分浸透し、しかも印刷模様に滲みがな
く、シャープな模様が得られることなどの諸性質を兼備
した透かし印刷用インキを提供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a high-quality paper or carbonless paper or a paper having a different thickness in which the ink itself is nearly colorless and transparent, has no yellowing due to aging, is suitable for high-speed printing. Another object of the present invention is to provide a watermark printing ink which has various print properties, such as being print-suitable, sufficiently penetrating printed paper, having no bleeding in a printed pattern, and obtaining a sharp pattern. .
【０００５】[0005]
【課題を解決するための手段】本発明の透かし印刷用イ
ンキには、主成分として油性を有するオレフィンオリゴ
マーが使用される。油性を有するオレフィンオリゴマー
は実質的に揮発することなく紙に浸透できるものであっ
て、その粘度は極めて高くても支障はない。オレフィン
オリゴマーは本発明のインキの主成分として使用される
ので、該インキ１００重量部当たり５０重量部以上使用
されることが必要である。好ましくは、５５〜９５重量
部の範囲で使用される。An olefin oligomer having oiliness is used as a main component in the watermark printing ink of the present invention. The olefin oligomer having oiliness can penetrate into paper without substantially volatilizing, and there is no problem even if the viscosity is extremely high. Since the olefin oligomer is used as a main component of the ink of the present invention, it must be used in an amount of 50 parts by weight or more per 100 parts by weight of the ink. Preferably, it is used in the range of 55 to 95 parts by weight.
【０００６】使用されるオレフィンオリゴマー自体が活
版印刷やドライオフセット、ウェットオフセット印刷に
適応した粘性を有している場合には、極めて少量の一般
インキ添加剤の添加のみによって本発明のインキを製造
することができる。その意味において、使用するオレフ
ィンオリゴマーの平均分子量は８００〜１５００程度で
あることが好ましい。When the olefin oligomer used has a viscosity suitable for letterpress printing, dry offset printing, and wet offset printing, the ink of the present invention is produced only by adding a very small amount of a general ink additive. be able to. In that sense, the average molecular weight of the olefin oligomer used is preferably about 800 to 1500.
【０００７】本発明におけるオレフィンオリゴマーの原
料となるオレフィンには特に限定はないが、インキの性
能が良好な点、経済的に入手し易い点などから、炭素数
３〜６のオレフィンが好ましい。その例として、プロピ
レン、ブテン、イソブテン、各種ペンテン、ヘキセン等
がある。特に、ブデン類のオレフィンが好適に使用でき
る。The olefin used as the raw material of the olefin oligomer in the present invention is not particularly limited, but an olefin having 3 to 6 carbon atoms is preferable in terms of good ink performance and economical availability. Examples include propylene, butene, isobutene, various pentenes, hexene and the like. In particular, butene olefins can be suitably used.
【０００８】また、使用するオレフィンオリゴマーに活
版印刷適応粘性を一層付与したり、ドライオフセット、
ウェットオフセット印刷その他の印刷適応性、高速印刷
適性などを付与するなどの目的で各種添加物を加えるこ
とができるが、その主なものとしては、スチレン系(共)
重合体、(メタ)アクリル酸エステル系(共)重合体、石油
樹脂、ロジン樹脂などの樹脂成分がある。また、沸点が
２００〜３００℃の範囲の鉱物油などの揮発性溶剤があ
る。In addition, the olefin oligomer to be used can be given a higher viscosity for letterpress printing, and can have a dry offset,
Various additives can be added for the purpose of imparting wet offset printing and other printing adaptability, high-speed printing suitability, etc., and the main ones are styrene (co)
There are resin components such as polymers, (meth) acrylate-based (co) polymers, petroleum resins, and rosin resins. In addition, there are volatile solvents such as mineral oil having a boiling point in the range of 200 to 300 ° C.
【０００９】これらの添加物の好ましい添加量は、オレ
フィンオリゴマー１００重量部当たり、樹脂成分は２０
重量部未満、揮発性溶剤は５〜２０重量部である。さら
にまた、必要に応じて植物油、鉱油などを添加すること
もできる。The preferred amount of these additives is 20 parts by weight of the olefin oligomer and 20 parts by weight of the resin component.
Less than 5 parts by weight, 5-20 parts by weight of volatile solvent. Furthermore, vegetable oil, mineral oil and the like can be added as needed.
【００１０】また、本発明の透かし印刷用インキの偽造
防止性を高めるために、本発明はブラックライト発光物
質をさらに含んでなることを特徴とする透かし印刷用イ
ンキを提供する。The present invention also provides a watermark printing ink characterized in that it further comprises a black light emitting substance in order to enhance the anti-counterfeiting properties of the watermark printing ink of the present invention.
【００１１】本発明の透かし印刷用インキに添加される
ブラックライト発光物質の例としては、蛍光増白剤、又
は、亜鉛、カルシウム、カドミウムなどの硫化物やケイ
酸塩などを主成分とし、これに銅、マンガン、銀などの
付活剤を加えた、青、赤、緑に発光する蛍光燐光体、及
び蛍光燐光体は用途に応じて、特定の励起波長で発光す
る燐光体などを例示することができる。また、添加され
るブラックライト発光物質の量は、インキ１００重量部
に対して、蛍光増白などは０．０１〜２重量部程、また
蛍光燐光体は５〜３５重量部であることが好ましい。Examples of the black light emitting substance to be added to the watermark printing ink of the present invention include a fluorescent whitening agent, a sulfide such as zinc, calcium and cadmium, and a silicate as a main component. Fluorescent phosphors that emit blue, red, and green light with an activator such as copper, manganese, and silver added thereto, and the fluorescent phosphors include phosphors that emit light at a specific excitation wavelength, depending on the application. be able to. The amount of the black light emitting substance to be added is preferably 0.01 to 2 parts by weight, and the fluorescent phosphor is preferably 5 to 35 parts by weight based on 100 parts by weight of the ink. .
【００１２】[0012]
【実施例】以下、本発明の実施例につて比較例を挙げて
説明する。なお、下記実施例の記載において「部」は
「重量部」を意味する。 ［実施例１］ 組成物の内容 １ ブテンオリゴマー・・・６５部 ２ 鉱物油・・・・・・・・１０部 ３ フェノール樹脂・・・・１０部 ４ 不乾性油・・・・・・・１５部EXAMPLES Examples of the present invention will be described below with reference to comparative examples. In the description of the following examples, “parts” means “parts by weight”. [Example 1] Contents of composition 1 Butene oligomer ... 65 parts 2 Mineral oil ... 10 parts 3 Phenol resin ... 10 parts 4 Non-drying oil ... 15 copies
【００１３】上記成分１、２、３、４を配合し１２０℃
にて加熱してデゾルバーにて撹拌溶解することにより透
明なインキ組成物を得た。[0013] The above components 1, 2, 3, and 4 are blended and
Then, the mixture was heated and dissolved by stirring with a dissolver to obtain a transparent ink composition.
【００１４】このインキを６０μｍの厚さの上質紙に凸
版刷法式で、１５０ｍ／分のスピードで印刷を行ったが
ミスチングもなく安定した印刷ができた。また、５ク゛ラム
／ｍ ２の量のインキを塗布することにより、滲みのない
シャープな画像をもった透明性の良好な透かし模様が印
刷できた。さらに、この印刷物を６０℃で７２時間保存
したが、変色もなく透かし効果も損なうことはなかっ
た。 ［実施例２］ 組成物の内容 １ ブテンオリゴマー・・・６５部 ２ 鉱物油・・・・・・・・１０部 ３ フェノール樹脂・・・・１０部 ４ 不乾性油・・・・・・・１５部 ５ 蛍光増白剤・・・・・０．１部This ink is projected on a high-quality paper having a thickness of 60 μm.
In the printing method, printing was performed at a speed of 150 m / min.
Stable printing was possible without misting. Also, 5 clubs
/ M 2No bleeding by applying the amount of ink
Watermark pattern with sharp image and good transparency
I was able to print. Furthermore, store this printed matter at 60 ° C for 72 hours.
However, there is no discoloration and the watermark effect is not impaired
Was. [Example 2] Contents of composition 1 Butene oligomer ... 65 parts 2 Mineral oil ... 10 parts 3 Phenol resin ... 10 parts 4 Non-drying oil ... 15 parts 5 Fluorescent whitening agent 0.1 parts
【００１５】上記成分１、２、３、４を配合し１２０℃
にて加熱してデゾルバーにて撹拌溶解することにより透
明なインキ組成物を得た。[0015] The above components 1, 2, 3, and 4 are blended and
Then, the mixture was heated and dissolved by stirring with a dissolver to obtain a transparent ink composition.
【００１６】これに、成分５を添加して撹拌溶解し、透
明なインキ組成物を得た。このインキ組成物を実施例１
と同様に、６０μｍの厚さの上質紙に凸版刷法式によ
り、５ク゛ラム／ｍ２の量のインキを塗布することにより、
滲みのないシャープな画像の透明性の良好な透かし模様
が印刷できた。Component 5 was added thereto and dissolved by stirring to obtain a transparent ink composition. This ink composition was prepared in Example 1
In the same manner as described above, by applying an ink in an amount of 5 cm / m 2 on a high quality paper having a thickness of 60 μm by the letterpress printing method,
A transparent pattern with good transparency of a sharp image without bleeding was printed.
【００１７】暗所にてブラックライト（３２５ｎｍ、３
６５ｎｍの発光波長域の光源）を照射すると、透かし部
分が蛍光発色した。 ［実施例３］ 組成物の内容 １ ブテンオリゴマー・・・５２部 ２ 鉱物油・・・・・・・・・８部 ３ フェノール樹脂・・・・・８部 ４ 不乾性油・・・・・・・１２部 ５ 蛍光燐光体・・・・・・２０部In a dark place, a black light (325 nm, 3
When irradiated with a light source having a light emission wavelength range of 65 nm, the watermark portion emitted fluorescent color. [Example 3] Contents of composition 1 Butene oligomer ... 52 parts 2 Mineral oil ... 8 parts 3 Phenol resin ... 8 parts 4 Non-drying oil ... ..12 parts 5 Fluorescent phosphor 20 parts
【００１８】上記成分１、２、３、４を配合し１２０℃
にて加熱してデゾルバーにて撹拌溶解することにより透
明なインキ組成物を得た。The above components 1, 2, 3, and 4 are blended and
Then, the mixture was heated and dissolved by stirring with a dissolver to obtain a transparent ink composition.
【００１９】これに、成分５を添加して撹拌分散し、３
ロールミルで練和しやや白色のインキ組成物を得た。こ
のインキ組成物を実施例１と同様に、６０μｍの厚さの
上質紙に凸版刷法式により、７ク゛ラム／ｍ２の量のインキ
を塗布することにより、滲みのないシャープな画像の透
明性の良好な透かし模様が印刷できた。To this, the component 5 is added and dispersed by stirring.
A slightly white ink composition was obtained by kneading with a roll mill. In the same manner as in Example 1, this ink composition was applied to a high-quality paper having a thickness of 60 μm by the letterpress printing method in an amount of 7 cubic meters / m 2 , so that sharp image transparency without bleeding was obtained. A good watermark pattern was printed.
【００２０】暗所にてブラックライト（３２５ｎｍ、３
６５ｎｍの発光波長域の光源）を照射すると、透かし部
分が蛍光発色した。 ［比較例］比較例は特公昭２５−３４５号公報に開示さ
れている次のような組成の内容とした。 １ ボイルドしたる植物油・・・亜麻仁油・・・７５部 ２ ボイルドせざる植物油・・・大豆油・・・・１０部 ３ 鉱物油・・・・・・・・・・マシン・・・・・５部 ４ 動物油・・・・・・・・・・豚油・・・・・・５部 ５ 速燥ニス・・・・・・・・・・・・・・・・・５部In a dark place, a black light (325 nm, 3
When irradiated with a light source having a light emission wavelength range of 65 nm, the watermark portion emitted fluorescent color. Comparative Example The comparative example had the following composition disclosed in Japanese Patent Publication No. 25-345. 1 Boiled vegetable oil ... linseed oil ... 75 parts 2 Boiled vegetable oil ... soybean oil ... 10 parts 3 Mineral oil ... machine ... 5 parts 4 Animal oil ······ Pork oil ··· 5 parts 5 Quick drying varnish ··· 5 parts
【００２１】このインキを６０μｍの厚さの上質紙に凸
版刷法式で、１５０ｍ／分のスピードで印刷を行った。
また、５ク゛ラム／ｍ２の量のインキを塗布して、その印刷
適性と透かし効果を評価した。さらに、この印刷物を６
０℃で７２時間保存し経時での変色と透かし効果を確認
して評価した。すなわち、評価項目として「経時での黄
変性」「透かし効果」「透明性」「画像のシャープさ」
「高速印刷適性」を挙げ、各項目について、最良＝５〜
最悪＝１の５段階評価を行った。また、前記各実施例１
〜３についても同様の評価を行ったところ、下記表に示
す結果が得られら。This ink was printed on high quality paper having a thickness of 60 μm by letterpress printing at a speed of 150 m / min.
In addition, the ink was applied in an amount of 5 cm / m 2 , and its printability and watermark effect were evaluated. In addition, this printed matter
It was stored at 0 ° C. for 72 hours, and the discoloration with time and the watermark effect were confirmed and evaluated. In other words, the evaluation items are “yellowing over time”, “watermark effect”, “transparency”, and “sharpness of image”.
"High-speed printing suitability", and for each item, best = 5-
A five-point rating of worst = 1 was performed. In addition, each of the embodiments 1
When the same evaluation was performed for the samples Nos. 1 to 3, the results shown in the following table were obtained.
【００２２】[0022]
【表１】 [Table 1]
【００２３】この表に示すように、実施例１〜３は「透
かし効果」に関しては比較例と同等であるが、これ以外
の全ての評価項目において比較例よりも優れることが判
明した。また、実施例１及び２にあっては、全ての評価
項目において“５”であった。実施例３にあっても、
「透明性」のみ“４”ではあるものの、これ以外の全て
の評価項目は“５”であった。As shown in the table, Examples 1 to 3 are equivalent to the comparative example in terms of the "watermark effect", but it is found that all the other evaluation items are superior to the comparative example. In Examples 1 and 2, all the evaluation items were "5". Even in Example 3,
Although only “transparency” was “4”, all the other evaluation items were “5”.
【００２４】[0024]
【発明の効果】以上説明したように本発明の透かし印刷
用インキは、インキ自体が無色透明に近く、経時変化に
よる黄変なく、高速印刷適性があり、上質紙やノーカー
ボン紙また厚さの異なる紙などにも印刷適性があり、ま
た印刷された紙に十分浸透し、しかも印刷模様に滲みが
なく、シャープな模様が得られることなどの諸性質を有
する。よって、本発明により、これら透かし印刷インキ
に求められる性能を全て兼備したインキを提供すること
ができ、製紙工程後において、紙に透かし模様を印刷す
ることを普及させることが可能となる。As described above, the watermark printing ink of the present invention is close to colorless and transparent, has no yellowing due to aging, is suitable for high-speed printing, and has good quality paper and carbonless paper and thickness. It is suitable for printing on different papers, and has various properties such as being sufficiently penetrated into the printed paper, and having no bleeding in the printed pattern and providing a sharp pattern. Therefore, according to the present invention, it is possible to provide an ink having all of the performances required of these watermark printing inks, and it is possible to spread the use of printing a watermark pattern on paper after the paper making process.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H113 AA03 BA01 BB02 BB22 BC00 CA34 CA39 DA60 EA13 4J039 AB08 AD01 AD03 AD09 AD10 AD18 BA18 BA22 BA30 BA31 BA39 BE01 BE12 BE33 CA07 EA27 EA28 EA42 EA47 GA01 GA02 GA13 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H113 AA03 BA01 BB02 BB22 BC00 CA34 CA39 DA60 EA13 4J039 AB08 AD01 AD03 AD09 AD10 AD18 BA18 BA22 BA30 BA31 BA39 BE01 BE12 BE33 CA07 EA27 EA28 EA42 EA47 GA01 GA02 GA13
Claims (7)
成分とし且つ活版印刷、オフセット印刷適応粘性を有す
ることを特徴とする透かし印刷用インキ。1. An ink for watermark printing comprising an oily olefin oligomer as a main component and a viscosity suitable for letterpress printing and offset printing.
００〜１５００であることを特徴とする請求項１記載の
透かし印刷用インキ。2. An olefin oligomer having an average molecular weight of 8
2. The watermark printing ink according to claim 1, wherein the number is from 00 to 1500.
オレフィンのオリゴマーであることを特徴とする請求項
１又は２記載の透かし印刷用インキ。3. The watermark printing ink according to claim 1, wherein the olefin oligomer is an oligomer of an olefin having 3 to 6 carbon atoms.
ーであることを特徴とする請求項３記載の透かし印刷用
インキ。4. The watermark printing ink according to claim 3, wherein the olefin oligomer is a butene oligomer.
り、２０重量部未満の樹脂成分を含んでなることことを
特徴とする請求項１から４にいずれか記載の透かし印刷
用インキ。5. The watermark printing ink according to claim 1, wherein the ink contains less than 20 parts by weight of a resin component per 100 parts by weight of the olefin oligomer.
り、５〜２０重量部の揮発性溶剤を含んでなることこと
を特徴とする請求項１から５にいずれか記載の透かし印
刷用インキ。6. The watermark printing ink according to claim 1, comprising 5 to 20 parts by weight of a volatile solvent per 100 parts by weight of the olefin oligomer.
なることを特徴とする請求項１から６にいずれか記載の
透かし印刷用インキ。7. The watermark printing ink according to claim 1, further comprising a black light emitting substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10250499A JP2000290571A (en) | 1999-04-09 | 1999-04-09 | Transparent printing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10250499A JP2000290571A (en) | 1999-04-09 | 1999-04-09 | Transparent printing ink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000290571A true JP2000290571A (en) | 2000-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10250499A Pending JP2000290571A (en) | 1999-04-09 | 1999-04-09 | Transparent printing ink |
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| Country | Link |
|---|---|
| JP (1) | JP2000290571A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004411A1 (en) * | 2005-06-30 | 2007-01-11 | Canon Kabushiki Kaisha | Image processing apparatus and method controlling the amount of transparent ink for recording |
| JP2013241008A (en) * | 2012-05-17 | 2013-12-05 | Xerox Corp | Fluorescent security enabled ink for digital offset printing application |
| WO2021131414A1 (en) | 2019-12-26 | 2021-07-01 | 凸版印刷株式会社 | Display body and display method |
-
1999
- 1999-04-09 JP JP10250499A patent/JP2000290571A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004411A1 (en) * | 2005-06-30 | 2007-01-11 | Canon Kabushiki Kaisha | Image processing apparatus and method controlling the amount of transparent ink for recording |
| US7940425B2 (en) | 2005-06-30 | 2011-05-10 | Canon Kabushiki Kaisha | Image processing apparatus and method controlling the amount of transparent ink for recording |
| US8031371B2 (en) | 2005-06-30 | 2011-10-04 | Canon Kabushiki Kaisha | Image processing apparatus and method controlling the amount of transparent ink for recording |
| JP2013241008A (en) * | 2012-05-17 | 2013-12-05 | Xerox Corp | Fluorescent security enabled ink for digital offset printing application |
| WO2021131414A1 (en) | 2019-12-26 | 2021-07-01 | 凸版印刷株式会社 | Display body and display method |
| CN114901485A (en) * | 2019-12-26 | 2022-08-12 | 凸版印刷株式会社 | Display body and display method |
| KR20220119636A (en) | 2019-12-26 | 2022-08-30 | 도판 인사츠 가부시키가이샤 | Display body and display method |
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