JPS60226576A - Dry offset printing ink - Google Patents

Dry offset printing ink

Info

Publication number
JPS60226576A
JPS60226576A JP59085016A JP8501684A JPS60226576A JP S60226576 A JPS60226576 A JP S60226576A JP 59085016 A JP59085016 A JP 59085016A JP 8501684 A JP8501684 A JP 8501684A JP S60226576 A JPS60226576 A JP S60226576A
Authority
JP
Japan
Prior art keywords
ink
offset printing
color development
dry offset
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
Application number
JP59085016A
Other languages
Japanese (ja)
Inventor
Seiji Kawashima
清治 川嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP59085016A priority Critical patent/JPS60226576A/en
Publication of JPS60226576A publication Critical patent/JPS60226576A/en
Pending legal-status Critical Current

Links

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  • Color Printing (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE:To obtain the titled ink capable of clear color development by codeveloper, also capable, at low cost, of unvisible printing with color development- spontaneous fading processes repeatedly reproducible, by incorporating a conventional dry offset printing ink with an alkaline matter and specific developer. CONSTITUTION:The objective ink can be obtained by incorporating a conventional dry offset printing ink with (A) 2-30wt% of a developer selected from phenolphthalein, o-cresolphthalein, alpha-naphtholphthalein, thymolphthalein and any mixtures thereof and (B) 0.5-30wt% of an alkaline matter. The print with said ink is either colorless or gradually becomes colorless when put to practical use, resulting in equivalent to conventional ones with extremely clear color development by the action of a codeveloper, also fading away in such a short time as to be within 10min. Incorporation of a surfactant in said ink would further improve both developability and fading characteristics.

Description

【発明の詳細な説明】 本発明はフェノールフタレインあるいは0−クレゾール
フタレイン、α−ナフトールフタレイン、チモールフタ
レインのいずれかあるいはそれらの混合物2〜30y6
とアルカリ性物質0.5〜3096含有するドライオフ
セット印刷インキに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides phenolphthalein, 0-cresol phthalein, α-naphthol phthalein, thymol phthalein, or a mixture thereof.
and a dry offset printing ink containing 0.5 to 3096 alkaline substances.

従来、印刷物は印刷後変色しない。退色しない事に重点
が向けられており、変色する印刷物に関する応用は極め
て少ない。例えば実公昭56−52063.特開昭51
−115720に見られる如く、変色する呈色剤をアル
コール、ケトン等に溶解し粘度調整後グラビア印刷にて
不可視印刷部を施した例があるが、多数回発色、自然消
色させるシステムとはなっていないこと、また一般の教
材等に実用化するには、コスト、量産性に間究し、大量
に低コストで不可視印刷を行ない、効率的学習を可能に
する全く新しい機能を有する教材、新聞、雑誌等を鄭場
に供する為の印刷インキを開発した。
Traditionally, printed materials do not change color after printing. Emphasis is placed on preventing color fading, and there are very few applications for printed materials that change color. For example, Utsuko 56-52063. Unexamined Japanese Patent Publication 1973
-115720, there is an example of dissolving a coloring agent that changes color in alcohol, ketone, etc., adjusting the viscosity, and then applying an invisible printing area by gravure printing, but this is not a system that develops color multiple times and naturally fades. In addition, in order to put it into practical use as a general teaching material, we will study the cost and mass production, perform invisible printing in large quantities at low cost, and create teaching materials and newspapers with completely new functions that enable efficient learning. , developed printing ink for providing magazines, etc. to Zhengba.

本発明のドライオフセット印刷インキの特徴は、印刷後
無色あるいは有色であっても経時消色[7、実用時には
無色となシ、該不可視印刷部を呈色助剤で作用させると
きの発色が非常に鮮明で通常の可視印刷と同等であり、
呈色助剤との組み合わせで、10分以内の短時間に消色
可能なこと、更に発色後自然消色する過程を数10回以
上くシ返し再現し得るという点にある。
The characteristics of the dry offset printing ink of the present invention are that even if it is colorless or colored after printing, it will fade over time [7] In practical use, it will not be colorless, and when the invisible printed area is treated with a coloration aid, the color development will be very low. Clear and comparable to normal visible printing,
In combination with a coloration auxiliary agent, the color can be erased within a short time of 10 minutes, and furthermore, the process of natural color fading after color development can be repeated several dozen times or more.

上記のごとき機能を印刷物に持たせる為に、発間者は現
在量も量産の良いオフセット印刷インキに呈色剤を含有
せしめる方法を開発した。又アルカリ性物質を呈色剤イ
ンキに含有せしめ、呈色剤の濃度を上昇せしめた。更に
、界面活性剤の添加等でインキの発色性、消色を向上せ
しめている。
In order to provide printed materials with the above functions, we have developed a method of incorporating a coloring agent into offset printing ink, which is currently available in mass production. Furthermore, an alkaline substance was included in the color former ink to increase the concentration of the color former. Furthermore, the color development and color erasing properties of the ink are improved by adding surfactants and the like.

本発明のインキの調合例を示すと ・ロジン変性ツーノールmRFg 45部・タービン油
 5部 ・アマニ浦 10部 ・キジロール 15部 ・エタノール 5部 ・界面活性剤 7部 ・水酸化ナトリウム 0.7部 ・酒石酸 0,3部 ・フェノールフタレイン 12部 現在印刷方法の主流はオフセy)印刷法であるが、この
方法は水の薄膜を非印写部に形成し、インキの転写を防
ぎ、印写部は水の薄膜を形成しない材料にて形成されて
いるものである。しかるに最近水の薄膜を用いず、シリ
コンゴムの薄膜にてインクを撲く方式が開発され、ドラ
イオフセット印刷方式として実用化されている。本発明
のインキでドライオフセット印刷方式を使用する利点は
通常のオフセ、ト印刷ではインキの油性を強く親水性を
数%に抑制する必要があるのに対し、ドライオンセット
印刷方式では、インキの親水性を増してもシリコンゴム
による反発力が十分維持し得る為に、呈色助剤の作用が
十分印字皮膜に浸透することで、発色の鮮明さと、くり
返し再作用頻度を高め得ることである。前記例ではイン
キビヒクルにロジン変性アルキド樹脂とロジン変性ツー
ノール樹脂を用いたが、その他、マレイン酸樹脂及びそ
の変性樹脂、フェノール樹脂、アルキド樹脂アクリル樹
脂を使用することができ、樹脂の溶剤として、キジロー
ル、ブタノール、トリオール、等の有機溶剤、マシーン
油、モーター油、タービン油等の鉱物油、キリ油、アマ
ニ油、ヒマシ油等の植物性乾性油、大豆油、サフラワー
油等の半乾 ゛性能、脱水ヒマシ油、マレイン化部など
の合性乾性油がある。また呈色助剤との作用性を改善し
、呈色剤のビヒクルへの溶解性を改善するものとして界
面活性剤を添加することができる。界面活性剤にはアル
キルエーテルカルボン酸塩、アシル化ペプチド、アルキ
ルスルホン酸塩、α−オレフィンスルホン酸塩、スルホ
コ・・り酸塩、硫酸化部、アルキル硫酸塩、アルキルエ
ーテル硫酸塩、アルキルリン酸塩、アルキルアリルエー
テルリン酸塩等の陰イオン界面活性剤、脂肪族アミン塩
、脂肪族4級アンモニウム塩ベンザルコニウム塩、ピリ
ジニウム塩、イミダゾリニウム塩等の陽イオン界面活性
剤、ポリオキシエチレンアルキルエーテルポリオキシエ
チレン2級アルコールエーテル、ポリオキシエチレンア
ルキルアミン−ルエーテル、ポリオキシエチレングリセ
リン脂肪酸エステル、ポリオキシエチレンヒマシ曲、ポ
リオキシエチレンソルビタン脂肪酸エステル、脂肪酸モ
ノグリセリド、しょ糖脂肪酸エステル、脂肪酸アルカノ
ールアミド、ポリオキシエチレン脂肪酸アミド、ポリオ
キシエチレンアルキルアミン、アルキルアミンオキサイ
ド等の非イオン票界面活什容1.ムスhは両性界面活性
剤、フッ素系界面活性剤、等があり、これらを単一ある
いは数種適宜組合わせて使用する。さらに、呈色剤と共
に呈色助剤をインキに添加することもでき、乾燥促進剤
として、オクチル酸コバルト、オフチル酸マンガン、オ
クチル酸銀その他のオクチル酸金属塩を用いることがで
きる。
An example of the formulation of the ink of the present invention is as follows: Rosin-modified Tuunol mRFg 45 parts Turbine oil 5 parts Amaniura 10 parts Kijirole 15 parts Ethanol 5 parts Surfactant 7 parts Sodium hydroxide 0.7 parts Tartaric acid 0.3 parts Phenolphthalein 12 parts Currently, the mainstream printing method is the offset printing method, but this method forms a thin film of water on the non-imprinted area to prevent ink transfer and prevent the ink from forming on the imprinted area. is made of a material that does not form a thin film of water. However, recently a method has been developed in which ink is removed using a thin film of silicone rubber without using a thin film of water, and this method has been put into practical use as a dry offset printing method. The advantage of using the dry offset printing method with the ink of the present invention is that in normal offset printing, it is necessary to make the ink oily and suppress the hydrophilicity to a few percent, whereas in the dry-on set printing method, the ink is Even if the hydrophilicity is increased, the repulsive force of the silicone rubber can be maintained sufficiently, so that the action of the coloring aid can sufficiently penetrate into the printing film, increasing the clarity of the color development and the frequency of repeated reactivation. . In the above example, a rosin-modified alkyd resin and a rosin-modified thunol resin were used as the ink vehicle, but maleic acid resin and its modified resin, phenol resin, alkyd resin, acrylic resin, etc. can also be used. , organic solvents such as butanol and triol, mineral oils such as machine oil, motor oil, and turbine oil, vegetable drying oils such as tung oil, linseed oil, and castor oil, and semi-drying properties such as soybean oil and safflower oil. , dehydrated castor oil, and synthetic drying oils such as maleated parts. A surfactant can also be added to improve the interaction with the coloring aid and the solubility of the coloring agent in the vehicle. Surfactants include alkyl ether carboxylates, acylated peptides, alkyl sulfonates, α-olefin sulfonates, sulfophosphates, sulfated moieties, alkyl sulfates, alkyl ether sulfates, and alkyl phosphates. salts, anionic surfactants such as alkyl allyl ether phosphates, aliphatic amine salts, aliphatic quaternary ammonium salts, cationic surfactants such as benzalkonium salts, pyridinium salts, imidazolinium salts, polyoxyethylene Alkyl ether polyoxyethylene secondary alcohol ether, polyoxyethylene alkylamine ether, polyoxyethylene glycerin fatty acid ester, polyoxyethylene castor ester, polyoxyethylene sorbitan fatty acid ester, fatty acid monoglyceride, sucrose fatty acid ester, fatty acid alkanolamide, poly Nonionic surfactant content such as oxyethylene fatty acid amide, polyoxyethylene alkylamine, alkylamine oxide, etc. 1. There are amphoteric surfactants, fluorine-containing surfactants, etc., which can be used singly or in combination. Furthermore, a coloring aid can be added to the ink together with the coloring agent, and cobalt octylate, manganese ophtylate, silver octylate, and other octylate metal salts can be used as the drying accelerator.

以上のような構造を有する本発明のインキは、活版印刷
、グラビア印刷に比べ、精成性、印刷速度に勝れるドラ
イオフセット印刷方式に使用できる為、コストの安い、
印字(あるいは印画)性能の良い効率の高い学習のでき
る不可視印刷部を有する教材、新聞、雑誌等の印刷部を
市場に供することができるようになった。
The ink of the present invention having the above-mentioned structure can be used in dry offset printing, which has superior refinement and printing speed compared to letterpress printing and gravure printing, so it can be used at low cost.
Printed parts of teaching materials, newspapers, magazines, etc., which have invisible printed parts with good printing (or printing) performance and which enable highly efficient learning can now be offered on the market.

特許出願人 川 嶋 清 治Patent applicant Kiyoharu Kawashima

Claims (1)

【特許請求の範囲】[Claims] フェノールフタレイン、0−クレゾールフタレイン、α
−ナフトールフタレイン、チモールフタレインのいずれ
か、あるいはそれらの混合物2〜30%とアルカリ性物
質0.5〜3096を含有するドライオンセット印刷イ
ンキ
Phenolphthalein, 0-cresolphthalein, α
- Drion set printing ink containing 2-30% of either naphtholphthalein, thymolphthalein, or a mixture thereof and an alkaline substance of 0.5-3096
JP59085016A 1984-04-25 1984-04-25 Dry offset printing ink Pending JPS60226576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59085016A JPS60226576A (en) 1984-04-25 1984-04-25 Dry offset printing ink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59085016A JPS60226576A (en) 1984-04-25 1984-04-25 Dry offset printing ink

Publications (1)

Publication Number Publication Date
JPS60226576A true JPS60226576A (en) 1985-11-11

Family

ID=13846940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59085016A Pending JPS60226576A (en) 1984-04-25 1984-04-25 Dry offset printing ink

Country Status (1)

Country Link
JP (1) JPS60226576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403903A2 (en) * 1989-06-20 1990-12-27 Kiyoharu Kawashima Print with colour-forming area
US5070066A (en) * 1986-10-08 1991-12-03 Adger Kogyo Co., Ltd. Pressure sensitive reproducing material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070066A (en) * 1986-10-08 1991-12-03 Adger Kogyo Co., Ltd. Pressure sensitive reproducing material
EP0403903A2 (en) * 1989-06-20 1990-12-27 Kiyoharu Kawashima Print with colour-forming area

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