JP3008724B2 - Ink for stencil printing - Google Patents
Ink for stencil printingInfo
- Publication number
- JP3008724B2 JP3008724B2 JP8289693A JP8289693A JP3008724B2 JP 3008724 B2 JP3008724 B2 JP 3008724B2 JP 8289693 A JP8289693 A JP 8289693A JP 8289693 A JP8289693 A JP 8289693A JP 3008724 B2 JP3008724 B2 JP 3008724B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pigment
- weight
- ink
- group
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/023—Emulsion inks
- C09D11/0235—Duplicating inks, e.g. for stencil printing
Description
【０００１】[0001]
【産業上の利用分野】本発明は、顔料固着性に優れた孔
版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 stencil printing ink having excellent pigment fixing properties.
【０００２】[0002]
【従来の技術】簡易印刷等に使用されている孔版印刷用
インキは、乾燥性に優れる事から、油中水滴型エマルシ
ョンが多く使用されている。油相中に樹脂成分が含まれ
ると、顔料分散性、固着性が良化し、印刷物をこすって
も色落ちしにくくなるが、そのなかでも脂肪酸変性アル
キッド樹脂が比較的良好である。しかし、顔料固着性は
十分とは言えなかった。2. Description of the Related Art Water-in-oil emulsions are often used in stencil printing inks used for simple printing and the like because of their excellent drying properties. When a resin component is contained in the oil phase, pigment dispersibility and fixability are improved, and it is difficult to discolor the printed matter even when it is rubbed. Among them, fatty acid-modified alkyd resin is relatively good. However, the pigment fixability was not sufficient.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、顔料固着性
に優れた孔版印刷用インキを提供することを目的とす
る。SUMMARY OF THE INVENTION An object of the present invention is to provide a stencil printing ink having excellent pigment fixation.
【０００４】[0004]
【課題を解決するための手段】本発明は、油長６０〜９
０、ヨウ素価８０以下である脂肪酸変性アルキッド樹脂
０．５〜１５重量％、顔料１〜２０重量％、および顔料
に対して０．５〜５重量％の下記アルミニウムキレート
化合物を含む油相１５〜５０重量％中に、水相８５〜５
０重量％が分散されてなる孔版印刷用インキに関する。According to the present invention, an oil length of 60 to 9 is provided.
0, an oil phase containing 0.5 to 15% by weight of a fatty acid-modified alkyd resin having an iodine value of 80 or less, 1 to 20% by weight of a pigment, and 0.5 to 5% by weight of the pigment based on the following aluminum chelate compound: Water phase 85-5 in 50% by weight
It relates to a stencil printing ink in which 0% by weight is dispersed.
【０００５】[0005]
【化２】 Embedded image
【０００６】（式中、Ｒ1 はイソプロピル基、sec.−ブ
チル基またはイソブチル基を示し、Ｒ 2 はオレイル基ま
たはオクタデシル基を示し、ｎは１または２を示す。）
本発明の孔版印刷用インキは、油相中に水相が微分散し
た油中水滴型エマルションインキである。油相は、アル
キッド樹脂、顔料、アルミキレート化合物、溶剤および
乳化剤等を含む。油相は、全インキ中の１５〜５０重量
％を構成する。(Where R1Is an isopropyl group, sec.
A tyl group or an isobutyl group; TwoIs an oleyl group
Or octadecyl group, and n represents 1 or 2. )
In the stencil printing ink of the present invention, the aqueous phase is finely dispersed in the oil phase.
It is a water-in-oil emulsion ink. The oil phase is Al
Kid resins, pigments, aluminum chelate compounds, solvents and
Contains an emulsifier and the like. Oil phase is 15 to 50% by weight in all inks
Make up%.
【０００７】本発明のアルキッド樹脂は、油脂と多塩基
酸と多価アルコールを構成成分とする。油脂としては、
ヤシ油、パーム油、オリーブ油、ひまし油、米糠油、綿
実油等の不乾性油あるいは半乾性油およびこれらの脂肪
酸がヨウ素価を８０以下とするために好ましいが、大豆
油、アマニ油、キリ油等の乾性油等を一部使用すること
ができる。The alkyd resin of the present invention comprises fats and oils, a polybasic acid and a polyhydric alcohol. As fats and oils,
Non-drying oils such as coconut oil, palm oil, olive oil, castor oil, rice bran oil, cottonseed oil or semi-drying oils and these fatty acids are preferred in order to make the iodine value 80 or less, but soybean oil, linseed oil, kiri oil and the like Drying oil and the like can be partially used.
【０００８】多塩基酸としては、無水フタル酸、イソフ
タル酸、テレフタル酸、コハク酸、アジピン酸、セバシ
ン酸、テトラヒドロフタル酸等の飽和多塩基酸、マレイ
ン酸、無水マレイン酸、フマル酸、イタコン酸、無水シ
トラコン酸等の不飽和多塩基酸が使用できる。The polybasic acids include saturated polybasic acids such as phthalic anhydride, isophthalic acid, terephthalic acid, succinic acid, adipic acid, sebacic acid and tetrahydrophthalic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid And unsaturated polybasic acids such as citraconic anhydride.
【０００９】多価アルコールとしては、エチレングリコ
ール、ジエチレングリコール、トリエチレングリコー
ル、ポリエチレングリコール、プロピレングリコール、
トリメチレングリコール、テトラメチレングリコール、
グリセリン、トリメチロールプロパン、ネオペンチルグ
リコール、ジグリセリン、トリグリセリン、ペンタエリ
スリット、ジペンタエリスリット、マンニット、ソルビ
ット等が使用できる。The polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol,
Trimethylene glycol, tetramethylene glycol,
Glycerin, trimethylolpropane, neopentyl glycol, diglycerin, triglycerin, pentaerythrit, dipentaerythrit, mannitol, sorbit and the like can be used.
【００１０】アルキッド樹脂の油長は、油脂中の脂肪酸
がトリグリセライドで存在したときの樹脂中の重量％で
示される。油長が６５〜８０が好ましく、６０より短
い、あるいは９０より長いと顔料の分散性が劣るので好
ましくない。また、ヨウ素価が８０より大きくなると印
刷機の版胴上で皮膜形成しやすく、長期間放置すると版
胴スクリーンの目詰まりを起こすので好ましくない。[0010] The oil length of the alkyd resin is expressed in terms of% by weight in the resin when the fatty acid in the fat or oil is present as triglyceride. The oil length is preferably from 65 to 80, and if the oil length is shorter than 60 or longer than 90, the dispersibility of the pigment is inferior. On the other hand, if the iodine value is larger than 80, a film is easily formed on the plate cylinder of the printing press, and if left for a long period of time, the screen of the plate cylinder is clogged, which is not preferable.
【００１１】顔料としては、カーボンブラック、二酸化
チタン、紺青、シリカ、炭酸カルシウム、マイカ等の無
機顔料、フタロシアニン、不溶性アゾ、溶性アゾ、キナ
クリドン等の有機顔料を使用することができる。顔料の
含有量は全インキを基準として１〜２０重量％である。As the pigment, inorganic pigments such as carbon black, titanium dioxide, navy blue, silica, calcium carbonate and mica, and organic pigments such as phthalocyanine, insoluble azo, soluble azo and quinacridone can be used. The pigment content is from 1 to 20% by weight, based on the total ink.
【００１２】本発明のアルミキレート化合物は、アルミ
ニウムアルコラートとアセト酢酸エステルを反応させて
得ることができるが、市販品としては、川研ファインケ
ミカル（株）製アルミキレートＭ、味の素（株）製プレ
ンアクトＡＬ−Ｍ（ジイソプロポキシアルミニウムモノ
オレイルアセトアセテート）がある。The aluminum chelate compound of the present invention can be obtained by reacting an aluminum alcoholate with an acetoacetate ester. Commercial products include aluminum chelate M manufactured by Kawaken Fine Chemical Co., Ltd., and Plenact AL manufactured by Ajinomoto Co., Ltd. -M (diisopropoxyaluminum monooleyl acetoacetate).
【００１３】[0013]
【化３】 Embedded image
【００１４】本発明のアルミニウムキレート化合物は、
−ＯＲ1 基が顔料の親水性表面と反応性があり、顔料表
面を親油性にするといわれており、ｎが１より小さいと
反応性が高すぎ、２より大きいと反応性が低すぎ好まし
くない。アルミニウムキレート化合物の含有量は、顔料
に対して０．５〜５重量％である。The aluminum chelate compound of the present invention comprises
It is said that the —OR 1 group is reactive with the hydrophilic surface of the pigment and renders the pigment surface lipophilic. If n is smaller than 1, the reactivity is too high, and if it is larger than 2, the reactivity is too low, which is not preferable. . The content of the aluminum chelate compound is 0.5 to 5% by weight based on the pigment.
【００１５】本発明の孔版インキは、顔料の分散性、濡
れ、油相の流動性を大幅に向上させる事によって、紙へ
印刷した時の浸透性を高め、顔料のチョーキング（顔料
以外に成分が先に浸透し、表面に顔料だけ残った状態）
を防ぎ、顔料固着性に優れている。アルミキレート化合
物のみの添加でも若干の向上は認められるが、本発明の
アルキッド樹脂との併用により、大幅に顔料固着性に優
れたものとなる。また、同様な理由から、顔料以外の油
相成分対顔料の比率は、使用する顔料の吸油量の２倍以
上が好ましい。[0015] The stencil ink of the present invention improves the permeability when printed on paper by greatly improving the dispersibility, wetting, and fluidity of the oil phase of the pigment. (Penetrated first, leaving only pigment on the surface)
And excellent pigment fixation. Although a slight improvement is observed even when the aluminum chelate compound alone is added, the use of the alkyd resin of the present invention significantly improves the pigment fixability. For the same reason, the ratio of the oil phase component other than the pigment to the pigment is preferably at least twice the oil absorption of the pigment used.
【００１６】溶剤としては、ひまし油、パーム油、ヤシ
油、トール油、大豆油等の植物油、沸点が２００℃以上
の石油系溶剤、スピンドル油、流動パラフィン、モータ
ー油、ギヤ油、マシン油等の石油系油およびエチレン、
プロピレン、ブテン等の不飽和炭化水素の重合によって
得られる合成油等が使用できる。溶剤は全インキ中５〜
２５重量％を含有させる。Examples of the solvent include vegetable oils such as castor oil, palm oil, coconut oil, tall oil, soybean oil, petroleum solvents having a boiling point of 200 ° C. or higher, spindle oil, liquid paraffin, motor oil, gear oil, machine oil, etc. Petroleum oils and ethylene,
Synthetic oils obtained by polymerization of unsaturated hydrocarbons such as propylene and butene can be used. Solvent is 5 in all inks
It contains 25% by weight.
【００１７】乳化剤としては、ソルビタン系脂肪酸エス
テル、グリセリンもしくはポリグリセリン脂肪酸エステ
ル、シュガーエステル、ポリオキシエチレン脂肪酸エス
テル等のＨＬＢが１０以下のノニオン系のものを使用す
ることができる。水相は、水以外に凍結防止、蒸発抑制
のために、エチレングリコール、グリセリン、プロピレ
ングリコール等の多価アルコールを添加することができ
る。又、インキのエマルション安定性向上のために、メ
チルセルロース、カルボキシメチルセルロース等の水溶
性高分子、防腐剤、電解質等を添加することができる。As the emulsifier, nonionic ones having an HLB of 10 or less such as sorbitan fatty acid ester, glycerin or polyglycerin fatty acid ester, sugar ester and polyoxyethylene fatty acid ester can be used. In addition to water, a polyhydric alcohol such as ethylene glycol, glycerin, or propylene glycol can be added to the aqueous phase to prevent freezing and suppress evaporation. In order to improve the emulsion stability of the ink, a water-soluble polymer such as methylcellulose and carboxymethylcellulose, a preservative, an electrolyte and the like can be added.
【００１８】本発明の孔版印刷用インキは、着色剤を油
層成分の全部あるいは一部に添加し、三本ロールミル、
サンドミル等の分散機で練肉、分散し、乳化剤を添加し
て水を徐々に添加しながら、ホモミキサー、サンドミ
ル、ディスパー等の分散機で油中水滴型エマルションと
する。微分散される水相の粒子径は５０μｍ以下が好ま
しい。The stencil printing ink of the present invention is obtained by adding a colorant to all or a part of an oil layer component, and using a three-roll mill,
The mixture is kneaded and dispersed by a disperser such as a sand mill, and while adding an emulsifier and gradually adding water, a water-in-oil emulsion is formed by a disperser such as a homomixer, a sand mill, and a disper. The particle size of the finely dispersed aqueous phase is preferably 50 μm or less.
【００１９】[0019]
【実施例】本発明を実施例に基づいて説明する。例中、
「部」「％」は、それぞれ「重量部」「重量％」であ
る。 実施例１ 攪拌機付４ツ口フラスコにやし油７６部、ペンタエリス
リット７部、水酸化ナトリウム０．０５部を仕込み、窒
素気流下で２４０℃でエステル交換反応を行い、その後
イソフタル酸１７部を仕込み、さらに反応させアルキッ
ド樹脂を得た。この樹脂のヨウ素価は１０以下であっ
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on embodiments. In the example,
“Parts” and “%” are “parts by weight” and “% by weight”, respectively. Example 1 A four-necked flask equipped with a stirrer was charged with coconut oil (76 parts), pentaerythritol (7 parts), and sodium hydroxide (0.05 part), and subjected to a transesterification reaction at 240 ° C under a nitrogen stream, and then isophthalic acid (17 parts). And further reacted to obtain an alkyd resin. The iodine value of this resin was 10 or less.
【００２０】この樹脂１０部、日本石油化学（株）製Ａ
Ｆソルベント５ １０部を混合し、さらにファーネスカ
ーボンブラック５部、アルミキレートＭ０．２部を混
合、３本ロールで練肉した。これにソルビタンセスキオ
レエート５部を混合し油相とした。この油相に対し予め
硫酸マグネシウム１部、グリセリン１０部、水５９部を
混合した水相を徐々に加えながら、ディスパーで攪拌乳
化し、孔版印刷用インキを得た。このインキを用い株式
会社リコー製プリポートＶＴ−３５００（単胴式孔版印
刷機）を用いて印刷したところ問題なく印刷が行なえ
た。また印刷物をこすってみたが、色落ちが少く顔料固
着性に優れたものであった。さらに印刷機をインキを入
れた状態で４８時間放置後印刷を再開したが、版胴の詰
まりもなく良好であった。10 parts of this resin, A, manufactured by Nippon Petrochemical Co., Ltd.
5 parts of F solvent were mixed, 5 parts of furnace carbon black and 0.2 part of aluminum chelate M were mixed, and the mixture was kneaded with three rolls. To this, 5 parts of sorbitan sesquioleate was mixed to obtain an oil phase. The oil phase was stirred and emulsified with a disper while gradually adding an aqueous phase in which 1 part of magnesium sulfate, 10 parts of glycerin and 59 parts of water had been mixed in advance to obtain a stencil printing ink. When printing was performed using this ink using a pre-port VT-3500 (single cylinder type stencil printing machine) manufactured by Ricoh Co., Ltd., printing could be performed without any problem. Further, when the printed matter was rubbed, it was found that there was little discoloration and the pigment fixability was excellent. Further, printing was resumed after the printing machine was left for 48 hours in a state where the ink was filled, and the printing was good without clogging of the plate cylinder.
【００２１】実施例２〜４および比較例１〜４ 実施例１と同様にして、乳化剤、水相以外を変えてイン
キを調整し、評価した結果を表１に示す。Examples 2 to 4 and Comparative Examples 1 to 4 Inks were prepared in the same manner as in Example 1 except that the emulsifier and the aqueous phase were changed, and the evaluation results are shown in Table 1.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【発明の効果】本発明の孔版印刷用インキは、脂肪酸変
性アルキッドとアルミニウムキレート化合物を併用して
いる事により、顔料のヌレ、油相の流動性に優れること
から、印刷物の顔料固着性に優れる。また、脂肪酸変性
アルキッドのヨウ素価が低いことにより、印刷機上での
放置後もインキによる版胴のつまりがない。The stencil printing ink of the present invention is excellent in pigment wetting and fluidity of the oil phase due to the combined use of a fatty acid-modified alkyd and an aluminum chelate compound, so that the printed matter has excellent pigment fixability. . Further, since the iodine value of the fatty acid-modified alkyd is low, the plate cylinder is not clogged with the ink even after being left on a printing press.
【００２４】[0024]
Claims (1)
る脂肪酸変性アルキッド樹脂０．５〜１５重量％、顔料
１〜２０重量％、および顔料に対して０．５〜５重量％
の下記アルミニウムキレート化合物を含む油相１５〜５
０重量％中に、水相８５〜５０重量％が分散されてなる
孔版印刷用インキ。 【化１】 （式中、Ｒ1 はイソプロピル基、sec.−ブチル基または
イソブチル基を示し、Ｒ2 はオレイル基またはオクタデ
シル基を示し、ｎは１または２を示す。）1. A fatty acid-modified alkyd resin having an oil length of 60 to 90 and an iodine value of 80 or less 0.5 to 15% by weight, a pigment 1 to 20% by weight, and 0.5 to 5% by weight based on the pigment.
Oil phase 15 to 5 containing the following aluminum chelate compound:
A stencil printing ink in which 85 to 50% by weight of an aqueous phase is dispersed in 0% by weight. Embedded image (In the formula, R 1 represents an isopropyl group, sec.-butyl group or isobutyl group, R 2 represents an oleyl group or an octadecyl group, and n represents 1 or 2.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8289693A JP3008724B2 (en) | 1993-04-09 | 1993-04-09 | Ink for stencil printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8289693A JP3008724B2 (en) | 1993-04-09 | 1993-04-09 | Ink for stencil printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06293873A JPH06293873A (en) | 1994-10-21 |
| JP3008724B2 true JP3008724B2 (en) | 2000-02-14 |
Family
ID=13787035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8289693A Expired - Fee Related JP3008724B2 (en) | 1993-04-09 | 1993-04-09 | Ink for stencil printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3008724B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3614668B2 (en) * | 1998-06-23 | 2005-01-26 | 理想科学工業株式会社 | Emulsion ink for stencil printing |
| JP4860908B2 (en) * | 2004-05-13 | 2012-01-25 | 東北リコー株式会社 | Emulsion ink for stencil printing |
| JP2006124464A (en) * | 2004-10-27 | 2006-05-18 | Tohoku Ricoh Co Ltd | Emulsion ink for screen printing |
| JP2007246649A (en) * | 2006-03-15 | 2007-09-27 | Dainippon Ink & Chem Inc | Printing ink composition |
-
1993
- 1993-04-09 JP JP8289693A patent/JP3008724B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06293873A (en) | 1994-10-21 |
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