JPH0621261B2 - Oil-based ink - Google Patents
Oil-based inkInfo
- Publication number
- JPH0621261B2 JPH0621261B2 JP61015316A JP1531686A JPH0621261B2 JP H0621261 B2 JPH0621261 B2 JP H0621261B2 JP 61015316 A JP61015316 A JP 61015316A JP 1531686 A JP1531686 A JP 1531686A JP H0621261 B2 JPH0621261 B2 JP H0621261B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- propylene glycol
- glycol monomethyl
- monomethyl ether
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，低毒性かつ経年安定性の優れた油性インキに
関する。更に詳しくは，筆記具用として用いた場合，経
年後にもカスレを生じない油性インキに関するものであ
る。TECHNICAL FIELD The present invention relates to an oil-based ink having low toxicity and excellent stability over time. More specifically, the present invention relates to an oil-based ink which does not cause blur even when used for writing instruments.
（従来の技術） 従来，速乾性マーキングペン用インキ，所謂油性インキ
の主溶剤としてはトルエン・キシレンが用いられてい
た。しかしながら，近年前記溶剤の毒性が問題となり，
油性インキの主溶剤として低毒性のプロピレングリコー
ルモノメチルエーテルやプロピレングリコールモノメチ
ルエーテルアセテートが用いられるようになった。(Prior Art) Conventionally, toluene / xylene has been used as a main solvent for inks for quick-drying marking pens, so-called oil-based inks. However, in recent years, the toxicity of the solvent has become a problem,
Low toxicity propylene glycol monomethyl ether and propylene glycol monomethyl ether acetate have come to be used as a main solvent for oil-based inks.
（発明が解決しようとする問題点） しかしながら，主溶剤としてプロピレングリコールモノ
メチルエーテルやプロピレングリコールモノメチルエー
テルアセテートを用いた油性インキは，経時的に着色剤
である染料が不溶化・析出するという問題があり，該油
性インキを筆記具に充填し放置した場合には，ペン先か
らのインキの吐出が悪くなり筆跡のカスレが生じるとい
う問題点があった。(Problems to be Solved by the Invention) However, the oil-based ink using propylene glycol monomethyl ether or propylene glycol monomethyl ether acetate as the main solvent has a problem that the dye, which is a coloring agent, becomes insoluble and precipitates with time. When the writing instrument is filled with the oil-based ink and left to stand, there is a problem in that the ejection of the ink from the pen tip is deteriorated and the handwriting is blurred.
（問題点を解決するための手段） そこで，本発明者等は，筆記具に充填し経年放置しても
カスレを生じない，経年安定生の優れた油性インキを得
るべく鋭意研究を重ねた結果，遂に本発明を完成させた
ものである。(Means for Solving Problems) Therefore, the inventors of the present invention have conducted diligent research to obtain an oil-based ink excellent in aging stability, which does not cause bleeding even when filled in a writing instrument and left standing for a long time. Finally, the present invention has been completed.
即ち，本発明は，造塩タイプ油溶性染料と，プロピレン
グリコールモノメチルエーテル及び／又はプロピレング
リコールモノメチルエーテルアセテートと，炭素数が３
以下の一価のアルコールとを少なくとも含む油性インキ
を要旨とするものである。That is, the present invention relates to a salt-forming oil-soluble dye, propylene glycol monomethyl ether and / or propylene glycol monomethyl ether acetate, and 3 carbon atoms.
The gist is an oil-based ink containing at least the following monohydric alcohol.
本発明の構成について以下に詳細に説明する。The configuration of the present invention will be described in detail below.
着色剤である造塩タイプ油溶性染料は，水溶性染料であ
る酸性染料・直接染料・塩基性染料等の親水基−例えば
Ｎa+・Cl−など−を疎水性基に置換した染料であり，疎
水性基としては酸性染料・直接染料に対してはカチオン
活性剤・樹脂塩基・アミン・塩基性染料等が有り，塩基
性染料に対してはアニオン活性剤・樹脂酸・酸性染料・
直接染料がある。該造塩タイプ油溶性染料は例えば，C.
I.Solvent Violet ２７，C.I.Solvent Red ８１，C.I.S
olvent Red ８２，C.I.Solvent Yellow１５等を用いる
事ができ，その使用量はインキ全量に対し３〜２０重量
％が好ましい。主溶剤であるプロピレングリコールモノ
メチルエーテル・プロピレングリコールモノメチルエー
テルアセテートは各々単独又は混合して用いてもよく，
使用量としてはインキ全体に対し６０〜９０重量％が好
ましい。The salt-forming oil-soluble dye that is a colorant is a dye in which a hydrophilic group such as an acid dye, a direct dye, or a basic dye that is a water-soluble dye, such as Na + · Cl − , is replaced with a hydrophobic group. Hydrophobic groups include acid dyes, cation activators, resin bases, amines and basic dyes for direct dyes, and anion activators, resin acids, acid dyes for basic dyes.
There is a direct dye. The salt-forming oil-soluble dye is, for example, C.I.
I.Solvent Violet 27, CISolvent Red 81, CIS
olvent Red 82, CISolvent Yellow 15 and the like can be used, and the amount thereof is preferably 3 to 20% by weight based on the total amount of the ink. The main solvents propylene glycol monomethyl ether and propylene glycol monomethyl ether acetate may be used alone or in combination,
The amount used is preferably 60 to 90% by weight based on the total ink.
本発明の骨子である炭素数が３以下の一価アルコール，
即ちメチルアルコール・エチルアルコール・ｎ−プロピ
ルアルコール・iso−プロピルアルコールは，造塩タイ
プ油溶性染料の溶解助剤として用いるものであり，各々
単独又は混合して用いてもよく，使用量としてはインキ
全体に対し５〜４０重量％が好ましい。A monohydric alcohol having 3 or less carbon atoms, which is the essence of the present invention,
That is, methyl alcohol, ethyl alcohol, n-propyl alcohol, and iso-propyl alcohol are used as dissolution aids for salt-forming oil-soluble dyes, and they may be used alone or as a mixture. It is preferably 5 to 40% by weight based on the whole.
油性インキの筆跡の定着剤としては前述の溶剤に可溶な
ロジン等の天然樹脂やフェノール樹脂，ケトン樹脂等の
合成樹脂をインキ全量に対して１〜２０重量％使用する
事が好ましい。As a fixing agent for the handwriting of the oil-based ink, it is preferable to use 1 to 20% by weight of a natural resin such as rosin or a synthetic resin such as a phenol resin or a ketone resin, which is soluble in the above-mentioned solvent, with respect to the total amount of the ink.
その他必要に応じ，ベンゾトリアゾール・ジシクロヘキ
シルアンモニウムナイトライド等の防錆剤や界面活性剤
等を適量加えてもよい。In addition, if necessary, an appropriate amount of a rust preventive such as benzotriazole / dicyclohexylammonium nitride or a surfactant may be added.
（作用） 本発明に係る油性インキが何故経年後もカスレを生じな
いかについて，その理由は次の様に推察される。即ち，
炭素数が３以下の一価のアルコールは比較的親水性が強
く，又は，造塩タイプ油溶性染料も親水性に近い為に互
いに相溶し，強い親和力を有して，造塩タイプ油溶性染
料のプロピレングリコールモノメチルエーテル及び／又
はプロピレングリコールモノメチルエーテルアセテート
との経年溶解安定性を向上し，経年後にも染料が不溶化
・析出しない為である。(Operation) The reason why the oil-based ink according to the present invention does not cause blurring after aging is presumed to be as follows. That is,
Monohydric alcohols with 3 or less carbon atoms have relatively strong hydrophilicity, or salt-forming oil-soluble dyes are compatible with each other because they are close in hydrophilicity, and have a strong affinity for salt-forming oil-soluble dyes. This is because the aging stability of the dye with propylene glycol monomethyl ether and / or propylene glycol monomethyl ether acetate is improved, and the dye does not become insoluble or precipitate even after aging.
（実施例） 以下，実施例により更に具体的に説明するが実施例中単
に「部」とあるのは「重量部」を示す。(Examples) Hereinafter, the present invention will be described more specifically with reference to Examples, but in the Examples, "parts" simply means "parts by weight".
〔実施例１〕 Aizen Spilon Fiery Red ＢＨ （C.I.Solvent Red ８１，保土 谷化学工業(株)製） ５．０部 ヒタノール＃１５０１（フェノール 樹脂，日立化成(株)製） ５．０部 プロピレングリコールモノメチル エーテル ７５．０部 メチルアルコール １５．０部 上記成分を密閉容器中で４時間撹拌混合し赤色インキを
得た。[Example 1] Aizen Spilon Fiery Red BH (CISolvent Red 81, Hodogaya Chemical Co., Ltd.) 5.0 parts Hitanol # 1501 (phenol resin, Hitachi Chemical Co., Ltd.) 5.0 parts Propylene glycol monomethyl Ether 75.0 parts Methyl alcohol 15.0 parts The above components were stirred and mixed in a closed container for 4 hours to obtain a red ink.
〔比較例１〕 実施例１のメチルアルコールを除き，その量だけプロピ
レングリコールモノメチルエーテルを加え，他は実施例
１と同様にして赤色インキを得た。[Comparative Example 1] A red ink was obtained in the same manner as in Example 1 except that methyl alcohol of Example 1 was removed and propylene glycol monomethyl ether was added in that amount.
〔実施例２〕 Aizen Spilon Pink ＢＨ（C.I.Solvent Red ８２，保土
谷化学 工業(株)製） ６．０部 ガムロジンＷＷ（ロジン系樹脂）， 安原工業(株)製） ４．０部 プロピレングリコールモノメチルエーテルアセテート ７０．０部 エチルアルコール １５．０部 上記成分を実施例１と同様にして赤色インキを得た。[Example 2] Aizen Spilon Pink BH (CISolvent Red 82, Hodogaya Chemical Co., Ltd.) 6.0 parts Gum Rosin WW (rosin resin), Yasuhara Kogyo Co., Ltd. 4.0 parts Propylene glycol monomethyl ether Acetate 70.0 parts Ethyl alcohol 15.0 parts A red ink was obtained in the same manner as in Example 1.
〔比較例２〕 実施例２のエチルアルコールを除き，その量だけプロピ
レングリコールモノメチルアセテートを加え，他は実施
例１と同様にして淡紅色インキを得た。Comparative Example 2 A light pink ink was obtained in the same manner as in Example 1 except that ethyl alcohol of Example 2 was removed, and propylene glycol monomethyl acetate was added in that amount.
〔実施例３〕 Aizen Spilon Violet ＥＣＨ （C.I.Disperse Violet ２７， 保土谷化学工業(株)製） ９．０部 ヒタノール＃１５０１ ８．０部 プロピレングリコールモノメチル エーテル ３０．０部 プロピレングリコールモノメチル エーテルアセテート ３８．０部 メチルアルコール １０．０部 ｎ−プロピルアルコール ５．０部 上記成分を実施例１と同様にして，紫色インキを得た。[Example 3] Aizen Spilon Violet ECH (CIDisperse Violet 27, manufactured by Hodogaya Chemical Co., Ltd.) 9.0 parts Hitanol # 1501 8.0 parts Propylene glycol monomethyl ether 30.0 parts Propylene glycol monomethyl ether acetate 38. 0 part Methyl alcohol 10.0 parts n-Propyl alcohol 5.0 parts The same components as in Example 1 were used to obtain a purple ink.
〔比較例３〕 Aizen Spilon Violet ＥＣＨ ９．０部 ヒタノール＃１５０１ ８．０部 プロピレングリコールモノメチル エーテル ４０．０部 プロピレングリコールモノメチル エーテルアセテート ４３．０部 上記成分を実施例１と同様にして，紫色インキを得た。[Comparative Example 3] Aizen Spilon Violet ECH 9.0 parts Hitanol # 1501 8.0 parts Propylene glycol monomethyl ether 40.0 parts Propylene glycol monomethyl ether acetate 43.0 parts The same components as in Example 1 were used to prepare a purple ink. Got
（発明の効果） 実施例１〜３及び比較例１〜３によって得られたインキ
を繊維ペン先を有する筆記具に充填し，５０℃３０％の
恒温・恒湿室にペン先を下向けにし１カ月静置した後，
ＪＩＳＰ３２０１上質紙Ａに手書き筆記を行ない，筆跡
のカスレの有無を判定した。(Effects of the Invention) The inks obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were filled in a writing instrument having a fiber nib, and the nib was faced down to a constant temperature / humidity chamber at 50 ° C and 30%. After standing for a month,
Handwriting was performed on JISP3201 high-quality paper A, and it was determined whether or not the handwriting was blurred.
結果，実施例１〜３はカスレが発生せず，比較例１〜３
はカスレが発生した。As a result, in Examples 1 to 3, no blur was generated, and in Comparative Examples 1 to 3.
There was a blur.
以上の様に，本発明の油性インキは，染料の溶解安定性
が高い為，筆記具に充填し経時試験を行なっても筆跡の
カスレが生じないという実用上に優れた性能を有するイ
ンキであり，この故に筆記具用のみならず，スタンプ
用，記録計用や，インキジェット用インキとしても使用
し得るものである。As described above, since the oil-based ink of the present invention has a high dye dissolution stability, it is an ink having practically excellent performance in that no blur of the handwriting occurs even when it is filled in a writing instrument and subjected to a time test. Therefore, the ink can be used not only for writing instruments but also for stamps, recorders, and ink jets.
Claims (1)
コールモノメチルエーテル及び／又はプロピレングリコ
ールモノメチルエーテルアセテートと，炭素数が３以下
の一価のアルコールとを少なくとも含む油性インキ。1. An oil-based ink containing at least a salt-forming oil-soluble dye, propylene glycol monomethyl ether and / or propylene glycol monomethyl ether acetate, and a monohydric alcohol having 3 or less carbon atoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61015316A JPH0621261B2 (en) | 1986-01-27 | 1986-01-27 | Oil-based ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61015316A JPH0621261B2 (en) | 1986-01-27 | 1986-01-27 | Oil-based ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174282A JPS62174282A (en) | 1987-07-31 |
| JPH0621261B2 true JPH0621261B2 (en) | 1994-03-23 |
Family
ID=11885373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61015316A Expired - Lifetime JPH0621261B2 (en) | 1986-01-27 | 1986-01-27 | Oil-based ink |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621261B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207377A (en) * | 1986-03-07 | 1987-09-11 | Mitsubishi Pencil Co Ltd | Oil-based marker ink composition |
| JP2534259B2 (en) * | 1987-05-27 | 1996-09-11 | 株式会社リコー | Ink for electrophotographic toner image marker |
| JP2002060661A (en) * | 2000-08-17 | 2002-02-26 | Dainippon Ink & Chem Inc | Ink composition for jet printer |
| US6692881B2 (en) | 2001-05-30 | 2004-02-17 | Ricoh Company Limited | Recording liquid and image forming method using the recording liquid |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919175A (en) * | 1972-06-14 | 1974-02-20 | ||
| DE2732557A1 (en) * | 1977-07-19 | 1979-02-01 | Bayer Ag | ESTERS OF ACYLATED AMINOCARBON ACIDS |
| JPS5647462A (en) * | 1979-09-28 | 1981-04-30 | Pentel Kk | Oil ink |
| JPS5863764A (en) * | 1981-10-09 | 1983-04-15 | Pentel Kk | Oil-based ink |
| JPS59155475A (en) * | 1983-02-22 | 1984-09-04 | Pentel Kk | Oil-based ink |
| JPS6084369A (en) * | 1983-10-13 | 1985-05-13 | Orient Kagaku Kogyo Kk | Ink for marking pen |
| JPS60110769A (en) * | 1983-11-18 | 1985-06-17 | Sakura Color Prod Corp | Washable ink composition |
-
1986
- 1986-01-27 JP JP61015316A patent/JPH0621261B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62174282A (en) | 1987-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |