JPH0541673B2 - - Google Patents

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Publication number
JPH0541673B2
JPH0541673B2 JP59035747A JP3574784A JPH0541673B2 JP H0541673 B2 JPH0541673 B2 JP H0541673B2 JP 59035747 A JP59035747 A JP 59035747A JP 3574784 A JP3574784 A JP 3574784A JP H0541673 B2 JPH0541673 B2 JP H0541673B2
Authority
JP
Japan
Prior art keywords
ink
emulsion
parts
handwriting
manufactured
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
Application number
JP59035747A
Other languages
Japanese (ja)
Other versions
JPS60179478A (en
Inventor
Eiichi Okabe
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.)
Pentel Co Ltd
Original Assignee
Pentel Co Ltd
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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP59035747A priority Critical patent/JPS60179478A/en
Publication of JPS60179478A publication Critical patent/JPS60179478A/en
Publication of JPH0541673B2 publication Critical patent/JPH0541673B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、水性の筆記具用インキに関し、更に
詳細には非吸収面においての筆跡がストリツパブ
ルペイントの性能を有し、かつ、繊維ペン先、樹
脂成型ペン先を有する筆記具よりインキが吐出で
きるようにした水性の筆記具用インキに関するも
のである。 従来、ストリツパブルペイントはエチルセルロ
ース、ポリ酢酸ビニル樹脂、ブチラール樹脂、酢
酸ビニル−アクリル酸エステル共重合樹脂などの
有機溶剤可溶型の組成物、ポリ酢酸ビニルエマル
ジヨン、ブチラール樹脂エマルジヨンなどのよう
な乳化型の組成物、あるいはポリビニルアルコー
ル水溶液などが知られており、自動車、航空機、
機械部品、金属製家庭用器具、その他鉄及び非鉄
金属用品、ガラス製品、プラスチツク成型品、ゴ
ム製品などの一時的な表面保護を目的とし、これ
らの製品を使用する直前に完全に剥離出来る様に
なした塗材であり、通常の塗料と同様に、スプレ
ー塗装、刷毛塗り、又はデイツピングなどの方法
により塗装されている。近時、ストリツパブルペ
イントに顔料及び/又は、染料を添加し、着色ス
トリツパブルペイントとして、ガラスウインドー
などの装飾用にも使用されつつある。 しかし乍ら広い面に於ては、スプレー塗装、刷
毛塗りにより彩色塗装は、可能であるものの細部
塗装、微細模様の彩色塗装に於ては、従来の塗装
法では困難であつた。 一方、細部塗装あるいは微細模様の彩色塗装に
於ては通常の油性ペイントマーカーが有るがこれ
は剥離が困難であり、消去に際しては、該インキ
に使用せる有機溶剤、若しくは該インキに対し、
溶解性を有する溶剤にて消去するなど仲々困難で
あり、有機溶剤を使用する為にその臭気、毒性が
問題であつた。 又非吸収面に消去可能な油性マーカーインキと
していわゆるホワイトボード用マーカーインキが
有るもののこれは、ホワイトボードとの筆跡の密
着性を極めて低くし、布、紙などで容易に払拭出
来るようにされており、従つて、手、指などで触
れるだけでも消去され、筆跡の保持性という点で
は極めて弱いものであつた。更には、密着性を低
くし筆跡自体の凝集力が低い為に消去に際して
は、筆跡の消し屑(粉)が飛散し、手、服、周囲
を汚染するという欠点、及び有機溶剤を使用する
為に油性ペイントマーカーと同様の臭気、毒性の
問題を有していた。 そこで、本発明の目的は、臭気、毒性がなく非
吸収面に於て、筆跡(塗膜)の保持性を向上せし
め、任意の時期に完全に連続的にフイルム状に剥
離可能にならしめ、かつ、細部塗装、微細塗装が
可能なように繊維ペン先、樹脂成型ペン先を有す
る筆記具より吐出可能な筆記具用インキを提供す
ることにある。 即ち、本発明は、水性可剥性被覆剤に使用され
る最低造膜温度が12℃以下のエマルジヨンと、染
料及び/又は顔料と、表面張力調整剤として界面
活性剤と、水とから少なくともなる筆記具用イン
キであつて、下記条件を有する筆跡が連続剥離可
能な筆記具用インキを要旨とするものである。 <条件> ●エマルジヨンの固形分が筆記具用インキ全量に
対して5〜40重量%であること。 ●粘度が60cps/25℃以下であること。 ●表面張力が20〜38dyne/cmであること。 以下、本発明を詳細に説明する。 水性可剥性被覆剤に使用されるエマルジヨン
は、インキのバインダーであり、かつ、インキの
剥離性を発現せしめるものであつて、ストリツパ
ブルペイントとして用いられる処の公知のアクリ
ル酸エステルエマルジヨン、ポリ酢酸ビニルエマ
ルジヨン、スチレン−ブタジエンエマルジヨン、
ブチラール樹脂エマルジヨン、エチレン−酢酸ビ
ニルエマルジヨン、スチレン−アクリル酸エステ
ルエマルジヨン、などのうち、エマルジヨンが筆
記後、少なくとも室温にて連続塗膜を形成するた
めに、最低造膜温度(MFT)は12℃以下のもの
を使用する必要がある。筆跡(塗膜)の保持性が
良好で連続剥離を可能とする為には、インキ中の
エマルジヨンの固形分が高い方が好ましく、よつ
て使用するエマルジヨンは粘度が低い方が、イン
キの吐出を考慮すれば好ましい。上述の点を考慮
し種々検討した結果、エマルジヨンの固形分は筆
記具用インキ全量に対し5〜40重量%であること
が必要である。尚、エマルジヨンの造膜性を更に
向上するために、可塑剤や、被膜形成助剤(例え
ば、ブチルカルビトール、ブチルカルビトールア
セテート、ヘキシレングリコールなどの高沸点溶
剤)を適宜、少量添加してもよい。 染料及び/又は顔料は、着色の為に使用される
ものであつて、染料ならば可溶なものを使用し、
顔料は無機系、有機系を問わず使用できる。染料
及び/又は顔料の使用量は3〜30重量%が良好で
ある。 表面張力調整剤としての界面活性剤は、インキ
の表面張力を調整し、各種の被塗面にインキが良
好に乗る様にせしめるものである。界面活性剤と
しては、通常の陰イオン、陽イオン、非イオン、
両性の各界面活性剤が使用でき、インキの表面張
力が後述する如く20〜38dyne/cmの範囲になる
様、その使用量を調節すれば良い。 次に、本発明インキが具備すべき物性値とし
て、表面張力は、20〜38dyne/cm、粘度は
60cps/25℃以下である。 即ち、表面張力が20dyne/cm以下では、紙、
布などに一般用マーカーとして使用された場合筆
跡が滲み易く又、38dyne/cm以上では被塗布面
が極性の低い樹脂などの場合、筆跡のレベリング
性が悪く、ハジキ易くなつてしまうからである。 又、粘度が60cps/25℃以上では、繊維ペン先、
樹脂成型ペン先からのインキ吐出が悪くなり、カ
スレる傾向が出てくる為である。 尚、上記せる成分の他に、顔料の分散を助ける
湿潤剤、分散剤、筆跡の可撓性を付与する可塑
剤、剥離性を向上させる為の剥離性付与剤、例え
ばシリコンオイルエマルジヨン、水可溶性シリコ
ン樹脂、ワツクスエマルジヨンなどが適宜少量使
用できる。 本発明の水性の筆記具用インキは、上述の成分
を溶解もしくは分散せしめインキ化した後、繊維
ペン先、樹脂成型ペン先を有する筆記具に充填し
使用される。 以下、実施例に従がい本発明を詳細に説明する
が、実施例中「部」とあるのは「重量部」を示
す。 実施例 1 ポリゾールPS(昭和高分子(株)製、ポリ酢酸ビニル
エマルジヨン、固形分50%、MFT12℃) 20部 フタルシアニンブルー(顔料) 5部 Span20(花王アトラス(株)製、非イオン界面活性
剤) 1部 水 69部 ブチルカルビトールアセテート(被膜形成助剤)
2部 ダイジツトC−30(互応化学工業(株)製、ワツクス
エマルジヨン、剥離性付与剤) 2.5部 Mis22(SCHWEGMANN社製、西独、湿潤分散
剤) 0.5部 水、湿潤分散剤中に顔料を常法にて分散せしめ
た後に、他の成分を混和し青色インキを得た。 実施例 2 プライマルAC−382(日本アクリル化学(株)製、ア
クリル酸エステルエマルジヨン、固形分50%、
MFT7℃) 25部 MA−100(三菱化成工業(株)製、カーボンブラツ
ク、顔料) 3部 NIKKOL NP−5(日光ケミカルズ(株)製、非イオ
ン界面活性剤) 1部 水 66.5部 ヘキシレングリコール(被膜形成助剤) 2部 LE−46(ユニオンカーバイド社製、シリコンオイ
ルエマルジヨン、剥離性付与剤) 2部 Disperbyk(BYK−Mallinckrodt社製、西独、湿
潤分散剤) 0.5部 実施例1と同様にして黒色インキを得た。 実施例 3 ポリゾールEVA P−1(昭和高分子(株)製、エチ
レン−酢酸ビニルエマルジヨン、固形分50%、
MFT3℃) 20部 クロノスKR−380(チタン工業(株)製、酸化チタ
ン、顔料) 15部 NIKKOL SLS(日本ケミカルズ(株)製、陰イオン
界面活性剤) 1.5部 水 63部 アデカノールSX−192(旭電化工業(株)製、湿潤分
散剤) 0.5部 実施例1と同様にして白色インキを得た。 実施例 4 ポリゾールOLX−6130−13(昭和高分子(株)製、ス
チレン−アクリル酸エステルエマルジヨン、固形
分45%、MFT0℃) 35部 クリスタルヴアイオレツト(染料) 5部 エマルボンT−20(東邦化学工業(株)製、非イオン
界面活性剤) 1.5部 水 56.5部 ダイジツトC−30 2部 水に染料を溶解せしめた後に、他の成分を混和
し青色インキを得た。 実施例1〜4で得られたインキの物性値は、表
−1に示した通りであつた。
The present invention relates to a water-based ink for writing instruments, and more specifically, the handwriting on the non-absorbing surface has the performance of strippable paint, and the ink can be ejected from a writing instrument having a fiber nib or a resin-molded nib. The present invention relates to a water-based ink for writing instruments. Conventionally, strippable paints have been made using organic solvent-soluble compositions such as ethyl cellulose, polyvinyl acetate resin, butyral resin, vinyl acetate-acrylate copolymer resin, polyvinyl acetate emulsion, butyral resin emulsion, etc. Emulsified compositions or polyvinyl alcohol aqueous solutions are known, and are used in automobiles, aircraft,
Intended for temporary surface protection of mechanical parts, metal household appliances, other ferrous and non-ferrous metal products, glass products, plastic molded products, rubber products, etc., so that these products can be completely removed immediately before use. It is a coating material made of paint, and is applied by methods such as spray painting, brush painting, or dipping, just like ordinary paints. Recently, pigments and/or dyes have been added to strippable paints to create colored strippable paints that are being used for decorative purposes such as glass windows. However, although it is possible to paint large areas using spray painting or brush painting, it has been difficult to paint fine details or fine patterns using conventional painting methods. On the other hand, when painting details or fine patterns, there are regular oil-based paint markers, but these are difficult to remove, and when erasing, it is necessary to use an organic solvent used for the ink or a
It is difficult to erase with a soluble solvent, and since an organic solvent is used, its odor and toxicity are problems. Also, there is so-called whiteboard marker ink, which is a permanent marker ink that can be erased on non-absorbent surfaces, but this makes the adhesion of handwriting to the whiteboard extremely low and is designed to be easily wiped away with cloth, paper, etc. Therefore, it was erased even by touching it with a hand or a finger, and its retention of handwriting was extremely poor. Furthermore, because the adhesion is low and the cohesive force of the handwriting itself is low, when erasing it, the eraser dust (powder) of the handwriting scatters and contaminates hands, clothes, and surroundings, and the disadvantage is that organic solvents are used. had the same odor and toxicity problems as oil-based paint markers. Therefore, the object of the present invention is to improve the retention of handwriting (paint film) on a non-absorbing surface that is odorless and toxic, and to enable it to be completely and continuously peeled off into a film at any time. Another object of the present invention is to provide an ink for a writing instrument that can be ejected from a writing instrument having a fiber nib or a resin-molded nib so as to enable detailed painting and fine painting. That is, the present invention provides an aqueous peelable coating agent comprising at least an emulsion with a minimum film forming temperature of 12° C. or lower, a dye and/or pigment, a surfactant as a surface tension modifier, and water. The gist of the present invention is an ink for writing instruments that can continuously peel off handwriting that meets the following conditions. <Conditions> ●The solid content of the emulsion is 5 to 40% by weight based on the total amount of writing instrument ink. ●Viscosity must be 60cps/25℃ or less. ●Surface tension must be 20 to 38 dyne/cm. The present invention will be explained in detail below. The emulsion used in the water-based strippable coating is a binder for the ink and exhibits the strippability of the ink, and is a known acrylic ester emulsion used as a strippable paint. Polyvinyl acetate emulsion, styrene-butadiene emulsion,
Among butyral resin emulsions, ethylene-vinyl acetate emulsions, styrene-acrylic acid ester emulsions, etc., the minimum film forming temperature (MFT) is 12 to form a continuous coating film at least at room temperature after writing. It is necessary to use a temperature below ℃. In order to maintain good handwriting (paint film) and enable continuous peeling, it is preferable that the solid content of the emulsion in the ink is high, and therefore, the emulsion used should have a low viscosity to reduce ink discharge. It is preferable if you consider it. As a result of various studies in consideration of the above points, it has been found that the solid content of the emulsion should be 5 to 40% by weight based on the total amount of ink for writing instruments. In order to further improve the film-forming properties of the emulsion, a small amount of plasticizer or film-forming aid (for example, a high-boiling solvent such as butyl carbitol, butyl carbitol acetate, hexylene glycol, etc.) may be added as appropriate. Good too. Dyes and/or pigments are used for coloring, and if the dye is a soluble one,
Pigments can be used regardless of whether they are inorganic or organic. The amount of dye and/or pigment used is preferably 3 to 30% by weight. A surfactant as a surface tension adjusting agent adjusts the surface tension of the ink and allows the ink to adhere well to various surfaces to be coated. Surfactants include ordinary anions, cations, non-ions,
Amphoteric surfactants can be used, and the amount used may be adjusted so that the surface tension of the ink falls within the range of 20 to 38 dyne/cm as described below. Next, as physical properties that the ink of the present invention should possess, the surface tension is 20 to 38 dyne/cm, and the viscosity is
60cps/25℃ or less. That is, when the surface tension is less than 20 dyne/cm, paper,
When used as a general marker on cloth, etc., the handwriting tends to smear, and if the applied surface is made of a resin with low polarity, the leveling property of the handwriting is poor and it becomes easily repelled. Also, if the viscosity is 60cps/25℃ or higher, the fiber nib,
This is because the ink ejection from the resin-molded pen tip becomes poor and tends to fade. In addition to the above ingredients, wetting agents and dispersants that help disperse pigments, plasticizers that give flexibility to handwriting, and release agents that improve release properties, such as silicone oil emulsion and water. A small amount of soluble silicone resin, wax emulsion, etc. can be used as appropriate. The aqueous writing instrument ink of the present invention is used by dissolving or dispersing the above-mentioned components to form an ink, and then filling it into a writing instrument having a fiber nib or a resin-molded nib. Hereinafter, the present invention will be described in detail according to Examples, where "parts" in the Examples indicate "parts by weight." Example 1 Polysol PS (manufactured by Showa Kobunshi Co., Ltd., polyvinyl acetate emulsion, solid content 50%, MFT 12°C) 20 parts Phthalcyanine blue (pigment) 5 parts Span20 (manufactured by Kao Atlas Co., Ltd., nonionic interface Activator) 1 part water 69 parts butyl carbitol acetate (film forming aid)
2 parts Digit C-30 (manufactured by Gooh Kagaku Kogyo Co., Ltd., wax emulsion, release agent) 2.5 parts Mis22 (manufactured by SCHWEGMANN, West Germany, wetting and dispersing agent) 0.5 parts Water, pigment in wetting and dispersing agent After dispersing in a conventional manner, other components were mixed to obtain a blue ink. Example 2 Primal AC-382 (manufactured by Nippon Acrylic Chemical Co., Ltd., acrylic ester emulsion, solid content 50%,
MFT7℃) 25 parts MA-100 (manufactured by Mitsubishi Chemical Industries, Ltd., carbon black, pigment) 3 parts NIKKOL NP-5 (manufactured by Nikko Chemicals Co., Ltd., nonionic surfactant) 1 part water 66.5 parts hexylene glycol (Film forming aid) 2 parts LE-46 (manufactured by Union Carbide, silicone oil emulsion, release agent) 2 parts Disperbyk (manufactured by BYK-Mallinckrodt, West Germany, wetting and dispersing agent) 0.5 parts Same as Example 1 A black ink was obtained. Example 3 Polysol EVA P-1 (manufactured by Showa Kobunshi Co., Ltd., ethylene-vinyl acetate emulsion, solid content 50%,
MFT3℃) 20 parts Kronos KR-380 (manufactured by Titan Kogyo Co., Ltd., titanium oxide, pigment) 15 parts NIKKOL SLS (manufactured by Nippon Chemicals Co., Ltd., anionic surfactant) 1.5 parts water 63 parts Adekanol SX-192 ( Wetting and dispersing agent (manufactured by Asahi Denka Kogyo Co., Ltd.) 0.5 parts A white ink was obtained in the same manner as in Example 1. Example 4 Polysol OLX-6130-13 (manufactured by Showa Kobunshi Co., Ltd., styrene-acrylic acid ester emulsion, solid content 45%, MFT 0°C) 35 parts Crystal Violet (dye) 5 parts Emulbon T-20 ( Nonionic surfactant (manufactured by Toho Chemical Industry Co., Ltd.) 1.5 parts Water 56.5 parts Digit C-30 2 parts After dissolving the dye in water, other components were mixed to obtain a blue ink. The physical property values of the inks obtained in Examples 1 to 4 were as shown in Table-1.

【表】 これらのインキを繊維ペン先を有する筆記具に
充填し、ガラス板、アルミ板、鉄板、ポリエチレ
ン板などの非吸収面に筆記したところ、筆跡は鮮
明で、乾燥後、手指で擦過したが、筆跡は消える
ことはなかつた。更に、2カ月後筆跡の一端にセ
ロテープを貼り付け剥したところ、容易にかつ連
続的にフイルム状になつて筆跡が剥離した。又、
紙に筆記したところ、滲むことはなかつた。更
に、水が主成分であるため、臭気、毒性もなかつ
た。 尚、市販のストリツパブルペイントを繊維ペン
先を有する筆記具に充填したところ、ペイントは
吐出しなかつた。又、市販の油性顔料タイプのホ
ワイトボード用マーカーで非吸収面に筆記し、乾
燥後、手指で擦過したところ、筆跡が消えてしま
つた。 以上のように本発明の水性の筆記具用インキ
は、有機溶剤による臭気、毒性がなく、非吸収面
に筆記した筆跡の保持性能が良く、容易にかつ連
続的に剥離可能なものである。
[Table] When these inks were filled into a writing instrument with a fiber nib and written on a non-absorbent surface such as a glass plate, aluminum plate, iron plate, or polyethylene plate, the handwriting was clear and after drying, it did not rub with the fingers. , the handwriting never disappeared. Furthermore, when cellophane tape was attached to one end of the handwriting and removed after two months, the handwriting easily and continuously formed into a film and peeled off. or,
When I wrote it down on paper, it did not bleed. Furthermore, since water is the main component, there is no odor or toxicity. Incidentally, when a writing instrument having a fiber nib was filled with commercially available strippable paint, the paint did not come out. Also, when I wrote on a non-absorbent surface with a commercially available oil-based pigment type whiteboard marker and rubbed it with my fingers after drying, the handwriting disappeared. As described above, the water-based ink for writing instruments of the present invention has no odor or toxicity due to organic solvents, has good retention performance for handwriting written on a non-absorbing surface, and can be easily and continuously peeled off.

Claims (1)

【特許請求の範囲】 1 水性可剥性被覆剤に使用される最低造膜温度
が12℃以下のエマルジヨンと、染料及び/又は顔
料と、表面張力調整剤として界面活性剤と、水と
から少なくともなる筆記具用インキであつて、下
記条件を有する筆跡が連続剥離可能な筆記具用イ
ンキ。 <条件> ●エマルジヨンの固形分が筆記具用インキに対し
て5〜40重量%であること。 ●粘度が60cps/25℃以下であること。 ●表面張力が20〜38dyne/cmであること。
[Scope of Claims] 1. At least an emulsion with a minimum film-forming temperature of 12°C or less used in an aqueous peelable coating, a dye and/or pigment, a surfactant as a surface tension adjusting agent, and water. 1. An ink for writing instruments, which is capable of continuously peeling handwriting and having the following conditions. <Conditions> ●The solid content of the emulsion is 5 to 40% by weight based on the writing instrument ink. ●Viscosity must be 60cps/25℃ or less. ●Surface tension must be 20 to 38 dyne/cm.
JP59035747A 1984-02-27 1984-02-27 Ink for writing utensil Granted JPS60179478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59035747A JPS60179478A (en) 1984-02-27 1984-02-27 Ink for writing utensil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59035747A JPS60179478A (en) 1984-02-27 1984-02-27 Ink for writing utensil

Publications (2)

Publication Number Publication Date
JPS60179478A JPS60179478A (en) 1985-09-13
JPH0541673B2 true JPH0541673B2 (en) 1993-06-24

Family

ID=12450407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59035747A Granted JPS60179478A (en) 1984-02-27 1984-02-27 Ink for writing utensil

Country Status (1)

Country Link
JP (1) JPS60179478A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07166114A (en) * 1993-10-12 1995-06-27 Orient Chem Ind Ltd Correcting solution of coloring recording material
KR20030027147A (en) * 2001-09-13 2003-04-07 동아교재 주식회사 Liquid Stickiness Composition and Writting Set Using The Same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131679A (en) * 1979-11-19 1981-10-15 Gillette Co Erasable writing medium composition
JPS5765766A (en) * 1980-10-07 1982-04-21 Adogaa Kogyo Kk Ink composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131679A (en) * 1979-11-19 1981-10-15 Gillette Co Erasable writing medium composition
JPS5765766A (en) * 1980-10-07 1982-04-21 Adogaa Kogyo Kk Ink composition

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