JPH0582840B2 - - Google Patents
Info
- Publication number
- JPH0582840B2 JPH0582840B2 JP60039711A JP3971185A JPH0582840B2 JP H0582840 B2 JPH0582840 B2 JP H0582840B2 JP 60039711 A JP60039711 A JP 60039711A JP 3971185 A JP3971185 A JP 3971185A JP H0582840 B2 JPH0582840 B2 JP H0582840B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- water
- composition
- cps
- filled
- 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
- 239000000203 mixture Substances 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003349 gelling agent Substances 0.000 claims description 8
- 230000003449 preventive effect Effects 0.000 claims description 7
- -1 pentaerythritol fatty acid esters Chemical class 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 230000002265 prevention Effects 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 229910002012 Aerosil® Inorganic materials 0.000 description 6
- 229920001083 polybutene Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 229940099259 vaseline Drugs 0.000 description 3
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229940057995 liquid paraffin Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229940049964 oleate Drugs 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- ZJLATTXAOOPYRU-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(CO)(CO)CO ZJLATTXAOOPYRU-UHFFFAOYSA-N 0.000 description 1
- VURIDHCIBBJUDI-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO VURIDHCIBBJUDI-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 239000010956 nickel silver Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920006316 polyvinylpyrrolidine Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Description
（産業上の利用分野）
本発明は粘度50〜2000CPS（25℃において）の
水性インキを使用したボールペンにおいて、その
インキ収容管内におけるインキ後端（ペン先方向
を前方とする）に備えられたインキ逆流防止体組
成物の改良に関し、特にインキ収容管内面への付
着を極力防止した水性ボールペン用インキ逆流防
止体組成物に関する。
（従来の技術とその問題点）
従来から油性インキ使用のボールペンなどに使
用されている油性インキは、その粘度が数千〜１
万CPSといつた如く非常に高いものであるため、
これを収容するインキ収容管の内径が2.8（mm）以
下の場合は必ずしもインキ逆流防止体組成物を具
備せしめる必要が無いが、その内径が2.8（mm）以
上の場合は、筆記によるインキの消費に従いペン
先方向へ確実に前進し、且つ、筆記具に衝撃が加
わつた際、或いは高温の環境下に置かれた際には
インキ収容管後端よりのインキ洩れが十分に懸念
されるためこれを防止し得るようなワセリン、シ
リコーングリース、シリコーンオイル、または流
動パラフインとワセリンとの混合物などよりなる
インキ逆流防止体組成物をインキ収容管内のイン
キ後端（ペン先方向を前方とする）に備える必要
があることが知られている。
かようなインキ逆流防止体組成物を具備した油
性ボールペンは、そのインキが高粘性であること
に起因して、筆記に際してはインキが大気圧或い
は自重を利用することにより過不足なくペン先へ
導出され、インキ逆流防止体組成物もそのインキ
の消費に伴つて確実にインキ収容管内面に付着す
ることなくインキに追従して、インキ収容管後端
からのインキ洩れを防止できるなどその本来の目
的を達成し得るものであるが、この様なインキ逆
流防止体組成物を油性インキに比して低粘度であ
る粘度50〜2000CPS位の水性インキを使用したボ
ールペンにそのまま利用すると以下の様な問題を
招来することになる。
即ち、低粘度の水性インキを使用したボールペ
ンのペン先におけるインキの吐出量は、一般の油
性のそれの値である約0.03（ｇ／200m）に比較し
て、約0.2（ｇ／200m）といつた如く非常に大き
なものとなり、それ故水性ボールペンにおけるイ
ンキ逆流防止体組成物のインキに対する追従速度
も自ずと速いものとなつている。而してこのイン
キ逆流防止体組成物はインキの消費に速やかに対
応して確実に追従することが要求されるところで
あるが、実際の処、このインキ逆流防止体組成物
はインキの消費速度に追従不可能となり、その結
果油性のものと比べて相対的にインキ収容管内面
に付着し易くなり、インキ収容管内における減圧
によるインキ吐出不良を招くばかりか、インキ逆
流防止体組成物には除々に欠損を生じ、減少し
て、遂にはそのものすら消失したしまつて、本来
の目的を果せなくなつてしまうという問題であ
る。
（問題点を解決するための手段）
本発明者等は上述した事情に鑑み、粘度が50〜
2000CPSの水性インキを使用したボールペンにお
けるこの様なインキ逆流防止体組成物のインキ収
容管内面への付着を防止すべく種々の添加剤につ
いて鋭意研究を重ねた結果炭化水素類より選ばれ
た難揮発性有機液体或いは不揮発性有機液体を基
剤とし、これにゲル化剤と、ペンタエリスリトー
ル脂肪酸エステルを添加してなるものが最適であ
ることを見い出し、遂に本発明を完成したもので
ある。
即ち、本発明は、インキ収容管内に25℃におけ
る粘度が50〜2000CPSである水性インキを充填
し、この水性インキの後端に接するよう充填する
水性ボールペン用のインキ逆流防止体組成物であ
つて、該インキ逆流防止体組成物は炭化水素類よ
り選ばれた難揮発性有機液体或いは不揮発性有機
液体を基剤とし、これにゲル化剤と、ペンタエリ
スリトール脂肪酸エステルの１種もしくは２種以
上が添加されてなることを特徴とする水性ボール
ペン用インキ逆流防止体組成物を要旨するもので
ある。
本発明において使用される基剤たる炭化水素類
より選ばれた難揮発性有機液体或いは不揮発性有
機液体としては、ポリブテンLV−100、同HV−
15、同HV−35（以上、日本石油(株)製）、流動パラ
フイン、αオレフインオリゴマー、スピンドル
油、ワセリン等が挙げられ、これらは１種もしく
は２種以上混合して使用可能である。
また本発明で使用されるゲル化剤としては、ア
エロジル（日本アエロジル(株)製）などの微粒子シ
リカ、デイスパロン305（楠本化成(株)製）などの水
添ヒマシ油系のもの、ソロイド、レオパールKE
（三晶(株)製）などのセルロース系のもの、更に金
属セツケン類、ベントナイトなどが挙げられる。
ゲル化剤として、例えば表面にシラノール基を有
し、その一次粒径が数mμ〜50mμである微粒子シ
リカを使用すれば、インキ逆流防止体組成物とし
ての透明感が醸し出せ、インキ収容管自体も透明
のものであれば外観上見映えの良いものが得られ
る。
これらゲル化剤の配合割合が、１〜20重量％が
好ましい。１重量％以下であると、インキ逆流防
止体組成物としてのゲル化強度が弱くなつて、イ
ンキが逆流し易くなり、また20重量％以上である
と、ゲル化強度が強すぎてインキに対する追従性
が悪くなる傾向にある。
次に本発明の特徴点でもあるペンタエリスリト
ール脂肪酸エステルについて述べる。
添加剤としてのペンタエリスリトール脂肪酸エ
ステルは、前述した如く、インキ逆流防止体組成
物のインキ収容管内面への付着を防止するために
加えられるもので、具体的には、ペンタエリスリ
トールラウレート、ペンタエリスリトールステア
レート、ペンタエリスリトールオレエート、ペン
タエリスリトールパルミテート等が挙げられ、こ
れらも同様に単独もしくは混合して使用可能であ
る。
尚、本発明によるインキ逆流防止体組成物の使
用対象となる水性インキは、その粘度が25℃にお
いて50〜2000CPSであることが好ましい。これは
本発明者等が、従来の油性ボールペンのもつ長所
である構造的に簡単な点と従来の数CPSという極
めて低粘度のインキを使用した水性ボールペンの
もつ長所である瑞々しい鮮明な筆跡が得られる点
の両方を兼ね備えたボールペンを得るべく種々検
討を重ねた末に得るに至つた一つの知見からくる
ものである。
（実施例）
以下、本発明を実施例により更に詳細に説明す
るが、実施例中「部」とあるのは「重量部」を示
す。
実施例 １
ポリブテンHV−15（日本石油(株)製） 94.6部
アエロジルR972（ゲル化剤、日本アエロジル(株)
製） 5.0部
ペンタエリスリトールステアレート 0.4部
以上の配合物をニーダーに入れ、加熱撹拌を２
〜３時間行ない、水性ボールペン用インキ逆流防
止体組成物を得た。
実施例 ２
ポリブテンLV−100（日本石油(株)製） 93部
アエロジルR972（ゲル化剤、日本アエロジル(株)
製） 6.0部
ペンタエリスリトールオレエート 1.0部
以上の配合物を実施例１と同様の方法により水
性ボールペン用インキ逆流防止体組成物を得た。
比較例
実施例１におけるペンタエリスリトールステア
レートを除去した以外は全て実施例１と同様にな
したものを比較例とした。
（発明の効果）
以上実施例１，２、比較例で得られたインキ逆
流防止体組成物各々を、内部に下記組成物よりな
る粘度250CPSの水性インキを充填し、一端に洋
白のボールペンチツプを取り付けたインキ収容管
（材質：ポリプロピレン、内径：3.2mm）内のイン
キ後端（ペン先方向を前方とする）に充填し、筆
記荷重100ｇ、筆記角度70゜、筆記速度７cm／Sec
の条件で螺線筆記を行なつた。
結果は下表のとおりである。
(Industrial Application Field) The present invention relates to a ballpoint pen that uses water-based ink with a viscosity of 50 to 2000 CPS (at 25°C). The present invention relates to improvements in backflow preventer compositions, and particularly relates to an ink backflow preventer composition for aqueous ballpoint pens that prevents adhesion to the inner surface of an ink storage tube as much as possible. (Conventional technology and its problems) The oil-based ink traditionally used in ballpoint pens, etc., has a viscosity of several thousand to 1.
Because it is extremely expensive at 10,000 CPS,
If the inner diameter of the ink storage tube that accommodates this is 2.8 (mm) or less, it is not necessarily necessary to provide an ink backflow preventer composition, but if the inner diameter is 2.8 (mm) or more, ink consumption due to writing will be reduced. Therefore, when the writing instrument is subjected to impact or placed in a high temperature environment, there is a sufficient concern that ink may leak from the rear end of the ink storage tube, so this is recommended. An ink backflow prevention composition made of vaseline, silicone grease, silicone oil, or a mixture of liquid paraffin and vaseline that can prevent backflow must be provided at the rear end of the ink storage tube (with the direction of the pen tip facing forward). It is known that there is. Due to the high viscosity of the ink in an oil-based ballpoint pen equipped with such an ink backflow prevention composition, when writing, the ink is drawn out to the pen tip in just the right amount by using atmospheric pressure or its own weight. The original purpose of the ink backflow prevention body composition is to be able to follow the ink without adhering to the inner surface of the ink storage tube as the ink is consumed, thereby preventing ink from leaking from the rear end of the ink storage tube. However, if such an ink backflow prevention composition is used as is in a ballpoint pen that uses water-based ink with a viscosity of about 50 to 2000 CPS, which is lower than oil-based ink, the following problems will occur. will be invited. In other words, the amount of ink ejected from the nib of a ballpoint pen using low-viscosity water-based ink is approximately 0.2 (g/200m), compared to approximately 0.03 (g/200m) for general oil-based ink. As a result, the ink backflow prevention composition in a water-based ballpoint pen naturally follows the ink at a high speed. Therefore, this ink backflow preventer composition is required to promptly respond to ink consumption and reliably follow it, but in reality, this ink backflow preventer composition does not respond to the ink consumption rate. As a result, the ink tends to adhere to the inner surface of the ink storage tube relatively easily compared to oil-based ink, which not only causes ink discharge failure due to reduced pressure in the ink storage tube, but also gradually affects the ink backflow prevention composition. The problem is that it becomes defective, decreases, and finally disappears, making it impossible to fulfill its original purpose. (Means for solving the problem) In view of the above-mentioned circumstances, the present inventors have determined that the viscosity of
In order to prevent the ink backflow preventive composition from adhering to the inner surface of the ink storage tube in ballpoint pens using 2000 CPS water-based ink, we have conducted extensive research on various additives, and as a result we have developed a non-volatile additive selected from hydrocarbons. The present invention was finally completed based on the discovery that a gelling agent and a pentaerythritol fatty acid ester are most suitable for use in a liquid organic liquid or a nonvolatile organic liquid as a base. That is, the present invention provides an ink backflow preventer composition for a water-based ballpoint pen, in which an ink storage tube is filled with a water-based ink having a viscosity of 50 to 2000 CPS at 25°C, and the composition is filled so as to be in contact with the rear end of the water-based ink. The ink backflow preventive composition is based on a non-volatile organic liquid or a non-volatile organic liquid selected from hydrocarbons, and contains a gelling agent and one or more pentaerythritol fatty acid esters. The present invention summarizes an ink backflow preventer composition for a water-based ballpoint pen, which is characterized in that it contains the following: Examples of non-volatile organic liquids or non-volatile organic liquids selected from hydrocarbons used in the present invention include polybutene LV-100 and polybutene HV-100.
15, HV-35 (manufactured by Nippon Oil Co., Ltd.), liquid paraffin, α-olefin oligomer, spindle oil, vaseline, etc., and these can be used alone or in combination of two or more. In addition, the gelling agents used in the present invention include fine particle silica such as Aerosil (manufactured by Nippon Aerosil Co., Ltd.), hydrogenated castor oil-based ones such as Disparon 305 (manufactured by Kusumoto Kasei Co., Ltd.), Soroid, and Rheopar. K.E.
Examples include cellulose-based materials such as (manufactured by Sansho Co., Ltd.), metal soaps, bentonite, and the like.
If fine particle silica, which has a silanol group on the surface and has a primary particle size of several microns to 50 microns, is used as the gelling agent, the ink backflow preventive composition will have a transparent feel, and the ink storage tube itself will be transparent. If it is also transparent, a good-looking product can be obtained. The blending ratio of these gelling agents is preferably 1 to 20% by weight. If it is less than 1% by weight, the gelling strength of the ink backflow preventive composition will be weak and the ink will easily flow back, and if it is more than 20% by weight, the gelling strength will be too strong and it will not follow the ink. It tends to get worse. Next, pentaerythritol fatty acid ester, which is also a feature of the present invention, will be described. As mentioned above, the pentaerythritol fatty acid ester as an additive is added to prevent the ink backflow prevention composition from adhering to the inner surface of the ink storage tube.Specifically, pentaerythritol laurate, pentaerythritol Examples include stearate, pentaerythritol oleate, pentaerythritol palmitate, and the like, and these can also be used alone or in combination. The aqueous ink to which the ink backflow preventer composition of the present invention is used preferably has a viscosity of 50 to 2000 CPS at 25°C. The inventors of the present invention have identified the advantage of conventional oil-based ballpoint pens, which are structurally simple, and the advantages of conventional water-based ballpoint pens, which use an extremely low viscosity ink of several CPS, for fresh, clear handwriting. This result comes from the knowledge that we have obtained after conducting various studies in order to create a ballpoint pen that has both of the above-mentioned features. (Example) Hereinafter, the present invention will be explained in more detail with reference to Examples, in which "parts" indicate "parts by weight". Example 1 Polybutene HV-15 (manufactured by Nippon Oil Co., Ltd.) 94.6 parts Aerosil R972 (gelling agent, Nippon Aerosil Co., Ltd.)
) 5.0 parts Pentaerythritol stearate 0.4 parts Put the above mixture into a kneader and heat and stir for 2
This was carried out for ~3 hours to obtain an ink backflow preventer composition for an aqueous ballpoint pen. Example 2 Polybutene LV-100 (manufactured by Nippon Oil Co., Ltd.) 93 parts Aerosil R972 (gelling agent, Nippon Aerosil Co., Ltd.)
6.0 parts pentaerythritol oleate 1.0 parts An ink backflow preventer composition for an aqueous ballpoint pen was obtained using the above formulation in the same manner as in Example 1. Comparative Example A comparative example was prepared in the same manner as in Example 1 except that the pentaerythritol stearate in Example 1 was removed. (Effects of the Invention) Each of the ink backflow prevention body compositions obtained in Examples 1, 2 and Comparative Examples was filled with an aqueous ink having a viscosity of 250 CPS made of the following composition, and a nickel silver ballpoint pen tip was inserted at one end. Fill the ink storage tube (material: polypropylene, inner diameter: 3.2 mm) with ink at the rear end (with the pen tip facing forward), writing load 100 g, writing angle 70°, writing speed 7 cm/Sec.
Spiral writing was performed under these conditions. The results are shown in the table below.
【表】
（水性インキの組成）
ウオーターブラツク 187L（オリエント化学工
業(株)製） 8.0部
ポリビニルピロリドンＫ−90 10部
エチレングリコール 15部
サンニツクスPP−400（潤滑材、三洋化成(株)製）
10部
水 57部
以上の説明からも明らかな如く、本発明におけ
る水性ボールペン用インキ逆流防止体組成物によ
れば、その粘度が50〜2000CPSの水性インキの使
用に対して、インキの消費減量に伴つてそれがイ
ンキ収容管内面に付着することなく確実に追従し
て行きインキ吐出不良を招くといつたことがな
く、途中でインキ逆流防止体組成物が消失したり
することもないもので、優れた効果を奏するもの
である。[Table] (Composition of water-based ink) Water black 187L (manufactured by Orient Chemical Co., Ltd.) 8.0 parts Polyvinylpyrrolidone K-90 10 parts Ethylene glycol 15 parts Sanix PP-400 (lubricant, manufactured by Sanyo Chemical Co., Ltd.)
10 parts Water 57 parts As is clear from the above description, the ink backflow preventer composition for water-based ballpoint pens of the present invention reduces ink consumption when using water-based ink with a viscosity of 50 to 2000 CPS. At the same time, the ink flows reliably without adhering to the inner surface of the ink storage tube, causing ink discharge failure, and the ink backflow prevention composition does not disappear during the process. It has excellent effects.
Claims (1)
2000CPSである水性インキを充填し、この水性イ
ンキの後端に接するよう充填する水性ボールペン
用のインキ逆流防止体組成物であつて、該インキ
逆流防止体組成物は炭化水素類より選ばれた難揮
発性有機液体或いは不揮発性有機液体を基剤と
し、これにゲル化剤と、ペンタエリスリトール脂
肪酸エステルの１種もしくは２種以上が添加され
てなることを特徴とする水性ボールペン用インキ
逆流防止体組成物。1 The viscosity at 25℃ in the ink storage tube is 50~
An ink backflow preventive composition for a water-based ballpoint pen, which is filled with a water-based ink of 2000 CPS and filled so as to be in contact with the rear end of the water-based ink, the ink backflow preventive composition being filled with a water-based ink of 2000 CPS, the ink backflow preventive composition being filled with a water-based ink of 2000 CPS, and filled with a water-based ink so as to be in contact with the rear end of the water-based ink. An ink backflow preventer composition for an aqueous ballpoint pen, characterized in that it is based on a volatile organic liquid or a non-volatile organic liquid, to which a gelling agent and one or more types of pentaerythritol fatty acid esters are added. thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039711A JPS61200187A (en) | 1985-02-28 | 1985-02-28 | Back-flow prevention aqueous ink composition for ball point pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039711A JPS61200187A (en) | 1985-02-28 | 1985-02-28 | Back-flow prevention aqueous ink composition for ball point pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61200187A JPS61200187A (en) | 1986-09-04 |
| JPH0582840B2 true JPH0582840B2 (en) | 1993-11-22 |
Family
ID=12560571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60039711A Granted JPS61200187A (en) | 1985-02-28 | 1985-02-28 | Back-flow prevention aqueous ink composition for ball point pen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61200187A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2677734B2 (en) * | 1992-03-25 | 1997-11-17 | 三菱鉛筆株式会社 | Aqueous ballpoint pen ink volatilization prevention composition |
| JP3105711B2 (en) * | 1993-08-31 | 2000-11-06 | 三菱鉛筆株式会社 | Ink followers for water-based ballpoint pens that use both gels and solids |
| JP2002052887A (en) | 2000-08-08 | 2002-02-19 | Mitsubishi Pencil Co Ltd | Ink follower composition for oily ball-point pen |
-
1985
- 1985-02-28 JP JP60039711A patent/JPS61200187A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61200187A (en) | 1986-09-04 |
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