JPH04342776A - Ethanol-based gold ink composition - Google Patents
Ethanol-based gold ink compositionInfo
- Publication number
- JPH04342776A JPH04342776A JP3144094A JP14409491A JPH04342776A JP H04342776 A JPH04342776 A JP H04342776A JP 3144094 A JP3144094 A JP 3144094A JP 14409491 A JP14409491 A JP 14409491A JP H04342776 A JPH04342776 A JP H04342776A
- Authority
- JP
- Japan
- Prior art keywords
- ethanol
- ink composition
- resin
- gold ink
- 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.)
- Granted
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000010931 gold Substances 0.000 title claims abstract description 12
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 14
- 239000010951 brass Substances 0.000 claims abstract description 14
- 150000002576 ketones Chemical class 0.000 claims abstract description 13
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 230000006866 deterioration Effects 0.000 abstract description 6
- 231100000053 low toxicity Toxicity 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 30
- 239000002904 solvent Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 230000001988 toxicity Effects 0.000 description 5
- 231100000419 toxicity Toxicity 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000772600 Norion Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000008431 aliphatic amides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、マーキングペン、筆な
どに適用されて、金属光沢のある色調を与える金用イン
キ組成物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gold ink composition that is applied to marking pens, brushes, etc. and provides a metallic luster tone.
【０００２】0002
【従来の技術】従来より、油性インキとしては真鍮など
の金属粉を有機溶剤ベースのビヒクル中に分散したメタ
リック調のインキは良くしられているが、キシレンなど
の刺激性の強い有機溶剤を使用しているため、その臭気
や溶剤蒸気による害、また樹脂板の種類によつて筆記表
面を侵し易いなどの点が問題となっている。一方、その
有機溶剤による悪作用のないインキとして水性インキが
研究されているが、金属と水や他の添加剤との反応によ
り経時的に劣化してしまうことや、水の蒸発が遅いため
特に非吸収性の筆記面に描いた場合に乾燥して描線が定
着するまでに時間がかかるという問題があった。また、
両方の溶剤系に共通の問題として真鍮などの金属粉のイ
ンキは、比重が大きいために沈降が早く、硬い沈降物を
作ることから、筆記具のインキ溜めにインキ攪拌用のボ
ールなどを入れて沈降しても再攪拌の可能な構造をとっ
ているにもかかわらず、均一なインキの流出を困難なも
のにするという問題があった。[Prior Art] Metallic inks in which brass or other metal powder is dispersed in an organic solvent-based vehicle have been well known as oil-based inks, but they use highly irritating organic solvents such as xylene. As a result, there are problems with the odor and the harmful effects of solvent vapor, and the fact that depending on the type of resin board, it tends to corrode the writing surface. On the other hand, water-based inks are being researched as inks that do not have the negative effects of organic solvents, but they deteriorate over time due to reactions between metals and water and other additives, and water evaporates slowly. There is a problem in that when drawing on a non-absorbent writing surface, it takes time for the drawn lines to dry and become fixed. Also,
A common problem with both types of solvents is that ink made from metal powder such as brass has a high specific gravity, so it settles quickly and forms a hard sediment. Despite having a structure that allows for re-stirring, there is a problem in that it is difficult to uniformly flow out the ink.
【０００３】0003
【発明が解決しようとする課題】本発明は従来の金イン
キに対する問題点を解決するためのもので、嫌な臭いや
毒性が少なく、多くの筆記面に対する筆記性が良好で、
溶剤と着色剤などと反応して硬い沈降物やガスの発生な
どによる劣化の極めて起こりにくい金用インキ組成物を
提供することを目的とする。[Problems to be Solved by the Invention] The present invention is intended to solve the problems with conventional gold ink.It has little unpleasant odor and toxicity, and has good writing properties on many writing surfaces.
The purpose of the present invention is to provide a gold ink composition that is extremely unlikely to deteriorate due to the generation of hard sediments or gases due to reaction with solvents, colorants, etc.
【０００４】0004
【課題を解決するための手段】本発明者は、上記の課題
を解決するため種々検討を重ねた結果、着色剤として真
鍮粉、溶剤としてエタノールを主成分として含む溶剤を
用い、また、分散剤としてアルデヒド樹脂及び／又はケ
トン樹脂を用いることにより、上記の目的を達成するこ
とを見出し、本発明を完成するに至った。[Means for Solving the Problems] As a result of various studies to solve the above problems, the present inventor used brass powder as a coloring agent, a solvent containing ethanol as a main component as a solvent, and a dispersant. The inventors have discovered that the above object can be achieved by using an aldehyde resin and/or a ketone resin as a resin, and have completed the present invention.
【０００５】本発明の金用インキ組成物は、真鍮粉、エ
タノール、およびアルデヒド樹脂、ケトン樹脂またはア
ルデヒト樹脂とケトン樹脂を含有してなるエタノール性
であることを特徴とする。The gold ink composition of the present invention is characterized by being ethanolic and containing brass powder, ethanol, and an aldehyde resin, a ketone resin, or an aldehyde resin and a ketone resin.
【０００６】本発明のインキ組成物に用いる真鍮粉は、
市販品の真鍮粉を用いることができるが、平均粒径１５
μｍ以下のものが好ましい。平均粒径が１５μｍ以上だ
と筆記に用いる繊維芯などの細管を通過しにくくなるた
めである。含有量は、特に制限はなく所望の色相、濃度
に適した量であれば良いが、好ましくは１０〜５０重量
％である。[0006] The brass powder used in the ink composition of the present invention is
Commercially available brass powder can be used, but the average particle size is 15
Preferably, the thickness is less than μm. This is because if the average particle diameter is 15 μm or more, it becomes difficult to pass through thin tubes such as fiber cores used for writing. The content is not particularly limited as long as it is suitable for the desired hue and density, but is preferably 10 to 50% by weight.
【０００７】本発明のインキ組成物に用いるエタノール
は、溶剤の主成分となり、溶剤全部の９５％以上含むの
が好ましく、比較的毒性が少なく、インキの速乾性に効
果を示す。他の溶剤をエタノールの白化防止剤、筆記部
の乾燥抑制剤としてや分散を安定させる目的などで少量
含有しても構わない。その溶剤としてプロピルアルコー
ル、ベンジルアルコール、乳酸エチルなどをあげること
ができる。Ethanol used in the ink composition of the present invention is the main component of the solvent, preferably contains 95% or more of the total solvent, has relatively little toxicity, and is effective in quick drying the ink. A small amount of other solvents may be included for the purpose of preventing whitening of ethanol, suppressing drying of the writing area, or stabilizing dispersion. Examples of the solvent include propyl alcohol, benzyl alcohol, and ethyl lactate.
【０００８】本発明のインキ組成物に用いるアルデヒド
樹脂とケトン樹脂は、真鍮粒子表面を劣化させるような
反応やエタノールと真鍮の反応によるガスの発生も抑制
し安定に分散させるものであり、着色剤の分散剤として
の効果を示す。具体例としてはＢＡＳＦ社製：ラロパー
ルＡ１０１、ラロパールＡ８１、荒川化学工業社製：ケ
トンレジンＫ９０、日立化成工業製：ハイラック１１０
Ｈなどが挙げられる。その含有量は真鍮粉など顔料分に
対して１０重量％以上が望ましく、１０重量％未満だと
充分な分散性をえられない。The aldehyde resin and ketone resin used in the ink composition of the present invention inhibit reactions that degrade the surface of brass particles and the generation of gas due to the reaction between ethanol and brass, and are stably dispersed. shows its effectiveness as a dispersant. Specific examples include BASF: Laropal A101, Laropal A81, Arakawa Chemical Co., Ltd.: Ketone Resin K90, Hitachi Chemical: Hylac 110.
Examples include H. The content is preferably 10% by weight or more based on the pigment such as brass powder, and if it is less than 10% by weight, sufficient dispersibility cannot be obtained.
【０００９】本発明のインキ組成物にあっては、上述し
た各成分以外に、増粘剤（粘度調整剤）、顔料、染料な
どの一般的な添加物を必要に応じて適宜配合しても差し
支えない。In the ink composition of the present invention, in addition to the above-mentioned components, general additives such as thickeners (viscosity modifiers), pigments, and dyes may be added as appropriate. No problem.
【００１０】本発明のインキ組成物において、アルデヒ
ド樹脂および／またケトン樹脂以外のものを分散剤とし
て用いると主溶剤であるエタノールが油性溶剤と水との
中間的構造のため分散が困難であると同時に金属粒子と
エタノールあるいは金属粒子と分散剤との相互作用によ
り経時劣化の問題が生じてしまう。しかし、本発明に使
用するアルデヒド樹脂及び／又はケトン樹脂を添加する
と真鍮粒子と樹脂の相互作用などによるインキの経時劣
化を引き起こすことなしに真鍮粒子を分散することが可
能となる。その理由は定かではないが、粒子と樹脂の吸
着力およびエタノールと樹脂の親和力に対し、アルデヒ
ド樹脂とケトン樹脂が適切な分子構造を有しており分散
安定性を向上させ、要求されるインキ性能を安定させる
ためと考えられる。In the ink composition of the present invention, if a dispersant other than aldehyde resin and/or ketone resin is used, dispersion may be difficult because ethanol, the main solvent, has an intermediate structure between an oily solvent and water. At the same time, the problem of deterioration over time occurs due to the interaction between the metal particles and ethanol or the metal particles and the dispersant. However, when the aldehyde resin and/or ketone resin used in the present invention is added, it becomes possible to disperse the brass particles without causing deterioration of the ink over time due to interactions between the brass particles and the resin. The reason for this is not clear, but aldehyde resins and ketone resins have appropriate molecular structures for the adsorption power between particles and resin and the affinity between ethanol and resin, improving dispersion stability and achieving the required ink performance. This is thought to be to stabilize the
【００１１】[0011]
【実施例】本発明のインキ組成物を実施例と比較例にて
説明する。実施例、比較例で得られたメタリックカラー
用インキの性能はつぎの方法で評価した。
臭い・毒性：各溶剤系の臭い・毒性を対比比較。
筆 記 性：描線筆記後の被筆記物の状態を目視に
て観察。
乾 燥 性：インキを筆記具に仕立て、筆記した描
線の乾燥するまでの時間を比較（２５℃，６５％）。
分 散 性：インキの初期の分散状態を観察。
分散安定性：インキを長時間放置（室温）した後の顔料
の沈降状態の観察。
インキ経時劣化：インキを５０℃恒温槽中に放置した時
のガスの発生や色相の変化等の劣化の度合を評価。
それぞれの性能の評価は、特に良好は◎、良好は○、や
や劣る△、劣るは×で示した。[Examples] The ink composition of the present invention will be explained using Examples and Comparative Examples. The performance of the metallic color inks obtained in Examples and Comparative Examples was evaluated by the following method. Odor/toxicity: A comparison of the odor/toxicity of each solvent system. Writability: Visually observe the condition of the object to be written after drawing lines. Drying performance: Compare the time it takes for a drawn line to dry using ink as a writing instrument (25°C, 65%). Dispersibility: Observe the initial dispersion state of the ink. Dispersion stability: Observation of the sedimentation state of the pigment after the ink is left to stand for a long time (at room temperature). Ink deterioration over time: Evaluate the degree of deterioration such as gas generation and color change when ink is left in a constant temperature bath at 50°C. The evaluation of each performance was shown as ◎ for particularly good, ◯ for good, △ for slightly poor, and × for poor.
【００１２】（実施例１）
・ブロンズ粉（Ｎｏ．７７７０、福田金属箔工業（
株）製） ２０．０（部） ・アルデヒド
樹脂（ラロパールＡ１０１、ＢＡＳＦ（株）製）
３０．０ ・エタノール
５０．０上記組成をかくはん型混合機に
て４０分間混合分散して金色のエタノール性金用インキ
組成物を調製した。性能評価を表１に示す。(Example 1) - Bronze powder (No. 7770, Fukuda Metal Foil Industry Co., Ltd.)
(manufactured by BASF Corporation) 20.0 (parts) - Aldehyde resin (Laropar A101, manufactured by BASF Corporation)
30.0 ・Ethanol
50.0 A golden ethanol-based gold ink composition was prepared by mixing and dispersing the above composition for 40 minutes using a stirring mixer. Performance evaluation is shown in Table 1.
【００１３】（実施例２）
・ブロンズ粉（Ｎｏ．７７７０、福田金属箔工業（
株）製） ２０．０（部） ・アルデヒド
樹脂（ラロパールＡ１０１、ＢＡＳＦ（株）製）
５．０ ・ケトン樹脂（ハイラック１１０
Ｈ、日立化成工業（株）製） ２０．０ ・エタノ
ール
５５．０上記
組成を実施例１と同様にして、金色のエタノール性金用
インキ組成物を調製した。性能評価を表１に示す。(Example 2) - Bronze powder (No. 7770, Fukuda Metal Foil Industry Co., Ltd.)
(manufactured by BASF Corporation) 20.0 (parts) - Aldehyde resin (Laropar A101, manufactured by BASF Corporation)
5.0 Ketone resin (Hilac 110
H, manufactured by Hitachi Chemical Co., Ltd.) 20.0 ・Ethanol
55.0 A golden ethanol-based gold ink composition was prepared using the same composition as in Example 1. Performance evaluation is shown in Table 1.
【００１４】（比較例１）
・ブロンズ粉（Ｎｏ．７７７０、福田金属箔工業（
株）製） ２０．０（部） ・クマロン樹
脂
３０．０ （
日鉄クマロン Ｖ−１２０、日鉄化学工業（株）製）
・脂肪族アミド
０．２ ・キシレン
５３．０ ・酢酸ｎブチル
２０．０ ・防錆剤（キレスライト，
Ｗ−９，キレスト化学） ０．０１
上記組成を実施例１と同様にして金用インキ組成物を調
製した。性能評価を表１に示す。(Comparative Example 1) - Bronze powder (No. 7770, Fukuda Metal Foil Industry (
Co., Ltd.) 20.0 (parts) ・Kumaron resin
30.0 (
Nippon Steel Kumaron V-120, manufactured by Nippon Steel Chemical Industry Co., Ltd.)
・Aliphatic amide
0.2 ・Xylene
53.0 ・n-butyl acetate
20.0 - Rust preventive agent (killeslite,
W-9, Chrest Chemical) 0.01
A gold ink composition was prepared using the same composition as in Example 1. Performance evaluation is shown in Table 1.
【００１５】（比較例２）
・ブロンス粉（Ｎｏ．７７７０、福田金属箔工業（
株）製） ２０．０（部） ・フェノール
樹脂（タマノル５１０ 、荒川化学工業（株）製）
５．０ ・ケトン樹脂（ハイラック１１０Ｈ、日立化
成工業（株）製） ２０．０ ・エタノール
５５．０上記組成を比較
例１と同様にして、その結果を表１に示す。(Comparative Example 2) Bronze powder (No. 7770, Fukuda Metal Foil Industry Co., Ltd.)
20.0 (parts) Phenol resin (Tamanol 510, manufactured by Arakawa Chemical Industry Co., Ltd.)
5.0 - Ketone resin (Hilac 110H, manufactured by Hitachi Chemical Co., Ltd.) 20.0 - Ethanol
55.0 The above composition was the same as Comparative Example 1, and the results are shown in Table 1.
【００１６】（比較例３）
・アルミペースト
１０．０部 ・ジアゾ系黄色顔料
１５．０ ・アゾ系赤色顔料
５．０ ・アクリ
ルエマルジョン
２５．０ ・
ノリオン系湿潤剤（ ハイオニックＯＥ−９０ 、サ
ンノプコ社製） １．０ ・ポリビニルアルコール
０．５ ・水
４
４．０上記組成を比較例１と同様にして、その結果を表
１に示す。(Comparative Example 3) - Aluminum paste
10.0 parts Diazo yellow pigment
15.0 ・Azo red pigment
5.0 ・Acrylic emulsion
25.0 ・
Norion type wetting agent (Hyonic OE-90, manufactured by San Nopco) 1.0 ・Polyvinyl alcohol
0.5 ・Water
4
4.0 The above composition was the same as Comparative Example 1, and the results are shown in Table 1.
【００１７】[0017]
【表１】
◎は特に良好、○は良好、△はやや劣る、×は劣るをそ
れぞれ示す。[Table 1] ◎ indicates particularly good, ◯ indicates good, △ indicates slightly poor, and × indicates poor.
【００１８】[0018]
【発明の効果】本発明のエタノール製金用インキ組成物
は、着色剤として真鍮粉、溶剤としてエタノール、分散
剤としてアルデヒド樹脂および／またはケトン樹脂を用
いることを特徴とする。そのため、本発明のインキ組成
物は、嫌な臭いや毒性が少なく、多くの筆記面に対する
筆記性が良好で、エタノールを使用しても硬い沈降物や
ガスの発生などによる劣化が極めて起りにくい。The ethanol ink composition for gold of the present invention is characterized by using brass powder as a colorant, ethanol as a solvent, and aldehyde resin and/or ketone resin as a dispersant. Therefore, the ink composition of the present invention has little unpleasant odor and toxicity, has good writing properties on many writing surfaces, and is extremely resistant to deterioration due to generation of hard sediment or gas even when ethanol is used.
Claims (1)
ド樹脂、ケトン樹脂またはアルデヒド樹脂とケトン樹脂
を含有してなることを特徴とするエタノール性金用イン
キ組成物。1. An ethanolic gold ink composition comprising brass powder, ethanol, and an aldehyde resin, a ketone resin, or an aldehyde resin and a ketone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14409491A JP2991810B2 (en) | 1991-05-21 | 1991-05-21 | Ethanol gold ink composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14409491A JP2991810B2 (en) | 1991-05-21 | 1991-05-21 | Ethanol gold ink composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04342776A true JPH04342776A (en) | 1992-11-30 |
| JP2991810B2 JP2991810B2 (en) | 1999-12-20 |
Family
ID=15354073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14409491A Expired - Fee Related JP2991810B2 (en) | 1991-05-21 | 1991-05-21 | Ethanol gold ink composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2991810B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0517717A (en) * | 1991-07-12 | 1993-01-26 | Mitsubishi Pencil Co Ltd | Alcoholic marking-pen ink composition |
| US7211135B2 (en) | 2004-03-16 | 2007-05-01 | Nanogate Coating Systems Gmbh | Writable and printable colloidal gold solution |
-
1991
- 1991-05-21 JP JP14409491A patent/JP2991810B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0517717A (en) * | 1991-07-12 | 1993-01-26 | Mitsubishi Pencil Co Ltd | Alcoholic marking-pen ink composition |
| US7211135B2 (en) | 2004-03-16 | 2007-05-01 | Nanogate Coating Systems Gmbh | Writable and printable colloidal gold solution |
| US7579074B2 (en) | 2004-03-16 | 2009-08-25 | Nanogate Ag | Writable and printable colloidal gold solution |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2991810B2 (en) | 1999-12-20 |
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