JPS57145169A - Liquid-type ink with water-erasable trace - Google Patents
Liquid-type ink with water-erasable traceInfo
- Publication number
- JPS57145169A JPS57145169A JP3052881A JP3052881A JPS57145169A JP S57145169 A JPS57145169 A JP S57145169A JP 3052881 A JP3052881 A JP 3052881A JP 3052881 A JP3052881 A JP 3052881A JP S57145169 A JPS57145169 A JP S57145169A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ink
- liquid
- trace
- type 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.)
- Pending
Links
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE: A liquid-type ink capable of writing a letter, figure, etc. on fabric, paper, etc., which are easily erased with water, comprising a specified aq. sol. contg. an indicator which can be colored or decolored depending on pH.
CONSTITUTION: An indicator such as phenol red, m-nitrophenol or bromothymol blue which can be colored in a slightly alkaline soln. and decolored in a neutral or acid soln. is used. For example, 3W3.5pts.wt. sodium carbonate, 0.5W0.7pts.wt. potassium hydroxide, 80pts.wt. water, 0.25W3pts.wt. phenol red and 20pts.wt. polyethylene glycol are mixed to form an ink exhibiting red in a slightly alkaline soln. A trace written with said ink can be easily erased with water. It is possible to prepare a yellow ink by use of m-nitrophenol and a blue ink by use of bromothymol blue.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3052881A JPS57145169A (en) | 1981-03-05 | 1981-03-05 | Liquid-type ink with water-erasable trace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3052881A JPS57145169A (en) | 1981-03-05 | 1981-03-05 | Liquid-type ink with water-erasable trace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57145169A true JPS57145169A (en) | 1982-09-08 |
Family
ID=12306297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3052881A Pending JPS57145169A (en) | 1981-03-05 | 1981-03-05 | Liquid-type ink with water-erasable trace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57145169A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59179572A (en) * | 1983-03-29 | 1984-10-12 | Seiji Kawashima | Writing utensil set |
JPS59182776A (en) * | 1983-04-02 | 1984-10-17 | Seiji Kawashima | Stamping set |
JPS63286481A (en) * | 1987-05-20 | 1988-11-24 | Dainichi Color & Chem Mfg Co Ltd | Ink composition for ink jetting |
US5310627A (en) * | 1992-12-15 | 1994-05-10 | Minnesota Mining And Manufacturing Company | Changing the color of yellow resist images by application of pH-sensitive dyes |
CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
-
1981
- 1981-03-05 JP JP3052881A patent/JPS57145169A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59179572A (en) * | 1983-03-29 | 1984-10-12 | Seiji Kawashima | Writing utensil set |
JPS59182776A (en) * | 1983-04-02 | 1984-10-17 | Seiji Kawashima | Stamping set |
JPS63286481A (en) * | 1987-05-20 | 1988-11-24 | Dainichi Color & Chem Mfg Co Ltd | Ink composition for ink jetting |
US5310627A (en) * | 1992-12-15 | 1994-05-10 | Minnesota Mining And Manufacturing Company | Changing the color of yellow resist images by application of pH-sensitive dyes |
CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
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