JPS641579A - Novel methine compound - Google Patents
Novel methine compoundInfo
- Publication number
- JPS641579A JPS641579A JP63026527A JP2652788A JPS641579A JP S641579 A JPS641579 A JP S641579A JP 63026527 A JP63026527 A JP 63026527A JP 2652788 A JP2652788 A JP 2652788A JP S641579 A JPS641579 A JP S641579A
- Authority
- JP
- Japan
- Prior art keywords
- dispersion
- methine compound
- alkyl group
- lower alkyl
- group
- 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
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
Abstract
PURPOSE: To obtain a developed color extremely resembling a black color alone, by using a specific methine compound in a pressure-sensitive or thermal recording material.
CONSTITUTION: The methine compound used in a pressure-sensitive or thermal recording material is represented by formula (I) (wherein R1 is a lower alkyl group, and R2 and R3 are a hydrogen atom, a lower alkyl group or a benzyl group and may have a chlorine atom, a lower alkyl group, a lower alkoxy group or a cycloalkyl group as a substituent in its molecule and not a hydrogen atom at the same time). This methine compound is dissolved in phenylxylylethane to be dispersed in an aqueous solution containing a dispersant and a methylol melamine resin is added to the resulting solution to perform encapsulation while the treated solution is subsequently neutralized to obtain a microcapsule dispersion which is, in turn, mixed with an aqueous starch sizing solution and starch grains to obtain a dispersion. This dispersion is applied to fine paper to prepare upper paper which is, in turn, laminated to the coating surface of lower paper coated with a coupler dispersion and, when both papers are subjected to printing on a typewriter, a black or dark color is developed.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63026527A JP2625467B2 (en) | 1987-02-26 | 1988-02-09 | New methine compounds |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4148687 | 1987-02-26 | ||
JP62-41486 | 1987-02-26 | ||
JP63026527A JP2625467B2 (en) | 1987-02-26 | 1988-02-09 | New methine compounds |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH011579A JPH011579A (en) | 1989-01-05 |
JPS641579A true JPS641579A (en) | 1989-01-05 |
JP2625467B2 JP2625467B2 (en) | 1997-07-02 |
Family
ID=26364313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63026527A Expired - Fee Related JP2625467B2 (en) | 1987-02-26 | 1988-02-09 | New methine compounds |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2625467B2 (en) |
-
1988
- 1988-02-09 JP JP63026527A patent/JP2625467B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2625467B2 (en) | 1997-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |