JPS641579A - Novel methine compound - Google Patents

Novel methine compound

Info

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
Application number
JP63026527A
Other languages
Japanese (ja)
Other versions
JPH011579A (en
JP2625467B2 (en
Inventor
Michihiro Tsujimoto
Mario Aoki
Makoto Asano
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP63026527A priority Critical patent/JP2625467B2/en
Publication of JPH011579A publication Critical patent/JPH011579A/en
Publication of JPS641579A publication Critical patent/JPS641579A/en
Application granted granted Critical
Publication of JP2625467B2 publication Critical patent/JP2625467B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
JP63026527A 1987-02-26 1988-02-09 New methine compounds Expired - Fee Related JP2625467B2 (en)

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)

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