JPS56155792A - Thermal recording type magnetic ticket sheet - Google Patents

Thermal recording type magnetic ticket sheet

Info

Publication number
JPS56155792A
JPS56155792A JP5788280A JP5788280A JPS56155792A JP S56155792 A JPS56155792 A JP S56155792A JP 5788280 A JP5788280 A JP 5788280A JP 5788280 A JP5788280 A JP 5788280A JP S56155792 A JPS56155792 A JP S56155792A
Authority
JP
Japan
Prior art keywords
binder
dialdehyde starch
color
forming layer
layer
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
JP5788280A
Other languages
Japanese (ja)
Other versions
JPS6240198B2 (en
Inventor
Yukihiro Yuyama
Yasuhiro Honda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP5788280A priority Critical patent/JPS56155792A/en
Publication of JPS56155792A publication Critical patent/JPS56155792A/en
Publication of JPS6240198B2 publication Critical patent/JPS6240198B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/337—Additives; Binders
    • B41M5/3372—Macromolecular compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To prevent printed characters from decoloring under high temperature and high humidity conditions, by compounding dialdehyde starch as a thermosensitive color-forming layer and a binder in a costing layer. CONSTITUTION:On the opposite surface of a supporting body coated with a ferromagnetic recording layer is applied a thermosensitive color-forming layer consisting mainly of a leuco substance which is ordinarily colorless or slightly colored and an acid substance effecting the color formation of the leuco substance, such as alpha- naphthol or 4-t-butylphenol, together with a binder, and dried. At this time, while polyvinyl alcohol, methoxycellulose or the like is compounded as a binder, a coating layer containing dialdehyde starch is further formed on the thermosensitive color- forming layer. By adding the dialdehyde starch in an amount of 30% or more as the binder and by using a water-soluble polymer together, a magnetic ticket sheet having a clear color tone and a surface not faded or decolored even when wetted is obtained.
JP5788280A 1980-05-02 1980-05-02 Thermal recording type magnetic ticket sheet Granted JPS56155792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5788280A JPS56155792A (en) 1980-05-02 1980-05-02 Thermal recording type magnetic ticket sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5788280A JPS56155792A (en) 1980-05-02 1980-05-02 Thermal recording type magnetic ticket sheet

Publications (2)

Publication Number Publication Date
JPS56155792A true JPS56155792A (en) 1981-12-02
JPS6240198B2 JPS6240198B2 (en) 1987-08-27

Family

ID=13068352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5788280A Granted JPS56155792A (en) 1980-05-02 1980-05-02 Thermal recording type magnetic ticket sheet

Country Status (1)

Country Link
JP (1) JPS56155792A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233326A (en) * 1985-08-06 1987-02-13 Tomoegawa Paper Co Ltd Heat sensitive magnetic recording medium
US4766015A (en) * 1987-04-21 1988-08-23 Bercen, Inc. Phospholipid lubricant for coating moving webs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233326A (en) * 1985-08-06 1987-02-13 Tomoegawa Paper Co Ltd Heat sensitive magnetic recording medium
JPH0376837B2 (en) * 1985-08-06 1991-12-06 Tomoegawa Paper Co Ltd
US4766015A (en) * 1987-04-21 1988-08-23 Bercen, Inc. Phospholipid lubricant for coating moving webs

Also Published As

Publication number Publication date
JPS6240198B2 (en) 1987-08-27

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