JPS6472894A - Information storing method - Google Patents

Information storing method

Info

Publication number
JPS6472894A
JPS6472894A JP23048387A JP23048387A JPS6472894A JP S6472894 A JPS6472894 A JP S6472894A JP 23048387 A JP23048387 A JP 23048387A JP 23048387 A JP23048387 A JP 23048387A JP S6472894 A JPS6472894 A JP S6472894A
Authority
JP
Japan
Prior art keywords
recording layer
recording
information
layer
dissolve
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
Application number
JP23048387A
Other languages
Japanese (ja)
Inventor
Izumi Tagiwa
Itsuo Ikeda
Takehiko Iwaoka
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 JP23048387A priority Critical patent/JPS6472894A/en
Publication of JPS6472894A publication Critical patent/JPS6472894A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To enable information recording with low energy and in a wide energy width, by using a reversible recording material. CONSTITUTION:A reversible recording material has a recording layer 2 which comprises a thermoplastic resin matrix 3 and an organic low molecular weight substance 4 dispersed in the matrix 3 as main constituents and the transmission density of which is reversibly varied by heat or stress. The entire area of the recording layer 2 is heated by a heated roller to a transparentizing temperature, followed by cooling to uniformly transparentize the entire area of the recording layer 2. Next, thermal energy is applied to the recording layer 2 by a thermal head or the like to partly opacify the recording layer 2, thereby recording information. Then, the recording layer 2 is surface-treated with a solvent which does not dissolve but slightly swells the resin matrix 3 and which does not dissolve the organic substance 4, whereby the information recorded in the layer 2 is optically stored. As a result, the stored information does not disappear even under high-temperature conditions.
JP23048387A 1987-09-14 1987-09-14 Information storing method Pending JPS6472894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23048387A JPS6472894A (en) 1987-09-14 1987-09-14 Information storing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23048387A JPS6472894A (en) 1987-09-14 1987-09-14 Information storing method

Publications (1)

Publication Number Publication Date
JPS6472894A true JPS6472894A (en) 1989-03-17

Family

ID=16908497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23048387A Pending JPS6472894A (en) 1987-09-14 1987-09-14 Information storing method

Country Status (1)

Country Link
JP (1) JPS6472894A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444887A (en) * 1989-12-20 1992-02-14 Ricoh Co Ltd Image display
JPH05169841A (en) * 1991-12-19 1993-07-09 Toppan Printing Co Ltd Rewritable recording erasing method and rewritable recording display
US5521371A (en) * 1990-07-06 1996-05-28 Ricoh Company, Ltd. Rewritable bar code display medium, and image display method and image display apparatus using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444887A (en) * 1989-12-20 1992-02-14 Ricoh Co Ltd Image display
US5521371A (en) * 1990-07-06 1996-05-28 Ricoh Company, Ltd. Rewritable bar code display medium, and image display method and image display apparatus using the same
JPH05169841A (en) * 1991-12-19 1993-07-09 Toppan Printing Co Ltd Rewritable recording erasing method and rewritable recording display

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