JPS5624190A - Thermo-sensitive recording sheet - Google Patents

Thermo-sensitive recording sheet

Info

Publication number
JPS5624190A
JPS5624190A JP9946279A JP9946279A JPS5624190A JP S5624190 A JPS5624190 A JP S5624190A JP 9946279 A JP9946279 A JP 9946279A JP 9946279 A JP9946279 A JP 9946279A JP S5624190 A JPS5624190 A JP S5624190A
Authority
JP
Japan
Prior art keywords
thermo
filler
substance
recording sheet
coloration
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
JP9946279A
Other languages
Japanese (ja)
Inventor
Kenji Uematsu
Hisashi Sakai
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 JP9946279A priority Critical patent/JPS5624190A/en
Publication of JPS5624190A publication Critical patent/JPS5624190A/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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

PURPOSE:To increase the writing and erasing of a thermo-sensitive recording sheet by using two kinds of fillers having particular particle sizes respectively as fillers combined in a thermo-sensitive coloration layer. CONSTITUTION:A mixing filler consisting of a filler having less than 0.1mu of mean particle size and a filler having 1-10mu of mean particle size which are combined at a ratio of 1:10-10:1 by weight ratio, is used. In other words, a colorless or a light color coloration substance (a leuco dye), a developed substance allowed to develop the color of said coloration substance in heating (a phenol substance), said mixing filler and other additives are mixed in a combined agent. This is coated on a supporter and dried. Thus the thermo-sensitive coloration layer is formed as the thermo-sensitive recording sheet. Further, as fillers, such an inorganic filler as alumina, barium carbonate or the like and such an organic filler as polyethylene powders, nylon powders or the like are used.
JP9946279A 1979-08-06 1979-08-06 Thermo-sensitive recording sheet Pending JPS5624190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9946279A JPS5624190A (en) 1979-08-06 1979-08-06 Thermo-sensitive recording sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9946279A JPS5624190A (en) 1979-08-06 1979-08-06 Thermo-sensitive recording sheet

Publications (1)

Publication Number Publication Date
JPS5624190A true JPS5624190A (en) 1981-03-07

Family

ID=14247974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9946279A Pending JPS5624190A (en) 1979-08-06 1979-08-06 Thermo-sensitive recording sheet

Country Status (1)

Country Link
JP (1) JPS5624190A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170386A (en) * 1986-01-24 1987-07-27 Fuji Photo Film Co Ltd Thermosensible recording material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170386A (en) * 1986-01-24 1987-07-27 Fuji Photo Film Co Ltd Thermosensible recording material

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