JPS5731587A - Selective duplication of part of informations included in duplicating manuscript - Google Patents

Selective duplication of part of informations included in duplicating manuscript

Info

Publication number
JPS5731587A
JPS5731587A JP10628380A JP10628380A JPS5731587A JP S5731587 A JPS5731587 A JP S5731587A JP 10628380 A JP10628380 A JP 10628380A JP 10628380 A JP10628380 A JP 10628380A JP S5731587 A JPS5731587 A JP S5731587A
Authority
JP
Japan
Prior art keywords
information
duplicating
manuscript
photochromic material
coloring
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
JP10628380A
Other languages
Japanese (ja)
Inventor
Keiji Miyajima
Kanenori Yoshida
Takeo Sugiura
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP10628380A priority Critical patent/JPS5731587A/en
Publication of JPS5731587A publication Critical patent/JPS5731587A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

PURPOSE: To easily emerge or erase a part of informations included in a duplicating manuscript with optical radiation or heat supply only, by forming a coloring or decoloring layer with a film-forming material containing a photochromic material.
CONSTITUTION: A coloring or decoloring layer 3 is formed on information 2', expected to be selectively duplicated, in information 2 recorded onto a substrate 1 by a color ink, with a film-forming material containing a photochromic material which can be revesibly colored or decolored by light or heat. When the duplicating manuscript is used as such for duplicating, the information 2' is emerged on a duplicated matter without any hindrance on duplication by the layer 3, because the photochromic material usually assumes an achromatic or light color. When the information 2' is expected to be erased from the duplicated matter, the duplicating manuscript is irradiated through its front or back surface with ultraviolet rays to develop the photochromic material, i.e. to develop the coloring or decoloring layer 3, and to shield the information 2'. Consequently, a duplicated matter on which the other information 2 only is transferred is obtained by duplicating the treated manuscipt.
COPYRIGHT: (C)1982,JPO&Japio
JP10628380A 1980-07-31 1980-07-31 Selective duplication of part of informations included in duplicating manuscript Pending JPS5731587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10628380A JPS5731587A (en) 1980-07-31 1980-07-31 Selective duplication of part of informations included in duplicating manuscript

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10628380A JPS5731587A (en) 1980-07-31 1980-07-31 Selective duplication of part of informations included in duplicating manuscript

Publications (1)

Publication Number Publication Date
JPS5731587A true JPS5731587A (en) 1982-02-20

Family

ID=14429735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10628380A Pending JPS5731587A (en) 1980-07-31 1980-07-31 Selective duplication of part of informations included in duplicating manuscript

Country Status (1)

Country Link
JP (1) JPS5731587A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029808A (en) * 1973-04-22 1975-03-25
JPS5297740A (en) * 1976-02-12 1977-08-16 Kyodo Printing Co Ltd Format and printed matter difficultly capable of duplication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029808A (en) * 1973-04-22 1975-03-25
JPS5297740A (en) * 1976-02-12 1977-08-16 Kyodo Printing Co Ltd Format and printed matter difficultly capable of duplication

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