JPH0348038B2 - - Google Patents

Info

Publication number
JPH0348038B2
JPH0348038B2 JP57092155A JP9215582A JPH0348038B2 JP H0348038 B2 JPH0348038 B2 JP H0348038B2 JP 57092155 A JP57092155 A JP 57092155A JP 9215582 A JP9215582 A JP 9215582A JP H0348038 B2 JPH0348038 B2 JP H0348038B2
Authority
JP
Japan
Prior art keywords
electron
plain paper
color developer
colorless dye
donating colorless
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.)
Expired - Lifetime
Application number
JP57092155A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58209588A (ja
Inventor
Toshihiko Matsushita
Sadao Morishita
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.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills 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 Mitsubishi Paper Mills Ltd filed Critical Mitsubishi Paper Mills Ltd
Priority to JP57092155A priority Critical patent/JPS58209588A/ja
Publication of JPS58209588A publication Critical patent/JPS58209588A/ja
Publication of JPH0348038B2 publication Critical patent/JPH0348038B2/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
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
JP57092155A 1982-06-01 1982-06-01 秘密文書作成方法 Granted JPS58209588A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57092155A JPS58209588A (ja) 1982-06-01 1982-06-01 秘密文書作成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57092155A JPS58209588A (ja) 1982-06-01 1982-06-01 秘密文書作成方法

Publications (2)

Publication Number Publication Date
JPS58209588A JPS58209588A (ja) 1983-12-06
JPH0348038B2 true JPH0348038B2 (enrdf_load_stackoverflow) 1991-07-23

Family

ID=14046529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57092155A Granted JPS58209588A (ja) 1982-06-01 1982-06-01 秘密文書作成方法

Country Status (1)

Country Link
JP (1) JPS58209588A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1275363B (it) * 1994-07-21 1997-08-05 Alagao Ag Procedimento per la protezione anticontraffzione di documenti realizzati su supporti di carta o di altri materiali opportuni

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847998B2 (ja) * 1977-11-11 1983-10-26 三菱製紙株式会社 自已発色性感圧記録紙
JPS54149302U (enrdf_load_stackoverflow) * 1978-04-07 1979-10-17
JPS54159008A (en) * 1978-06-01 1979-12-15 Naigai Ink Mfg Co Ltd Pressureesensitive copying paper
JPS5655666U (enrdf_load_stackoverflow) * 1979-10-06 1981-05-14
JPS5653089A (en) * 1979-10-08 1981-05-12 Godo Insatsu Kk Method of expressing letters or picture on paper and other base sheets
JPS5731589A (en) * 1980-08-01 1982-02-20 Mitsubishi Paper Mills Ltd Pressure-sensitive copying paper
JPS5743895A (en) * 1980-08-28 1982-03-12 Mitsubishi Paper Mills Ltd Pressure-sensitive copying paper

Also Published As

Publication number Publication date
JPS58209588A (ja) 1983-12-06

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