JPS6459355A - Production of original plate for thermography - Google Patents

Production of original plate for thermography

Info

Publication number
JPS6459355A
JPS6459355A JP21679587A JP21679587A JPS6459355A JP S6459355 A JPS6459355 A JP S6459355A JP 21679587 A JP21679587 A JP 21679587A JP 21679587 A JP21679587 A JP 21679587A JP S6459355 A JPS6459355 A JP S6459355A
Authority
JP
Japan
Prior art keywords
film
correction
negative
black
positive
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
JP21679587A
Other languages
Japanese (ja)
Inventor
Takeshi Takahashi
Yoshiyuki Aozuka
Toku Sato
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 JP21679587A priority Critical patent/JPS6459355A/en
Publication of JPS6459355A publication Critical patent/JPS6459355A/en
Pending legal-status Critical Current

Links

Landscapes

  • Preparing Plates And Mask In Photomechanical Process (AREA)

Abstract

PURPOSE:To facilitate the correction of a plate by forming a film for correction of black and white tones from a continuous tone negative film and forming a half tone positive film from the film for correction. CONSTITUTION:The continuous tone negative film is formed by photographing an original such as natural wood and the film for correction of the black and white tones is formed from the continuous tone negative film. The half tone positive film is formed from the film for correction. The film for correction of the black and white tone may be either positive or negative and is positive if a lithographic film is used. The film is negative if a duplicating film is used. the correction of the plate is executed at the time of the film for correction in this case. The correction is thus facilitated as the film for correction is of black and white tones and has no intermediate color parts.
JP21679587A 1987-08-31 1987-08-31 Production of original plate for thermography Pending JPS6459355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21679587A JPS6459355A (en) 1987-08-31 1987-08-31 Production of original plate for thermography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21679587A JPS6459355A (en) 1987-08-31 1987-08-31 Production of original plate for thermography

Publications (1)

Publication Number Publication Date
JPS6459355A true JPS6459355A (en) 1989-03-07

Family

ID=16693996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21679587A Pending JPS6459355A (en) 1987-08-31 1987-08-31 Production of original plate for thermography

Country Status (1)

Country Link
JP (1) JPS6459355A (en)

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