JPS643662A - Light shielding method - Google Patents

Light shielding method

Info

Publication number
JPS643662A
JPS643662A JP15935787A JP15935787A JPS643662A JP S643662 A JPS643662 A JP S643662A JP 15935787 A JP15935787 A JP 15935787A JP 15935787 A JP15935787 A JP 15935787A JP S643662 A JPS643662 A JP S643662A
Authority
JP
Japan
Prior art keywords
exposing
plate making
photographic paper
detected
light shielding
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
JP15935787A
Other languages
Japanese (ja)
Inventor
Masaaki Matsuo
Takashi Sawada
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.)
Toyo Ink Mfg Co Ltd
Original Assignee
Toyo Ink Mfg 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 Toyo Ink Mfg Co Ltd filed Critical Toyo Ink Mfg Co Ltd
Priority to JP15935787A priority Critical patent/JPS643662A/en
Publication of JPS643662A publication Critical patent/JPS643662A/en
Pending legal-status Critical Current

Links

Landscapes

  • Preparing Plates And Mask In Photomechanical Process (AREA)

Abstract

PURPOSE:To enable simple, rapid and accurate plate making by detecting a required image part and subjecting unnecessary parts except this detected part to a light shielding operation by an image forming means of thermosensitive transfer. CONSTITUTION:An object 1 to be inspected such as film for plate making or photographic paper is advanced by a conveying means 2 including a belt and roller, etc. to an exposing and detecting means 10. A fluorescent lamp or LED arrays 11 (for transmission), 12 (for reflection, i.e., for photographic paper) as light sources for illumination (exposing means) and a CCD photodetecting element (detecting means) 13 are disposed to the exposing and detecting means 10 perpendicularly to the conveying direction. Namely, the film or photographic paper 1 or the like is exposed and the necessary part is detected at the detection pitch conforming to a picture element unit. A light shielding layer is provided on the parts except the detected necessary part by the thermal transfer using a thermosensitive transfer material formed by laminating a hot meltable layer and an ink layer contg. a light shieldable pigment on a base. The simple, rapid and accurate plate making is thereby executed.
JP15935787A 1987-06-26 1987-06-26 Light shielding method Pending JPS643662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15935787A JPS643662A (en) 1987-06-26 1987-06-26 Light shielding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15935787A JPS643662A (en) 1987-06-26 1987-06-26 Light shielding method

Publications (1)

Publication Number Publication Date
JPS643662A true JPS643662A (en) 1989-01-09

Family

ID=15692079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15935787A Pending JPS643662A (en) 1987-06-26 1987-06-26 Light shielding method

Country Status (1)

Country Link
JP (1) JPS643662A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946647A (en) * 1982-09-09 1984-03-16 Toppan Printing Co Ltd Pinhole sealing device
JPS6112341A (en) * 1984-06-29 1986-01-20 Toppan Printing Co Ltd Apparatus for inspecting printed matter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946647A (en) * 1982-09-09 1984-03-16 Toppan Printing Co Ltd Pinhole sealing device
JPS6112341A (en) * 1984-06-29 1986-01-20 Toppan Printing Co Ltd Apparatus for inspecting printed matter

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