Title:
OFFSET PRINTING MACHINE FOR PRINTING SECURITY
Document Type and Number:
Japanese Patent JP2018094741
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an offset printing machine for printing a security by which inspection is executed at a suitable inspection position, and watermark inspection and ultraviolet light inspection can be reliably performed.SOLUTION: An offset printing machine comprising an offset printing part 6 for performing printing on a sheet 2, and a sheet quality inspection part 5 which inspects a quality of the sheet 2 on a sheet transfer direction upstream side with respect to the offset printing part 6. The sheet quality inspection part 5 comprises: a watermark inspection cylinder 24 which transfers the sheet 2 on an upper side of the cylinder; a watermark inspection camera 25 which picks up an image of the sheet 2, which is transferred by the watermark inspection cylinder 24, from an upper side; an ultraviolet light inspection cylinder 32 which transfers the sheet 2 on a lower side of the cylinder; and an ultraviolet light inspection camera 34 which picks up an image of the sheet 2, which is transferred by the ultraviolet light inspection cylinder 32, from a lower side.SELECTED DRAWING: Figure 1
Inventors:
HAYASAKA TOMOYUKI
SATO TADASHI
SATO TADASHI
Application Number:
JP2016239082A
Publication Date:
June 21, 2018
Filing Date:
December 09, 2016
Export Citation:
Assignee:
KOMORI CORP
International Classes:
B41F11/02; B41F7/06; B41F33/14
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa