Title:
感熱孔版原紙の製版方法、製版装置及び孔版印刷版
Document Type and Number:
Japanese Patent JP4359008
Kind Code:
B2
Abstract:
In a method and apparatus for perforating a heat sensitive stencil sheet having a heat shrinkable film, the film is selectively heated with a heating device to form independent dot perforations corresponding to an image, and the heating device is controlled to ensure that the perforations satisfy the following formula (1):where p denotes a scanning pitch in a main scanning direction or a sub scanning direction; d denotes an inner diameter of a perforation in the same direction as p; and f denotes a width of a rim of said perforation at a portion that is not merged with any rims of its adjacent perforations. Irregularity of perforation configuration is decreased, size of perforations is kept adequate, and the heating device does not have to be heated to a high temperature.
Inventors:
Atsushi Nakamura
Shoichi Ikeshima
Shoichi Ikeshima
Application Number:
JP2001126014A
Publication Date:
November 04, 2009
Filing Date:
April 24, 2001
Export Citation:
Assignee:
Ideal Science Industry Co., Ltd.
International Classes:
B41C1/055; B41C1/14; B41L13/04
Domestic Patent References:
| JP4265783A | ||||
| JP6297668A |
Attorney, Agent or Firm:
Masatake Ide