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Title:
ROLLED PHOTOSENSITIVE MATERIAL FOR LOADING IN BRIGHT ROOM
Document Type and Number:
Japanese Patent JPH08190176
Kind Code:
A
Abstract:

PURPOSE: To obtain a rolled photosensitive material for loading in a bright room which is improved in a rupturing property at the time of rupturing a light shielding part and does not generate paper powder by forming the joint part of a peripheral light shielding part and a side face light shielding part of a laminate of aluminum foil and plastic films.

CONSTITUTION: This rolled photosensitive material has a core, the rolled photosensitive material wound around the core, the peripheral surface light shielding part 11 for light shielding of the peripheral surface of the rolled photosensitive material and the side face light shielding part 10 for light shielding of the side face. At least the joint part 6 of the peripheral surface light shielding part 11 and the side face light shielding part 10 is formed of the laminate of the aluminum foil 3 and the plastic films 1, 5. Namely, the joint part 6 formed in the side face light shielding part 10 is stuck to the peripheral surface light shielding part 11 by an adhesive, etc., to perfect the light shielding state. At this time, the laminate of the aluminum foil 3 and the plastic films 1, 5 is used for at least the joint part 6 and a material having the tear strength higher than the tear strength of the joint part 6 is used for the side face light shielding part 11. As a result, the rupturing property is improved and the degradation in the quality by adhesion of the paper powder to the photosensitive material is prevented.


Inventors:
HONJO KATSUMI
Application Number:
JP164295A
Publication Date:
July 23, 1996
Filing Date:
January 10, 1995
Export Citation:
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Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
G03C3/00; G03C3/02; (IPC1-7): G03C3/02; G03C3/00