Film cartridge

Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system

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396513, G03B 1726

Patent

active

058606130

ABSTRACT:
A container for a strip (12) of light-sensitive material includes an elongated opening for withdrawing the material from the container. Strips (22) of light-locking material are provided on both sides of the opening, the strips being made from a napped and sheared woven fabric (12, 14). The fabric is dyed, dried, napped, sheared and heat set prior to preparation of the strips. A method of producing such a light-locking material is taught which includes steps of passing the woven fabric multiple times through napping and shearing operations to increase the pile density.

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patent: 5358198 (1994-10-01), Lesley

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