Method to produce light-lock fabric
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United States of America Patent
Stats
-
Jul 30, 1996
Issued Date -
N/A
app pub date -
Apr 29, 1994
filing date -
Jan 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
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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