CASE STUDIES FOR TEXTILE PRINTING
CASE NO.2
Description - PCA International, Inc. is a color portrait
processing firm. PCA has undertaken a number of projects
to recover and recycle process waste especially silver
recovery.
Courses of Action:
(1) An electrolytic recovers silver from the color
negative film fixer solutions. The process results in a
96% reuse of the fixer solutions.
(2) Color developer is regenerated using an ion
exchange system. Total processing results in an 84%
recovery of the color developer solution.
(3) Spent bleach solutions are recovered and
regenerated by chemical additions, attaining 90% reuse
capability.
Savings:
PCA saves over $1.1 million each year in reusing
process solutions. Silver recovery adds another
approximate $800,000 per year.
As can be seen, this study easily relates to the
photographic processes used in textile printing screen
design and manufacture.
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