CASE STUDIES FOR TEXTILE PRINTING
CASE NO. 6
Description: American Enka Co. (now BASF) produces nylon
yarn. Isopropyl alcohol was used as a solvent for a
fatty amine. Previously the company employed an outside
firm for the distillation and reuse of solvent. Average
solvent losses were 15% with some as high as 40%. The
solvent was also aften contaminated and required analysis
before reuse.
Courses of Action:
The company purchased a used distillation system for
$7,500.00 Some modifications were made to the unit for
use with their product.
Savings:
Initially this resulted in a $90,000.00 per year
savings over their previous contract fees. They also
obtained a much superior recovered solvent at a 90%
efficiency rate. They now use far more of the recovered
alcohol and also utilize the still bottoms as an asphalt
emulsifier in another product line. Total payback for
the project was approximately one month.
This project also relates to solvent recovery and
reuse possible by textile printing operations.
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