Cleaner Technology Transfer to the Polish Textile ... - Miljøstyrelsen
Cleaner Technology Transfer to the Polish Textile ... - Miljøstyrelsen
Cleaner Technology Transfer to the Polish Textile ... - Miljøstyrelsen
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Topic 16.<br />
Softening in pad mangles<br />
or by spraying<br />
Case illustration:<br />
Avoid softening in batch<br />
dyeing machines<br />
Concept The majority softening after batch dyeing is presently done in <strong>the</strong> batch<br />
machinery by exhaustion processes. This is limiting <strong>the</strong> choice of softening<br />
agents <strong>to</strong> environmental harmful cationic agents and it is giving rise <strong>to</strong> a 10-<br />
20% loss of softening agent <strong>to</strong>ge<strong>the</strong>r with a loss of <strong>the</strong> whole volume of warm<br />
softening bath. If this process instead is practised in pad mangles or by spraying,<br />
o<strong>the</strong>r more environmentally friendly softening agents can be used and <strong>the</strong><br />
chemical loss can be diminished <strong>to</strong> a few per cent. Fur<strong>the</strong>rmore, <strong>the</strong> warm<br />
water volume lost by pad mangle application is much less and <strong>the</strong> water loss<br />
by spraying application is zero. Practical limitations for such a change should<br />
be revealed and possible solutions be proposed.<br />
Improvement potentials Savings in water, energy and chemicals. Introduction of environmentally<br />
friendly softening agents.<br />
Relevance All companies applying softening agents in batch dyeing machines.<br />
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