Alchemie/HeiQ: Low energy textile technology ...

Low energy textile technology for workwear finishing

(Source: Alchemie)
(Source: Alchemie)

The innovator of waterless, low energy, textile dyeing technology, Alchemie, has achieved huge energy and water savings whilst also reducing CO2 emissions and pollution. The company used its Novara textile finishing machine to apply water and stain repellent by HeiQ to 280 g/m² polycotton twill workwear fabric.
Using Novara single sided digital finishing process from Alchemie Technology, Cambridge/UK, to apply HeiQ Barrier HM-C6 water and stain repellent chemistry provides a 52% water reduction and 46% energy saving, compared to the traditional padding method of fabric finishing.  By enabling a lower wet add-on, 31% compared to 65% for padding, and higher concentration of chemistry.
External laboratory tests verified that the Barrier HM-C6 water and stain repellent from HeiQ Materials AG, Zurich/Switzerland, when applied using the Alchemie Novara system achieved high functional performance even after 20 washes.
The low energy, single sided digital application system applies functional finishes at up to 20 times the concentration of traditional processes, with a more even application and higher quality. Adding functional finishes to a single side of fabric, rather than saturating the entire fabric, has the added advantage of keeping chemicals, such as insect repellent, to the outer side of a garment, away from the wearers skin. This is a particularly important feature for workwear in industries that need to treat e.g. uniforms with permethrin.

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