Uster offers solutions for removing contamination from nonwovens.

Nonwovens applications such as medical, hygiene and cosmetics demand two non-negotiable rules: zero-tolerance and reliability. Contamination control is the supreme discipline in producing nonwovens for sensitive applications. The Uster contamination sorter masters this essential job with ease and security. It ensures customer satisfaction and a perfect experience for the final consumer – whether the end-product is made of natural or synthetic fibers. Drylaid nonwovens producers operate to the most stringent quality levels – with zero-tolerance standards for defects bigger than 1 mm. In this nonwovens segment, end-product quality depends absolutely on the efficiency of contamination sorting early in the process.

Bales of cotton typically contain various kinds of contamination – none of which should get into the final product, and ideally should be removed at the earliest stage of production.Eliminating contamination during fiber preparation – and before the contaminants are shredded into smaller particles by further processes – improves the quality of the raw material and reduces waste. The Uster Jossi Vision Shield N contamination sorter ensures the best possible detection and removal of contamination.

Conventional camera-based systems cannot match the performance of the top-level spectroscope technology from Uster. These spectroscopes can find contamination even within the invisible range of IR and UV light.