Uster Jossi Vision Shield Decontaminates Spunlace Nonwovens, Minimising Waste

Machinery and Technology

Uster Jossi Vision Shield Decontaminates Spunlace Nonwovens, Minimising Waste

Switzerland-headquartered Uster Technologies has introduced its Uster Jossi Vision Shield fibre cleaning system which maximum detection of contaminants with minimal waste.

Located near the blow room, the system uses latest-technology spectroscopes to pinpoint even the smallest particles of foreign matter in cotton or man-made fibre raw material.

Covering a much wider wavelength than conventional camera systems, Uster Jossi Vision Shield has the power to identify and remove fragments as fine as a single human hair. At this stage in the fibre preparation routine, detection is enhanced, since the fibre tufts have the optimum opening to prevent any small contaminants being hidden inside them.

Once identified, the foreign matter pieces are automatically ejected by the system, preventing contamination of the spun laced fabric. Some waste here is inevitable, but Uster Jossi Vision Shield controls this by continuously measuring the speed at which the fibre tufts pass through. It then uses precision valves to time each ejection perfectly, so that only the unwanted contaminant is removed, with an absolute minimum of good fibre being lost. The cost savings for the producer can be significant.

The quality demands facing nonwovens manufacturers in these key applications are stringent. For example, it is clearly unacceptable to allow any kind of stray material in hospital products such as absorbent cotton, alcohol swabs, or surgical gauze. Claims and complaints would certainly have a serious impact on the producer’s reputation.

Uster Jossi Vision Shield gives spunlace producers the confidence and security to avoid quality issues in this demanding marketplace. Its technology can cope with both IR and UV light ranges and it can reliably detect various types of foreign matter. All kind of synthetics and even the finest scraps of white polypropylene – otherwise difficult to pick out – are efficiently removed, using the Uster Jossi Magic Eye in tandem with the Uster Jossi Vision Shield.

This technology combination empowers nonwovens producers to take control of contamination at the highest levels of quality and efficiency, making investment Uster Jossi Vision Shield a logical choice for fibre cleaning.