Content - Instruments


USTER® JOSSI VISION SHIELD T incorporates three different contamination detection methods. They ensure remarkable performance and clean cotton. Top technology means improved final products and always meeting customer quality requirements regarding contamination level.




Why clean cotton?
Environmental pollution, cost pressures and contaminated cotton make it tough for spinners to meet rising quality demands. Foreign particles damage end-product quality. So they must be eliminated – preferably at the start of yarn production. Properly cleaned cotton is essential to reach modern quality requirements.

Conventional camera-based systems can’t match the performance of the IMAGING SPECTROSCOPE of the USTER® JOSSI VISION SHIELD T. Operating across a much greater wavelength, they can find contamination even within the ‘invisible’ range of IR and UV light. Light pastel colors, and contamination as small as a single hair, are also no problem.

Scattering effect
White and transparent polypropylene contaminants are located through the unique scattering effect. Cotton tufts exhibit a halo effect under lighting, while plastics don’t. IMAGING SPECTROSCOPES use this effect to distinguish polypropylene from cotton.

Precise timing of ejections
The USTER® JOSSI VISION SHIELD T continuously measures the velocity of the cotton tufts. Precision valves match the timing and duration of each ‘ejection puff’ action to remove only the contaminant. So a minimum of ‘good’ cotton is wasted.

Perfect dimensions
Positioning of the USTER® JOSSI VISION SHIELD T in the blowroom line is essential. It needs less space than any other model, so it fits right after the fine opener. At this point, the cotton tufts are most open – the best state for detecting contaminants.

Reliability – for long-term efficiency
Consistently good yarn quality depends on reliable equipment, which efficiently removes contamination.  USTER® JOSSI VISION SHIELD T is low-maintenance and stable, based on the Linux® operating system.

Online support
USTER® JOSSI systems have optional wireless links for direct online support from the service team in Switzerland.

Software upgrades for the USTER® JOSSI VISION SHIELD T are quick and easy. Statistical data and settings can be monitored and controlled by mill managers with the newest iPad® generation.

Another plus: The USTER® JOSSI VISION SHIELD T works on low power consumption, saving energy costs.

  • Speed measurement tool for less waste per ejection
  • Cyclone ejection technology, keeping ejected material out of the production process
  • IMAGING SPECTROSCOPE with expanded spectrum, for improved detection of pastel colors
  • VTECT, with durable LED technology – emitting UV light to detect material with optical brightener
  • Reliable cooling, with no need for additional air conditioning
  • Ability to connect to all major brands of fine cleaners
  • Production rate up to 1200 kg/h