Automatic cleaning system JOSSI VISION SHIELD T

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Uster Jossi Vision Shield T incorporates three different detection methods and ensures an adequate performance. This cutting-edge technology leads to improved final products and ensures customer requirements regarding contamination levels are met. 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. IMAGING SPECTROSCOPE 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.