At the ITMA 2019, Loepfe Brothers Ltd., Wet-zikon/Switzerland, presented the brand-new yarn clearer YarnMaster Prisma. With multi-sensor measurement design and new functionalities, this yarn clearer combines new and established sensor technologies in one device. 4 sensor technologies interact intelligently and ensure unprecedented fault visibility and data quality. The unconventional new concept addresses all yarn quality problems related to material and the spinning process with a universal and multi-dimensional approach. The YarnMaster Prisma utilizes a sensor for foreign matter detection based on a new RGB-color measuring technology. The new F-sen-sor illuminates the yarn in the full spectrum of light, enabling the recognition of even the slightest difference in shade and glossiness in any type of yarn and color. The contamination of raw material with white polypropylene from bale packaging is very challenging. To solve this, the company developed the P4-Sensor, which utilizes the triboelectric effect. The sensor measures electric charge differences, which are caused during the winding process by different raw materials. Beyond these, a world first dual measurement for basic clearing was presented. On the Yarn-Master Prisma, the 2 dominant sensor technologies in yarn clearing are integrated into one single sensing head. This unconventional approach to use an optical and a mass sensor, functioning in perfect harmony, offers interesting possibilities and new levels of precision in yarn clearing.
展开▼
