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15th April 2015, Wetzikon

Loepfe Brothers to present innovative solutions at ShanghaiTex 2015

Loepfe Brothers, the leading manufacturer of sensors and monitoring equipment for yarn spinning and fabric weaving processes, will exhibit at the 17th international exhibition for the textile industry ShanghaiTex 2015 that will be held from 15-18 June in Shanghai.

Loepfe Brothers started business 60 years ago, providing solutions for weaving mills. The company’s WeftMaster, for example, is designed to provide components for weaving machines, such as weft stop motions, short weft detectors, weft thread brakes, projectile brakes, and knot detectors for different applications.

YarnMaster ZENIT+ . © Loepfe Brothers

The first yarn clearer was produced in 1963 with basic clearing options. The subsequent focus was more on developing and manufacturing optical yarn clearers. From the 1990s onwards, Loepfe played a leading role in providing innovative solutions for spinning mills, the company reports.

YarnMaster spinning solution

A new yarn clearer generation YarnMaster ZENIT+ was introduced in 2014, focused on state-of-the-art and fastest processors and measuring technology. These innovative technical components are said to allow even more precise yarn clearing and a multi-layered evaluation of the measuring results.

The easy to service and easy to operate central unit LZE-V provides a clearly structured user interface. According to the manufacturer, Loepfe provides an extremely reliable tool to safely detect even the finest yarn irregularities. Just one sensing head covers the range of yarn counts from Nec 2.4 to Nec 320.

YarnMaster 3N1 and 1N1

Loepfe's new YarnMaster 3N1 (open end), integrated with three sensors, combines conventional clearer functions for diameter, an F-sensor for detection of foreign matter and a P-sensor for detection of synthetic foreign matter irrespective of the yarn colour.

FALCON-i sensor head. © Loepfe Brothers

Loepfe YarnMaster 1N1 has a sensing head integrated with one sensor for diameter measurement. The 3N1 & 1N1 can communicate with any type of OE machine control and the Graphical User Interface provides comfortable access to all functions and reports.

Yarn clearing is activated by setting classes within the clearer matrix using the touch screen. The length and deviation limits of the classes can be set individually within certain limits. Repetitive quality stops or longer faults can be blocked for particular rotors. This covers the range of yarn counts from Nec 3 to Nec 60 with maximum spinning speeds up to 400 m/min.

WeftMaster weaving solution

The new WeftMaster Falcon-i introduced in 2014 is an optical yarn defects sensor and an important innovation contributing to knotless weaving fabrics.

The company believes that installing the FALCON-i yarn defects sensor solves the problems faced in manufacturing high-tech fabrics, such as elimination of smallest knots, fluff or even filamentation from the weft yarn.


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