FYI Tester Instrument

  The jigger dyeing machine is suitable for dyeing fabrics in multiple varieties and small batches. Its basic working process involves repeatedly passing a fabric of specific length and width through a dye bath of a certain temperature and concentration. According to the process requirements, a specific number of reciprocating cycles are completed at different temperatures to achieve dye uptake on the fabric surface. The working principle of the jigger involves two main rollers of identical size. Driven by guide rollers, expander rollers, etc., the fabric is alternately wound and unwound within the dye bath at a controlled speed and tension, following the dyeing process requirements, until the desired result is achieved. Jigger dyeing machine principle As dyeing progresses, the diameter of the take-up roller gradually increases, while the diameter of the let-off roller decreases correspondingly. To maintain constant linear speed and constant tension on the fabric, the rotational sp...

Ever wondered how cotton goes from fluffy white bolls to the fabric in your clothes? It’s all about cotton ginning. This is the heart of textile manufacturing. It turns raw cotton into clean fiber ready for spinning and weaving. Cotton ginning machines are the workhorses of this industry. They separate cotton fibers from seeds and remove dirt and debris. Without these machines, cotton processing would be slow and expensive. The technology has come a long way since 1793. That’s when Eli Whitney invented the first cotton gin. Today’s machines are innovative and efficient. They use computers and sensors to work perfectly. They can process thousands of pounds of cotton per hour. Understanding these machines is crucial whether you work in research, teach at universities, or run textile operations. This guide will teach you everything about cotton ginning technology. You’ll learn how to choose the right equipment and run it successfully. What is Cotton Ginning? Cotton ginning is simple. It s...

The durability and integrity of shoe soles under repeated flexing are critical performance parameters directly impacting product longevity, consumer safety, and overall value. Footwear is subjected to constant bending stresses during normal use, particularly in the forefoot area, making the sole’s resistance to crack initiation and propagation a fundamental indicator of quality. The Ross Flexing Test as one of the most established and widely recognized laboratory methods within the footwear industry for evaluating this essential characteristic. This standardized test rigorously simulates the dynamic flexing action experienced by a shoe sole in service. By subjecting a precisely prepared specimen containing an artificial notch to controlled, repetitive bending cycles, the test quantifies the material’s inherent ability to resist the growth of this initial flaw. The resulting “notch growth rate” provides manufacturers, material suppliers, and quality control laboratories with a vital, ob...