Common Replacement Parts FAQs

• Q: What will be the difference of the profiled reed used in air jet loom requiring two nozzles and more than two nozzles？
  A: The standard profiled reed is recommended for styles requiring two weft nozzles;
  
  The bicone-type reed is recommended for styles requiring four or more nozzles and for all jacquard machines
  

  
  
• Q: What are the main types of selvedges and how they are formed?
  A: The main types of selvedges are tuck-in selvedge, fused selvedge and leno selvedge. Tuck-in selvedge is formed by tucking-in protruding portions of each pick into the next warp shed, alongside the new pick, and beating them up together with it. Fused selvedge is the thermoplastic warp and weft that are welded together by heat and pressure. Leno selvedge is formed by one or more pairs of strong, highly tensioned ends that interface with the weft on the leno principle. Warp threads are crossed and interwoven into the edges of the fabric.
• Q: How to choose qualified drop wire for weaving?
  A: 1. Drop wires thickness should be even, and weight of each dropper should be same, so that all warps get same tension, making sure fabric quality;
  2. Surface of drop wires shall be flat and smooth, falling smoothly when warp breaks, and also can reduce flyings and impurities;
  3. Thread eye should be smooth without burr, to avoid harming warp yarn strength and causing breakage;
  4. Drop wires should have a certain elasticity, hardness and abrasion resistance.
  
• Q: How to choose qualified heald frame for weaving?
  A: In order to carry out a smooth and stable weaving process, heald frame should meet following criteria--
  1. A firm structure with relevant accessories to cooperate well with loom;
  2. Good mechanical performance, with proper strength and stiffness;
  3. Smooth and flat surface, and accurate dimension to fit on loom;
  4. Heald frame must be well fitted with heddles.