S.5 & S.6 Weaving Caltec S.5

WEAVING Is the method of textile production in which two distinct sets of yarns or threads are interlaced at right Angles to form a fabric or cloth. Other methods of making fabrics are; Knitting. Crocheting. Felting. Braiding & plaiting. The cloth is usually woven on a loom. A loom is a device that holds the warp threads in place while the wefts or flling threads are woven through them. There are three basic weaving methods; Plain weave. Satin weave. Twill weave. One warp thread is called an end and one weft thread is called a pick. Weaving can be summarised as a repetition of these actions; Primary motions of a loom. 1.SHEDING. Is where the warp threads (ends) and are separated by raising or lowering heald frames (heddle) to form a clear space where the the pick can pass. 2.PICKING. Is where the weft or pick is propelled across the loom by hand, an air jet, a rapier or shuttle. 3.BEATING UP OR BATTENING : Is where the weft is pushed up against the fell of the cloth by the reed. The warp is divided into two overlapping groups or lines (most often adjacent threads belonging to another, so that the shuttle can be passed between them in a straight motion. Then the upper group is raised (shedding), allowing to pass the shuttle in the opposite direction, also in the straight motion. Continous repeation of these actions for a fabric mesh but without beating up, the fnal distance between adjacent wefts would be irregular and too large. CALTEC ACADEMY MAKERERE ART & DESIGN DEPARTMENT The secondary motions of the loom are; (a)LET OFF MOTION : Is where the warp is let of the warp beam at regulated speed to make the flling and of the required design. (b)TAKE UP MOTTION: …