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Local Defect

Occurring on a limited area of a fabric. Pods in yarn - appearance of knitted fabric is distorted by clusters of yarns usually in different colour, spun in the yarn. Loose loops - loosely laid threads in loops usually in the transition from smooth to covered knitted fabric. Run - running stitch after which a linear strip of straight threads remains in the fabric Noncompressed stitch - longer stitch extended to two or more rows Faulty cover - in case of using two different materials, one being covered and one being the covering, the appearance is distorted due to the fact that the covered material is seen through the right side, i.e. poor cover occurs. Ears - in a form of thicker untwisted places in a yarn that cause irregular appearance of a finished product. The defect occurs already during yarn production. Different thread - one or more different threads are interwoven into a fabric by mistake. Threads may vary by their tension, fineness, reflex, shape of section, pollution, colour, number of twists or composition. Weave defect - on a certain spot the nature of the weave is not followed. Missing thread in weft or warp is identified as ladder. Faulty interlacing of warp and weft threads is called picking above or picking below. These defects cause shorter or longer areas of unlaced threads on the fabric surface. Defectively embroidered spot - created during disrepair of a fabric defect. Flaw - means several floating threads side by side including some ruptured threads on a small area. Pulled-in weft - occurs during weaving by pulling one extra thread to the basic weft. Thus, the weft is double in a certain fabric width. Short pick - occurs during weaving when a weft thread does not reach across the whole fabric and the weft is missing a certain part of a fabric. Twin stem - occurs by weaving in two warp or weft threads and interwoven as one. Loop - an undesirable loop from warp or weft thread. Knot - defective linking of warp or weft threads on the right side of fabric. Cut area - weft thread missing on a very short section of a fabric. Distorted edge - ripped or deformed edge, for example overstressed, loose, folded, wavy, separated. Traces of needles - perforations or ripped out threads near edge. Local narrowing - a fabric is narrower in one place compared to the neighbouring areas of fabric. Weft bar - is a different band across the fabric caused for example by harness weft bar or by a different tension of the weft thread caused by ripping and repeated weaving of a new weft, differently coloured weft or by weaving it a weft of different construction or composition. Woven-in object - a place on a fabric where dirt or other material, for example splinter, etc. is worked into the fabric Fractures - visible, variously distributed traces of sharp bends that usually cannot be removed. They occur if the deforming pressure is higher than the fibre elasticity for example in case of pulling away the fabric or fixing it, in case of faulty warehousing etc. Holes - places in fabrics with distorted sets of threads causing small or bigger opening. Stain - soiled place in a fabric, of various size and intensity. Lustre spot - a spot in a fabric with undesirable different gloss. Defects of hair - created in various manners. Are created in various manners. They are caused by uneven height of woven-in yarn, local tearing off of a flock of wool. Defects of loops - wrongly created loops on loop fabric. For example higher or lower loop, missing loop or pull-out loop thread. Snad - increased stress causes the weave to be distorted by pulling out the threads



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Evropská unie Education and Culture This project has been funded with support from the European Commission. This publication [communication] reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
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