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Influence of Reed on Fabric Inequality in Width

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Abstract:

Earlier experimental investigations have demonstrated the particular regularity of inequality in warp projections in the loom-state fabric width, while the projections of wefts were constant throughout the whole width of the fabric. The changes in warp projections have a great influence upon some fabric properties. The porosity, air permeability, thickness, crimp of wefts, elongation and strength in weft of the fabric are higher in the central part of the fabric than in the border areas. The aim of this article is to investigate and analyse the influence of reed on the warp projections’ inequality in fabric width. The investigations of the reed’s influence on the shape of the yarns’ cross-sections was carried out by imitating the weaving process on laboratory equipment. The results of these investigations demonstrated the high influence of the reed on warp projection alteration. The shrinkage of fabric increases the reed’s influence on the warps’ cross-section; as shrinkage (distance l) increases, so does the projection of warps increase. Herewith, the influence of the reed decreases (projections are more stable) as the stress of warps decreases; in other words, the influence of shrinkage is not so high.

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warp projections, shrinkage, influence of reed

Published in issue no 4 (58) / 2006, pages 44–47.

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