Influence of the Backrest Roll Position on the Physical and Mechanical Properties of the Produced Fabric

Understanding the geometry of the cross section for the production of textile yarn and fabrics with good performance is essential. The shape and dimensions of the cross-section and changes in the structure of the yarn greatly in thickness, the hands, cover factor, polished determines the fabric. the Shed Type and effect of backrest position Influence on the Physical and Mechanical Properties of the Produced Fabric.
In this paper, 9 polyester-viscose fiber samples with different of backrest positions was produced and shaped cross-section and its physical and mechanical properties such as tensile strength, shear strength, flexural strength, shrinkage resistance flexibility, air permeability and water permeability were investigated.
In this paper it was found that the backrest position (towards the zero position and normal backrest position in weaving machine), the fabric becomes tight and thick. Manual density increases. Shaped cross-section is more compact warp yarns (weft yarns shaped cross-section does not change much). Tensile strength in the warp increases. Shear strength is high. Flexural strength in the warp increases. Covering factor high transparency and low water permeability and air. Go back backrest position (relative to the zero position and normal backrest position in weaving machine) fabric is more tightly. Shaped cross-section of the circular warp yarn oval, wide oval or elliptical Slim change. Shaped cross-section of the weft yarn is changed from circular to oval.