The investigation of warp knitted fabric with elastomeric thread

Abstract

An expansion and improvement of the textile’s assortment is received special attention in the face of rapid scientific and technological progress, which is a part of the human society evolution. Therefore, the development of new knits for the prevention and recovery of an anatomical form and a function of the human body is an important issue. To this end, the possibilities of the knitted fabric’s manufacture for special purposes, as prevention bandage, are studying. A selection of raw materials is due to the using conditions and to the product properties. The nylon threads are most used for the manufacture of special knitted fabrics. Form stability and extensibility of fabrics is ensured by the introduction into the knitted structure elastomeric threads. They are needed to be securely fastened in the structure without contact with the external layers. In addition the surface of knit fabric should be smooth to avoid any uneven compression of the skin. Warp knitted fabrics, which were made on warp knitting crochet machine, have been selected as the subject of studies. Four guide bars are using for producing the samples. One is for chain loops from nylon treads. Second is paving the elastomeric longitudinal thread with a preliminary elongation. Elastomeric longwise threads are providing the necessary strain of knitted fabric. Two other guide bars are laying transverse weft from nylon treads too. They cross-connect the single chains into a fabric and create a smooth surface in addition. The authors have researched the structure parameters and properties of warp knitted fabric. The influence of elastomeric thread on physical and mechanical properties has been established.