FEATURES OF THERMAL STABILISATION OF FLAX-CONTAINING “STRETCH” FABRICS

The analysis showed that achieving 15…30 % elasticity requires an input of textured yarns of about 40 %, while the same effect can be achieved by inputting 2…4 % elastane yarns. This makes it possible to produce stretch fabrics consisting of 96…98 % natural fibres. It is shown that the two-winding technology of joining elastane yarns with flax yarns allows the process to be carried out at a speed of at least 200 metres per minute. The article presents a laboratory technique for determining the process parameters for thermal stabilisation of flax-containing stretch fabrics to ensure a given elastic elongation of the fabric in the transverse direction. The possibility of producing stretch fabrics with a natural fibre content of at least 96 % is shown. The modes of fabric heat treatment to obtain elastic elongation from 12 to 36 % are given. The presented technique can be recommended for use in production conditions at the initial stage of industrial technology development.