INVESTIGATION OF THE PROPERTIES OF FLAX-CONTAINING FABRICS WITH ELASTANE ATTACHMENT DURING REPEATED WASHINGS
Fabrics with the attachment of elastomeric threads are now widely distributed. The addition of elastane in the form of combined threads changes their physical and mechanical properties. The paper studies the change in the properties of flax-containing fabrics with the addition of elastane, namely, thickness and breathability after several washes. It was revealed that the air permeability of fabrics decreases with an increase in the pre-tension of elastane and after repeated washings, the thickness decreases at the same time. It has been established that flax-containing fabrics with elastane embedding can have a textured surface - the density, for the evaluation of which the indicator “frequency of compression” is proposed. The frequency of compression of the fabric increases with an increase in the degree of pre-tension of the elastane, it becomes more frequent, uniform and lower wave height after repeated washes.