Abstract:
Purpose – To produce a coated fabric, a base fabric may be completely or partially coated with a
polymer layer, which changes the properties of the new system relative to the base fabric. The purpose
of this paper is to analyze the influence of the thermal transfer material and its shape on the
deformability of knitted fabrics during the uniaxial extension and to determine the residual
deformation of the thermoplastic transfer element of coated fabrics after unloading.
Design/methodology/approach – Knitted fabrics were partially and entirely coated with heat
transfer material. For partial coating, square pieces of three different transfer materials were bonded
on the middle of the specimen. They were solid, perforated with either nine circular holes or six
rectangular holes. A heat seal press was used to laminate knitted fabrics. The samples were subjected
to uniaxial tensile testing. The characteristics such as strain at maximum force, strain at break,
and strain at low stress were measured. After stretching and relaxation of the specimens, the residual
deformation of the heat transfer element was also investigated.
Findings – The results indicated that coating knitted fabrics with transfer material may decrease
their stretchability. The experiments show that the decrease in stretchability and in the degree of
residual deformation after stretching and relaxing depend on the knitted structure, the shape of the
transfer element, and the degree to which the fabric is coated.
Originality/value – This study examines the influence of heat transfer material which may be not
only entirely but also partially joined with knitted fabric layer on the deformability and shape stability
of this system.
