INTRODUCTION TO BICOMPONENT YARNS
Bicomponent yarns describe filament yarns which consist of two different polymers. Those polymers can be embedded in various ways: for example by the core / sheath combination or side by side as pictured below:
Thanks to this combination of polymers, bicomponent yarns have the properties of both polymers, enabling them to be applied in a range of applications like adhesion melting. With adhesion melting, the bicomponent yarn has characteristics like different melting points where the outer layer (sheath) has a lower melting temperature than the inner layer (core).