Fibre size often referred to as fineness, is one of the essential properties of fibres measured in terms of diameter or linear density. The size of natural fibres measured diameter in micrometre units. It reflects the average width along the length of the thread.
Fibre crimp refers to waves, bends, twists or curls along the fibre length. It expressed as crimps per unit length. Some natural fibres are linear; others form two-dimensional or three-dimensional crimps.
Morphology is a term used to describe the study of the physical form and structure (see below) of a material and include a broad spectre of characteristics. Fibre morphology contains macro-structure, micro-structure, the sub-microscopic and fine structure of fibres, which are only observable through a light microscope.
Elasticity (fibre) is a term used to describe the ability or level of a thread or fabric to return to its original length, shape, or size immediately after the removal of stress and tension.
Fibre to fabric engineering. It still does not exist an official fibre to fabric engineering title for this vastly wide and large industry segment as it was never undertaken by pro textile associations.