By Zhong, Wen
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Extra resources for An introduction to healthcare and medical textiles
Other compound fabrics less likely to be used in the healthcare and medical textiles and will not be discussed in this book. Fiber-Reinforced Composites 33 3D (three-dimensional) textile structures are mostly used for specific advanced applications. Currently, 3D textile structures can be fabricated by 3D braiding or weaving techniques. The braiding technique is used to bring about a textile structure by diagonal intersection of yarns or filaments. 2D braiding produces flat strip or tape, while 3D braiding provides tubular- or rod-shaped textile structures.
Any direction other than the lengthwise and crosswise is named as the bias direction. , the way one set of yarns moves over and under 28 TEXTILE MATERIALS AND STRUCTURES the other set of yarns) to form a fabric. A weave repeat is the smallest number of warp or weft yarns on which an interlacing pattern can be represented. 16 is indicated as enclosed in the dashed frame. A float is the length of a yarn (in terms of the number of intersecting yarns it passes over) that floats on the surface of a fabric between adjacent intersections.
The process of electrospinning is as follows. Solution ready for the spinning is delivered to a stainless spinneret via a syringe pump. A high voltage power supply applies voltage up to 30 kV between the spinneret and a grounded fiber collector, where the pendant drop of polymer solution at the nozzle of the spinneret becomes highly electrified and the repulsive electrostatic forces overcome the surface tension, causing a charged jet of fluid to be ejected. Charges on the polymer jets lead to “splaying” or splitting of the jet into finer filaments, which are deposited on the collector after solvent evaporation.
An introduction to healthcare and medical textiles by Zhong, Wen