
Structure of a knitted FCB. Credit: Proceedings of the Royal Society A 8 November 2014 vol. 470 no. 2171 20140472. doi: 10.1098/rspa.2014.0472
Researchers at The Hong Kong Polytechnic University have developed a computerized knitting technology that creates fabric circuit boards (FCBs). In their efforts, the researchers combined electrically conductive fibrous metal materials with normal fabric materials using new computerized knitting technology. The result is a three-dimensional material that can withstand stretching, washing and drying, strong forces and twisting.
With this new technology, it is possible that an entirely new line of products will surface. The mechanics would offer wearable devices that are actually a part of clothing. FCBs can direct electricity from one part of a garment to another and offer mechanical support even as they electrically connect discrete electronic components. They can create an entire shirt, or just a portion. This would allow for solar collection or the use as a multi-sensory device, recording heat, perspiration, heart rate, etc.
The researchers say that their FCBs are ready for use. This new technology affords three-dimensionally deformable, highly stretchable, permeable, durable and washable fabric circuit boards.