An Improved Liquid Metal Mask Printing enabled Fast Fabrication of Wearable Electronics on Fabrics^.

In this paper, a new improved mask printing method of liquid metal is developed, which realizes the fast fabrication of flexible electronics on fabrics. Here, polymethacrylates (PMA) glue is printed on fabrics to improve the adhesion effect of liquid metal (EGaIn) on fabrics. Combined with mask printing, liquid metal can be directly and rapidly printed on the fabrics with PMA glue to manufacture flexible electronics, such as LED array circuit, strain sensor and temperature monitoring circuit. With combined the advantages of favorable stretchability and rapid manufacture, the improved liquid metal mask printing method provides an approach with valuable prospects for individualized wearable health care devices. Besides, this method has extensive application prospect in mass production of smart electronic fabrics.