In a groundbreaking innovation for the wearable technology landscape, researchers at Washington State University (WSU) have introduced a novel 3-D ink printing technique that tremendously augments the comfort, durability, and smart fabrics. Published in ACS Omega, the study brings about a foremost progression in incorporating sensors into textiles while safeguarding their flexibility and softness. These are the two fundamental challenges in the realm of wearable tech design.
Under the headship of textile researcher Dr. Hang Liu, the WSU research makes use of direct ink writing 3-D printing to deposit a conductive solution of polybutylene succinate and carbon nanotubes onto fabric surfaces. This biodegradable polyester is well known for its effective compatibility with natural fibres, providing the printed textiles with extraordinary strength, conductivity, and resistance to washing.
This can be used in smart wearables such as socks and shirts which analyse running patterns and monitor heart rate respectively and have brought about a significant transformation in healthcare, athletics, and military applications. In contrast, many earlier innovations have resulted in rigid or stiff garments that deteriorate with laundering or wear. Liu’s methodology surmounts these challenges by effective and efficient use of a printing solution that steadfastly adheres to fabric fibers, permitting the material to hang on to its performance through 20 laundry cycles as well as 200 abrasion cycles.
Additionally, the team used Cyrene, a non-toxic and biodegradable solvent, to process the ink and framing a distinguished effort toward massive sustainable production mechanisms. The findings stem from the doctoral research of Zihui Zhao, conducted under the mentorship of Dr. Liu.
