non-woven fabric
Technical term for fabric made by bonding fibers without weaving or knitting. Common in medical, industrial, and consumer products like masks and wipes.
This mask is made of non-woven fabric.
布 is a general term for cloth or fabric, which can be woven or non-woven.
Compound of 不 (non-) + 織 (weave) + 布 (cloth). The term is a modern technical coinage.