Paper tubes can be five times stronger than steel
Inventions
Engineers are turning microscopic wood fibers into structural armor that can withstand 1,200 pounds of pressure while decaying faster than a fallen leaf.
A new generation of packaging is borrowing a trick from the forest to replace plastic. By manipulating cellulose nanofibers—the tiny structural building blocks of wood—manufacturers like Yonwoo have created paper tubes with a tensile strength five times greater than steel by weight. These containers can withstand a crushing force of 1,200 pounds per square inch, making them rugged enough to protect luxury cosmetics in the most demanding supply chains.