Researchers in Germany have developed a laser-based method that can seal paper packaging by fusing wood-derived fibers directly, eliminating the need for adhesives or plastic coatings. The work, ...

In the packaging war between paper and plastic, plastic has remained indispensable – even in paper products – through one vital aspect: sealing. Until now, reliable paper seals have required adhesives ...

When paper dries and is subsequently rewetted, its properties change permanently. This phenomenon is known as hornification.

Most scholars cite the invention of paper as occurring in AD 105 when an eunuch in the Han court named Cai Lun created a papermaking process that was reported to the Chinese Emperor by Ts’ai Lun, an ...