Calender Bonding Technology

From INDA's Nonwoven Glossary:

Calender
A machine used to bond sheets of fabric or film to each other or to create surface features on these sheets. It consists essentially of two or more heavy cylinders that impart heat and/or pressure to the sheets that are passed between them. The rollers can be mirror-smooth, embossed with a pattern or porous.

Calender bonding
Thermally bonding a web of loose fibers by passing them through the nip of a pair of
calender rollers, of which one or both are heated. Plain or patterned rollers may be used.

Calendering
A mechanical finishing process used to laminate and to produce special surface features such as high luster, glazing and embossed patterns.