The thermal bond unit consists of two heated rolls. Typically, one roll is patterned and the other is smooth. Air cylinders may be used to apply minimal pressure between the anvil and the pattern roll.
Hot-Melt Adhesive Bonding
Hot-melt glue is loaded into a heated tank. The glue is melted and pumped to an applicator head. In many cases, the glue head is allowed to contact the web during the glue application. The glue applicator may include electronics to apply the glue in a preset pattern.
The mechanical bonding unit consists of two rolls. Usually, one roll is patterned and the other is smooth. Air cylinders, or other methods, may be used to apply the required bonding pressure between the anvil and the pattern roll.