Fabric lamination machine mainly use a  gravure (concave) glue roller for gluing fabric,

it gluing is uniform and the glue amount is relatively accurate.

When lamination fabric, the gluing amount is mainly related to the pit depth of the glue roller.

The deeper of the glue roller, the more the amount of glue will be transferred to the fabric.

On the other hand, the shallower the pit depth, the smaller the amount transferred to the fabric.