Abstract A machine for thermic coupling a fabrics in general and collars in particular with a reinforcing interlining, provided with a layer of adhesive means, characterized in that it includes: two belts conveyors, one upper and one lower belt conveyor; cooperating with each other, between which the fabrics to be coupled with each other are held in pressed condition and supplied to the various phases of treatment, a heating means consisting of an infra-red ray source and a warm air flow, two pressure rollers over which move the aforesaid belt conveyors, the speed of which may be varied, disposed in a lowered position relative to the pressure rollers and a cooling means consisting of a fan disposed immediately after the pressure rollers and feeding in cool air to cool the obtained coupled fabric.