Process for making laminated film article having inflatable chambers

摘要

An inflatable laminated article is prepared by contacting a first film ( 8 ) with a second film ( 10 ), and heating selected portions of at least one the first and second films to a temperature above a fusion temperature of the first and second films, so that the first and second films are heat sealed to one another. The heat sealing is carried out in a pattern which provides a plurality of inflatable chambers between the first film and the second film. The first and second films are for warded at a speed of at least "0.6096 m/s" (120 feet per minute) while coming into contact with one another. The heating is carried out by contacting the first film with a heated raised surface roller ( 16 ) having a release coating thereon.