Integrated process for making inflatable laminated article

摘要

An integrated process for making an inflatable laminated article is disclosed, which comprises the steps of: (A) extruding a first flat film and a second flat film; (B) cooling the first flat film and the second flat film so that the first and second flat films will not fuse to one another upon contact with each other; (C) contacting the first flat film with the second flat film; (D) heating selected portions of at least one of the first and second flat films to a temperature above a fusion temperature, so that the first and second flat films are heat sealed to one another at a selected area, with the selected area providing a heat seal pattern which provides inflatable chambers between the first flat film and the second flat film, the heating being carried out by passing the first and second flat films together in a partial wrap around a heated roller having a raised surface; and (E) winding up or transporting the first and second flat films after they are heat sealed to one another, with the inflatable chambers uninflated.