Verfahren und Vorrichtung zur Behandlung von Kunststoffmaterial

摘要

The invention provides an improved method and apparatus for the reticulation of cellular material such as polyurethane foam, by means of which a continuous sheet of foam can be reticulated in a continuous fashion. The sheet is held between platens, the air in the cells of the sheet is replaced by a combustible gaseous medium which is then ignited resulting in reticulation of the foam. The sheet can then be advanced through the platens and an adjacent unreticulated portion then subjected to a repetition of the method.