VERFAHREN ZUR HERSTELLUNG EINES BLISTERBORDS UND VORRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

摘要

Thermoforming process in which different parts of sheet to be thermoformed are heated to different extents is particularly useful for a combined thermoforming and heat sealing process using common heating step. Different degrees of heating may be obtained using a heat insulating mask.