processo para fabricação de um laminado flaxível para embalagem

摘要

In a process for continuously manufacturing a flexible laminate (10) for food packagings at least one plastic film (12) and at least one further plastic film (20), metal foil (16) or paper as laminate layers are continuously coated with an adhesive (14, 18) and brought together to form a laminate (10). Subsequently, the laminate (10) is continuously irradiated in line in a microwave irradiation station (28) in order to cure the adhesive (14, 18). With the process according to the invention the curing time is significantly reduced in comparison to the standard thermal energy used nowadays and provided by a curing room warmed at 40 - 45 °C.