SYSTEM AND METHOD FOR FORMING AN INDICIA FOR USE IN VACUUM PACKAGING

摘要

A vacuum bag comprising two panels wherein each panel comprises a gas-impermeable base layer (108) and a heat-sealable inner layer (106) with at least one panel having indicia (224). A method for forming such a bag between a cooling roll (104) and laminating roll (102) includes feeding a gas-impermeable material to a nip formed between the rolls. Resin is extruded to the nip such that the resin fills a plurality of cavities of the cooling roll (104), forming an inner layer (106) that adheres to the gas-impermeable material. A resultant sheet is then folded to form the panels and sealed such that an envelope is formed.