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Structure of Retort packaging bag

Packaging requirements of Retort packaging bag: For meat, poultry, etc. packaging, the packaging is required to have good barrier properties and be sterilized without breaking, cracking, shrinking, and odorless under cooking conditions.

Design structure of Retort packaging bag:

Transparent category: BOPA/CPP, PET/CPP, PET/BOPA/CPP, BOPA/PVDC/CPP

PET/PVDC/CPP, GL-PET/BOPA/CPP

Aluminum foil: PET/AL/CPP, PA/AL/CPP

PET/PA/AL/CPP, PET/AL/PA/CPP

Design reason for Retort packaging bag:

PET: high temperature resistance, good rigidity, good printability, and high strength.
PA: High temperature resistance, high strength, flexibility, good barrier properties, and puncture resistance.
AL: Best barrier properties, high temperature resistance.
CPP: High temperature resistant cooking grade, good heat sealability, non-toxic and tasteless.
PVDC: high temperature resistant barrier material.
GL-PET: Evaporated ceramic film, good barrier property, microwave transparent.

Choose a suitable structure for specific products. Transparent bags are mostly used for cooking, and AL foil bags can be used for ultra-high temperature cooking.

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