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Aluminum Foil Overprint Varnish: Formulation & Testing Guide
07/04/2026
In flexible packaging printing, aluminum foil — whether the harder 0.2–0.25 mm variety or the softer 0.07–0.09 mm grade — receives what the industry calls overprint varnish (OP varnish), also known as gloss coating or OP protective agent...
Cold-Form Aluminum Blister Packaging: BOPA/Al/PVC Guide
06/22/2026
Pharmaceutical aluminum-plastic blister packaging, commonly known as PTP (Press-Through-Pack) packaging, works by forming cavities in a packaging film via heated vacuum forming or cold forming, filling each cavity with a tablet or capsul...
Paper-Aluminum-Plastic Pharma Film: Gravure, Solvent-Free Lamination
06/21/2026
Paper-aluminum-plastic composite films are widely used in pharmaceutical packaging for powders and granules. Compared to plastic-aluminum-plastic structures common in the market, the paper-aluminum-plastic structure offers three key adva...
Frozen Prepared Food Packaging: Vacuum, Foil and Freezing Guide
06/16/2026
I. Packaging Methods and Formats 1. Vacuum Bag Packaging An alternative to filling products into formed plastic tray pouches is vacuum bag packaging, widely used in frozen foods. For thicker, heavier products such as pig trotters or lar...
Pharmaceutical Blister Packaging: Materials, Process, Equipment Guide
06/13/2026
Blister packaging for pharmaceuticals comes in various sizes and shapes — blister cavities, trays, and cartons of different dimensions depending on the packaged product. Some use backing substrates while others do not. Blister pack...
Pharmaceutical PTP Aluminum Foil Printing Process Guide
05/24/2026
Pharmaceutical PTP (Press-Through-Pack) aluminum foil printing is one of those processes where precision manufacturing and regulatory compliance collide head-on. Every foil sheet coming off a converting line needs to protect drug effica...