PHARMACEUTICAL PACKAGING INSIGHTS

Sustainable Secondary Packaging: Transitioning to ColdSeal Blister Wallets

Published: February 25, 2026 By Prince Art Packages Technical Desk 5 Min Read
Sustainable Secondary Packaging: Transitioning to ColdSeal Blister Wallets
Pharmaceutical Secondary Packaging Infrastructure — Prince Art Packages

Why heat-free pressure bonding protects temperature-sensitive APIs and probiotics while cutting plastic packaging volume by up to 50% compared to rigid plastic clamshells.

Heat-Free, Eco-Friendly Secondary Blister Packaging

Pharmaceutical manufacturers are under dual pressure: reducing single-use plastic packaging waste while protecting delicate active pharmaceutical ingredients (APIs) from thermal degradation. Traditional heat-sealed blister clamshells require high sealing temperatures (140°C to 180°C) that risk degrading live probiotic strains, peptides, and temperature-sensitive molecules.

1. The ColdSeal Advantage

ColdSeal Blister Wallets bond two coated paperboard layers utilizing cohesive pressure pinch-rollers without applying thermal heat. The drug cavity remains at room temperature throughout packaging, ensuring 100% API potency preservation.

2. 50% Plastic Reduction

By replacing heavy thermoformed plastic clamshells and vinyl packaging with certified FSC virgin paperboard, ColdSeal reduces plastic consumption by up to 50% while offering superior recyclable credentials.

3. Built-In Dose Adherence & Child-Resistance

ColdSeal wallets provide an expansive paperboard canvas for printed day-by-day calendar grids (7-day, 14-day, 28-day) that dramatically improve patient therapy adherence. Furthermore, child-resistant push-tab locking mechanisms can be integrated to meet ISO 8317 safety compliance.

Prince Art Packages Technical Directorate

Our packaging engineering desk authors technical guidelines on ISO 9001:2015, cGMP line clearance, anti-counterfeit security, and automated cartoning line compatibility for pharmaceutical brand owners across regulated markets.

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