This water-based blister-pack adhesive is designed for secure lamination of blister films to paperboard backings. It provides strong, permanent bonding with excellent initial tack and final bond strength, ensuring reliable seal integrity under mechanical stress and environmental exposure. The eco-friendly, low-VOC formulation supports sustainable packaging production while maintaining high compatibility with common blister films (PVC, PET) and paper substrates. Ideal for pharmaceutical, medical, and consumer goods packaging, it offers smooth application, fast drying, and consistent performance in high-speed converting processes.
Q1: What is the primary function of a blister-pack adhesive, and how does it differ from a primer?
A: The adhesive is specifically designed for laminating the blister film to the paperboard backing card, creating a permanent structural bond around the formed plastic cavity. Unlike a primer (which prepares the surface for heat-sealing), this adhesive provides the mechanical strength that holds the entire package together after the blister is sealed and die-cut.
Q2: What key performance features ensure reliable packaging integrity?
A: It offers high initial tack for immediate bonding during production, strong final bond strength to resist peeling or delamination, and excellent flexibility to withstand bending and handling without cracking. It also maintains adhesion under varying humidity and temperature conditions commonly encountered in storage and transport.
Q3: Are there specific application or curing requirements for this water-based adhesive?
A: Yes. Due to its water-based nature, uniform application and sufficient drying are critical. Infrared (IR) or hot-air drying is recommended to fully evaporate water and activate the adhesive before lamination. Proper pressure and dwell time during the laminating process are also essential to achieve optimal bond strength and consistency.