Definition & Core Function
Bottomless cold lamination film is a pressure-sensitive adhesive film designed for encapsulating printed materials without thermal activation. Its "bottomless" construction (no pre-sealed edge) enables continuous-roll application, making it ideal for oversized or variable-length substrates.
Material Composition
1. Top Layer: BOPP (biaxially-oriented polypropylene) or PET (polyester) film
2. Adhesive: Low-tack or permanent acrylic PSA (pressure-sensitive adhesive)
3. Release Liner: Silicone-coated paper backing (removed during application)
Key Advantages
1. Zero Thermal Distortion – Safeguards latex/eco-solvent prints
2. Infinite Length Capacity – No seam limitations for banner lamination
3. Instant Processing – No machine warm-up required (unlike hot laminators)
4. UV Stability – 5+ year outdoor durability (with UV-inhibited formulations)
Industrial Applications
1. Grand-Format Graphics – Vehicle wraps, building murals (>10ft lengths)
2. Digital Print Protection – Latex/UV prints prone to heat deformation
3. Synthetic Material Bonding – PVC-free media, recycled substrates
4. Tactile Surface Creation – Embossed textures for ADA signage