Laminated packaging material, converting unit for manufacturing a laminated packaging material, and method for manufacturing a laminated packaging material
The continuous in-line method for laminated packaging material manufacturing addresses uneven moisture issues by simultaneous printing and drying with a transparent layer, achieving consistent moisture levels and reducing defects in the packaging material.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- TETRA LAVAL HOLDINGS & FINANCE SA
- Filing Date
- 2025-12-11
- Publication Date
- 2026-06-18
AI Technical Summary
Existing methods for manufacturing laminated packaging materials face issues with uneven moisture content in the paperboard layer due to uneven ink drying, leading to potential cracking or defects in the final packaging containers.
A continuous in-line method involving ink-jet printing a decor layer and applying a transparent layer on the paperboard, followed by simultaneous infrared radiation drying, with the transparent layer mitigating uneven moisture distribution by absorbing infrared energy and maintaining a consistent moisture level across the paperboard layer.
The method ensures a moisture content variation of less than 4% across the paperboard layer, preventing cracking and ensuring high-quality packaging material production by minimizing overexposure and maintaining even moisture levels.
Smart Images
Figure 1 Figure 2