Composite Packaging Blank Crease Lines for Non-Rectangular Shapes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for producing packaging from composite materials are limited to angular cross-sectional designs, requiring high forming forces that can compromise the integrity of seams and restrict design freedom, making it difficult to create packaging with non-rectangular or non-angular shapes and ensuring liquid/gas tightness.
Innovation Solution
A composite blank with strategically placed crease lines that intersect and displace material, allowing for deformation without bursting or delamination, enabling the production of packaging with varied cross-sectional shapes while maintaining seam integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If high forming forces are applied to create packaging from composite blanks, then packaging with varied cross-sectional shapes can be produced, but the integrity of seams and liquid/gas tightness is compromised
Solution Approach 1:
The groove lines are pre-formed in the composite blank before the forming process. These groove lines create predetermined deformation paths that guide the material flow during forming, allowing the blank to be shaped into non-rectangular cross-sections without requiring excessive forming forces that would compromise seam integrity
Solution Approach 2:
The groove lines are strategically positioned at specific locations on the composite blank where material deformation is most needed. By concentrating deformation capacity at these localized areas, the overall forming forces required are reduced, preserving seam integrity while enabling varied cross-sectional designs
2Adaptability or versatility
If conventional folding methods are used for composite packaging blanks, then angular cross-sectional designs are achieved, but design freedom for non-rectangular shapes is restricted
Solution Approach 1:
The groove lines are pre-formed in the composite blank before the forming process. These groove lines create predetermined deformation paths that guide the material flow during forming, allowing the blank to be shaped into non-rectangular cross-sections without requiring excessive forming forces that would compromise seam integrity
Solution Approach 2:
The invention changes the physical state of the composite material by introducing groove lines that modify the material's deformation characteristics. These groove lines allow the material to deform more easily in specific directions, enabling non-rectangular cross-sectional shapes while maintaining manufacturing feasibility
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
The invention relates to a blank containing at least the following as composite components: a first polymer layer facing a first environment side; a carrier layer following the polymer outer layer toward a second environment side; a barrier layer following the carrier layer toward the second environment side; an adhesion layer following the barrier layer toward the second environment side; and a second polymer layer, which follows the adhesion layer and which faces a second environment side, wherein the layers, or at least some of the layers, are deformed in some regions by at least a first and a second creasing line, each having a start point and an end point, wherein each creasing line extends along an imaginary line associated with the creasing line, which imaginary line corresponds to the associated creasing line with respect to the position of the imaginary line and the course of the imaginary line on the blank and extends beyond the start and/or the end of the associated creasing line by imaginary continuation of the course, and wherein the creasing lines separate regions forming lateral, gable, or bottom surfaces from each other. According to the invention, the blank comprises at least one intersection point of imaginary lines and is free of an intersection point of the creasing lines at least in the region forming lateral surfaces and/or in the region forming gable surfaces and/or in the region forming bottom surfaces or completely.