Packaging Blank Crease Layout for Stronger Pouring Corners
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing packaging blanks for pourable products, such as those used in forming Tetra Brik Aseptic packages, do not fully optimize the formation and structural integrity of packages, particularly in terms of corner formation and ease of use.
Innovation Solution
A packaging blank with a multilayer structure, featuring specific crease patterns including main and auxiliary inclined crease lines, allows for improved corner formation and user-friendly design, facilitating the production of packages with distinct top and bottom portions and a side wall, enhancing the overall package structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a typical packaging blank with standard crease patterns is used, then the package can be formed into a parallelepiped shape, but the corner design does not provide optimal handling and pouring functionality
Solution Approach 1:
The patent applies local quality by creating asymmetric corner designs where only specific corners (first and third corners) are rounded while second and fourth corners remain sharp. This localized modification optimizes handling and pouring functionality at critical locations without compromising the overall package structure or requiring changes to the entire crease pattern system.
2Stability of the object's composition
If a multilayer structure with oxygen-barrier layer is used, then storage stability is enhanced, but the device complexity increases
Solution Approach 1:
The patent employs composite materials by integrating multiple functional layers including fibrous base layer, heat-seal plastic layers, and oxygen-barrier material (such as aluminum foil or EVOH film). This layered composite structure provides enhanced storage stability through oxygen barrier properties while maintaining compatibility with standard packaging formation processes.
3Ease of manufacture
If crease lines are added to facilitate package formation, then the packaging process is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the crease pattern into distinct functional elements: primary crease lines for major folds, secondary crease lines for additional folding, and auxiliary crease lines for corner formation. This segmented approach facilitates package formation through systematic folding while allowing for tolerance in individual crease line positioning through the hierarchical structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables easier and more efficient package formation with improved corners and user accessibility, leading to enhanced structural integrity and usability of pourable product containers.
Implementation Method 1
layers of heat-seal plastic material
Implementation Method 2
layer of oxygen-barrier material (an oxygen-barrier layer)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is described a packaging blank (2; 2') having two longitudinal boundary edges (10; 11), two transversal boundary edges (10; 11) and a top crease pattern (14). The top crease pattern (14) comprises a first transversal crease line (16) and a second transversal crease line (17). The second transversal crease line (17) comprises at least two lateral portions (21), a central portion (22) and two inclined portions (23). The top crease pattern (14) comprises one or more main inclined crease lines (27) and one or more auxiliary crease lines (28). Each lateral portion (21) defines a respective imaginary endless line (24) comprising the respective lateral portion (21) and the respective inclined portion (23) defines an imaginary inclined endless line (25) comprising the respective inclined portion (23) intersecting the respective imaginary endless line (23) at an intersection point (26). Each main inclined crease line (27) intersects the respective intersection point (26) and each auxiliary crease line (28) does not intersect the second transversal crease line (17), the imaginary endless line (24), the respective intersection point (26) and the respective main inclined crease line (27).