3D Code Embossing in Packaging Molding
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Solution Overview
Problem
Existing methods for coding packaging containers, such as using stickers or printed barcodes, are complex, prone to damage during the shaping process, and do not facilitate easy recycling or fraud prevention, while also contributing to environmental issues due to non-recyclable materials.
Innovation Solution
A method that integrates three-dimensional codes into the surface of packaging containers during the shape-forming process using a shaping tool mold, eliminating the need for additional application methods and ensuring the code is permanent and readable from any side, even in damaged states, through a shape-changing treatment that converts two-dimensional data into three-dimensional patterns using laser devices or other contact-free methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If barcodes are printed on the packaging container before shaping, then the code is already present on the container, but the printed surface will be damaged during the shaping process
Solution Approach 1:
The code is prepared in advance as a digital template and integrated into the molding process, but the actual coding occurs during shaping rather than before, avoiding premature printing that would cause damage
Solution Approach 2:
The patent replaces traditional printing methods with a molding-based coding system where the code is formed as a relief structure during the shaping process itself, eliminating the need for separate printing operations that would be damaged
2Adaptability or versatility
If stickers are used to apply barcodes, then the code can be applied after production, but the stickers can be deformed or torn off and may be pasted over or exchanged
Solution Approach 1:
The coding process is merged with the container production process itself. The code is formed as an integral part of the container surface during molding, eliminating separate application steps and ensuring the code becomes permanent and不可分离
Solution Approach 2:
The digital code template is copied into the physical relief structure during molding. The code pattern is transferred from digital form to a permanent three-dimensional relief structure that is part of the container itself
3Productivity
If barcodes are applied to packaging containers, then fast payment by reading out barcodes is enabled, but the barcodes must be found at a specific position and the container may need to be tilted
Solution Approach 1:
The code is transformed from a two-dimensional printed pattern into a three-dimensional relief structure. This allows the code to be read from multiple angles and positions, eliminating the need for precise positioning and tilting operations during scanning
4Stability of the object's composition
If packaging containers are made from plastics materials, then they are dimensionally stable and suitable for storage, but they are not subject to specific recycling cycles and contribute to environmental problems
Solution Approach 1:
The embedded code provides feedback information about the container material type and recycling category. This enables automated sorting systems to identify and route containers to appropriate recycling streams, creating a feedback loop that improves recycling efficiency
Solution Approach 2:
The patent uses varying depths and patterns in the relief code structure to encode different material types and recycling information, similar to how color changes convey information. Different code patterns indicate different plastic types or recycling categories
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
This solution allows for permanent, readable codes on packaging containers that can be easily identified and recycled, preventing fraud and ensuring environmental sustainability by enabling the sorting of materials based on embedded digital watermarks, even when containers are damaged, thus promoting recycling and reducing waste.
Implementation Method 1
introducing the three-dimensional code pattern into a surface of the tool mold or of mold inserts that can be arranged in the tool mold by means of a laser device
Implementation Method 2
introducing the three-dimensional code pattern into a surface of the tool mold or of mold inserts that can be arranged in the tool mold by means of a laser device
Data Source
AI summary
The invention relates to a method for coding a dimensionally stable packaging container or an associated component made of a plastics-based and/or paper-based material composition, the packaging container being suitable for storing consumer goods such as food, washing agents, etc., wherein, during a shape-forming process for forming the three-dimensional packaging container or the associated component by means of a shaping tool mold, at least one outer and/or inner side undergoes, in at least one position, a shape-changing treatment acting on its first surface in order to produce at least one three-dimensional code.