Packaging Sealing and Folding Process for Hollow Chocolate
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Solution Overview
Problem
Existing methods for packaging hollow chocolate figures are complex and rely heavily on limited sealing areas for tightness and aesthetics, requiring multiple process steps and high procedural complexity.
Innovation Solution
A method where folding and sealing processes are integrated, allowing the sealing material to adapt to the preformed fold, achieving a strong and reliable connection with reduced procedural complexity, using pre-folding and heat application to create a force-fit and form-fit joint along the fold line, and employing sealing stamps and cooling elements to control heat and pressure effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the edges are sealed in a narrow, limited area only (distal area), then the aesthetic appearance is improved, but the sealing reliability and tightness are compromised
Solution Approach 1:
The patent applies different sealing qualities to different areas of the edge: the distal area receives a narrow seal for aesthetic purposes, while the proximal area receives an extended seal for reliability. This local differentiation allows each area to fulfill its specific function optimally.
Solution Approach 2:
The sealing process is segmented into two distinct zones along the edge: a first seal in the distal area and a second extended seal in the proximal area. This segmentation allows the packaging to achieve both aesthetic appeal and sealing reliability through differentiated treatment of edge regions.
2Reliability
If multiple process steps are used for folding and sealing separately, then the sealing reliability is improved, but the procedural complexity increases
Solution Approach 1:
The patent merges the folding and sealing operations into a single integrated process step. The sealing tool simultaneously performs both functions, eliminating the need for separate folding and sealing steps while maintaining sealing reliability through the extended seal in the proximal area.
Solution Approach 2:
The edge is pre-folded before the sealing operation, creating a preformed fold structure. This preliminary action allows the subsequent sealing step to focus solely on creating the sealing connection, simplifying the overall process while ensuring reliability.
3Reliability
If high temperature is used for sealing, then the sealing effectiveness is improved, but the chocolate product integrity is compromised
Solution Approach 1:
The patent applies localized heat treatment through the sealing tool, concentrating thermal energy only at the edge area where sealing is required. This local quality approach ensures effective sealing while preventing heat damage to the chocolate product in the cavity.
Solution Approach 2:
The sealing tool acts as an intermediary that transfers heat selectively to the edge and sealing material. This intermediary mechanism allows controlled heat application for sealing effectiveness while protecting the chocolate product from harmful thermal effects through targeted energy delivery.
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 method produces a tight, aesthetically pleasing packaging with a simplified process, ensuring effective sealing without compromising the chocolate's integrity, using lower temperatures and targeted heat application to maintain product quality.
Implementation Method 1
the plastic layers are located between the edges that lie on top of each other and are connected to one another, for example by heating, at certain sections of the edges, resulting in a bonded connection that can then be folded
Implementation Method 2
The sealing tool can also have a cooling element with which a sealed area can be cooled again from the inside
Data Source
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AI summary
The invention relates to a method for manufacturing packaging for a food product, in particular a hollow shaped chocolate article. In the disclosed method, two half-shells are provided, each of which includes a pre-shaped, curved thin foil having an edge that projects peripherally, a food product is introduced between the half-shells, the edges of the half-shells are coupled to one another such that the two half-shells accommodate the product in a cavity, a sealing layer being provided in at least some sections between the edges, and the edges are joined to one another using a sealing and folding process. In order to be able to carry out said method as easily and conveniently as possible, effectively seal the half-shells at the edges and obtain packaging that is esthetically appealing from the outside, the sealing process is performed at the same time as the edges are folded or after the edges have been folded. The disclosed manufacturing method results in packaging in which the sealed portion extends transversely across the fold line.