Integrated Pouring Spout with Hinged Cap for Reclosable Packaging
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Solution Overview
Problem
Existing packaging solutions for pourable products, such as Tetra Brik and Tetra Rex, require additional steps for opening and reclosing, contributing to environmental pollution due to plastic components, and there is a need for a more straightforward and cost-effective solution that reduces plastic waste.
Innovation Solution
An integrated opening device with a pouring spout and closing element, formed by injection molding directly onto the packaging material, which includes a tamper-evidence ring and a hinge mechanism to prevent cap dispersal, allowing for easy opening and reclosing while minimizing plastic usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reclosable opening devices with caps are used, then the package can be opened and reclosed, but the cap may dispersal and cause environmental pollution
Solution Approach 1:
The cap is merged with the pouring spout through an integrally connected bridge structure. The bridge connects the cap to the pouring spout at a location that ensures the cap cannot separate from the spout during use, eliminating the risk of cap dispersal while maintaining reclosability functionality.
2Ease of operation
If traditional opening devices are used, then pouring function is provided, but additional plastic components increase environmental impact
Solution Approach 1:
The opening device integrates multiple functions into a single molded structure. The pouring spout, closing element, and cap are all formed as one integral piece through injection molding, eliminating the need for separate plastic components and reducing overall plastic material usage while maintaining pouring functionality.
Solution Approach 2:
The integrated opening device performs multiple functions simultaneously: it provides pouring through the spout, sealing through the closing element, and reclosing through the cap. This multi-functionality is achieved within a single component structure, reducing the total number of parts and plastic material required.
3Ease of manufacture
If separate cap and spout components are used, then assembly is flexible, but manufacturing complexity and cost increase
Solution Approach 1:
The cap, pouring spout, and closing element are combined into a single integrated component formed by injection molding. This eliminates the need for separate assembly steps and reduces manufacturing complexity despite the multi-functional nature of the device.
Solution Approach 2:
A single molded component performs multiple functions that would traditionally require separate parts. The injection molding process creates an integral structure that provides pouring, sealing, and reclosing functions simultaneously, simplifying both manufacturing and assembly processes.
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 provides a low-cost, efficient, and environmentally friendly way to open and reseal pourable product packaging, reducing plastic pollution by ensuring the cap remains attached to the packaging, thus maintaining product integrity and minimizing environmental impact.
Implementation Method 1
The molds are then displaced towards the packaging material to reach a closed configuration, in which they cooperate with opposite faces of the packaging material and define a closed mold cavity housing the above-mentioned pierceable portion. The injection molding operation is performed by injecting the molten plastic material into the mold cavity
Data Source
AI summary
An opening device configured to be applied to packaging for pourable products comprises: a pouring spout defining a pouring opening through which to pour, in use, the pourable product; a cap configured to engage and disengage the pouring spout to respectively close and open the pouring opening; a closing element closing and/or sealing the pouring opening, formed in one piece with the pouring spout and connected to the pouring spout by a breakable connecting portion configured to break during first opening of the opening device; the closing element comprising a protruding portion extending through the pouring opening and connected to the cap; and tamper-evidence device fitted to the pouring spout and initially connected to the cap by at least one breakable connecting bridge configured to break during first opening of the opening device; wherein the cap is hinged to the tamper-evidence device thereby being permanently tethered to the pouring spout.