Fiber Cup Package Nested Lid Bead Design
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Solution Overview
Problem
Existing fibre-based cup packages, such as those made of plastic-coated packaging board, often lack a lid that can be easily opened and closed, and when lids are provided, they are not designed for resealing, limiting their functionality and versatility.
Innovation Solution
A cup package design featuring a lid that is partially nested within the cup, with beads on the cup and lid edges for grip and stiffness, allowing for easy opening and closing, and manufactured using the same fibre-based material as the cup, utilizing heat and moisture to form the beads for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lid is added to a fibre-based cup package, then the package can be closed, but the lid cannot be easily opened and closed repeatedly
Solution Approach 1:
The lid is partially nested in the cup, with the rim of the lid fitting into the cup mouth. This nested configuration provides a secure seal while allowing the lid to be easily removed and reinserted, enabling repeated opening and closing operations.
Solution Approach 2:
Beads are formed at specific locations on the cup mouth and lid rim to provide localized grip points. These beads enhance the ease of operation by giving users something to grip, while the overall nested structure maintains the seal capability.
2Adaptability or versatility
If the lid is made from fibre-based material, then it matches the cup material, but the lid lacks stiffness for easy handling
Solution Approach 1:
A bead is formed at the rim of the lid to provide localized structural reinforcement. This bead increases the stiffness and rigidity of the lid at the critical edge area, improving handling ease while maintaining compatibility with fibre-based cup materials.
3Reliability
If adhesion between lid and cup is enhanced, then the seal is improved, but the lid becomes difficult to open
Solution Approach 1:
Beads are formed at the cup mouth and lid rim to create localized adhesion points. These beads provide sufficient seal quality through focused contact areas while maintaining ease of opening by concentrating the adhesion force at specific grip points rather than distributing it across the entire lid surface.
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
Enables a cup package that can be readily opened and closed, providing a secure seal and easy handling, suitable for various products, including drinks and dry snacks, with the ability to be manufactured using conventional techniques for fibre-based materials.
Implementation Method 1
The purpose of the bead disposed at the edge of the lid, which can be produced by mechanical moulding by folding or winding the lid material, is to stiffen the lid, giving it resistance to slight compression as the user grips the lid and lifts or tears it off the cup mouth
Implementation Method 2
adjacent beads provided at the cup mouth and the edge of the lid to serve as grip bases when the lid is opened
Implementation Method 3
A mouth roll is manufactured at the final stage of the cup production by bending and/or pressing the board at the cup mouth by means of a moulding tool with utilisation of heat and any adjuvants and humidification of the board
Data Source
AI summary
The invention relates to a cup package made of a fiber-based material and to a method for manufacturing it. The package comprises a cup 1 for the product 9 to be packaged and a lid 2 for closing the cup mouth. In accordance with the invention, the lid is partially nested in the cup, the adhesion between the inner surface of the cup and the lid retaining the lid in position. Adjacent beads, such as mouth rolls 5, 8 have been formed at the mouth of the cup and the edge of the lid, the beads acting as solder bases for the user's fingers/when the package is opened. The lid can be formed by connecting a discoid centre 6 and a surrounding frame 7 and by equipping the frame with a mouth roll by a technique corresponding to the manufacture of a cup formed of a bottom 4 and a mantle 3 connected to this.