Multi-Layer Seal With Pre-Formed Separation Lines
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Solution Overview
Problem
Existing multi-layer products for sealing containers lack efficient and easy-to-use designs for releasable portions and adhesive layers, which complicates the process of sealing and dispensing consumer products.
Innovation Solution
A multi-layer product with pre-formed lines of separation defining releasable portions, an adhesive layer, patches associated with these portions, a release layer, and a second layer with removable portions and flap portions, allowing for clean and easy separation and re-adhesion to create a secure seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing multi-layer products use traditional sealing designs without pre-formed separation lines, then the seal structure remains simple, but the sealing process becomes complex and difficult to use
Solution Approach 1:
The seal is divided into multiple layers (first layer, adhesive layer, second layer) with pre-formed lines of separation that allow clean separation between layers. This segmentation enables easy peeling and sealing operations while maintaining structural integrity during use.
Solution Approach 2:
Pre-formed lines of separation are created in advance during manufacturing, allowing users to easily separate and peel layers without requiring additional tools or complex actions. The flap portion is pre-configured to facilitate the sealing motion.
2Reliability
If existing seals lack removable portions and flap portions, then the structure remains simple, but the re-adhesion and sealing effectiveness are reduced
Solution Approach 1:
The flap portion is nested within the seal structure, allowing it to be folded back and re-adhered to the second layer. This nested configuration enables multiple sealing cycles while maintaining a compact overall structure.
Solution Approach 2:
Different regions of the seal have different properties: the first layer has pre-formed separation lines for easy peeling, the adhesive layer provides bonding, the second layer has removable portions for access, and the flap portion enables re-sealing. Each local region is optimized for its specific function.
3Ease of manufacture
If existing seals use continuous adhesive layers without patches, then manufacturing is simpler, but control over adhesion areas is reduced
Solution Approach 1:
The adhesive layer is segmented into discrete patches rather than a continuous layer. Each patch is positioned at specific locations to provide controlled adhesion where needed, allowing flexibility in sealing different container configurations while simplifying manufacturing through modular adhesive application.
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 easy and secure sealing and dispensing of consumer products by allowing for clean removal and re-adhesion of layers, improving the usability and effectiveness of the seal.
Implementation Method 1
an adhesive layer on the first layer
Implementation Method 2
a release layer between the second layer and the adhesive layer
Data Source
AI summary
A multi-layer product as a seal includes a cover layer having an adhesive layer and a backing layer with a release layer. The cover layer has a first part including one or more releasable portions, each having an associated patch. The backing layer has a pre-formed line of separation that extends across the seal from the first edge to the second edge and separates the backing layer into a first part and a second part. The second part of the backing layer includes at least one removable portion at an edge thereof. Each removable portion is defined by one or more pre-formed lines of separation. The cover layer has a second part including at least one flap portion each of which is substantially coincident with a respective one of the removable portions and defined by one or more pre-formed lines of separation in the second part of the cover layer.