Re-sealable Packaging With Die-cut Release Member
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Solution Overview
Problem
Conventional re-sealable packaging solutions are inefficient and costly, as they often rely on external closures or retrofitted tabs, which can compromise the integrity of the package and increase manufacturing expenses.
Innovation Solution
A re-sealable package design featuring roll stock with a pressure-sensitive label and a die-cut release member, where the pressure-sensitive label is laminated to the inner sealant layer, allowing for easy reclosure by exposing adhesive areas after die-cutting, enabling the package to be resealed without external closures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pressure sensitive adhesive label is applied to the inner sealant layer, then the package can be easily reclosed by exposing adhesive areas, but the manufacturing complexity increases due to the additional lamination step
Solution Approach 1:
The pressure sensitive adhesive label is pre-applied to the inner sealant layer during the lamination process, preparing the reclosure mechanism in advance. This preliminary action ensures the adhesive is ready for immediate use when the package needs to be reclosed, eliminating the need for additional adhesive application steps during the reclosure operation.
Solution Approach 2:
The package structure is designed so that the reclosure mechanism serves itself through the integrated adhesive label. When the package is opened and needs to be reclosed, the user simply needs to fold the package back together, and the pre-applied adhesive automatically secures the closure without requiring additional components or actions.
2Adaptability or versatility
If a die cut release member is used to expose adhesive areas, then the package can be resealed without external closures, but the manufacturing precision requirements increase
Solution Approach 1:
The release member is created as a separate, segmented component through die cutting. This segmentation allows the release member to be precisely positioned and removed to expose specific adhesive areas, enabling controlled resealing. The die-cut design creates distinct functional zones that can be independently managed during the resealing process.
Solution Approach 2:
The die-cut release member acts as an intermediary element between the adhesive label and the package closure. It temporarily covers the adhesive during normal package handling and is then removed to expose the adhesive for resealing. This intermediary approach allows for precise control of adhesive exposure while maintaining the integrity of the overall package structure.
3Ease of operation
If the outer layer is cut completely through to form a release member, then the adhesive can be exposed for closure, but the package integrity may be compromised
Solution Approach 1:
The die-cut release member is designed with local quality variations, where the cut depth and pattern are optimized for specific functional areas. The cutting extends through the outer layer and partially through the inner sealant layer only in the specific regions where adhesive exposure is needed, while maintaining the integrity of the surrounding package structure. This localized approach allows closure operation without compromising overall package strength.
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 design provides a durable, cost-effective, and repeatable re-sealable mechanism that maintains package integrity, allowing for multiple openings and reseals while minimizing exposure to environmental conditions that cause deterioration.
Implementation Method 1
The pressure sensitive label has a first preselected shape and includes a pressure sensitive adhesive on one side
Data Source
AI summary
A re-sealable package and method which includes roll stock, a pressure sensitive label and a release member. The re-sealable package includes an outer layer laminated to an inner sealant layer. The pressure sensitive label has a first preselected shape and includes a pressure sensitive adhesive on one side. The side having the pressure sensitive layer is adhered to the inner sealant layer of the roll stock. The release member is formed in the outer layer, the release member having a second preselected shape which is smaller than the first preselected shape of the pressure sensitive label. As the release member is lifted from the pressure sensitive label, an area of the pressure sensitive adhesive is exposed to allow portions of the package to be removably adhered to the area of pressure sensitive adhesive.