Resealable Label With Segmented Adhesive For Aerosol Containers
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Solution Overview
Problem
There is a need for a resealable label that can be applied using roll-fed label application equipment without requiring significant changes to the label ply materials or other labeling components, and that functions effectively on containers such as aerosol spray cans, even when the cap covers a portion of the label.
Innovation Solution
The development of a roll-fed label web that includes a label ply with features allowing non-destructive manipulation, such as active portions with selected dimensions, break paths, and accessories like removable coupons, which can be cut to create overbite or underbite areas or irregularly shaped lift tabs, and can incorporate a scratch and sniff feature, using adhesive material of low aggressiveness for secure yet resealable application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional roll-fed labels are used with standard adhesive materials, then the label adheres securely to the container, but the label cannot be opened and resealed without damage
Solution Approach 1:
The label is divided into two distinct adhesive regions: a first adhesive material applied to the leading end that provides strong initial bonding, and a second adhesive material applied to the trailing end that enables resealing. This segmentation allows each adhesive to be optimized for its specific function - the first for secure attachment and the second for reversible bonding.
Solution Approach 2:
Different adhesive properties are applied to different portions of the label. The first adhesive material at the leading end has properties optimized for strong, permanent bonding, while the second adhesive material at the trailing end has properties optimized for reversible, resealable bonding. This local differentiation resolves the contradiction between strong adhesion and resealability.
2Ease of operation
If the label ply material is modified to enable resealing, then the label can be opened and closed, but significant changes to the label materials are required
Solution Approach 1:
The resealing functionality is extracted from the label ply material itself and transferred to the adhesive materials. Instead of modifying the label substrate to enable resealing, the invention applies specific adhesive materials with predetermined properties that provide the resealing capability. This keeps the label ply material simple while achieving the desired functionality through the adhesive system.
3Adaptability or versatility
If the label is made to accommodate containers with caps, then the label can be applied to various container types, but the cap may cover and obscure important label information
Solution Approach 1:
The label design incorporates vertical positioning strategies where critical information is placed in zones that remain visible despite cap coverage. The label extends vertically along the container, and important information is positioned in the lower portion that remains exposed when the cap is applied, thus resolving the information visibility issue while maintaining container compatibility.
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 enables the creation of resealable labels that can be easily opened and resealed without damaging the label or the container, accommodating various container shapes and sizes, including those with caps, while maintaining the ability to provide extensive graphic and information surfaces.
Implementation Method 1
using adhesive material of low aggressiveness for secure yet resealable application
Data Source
AI summary
A roll-fed label web for a resealable label includes a label ply and a material that permits non-destructive manipulation of the label ply. An individual resealable label is produced when the web is cut by a label application machine. The label further includes an active portion.