Information Carrier with Segmented Adhesive for Reusable Packaging
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Solution Overview
Problem
Existing information carriers for reusable consumption packaging struggle with residue adhesive issues when washed off, as current solutions do not effectively neutralize adhesive action at elevated temperatures.
Innovation Solution
An information carrier with a glue having a glass transition temperature below -30°C, coated with a discontinuous pattern, ensuring adequate adhesion during storage and use while facilitating easy removal with an aqueous solution at elevated temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a continuous layer of glue is used to affix the information carrier to the packaging, then adequate adhesion is achieved during storage and use, but residual adhesive remains on the packaging after washing off
Solution Approach 1:
The glue layer is segmented into a discontinuous pattern of adhesive regions rather than a continuous layer. This segmentation allows the information carrier to maintain adequate adhesion during storage and use while enabling complete removal during washing, as the discontinuous structure prevents adhesive buildup and residual formation on the packaging surface.
Solution Approach 2:
Different regions of the information carrier are given different adhesive properties. The discontinuous glue pattern creates local variations in adhesion strength, with adhesive regions providing bonding during storage and non-adhesive regions facilitating complete removal during washing. This local quality differentiation resolves the contradiction between maintaining strong adhesion and preventing residual adhesive.
2Ease of operation
If a coating is applied to neutralize the adhesive action of the glue, then the information carrier can be removed more easily, but adhesion during storage and use may be compromised
Solution Approach 1:
The coating is applied in a discontinuous pattern that segments the glue layer, creating distinct adhesive and non-adhesive regions. This segmentation allows the coating to neutralize adhesive action in specific areas to facilitate removal, while leaving other areas with sufficient adhesion strength for storage and use, thereby resolving the contradiction between removal ease and adhesion strength.
Solution Approach 2:
The coating creates local quality differences across the information carrier surface. Areas with coating provide easy removal by neutralizing adhesive action, while areas without coating maintain strong adhesion during storage and use. This local differentiation of properties resolves the contradiction between ease of removal and maintenance of adhesion strength.
3Object-generated harmful factors
If the glue layer is made thin to reduce residue, then adhesion strength during storage and use is reduced
Solution Approach 1:
Rather than uniformly thinning the glue layer, the invention segments the glue into a discontinuous pattern. This segmentation allows certain regions to have sufficient glue thickness for strong adhesion during storage and use, while the overall reduced glue coverage minimizes residual adhesive during washing, resolving the contradiction between adhesion strength and residue reduction.
Solution Approach 2:
The discontinuous glue pattern creates local quality variations in thickness and distribution. Adhesive regions maintain sufficient thickness for strong bonding, while the discontinuous nature ensures minimal overall residue. This local differentiation resolves the contradiction between maintaining adhesion strength and reducing residual adhesive.
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 allows for effective adhesion during normal and low-temperature conditions while ensuring the information carrier can be washed off without leaving residual adhesive on the packaging, using a hydrophilic coating to enhance water migration and adhesive neutralization.
Implementation Method 1
the glue has a glass transition temperature of below -30°C
Implementation Method 2
using a hydrophilic coating to enhance water migration and adhesive neutralization
Data Source
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AI summary
The present invention relates to an information carrier for a reusable consumption packaging, for instance a reusable bottle made of plastic or glass, comprising at least two sides of which a front side is provided with information and a rear side is at least partially provided with a glue. The glue has a glass transition temperature of below - 30 °C. In addition, the invention concerns a reusable consumption packaging provided with an information carrier, a method of producing washable information carriers, and a use of the method.