Bonding Label with Integrated Release Liner Protection

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Solution Overview

Problem

Conventional bonding labels face challenges in protecting top-side and backing adhesives from environmental influences during manufacturing, transport, and application, leading to potential weakening of adhesives and increased costs due to the need for additional release liners.

Innovation Solution

A bonding label design featuring a face stock with top-side and backing adhesives, protected by separate release layers at different stages, including a first release layer for bulk transport and a second release layer for post-delamination protection, allowing for efficient and cost-effective adhesive protection without additional liners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a second release liner is used to protect the top-side adhesive, then adhesive protection is improved, but cost increases significantly and waste increases

Engineering Contradiction:

Improveadhesive protectionVSAvoidwaste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent merges the protection function into the existing release liner structure by adding a protective coating to the release liner's surface. This integrates two protection functions (release liner protection and top-side adhesive protection) into a single component, eliminating the need for a separate second release liner and reducing material waste

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The release liner is transformed into a multi-functional component that serves both as a release liner for the backing adhesive and as a protective barrier for the top-side adhesive. The protective coating on the release liner enables it to perform the additional function of protecting the top-side adhesive from environmental influences

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a second release liner is used to protect the top-side adhesive, then adhesive protection is improved, but device complexity increases

Engineering Contradiction:

Improveadhesive protectionVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple protection functions into the single release liner component by applying a protective coating. This merging approach reduces structural complexity by eliminating the need for separate second release liner and simplifies the overall label construction

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If a second release liner is used to protect the top-side adhesive, then adhesive protection is improved, but manufacturing steps increase

Engineering Contradiction:

Improveadhesive protectionVSAvoidmanufacturing steps

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The protective function is integrated into the release liner manufacturing process through coating application. This single-step coating process replaces the complex multi-step process of adding and removing a separate second release liner, simplifying manufacturing while maintaining adhesive protection

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If additional release liners are used for adhesive protection, then adhesive protection is improved, but cost increases

Engineering Contradiction:

Improveadhesive protectionVSAvoidcost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The protective coating is applied as a thin, cost-effective layer on the release liner that provides adequate protection without requiring expensive additional liners. The coating serves its protective function throughout the label's lifecycle and is discarded with the label after use

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS11702268B2Bonding label

Publication Date: 2023.07.18 WS PACKAGING GROUP

AI summary

A web of labels includes a face stock and a release liner. A top side adhesive layer extends on a top surface of the face stock and a top side release liner extends over the top side adhesive layer. The top side release liner includes at least one aperture exposing a corresponding portion of the top side adhesive layer. The face stock has a second adhesive layer on a bottom surface of the face stock. The release liner has a second release layer on a top surface thereof to protect the second adhesive layer, and a third release layer on a bottom surface of the release liner. The face stock is separated into a succession of labels carried on the release liner such that each label includes a portion of the top side release liner having at least one aperture.