Adhesive Label Release Liner with Tapered Weakness Lines

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Solution Overview

Problem

Conventional adhesive-backed identification labels in the airline industry often fail to detach correctly due to improper separation at the full perforation, leading to excessive adhesive exposure, label damage, and the need for reprinting, resulting in wasted material and increased costs.

Innovation Solution

The proposed label design features a substrate with a layer of adhesive and a release liner that includes tapered or curved lines of weakness, facilitating controlled separation and minimizing adhesive exposure, thereby preventing unintended adhesion and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a full perforation is used across the entire backing liner tab, then the label can be easily separated from the backing liner, but the separation is uncontrollable and may expose too much adhesive

Engineering Contradiction:

Improveease of separationVSAvoidprecision of adhesive exposure

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The perforation is divided into multiple segments rather than being a continuous line. The backing liner tab includes a first perforation and a second perforation that are separated by an unperforated portion, allowing controlled separation while preventing excessive adhesive exposure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the backing liner have different properties - the tab portion has perforations for easy removal, while the main body portion has a continuous adhesive layer that remains controlled during separation

Inventive Principle:

Principle #3Local quality

2Productivity

If the backing liner tab is pulled quickly during rush conditions, then processing time is reduced, but the separation at the perforation may fail and cause label damage

Engineering Contradiction:

Improveprocessing speedVSAvoidreliability of separation

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The perforation is pre-formed as a discontinuous pattern with specific geometric characteristics that guide the separation process, ensuring that even quick pulling actions result in proper separation at the intended location rather than failure or excessive exposure

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If too much adhesive is exposed during separation, then the label can be easily applied, but the label may inadvertently adhere to surfaces and become damaged

Engineering Contradiction:

Improveease of label applicationVSAvoidunintended adhesion and damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The design allows for partial exposure of the adhesive layer through the discontinuous perforation pattern, providing just enough adhesive exposure for proper application while preventing excessive exposure that would cause unintended adhesion to surfaces or self-adhesion

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8167336B2Identification labels and methods of using the same

Publication Date: 2012.05.01 MOORE WALLACE NORTH AMERICA INC

AI summary

Labels and methods for removing a portion of a release liner from a label are disclosed. An example labels includes a substrate, a layer of adhesive on the substrate, a layer of release coating in contact with the layer of adhesive, and a release line in contact with the release coating. The release liner includes a first edge, a second edge, and a first line of weakness. The first line of weakness includes a tapered or curved portion and extends from the first edge of the release liner to between the first edge and the second edge of the release liner.