Duplex Label Liner Structure to Prevent Tearing and Binding
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Solution Overview
Problem
Conventional liners in label industry are flimsy and prone to tearing or binding up in automated labeling systems, causing production delays and are not cost-effective for strong, printable applications.
Innovation Solution
A duplex liner composed of two plies, a transparent plastic upper ply and a printable paper lower ply, fused with a binder such as synthetic latex, providing resilience and versatility while maintaining cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional flimsy liners are used, then the label can be made cheap and easy to manufacture, but the liner will tear or bind up in automated labeling systems causing production delays
Solution Approach 1:
The liner is constructed as a composite material consisting of a plastic ply (providing strength and tear resistance) and a paper ply (providing printability and cost-effectiveness). This composite structure resolves the contradiction by combining materials with complementary properties to achieve both reliability in automated systems and ease of manufacture.
2Ease of manufacture
If conventional flimsy liners are used, then the manufacturing cost is low, but the liner causes down time and costly production delays
Solution Approach 1:
The composite liner structure maintains cost-effectiveness through the use of paper (a low-cost material) while adding a plastic ply specifically for its strength properties. This selective composite approach improves productivity by preventing tears and binding issues in automated systems without significantly increasing overall manufacturing cost.
3Reliability
If a stronger liner is used to prevent tearing, then reliability improves, but the cost and complexity of the liner increases
Solution Approach 1:
The liner uses a simple two-ply composite structure (plastic and paper) that provides enhanced reliability without excessive complexity. The simplicity of the composite structure—just two layers bonded together—avoids the need for complex multi-layer constructions while still achieving the desired strength and tear resistance.
4Adaptability or versatility
If a printable liner is used, then versatility is improved, but the cost and complexity increases
Solution Approach 1:
The paper ply in the composite liner provides excellent printability and versatility for various labeling applications. By combining paper (which is easy to print on) with plastic (which provides strength), the liner achieves versatility without requiring complex printable coatings or specialized materials.
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 duplex liner is stronger than traditional liners, adaptable to various applications, and cost-effective, allowing for printed information on the label without significantly increasing overall label cost.
Implementation Method 1
said upper liner ply being fused to said lower liner ply
Data Source
AI summary
A liner for a label. The liner has a plastic ply and a paper ply. The plastic ply is fused to the paper ply with a binder. Indicia printed on the paper ply is visible through said plastic ply. The plastic ply includes a release material and a face ply of the label includes adhesive. The label includes a face ply. The plastic ply is releasably secured to the face ply.