Single-Ply Liner Label Roll Tension Reduction
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Solution Overview
Problem
Liner-based adhesive rolls in auto applicator machines face issues with liner breakage due to tension, limiting label capacity and increasing waste, and the three-ply approach is costly and generates excessive waste.
Innovation Solution
A liner-label combination featuring a partially perforated inner label with adhesive deadener allows for easy separation and reapplication, reducing tension and waste while maintaining adhesive strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a three-ply liner-label structure is used to enable label removal and reapplication, then label versatility is improved, but manufacturing cost increases and waste generation increases
Solution Approach 1:
The patent extracts the adhesive function from the label substrate itself and places it on a separate liner substrate. The label substrate becomes adhesive-free, while the liner substrate carries the adhesive coating. This separation eliminates the need for multiple liners while maintaining the ability to remove and reapply labels, as the adhesive remains on the liner that stays with the package.
Solution Approach 2:
The patent creates a composite structure where the liner substrate and label substrate are combined temporarily during application, then separated. The liner substrate with adhesive coating serves as a temporary carrier that can be cleanly separated from the label substrate after application, enabling label removal without damaging the label or leaving excessive residue.
2Adaptability or versatility
If a three-ply liner-label structure is used to enable label removal and reapplication, then label versatility is improved, but waste generation increases
Solution Approach 1:
The patent extracts the adhesive function from the label substrate and places it on a separate liner substrate. This allows the label substrate to be removed cleanly from the package without the adhesive, while the liner substrate with adhesive remains on the package. This reduces waste by eliminating the need to discard additional substrate layers.
3Productivity
If conventional liner-based adhesive rolls are used in auto applicator machines, then label application efficiency is improved, but liner breakage occurs due to tension limiting label capacity
Solution Approach 1:
The patent extracts the adhesive coating from the label substrate and places it on the liner substrate. This creates a system where the liner with adhesive serves as the feed mechanism, and the adhesive-free label substrate is easily separated and applied to packages. This separation reduces tension on the liner during high-speed processing, preventing breakage and enabling larger label capacities.
4Strength
If adhesive is coated on the entire backside of the label substrate, then adhesive strength is improved, but the ability to remove and reapply labels is reduced
Solution Approach 1:
The patent applies adhesive only to the liner substrate, not the label substrate. The label substrate remains adhesive-free, allowing it to be cleanly separated from the liner after application. This local differentiation of adhesive placement enables both strong initial adhesion (through the liner-adhesive bond) and easy removal/reapplication (through the adhesive-free label surface).
Data Source
AI summary
A single-ply liner label combination and liner-label combination roll are provided. Each liner label combination including a liner substrate and a label substrate. The label substrate including at least one inner and partially perforated second label. The backside of the label substrate including adhesive but a first portion of an area of the backside that corresponds to the inner and partially perforated second label including an adhesive deadener applied over the adhesive within the first portion. A second portion of the area retains the adhesive in a pattern along a periphery of the backside that corresponds to the inner and partially perforated second label.