Die Cutting Thin Pressure-Sensitive Labels Without Stretching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current die cutting technologies face challenges in reducing the size of pressure sensitive labels with thin liners below 0.5 mm, as they often result in stretching and inefficiencies, making it difficult to achieve both application and performance efficiencies while minimizing material usage.
Innovation Solution
A die cutting system that integrates with standard printing presses, uses a continuous belt to separate and re-laminate the pressure sensitive material, allowing for precise cutting without stretching the liner, and reattaches the laminated layer after cutting, enabling efficient die cutting of thin gauge materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If current die cutting technologies are used on thin liners below 0.5 mm, then material usage is reduced, but stretching and inefficiencies occur
Solution Approach 1:
The die cutting process is segmented into three distinct stages: (1) delamination of the pressure-sensitive material from the liner, (2) die cutting of the separated material, and (3) re-lamination of the cut material back to the liner. This segmentation allows each operation to be performed on the most suitable surface, eliminating stretching issues that occur when cutting through the combined structure.
Solution Approach 2:
A release liner is introduced as an intermediary carrier that temporarily holds the pressure-sensitive material during the delamination and cutting process. The material is cut while supported by the release liner, preventing stretching and distortion, and then re-attached to the original liner for final application.
2Productivity
If thin gauge materials are used to reduce label size, then application efficiency is improved, but die cutting becomes difficult and ineffective
Solution Approach 1:
The process separates the thin gauge pressure-sensitive material from the liner before die cutting, allowing the cutting operation to be performed on the material alone rather than through the combined structure. This segmentation makes die cutting of thin materials feasible and effective.
Solution Approach 2:
The pressure-sensitive material is delaminated from the liner before the die cutting operation. This preliminary separation prepares the material in an optimal state for cutting, allowing precise pattern formation without the complications of cutting through the liner-material composite structure.
3Loss of substance
If liners below 0.5 mm thickness are used, then material usage is minimized, but stretching occurs during die cutting
Solution Approach 1:
The process segments the liner and pressure-sensitive material into separate entities before die cutting. The thin gauge material is cut while supported by a release liner, preventing stretching and maintaining compositional stability, then re-attached to the original liner for final use.
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
This solution allows for efficient die cutting of labels with liners as thin as 0.5 mm, reducing material usage, minimizing stretching, and enhancing application efficiency while maintaining performance, thus offering cost savings and environmental benefits.
Implementation Method 1
adjusting, by a system, temperature of a label sheet comprising a laminated layer and a liner layer
Implementation Method 2
the laminated layer comprises a printed face stock layer attached to an adhesive layer
Data Source
AI summary
A die cutting method that cuts patterns in a label is provided. According an embodiment, a method adjusts temperature of a label sheet comprising a laminated layer and a liner layer. The method further separates the laminated layer from the liner layer prior to making the cuts on the laminated layer. The method further cuts one or more patterns on the laminated layer. The method further re-attaches, the laminated layer to the liner layer.