Intermittent Adhesive Label Strips for Clean Cutting
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Solution Overview
Problem
Existing self-adhesive labels with adhesive application methods contaminate and damage production tools and machines, and cause unwanted adhesive spread during use, leading to handling difficulties and user inconvenience.
Innovation Solution
A method involving a base material web with intermittently applied adhesive regions and a cover material that covers these regions, separated exclusively along adhesive-free areas to prevent contamination and damage, ensuring efficient handling and application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is applied to the entire label surface, then the label achieves sufficient adhesion strength, but the adhesive contaminates and damages production tools and machines during cutting and processing
Solution Approach 1:
The label is divided into adhesive regions and adhesive-free regions, with adhesive applied only to specific segments (adhesive regions) rather than the entire surface. This segmentation allows the label to maintain sufficient adhesion strength through concentrated adhesive application while preventing contamination of production tools during cutting and processing, as the adhesive-free regions provide clean cutting edges.
Solution Approach 2:
Different regions of the label are assigned different properties: adhesive regions contain the adhesive for bonding functionality, while adhesive-free regions are kept free of adhesive to enable clean cutting and processing. This local differentiation of quality allows the label to achieve both strong adhesion where needed and contamination-free processing where required.
2Quantity of substance
If adhesive is applied close to the label edges, then the label achieves maximum adhesive coverage, but the adhesive extends beyond the edge and contaminates the user's hands and the object
Solution Approach 1:
The label perimeter is segmented into adhesive-free regions that form a clean border around the adhesive regions. This segmentation ensures that adhesive is contained within specific regions and does not extend to the edges, preventing contamination of the user's hands and the object while still providing sufficient adhesive coverage for effective bonding.
Solution Approach 2:
The edges of the label are given a different property from the adhesive regions: the adhesive-free regions at the edges provide a clean, non-sticky boundary that prevents adhesive migration onto the user's hands or the object surface, while the adhesive regions maintain adequate coverage for bonding functionality.
3Strength
If adhesive is applied to the entire label surface, then the label achieves sufficient adhesion strength, but the adhesive collects at the edges and affects other objects
Solution Approach 1:
The label is segmented into adhesive regions surrounded by adhesive-free regions. This segmentation creates a barrier that prevents adhesive from migrating to the edges and affecting other objects, while the adhesive regions maintain sufficient coverage and strength for effective bonding.
Solution Approach 2:
Different regions of the label have different adhesive properties: adhesive regions provide bonding strength, while adhesive-free regions at the periphery prevent adhesive migration and its harmful effects on other objects. This local quality differentiation resolves the contradiction between achieving sufficient adhesion strength and preventing adhesive migration.
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
Reduces contamination and damage to production tools, minimizes adhesive spread, and enhances user-friendliness by facilitating handling and application of self-adhesive labels.
Implementation Method 1
a base material web with intermittently applied adhesive regions and a cover material that covers these regions
Data Source
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AI summary
The invention relates to a method for producing labels (100; 200A, 200B), comprising the steps of: a) providing a base material web (10); b) applying at least one adhesive to the base material web (10) along at least one row (14a, 14b) by means of at least one application device, wherein the adhesive is applied intermittently along the row (14a, 14b) to the base material web (10), such that the row (14a, 14b) has a plurality of individual adhesive areas (12), each spaced apart from the other by adhesive-free areas (16); c) providing a cover material (20); d) applying the cover material (20) at least partially to the base material web (10), such that a plurality of the applied adhesive areas (12) are completely covered by the cover material (20);and e) at least partial separation of the base material web (10) and/or the top layer material (20) exclusively along adhesive-free areas (16, 18) by means of at least one separation device. The invention also relates to a label (100; 200A, 200B) with a base material (110) having at least one adhesive area (112) and a top layer material (120; 20A, 20B, 20C, 20D) and a label tape (60; 160).