Resealable Label Web Line With Switchable Laser and Lamination Order
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating resealable labels on flexible packaging materials lack flexibility in operation order and efficiency in laser treatment and lamination processes, particularly in adjusting tension control during web processing.
Innovation Solution
A plant and method that allows selective passage of a web through laser and labeling stations, with dual tension control using load cell-based weighings to adjust roller nips, enabling precise application of resealable labels and laser scoring on flexible materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the web is processed through both laser station and labelling station, then the resealable label functionality is achieved, but the process complexity and tension control difficulty increase
Solution Approach 1:
The system dynamically adjusts the processing path based on the web material type. The tension control system continuously monitors and adjusts roller nip tensions during processing, and the path selection mechanism allows switching between different processing sequences (laser then label, label then laser, or laser only) to optimize for each material type, resolving the contradiction between achieving full functionality and managing process complexity
Solution Approach 2:
The processing system is segmented into independent modular stations (laser station, labelling station, path selection mechanism, tension control systems) that can be selectively engaged. This segmentation allows the complex dual-treatment process to be broken down into manageable independent units, each with its own optimized parameters, reducing overall system complexity while maintaining versatility
2Ease of operation
If the operation order is fixed, then the process control is simplified, but the adaptability to different web materials is reduced
Solution Approach 1:
The system employs dynamic path selection that automatically adjusts the processing sequence based on detected web material properties. The control system monitors material characteristics and dynamically reconfigures the processing path, allowing the same equipment to handle different materials with optimal processing orders without requiring manual reconfiguration, thus maintaining ease of operation while achieving high adaptability
3Device complexity
If tension is not precisely controlled during laser treatment and lamination, then the equipment complexity is reduced, but the manufacturing precision deteriorates
Solution Approach 1:
The tension control system incorporates feedback mechanisms with load cells or tension sensors that continuously monitor the actual tension in the web during processing. This feedback is fed back to the control system, which automatically adjusts roller nip tensions to maintain optimal values, ensuring precise label application and laser scoring without requiring overly complex manual tension control mechanisms
Solution Approach 2:
The system replaces manual or simple mechanical tension control with an automated control system that uses sensors and actuators to precisely regulate roller nip tensions. This substitution of simple mechanical adjustment with automated sensing and control achieves high manufacturing precision while keeping the overall equipment design relatively simple and maintainable
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
Enables flexible operation order of laser scoring and lamination, ensuring precise label application and efficient tension control, enhancing the production of resealable labels on flexible materials.
Implementation Method 1
a laser station (B1) included in a guided passage of the above-mentioned web (11) of material, the laser station (B1) comprising at least one laser unit (20) to create weakening lines by scoring the web (11) with a certain contour in some target zones
Implementation Method 2
a path in contact with an upper loadcell based weighing (21) and in contact with a lower load cell-based weighing (22); so that a dual controlled tension is applied to the web (11)
Data Source
Figure 1~2
Figure 1A
Figure 1B
AI summary
Plant for laser scoring and laminating or vice versa a resealable label on a web material with option to dispense with lamination. The plant comprises: an unwinder station (A) from which a web (11) is fed to a support and guiding a laser station (B1) included in a guided passage of the above-mentioned web (11); a labelling station (B2) included in another guided passage of the above-mentioned web (11) , and a slitter-rewinder station (C) to rewind and or slit the web (11) after treatment in the laser station (B1) and in the labelling station (B2), wherein the web (11) of flexible material is selectively driven to pass firstly through the laser station (B1) and then through the labelling station (B2) or the other way around, or to pass only through the laser station (B1). A method that implements the facility is proposed.