Web Material Cutting and Application for Elastic Substrate Placement
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Solution Overview
Problem
Existing systems struggle to cut sections of web material at desired locations on a substrate while maintaining control at high speeds, often requiring system adjustments to change section sizes or positions, and face difficulties in handling elastic materials without deformation.
Innovation Solution
A system with independent drive elements for the feed and anvil rolls, controlled by a system controller, allows for cutting web material into defined sections and applying them to a substrate while minimizing elastic deformation, using vacuum systems to maintain material control and adjust section lengths and positions without mechanical reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional printing methods are used on plastic films, then production speed can be maintained, but image quality deteriorates due to substrate movement and printing defects
Solution Approach 1:
The patent applies preliminary action by pre-coating the plastic film substrate with a receiving layer before printing. This receiving layer is prepared in advance to provide optimal printing properties, ensuring that when printing occurs at high speed, the substrate is already primed to accept ink uniformly without movement-related defects. The pre-treatment of the substrate surface resolves the contradiction by preparing the substrate beforehand to maintain both high production speed and image quality.
2Productivity
If high-speed printing is employed, then productivity increases, but image quality deteriorates due to substrate movement and printing defects
Solution Approach 1:
The patent employs parameter changes by modifying the surface properties of the plastic film substrate through the application of a receiving layer with specific chemical and physical characteristics. This layer changes the surface energy, porosity, and adhesion properties of the substrate, enabling high-speed printing to proceed without the usual image quality deterioration. The parameter changes in the substrate surface allow productivity increase while maintaining manufacturing precision.
3Manufacturing precision
If multiple printing passes are used to achieve full-color printing, then image quality improves, but production time increases
Solution Approach 1:
The patent applies universality by developing a receiving layer that provides multi-functional properties: it enables uniform ink absorption, prevents substrate movement, and allows for accurate color reproduction. This single multi-functional layer replaces the need for multiple separate treatment steps or passes, achieving full-color printing accuracy while reducing production time. The receiving layer serves multiple purposes simultaneously, resolving the contradiction between color accuracy and production time.
4Reliability
If conventional primers are applied to plastic films, then ink adhesion improves, but environmental harm increases due to VOC emissions and health risks
Solution Approach 1:
The patent applies parameter changes by transitioning from conventional organic-based primers to a water-based receiving layer composition. This fundamental change in the chemical parameters of the primer system maintains ink adhesion reliability while eliminating volatile organic compound emissions. The water-based formulation changes the physical and chemical parameters of the primer, allowing it to function effectively without the harmful VOC emissions associated with traditional solvents.
Solution Approach 2:
The patent employs this principle by using a receiving layer formulation that is environmentally benign and can be applied in a single pass without requiring complex environmental controls or extensive drying times. The water-based system is designed to be inherently safer and more sustainable, replacing expensive environmental compliance infrastructure with a simpler, cleaner chemical system that achieves the same adhesion reliability.
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
A system (10) for cutting a web material (11) and applying the web material (11) on a substrate (13) comprises a feed roll (16; 35) configured to advance the web material (11). The system (10) includes an anvil roll (18) configured to receive the web material (11) from the feed roll (16; 35) and provide a section (12) of web material (11) having a defined length. The system (10) includes a cutting element (20) configured to cut the web material (11) to form the section (12) of web material (11). The anvil roll (18) is configured such that the anvil roll (18) surface advances at an anvil roll surface speed. The feed roll (16; 35) is configured to rotate at a first feed roll surface speed that is slower than the anvil roll surface speed and a second feed roll surface speed that is substantially the same as the anvil roll surface speed when the cutting element (20) cuts the web material (11).