Web-fed Inkjet Printing for Decorative Panels
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Solution Overview
Problem
The manufacturing of decorative panels faces inefficiencies due to the need for multiple heat presses with different configurations, leading to waste and downtime from incorrect allocation and incompatibility, especially in personalized and short-run production, where existing solutions like multiple web-fed inkjet print systems are uneconomical and require significant resources.
Innovation Solution
A method where a web-fed inkjet print system prints two decorative layers simultaneously, allowing them to be processed on separate heat presses during overlapping time periods, reducing the need for multiple expensive inkjet print systems and minimizing waste by optimizing the use of existing heat press configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more than one web-fed inkjet print system is available in the manufacturing line, then the allocation of decorative layers to heat presses can be optimized and wrong allocation avoided, but the cost increases significantly due to multiple expensive machines (each with 200+ inkjet printheads)
Solution Approach 1:
A single web-fed inkjet print system is configured to perform multiple functions by printing different decorative layers in different time periods. The system prints a first decorative layer on a first substrate and a second decorative layer on a second substrate sequentially, enabling one machine to serve multiple production streams that would otherwise require separate machines.
Solution Approach 2:
The inkjet print system operates in periodic cycles, alternating between printing the first decorative layer and the second decorative layer on different substrates. This time-based segmentation allows the single system to produce multiple decorative layers intended for different heat presses, optimizing resource utilization without requiring parallel machine infrastructure.
2Adaptability or versatility
If more than one web-fed inkjet print system is available, then short-run personalized production can be handled more flexibly, but the operational cost increases due to extra operators, energy consumption, and maintenance requirements
Solution Approach 1:
The single inkjet print system is designed to handle multiple substrate types and decorative layer configurations within the same production run. By programmatically controlling the printing sequence and substrate handling, one system achieves the adaptability of multiple specialized systems while consuming fewer resources and requiring fewer operators.
Solution Approach 2:
The system maintains continuous productive operation by eliminating idle time between printing different decorative layers. The periodic action is optimized so that while one substrate is being printed, preparation for the next is underway, ensuring the single machine operates at full utilization without the downtime that would occur if multiple machines shared a common queue.
3Manufacturing precision
If decorative layers are printed sequentially on separate inkjet print systems, then each layer can be optimized for its specific heat press, but the manufacturing time increases and production flow is interrupted
Solution Approach 1:
The single inkjet print system alternates between printing different decorative layers in a periodic sequence, with each layer type optimized for its destination heat press. This time-based multiplexing allows the system to maintain production continuity while preserving the specialized optimization needed for different panel types, avoiding the delays associated with physical machine reconfiguration.
Solution Approach 2:
Instead of separating production by spatial distribution (multiple parallel machines), the system uses temporal distribution (sequential printing in different time periods) to achieve the same effect. This dimensional shift from space to time allows optimized printing of different decorative layers while maintaining a single-machine architecture, reducing both capital expenditure and operational complexity.
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 approach shortens manufacturing time, reduces waste, and is economically beneficial by allowing a single web-fed inkjet print system to handle multiple decorative layers efficiently, enhancing production flexibility and reducing operational costs.
Implementation Method 1
a jettable composition is jetted through a printhead onto the substrate to form a decorative image
Implementation Method 2
the decorative image, such as a wood pattern, is printed by a web-fed inkjet print system on a substrate to become a decorative layer which is than heat pressed together with one or more other layers to a decorative panel by using a thermosetting resin
Data Source
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AI summary
A method of manufacturing decorative panels and a system for manufacturing decorative panels including the steps of inkjet printing a first decorative layer (301) in a web-fed inkjet print system in a first time period; and inkjet printing a second decorative layer (302) in the web-fed inkjet print system in a second time period; and heat pressing the first decorative layer (301) into a decorative panel (331) on a first heat press (401); and heat pressing the second decorative layer (302) into another decorative panel (332) on a second heat press (402); and wherein the first and second time period overlap.