Integrated Printing Unit for Magnetic Particle Alignment and UV Curing
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Solution Overview
Problem
Existing printing technologies lack an efficient method to apply coating materials with magnetic or magnetizable particles, align them, and cure them to create optical effects dependent on viewing angle, while maintaining high resolution and simplicity.
Innovation Solution
A printing unit with a form-bound printing point, non-impact printing point, alignment cylinder, and curing device, allowing application, alignment, and curing of coating materials with magnetic particles, enabling high-resolution image incorporation and curing with a colorless additive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If coating material with magnetic particles is applied and aligned using magnetic fields to create optical effects, then optical effects dependent on viewing angle can be created, but the process becomes complex and time-consuming with multiple printing units and alignment devices required
Solution Approach 1:
The patent combines the form-bound printing point and non-impact printing point into a single integrated printing unit, allowing both printing methods to be performed in one machine. This merging eliminates the need for separate printing units and reduces overall device complexity while maintaining the ability to create aligned magnetic particle patterns with optical effects.
Solution Approach 2:
The printing unit is segmented into distinct functional zones: a form-bound printing point for applying coating material, a non-impact printing point for precise positioning, and an alignment device with magnetic field generators positioned between them. This segmentation allows each component to perform its specific function efficiently within a compact integrated structure.
2Measurement precision
If multiple printing units with alignment devices are used to apply and align coating material, then high-resolution image information can be incorporated, but the integration becomes complicated and installation flexibility is reduced
Solution Approach 1:
The patent integrates multiple printing functions (form-bound printing and non-impact printing) into a single printing unit, simplifying the overall machine structure and making installation more flexible. The integrated design maintains high-resolution image capability through the coordinated operation of both printing points within the same unit.
3Manufacturing precision
If alignment devices with magnetic field elements are positioned after form-bound printing points, then magnetic particles can be aligned to create optical effects, but the device structure becomes more complex
Solution Approach 1:
The printing unit is divided into functional segments with the alignment device positioned between the form-bound printing point and non-impact printing point. This segmentation allows magnetic particles to be aligned immediately after application, creating optical effects while maintaining a compact integrated structure rather than requiring separate distant units.
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 high-resolution, simple integration of image information into coating materials, creating optical effects without influencing color properties, and allowing for flexible installation and multiple image areas with varied pigment orientations.
Implementation Method 1
apply coating materials containing magnetic or magnetizable particles to a substrate and then align the particles using an alignment device, for example, one that uses magnetic fields
Implementation Method 2
curing the coating material
Data Source
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AI summary
The invention relates to a printing unit (700) which has at least a first impact printing position (758) which is formed by a pair of interacting rotational solids (708; 752), the printing unit (700) comprising, downstream of the first impact printing position (758) along a transport path provided for the transport of substrate (02), at least a first alignment cylinder (709) and at least a first non-impact printing position (787) to which at least a first printhead (791) is assigned, and the printing unit (700) comprising, downstream of the first non-impact printing position (787) along the transport path provided for the transport of substrate (02), at least a first curing device (772) having a first curing zone (788) assigned thereto, and, in the area of the first non-impact printing position (787), the transport path provided for the transport of substrate (02) is defined by the first alignment cylinder (709) or a rotational transport solid (711; 712; 713) which is directly upstream of the first alignment cylinder (709).