Single-Color Proofing for Multi-Colour Print Deviation Detection
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Solution Overview
Problem
Current methods for pre-checking multicolored printed products require significant manual effort and time, and are not effective in identifying pressure-relevant deviations, leading to potential errors in the finished product.
Innovation Solution
A method and device that produce single-color proofs using a proofing machine, scanner, and computer to generate and evaluate digital image data, allowing for automated comparison with printing form templates to identify geometric and density deviations, reducing manual labor and time while improving quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multicolored proof is produced using all separation colors and spot colors, then the proof comprehensively represents the final printed product, but the proofing process becomes time-consuming and requires extensive manual setup
Solution Approach 1:
The patent segments the proofing process by producing individual single-color proofs for each printing forme separately, rather than producing one comprehensive multicolored proof. Each single-color proof can be quickly generated and scanned, then digitally combined to form the complete multicolored proof representation, significantly reducing manual setup time while maintaining accuracy.
Solution Approach 2:
The patent performs preliminary digital combination of the single-color proofs to create a virtual multicolored proof before physical production. This allows the complete color composition to be reviewed and verified digitally, reducing the need for extensive manual setup of physical multicolored proofs while maintaining comprehensive accuracy.
2Reliability
If manual comparison of proofs with print templates is performed, then errors can be identified, but the process requires significant manual labor and time
Solution Approach 1:
The patent replaces the manual mechanical comparison process with an automated digital image processing system. The scanner captures the single-color proofs as digital images, and computer software automatically compares these images with the digital print templates, identifying deviations without manual intervention. This maintains reliable error detection while eliminating the labor-intensive manual comparison process.
Solution Approach 2:
The patent creates digital copies of the proofs through scanning, replacing the need for physical manual handling and visual comparison. The digital images can be automatically processed and compared with digital templates, reducing manual effort while maintaining detection reliability.
3Productivity
If a single-color proof is produced for each printing forme, then the proofing process becomes faster and less manual work is required, but comprehensive color verification may be compromised
Solution Approach 1:
The patent merges the individual single-color digital proofs into a composite multicolored digital proof representation. By combining the scanned images of individual single-color proofs with their respective color separation data, the system recreates the complete multicolored proof digitally, maintaining comprehensive color verification accuracy while benefiting from the speed of single-color production.
Solution Approach 2:
The patent transitions from physical single-color proofs to digital images, adding the dimension of digital processing capability. This allows individual single-color proofs to be quickly produced physically, then digitally combined and manipulated to achieve comprehensive color verification, effectively resolving the contradiction between speed and accuracy.
4Extent of automation
If automated scanning and digital evaluation are implemented, then manual labor is reduced and consistency is improved, but device complexity increases
Solution Approach 1:
The patent employs a scanner that can capture images of the single-color proofs and a computer system that performs multiple functions including image processing, comparison with templates, deviation detection, and digital proof composition. This multi-functional approach consolidates what could be multiple separate devices into a unified system, reducing overall complexity while maintaining high automation levels.
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
The solution significantly reduces manual work and time required for pre-checking, enabling efficient identification of deviations and improving the quality of the preliminary check, allowing for quick troubleshooting and accurate prediction of print results.
Implementation Method 1
a single-color proof is scanned in order to generate digital image data of the single-color proof
Data Source
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AI summary
The method involves generating monochromic printing with a part of printing plates (4) to generate digital image data of monochromic printing, where the digital image data of monochromic printing is evaluated. Monochromic printing for the printing plates is generated under the application of single-printing color, where monochromic printing is generated by a printing machine (2) and is scanned by a scanner (8). The digital image data of the monochromic printing is evaluated by a processor (12), and the printing machine is provided with a color coating device. An independent claim is also included for a device for pre-testing multi-color printed product to be printed using multiple printing plates of different colors, comprising a scanner.