Printing Apparatus Intentional Color Variability
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Solution Overview
Problem
Conventional printing techniques produce rigid designs with limited variability due to their high accuracy in reproducing original patterns and images, lacking inherent flexibility and color variability.
Innovation Solution
Incorporating heterogeneous ink blends, varying contact pressures, and interchangeable base coat cylinders to introduce intentional random variations and design flexibility in printing processes like rotogravure, digital, and laser printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional printing techniques are used to reproduce patterns and images, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The patent applies dynamics by making the printing system adjustable and flexible. The printing apparatus can dynamically change parameters such as ink composition, layering sequences, and printing conditions to produce varied designs from the same base pattern, thereby achieving both precision reproduction and design adaptability
Solution Approach 2:
The invention utilizes parameter changes by modifying physical and chemical properties of the printing process. By changing ink composition (homogeneous vs. heterogeneous blends), layering parameters, and printing conditions, the system can produce consistent patterns with intentional variability, resolving the contradiction between precision and adaptability
2Manufacturing precision
If homogeneous ink is used for printing, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The patent applies local quality by using heterogeneous ink blends where different regions of the ink contain different compositions or properties. This allows specific areas of the printed design to exhibit color variability while maintaining overall pattern consistency, enabling both precision and adaptability in color reproduction
Solution Approach 2:
The invention uses composite materials by combining multiple ink components with different properties in heterogeneous blends. These composite inks provide both the consistency needed for precise pattern reproduction and the variability required for adaptive design changes
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 the creation of designs with inherent variability while maintaining desired patterns and images, enhancing the flexibility and uniqueness of printed products.
Implementation Method 1
During rotation, the drum adsorbs the ink on the periphery of the drum
Implementation Method 2
The charged toner particles are given a negative charge, and are electrostatically attracted to the photoreceptor where the laser wrote the latent image
Data Source
AI summary
An apparatus for printing a variable pattern on a substrate, a method using the apparatus, a product produced by using the apparatus are disclosed. The apparatus includes an ink bath containing a printing agent to be applied to the substrate, a roller that picks up ink from the ink bath, a doctor blade to wipe of excess printing agent on the roller, and a means for intentionally varying the design printed on the substrate from the roller.