Digital Customizer System Dot Gain Control
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Solution Overview
Problem
Existing digital customizer systems using desktop inkjet printers with soluble dyes are not optimized for heat activatable inks like sublimation dyes, resulting in suboptimal results due to inadequate control over dot gain and resolution when printing on substrates other than paper.
Innovation Solution
A digital customizer system employing a full-color inkjet printer with heat activatable colorants, controlled by a computer and color management software, which uses heat and pressure to transfer images from a medium to a substrate, managing both first and second level dot gain through a calibrated algorithm to achieve high-quality, photographic-level imaging on various substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If desktop inkjet printers use soluble dyes for printing, then printing on paper is simple and straightforward, but the results are suboptimal when used with heat activatable inks on substrates other than paper
Solution Approach 1:
The patent applies parameter changes by adjusting dot gain compensation values based on the specific substrate material being printed on. The system stores multiple dot gain compensation profiles in a lookup table, each optimized for different substrate types (paper, plastic, metal, ceramic, etc.). When a user selects a substrate type, the corresponding compensation parameters are automatically applied to achieve optimal image quality for that specific material.
Solution Approach 2:
The patent replaces the trial-and-error mechanical adjustment process with an automated digital system. Instead of manually adjusting printing parameters for different substrates, the system uses a computer-controlled interface with a lookup table that automatically selects and applies the appropriate dot gain compensation parameters based on the selected substrate type, thereby substituting manual mechanical optimization with automated digital control.
2Adaptability or versatility
If heat activatable inks are used for mass customization, then diverse substrate customization is enabled, but inadequate control over dot gain and resolution occurs
Solution Approach 1:
The patent implements parameter changes by maintaining a lookup table with substrate-specific dot gain compensation values. For each substrate type (plastic, metal, ceramic, glass, textile), pre-determined compensation parameters are stored and automatically applied during printing. This allows the system to adapt printing parameters dynamically based on the target substrate, ensuring optimal dot gain control and resolution for each material type.
Solution Approach 2:
The system incorporates feedback mechanisms through color management software that monitors and adjusts printing parameters. The lookup table acts as a feedback repository, storing empirically determined compensation values that are applied based on substrate type selection. This feedback loop ensures that the correct parameters are consistently applied for each substrate material, maintaining precision across diverse customization applications.
3Productivity
If conventional dot gain control methods are used, then printing speed is maintained, but photographic quality imaging is not achieved on most substrates
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing dot gain compensation parameters in a lookup table before actual printing occurs. During the printing process, the system simply retrieves the appropriate pre-computed parameters based on the selected substrate type, rather than performing complex real-time calculations. This preliminary preparation maintains high printing speed while ensuring photographic quality results through optimized parameter selection.
Solution Approach 2:
The system achieves both speed and quality by implementing parameter changes through the lookup table mechanism. Pre-determined compensation parameters are stored for various substrate types and printing conditions. The system rapidly switches between these parameter sets based on the specific printing job requirements, enabling fast parameter adjustment without sacrificing image quality. This parameter-based approach allows conventional printing speeds to be maintained while achieving photographic quality output.
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 system enables high-quality, photographic-level imaging on diverse substrates by precisely controlling dot gain and ink droplet formation, overcoming limitations of conventional printers with water-soluble dyes and achieving optimal results with heat activatable inks.
Implementation Method 1
The ink comprises heat activatable colorant solids that are printed onto media in the form of an image that may be activated and/or transferred to a subsequent or final substrate by applying heat and pressure
Data Source
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AI summary
The present invention is a system and method for digitally customizing or decorating objects typically formed of substrates other than paper. The system includes a computer, color management software, and a full color inkjet printer designed for printing heat activatable ink. The ink comprises heat activatable colorant solids that are printed onto media in the form of an image (3) that may be activated and/or transferred to a subsequent or final substrate by applying heat and intimate contact between the medium (9) and the subsequent or final substrate (8). Control of first level dot gain upon printing and second level dot gain upon heat activation of the colorant provides an image that is of high quality, and even photographic quality, for most substrates that are usable with the system and method of the invention.