Specialized Inksets for UV-Resistant and Functional Printing
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Solution Overview
Problem
Traditional cyan-magenta-yellow (CMY) or cyan-magenta-yellow-black (CMYK) inksets used in printers are susceptible to ultraviolet light, leading to color fade and durability issues, particularly in outdoor applications, and struggle to produce intense colors like bright oranges and jewel tones, while lacking functional attributes such as UV protection, scratch resistance, and detectable materials.
Innovation Solution
A compact and affordable printer system utilizing specialized inksets and alternative fluids that replace traditional CMY or CMYK inks with a combination of process inks like red, yellow, and black, along with functional fluids like conductive, thermochromic, or UV-protective inks, to create more lightfast and durable prints with enhanced attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional CMY or CMYK inksets are used, then a full palette of colors can be produced through dither patterns, but the printed materials are susceptible to UV light causing color fade and durability issues
Solution Approach 1:
The patent changes the chemical parameters of the ink composition by replacing traditional cyan-magenta-yellow process colors with alternative pigments including red, green, blue, orange, violet, and black inks. This parameter change in ink chemistry provides both improved UV resistance and access to intense colors that were previously difficult to achieve with standard CMYK systems.
Solution Approach 2:
The invention uses composite ink formulations that combine multiple pigment types and chemical components within each ink cartridge. These composite materials include specialized pigments with inherent UV stability, clear coats with UV inhibitors, and functional additives that provide both durability and color intensity simultaneously.
2Reliability
If pigment inks are used instead of dye inks, then durability and lightfastness improve, but initial color intensity is reduced
Solution Approach 1:
The patent changes the pigment composition parameters by selecting specific pigment types and concentrations that optimize both color intensity and durability. The alternative inkset uses specially formulated pigments that maintain high chroma and saturation while providing superior UV resistance compared to traditional pigment inks.
Solution Approach 2:
The clear coat functional fluid serves multiple functions simultaneously: it provides gloss finish, UV protection, and scratch resistance. This multi-functional approach allows the system to achieve high durability without compromising color intensity, as the clear coat protects the underlying intense pigmented inks.
3Illumination intensity
If six to eight inks are used to achieve highly intense colors, then color intensity improves, but device size and cost increase significantly
Solution Approach 1:
The patent changes the inkset composition parameters by using a streamlined alternative inkset that achieves intense colors with fewer ink cartridges. The alternative process colors are formulated to provide high saturation and vibrancy individually, eliminating the need for complex multi-ink combinations required by traditional systems to achieve similar color intensity.
Solution Approach 2:
The invention merges multiple functions into the clear coat functional fluid, which provides gloss, UV protection, and scratch resistance in a single layer. This consolidation reduces the number of additional cartridges needed compared to traditional systems that would require separate protective coatings, thereby reducing device complexity while maintaining color intensity.
4Device complexity
If traditional CMY or CMYK inksets are used, then printing process is simple, but functional attributes such as UV protection, conductivity, and scratch resistance are not provided
Solution Approach 1:
The clear coat functional fluid provides multiple functional attributes simultaneously including UV protection, scratch resistance, and gloss finish. This multi-functional approach allows the printer to deliver enhanced capabilities without significantly increasing process complexity, as the clear coat is applied as a standard part of the printing workflow.
Solution Approach 2:
The patent changes the functional parameters of the ink system by incorporating specialized functional fluids with unique chemical properties. These include UV-resistant compounds, conductive materials, and scratch-resistant polymers that can be jetted alongside traditional process colors, expanding functionality while maintaining a relatively simple printing process through existing inkjet technology.
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 produces prints that are more resistant to UV light and fade, achieving higher color intensity and durability, and includes functional features like UV protection and scratch resistance, enabling the creation of intense colors previously unattainable with standard inksets.
Implementation Method 1
thermochromic materials
Implementation Method 2
conductive materials
Implementation Method 3
supplemental UV protection
Data Source
AI summary
Printer systems and associated ink cartridges can have specialized inksets and alternative fluids for use in printing. In such systems and cartridges, the inkset of a unique cartridge may be deliberately limited relative to traditional inksets that seek to have a wide color gamut such that chemistries having greater durability may be employed. Still further, such cartridges may include one or more functional inks that have a purpose other than merely coloration. Particularly in compact printers, for which space is limited, the system can be designed to accept various unique cartridges based on the intended printing application and print based on the characteristics of the received cartridge. Beyond this, the system may advise the user when a different cartridge is necessary and/or may be beneficially used for a particular application.