3D Printing Multi-Fluid Kit for Uniform Parts and Color Control
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Solution Overview
Problem
Current 3D printing technologies face challenges in achieving uniform mechanical properties and coloration in 3D printed parts, with existing fusing agents often resulting in strongly colored parts or limited color options, and lacking efficient methods for part tracking and security marking.
Innovation Solution
A multi-fluid kit comprising a fluorescent marking agent, a first fusing agent with metal oxide nanoparticles for plasmonic resonance absorption, and a second fusing agent for near-infrared absorption, along with a detailing agent, is used in a 3D printing method that involves depositing layers of polymeric powder build material and selectively applying these agents before exposure to electromagnetic radiation to achieve parts with mechanical integrity and customizable color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional fusing agents are used in 3D printing, then the parts can be formed, but the parts become strongly colored and mechanical properties are non-uniform
Solution Approach 1:
The patent divides the fusing function into two separate agents: a first fusing agent that provides uniform heating and mechanical integrity, and a second fusing agent that provides coloration. This segmentation allows each agent to be optimized for its specific function without compromising the other, resolving the contradiction between mechanical uniformity and color consistency.
Solution Approach 2:
The patent introduces a marking agent as an intermediary component that can be selectively applied to provide tracking and security features without affecting the mechanical properties or base coloration of the part. This intermediary allows for additional functionality to be added without compromising the uniformity achieved by the fusing agents.
2Adaptability or versatility
If conventional fusing agents are used, then parts can be formed, but color options are limited and part tracking capability is lacking
Solution Approach 1:
The patent creates a multi-fluid kit where each fluid serves multiple potential functions: the first fusing agent provides both mechanical integrity and can be used for white parts; the second fusing agent provides coloration; the marking agent provides tracking and security features. This multi-functionality approach increases adaptability while managing complexity through standardized fluid formulations.
Solution Approach 2:
The patent enables different regions of the same part to have different properties by selectively applying different fusing agents and marking agents to different areas. This allows local customization of color, mechanical properties, and tracking features, significantly increasing color options and functional versatility.
3Strength
If single fusing agent is used, then the process is simple, but both mechanical integrity and color control cannot be optimized simultaneously
Solution Approach 1:
The patent separates the mechanical integrity function and color control function into different fusing agents. The first fusing agent is optimized for mechanical integrity with uniform heating properties, while the second fusing agent is optimized for color control. This segmentation allows both functions to be independently optimized without compromise.
Solution Approach 2:
The patent uses composite material formulations where the first and second fusing agents can be combined in specific ratios and applications to achieve both mechanical integrity and desired coloration. The marking agent can also be incorporated as a composite component. This composite approach allows simultaneous optimization of multiple properties.
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 enables the production of 3D printed parts with uniform mechanical properties and customizable colors, including white or colored options, while the fluorescent marking agent allows for part tracking and security applications.
Implementation Method 1
a first fusing agent with metal oxide nanoparticles for plasmonic resonance absorption
Implementation Method 2
a second fusing agent for near-infrared absorption
Implementation Method 3
a fluorescent marking agent... a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range
Data Source
AI summary
Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.