Rigid Thermoset Panel Sublimation for Durable 3D Imagery
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Solution Overview
Problem
Conventional printing and dye sublimation methods face limitations such as requiring specialized equipment, high temperatures that can deform materials, and being limited to two-dimensional surfaces, especially when applying images to rigid components like bath or shower enclosures.
Innovation Solution
A method involving a compression molded component with a polymer-based substrate and sublimation ink, where the ink is absorbed into the substrate by pressing a carrier with the image against the component at pressures above 100 psi and heating the ink to between 300 and 360 degrees Fahrenheit, allowing for the formation of durable, three-dimensional imagery without additional coatings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional dye sublimation is used to form images on rigid components, then images can be transferred to the surface, but the process requires heating to high temperatures (400°F) that cause deformation of the material
Solution Approach 1:
The patent changes the temperature parameter from conventional 400°F down to 225-275°F range, and modifies the chemical composition of the substrate by incorporating specific polymers (polyester, polyacrylic, polyvinylidene fluoride) that enable sublimation ink absorption at lower temperatures without material deformation
Solution Approach 2:
The rigid component uses a composite material structure with a substrate containing specific polymers (polyester, polyacrylic, polyvinylidene fluoride) combined with fillers and binders, creating a material that can absorb sublimation ink at reduced temperatures while maintaining structural integrity
2Manufacturing precision
If conventional dye sublimation is used on rigid components, then images can be formed, but additional polymeric gel coat or powder coat applications are required before image transfer
Solution Approach 1:
The patent combines the substrate preparation and image absorption functions into a single integrated substrate structure. The substrate itself contains the necessary polymeric components (polyester, polyacrylic, polyvinylidene fluoride) that provide both structural support and ink absorption capability, eliminating the need for separate gel coat or powder coat layers
Solution Approach 2:
The substrate serves multiple functions simultaneously: it provides the rigid structural base, contains the chemical components for sublimation ink absorption, and acts as the final image-bearing surface. This multi-functional design eliminates the need for additional specialized coating layers
3Ease of operation
If conventional printing methods are used to form images on articles, then flexibility and quick changeover are achieved, but the ink is deposited only on the surface resulting in limited durability
Solution Approach 1:
The substrate is pre-formulated during manufacturing with specific polymeric components (polyester, polyacrylic, polyvinylidene fluoride) that create an inherent affinity for sublimation ink. This preliminary chemical preparation ensures that when the sublimation process occurs, the ink is deeply absorbed and permanently integrated into the substrate structure, guaranteeing durability from the outset
4Manufacturing precision
If conventional dye sublimation equipment is used, then images can be transferred, but specialized equipment operating at 60 psi or less is required
Solution Approach 1:
The patent changes the pressure parameter from conventional 60 psi or less up to 100 psi or more, and modifies the temperature parameter from 400°F down to 225-275°F. These parameter changes enable the use of standard compression molding equipment already present in rigid component manufacturing facilities, eliminating the need for specialized low-pressure dye sublimation presses
5Manufacturing precision
If conventional dye sublimation is used, then images can be formed on fabrics and small items, but the process is limited to two-dimensional surfaces
Solution Approach 1:
The patent extends image formation from conventional two-dimensional surfaces to three-dimensional rigid components. By incorporating the sublimation-compatible polymers directly into the bulk substrate material and using compression molding, the image can be integrated throughout the thickness of the component, enabling durable imaging on complex 3D shapes including bath enclosures, shower walls, and other rigid structures
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
This approach enables the creation of durable, three-dimensional imagery on rigid components like bath or shower panels without deforming the material and eliminates the need for additional coatings, offering quicker changeovers and reduced equipment costs by integrating image formation with component production.
Implementation Method 1
dye sublimation, which involves heating a specialized ink or dye that converts directly from a solid to a gas
Implementation Method 2
the gaseous ink may be absorbed into the surface of the item
Data Source
AI summary
A panel includes a thermoset material, and an image comprising sublimation ink. The sublimation ink is absorbed in the thermoset material. The rigid component may be a rigid structure formed by the thermoset material. The panel may be for a bath or shower enclosure.