Decorative Tire Ink Composition for Crack Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Decorative tires face limitations in design flexibility and durability due to the need for high conformability and resistance to peeling caused by tire deformation and environmental factors, which existing methods struggle to address effectively.
Innovation Solution
A decorative tire with a decorative print layer formed using an active-energy-ray-curable ink composition containing specific monomers and a polymerization initiator, applied via an inkjet method, and optionally featuring a primer and surface protective layers to enhance adhesion and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a tire label is attached to the tire surface to enhance designability, then the aesthetic appearance is improved, but the label undergoes great deformation and may cause cracks or peeling during tire running
Solution Approach 1:
The patent changes the chemical composition parameters of the ink composition by incorporating specific polymerizable monomers (acrylate, methacrylate, vinyl compounds) and polymerization initiators. This allows the ink film to undergo chemical transformation from a rigid state to a flexible, elastic state that can deform with the tire without cracking or peeling, while maintaining aesthetic appearance
Solution Approach 2:
The patent creates a composite decorative layer by combining multiple components: polymerizable monomers, polymerization initiators, coloring materials, and functional additives. This composite ink composition forms a flexible film that integrates with the tire surface, providing both aesthetic design and durability against deformation, cracking, and peeling
2Adaptability or versatility
If an ink composition is applied directly onto the tire surface to increase design freedom, then the degree of freedom of design is improved, but the cured film may lack conformability to tire deformation
Solution Approach 1:
The patent modifies the physical and chemical parameters of the ink composition by selecting specific polymerizable monomers with appropriate molecular weights and flexibility characteristics. The inclusion of vinyl compounds and the adjustment of monomer ratios enable the cured film to maintain flexibility and conformability to tire deformation while allowing direct application for enhanced design freedom
Solution Approach 2:
The patent creates a flexible thin film structure by using polymerizable monomers that form elastic polymer networks upon curing. This flexible film can stretch and deform with the tire surface, maintaining conformability while enabling direct decorative application with high design freedom
3Adaptability or versatility
If a decorative print layer is formed by curing ink composition on the tire surface, then design flexibility is improved, but the film may peel due to temperature change and rainfall
Solution Approach 1:
The patent develops a composite ink composition incorporating polymerizable monomers, polymerization initiators, coloring materials, and functional additives such as adhesion promoters and UV stabilizers. This composite structure creates a decorative film that adheres strongly to the tire surface and resists peeling from temperature changes and rainfall while maintaining design flexibility
Solution Approach 2:
The patent adjusts the chemical composition parameters of the ink, including the types and ratios of polymerizable monomers and functional additives, to optimize both adhesion to the tire surface and resistance to environmental factors. This ensures the decorative film remains firmly attached under varying temperature and moisture conditions
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 provides a decorative tire with increased design freedom and resistance to cracking and peeling, even under repeated expansion and contraction, while maintaining aesthetic appeal and durability.
Implementation Method 1
the active-energy-ray-curable ink composition contains active-energy-ray-polymerizable monomers and an active-energy-ray polymerization initiator
Data Source
AI summary
Provided is a decorative tire in which an ink composition including a colorant is directly applied onto the tire surface in order to improve the degree of flexibility in design. This decorative tire has a decorative printed layer formed on the tire surface, the decorative printed layer being a cured film of an active-energy-ray-curable ink composition including a colorant. The ink composition includes a monofunctional monomer having a glass transition point of -30°C or lower, and a polyfunctional monomer having a glass transition point of 0°C or lower. Preferably, the ink composition further includes a monofunctional monomer having an alicyclic structure with a glass transition point between 0-110°C inclusive. Preferably, a surface protection layer that protects the surface of the decorative printed layer is formed on the surface of the decorative printed layer. Also, preferably, a primer layer is formed between the tire surface and the decorative printed layer.