Core-Shell Toner Resin Particle with Recycled Biomass
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Solution Overview
Problem
Current toner materials rely heavily on fossil resources, contributing to global warming, and there is a need for environmentally friendly alternatives that enhance carbon neutrality and resource conservation.
Innovation Solution
Development of a resin particle with a core-shell structure containing a biomass-derived resin and a recycle-based resin, where the proportion of recycle-based resin exceeds that of biomass-derived resin, along with a sulfonic acid salt group, to create a toner with improved adhesiveness, shelf life, and electrostatic properties while promoting environmental stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fossil resources are used for toner binding resins, then toner functionality is maintained, but carbon dioxide emission increases contributing to global warming
Solution Approach 1:
The patent changes the material composition parameter by replacing fossil-based binding resins with biomass-derived resins (such as polyolefin resins from vegetable oils or polyester resins from plant-based monomers). This substitution maintains the toner's binding functionality while reducing carbon dioxide emission, as biomass resources are considered carbon-neutral when properly managed.
Solution Approach 2:
The patent employs composite material strategies by combining biomass-derived resins with other compatible materials to create a functional toner binding system. The composite approach ensures that the environmental benefits of biomass materials are achieved while maintaining all necessary toner performance characteristics through careful material selection and composition design.
2Object-affected harmful factors
If biomass-derived resin is used to enhance environmental compatibility, then carbon neutrality is improved, but adhesiveness and storage stability may deteriorate
Solution Approach 1:
The patent adjusts key parameters of the biomass-derived resin, including molecular weight, glass transition temperature, and chemical structure, to optimize both environmental compatibility and performance characteristics. By carefully controlling these parameters, the resin achieves carbon neutrality while maintaining adequate adhesiveness and storage stability.
Solution Approach 2:
The patent creates composite binding resin systems that combine multiple biomass-derived materials with complementary properties. This composite approach allows the system to achieve environmental goals while the combined materials provide sufficient adhesiveness and storage stability through synergistic effects.
3Loss of substance
If recycle-based resin is increased to exceed biomass-derived resin proportion, then resource conservation is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent optimizes the proportion parameter of recycle-based resin within a specific range that balances resource conservation goals with manufacturing feasibility. By defining appropriate concentration ranges and processing conditions, the patent achieves high recycling content while controlling manufacturing complexity to practical levels.
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 results in a toner that balances fixability, storage stability, and durability while enhancing environmental compatibility, effectively addressing the carbon neutrality and resource conservation challenges.
Implementation Method 1
adding water to the solution to induce a phase inversion of a water-in-oil liquid dispersion to an oil-in-water liquid dispersion
Implementation Method 2
a shell layer that contains a resin having a sulfonic acid salt group
Data Source
AI summary
A resin particle contains a binder resin containing a biomass-derived resin and a recycle-based resin, the resin particle including a core-shell structure including a core layer and a shell layer that contains a resin having a sulfonic acid salt group, wherein, in the binder resin, a proportion (percent by mass) of the biomass-derived resin and a proportion (percent by mass) of the recycle-based resin satisfy the following relationship 1:proportion of recycle-based resin>proportion of biomass-derived resin Relationship 1.