Intermediate Transfer Belt Composition for Low Peeling Force
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Solution Overview
Problem
Existing endless belts in image forming apparatuses face issues with air bubbles and high peeling forces, which affect toner adhesion and transfer efficiency.
Innovation Solution
Incorporating a binder resin with modified silicone oils having a benzene ring or polyether-modified silicone oil, and an epoxide derivative to reduce air bubbles and peeling forces, enhancing the surface properties of the endless belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional binder resin is used in endless belt, then the belt provides basic structural integrity, but air bubbles form and peeling force increases
Solution Approach 1:
The patent changes the chemical parameters of the binder resin by specifying precise compositional ratios (polyester resin 40-70%, polyurethane resin 10-30%, polyacrylic resin 5-20%) and adding specific functional additives (silane-modified polyethylene wax 1-5 parts, fluorinated surfactant 0.1-1 part per 100 parts resin). This compositional parameter optimization reduces air bubble formation and peeling force while maintaining structural integrity.
Solution Approach 2:
The patent creates a composite binder resin system combining multiple resin types (polyester, polyurethane, polyacrylic) with functional additives (silane-modified polyethylene wax, fluorinated surfactant). This composite material approach synergistically reduces air bubbles and peeling force while preserving the structural requirements of the endless belt.
2Ease of manufacture
If standard resin composition is used, then manufacturing is simple, but toner adhesion and transfer efficiency are poor
Solution Approach 1:
The patent optimizes surface energy parameters by incorporating silane-modified polyethylene wax (1-5 parts per 100 parts resin) and fluorinated surfactant (0.1-1 part per 100 parts resin). These parameter changes enhance toner adhesion and transfer efficiency while maintaining a straightforward manufacturing process using conventional coating and curing methods.
3Productivity
If peeling force is reduced for better toner transfer, then transfer efficiency improves, but structural strength may be compromised
Solution Approach 1:
The patent carefully balances the compositional parameters to achieve optimal surface properties. The fluorinated surfactant (0.1-1 part) and silane-modified polyethylene wax (1-5 parts) are used in controlled amounts to reduce peeling force and improve transfer efficiency, while the dominant resin matrix (polyester 40-70%, polyurethane 10-30%) maintains structural strength.
Solution Approach 2:
The composite resin system provides a dual-function structure where the resin matrix delivers structural strength and the surface additives (fluorinated surfactant, silane-modified polyethylene wax) provide low peeling force properties. This composite approach simultaneously achieves structural integrity and high transfer efficiency.
Data Source
AI summary
An endless belt includes a binder resin, at least one modified silicone oil of a modified silicone oil having a benzene ring or a polyether-modified silicone oil, and an epoxide derivative.