Inkjet Recorded Matter Static Suppression Low Humidity
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Solution Overview
Problem
Inkjet recorded matter experiences conveyance troubles due to static electricity generation in low-humidity environments, and struggles with abrasion resistance in varying environmental conditions.
Innovation Solution
A recorded matter comprising a recording medium with a recorded layer containing an organic solvent mixture of hexanediol and propylene glycol, and a resin blend of acrylic and urethane resins, where the urethane resin to acrylic resin mass ratio ranges from 0.1 to 0.7, is conveyed at a relative humidity of 40% or less, enhancing moisture retention and elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If recorded matter is conveyed in low-humidity environments, then productivity is maintained, but static electricity generation causes conveyance troubles
Solution Approach 1:
The patent converts the harmful static electricity effect into a beneficial one by controlling the friction between recorded matter and conveyor rollers. By optimizing surface properties and material selection, the friction that previously generated harmful static electricity is transformed to produce controlled electrostatic adhesion, enabling reliable conveyance in low-humidity environments without traditional anti-static measures
Solution Approach 2:
The patent changes physical parameters of the recorded matter surface, including surface energy, friction coefficient, and electrostatic properties. By adjusting these parameters through specific coating materials and surface treatments, the recorded matter achieves optimal electrostatic characteristics for low-humidity conveyance, preventing both excessive static generation and insufficient adhesion
2Strength
If resin composition is optimized for abrasion resistance, then durability is improved, but adaptability to various environmental conditions deteriorates
Solution Approach 1:
The patent employs composite resin formulations combining multiple polymer types (acrylic resins, vinyl chloride resins, and other vinyl resins) with complementary properties. This composite approach achieves synergistic effects where the combination provides superior abrasion resistance while maintaining flexibility and environmental adaptability that single-resin systems cannot achieve
Solution Approach 2:
The patent applies different resin components with specific local functions within the coating layer. Certain resin types concentrate in specific regions or provide specific properties (e.g., hardness in wear zones, flexibility in bulk), allowing the recorded matter to exhibit tailored properties for different environmental conditions while maintaining overall durability
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 solution effectively suppresses static electricity-induced conveyance troubles and maintains high abrasion resistance in both low-humidity and high-temperature, high-humidity environments, ensuring reliable handling and durability of the recorded matter.
Implementation Method 1
enhancing moisture retention and elasticity
Implementation Method 2
enhancing moisture retention and elasticity
Implementation Method 3
maintains high abrasion resistance in both low-humidity and high-temperature, high-humidity environments
Data Source
AI summary
A method of using recorded matter is provided. The method includes conveying a recorded matter at a relative humidity of 40% or less, where the recorded matter includes a recording medium and a recorded layer on the recording medium. The recorded layer includes an organic solvent, a colorant, and a resin. The organic solvent includes a hexanediol and a propylene glycol. The resin includes an acrylic resin and a urethane resin, where a mass ratio of the urethane resin to the acrylic resin ranges from 0.1 to 0.7.