Inkjet Printing Sheet With Silicone Leveling Agent
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Solution Overview
Problem
Inkjet printing technologies face issues with uneven printing due to variations in dot interference on the ink-receiving layer surface, leading to faint and inconsistent print quality.
Innovation Solution
Incorporating a small amount of silicone-based leveling agent into the ink-receiving layer composition, specifically between 0.005 and 0.30 parts by mass per 100 parts of resin, to regulate surface free energy and dot interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional ink-receiving layer composition is used, then the printing process is simple, but uneven printing occurs due to variation in dot interference
Solution Approach 1:
The patent applies parameter changes by introducing a silicone-based leveling agent at a specific concentration range (0.005-0.30 parts by mass per 100 parts by mass of resin) to modify the surface free energy of the ink-receiving layer. This parameter adjustment homogenizes the surface properties, ensuring uniform dot interference and eliminating uneven printing while maintaining a relatively simple composition framework
Solution Approach 2:
The silicone-based leveling agent acts as an intermediary substance that mediates between the ink droplets and the ink-receiving layer surface. It modifies the surface free energy to achieve homogeneous wetting and uniform dot interference, resolving the contradiction between printing uniformity and composition simplicity
2Manufacturing precision
If the ink-receiving layer surface has high wettability variation, then dot interference varies across the surface, but adding leveling agents increases composition complexity
Solution Approach 1:
The patent precisely controls the concentration parameter of the silicone-based leveling agent within a narrow range (0.005-0.30 parts by mass per 100 parts by mass of resin). This parameter optimization achieves homogeneous dot interference uniformity while minimizing composition complexity, as the effective concentration range is relatively small and well-defined
Solution Approach 2:
The patent uses a small but sufficient amount of silicone-based leveling agent (0.005-0.30 parts by mass per 100 parts by mass of resin) to achieve the desired effect. This partial action approach provides enough leveling agent to homogenize surface free energy and ensure uniform dot interference, without adding excessive complexity to the composition
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 effectively suppresses uneven printing by homogenizing surface free energy, reducing dot interference, and enhancing print quality by maintaining consistent ink adhesion and preventing ink repelling.
Implementation Method 1
blending an extremely small amount of silicone-based leveling agent in a composition for forming ink-receiving layer... suppressing variation in the interference among dots in the surface of an ink-receiving layer
Implementation Method 2
the release liner including a silicone-based release agent layer on a contact face with the pressure sensitive adhesive layer
Data Source
AI summary
An object is to provide an inkjet printing sheet that can suppress uneven printing by suppressing variation in the interference among dots in an ink-receiving layer surface. This object was achieved by a sheet for inkjet printing, the sheet having a multilayer structure including in this order an ink-receiving layer, a base material, a pressure sensitive adhesive layer, and a release liner, the release liner including a silicone-based release agent layer on a contact face with the pressure sensitive adhesive layer, the ink-receiving layer including a composition for forming ink-receiving layer containing a resin and a silicone-based leveling agent. A content of the silicone-based leveling agent is 0.005 parts by mass or greater and less than 0.30 parts by mass per 100 parts by mass of the resin.