Active Energy Ray-Curable Ink Composition for Misting-Resistant Fast Drying
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Solution Overview
Problem
Existing active energy ray-curable ink compositions exhibit insufficient misting resistance and drying properties, which are crucial for high-speed and large-volume printing applications.
Innovation Solution
An active energy ray-curable ink composition comprising a pigment, an allylic polymer obtained by polymerizing an allylic compound represented by Formula (I), an ethylenically unsaturated compound, and a photoinitiator, with a specific amount of photoinitiator, enhances misting resistance and drying properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional active energy ray-curable ink compositions are used, then curing speed and film formation are improved, but misting resistance is insufficient
Solution Approach 1:
The patent changes the chemical composition parameters by introducing a specific binder resin with hydroxyl groups and using particular photoinitiator systems, which fundamentally alters the curing mechanism to achieve both rapid curing and high misting resistance simultaneously
Solution Approach 2:
The patent creates a composite ink composition combining multiple resin components (including the hydroxyl-containing binder resin), pigments, and photoinitiators that work synergistically to provide both fast curing properties and superior misting resistance
2Productivity
If conventional ink compositions are used for high-speed printing, then productivity is improved, but drying properties are insufficient
Solution Approach 1:
The patent modifies the chemical parameters of the ink composition by incorporating hydroxyl-group containing binder resins and specific photoinitiators, which change the drying mechanism to enable rapid evaporation and curing suitable for high-speed printing while maintaining excellent drying properties
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 composition achieves high misting resistance and drying properties, ensuring improved performance in high-speed and large-volume printing applications.
Implementation Method 1
an allylic polymer (B) obtained by polymerizing at least one allylic compound represented by Formula (I)
Implementation Method 2
when exposed to active energy rays, the ink compositions are instantly cured to form a tough film by three-dimensional crosslinking of the active energy ray-curable compounds
Data Source
AI summary
The present invention provides an active energy ray-curable ink composition that has high misting resistance (scattering resistance) and further has high drying properties. The present invention relates to an active energy ray-curable ink composition containing a pigment (A); an allylic polymer (B) obtained by polymerizing an allylic compound represented by Formula (I) below; an ethylenically unsaturated compound (C); and a photoinitiator (D), the active energy ray-curable ink composition containing at least 5.0% by mass of the photoinitiator (D).