Aqueous Inkjet Ink for Humidity-Conditioning Materials
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Solution Overview
Problem
Existing methods for decorating humidity-conditioning construction materials face challenges in forming high-quality images with excellent water abrasion resistance without impairing the materials' humidity-conditioning performance, as they often require high-temperature baking, limit the surface area for decoration, and can result in safety issues due to uncured ink and reduced performance.
Innovation Solution
An aqueous inkjet ink comprising water, a water-dispersible resin, a colorant, and a silicone-based surfactant is used for inkjet printing on humidity-conditioning construction materials, ensuring the ink's stability and rapid penetration, which maintains the material's humidity-conditioning properties and allows for broad-area, high-quality image formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional decorating methods (baking treatment, ultraviolet-curable ink) are used, then image quality and water abrasion resistance are improved, but the humidity-conditioning performance of the material is impaired
Solution Approach 1:
The patent changes the chemical composition parameters of the ink by using water-soluble dyes and water-based binders instead of conventional ultraviolet-curable inks, and by controlling the pH value and solvent content. This allows the ink to penetrate the porous structure without blocking pores, maintaining humidity-conditioning performance while achieving good image quality and water resistance through proper formulation parameters
Solution Approach 2:
The patent replaces the thermal curing mechanism (baking treatment) and photopolymerization mechanism (ultraviolet curing) with a water-based drying and bonding mechanism. The water-based ink dries through evaporation and the binder forms a flexible film that provides water resistance without requiring high energy input that would block pores or degrade the material's humidity-conditioning properties
2Manufacturing precision
If ultraviolet-curable ink is used for decoration, then image formation is achieved, but the decorated surface area is limited and performance is reduced
Solution Approach 1:
The water-based ink formulation serves multiple functions simultaneously: it provides coloration through water-soluble dyes, ensures adhesion through water-based binders, achieves water resistance through proper binder selection, and maintains pore openness through controlled solvent content and viscosity. This multi-functionality allows broad-area decoration without the limitations of conventional inks
3Shape
If conventional decorating methods are used, then decorative design characteristics are enhanced, but safety issues arise due to uncured ink
Solution Approach 1:
The patent uses water-based materials that are inherently safe and environmentally friendly. The water-based binders and water-soluble dyes eliminate the need for hazardous ultraviolet-curable chemicals, providing a safe alternative that can be used in interior applications without concerns about uncured ink or harmful emissions
4Strength
If high-temperature baking treatment is applied, then water abrasion resistance is improved, but energy consumption increases and material properties may be altered
Solution Approach 1:
The patent replaces thermal energy input (baking) with a chemical formulation approach using water-based binders that provide adhesion and water resistance through their molecular structure rather than through thermal curing. This eliminates the need for high-temperature processing while achieving comparable or superior water abrasion resistance through proper binder selection and formulation
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 enables the creation of high-quality, water-resistant images across the surface of humidity-conditioning construction materials without compromising their humidity-control performance, ensuring long-term ink stability and safety, and allowing for various design applications without restrictions on surface area.
Implementation Method 1
ensuring the ink's stability and rapid penetration
Implementation Method 2
at least one surfactant selected from silicone-based surfactants
Implementation Method 3
a water-dispersible resin
Data Source
AI summary
Disclosed is an aqueous inkjet ink for a humidity-conditioning base material, the ink comprising water, a water-dispersible resin, a colorant, and at least one surfactant selected from among acetylene glycol-based surfactants and silicone-based surfactants.