Aqueous Offset Ink Composition for Low-VOC Printing Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing offset printing inks pose environmental and health hazards due to petroleum-based organic solvents, and there is a need for eco-friendly, non-toxic inks that maintain printing quality and efficiency.
Innovation Solution
An aqueous offset ink composed of aqueous acryl, aqueous urethane, polyester, water, ethanol, pigment, and additives, which are free of petroleum-based solvents, maintaining printing quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If petroleum-based organic solvents are used in offset printing ink, then printing quality and process efficiency are maintained, but environmental pollution and health hazards increase due to VOC emissions
Solution Approach 1:
The patent changes the fundamental parameter of the solvent system from petroleum-based organic solvents to water-based solvents. This parameter change eliminates VOC emissions and associated health hazards while maintaining printing quality through optimized formulation of aqueous resin components and pigments
Solution Approach 2:
The patent uses composite material formulation by combining multiple aqueous resin components (aqueous acryl, aqueous polyurethane, aqueous polyester) with pigments and additives. This composite approach maintains the functional properties needed for quality printing while using environmentally friendly water-based components
2Adaptability or versatility
If oil-based ink composition is used, then hydrophobic nature and printing efficiency are maintained, but eco-friendliness and worker safety deteriorate
Solution Approach 1:
The patent changes the hydrophobic parameter to hydrophilic by using water as the base solvent instead of petroleum-based organic solvents. This parameter change achieves eco-friendliness while maintaining printing process compatibility through careful selection of aqueous resin components that replicate the functional properties of traditional oil-based inks
3Object-affected harmful factors
If aqueous materials are used to replace oil-based solvents, then environmental friendliness improves, but printing quality and process efficiency may deteriorate due to water-oil repulsion properties
Solution Approach 1:
The patent employs a composite material system combining aqueous acryl, aqueous polyurethane, and aqueous polyester resins with pigments and functional additives. This composite formulation maintains printing process efficiency by achieving proper viscosity, transfer properties, and drying characteristics despite using water-based components instead of oil-based solvents
Solution Approach 2:
The patent optimizes multiple parameters including resin composition ratios, molecular weight distribution, and additive concentrations to ensure that the aqueous ink system achieves printing speed, transfer efficiency, and drying performance comparable to traditional oil-based inks while eliminating VOC emissions
Data Source
AI summary
The present invention relates to an aqueous offset ink and a preparation method therefor, the ink using an aqueous acrylic, an aqueous urethane and a polyester so as to improve the atmospheric environment, provide an eco-friendly printing environment, make nontoxic prints, and maintain adhesive strength, water resistance and abrasion resistance, which are the advantages of a synthetic resin.