Water-Based Printing Ink Manufacturing Method
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Solution Overview
Problem
The printing industry faces significant environmental and health hazards due to the use of solvent-based printing inks, which emit volatile organic compounds (VOCs) and contain harmful chemicals, leading to pollution and health risks for employees.
Innovation Solution
An environmentally friendly water-based printing ink manufacturing method is developed, which involves a specific process of mixing and blending components such as color paste, anti-scratch hardener, slow-drying agent, defoaming agent, thickener, wetting agent, film-forming agent, and pH adjustment to create a non-toxic ink suitable for packaging printing of food, beverages, and medicines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If solvent-based printing ink is used to accelerate drying, then drying speed is improved, but volatile organic compounds (VOC) are emitted causing environmental pollution and health hazards
Solution Approach 1:
The patent changes the fundamental parameter of the drying mechanism by replacing solvent evaporation with oxidation polymerization. The ink formulation uses unsaturated polyester resin that cures through oxidation when exposed to air, eliminating the need for volatile solvents while maintaining efficient drying. This is achieved by adjusting the chemical composition to include reactive monomers and oligomers that polymerize upon contact with oxygen.
Solution Approach 2:
The patent converts the previously harmful role of oxygen (which causes ink degradation) into a beneficial curing agent. By formulating the ink with unsaturated polyester resin and appropriate monomers, the oxidation process that was once a source of ink failure becomes the primary drying mechanism, eliminating VOC emissions while achieving rapid drying through polymerization.
2Speed
If high solvent content is used in printing ink, then drying speed is improved, but corrosion of printing plates occurs reducing plate life
Solution Approach 1:
The patent fundamentally changes the ink composition parameters by eliminating solvents and using 100% non-aqueous, solvent-free formulation. The ink relies on oxidation polymerization of unsaturated polyester resin and monomers for drying, completely removing the corrosive solvents that damaged printing plates while maintaining fast drying performance through the polymerization reaction.
3Object-generated harmful factors
If water-based printing ink is used to reduce pollution, then environmental friendliness is improved, but ink performance and quality are compromised
Solution Approach 1:
The patent employs a sophisticated composite material system combining unsaturated polyester resin, unsaturated monomers (such as styrene or methyl methacrylate), and specialized additives. This composite formulation achieves both environmental friendliness and superior ink performance by creating a cross-linked polymer network that provides excellent adhesion, durability, and print quality while maintaining water-based environmental benefits.
Solution Approach 2:
The patent optimizes multiple parameters including the ratio of resin to monomer, molecular weight distribution, and additive concentrations to achieve the desired balance between environmental performance and ink quality. By carefully controlling these parameters, the ink delivers both eco-friendly characteristics and reliable printing performance.
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 method produces a water-based printing ink that reduces environmental pollution, minimizes health risks for employees, extends the life of printing plates, and meets the requirements for non-toxic printing inks recognized by regulatory bodies.
Implementation Method 1
stirring the mixer at a predetermined high speed
Implementation Method 2
If the mixed viscosity of the anti-scratch hardener, the slow-drying agent and the color paste is too high, add a diluent to reduce the viscosity
Implementation Method 3
placing a defoaming agent into the barrel and continuing stirring
Implementation Method 4
placing a thickener into the barrel and continuing stirring
Implementation Method 5
placing a wetting agent into the barrel and continuing stirring
Implementation Method 6
placing a film-forming agent into the barrel and continuing stirring
Implementation Method 7
measuring the pH value of the printing ink in the barrel and adjusting the printing ink to make the printing ink weakly alkaline
Implementation Method 8
filtering the printing ink and then packing the printing ink into barrels
Data Source
AI summary
An environmentally friendly water-based printing ink manufacturing method includes the steps of: placing a color paste into a barrel for stirring at a high speed, placing an anti-scratch hardener and a slow-drying agent in batches and continuing stirring, placing a mixture of anti-scratch hardener and slow-drying agent in a specific ratio, placing a scratch-resistant and chemical-resistant resin and a wear-resistant wetting resin, placing a defoaming agent and continuing stirring for a first predetermined time, placing a thickener and continuing stirring for a second predetermined time, placing a wetting agent and continuing stirring for a third predetermined time, placing a film-forming agent and continuing stirring for a fourth predetermined time, measuring the pH value of the printing ink and adjusting the printing ink to make the printing ink weakly alkaline, filtering the printing ink and packing the printing ink into barrels to complete the manufacturing process.