Ink Formulation Balancing Defoaming and Storage Stability
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Solution Overview
Problem
Existing inks struggle to balance defoaming properties with storage stability while achieving high image density and quality across various media types.
Innovation Solution
An ink formulation containing specific acetylene-based compounds and fluorescent brighteners, along with a balanced ratio of water-soluble organic solvents, enhances defoaming properties and storage stability, producing high-density images on diverse media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ink formulations are used, then storage stability may be maintained, but defoaming property deteriorates and image density is reduced
Solution Approach 1:
The patent applies parameter changes by carefully controlling the HLB values of acetylene-based compounds within specific ranges (3-5 and 8-13) and maintaining a mass ratio between 0.1-2.0. This optimization of chemical parameters enables the ink to achieve both excellent defoaming properties and storage stability simultaneously, resolving the technical contradiction between these two characteristics.
Solution Approach 2:
The patent employs composite materials by combining multiple acetylene-based compounds with different HLB values (one with HLB 3-5 and another with HLB 8-13) along with fluorescent brighteners and water-soluble organic solvents. This composite formulation creates synergistic effects that improve defoaming performance while maintaining storage stability and image density.
2Object-generated harmful factors
If ink formulations prioritize defoaming properties, then foaming is reduced, but storage stability deteriorates
Solution Approach 1:
The patent resolves this contradiction by changing the parameters of acetylene-based compounds to specific HLB ranges (3-5 and 8-13) and controlling their mass ratio between 0.1-2.0. This precise parameter optimization enables the ink to achieve effective defoaming while simultaneously maintaining excellent storage stability.
Solution Approach 2:
The patent uses composite materials by formulating a mixture of acetylene-based compounds with complementary HLB values. The combination of a low-HLB compound (3-5) and a medium-HLB compound (8-13) creates a balanced system that provides both defoaming capability and storage stability without compromising either property.
3Quantity of substance
If ink formulations use standard additives, then basic performance is maintained, but image density and quality are reduced
Solution Approach 1:
The patent achieves high image density by changing the parameters of the ink formulation, specifically incorporating fluorescent brighteners and controlling the HLB values and ratios of acetylene-based compounds. These parameter changes enhance light reflection and image quality without requiring overly complex formulation procedures.
Solution Approach 2:
The patent introduces fluorescent brighteners as intermediary substances that mediate between the ink components and the final image quality. These brighteners enhance image density and visual quality by reflecting light, acting as a mediator that improves output without significantly complicating the core ink 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 ink achieves improved defoaming, storage stability, and high image density on various media types, ensuring reliable discharge and image quality.
Implementation Method 1
an acetylene-based compound having an HLB of from 8 to 13, an acetylene-based compound having an HLB of from 3 to 5 or 2,4,7,9-tetramethyldecyne-4,7-diol
Implementation Method 2
a fluorescent brightener
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An ink contains a coloring material, a water-soluble organic solvent, water, an acetylene-based compound having an HLB of from 8 to 13, and a compound represented by Chemical Formula 1 or Chemical Formula 2, where m represents an integer of from 1 to 4, where R1 represents an alkyl group having 1 to 20 carbon atoms, aralkyl group having 7 or 8 carbon atoms, or ally group, 1 represents 0 or an integer of from 1 to 7, and n represents an integer of from 20 to 200.