Ink Jet Ink Composition Preventing Aggregate Formation
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Solution Overview
Problem
Water-based ink jet ink compositions used for printing on materials like cloth often suffer from the formation of foreign material aggregates within the ink receiving body, particularly when stored for long periods or exposed to high temperatures, due to moisture absorption by polyolefin materials.
Innovation Solution
An ink jet ink composition comprising sublimation dyes such as C.I. Disperse Orange 25, C.I. Disperse Brown 27, and anionic surfactants like polyoxyethylene alkyl ether sulfate, which stabilize dye dispersion by shifting electric charges and improving compatibility, thereby preventing aggregate formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If water-based ink jet ink composition is stored in polyolefin ink receiving body, then convenience of storage is improved, but foreign material aggregates are generated due to moisture absorption by polyolefin
Solution Approach 1:
The patent introduces a polyethylene terephthalate (PET) film as an intermediary barrier between the water-based ink composition and the polyolefin ink receiving body. This PET film prevents moisture from the ink composition from being absorbed by the polyolefin, thereby eliminating the generation of foreign material aggregates while maintaining the convenience of using polyolefin containers for storage
2Duration of action of stationary object
If ink composition is stored for long period or exposed to high temperature, then storage duration is extended, but aggregate formation increases due to moisture absorption
Solution Approach 1:
The PET film acts as a protective intermediary that prevents moisture transfer between the ink composition and the polyolefin container wall. This barrier function remains effective during long-term storage and high-temperature conditions, preventing the moisture absorption that would otherwise lead to aggregate formation and deterioration of the ink composition
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 composition effectively prevents the generation of foreign material aggregates in the ink receiving body, enhancing storage stability and preventing degradation, even when stored with polyolefin inner walls.
Implementation Method 1
anionic surfactant includes at least one selected from the group consisting of a polyoxyethylene alkyl ether sulfate, a polyoxyethylene alkenyl ether sulfate, a polyoxyethylene aryl ether sulfate, and a polyoxyethylene alkyl ether phosphate
Implementation Method 2
an ink jet ink composition comprising: a sublimation dye
Data Source
AI summary
An ink jet ink composition of the present disclosure includes a sublimation dye; an anionic dispersant; and an anionic surfactant, the sublimation dye includes at least one selected from the group consisting of C.I. Disperse Orange 25, C.I. Disperse Orange 80, C.I. Solvent Orange 60, C.I. Disperse Brown 27, C.I. Disperse Violet 28, and C.I. Solvent Violet 13, and the anionic surfactant includes at least one selected from the group consisting of a polyoxyethylene alkyl ether sulfate, a polyoxyethylene alkenyl ether sulfate, a polyoxyethylene aryl ether sulfate, and a polyoxyethylene alkyl ether phosphate.