Textile Printing With Polyester Resin Particles for Non-Polyester Fabrics
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Solution Overview
Problem
Existing textile printing methods using disperse dyes face challenges in achieving effective color development and texture preservation on fabrics made from natural and synthetic fibers other than polyester, due to unsuitable conditions for dye development.
Innovation Solution
A textile printing method involving the adhesion of particulate polyester resin particles and disperse dyes to fabrics using an inkjet process, followed by heating, which allows for vivid color development and fixation of the resin particles without impairing the fabric's original texture, utilizing a polyester resin with a softening point lower than the sublimation temperature of the dye and specific acid number and glass-transition temperature for improved water resistance and texture preservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If disperse dyes are used for textile printing on fabrics made from natural fibers or synthetic fibers other than polyester, then the printing process can be performed, but the color development is insufficient and the printing quality deteriorates
Solution Approach 1:
The patent introduces polyester resin particles as an intermediary substance that mediates between the disperse dye and non-polyester fabric substrates. The polyester resin particles serve as a carrier that enables effective color development on fabrics made from natural fibers or synthetic fibers other than polyester, thereby resolving the incompatibility between disperse dyes and non-polyester materials
Solution Approach 2:
The patent changes the physical and chemical parameters of the printing system by incorporating polyester resin particles with specific properties (particle size, softening point, acid number). These parameter changes enable the printing process to achieve satisfactory color development on various fabric types while maintaining fabric texture
2Reliability
If polyester resin particles are adhered to fabric surfaces to enable color development, then printing quality on various fabrics is improved, but the fabric texture may be impaired
Solution Approach 1:
The patent applies local quality by using fine polyester resin particles that are distributed locally on fabric surfaces rather than forming continuous coatings. This localized application enables color development while preserving the overall fabric texture and appearance
Solution Approach 2:
The patent utilizes the porous structure of the polyester resin particles to enable dye penetration and color development while maintaining fabric breathability and texture. The particles provide sufficient surface area for dye adhesion without blocking fabric pores
3Reliability
If heating is performed to fix polyester resin particles and develop dye color, then printing permanence is improved, but energy consumption increases
Solution Approach 1:
The patent changes the heating parameters by selecting polyester resin particles with specific softening points that are lower than the sublimation temperature of disperse dyes. This parameter optimization enables effective printing permanence at reduced heating temperatures and energy consumption
Solution Approach 2:
The patent utilizes phase transitions of the polyester resin particles (melting at softening point) to facilitate dye sublimation and color development. The controlled phase change enables efficient heat utilization and reduces overall energy requirements for the printing process
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
This method enables effective textile printing on various materials by ensuring proper dye development and resin fixation, maintaining fabric texture and improving washing fastness and water resistance.
Implementation Method 1
a heating process of heating the fabric having the particles of the polyester resin and the dye adhered thereto, thereby developing the color of the dye while fixing the particles of the polyester resin to the fabric
Implementation Method 2
a dye adhesion process of adhering particles of a polyester resin which is a particulate polyester resin and a dye to the fabric
Implementation Method 3
utilizing a polyester resin with a softening point lower than the sublimation temperature of the dye
Data Source
AI summary
A textile printing is more appropriately performed on fabrics made from various materials. A textile printing method of performing textile printing on a textile printing object which is a fabric includes a dye adhesion process of adhering particles of a polyester resin which is a particulate polyester resin, and a dye to the fabric, and a heating process of heating the textile printing object having the particles of the polyester resin and the dye adhered thereto, thereby developing the color of the dye while fixing the particles of the polyester resin to the textile printing object.