Polyester Dye Solution for Low-Pressure Permanent Fabric Printing
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Solution Overview
Problem
Dyeing polyester fabrics is challenging due to their hydrophobic nature, requiring high pressure and temperature, which can damage the fabric and result in non-permanent coloration using conventional methods, and existing solutions like 'burn out' printing are limited by the need for acid environments and increased costs.
Innovation Solution
A dye solution incorporating a phthalamine derivative carrier, an acidic thickener, and isoparaffinic solvent creates an acid environment allowing dye penetration at lower temperatures without pressure, enabling permanent coloration in polyester fabrics without altering their moisture transfer properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high pressure and temperature are applied to drive dye into polyester threads, then dye penetration and permanence are improved, but fabric damage and visual maring occur
Solution Approach 1:
The patent introduces a carrier compound as an intermediary substance that facilitates dye penetration into polyester fibers at lower temperatures. The carrier acts as a mediator between the dye and the hydrophobic polyester threads, enabling dye transfer without requiring extreme heat and pressure that would damage the fabric.
Solution Approach 2:
The invention changes the chemical parameters of the dyeing environment by using a carrier compound that alters the interaction between dye and polyester. This chemical parameter change allows dye penetration at reduced temperature and pressure conditions, avoiding fabric damage while maintaining dye permanence.
2Object-affected harmful factors
If conventional printing techniques are used without pressure and temperature, then fabric damage is avoided, but dye penetration is insufficient and coloration is non-permanent
Solution Approach 1:
The carrier compound serves as a chemical intermediary that enables dye transfer to polyester at mild conditions. This mediator overcomes the hydrophobic barrier of polyester fibers, allowing conventional printing techniques to achieve permanent coloration without requiring damaging pressure and temperature.
3Reliability
If heat and pressure are applied to polyester fabric, then dye penetration is improved, but porosity and moisture transfer abilities are damaged
Solution Approach 1:
The invention changes the thermal and chemical parameters of the dyeing process by introducing a carrier compound that enables dye transfer at lower temperatures. This parameter change prevents the thermal and mechanical damage to fabric porosity and moisture transfer properties that would result from conventional high-temperature dyeing.
4Adaptability or versatility
If burn out printing is used to create patterns on polyester, then creative options are increased, but manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts the acid treatment step from the traditional burn-out process by using a carrier compound that creates localized acidic conditions only where the dye is applied. This extraction eliminates the need for separate acid application and washing steps, reducing manufacturing complexity while maintaining design versatility.
Solution Approach 2:
The invention merges the burn-out acid treatment and dyeing steps into a single simultaneous process. The carrier compound releases acid in the presence of moisture from the dye solution, creating both the pattern and the dye penetration condition in one step, thereby reducing manufacturing complexity and cost.
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 solution allows for precise and permanent dyeing of polyester fabrics without damaging them, enabling more conventional printing techniques and maintaining fabric functionality, such as moisture transfer, while reducing manufacturing complexity and costs.
Implementation Method 1
this carrier alters the permeability of the threads of the fabric to allow dye particles to enter and become embedded in the threads of the fabric
Implementation Method 2
A dye solution incorporating a phthalamine derivative carrier, an acidic thickener, and isoparaffinic solvent creates an acid environment allowing dye penetration at lower temperatures without pressure
Implementation Method 3
A dye solution incorporating a phthalamine derivative carrier, an acidic thickener, and isoparaffinic solvent
Data Source
AI summary
A dye solution for dyeing polyester fabric including dye, a liquid carrier, an acidic agent, and a thickening agent. The carrier is selected to enhance the permeability of the polyester fabric at a certain temperature so that the dye can penetrate within the fabric. A method of printing designs on polyester fabric including creating a dye solution with water, a dye, a carrier liquid and an acidic solution. The dye solution is applied to the fabric in a desired pattern. The fabric and dye solution are then dried in as drier so that the temperature of the carrier is raised to permit the carrier to enhance the permeability of the fabric and have the dye penetrate the fabric. The carrier is then driven out of the fabric by the dryer and no pressure is applied to the fabric during the drying process.