Dye printing treatment liquid composition, composition set, printing method, and ink jet printing method
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Solution Overview
Problem
Existing dye printing techniques struggle to achieve excellent color development and texture on natural fiber cloths, as inks with dispersive dyes have low affinity and require pre-treatment liquids that are not effective for these fibers.
Innovation Solution
A dye printing treatment liquid composition containing a polyester resin with structural units derived from aromatic and non-aromatic compounds, including phthalic acid and (poly)alkylene glycol, which adheres to the cloth, enhancing ink affinity and providing a balance between color development and texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a pre-treatment liquid is used on natural fiber cloth to improve color development, then color development property is improved, but texture quality deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the treatment liquid by specifying precise compositional ratios: polyester resin 0.01-5 mass%, phosphoric acid 0.1-10 mass%, and water balance. This parameter optimization enables effective treatment of natural fibers while maintaining texture quality, resolving the contradiction between color development and texture preservation
2Ease of manufacture
If dispersive dye ink is used on natural fiber cloth, then printing cost is reduced, but ink affinity deteriorates
Solution Approach 1:
The patent introduces a treatment liquid as an intermediary substance between the dispersive dye ink and the natural fiber cloth. The treatment liquid modifies the cloth surface to enhance ink affinity, enabling cost-effective dispersive dye printing on natural fibers without sacrificing printing quality or color fastness
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 treatment liquid composition improves color development and texture on natural fibers by increasing ink affinity, while maintaining abrasion resistance and washing fastness, resulting in a printed matter with superior properties.
Implementation Method 1
a dye printing treatment liquid composition which is used to be adhered to a cloth
Data Source
AI summary
A dye printing treatment liquid composition is used to be adhered to a cloth and includes a polyester resin and water, the polyester resin includes a structural unit derived from an aromatic compound and a structural unit derived from a non-aromatic compound, the aromatic compound includes a phthalic acid, the non-aromatic compound includes a (poly)alkylene glycol, a content of a structural unit derived from the phthalic acid with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole, and a content of a structural unit derived from the (poly)alkylene glycol with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole.