Treatment liquid composition for ink jet pigment textile printing, treatment liquid composition set for ink jet pigment textile printing, and ink jet textile printing method

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Solution Overview

Problem

Ink jet pigment textile printing methods face challenges with color developability, particularly on polyester or polyester mixed fabrics, where ink permeation and sinking issues lead to poor color retention and unevenness.

Innovation Solution

A treatment liquid composition containing a cationic compound, a nonionic fluorine-based surfactant with an HLB value between 6 and 13, and resin particles is used to prevent ink permeation into the fabric, ensuring excellent color developability and uniformity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If ink jet pigment textile printing is performed on polyester or polyester mixed fabrics, then productivity and versatility are improved, but color developability deteriorates due to ink permeation and sinking into the fabric

Engineering Contradiction:
Improvefabric type compatibilityVSAvoidcolor developability
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies a treatment liquid containing fluorine-based surfactant and resin particles to the fabric surface before ink jet printing. This preliminary treatment creates a surface layer that prevents ink penetration, thereby improving color developability on polyester fabrics while maintaining versatility across different fabric types.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The treatment liquid acts as an intermediary between the ink and the fabric. The fluorine-based surfactant and resin particles in the treatment liquid form a mediating layer that controls ink interaction with the fabric, preventing unwanted penetration while allowing controlled color deposition.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If treatment liquid is used to physically fix pigment to fabric surface, then color developability is improved, but unevenness in color development occurs

Engineering Contradiction:
Improvecolor developabilityVSAvoidcolor uniformity
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The treatment liquid is formulated as a composite material containing fluorine-based surfactant, resin particles, and other components that work synergistically. The fluorine-based surfactant provides uniform surface activity while resin particles provide structured support, together preventing both penetration and unevenness.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent specifies precise parameter ranges for the treatment liquid components, including fluorine-based surfactant content (0.1-5 mass%) and resin particle concentration, to optimize both color developability and uniformity. These controlled parameters ensure consistent performance across different printing conditions.

Inventive Principle:
Principle #35Parameter changes

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 effectively suppresses ink penetration and enhances color developability on polyester fabrics, achieving improved color retention and uniformity even with chromatic color pigments, while maintaining rubbing fastness.

Implementation Method 1

a nonionic fluorine-based surfactant, and water, wherein the nonionic fluorine-based surfactant has an HLB value within a range of 6 or more and 13 or less

Methodology Applied
Scientific EffectSurface tension reduction: Surfactant

Implementation Method 2

a treatment liquid composition for attachment to a fabric in ink jet pigment textile printing and which contains a cationic compound

Methodology Applied
Scientific EffectElectrostatic adsorption: Adsorption

Data Source

PatentEP3521507B1Treatment liquid composition for ink jet pigment textile printing, treatment liquid composition set for ink jet pigment textile printing, and ink jet textile printing method
Publication Date: 2021.10.27 SEIKO EPSON CORP
  • EP3521507B1 patent drawingFigure 1
  • EP3521507B1 patent drawing

AI summary

A treatment liquid composition for ink jet pigment textile printing according to the invention is used by being attached to a fabric and contains a cationic compound, a nonionic fluorine-based surfactant, a resin particle, and water.