Ink Jet Textile Printing Method And Set
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Solution Overview
Problem
Existing ink jet textile printing methods using an ink jet method to attach a reaction solution containing an aggregating agent to fabric fail to achieve good rubbing fastness and color developing properties, and are prone to image quality disturbances due to fabric fluffing.
Innovation Solution
An ink jet textile printing method that includes a reaction solution attaching step, a transparent ink attaching step, and a colored ink attaching step, where the reaction solution and transparent ink composition are applied in a single scanning of an ink jet head, with a minimum total attachment amount per unit area per unit time of 34 mg/(s·inch2) or more, forming a resin layer on the fabric surface to enhance color developing properties and rubbing fastness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a reaction solution containing an aggregating agent is attached to fabric using an ink jet method, then color developing properties are improved, but rubbing fastness deteriorates
Solution Approach 1:
The patent combines the reaction solution attaching step and transparent ink attaching step into a single scanning operation, applying both materials simultaneously to the same region of fabric. This merging of operations ensures proper interaction between the aggregating agent and resin particles while maintaining consistent application parameters, thereby achieving both good color developing properties and rubbing fastness
Solution Approach 2:
The patent specifies a minimum total attachment amount of 34 mg/(s·inch2) for the reaction solution and transparent ink composition applied in a single scanning. This parameter control ensures sufficient material deposition for proper aggregation and resin layer formation, resolving the contradiction between color development and rubbing fastness
2Productivity
If the reaction solution and transparent ink composition are applied in a single scanning, then productivity is improved, but manufacturing precision deteriorates due to fabric fluffing
Solution Approach 1:
The patent applies the reaction solution containing the aggregating agent before applying the transparent ink composition containing resin particles in a single scanning. This preliminary action allows the aggregating agent to be already present on the fabric when the resin particles are deposited, ensuring proper aggregation occurs during the high-speed single-scan process without compromising image quality
Solution Approach 2:
The patent maintains a minimum total attachment amount of 34 mg/(s·inch2) during the single scanning operation, ensuring sufficient material deposition even at high printing speeds. This parameter control compensates for potential fabric fluffing effects while maintaining productivity
3Manufacturing precision
If large total attachment amounts of reaction solution and ink are used, then color developing properties are improved, but fabric fluffing increases causing image quality disturbance
Solution Approach 1:
By combining the reaction solution and transparent ink application into a single scanning operation, the patent achieves uniform material distribution and proper interaction between components. This merging allows effective use of the total attachment amount (minimum 34 mg/(s·inch2)) to improve color development while minimizing fabric disturbance that would occur with separate, multiple application passes
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 method achieves good rubbing fastness and color developing properties by forming a resin layer on the fabric surface, while reducing image quality disturbances from fabric fluffing, even with large total attachment amounts of the reaction solution and ink.
Implementation Method 1
a reaction solution containing an aggregating agent that aggregates components in an ink
Implementation Method 2
transparent ink composition containing anionic resin particles that react with the aggregating agent and are aggregated
Data Source
AI summary
An ink jet textile printing method according to one embodiment of the present disclosure includes a reaction solution attaching step of attaching a reaction solution containing an aggregating agent that aggregates components in an ink, and water to a fabric using an ink jet method, a transparent ink attaching step of attaching a transparent ink composition containing anionic resin particles and water to a fabric using the ink jet method, and a colored ink attaching step of attaching a colored ink composition containing a pigment, resin particles, and water onto a region, to which the transparent ink composition is attached, using the ink jet method, in which the reaction solution attaching step and the transparent ink attaching step include Step 1, and in Step 1, a range of a minimum value of a total attachment amount of the reaction solution and the transparent ink composition per unit area/per unit time is 34 mg/(s·inch2) or more, Step 1: applying the reaction solution and the transparent ink composition to the same region in the fabric in a single scanning of an ink jet head.