Variable Reaction-Liquid Dosing for Inkjet Laminate Adhesion

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Solution Overview

Problem

Inkjet recording apparatuses face issues with decreased adhesion between a laminate layer and the surface layer of an ink layer due to the inclusion of lubricants like wax particles in the color material ink, which reduces the fastness of the ink layer on recorded products.

Innovation Solution

A recording apparatus that controls the application amount of a reaction liquid based on the application amount of color material ink and the setting of lamination processing, adjusting the reaction liquid application to enhance adhesion when lamination processing is required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a lubricant such as wax particles is included in the color material ink to improve the slipperiness of the surface layer, then the fastness of the ink layer is improved, but the adhesion to the laminate layer is reduced

Engineering Contradiction:

Improvefastness of ink layerVSAvoidadhesion to laminate layer

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent applies dynamics by making the reaction liquid application amount variable rather than fixed. The recording unit adjusts the amount of reaction liquid applied based on the detected amount of color material ink, creating a dynamic system that adapts to different recording conditions to optimize both fastness and adhesion

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of reaction liquid application amount based on the detected ink amount. By varying this parameter dynamically, the system achieves optimal balance between maintaining ink layer fastness and ensuring proper adhesion for lamination processing

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If the amount of reaction liquid is increased to reduce bleeding, then the bleeding phenomenon is reduced, but the adhesion to the laminate layer may be affected

Engineering Contradiction:

Improvebleeding reductionVSAvoidadhesion to laminate layer

Core Design Contradiction:

Manufacturing precisionVSStrength

Solution Approach 1:

The system dynamically adjusts the reaction liquid application amount based on real-time detection of color material ink amounts. This dynamic adjustment allows the system to achieve optimal bleeding reduction while maintaining appropriate adhesion properties for lamination

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements feedback control where the recording unit detects the amount of color material ink applied and uses this information to adjust the reaction liquid application amount accordingly. This closed-loop feedback system ensures optimal balance between bleeding reduction and adhesion maintenance

Inventive Principle:

Principle #23Feedback

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

Improves the adhesion of the laminate layer to the ink layer by reducing the presence of lubricants on the surface, ensuring the fastness and integrity of the recorded product.

Implementation Method 1

a reaction liquid containing a component that causes the color material contained in the color material ink to aggregate

Methodology Applied

Scientific EffectAggregation: Coagulation

Data Source

PatentUS20250319704A1Recording apparatus, image processing method, recording apparatus and storage medium

Publication Date: 2025.10.16 CANON KK

AI summary

The among of application of a reagent in a case where a lamination processing mode is set is determined to be greater than the amount of application of a reaction liquid in a case where the lamination processing mode is not set, whereby adhesion to a laminate layer is improved.