Ink Jet Recording Method Double-Sided Image Quality
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Solution Overview
Problem
Ink jet recording methods face challenges in creating high-quality images on both sides of a recording medium without degrading the first image or contaminating the transport mechanism, due to the complexity of the transport mechanism and potential image contact or friction.
Innovation Solution
An ink jet recording method involving a three-process approach: first, forming a first image with coloring ink; second, forming a background image with background ink that covers the first image; and third, forming a second image with coloring ink, with a drying process between the first and third processes to prevent bleeding and enhance image quality, using separate nozzle columns for each ink type and optimizing the transport direction for each process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If images are recorded on both faces of a recording medium using conventional methods, then a recorded product observable from both sides can be created, but the transport mechanism becomes complicated and the first image degrades due to contact and friction with the transport mechanism
Solution Approach 1:
The patent applies the inversion principle by recording images in reverse sequence: first recording the background image on the first face, then recording the foreground image on the second face after flipping the medium. This reverses the conventional approach and allows the first recorded image to be protected by the background layer, preventing degradation during transport and observation.
Solution Approach 2:
The patent transitions from single-sided to double-sided recording by utilizing the third dimension (the other face of the recording medium). This allows creation of viewed-through images where the background image on the first face and foreground image on the second face combine to form a complete visual effect observable from both sides.
2Manufacturing precision
If a drying process is performed between recording processes, then image bleeding is prevented and image quality is enhanced, but recording time is increased
Solution Approach 1:
The patent applies preliminary action by performing a drying process between the background image recording and foreground image recording. This intermediate drying step prevents ink bleeding when layers are combined, ensuring high image quality. The drying process is integrated into the overall recording sequence rather than being an afterthought.
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
This method allows for high-quality images on both sides of the recording medium, reducing image degradation and transport mechanism contamination, while improving image cohesion and bleeding prevention through controlled drying and nozzle column arrangement.
Implementation Method 1
a coloring ink is recorded on a recording medium using an ink jet head so as to form a first image
Implementation Method 2
a drying process is included between the first process and the third process
Data Source
AI summary
An ink jet recording method includes a first process in which a coloring ink is recorded on a recording medium using an ink jet head so as to form a first image, a second process in which a background ink is recorded using the ink jet head so as to form a background image that covers the first image, and a third process in which a coloring ink is recorded using the ink jet head so as to form a second image, and a drying process is included between the first process and the third process.