Ink Jet Recording Method for White Overlaying Layer and Pattern
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Solution Overview
Problem
Ink jet systems struggle to produce high-quality prints with color images on a white background, particularly in remote proofing applications, where the output quality is not satisfactorily achieved using conventional methods.
Innovation Solution
The method involves using two ink jet printers to sequentially record a white overlaying layer and a non-white pattern layer on a longitudinal film base material, with the white overlaying layer being applied first and then the non-white pattern layer, or vice versa, depending on the material's opacity, using a white ink composition containing hollow polymer fine particles or porous inorganic pigments to achieve high-quality printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional ink jet systems are used for printing color images on white background, then cost is reduced, but printing quality is insufficient
Solution Approach 1:
The printing process is divided into two separate ink jet printers: the first printer deposits the white overlaying layer, and the second printer deposits the color pattern layer. This segmentation allows each printer to be optimized for its specific function, achieving high printing quality while using relatively simple and inexpensive ink jet systems rather than requiring a single complex high-end printer
Solution Approach 2:
The white overlaying layer is printed first on the film base material before the color pattern layer is applied. This preliminary action ensures that a clean white background is established first, which then serves as the foundation for the color printing, guaranteeing high-quality output even with standard ink jet systems
2Manufacturing precision
If two ink jet printers are used to print white overlaying layer and pattern layer separately, then printing quality is improved, but processing time is increased
Solution Approach 1:
The two ink jet printers are arranged in sequence to process the longitudinal film base material continuously. The first printer deposits the white layer, which is then immediately processed by the second printer for the color pattern, eliminating idle time between operations and maintaining continuous productive action throughout the printing process
Solution Approach 2:
The invention processes the film base material in a longitudinal direction, with multiple printers arranged along the length of the material. This dimensional arrangement allows simultaneous processing of different sections of the material through the sequential printers, efficiently utilizing the extended surface area of the longitudinal film to minimize processing time
3Manufacturing precision
If white ink with hollow polymer fine particles is used, then white background quality is improved, but ink complexity is increased
Solution Approach 1:
The white ink contains hollow polymer fine particles as a composite material component that provides superior white background quality through light scattering and reflection properties. This composite ink formulation achieves high-quality white overlaying layer that enhances the overall printing quality when combined with the color pattern layer
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 approach enables high-quality printing with precise registration of the white overlaying layer and non-white pattern layer, meeting the quality demands of direct digital color proofing calibrations and providing a clear white background for color images, thus enhancing the output quality of printed matter.
Implementation Method 1
a white ink for use in ink jet recording, the ink which contains therein hollow polymer fine particles has been proposed
Implementation Method 2
an ink jet recording method in which a printing unit including a white overlaying layer and a non-white pattern layer is recorded on the surface of a longitudinal film base material by two liquid discharge means
Implementation Method 3
the ink which contains therein hollow polymer fine particles has been proposed
Data Source
AI summary
The present invention relates to an ink jet recording method for recording a white overlaying layer and a non-white pattern layer to a recording medium, printed matters obtained by the recording method, and systems for realizing the recording method thereof.