Decorative Paper Digital Printing Primer Ink Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of decorative papers faces challenges in achieving high-quality prints with consistent reproducibility due to the interdependent influence of paper type, ink quantity, primer application, and environmental factors such as humidity and temperature, which complicates optimization and increases costs.
Innovation Solution
A method utilizing a digital printing facility with specific parameters like paper grammage, primer application, and ink usage, combined with advanced features like automatic roller bearing, error monitoring, and ink circulation systems, ensures high-quality, cost-effective production of decorative papers with improved reproducibility and reduced waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital printing facilities are used to print decorations on paper webs, then productivity and manufacturing speed are improved, but manufacturing precision and print quality become difficult to control due to the interdependent influence of multiple parameters
Solution Approach 1:
The patent applies parameter changes by establishing specific ranges for paper grammage (45-65 g/m²), primer application quantity (4-6 g/m²), and ink application quantity (at most 7.5 g/m²). These parameter specifications transform the uncontrollable multiple parameters into controlled variables, enabling both high-speed digital printing and consistent print quality. The primer application before printing modifies the paper surface parameters to improve ink absorption characteristics.
Solution Approach 2:
The patent implements preliminary action by applying a primer coating to the paper web before printing the decoration. This preliminary step prepares the paper surface by creating an intermediate layer that controls ink absorption and prevents parameter interdependence issues during the actual printing process. The primer application quantity is specifically controlled at 4-6 g/m² to optimize subsequent printing results.
2Manufacturing precision
If multiple parameters are optimized independently to achieve high-quality prints, then manufacturing precision is improved, but device complexity and process complexity increase
Solution Approach 1:
The patent merges the primer application and printing processes into a single integrated production line. The primer is applied in-line before printing without requiring separate offline processing steps. This combination simplifies the overall process by creating a unified workflow where the primer application quantity (4-6 g/m²) and ink application quantity (at most 7.5 g/m²) are coordinated within one system, reducing process complexity while maintaining high print quality.
Solution Approach 2:
By applying the primer as a preliminary action before printing, the patent eliminates the need for complex real-time parameter adjustments during printing. The primer pre-prepares the surface with controlled absorption characteristics, allowing the printing process to operate with simpler, more stable parameters. This preliminary preparation reduces the interdependence complexity between ink quantity, paper type, and environmental factors.
3Illumination intensity
If high quantities of printing ink are applied to achieve vibrant decorations, then colour intensity is improved, but loss of substance and production costs increase
Solution Approach 1:
The patent applies parameter changes by controlling the ink application quantity at at most 7.5 g/m², which is optimized to achieve sufficient color intensity without excessive consumption. The primer application parameter (4-6 g/m²) is also adjusted to create optimal surface conditions that improve ink transfer efficiency, allowing vibrant decorations with reduced ink usage compared to printing directly on unprimed paper.
Solution Approach 2:
The primer acts as an intermediary substance between the paper substrate and the printing ink. This intermediate layer with controlled application quantity (4-6 g/m²) improves ink adhesion and distribution, enabling vibrant color reproduction with lower ink consumption. The primer mediates the interaction between ink and paper, reducing ink waste from absorption into the bulk paper while maintaining surface color intensity.
4Manufacturing precision
If environmental factors such as humidity and temperature are controlled to maintain print consistency, then manufacturing precision is improved, but use of energy and operational complexity increase
Solution Approach 1:
The primer application serves as a preliminary action that pre-stabilizes the paper surface properties before printing. By controlling the primer quantity at 4-6 g/m², the paper surface achieves consistent absorption characteristics that reduce sensitivity to environmental variations during printing. This preliminary stabilization allows for better reproducibility across different batches and time intervals with reduced energy input for environmental control compared to direct printing on unprimed paper.
Data Source
AI summary
The invention relates to a method for producing decorative paper, in which a decorative design in printed onto a paper web. According to the method, a digital printing system is used, the paper web has a grammage of at least 45 g/m2 and at most 65 g/m2, a primer is applied to the paper web in a application amount of at least 4 g/m2 and at most 6 g/m2, preferably 5 g/m2, prior to the decorative design being printed on, and the decorative design is printed on with at most 7.5 g/m2 printing ink.