Inkjet printing apparatus and control method thereof
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Inkjet printing on fabrics and clothing faces issues with insufficient bonding force between ink and fabric, leading to print quality deterioration, and existing pre-treatment methods result in chemical waste and environmental concerns.
Innovation Solution
An inkjet printing apparatus that uses dual inkjetting to create a chemical bond between base ink and activator ink directly on the fabric or clothing without pre-treatment, employing a system with separate inkjet heads for base and activator inks, and air flow management to prevent mist interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If pre-treatment chemicals are applied to the entire surface of fabric or clothing, then bonding force between ink and fabric is improved, but chemical waste increases and environmental problems occur
Solution Approach 1:
The patent applies pre-treatment chemicals only to the specific print area where ink will be jetted, rather than treating the entire fabric surface. This localized application maintains sufficient bonding force in the print area while reducing chemical waste and environmental impact.
Solution Approach 2:
The patent divides the fabric surface into print areas and non-print areas, applying pre-treatment chemicals only to the print areas. This segmentation allows selective treatment where needed, improving bonding force locally without wasting chemicals on areas where printing will not occur.
2Loss of substance
If ink is jetted directly onto fabric or clothing without pre-treatment, then chemical waste is reduced, but bonding force between ink and fabric becomes insufficient
Solution Approach 1:
The patent applies pre-treatment chemicals to the print area before jetting ink onto the fabric. This preliminary action prepares the fabric surface in the print area to enhance bonding force, ensuring proper ink adhesion while avoiding unnecessary chemical application to non-print areas.
3Strength
If pre-treatment chemicals are applied to increase bonding force, then ink adhesion is improved, but the process complexity and time increase
Solution Approach 1:
The patent implements pre-treatment only in the print areas rather than the entire fabric surface, simplifying the overall process by eliminating unnecessary treatment steps in non-print areas while maintaining ink adhesion where needed.
Solution Approach 2:
The patent applies pre-treatment chemicals partially, only to the extent needed in the print areas, rather than excessively treating the entire fabric surface. This partial action achieves sufficient ink adhesion with reduced process complexity and time.
4Manufacturing precision
If pre-treatment is performed to ensure ink bonding, then print quality is improved, but production time increases
Solution Approach 1:
The patent performs pre-treatment only in the print areas where quality is needed, rather than treating the entire fabric surface. This localized approach maintains print quality in the printed regions while reducing overall production time by eliminating unnecessary treatment of non-print areas.
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 enhances print quality by ensuring strong adhesion of ink to fabric without pre-treatment, reduces chemical waste, and improves operational efficiency by preventing unintended chemical bonds and nozzle clogging.
Implementation Method 1
jetting the base ink and the activator ink directly onto the surface of clothing or fabric without a separate pre-treatment, wherein an image is printed through a chemical bond between the base ink and the activator ink
Implementation Method 2
jetting the base ink and the activator ink directly onto the surface of clothing or fabric without a separate pre-treatment, wherein an image is printed through a chemical bond between the base ink and the activator ink
Data Source
AI summary
This application relates to an inkjet printing apparatus. In one aspect, the apparatus includes a main frame and a flat-bed moving in a first direction with respect to the main frame. The apparatus may also include a first printing device located on a movement path of the flat-bed and comprising a first inkjet head for jetting base ink onto a print area of the print medium. The apparatus may further include a second printing device located on the movement path of the flat-bed and comprising a second inkjet head for jetting activator ink onto the print area of the print medium onto which the base ink is jetted. The apparatus may further include at least one processor electrically connected to the flat-bed, the first printing device, and the second printing device and configured to control operations of the flat-bed, the first printing device, and the second printing device.