Textile Pretreatment Printing With Selective Fluid Application
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Solution Overview
Problem
Existing textile pretreatment and printing devices inefficiently use pretreatment fluid, leading to waste and environmental impact, as the fluid is applied uniformly over large areas, including non-printed regions, and lacks precise control over application.
Innovation Solution
A device and method that utilize a detection and programmable control system to apply pretreatment fluid only to specific areas of the textile where printing will occur, using a pretreatment device with adjustable nozzles and a dryer for solvent removal, enabling targeted application and efficient use of fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pretreatment fluid is applied uniformly over large areas, then the textile surface is adequately prepared for printing, but pretreatment fluid consumption increases and waste is generated
Solution Approach 1:
The patent applies pretreatment fluid only to specific regions of the textile where printing will occur, rather than uniformly across the entire surface. The system uses print data to identify exact print areas and directs the pretreatment device to apply fluid selectively to those regions, thereby reducing overall fluid consumption while maintaining adequate preparation where needed.
Solution Approach 2:
The pretreatment process is segmented into discrete controlled applications based on print area segmentation. The system divides the textile surface into print areas and non-print areas, and applies pretreatment fluid only to the segmented print regions. This segmentation enables precise control over fluid application and reduces waste.
2Quantity of substance
If pretreatment fluid is applied to entire textile surface, then all areas are prepared for ink binding, but non-printed regions are unnecessarily treated and wasted
Solution Approach 1:
The system performs preliminary analysis of print data before pretreatment application to identify exactly which areas will be printed. This preliminary action allows the system to pre-determine the precise boundaries of print areas and direct the pretreatment device to apply fluid only within those boundaries, avoiding unnecessary treatment of non-printed regions.
Solution Approach 2:
The system uses feedback from print data and real-time detection to control pretreatment fluid application. The control device receives information about where printing will occur and uses this feedback to adjust the pretreatment device's operation, ensuring fluid is applied only to areas that will actually receive ink, thereby eliminating waste on non-printed regions.
3Ease of operation
If manual or uniform pretreatment application is used, then the process is simple to operate, but precision and efficiency of fluid usage are reduced
Solution Approach 1:
The patent replaces manual or uniform mechanical pretreatment application with an automated system that uses digital print data to control fluid application. The programmable control device processes print data and automatically directs the pretreatment device to apply fluid with precise spatial accuracy, eliminating the need for manual operation while dramatically improving efficiency and reducing waste.
Solution Approach 2:
The system dynamically changes operational parameters of the pretreatment device based on print area characteristics. The control device adjusts fluid application parameters such as flow rate, application position, and treatment intensity according to the specific geometry and location of each print area, optimizing both efficiency and precision while maintaining ease of operation through automation.
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
Significantly reduces pretreatment fluid consumption by applying it only to necessary areas, minimizing waste and enhancing printing precision and speed, while ensuring effective ink binding to the textile.
Implementation Method 1
a detection device (30), by means of which the textile (20) can be detected
Implementation Method 2
a dryer (50), by means of which the applied pretreatment fluid can be dried
Data Source
Figure 1
AI summary
The invention relates to a device and a method for pretreating and printing textile surfaces. For this purpose, at least one pallet (22) for receiving and holding a textile to be printed, the textile being provided for printing on one printing side, a pretreatment device (40) by means of which the textile can be pretreated before printing, with a pretreatment fluid being applied to the textile applied in a pre-treatment area, a printing device (60) with at least one print head, by means of which the textile in the pre-treatment area can be printed with a printed image, a traversing device, by means of which the at least one pallet can be traversed relative to the pre-treatment device and the printing device, and a programmable one Control device (31) is provided, by means of which the printing device (60), the pretreatment device (40) and/or the traversing device can be controlled. A detection device (30) is provided in front of the pretreatment device (40), by means of which the textile can be identified and which is connected to the programmable control device, with the pretreatment area being able to be applied individually to a partial area of the printed side of the textile depending on the identified textile.