Data Carrier Security Feature Ink Migration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional data carriers for passport books are not sufficiently secure against the exchange of the data page, making them vulnerable to forgery and tampering, as existing security features are difficult to detect or prove.
Innovation Solution
A data carrier comprising a data page made from a first plastic material and a connecting element made from a second plastic material, where the fabric is printed with an ink preparation that migrates into the data page during connection, forming a secure integral feature that is difficult to replicate, thus enhancing security against forgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional data carriers are used with separate data pages and connecting elements, then ease of manufacture is improved, but security against forgery deteriorates
Solution Approach 1:
The patent merges the data page and connecting element into a single integrated component. The connecting element is embedded within the data page structure, creating an inseparable unit that cannot be detached or replaced without destroying the overall structure. This integration ensures that any attempt to forge or replace the data page would necessarily involve replicating the connecting element as well, significantly increasing security against forgery while maintaining manufacturing feasibility through one-piece construction methods.
2Reliability
If security features are added to data carriers, then security against forgery is improved, but device complexity deteriorates
Solution Approach 1:
The patent segments the security feature into two distinct parts: the connecting element that physically integrates with the data page, and the security print that is applied to the connecting element. This segmentation allows the security function to be added as a separate layer or step without fundamentally redesigning the entire data carrier structure. The connecting element provides structural security, while the security print provides visual authentication, dividing the security function into manageable components that reduce overall device complexity.
3Reliability
If the data page is made from plastic material, then improved security is achieved, but the ability to turn like paper deteriorates
Solution Approach 1:
The patent modifies the physical parameters of the plastic material used for the data page. Specifically, it uses a plastic material with a thickness of 0.2 to 0.4 mm, which is thin enough to allow flexible bending and turning similar to paper, yet thick enough to maintain structural integrity and security features. The plastic material is also designed with appropriate flexibility and durability characteristics, enabling it to be folded along the connecting element while maintaining its security properties and resistance to forgery.
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
The integrated security feature significantly increases the difficulty of exchanging the data page by ensuring that any attempt to recreate the printing must match both the surface and volume, making it almost impossible to produce an exact match, thereby enhancing counterfeit security and allowing for verification of authenticity.
Implementation Method 1
the at least one printed ink preparation migrates at least partially from the fabric into the first plastic material of the data side adjacent to the fibers during the bonding process
Implementation Method 2
the first plastic material of the data side completely penetrates the mesh of the fabric at least in sections during the bonding process and completely encloses the fibers of the fabric at least in sections
Data Source
Figure 1a~1b
Figure 2a
Figure 2b
AI summary
The invention relates to a method for producing a security feature (2) in a data carrier (1), comprising the following steps: providing a data page (7) with a layer of a first plastic material (13); providing a connecting element (8), wherein the connecting element (8) comprises a fabric (10) made of a second plastic material (19); positioning the connecting element (8) in a printing position; receiving image data; controlling a printhead for selectively printing the fabric (10) with at least one ink preparation (16) depending on the received image data;Connecting the printed connecting element (8) and the data side (7), wherein the first plastic material (13) of the data side (7) penetrates the mesh of the fabric (10) at least partially during the joining process and thereby completely encloses the fibers (12) of the fabric (10) at least partially, so that the at least one printed ink preparation (16) migrates at least partially from the fabric (10) into the first plastic material (13) of the data side (7) adjacent to the fibers (12) during the joining process. The invention further relates to such a data carrier.