Textile-Flap Data Page Embossing for Tamper-Evident Bonding
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Solution Overview
Problem
Existing methods for producing data pages in book-like documents fail to securely attach textile tabs to data carriers, making it easy to detach the tabs and potentially leading to counterfeiting and manipulation.
Innovation Solution
An ultrasonic device with projections and an embossing element is used to melt and embed the data carrier's outer layer into the textile tab, creating a predetermined breaking point that increases the security of the attachment by making detachment visually evident and difficult, while also forming a secure connection point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tab is connected to the data carrier using conventional ultrasonic welding, then the tab is securely attached to the data carrier, but manipulation by detaching the tab becomes possible without visible detection
Solution Approach 1:
The patent combines welding and embossing functions into a single ultrasonic device. The sonotrode includes both welding projections for securing the tab and embossing elements for creating security features, eliminating the need for separate processing steps and devices.
Solution Approach 2:
The ultrasonic device is designed with multi-functionality, serving both to weld the tab to the data carrier and to emboss security features simultaneously. This universal approach enhances security while maintaining operational efficiency.
2Reliability
If embossing elements are introduced into the overlapping area, then manipulation becomes visually detectable, but the processing complexity increases
Solution Approach 1:
The patent combines welding and embossing functions into a single ultrasonic device. The sonotrode includes both welding projections for securing the tab and embossing elements for creating security features, eliminating the need for separate processing steps and devices.
Solution Approach 2:
The embossing elements create predetermined breaking points and security features during the initial welding process, before any manipulation can occur. This preliminary action ensures that any subsequent tampering is immediately detectable through visible signs.
3Strength
If the outer layer of the data carrier is melted to connect the tab, then a secure connection is formed, but the material flows into textile openings reducing structural integrity
Solution Approach 1:
The patent applies local quality by using projections with specific contact surfaces that melt and flow into textile openings at targeted locations to create strong connection points, while embossing elements create predetermined breaking points at different locations. This localized differentiation ensures strong attachment where needed while maintaining overall structural integrity.
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 method enhances the security of the data page by creating a visible and secure breaking point during manipulation attempts, ensuring the tab remains attached to the data carrier, thus preventing unauthorized detachment and increasing the document's authenticity.
Implementation Method 1
with a sonotrode of the ultrasonic device, which has a large number of projections with a contact surface the tab is worked into the overlapping area and the data carrier is supported by the anvil of the ultrasonic device, at least one outer layer of the data carrier being melted
Implementation Method 2
a data carrier and a flap made of a textile material are connected to one another by welding in an overlapping area
Data Source
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AI summary
The invention relates to a method and a data page for a book-like document, as well as a data page (17) and an ultrasonic device for joining a flap (23) made of a textile material and a data carrier (20) to form a data page (17), wherein at least one embossing element (61) with an embossing surface (62) is brought onto the textile material of the flap (23) within the overlap area (30) and at least one embossing (66) is applied.the cross-section of the textile material of the tab (23) is reduced by the size and/or position of the at least one embossing surface (62) of the at least one embossing element (61), or the textile material is notched by an embossing edge (65) of the embossing surface (62) of the at least one embossing element (61), or the cross-section of the textile material is reduced and notched by the size and/or position of the embossing surface (62) of the at least one embossing element (61) and the embossing edge (63) of the embossing surface (62) of the at least one embossing element (61).