Book-like Document Spine Formation Using Aligned Tabs
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Solution Overview
Problem
Existing book-like documents, such as valuable or security documents, face challenges in cost-effective production and improving unlocking behavior, particularly in forming the book spine without the need for cutting or additional adhesives.
Innovation Solution
A book-like document design where the front and back covers and data pages are aligned with tabs that form a cohesive connection zone, allowing for a monolithic spine formation without sewing or cutting, using tabs made from meltable or non-meltable materials with thermoplastic coatings or hybrid fibers for enhanced tear-out strength and security features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional sewing or adhesive methods are used to form the book spine, then the book-like document can be assembled, but the production process becomes complex and costly
Solution Approach 1:
The book components (front cover, back cover, data pages) are each provided with separate flaps that are aligned and connected to form the spine. This segmentation allows each component to be prepared independently and then assembled together, simplifying the overall production process while maintaining structural integrity.
Solution Approach 2:
The flaps from multiple components are merged together through connection to form a unified spine structure. This combining approach eliminates the need for separate sewing or adhesive application steps, as the flaps themselves become the connecting element, reducing both process complexity and cost.
2Strength
If flaps are made from non-meltable materials, then tear resistance is improved, but the ability to form a monolithic connection zone is reduced
Solution Approach 1:
The flaps are made from composite materials that combine meltable and non-meltable components. This allows the flaps to maintain high tear resistance from the non-meltable portions while enabling monolithic connection zone formation through the meltable portions that can be thermally bonded to adjacent flaps, thus resolving the contradiction between strength and connection 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
This method simplifies the production process, enhances the unlocking behavior by creating a hinge area, and integrates security elements like transponder modules, while eliminating the need for adhesives and reducing production complexity.
Implementation Method 1
the flap is made of a meltable, in particular thermoplastic, material or of a non-meltable material with at least one meltable, in particular thermoplastic, coating, covering, or components
Implementation Method 2
joining the flaps in a material-bonded manner
Data Source
Figure 1~4
AI summary
The invention relates to a book-like document, in particular a value or security document, with a front book cover page (14) and a back book cover page (16), with a plurality of data pages (17) provided between the front book cover page (14) and the back book cover page (16), wherein the front book cover page (14), the data pages (17), and the back book cover page (16) are aligned with a book spine (23) and are connected to one another, wherein the front book cover page (14), the back book cover page (16), and the data pages (17) each have a tab (21) and the tabs (21) of the front book cover page (14), the back book cover page (16), and the data pages (17) are arranged on top of one another and aligned with one another, and the tabs (21) are connected to one another by an integral connection, and a connecting zone (25) forming the book spine (23) is provided at least in sections, as well as a method for producing the same.