Continuous Lamination of Security Data Pages with Fiber Overhang
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Solution Overview
Problem
Current methods for producing data pages for security and valuable documents are not cost-effective and do not ensure a robust product.
Innovation Solution
A method involving rolled goods for the first and second layers, with a fiber layer forming an overhang, where an organic binder is applied to the first layer, and the second layer is applied congruently to the fiber layer, allowing for continuous feeding and increased productivity, and a pre-fixing process to secure the layers before lamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If individual sheets are stacked and laminated to produce data pages, then the data page structure is formed, but the production cost increases and productivity decreases
Solution Approach 1:
The patent implements continuous feeding of layers from rolls through a laminating unit, replacing the discontinuous process of stacking individual sheets. The first layer, fiber layer, and second layer are fed continuously from rolls (21, 25, 27) through the laminating unit (33), enabling uninterrupted production and significantly increasing productivity while reducing manual handling and production costs
Solution Approach 2:
The patent applies binder to the first layer before lamination and uses pre-fixing mechanisms (thermal or ultrasonic) to temporarily secure layers in position before final lamination. This preliminary preparation ensures proper layer alignment and bonding readiness, streamlining the overall manufacturing process and reducing production time
2Productivity
If layers are fed continuously from rolls, then productivity increases, but precise alignment and bonding of layers become more difficult
Solution Approach 1:
The patent replaces manual alignment mechanisms with automated guiding systems that use sensors and control systems to monitor and adjust layer positions during continuous feeding. This substitution of mechanical alignment methods with automated control systems enables precise layer alignment to be maintained throughout the continuous production process
Solution Approach 2:
The laminating unit incorporates feedback mechanisms that continuously monitor the position and alignment of layers during feeding from rolls. Real-time feedback allows the system to detect and correct alignment deviations, ensuring precise layer positioning is maintained throughout the continuous production process without compromising productivity
3Adaptability or versatility
If an overhang is formed by the fiber layer, then the data page can be sewn into security documents, but the lamination process becomes more complex
Solution Approach 1:
The patent applies binder selectively to specific areas of the first layer where bonding is required, rather than uniformly across the entire surface. The fiber layer is positioned to extend beyond the first and second layers only in the specific region where the overhang is needed for sewing, concentrating the functional property where required while simplifying the lamination process in other 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 enables the production of a robust and cost-effective data page with enhanced productivity through continuous layer feeding and secure bonding, ensuring a stable composite structure.
Implementation Method 1
an organic binder is applied at least in sections to an upper side of the first layer... the first and second layer and/or the fiber layer extending between them are connected to one another by the binder and thus form a stable composite
Implementation Method 2
the first layer is provided as rolled goods and pulled off... the fiber layer is provided as rolled goods... the second layer is also provided as rolled goods and applied to the fiber layer
Data Source
Figure 1~2
AI summary
The invention relates to a method for producing a data page, and to a data page (11) for embedding in a preferably book-like security and/or value document, comprising at least two layers (12, 14) arranged one on top of the other, made of an organic polymer material, and at least one fiber layer (16) arranged in a partial region between the layers (12, 14) and outside the layers (12, 14) forming an overlap. The first layer (12) is provided as roll material and is pulled off a roll (21), an organic binder is at least partially applied to an upper side of the first layer (12), a fiber layer (16) is provided as roll material and is pulled off a roll (25), and the fiber layer (16) is applied to the first layer (12) along a lateral edge (17) of the first layer (12) forming an overlap (19). The second layer (14) is provided as roll material and is pulled off a roll (27), and the second layer (14) is applied to the fiber layer (16), wherein the second layer (14) covers the first layer (12), at least in partial areas.