Thermal Transfer Sheet for Hologram Protection
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Solution Overview
Problem
Conventional methods for producing protected hologram cards require separate steps for forming the hologram and protective layer, making mass production inefficient.
Innovation Solution
A thermal transfer sheet with a transparent transfer layer comprising a laminate of an intermediate transfer medium and a hologram transfer layer, where the hologram transfer layer is stacked onto the intermediate transfer medium using a thermal transfer method, self-adhesive, or pressure-sensitive adhesive, allowing for efficient integration of a protective layer with the hologram.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate steps are used for forming hologram and protective layer, then each step can be optimized independently, but production efficiency decreases and manufacturing complexity increases
Solution Approach 1:
The patent combines the hologram layer and protective layer into a single integrated thermal transfer sheet structure, where the protective layer is formed as part of the transfer medium itself rather than as a separate subsequent step. This merging enables simultaneous formation of both the hologram and protective layer during one thermal transfer process, dramatically improving mass production efficiency while maintaining the security functions of both components.
Solution Approach 2:
The thermal transfer sheet is designed as a multi-functional component that simultaneously provides hologram formation, protective layer formation, and adhesive bonding capabilities. The transfer medium incorporates both the hologram layer and protective layer, allowing a single device and process to accomplish what previously required multiple specialized steps, thereby increasing productivity without compromising the reliability of the protection function.
2Manufacturing precision
If separate steps are used for forming hologram and protective layer, then quality control can be performed at each step, but production time increases and process complexity increases
Solution Approach 1:
The patent merges the hologram formation and protective layer formation into a single thermal transfer process, reducing the number of production steps from multiple sequential operations to one integrated process. This consolidation simplifies the overall manufacturing process while maintaining quality control through standardized thermal transfer parameters that ensure consistent formation of both the hologram and protective layer in a single operation.
Solution Approach 2:
The protective layer is pre-formed as part of the transfer medium before the thermal transfer process, rather than being applied afterward. This preliminary action allows the protective layer to be already in position and ready for the hologram formation, eliminating the need for subsequent protective layer application steps and simplifying the overall production process while maintaining manufacturing precision.
3Reliability
If conventional separate steps are used, then each layer can be optimized for its specific function, but overall production cost increases
Solution Approach 1:
The patent combines multiple functions into a single thermal transfer sheet, where the protective layer and hologram layer are formed as integrated components. This merging eliminates the need for separate production lines and reduces material waste from multiple processing steps, thereby lowering overall mass production costs while maintaining the protective function through the integrated layer structure.
Solution Approach 2:
The thermal transfer sheet serves multiple functions simultaneously - providing both protective layer and hologram formation in a single process. This multi-functionality reduces the total number of operations required, decreases labor and equipment costs, and improves overall ease of manufacture while ensuring the protective layer maintains its security function through the unified design.
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
Enables high-efficiency production of protected hologram cards, preventing forgery and alteration, while reducing production costs and improving the efficiency of the hologram transfer process.
Implementation Method 1
said transparent transfer layer is formed by stacking said hologram transfer layer onto the intermediate transfer medium by a thermal transfer method
Implementation Method 2
said hologram transfer layer is stacked onto the intermediate transfer medium through a self-adhesive layer
Implementation Method 3
said hologram transfer layer is stacked onto the intermediate transfer medium through a pressure-sensitive adhesive layer
Data Source
AI summary
This invention provides a hologram thermal transfer sheet that can realize thermal transfer treatment with high efficiency. The thermal transfer sheet comprises a base material sheet and a transparent transfer layer provided separably on the base material sheet, characterized in that a hologram layer is provided on at least a part of the transparent transfer layer. There are also provided a process for producing the thermal transfer sheet and an image formed material produced by the transfer of this thermal transfer sheet.