Security Element Transfer Material Weeding
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Solution Overview
Problem
Existing methods for producing security element transfer materials result in significant material loss during the weeding process, leading to increased costs and reduced efficiency in obtaining a larger quantity of transfer elements from the same amount of film.
Innovation Solution
The method involves providing a security element layered composite in the form of an endless band with incised outlines, using a separate, register-accurate lamination with gaps to facilitate precise removal of excess material, and cutting the band into individual transfer elements with only one element in the transverse direction, thereby minimizing material waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional weeding process is used to remove excess material from security element transfer material, then excess material is removed, but significant material loss occurs leading to increased costs
Solution Approach 1:
The patent extracts and removes only the necessary grid portions after security elements are applied, rather than removing large amounts of excess material. The grid is applied in full coverage and then selectively removed only where needed, minimizing material waste while achieving the same functional result.
Solution Approach 2:
The patent recovers and reuses the grid material after it has served its purpose of facilitating security element application. The grid can be removed and reused for subsequent applications, reducing overall material consumption and costs.
2Productivity
If more transfer elements are produced from the same amount of film, then production efficiency increases, but material loss during weeding increases
Solution Approach 1:
The patent extracts and removes only the necessary grid portions after security elements are applied, rather than removing large amounts of excess material. The grid is applied in full coverage and then selectively removed only where needed, minimizing material waste while achieving the same functional result.
Solution Approach 2:
The patent recovers and reuses the grid material after it has served its purpose of facilitating security element application. The grid can be removed and reused for subsequent applications, reducing overall material consumption and costs.
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 approach significantly reduces material loss during the weeding process, allowing for a larger quantity of transfer elements to be produced from the same amount of film, thereby lowering costs and enhancing production efficiency.
Implementation Method 1
a prior, register-accurate lamination of a separate film (71) onto the areas of the security element layer composite to be removed
Data Source
Figure 1~3
Figure 4a~4c
Figure 4d~6
AI summary
The invention relates to a method for producing a security element transfer material comprising a security element layer composite with security elements to be transferred, namely transfer elements, and a temporary carrier, comprising a) the step of providing a security element layer composite on the temporary carrier in the form of an endless strip (61) with a longitudinal direction along the strip and a transverse direction perpendicular thereto;b) the step of providing the security element layer composite with incised outline lines, such that a longitudinally repeating sequence of spaced-apart transfer element groups (64) is produced, and the transfer element groups are each formed by a plurality of transfer elements parallel and adjacent to one another in the transverse direction, and each of the individual transfer element groups (64) is surrounded by an upper and a lower incised outline line, each extending in the transverse direction, and two lateral incised outline lines extending in the longitudinal direction; c) the step of die-cutting (66), in which the excess material of the security element layer composite outside the transfer element groups is removed;d) the step of cutting the obtained endless strip into a number of endless strips corresponding to the majority (65) with transfer elements, in each of which there is only one transfer element in the transverse direction;