Transfer Lamination with Deactivated Edge Segments
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Solution Overview
Problem
Conventional transfer lamination processes face issues with edge-to-edge protection and edge flash, particularly when dealing with substrates that have features like magnetic stripes or holograms, as they require partial removal of the laminate and are limited by the thickness of the transfer layer to prevent tearing and defects.
Innovation Solution
A reverse-image transfer printing device method that uses a transfer ribbon with non-transfer portions heated to a deactivation temperature, allowing for selective bonding of the transfer layer to the substrate while leaving features uncoated, and a thicker protective layer for enhanced protection without edge flash.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a patch laminate is used to protect the card substrate surface, then abrasion protection is provided, but edge-to-edge protection cannot be achieved and portions must be removed to expose features
Solution Approach 1:
The transfer layer is divided into transfer portions and non-transfer portions, allowing selective bonding to different areas of the substrate. This segmentation enables the laminate to cover edge-to-edge while leaving specific features exposed through the non-transfer portions.
Solution Approach 2:
Different portions of the transfer layer have different bonding properties - transfer portions bond to the substrate while non-transfer portions remain unbonded. This local differentiation in bonding quality allows the laminate to provide protection in some areas while exposing features in others.
2Strength
If the transfer layer thickness is increased to provide thicker protection, then abrasion resistance improves, but edge flash and tearing defects increase
Solution Approach 1:
The transfer layer is segmented into transfer and non-transfer portions along the edges. This segmentation allows the use of thicker transfer layers for improved protection while the non-transfer portions prevent edge flash by providing a controlled release mechanism at the edges.
Solution Approach 2:
The non-transfer portions are prepared in advance on the transfer layer before bonding. This preliminary action creates predetermined areas that will not bond to the substrate, preventing edge flash and tearing when thicker transfer layers are used.
3Area of stationary object
If the entire transfer layer is bonded to the substrate, then full coverage protection is achieved, but features like magnetic stripes and holograms become covered and must be exposed by removing portions
Solution Approach 1:
The transfer layer is segmented into transfer portions for bonding and non-transfer portions for feature exposure. This segmentation achieves full coverage protection while automatically exposing features through the non-transfer portions, eliminating the need for post-bonding removal operations.
Solution Approach 2:
The non-transfer portions are predetermined and prepared on the transfer layer before bonding occurs. This preliminary action ensures that features are automatically exposed during the bonding process itself, rather than requiring separate removal steps after bonding.
4Area of stationary object
If a continuous transfer layer is used, then full surface coverage is achieved, but selective exposure of features requires additional processing steps
Solution Approach 1:
The continuous transfer layer is segmented into transfer and non-transfer portions, allowing full surface coverage while automatically exposing features. This eliminates the need for additional processing steps to remove portions of the laminate after bonding.
Solution Approach 2:
The non-transfer portions are predetermined and prepared on the transfer layer before bonding. This preliminary action integrates the feature exposure function into the bonding process itself, reducing overall device complexity by eliminating separate removal operations.
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 provides full edge-to-edge protection while avoiding coverage of specific substrate features and reduces the likelihood of edge flash, enabling the use of thicker, more durable transfer layers for improved abrasion resistance and environmental protection.
Implementation Method 1
non-transfer portions of the transfer section are heated to a deactivation temperature using the print head
Implementation Method 2
The heated roller is used to heat the patch to activate the adhesive and press the patch to the surface of the substrate to bond the patch onto the surface
Implementation Method 3
The side of the resin material that is not attached to the continuous carrier layer is generally coated with a thermal adhesive which is used to create a bond between the resin and the surface of the substrate
Implementation Method 4
The carrier layer or backing is removed to complete the lamination process
Implementation Method 5
Some transfer films include a protective layer that is configured to provide an additional level of protection to the surface and image. In general, the protective layer increases abrasion resistance, but can also provide protection from other environmental conditions, such as moisture, ultraviolet light, etc.
Data Source
AI summary
A method of laminating a transfer section of a transfer layer to a substrate is performed using a reverse-image transfer printing device. The device includes a transfer ribbon, a print ribbon, a print head, and a laminating device. The transfer ribbon comprises the transfer layer, which is attached to a carrier layer. The print head is configured to transfer print material from the print ribbon to the transfer layer. Non- transfer portions of the transfer section are heated to a deactivation temperature using the print head. The transfer section is laminated to the substrate by heating the non- transfer portions and transfer portions of the transfer section using the laminating device. This bonds the transfer portions the substrate. The carrier layer is the removed from the transfer portions leaving the transfer portions bonded to the substrate. The non- transfer portions remain attached to the carrier layer.