Transfer Film Intermediate Layer Wax Rubber Peeling Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Transfer failures such as tailing and burr occur due to non-uniform peeling force of the protective layer from the transfer film, caused by interactions between components in the resin and melamine resin in the release layer, leading to insufficient durability and peeling stability of the transfer object surface.
Innovation Solution
A transfer film structure comprising a substrate, a release layer, an intermediate layer with a wax and rubber component, and a protective layer with an active light curing resin, where the intermediate layer includes styrene-butadiene rubber and polyethylene or carnauba wax, and the protective layer has an unsaturated group-containing acrylic copolymer, ensuring uniform peeling force and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the adhesion force of the transfer layer and substrate is minimized to improve transfer efficiency, then the transfer layer can be easily peeled from the substrate, but the adhesion force becomes too weak causing transfer failures such as tailing and burr
Solution Approach 1:
A release layer comprising a melamine resin is introduced as an intermediary between the transfer layer and substrate. This release layer mediates the adhesion relationship, providing controlled peeling properties that enable both efficient transfer and reliable adhesion without causing transfer failures
2Strength
If an active light curing resin is used in the protective layer to increase surface hardness, then the surface strength is improved, but the adhesion force of transfer layer and substrate is excessively decreased and/or surface strength is reduced due to interaction with melamine resin
Solution Approach 1:
The chemical composition parameters of the protective layer resin are specifically selected and adjusted to ensure compatibility with the melamine resin in the release layer. By changing the resin composition parameters, the patent achieves both high surface strength from light curing and stable adhesion without excessive interaction
Solution Approach 2:
The protective layer uses a composite resin system that combines active light curing components with compatible additives and modifiers. This composite material approach allows the protective layer to achieve high surface hardness while maintaining compatibility with the melamine resin release layer, preventing adhesion deterioration
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
The proposed transfer film structure prevents transfer failures like tailing and burr, providing sufficient durability and high peeling stability to the transfer object surface without causing transfer failures, while maintaining surface strength and adhesion properties.
Implementation Method 1
the protective layer is formed by using an active light curing resin that is cured by ultraviolet light or the like
Data Source
AI summary
An object is to provide a transfer film that can impart sufficient durability performance to a transfer object surface and can also have excellent peeling stability without causing any transfer failures such as tailing and burr. A transfer film including at least a substrate, a release layer provided on the substrate, an intermediate layer provided on the release layer, and a protective layer provided on the intermediate layer, in which the intermediate layer includes a wax component and a rubber component, and the protective layer includes an active light curing resin.