Image-Carrying Laminate Surface Treatment for Delamination Resistance
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Solution Overview
Problem
Laminated glass with an image-carrying layer experiences interlayer delamination due to insufficient adhesiveness between the image-carrying layer and the interlayer film, leading to issues during lamination processing and over time, which affects the clarity and resolution of the image.
Innovation Solution
An image-carrying laminate is designed with a first resin sheet stacked on one surface of an image-carrying layer, where the opposite surface of the image-carrying layer is treated to enhance hydrophilicity, and optionally a second resin sheet is laminated on the other side, using surface treatments like UV ozone treatment, and the image-carrying layer is formed from a cured product of a curable ink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an image-carrying layer printed with ultraviolet ray-curable ink is stacked on a thermoplastic hard interlayer film, then the design and decorative function is improved, but the interlayer adhesiveness deteriorates causing delamination
Solution Approach 1:
The invention changes the chemical composition parameters of the curable ink by specifying functional groups (carboxyl, hydroxyl, or amine groups) that can form strong chemical bonds with the thermoplastic interlayer film, thereby improving interlayer adhesiveness while maintaining the image-carrying function
Solution Approach 2:
The invention creates a composite structure where the image-carrying layer combines printing pigments with curable resin components containing specific functional groups, forming a multi-functional material that achieves both decorative and adhesive properties simultaneously
2Manufacturing precision
If the image-carrying layer is made from curable ink, then the image clarity and resolution is improved, but the interlayer adhesiveness deteriorates
Solution Approach 1:
The invention modifies the chemical parameters of the curable ink by incorporating specific functional groups (carboxyl, hydroxyl, or amine groups) that enhance chemical bonding capability with the interlayer film, resolving the contradiction between image quality and adhesion
3Manufacturing precision
If the image-carrying layer is printed and cured, then the image resolution is improved, but the interlayer delamination occurs over time
Solution Approach 1:
The invention changes the chemical composition of the cured ink to include functional groups that form durable chemical bonds with the interlayer film, ensuring long-term stability and preventing delamination that occurs with conventional inks
Solution Approach 2:
The invention incorporates adhesion-promoting functional groups into the ink formulation before printing and curing, so that the bonding capability is built into the material itself rather than being added as a separate post-processing step
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 solution prevents interlayer delamination, maintaining the clarity and resolution of the image, ensuring the laminate's integrity during processing and long-term use.
Implementation Method 1
an image-carrying layer formed of a cured product of a curable ink
Implementation Method 2
the second surface of the image-carrying layer having been subjected to surface treatment by a surface treatment process
Data Source
Figure 1~3
Figure 4~5
AI summary
Provided are: an image-carrying laminate not suffering interlayer delamination upon lamination processing or when used over time, and favorably maintaining the clarity and resolution of an image, a method for producing the same, an interlayer film for laminated glass, and laminated glass. A laminate for carrying an image is an image-carrying laminate 1A including: a first resin sheet 10; and an image-carrying layer 20 formed of a cured product of a curable ink; in which the image-carrying layer 20 has a first surface 20A and a second surface 20B opposite from the first surface, the first resin sheet 10 is stacked on the first surface 20A side, and the second surface 20B has been subjected to surface treatment by a surface treatment process.