Current methods for printing decorative patterns onto products using thermal transfer films are complex, costly, and harmful to both workers and the environment. They require manual plate-making and printing steps using hazardous chemicals. Workers are exposed to these substances, and the process involves many steps that reduce efficiency and increase costs.
Core Features
This invention introduces a simplified and safer method to create thermal transfer films. It replaces traditional printing with a digital printing process to apply patterns onto release paper. Then, only the printed pattern areas are coated with adhesive—without touching the paper itself—thanks to the raised surface of the patterns. Finally, the adhesive is cured in a baking oven, and the film is rolled and stored for later use.
Inventive Step (What’s New)
Unlike traditional methods that require detailed templates and manual alignment to apply glue only on patterns (and not the paper), this approach uses the thickness of the digitally printed pattern to automatically limit glue application. The raised pattern touches the glue roller; the flat paper does not. This innovation eliminates the need for templates and manual glue placement, streamlining the process.
Benefits
- No plate-making required: Reduces labor and material costs.
- Improved safety: Workers avoid direct exposure to toxic chemicals.
- Environmentally friendlier: Fewer chemical emissions.
- Faster production: Fewer steps and automated handling increase efficiency.
- Better quality control: Digital printing offers precision and consistency.
Broader Impact
This invention modernizes a widely used industrial process, making it cleaner, safer, and more cost-effective. It benefits manufacturers by reducing operational costs and liability, helps protect workers’ health, and supports environmental sustainability by cutting down on chemical waste.