Linerless Mailing and Return Label Structure for Clean Peeling

The patent removes the release liner component entirely from the label structure. Instead of using a release liner that requires peeling, the invention uses a self-adhesive thermal paper label where the adhesive is directly applied to the paper surface. This extraction of the release liner eliminates the complex multi-layer structure while maintaining the label's functionality through direct adhesive application and controlled tearing at perforation lines.

The patent combines the mailing label and return label into a single integrated structure without requiring separate release liners for each. The self-adhesive thermal paper allows both labels to be applied directly to their respective surfaces. The perforation line enables clean separation of the two labels after application, merging the functionality of what previously required separate components and release liners.

The patent removes the release liner component entirely from the label structure. Instead of using a release liner that requires peeling, the invention uses a self-adhesive thermal paper label where the adhesive is directly applied to the paper surface. This extraction of the release liner eliminates the complex multi-layer structure while maintaining the label's functionality through direct adhesive application and controlled tearing at perforation lines.

The patent employs a disposable self-adhesive thermal paper label that eliminates the need for expensive release liners. The label is designed for single-use application where the entire label or portions of it are torn off at perforation lines after use. This approach replaces costly reusable release liners with inexpensive single-use labels, reducing manufacturing costs while maintaining functionality.

The patent divides the label into multiple segments separated by perforation lines. The self-adhesive thermal paper is cut with perforation lines that allow easy tearing at specific points. This segmentation enables the label to be separated into distinct portions (mailing label and return label) after application, or before application if needed. The perforation lines provide controlled weak points that facilitate easy separation without requiring complex multi-layer adhesive structures.

The patent applies different properties to different parts of the label. The adhesive layer has varying characteristics in different regions, and the perforation lines create local weak points for easy tearing. The thermal paper portions have different adhesive applications and tear resistance properties. This local differentiation allows the single adhesive layer structure to achieve both easy manufacturing and easy separation/application operations by optimizing specific regions for specific functions.