What are the technical requirements for printing grade TPU film?

Printing-grade TPU film, that is, thermoplastic polyurethane film, is widely used in the printing field because of its excellent physical properties and environmental protection characteristics. The technical requirements for printing grade TPU film mainly include the following aspects:

1. Surface characteristics: The surface of the TPU film needs to be flat and smooth without obvious flaws to ensure that the ink can be evenly distributed during printing without accumulation or omission.

2. Tensile strength: TPU film should have good tensile strength to adapt to various tension changes during the printing process and prevent the film from breaking during the stretching process.

3. Temperature resistance: The printing process may involve high-temperature environments, so the TPU film needs to have good temperature resistance to keep its physical properties unaffected.

4. Chemical stability: TPU film will come into contact with a variety of inks and solvents during the printing process, so it needs to have good chemical stability to prevent the performance of the film from deteriorating due to chemical reactions.

5. Translucency and haze: For printed matter that requires transparency, the transmittance and haze of the TPU film are also important technical parameters to ensure the visual effect of the printed matter.

6. Wear resistance: The printed TPU film may suffer friction during daily use, so wear resistance is also an important technical requirement.

7. Environmental protection: With the increasing awareness of environmental protection, the production and use of TPU films need to comply with environmental standards and not contain substances harmful to the human body or the environment.

8. Thickness consistency: The thickness of the TPU film needs to be consistent to ensure the quality and effect of the printed matter.

These technical requirements ensure the stability of the TPU film during the printing process and the quality of the final product. They are key factors that cannot be ignored in the production and application of printing-grade TPU films.