(1) Using instant film as the cover can protect the paper. After the film is coated, the service life of the cover (or the surface of the printed product) can be extended, especially for the students' textbooks, so the amount is increasing.
        (2) Imprints are not easily destroyed. After the machine film is coated with the instant coating film, it can increase the color effect and protect the color printed graphics without being worn. This is conducive to the publishing house editors to make various art designs on the cover or printed surface according to their needs, so it also promotes the increase in usage.
        (3) The production of coating film is beneficial. The production cost of the coating film in the coating is low, easy to start, and profitable, and the enterprise can benefit.

        The above three points make the instant coating film "hot", but the quality problems of the instant coating film and the impact on the binding quality are rarely paid attention to.