Operating principle of laminating mulch applicator
(1) Paper can be protected by using instant film as mulch applicator cover. After coating, the service life of the cover (or printed surface) can be extended, especially for students' textbooks, so the amount is increasing.
(2) The impression is not easy to be damaged. After coating, it can increase the color effect and protect the pictures and texts of color printing without being worn. This is conducive to the publishing house's art editors to make various art designs on the surface of the cover or print according to their needs, so it also promotes the increase of consumption.
(3) That is, the production of coating film is very profitable. The cost of film coating is low, easy to start and make money, and the enterprise can benefit.
The above three points make the film "hot", but few people pay attention to the quality problems of the film and its impact on the binding quality. This will be further analyzed below.
The main problems of the cover and page after coating are as follows:
Surface blistering, wrinkling, uneven bending, falling off and separation, difficult storage, etc. These quality problems have not been solved for many years, and there are many reasons, such as:
1. Impact of different types of paper.
2. The influence of different ink colors.
3. Different impacts of climate.
4. Impact of environment and conditions.
5. The lack of scientific management of mulch applicator enterprises.
6. Influence of personnel quality.
