Laminating machine laminating film is divided into two categories according to different equipments and processes, one is "namely coating film", the other is "pre-coating film"; among them there are two kinds of light film and sub film.
Instant-coated film is a process of paper-plastic lamination using instant-coated laminating machine to immediately stick film with glue. It mainly consists of a coating film processing plant or a processing workshop, where the roll plastic film is coated with an adhesive as required, dried (slightly) compounded, and after pressure, the paper film is adhered together to form a coated product. That is, there are two types of film coating equipment: automatic and semi-automatic. The basic working principles are the same; the process flow mainly includes unwinding → sizing and coating → drying → compounding → slitting → finished product accumulation.
1. Unwind
2. Glue coating
A. Roller reversal type; B, concave type; C, no squeegee roll extrusion; D, direct type with scraper.
3. Dry
A, evaporation; B, heating; C, solvent removal.
4. Compound
A, hot pressing roller; B, rubber pressure roller; C, pressure adjustment.
5. Print input
6. Recover the accumulation