(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.

        1. The glue part. The gluing part is equipped with an adjusting device to adjust the amount of gluing to meet the requirements of different printed parts. The gluing roller adopts rubber roller or steel roller.
        2. Drying part. The drying tunnel is generally 2 ~ 3m long. The drying tunnel entrance of the laminating machine is provided with an infrared lamp tube and an electric fan. The upper part of the drying tunnel of the automatic laminating machine also has a high-power electric heating tube and an exhaust fan, and the temperature can be adjusted to dry the adhesive and eliminate the exhaust gas.
        3. Hot pressing part. This part is the key to the fully automatic laminating machine, which is directly related to the adhesion fastness of the laminating products. The principle of hot pressing is that the adhesive can quickly infiltrate and penetrate into the surface layer of the printed matter in the molten state, so as to obtain a strong bonding interface layer. The hot pressing part is composed of a group of rollers. One of the hollow metal rollers is equipped with an electric heating tube, and the temperature can be controlled automatically. The pressure of this group of rollers can be adjusted.

        The laminating machine has very high requirements for accuracy at work, especially the surface accuracy and shopping degree of each roller. Once the slightest streaks, cracks, scratches, obscuration, or a slight roundabout deformation. All will affect the processing quality of the product, even not working properly. So it is very important to protect the machine carefully and carefully.
        Protection and maintenance of laminating machine
        1. Regularly check the oil pipes, valves and cylinder plugs of the hydraulic system for oil leakage. When oil leakage is found, replace the sealing ring in time, and fill the hydraulic cylinder with an appropriate amount of hydraulic oil in time.
        2. Always check whether the rubber roller is stuck with rubber skin or grease, and wipe the rubber traces and dust on the roller in time. Keep the two rolled surfaces clean and dark. The surface of each roller must be kept seriously clean. Always clean the machine immediately after applying the machine. Wash with glue thinner (alcohol or xylene) and wipe each roller with a soft towel. It is strictly forbidden to scrape the surface of the roller with a sharp tool. Every time the machine is turned on, the dust on the surface of each roller should be wiped off. And check whether the surface of each roller of the machine is dark, the machine is malfunctioning or abnormal sound, should analyze and find the reason in time and remove it. After the standby device is normal, you can continue to use the machine.
        3. The grounding of the machine and the insulation of electrical appliances should be ensured.
        4. The blade line of the scraping blade should be kept flat and flexible. When there are detours, teeth, curling, etc., it should be repaired and replaced in time. Use 0.15 ~ 0.20 mm manganese steel skin or the blade of the offset press, according to the original specifications Replace the size.
        5. Regularly add lubricating oil to the transmission parts and sliding surfaces of the machine to ensure that the machine is in a good lubrication state. In particular, due to the high pressure and high temperature encountered by the large bearing of the pressure roller, the lubricating oil is volatilized and lost. The dwarf high-temperature lubricating oil should be timely so that it can normally perform its duties under high temperature and high pressure.
        6. A comprehensive inspection of the machine should be carried out once a year to find the problem and solve it in time to avoid more serious damage to the machine.

        With the increasing use and demand for plastic films of various products, various plastic film machinery and equipment were also in operation at this time, not only the laminating machine, but also the laminating machine, etc. It is more beautiful in appearance, and also has the characteristics of waterproof and antifouling. The laminating machine can make the surface of the printed product after lamination appear brighter and smoother. Extend the service life and time of the printed matter, make the color of the printed graphics appear more vivid, full of three-dimensional sense, the functional characteristics of the laminating machine are:
        1. The laminating machine can work without stopping during work, which ensures continuous production and improves working time and efficiency.
        2. The laminating machine mainly adopts the large-diameter pressing roller to ensure that the surface of the product is smooth and bright.
        3. The motor of the laminating machine is mainly controlled by frequency conversion, with high production safety and good reliability, which improves the production efficiency and time.

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