The laminating process done with various materials and equipment is divided into several categories according to the temperature and use of the raw materials (consumables) used. The following classifications are introduced.
Film laminating machine: The method of using a cold pressing method to smear the film on the surface of the picture at room temperature is called cold sputum. Among them, there are single-sided enamel and double-sided enamel. There are also artificial film peeling and self-uncovering film defects in the operation method. The cold heading process has the characteristics of simple operation, good effect and low cost. Currently widely used in advertising light boxes, engineering drawings and the later production of wedding photography.
Laminating machine enthusiasm: The mounting method of the special hot film on the equipment heated to a certain temperature (about 100-180 ° C) is called hot enthalpy, which can be divided into single-sided enthalpy and double-sided enthalpy, because It has good light permeability and water resistance, good heat resistance and strong hardness. It is suitable for post-production of advertising pictures based on lighting or other occasions. However, enthusiasm equipment and consumables are more expensive, complicated to operate, energy-intensive, and costly.
It is similar to enthusiasm, but it is generally miniaturized. At present, the largest specification plastic sealing equipment on the market is 24 inches, which is packaged by special plastic film heating, mainly used for packaging of documents, small size pictures or documents.
Laminator vacuum coating
The film is vacuumed at a certain temperature using a special vacuum laminator to complete the film at a certain temperature. The operation method is complicated, the cost is high, and the screen size is limited, but the quality of the armor is high, and the picture quality is strong, which is suitable for photos.
Troubleshooting:
First, the machine does not start: the input wire is not connected, the power cable is reversed, and the voltage is not enough.
Second, the temperature measurement is not accurate: thermocouple, temperature controller. Whether the installation is incorrect and damaged.
Third, the working vacuum does not come: the gas path is not connected, the hand valve or solenoid valve is not closed, the vacuum pump motor belt is loose, and the vacuum gauge is damaged.
Fourth, the main power switch trip: heating box top input wire leakage, distribution box leakage, external wires on the equipment, motor leakage and so on.
5. The film is not in place: the vacuum is not enough, the air leaks, the temperature is not enough, the film is too thin, the workpiece is pasted by other materials, the concave depth of the workpiece exceeds the film pull-up, the suction time is too short, the film is not pulled up, the workpiece distance Too close.
Sixth, the surface of the workpiece is folded and not smooth or the corners are not covered: the film is not straightened, the film quality is not good, the workpiece is not well polished, the glue is sprayed too much, and the mold under the workpiece is too low.
7. When the suction is not applied, the film pulls down: Whether the solenoid valve or the hand valve is open.
Eight, play the phenomenon: the temperature is too high, the heating time is too long, the film quality is not good, no heating.
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