introduction
PET (polyethylene terephthalate) film is a common plastic film material with excellent transparency, tensile resistance and chemical stability, and is widely used in packaging, printing, electronic products and other fields. In the preparation of PET films, it is often necessary to apply glue to their surface to improve their adhesion or to achieve a specific function. This article will discuss the application of vacuum adsorption Film Applicator to coat PET film with glue, and introduce its technical principle, operation steps and application prospects.
The technical principle
A vacuum adsorption coater is a device that fixes the substrate on the coating table through vacuum adsorption, and then uses the coating system to evenly coat the coating on the surface of the substrate. Its working principle is to place the substrate on the vacuum adsorption table, generate negative pressure through the Vacuum Pump, firmly adsorb the substrate on the coating table, and then evenly coat the substrate surface through the coating system.
The application of coating glue on PET film needs to take into account the uniformity, adhesion and stability of the coating. Through the precise control of the coating system, the vacuum adsorption coating machine can realize the adjustment of the thickness, speed and uniformity of the glue application, so as to ensure the quality and consistency of the applied glue.
Steps
1. Preparation:
Make sure that the surface of the PET film is clean and free of dust and impurities.
Prepare a solution for coating glue and adjust its concentration and viscosity as needed.
Set the coating parameters of the vacuum adsorption coater, including coating speed, coating thickness, etc.
2. Coating Experiment:
The PET film is placed on the coating table of the vacuum adsorption coater and fixed by a Vacuum Pump that generates negative pressure.
The coating system is activated, the glue solution is injected into the coating system, and the coating parameters are adjusted through the control system.
Start the coating process to ensure that the coating is evenly applied to the surface of the PET film, and that the coating speed and thickness meet the preset parameters.
After the coating is completed, turn off the coating system, stop the Vacuum Pump, and remove the coated PET film.
3. Detection and Analysis:
Use a microscope or surface topography analyzer to observe the uniformity and surface topography of the applied glue.
Adhesion tests and durability tests are performed to evaluate the performance and stability of the applied glue.
The experimental data were recorded, the influence of coating parameters on the coating effect was analyzed, and the coating process was optimized.
The application prospects
The application of vacuum adsorption Film Applicator for coating glue on PET film has broad prospects and application value:
Packaging: PET film is widely used in the packaging of food, medicine and other products, and the sealing performance and moisture resistance of the packaging bag can be improved by applying glue, and the preservation effect of the product can be enhanced.
Printing field: As a printing substrate, PET film has good flatness and transparency, and in the printing process, the adhesion and printing effect of the printing ink can be improved by applying glue.
Electronics: PET film is widely used in screen protectors and panels of electronic products, and its scratch resistance and abrasion resistance can be improved by applying glue, and the service life can be prolonged.
Conclusions
The application of vacuum adsorption coater to coat PET film with glue provides an effective means to improve the performance and function of PET film. With the continuous development of science and technology, the coating process of coated glue will be more precise and automated, and the application field of coated glue will be further expanded, bringing more possibilities and development opportunities for the application of PET film.
