The film coating machine can be applied to the preparation of optical tapes. OCA (Optically Clear Adhesive) is made of optical acrylic glue without base material, and then laminated a layer of release film on the upper and lower base layers to obtain a double-sided adhesive tape without base material. OCA is generally used in the form of It leaves the factory in the form of double-sided tape, so it is also called optical tape or optical double-sided adhesive.
Membrane method
The following is the coating application of optical tape and its film making method:
Prepare the substrate: The optical tape needs to be coated on the substrate, which can be polyester film, polyimide film, etc. The substrate needs to be dry, clean, flat, and have a smooth surface.
Prepare coating solution: Mix required optical tape coating materials (such as polymers, plasticizers, stabilizers, etc.) and solvents in a certain proportion to form a coating solution.
Coating: put the coating solution into the coating machine, adjust the parameters of the coating machine, such as coating speed, coating pressure, etc., according to the required coating thickness and coating speed. Start the Film Applicator to allow the coating solution to be evenly coated on the substrate. Different application methods can be used, such as knife coating, spraying, etc.
Drying: After the coating is completed, the substrate is placed in a drying chamber for drying so that the coating solution forms a firm film on the substrate.
Processing: According to needs, the film can be subjected to subsequent processing, such as cutting, laser engraving, etc.
Test: Test the prepared optical tape, such as optical properties, mechanical properties, etc.
In a word, the coating machine can realize the effective coating of optical tape, improve production efficiency and product quality. During the coating process, the parameters of the coating machine need to be adjusted reasonably to achieve the required coating thickness and coating quality. Through subsequent processes such as drying, processing and testing, the desired optical tape can be obtained.
