Analysis of dry knowledge about fluorine-based release film
Fluorine release film, also known as fluorine film or fluorine-based film, primarily serves as a barrier for separating sticky items such as silicone tape and PI tape. During production, storage, or transportation, fluorine release film protects adhesive agents from contamination and deterioration. Currently, it is widely used primarily as a carrier for adhesive tapes or adhesive-coated products.
1. The colors generally include transparent and milky white
2. There is no migration phenomenon, eliminating the risk of the silicone release film transferring to the material it is adhered to.
3. With controllable release force, high glossiness, high cleanliness, and a residual adhesion of 94%, fluorine-based release film possesses excellent surface properties.
4. It has good resistance to ultraviolet aging, chemical corrosion, and solvent penetration.
During the die-cutting process, the release film often encounters the following issues
After the adhesive tape is attached to the release film machine, some of the adhesive tape reverses when it is removed, accompanied by a "snap" sound.
Reason: The sound is made when it is removed. Initially, it was due to excessive release force of the release film, followed by uneven glue mixing.
2: Causing anti-extraction, where the raw materials that should be extracted are not extracted.
Reason: The direct cause of the anti-release issue is the unreasonable combination of release forces in the PET release film. This is due to the original inspection of the release film being unqualified, the inspection machinery being incomplete, and the production process being unstable, which promotes uneven and fluctuating release forces in this specific model of release film.
3: After being die-cut and placed for a period of time, the release film and adhesive tape cannot be separated.
Reason: After placement, the adhesive tape cannot be removed from the release film, usually due to uneven adhesive mixing. In some areas, the release force is insufficient, causing the adhesive tape to be unable to be removed.
4: The release film induces static electricity during the unwinding and winding process, leading to dust adsorption. The reason is that it is not carried out in a clean workshop. To solve the dust problem, one solution is to equip a clean workshop and produce and process in it. Another solution is to use anti-static PET release film materials.