The key points for quality control of release film include coating uniformity, high residual adhesion, flatness, and high cleanlines.

1、 High residual adhesion: In addition to being affected by the silicone oil formula, coating conditions, and substrate treatment conditions, the technical services of the silicone oil factory also need to be strengthened.

2、 Flatness: Coating equipment is crucial for smoothness, and the blending of silicone oil is also crucial. Most domestic coating factories do not have very good control over solvent based silicone oil.

3、 Coating uniformity: The release film needs to be evenly coated. In addition to selecting appropriate solvents, controlling the concentration, viscosity, and solvent evaporation time of the coating agent, the coating equipment is crucial. Most domestic coating factories do not have very good control over solvent based silicone oil. Usually, there is a rainbow phenomenon, and in addition to strengthening the technical and analytical capabilities of coating, the technical services of silicone oil factories also need to be strengthened.

4、 Cleanliness: There are several parts to control in order to improve the cleanliness of the product. Firstly, the cleanliness and dust removal device of the base film, followed by the setting of a dust-free workshop, and then the dust removal setting of the cutting equipment. Improving the cleanliness of the product can actually reduce the phenomenon of re stripping of the release film.

If you want to learn more about relevant information, please follow the news updates and details on the our website. Reechas is a high-tech enterprise founded in 2006 and headquartered in Shenzhen, China. We focus on the development, production, and sales of integrated laminating products, including release films, conformal films, and press pads. These products are widely usedin PCB, FPC,  rigid-flex PCB, 5G PCB, IC substrate, CCL, smart card, copper coin & heat-sink and other industries.