Reading：Release film refers to the film whose surface can be distinguished. The release film has no viscosity or slight viscosity after contacting with specific materials under limited conditions. So, what are the matching methods of different release membra...
Release film refers to the film whose surface can be distinguished. The release film has no viscosity or slight viscosity after contacting with specific materials under limited conditions. So, what are the matching methods of different release membranes and materials?
Silicon release film: generally used with acrylic adhesive, it can play a good role in penetrating the molecules of the isolation adhesive, and can easily peel the double-sided adhesive from the release film.
Fluorine release membrane: It is used with silica gel because silica gel and silicon release membrane are easy to react, while fluorine can effectively isolate silica gel molecules.
(1) The industry matching standard 3:1 is the minimum parting force matching for the production of double sided tape master roll, and 5:1 is the minimum parting force matching for die-cutting products, but many people have misunderstood its meaning. Its parting film matching ratio is based on the parting force generated by the fitting of each type of double sided tape and the parting film, not the general standard parting force.
(2) When the single adhesive (or island adhesive) of single die cutting products is less than 10mm, the ratio of release force of release film should be increased.
(3) The function of release film is to isolate the penetration of double-sided adhesive molecules and generate release force. However, the thicker the double-sided adhesive layer is, the greater the fluidity of adhesive is, and the stability of release force will be relatively low. Therefore, the ratio of release film should also be increased.
(4) Try to increase the matching ratio of release film and reduce the risk of reverse release without affecting the use of customers.
