The peeling force of release paper

The peeling force of release paper mainly depends on the silicone oil formula and the coating amount. When the silicone oil formula remains unchanged, the amount of coating directly affects the peeling performance. A higher coating amount can densely cover the base paper or the base paper after lamination, ensuring the uniform distribution of silicone oil. However, a lower silicone oil coating amount is prone to phenomena such as coating omission, resulting in poor peeling. Some release coating suppliers reduce the silicone oil coating amount to save costs, resulting in a heavier peeling force and producing heavy - release paper, which poses a considerable risk during use. The normal - temperature peeling force refers to the peeling force data obtained through the standard test method using Tesa7475 at normal temperature. The unit is N/25mm, and it can be converted into grams. 1. Generally, a peeling force of about 0.15N/25mm, that is, around 15 grams, is commonly known as light peeling. 2. A peeling force of 0.250N/25mm, that is, 20 - 30 grams, is commonly known as medium peeling. 3. A peeling force of 0.4 - 0.6N/25mm, that is, 40 - 60 grams, is commonly known as heavy peeling. 4. Of course, there is also a peeling force of 0.03 - 0.05N/25mm, that is, 3 - 5 grams, which is commonly known as ultra - light peeling. 5. There is also a peeling force of 1.00N/25mm, that is, more than 100 grams, which is commonly known as extra - heavy peeling. The residual adhesion rate refers to the force during the second peeling after the first peeling of the release paper. The data obtained through calculation mainly reflects the curing effect of the silicone oil.