The technical specifications of the release paper include the following: dry silicon coating amount, room temperature peeling force, aging peeling force and residual adhesion rate. The amount of dry silicon coating refers to the amount of the release agent applied to the material in grams per square meter. Generally, the coating amount of the solvent-type silicone oil is from 0.30 to 0.80 g per square meter, and the coating amount of the solvent-free silicone oil is from 0.80 to 1.30 g per square meter. Professional test equipment is required to test the amount of coating.
The technical specifications of the release paper include the following: dry silicon coating amount, room temperature peeling force, aging peeling force and residual adhesion rate.
The amount of dry silicon coating refers to the amount of the release agent applied to the material in grams per square meter. Generally, the coating amount of the solvent-type silicone oil is from 0.30 to 0.80 g per square meter, and the coating amount of the solvent-free silicone oil is from 0.80 to 1.30 g per square meter. Professional test equipment is required to test the amount of coating.
The amount of silicone oil applied directly affects the peel performance. With a higher coating amount, the base paper can be densely covered to ensure uniform distribution of the silicone oil. However, the lower silicone oil coating amount is prone to leakage coating and the like, resulting in poor peeling. Some release coating suppliers have reduced the amount of silicone oil coating, resulting in heavy stripping, and the production of heavy release paper, which is quite risky in use.
Reliable manufacturers can adjust the peeling force by adjusting the chemical formula without reducing the amount of silicone oil coating. This is a technology that takes a long time to accumulate, not a one-off.
Normal temperature peeling force, peeling force data obtained by standard test method at normal temperature, the unit is N/25mm, which can be converted into grams.
Generally 0.10N / 25mm, that is, the peeling force of 10 grams or less, commonly known as light peeling;
0.20N/25mm, that is, a peeling force of 20g or less, commonly known as medium peeling;
0.35~0.45N/25mm, that is, the peeling force of 35~45g, commonly known as heavy peeling;
0.60~0.80N/25mm, which is the peeling force of 60~80g, commonly known as heavy peeling;
Of course, there are also 0.03~0.04N/25mm, which is the peeling force of 3~4g, which is commonly called light peeling;
There is also a peel force of 1.00N/25mm, that is, 100g or more, which is commonly known as overweight peeling.
The aging peeling force, the peeling force data measured after aging, is generally slightly larger than the normal temperature peeling force.
The residual adhesion rate refers to the force of the release paper after the first peeling and the second peeling. The calculated data mainly reflects the curing effect of the silicone oil.
The residual adhesion of UV-cured silicone oil is generally 100%, and the residual adhesion of heat-cured silicone oil is up to 90%. A few suppliers are suspicious if they claim that their residual paper residual adhesion rate is 100%. If desiliconization occurs, the residual adhesion of such release papers will generally not be higher than 70%.
Testing of release paper specifications is a fairly complicated project. General electronics factories and tape factories can only test the last few data. As for the amount of silicone oil coating, it is generally not present in the technical report of the release coating supplier.
The technical specifications of the release paper include the following: dry silicon coating amount, room temperature peeling force, aging peeling force and residual adhesion rate.
The amount of dry silicon coating refers to the amount of the release agent applied to the material in grams per square meter. Generally, the coating amount of the solvent-type silicone oil is from 0.30 to 0.80 g per square meter, and the coating amount of the solvent-free silicone oil is from 0.80 to 1.30 g per square meter. Professional test equipment is required to test the amount of coating.
The amount of silicone oil applied directly affects the peel performance. With a higher coating amount, the base paper can be densely covered to ensure uniform distribution of the silicone oil. However, the lower silicone oil coating amount is prone to leakage coating and the like, resulting in poor peeling. Some release coating suppliers have reduced the amount of silicone oil coating, resulting in heavy stripping, and the production of heavy release paper, which is quite risky in use.
Reliable manufacturers can adjust the peeling force by adjusting the chemical formula without reducing the amount of silicone oil coating. This is a technology that takes a long time to accumulate, not a one-off.
Normal temperature peeling force, peeling force data obtained by standard test method at normal temperature, the unit is N/25mm, which can be converted into grams.
Generally 0.10N / 25mm, that is, the peeling force of 10 grams or less, commonly known as light peeling;
0.20N/25mm, that is, a peeling force of 20g or less, commonly known as medium peeling;
0.35~0.45N/25mm, that is, the peeling force of 35~45g, commonly known as heavy peeling;
0.60~0.80N/25mm, which is the peeling force of 60~80g, commonly known as heavy peeling;
Of course, there are also 0.03~0.04N/25mm, which is the peeling force of 3~4g, which is commonly called light peeling;
There is also a peel force of 1.00N/25mm, that is, 100g or more, which is commonly known as overweight peeling.
The aging peeling force, the peeling force data measured after aging, is generally slightly larger than the normal temperature peeling force.
The residual adhesion rate refers to the force of the release paper after the first peeling and the second peeling. The calculated data mainly reflects the curing effect of the silicone oil.
The residual adhesion of UV-cured silicone oil is generally 100%, and the residual adhesion of heat-cured silicone oil is up to 90%. A few suppliers are suspicious if they claim that their residual paper residual adhesion rate is 100%. If desiliconization occurs, the residual adhesion of such release papers will generally not be higher than 70%.
Testing of release paper specifications is a fairly complicated project. General electronics factories and tape factories can only test the last few data. As for the amount of silicone oil coating, it is generally not present in the technical report of the release coating supplier.
