PET release film also known as PET silicone oil film, it is to apply a layer of silicone oil on the surface of PET film to reduce its adhesion and achieve the effect of release. It can be divided into single-sided release film and double-sided release film. According to the release force, it can be divided into light release membrane, medium release membrane, and heavy release membrane. The commonly used thicknesses are: 0.012mm, 0.019mm, 0.025mm, 0.038mm, 0.05mm, 0.075mm, 0.1mm, 0.125mm, 0.188mm. PET release film manufacturers are equipped with large slitting and slicing machines that roll and slice according to your specifications. Jinlu PET release film has been widely used in industries such as packaging, printing, screen printing, pad printing, nameplate, film switch, flexible circuit, insulation products, circuit board, laser anti-counterfeiting, bonding, electronics, sealing material film, reflective material, waterproof material, sanitary paper, adhesive products, die cutting and punching processing.

Regarding the use of PET release film in die cutting, the following issues are often encountered:

1. There is a noise during peeling, which is caused by excessive release force and uneven coating.

2. Anti stripping is mainly caused by an unsatisfactory combination of release forces, due to two reasons. Firstly, the factory inspection of release films is not strict, the inspection equipment is incomplete, and the production process is not stable enough, resulting in excessive differences in release forces between products of the same model. As a result, the die-cutting factory used the release film they thought was the release force due to usage habits. Secondly, the weathering resistance of the release layer is insufficient and has undergone significant changes over time.

3. After being attached to the tape, it cannot be peeled off, which is usually caused by uneven application. Some release films that are severely missed can cause a certain part to have no release effect, resulting in the tape being unable to be peeled off. This problem should be avoided in circular knife die-cutting.

4. The oily release surface is mainly caused by the isolation agent system, and it is not necessarily bad for oily things. In fact, some oily release films are evenly coated on the surface and have better residual adhesion. But some are purely poor in sealing, and silicone oil is prone to detachment. These can all be determined through detection.

5. Static electricity problems are generally permanent in terms of chemical treatment, in addition to physical treatment methods. Generally, photoelectric grade die-cutting factories have dust-free workshops and equipment for removing static electricity, so the problem is not significant. For those with strict requirements, anti-static coated release films can be chosen.