PET release film has many advantages, mainly reflected in the following aspects:

Outstanding release performance: The surface energy of PET release film is low, and its affinity with substances such as adhesives is small, resulting in poor adhesion of adhesives on its surface and thus achieving a good release effect. When it is necessary to peel off the material adhered to its surface, it can be easily separated without leaving any adhesive residue and is less likely to cause damage to the stripped material.

High transparency and excellent optical performance: PET itself has a very high transparency. The transparency of the release film made from it usually reaches over 90%, and it also has good gloss and low haze. This enables it to clearly display the appearance of the protected object in some applications with high requirements for appearance display, such as electronic screen protectors and optical lens protection fields, without affecting its visual effect and optical performance.

Good physical and mechanical properties: PET release film has high tensile strength and tear strength, and can withstand a certain degree of stretching and tearing without easily breaking. Meanwhile, it also has good wear resistance and flexibility. During use, it can resist external forces such as friction and bending, and is less likely to suffer from scratches, creases and other damages, thus providing reliable protection for the protected object.

Good chemical stability: PET release film has excellent chemical stability and is not easily eroded by acids, alkalis, salts and other chemical substances. It can maintain stable performance in different chemical environments. This makes it suitable for various application scenarios that require contact with chemical substances. For instance, when used as an isolation and protective material in the packaging or production process of some chemical products, it will not undergo performance changes or damage due to contact with chemical substances.

Strong temperature resistance: PET release film has good resistance to high and low temperatures and can maintain stable performance over a wide temperature range. Under normal circumstances, it can be used normally in a temperature environment ranging from -40 ℃ to 120℃. Some specially treated PET release films can even withstand higher temperatures. This makes it widely applicable in the production and packaging of some products that require high-temperature processing or low-temperature storage, such as in high-temperature processing procedures like soldering and coating of electronic components, as well as in the packaging of medicines and foods in cold chain logistics.

Excellent dimensional stability: PET release film shows little dimensional change under different environmental conditions, such as temperature and humidity variations, and has good dimensional stability. This feature enables it to accurately position and fit in some applications with high requirements for dimensional accuracy, such as the precision processing of electronic components and the manufacturing of optical products, ensuring the quality and consistency of the products.

Good environmental performance: PET material itself is a recyclable material and meets environmental protection requirements. PET release film can be recycled and reprocessed after use to make other plastic products, reducing pollution to the environment. In addition, during the production process of PET release film, environmentally friendly production techniques and raw materials can also be adopted to further reduce its impact on the environment.

The PET release film series is a type of film product that uses polyethylene terephthalate (PET) as the base material and has a release function after special surface treatment. The following is a detailed introduction to the PET release film series:

Classification

Classified by release force

Light release force PET release film: The release force is generally between 5 and 10g/25mm. It is suitable for occasions with high release requirements, where easy peeling is needed without leaving adhesive residue, such as electronic tags and optical adhesive bonding fields.

Medium release force PET release film: The release force is around 10-20g /25mm. It is often used for release protection of products such as double-sided tape and foam tape. It can ensure a firm fit while facilitating peeling during use.

Heavy release force PET release film: The release force is greater than 20g/25mm. It is mainly used in some occasions that require strong adhesive retention force, such as high-strength industrial tapes, special adhesive products, etc. It can effectively prevent the tape from falling off during storage and transportation.

Classified by surface treatment

Single-sided release PET release film: Only one side of the PET film is released, while the other side retains the characteristics of a regular PET film. Different uses can be selected between the release surface and the non-release surface as needed, such as one side for bonding adhesives and the other side for printing or other processing.

Double-sided release PET release film: Release treatment is carried out on both sides of the PET film, which is suitable for applications that require release function on both sides, such as some special packaging materials, intermediate layer materials, etc., facilitating the peeling operation from both sides during use.

Matte release PET release film: Through a special surface treatment process, the surface of the release film presents a matte effect, featuring low gloss and excellent anti-glare performance. It is often used in fields such as electronic device displays and optical lenses where surface optical performance is required. It can reduce reflected light and enhance visual effects.

Smooth release PET release film: With a smooth surface and high transparency, it offers excellent visual effects and optical performance. It is suitable for products with high requirements for appearance display, such as labels and packaging fields, and can clearly show the appearance of the protected object.

Characteristics

High transparency: PET itself has excellent optical properties. The release film made from it has a high transparency of over 90%, which can clearly display the appearance of the protected item without affecting its visual effect.

Excellent physical properties: PET release film has high tensile strength, tear strength and wear resistance, and can withstand a certain degree of stretching, friction and tearing. It is not easy to break or be damaged during use, and can effectively protect the surface of the protected object.

Stable chemical properties: It has good chemical stability, is not easily eroded by chemical substances, and can maintain stable performance under different environmental conditions, making it suitable for applications in various chemical environments.

Precise release control: Through advanced production processes and formula adjustments, the release force of the release film can be precisely controlled to meet the specific requirements of different customers for release performance, ensuring that during use, it can not only firmly protect the adhered object but also be conveniently removed.

Application field

In the electronics industry, it is widely used in the production, processing and packaging of electronic components, such as carrier films for chips, capacitors, resistors, etc., as well as release layers for screen protectors of electronic devices like mobile phones and tablet computers. It can protect the surface of electronic components from damage and facilitate peeling operations during assembly.

Adhesive products industry: It is an indispensable material in the production of adhesive products such as double-sided tape, labels, and foam tape. As a release layer, it provides temporary protection for the adhesive, preventing it from being contaminated or adhering during storage and transportation. When in use, it can be easily peeled off, allowing the adhesive to accurately adhere to the surface of the target object.

In the field of optics: It is used for protection during the production and processing of optical products such as optical lenses, polarizers, and diffusers. Its high transparency and excellent release performance can ensure that the surface quality and optical performance of optical products are not affected. At the same time, the release film can be conveniently removed during subsequent processing and assembly.

In the packaging industry, in some high-end packaging fields, such as the packaging of cosmetics, food, and medicine, PET release film can be used as the inner or interlayer of packaging materials, serving to isolate, protect, and facilitate opening. For instance, in some blister packaging of medicines, the release film can serve as an isolation layer between the aluminum foil and the medicine, making it convenient for patients to tear open the packaging and take out the medicine.