Release Liner

Production Market
600+ customers annually. Products are exported to Vietnam, Singapore, India, the United States, Germany and so on.

R&D Capability
7 invention patents, 3 high-tech product certification certificates, 8 utility model patents, national high-tech enterprise, Suzhou Engineering Research Center.

Production Equipment
18 production coating lines / 9 rewinding machines
2 sample coating lines / 18 slitting machines / 11 cutting machines

Our Factory
Founded in 2008 TAILUN is one of the largest coating manufacturers in China, and is committed to the technical research and development and production of adhesive materials in consumer electronics, automotive, electrical and other industries Main products include protective film, adhesive tape, release film and PI products, etc.

Packaging Industry
In the packaging industry, release liners are essential for various adhesive-based packaging solutions. They enable easy application of labels, tapes, and other adhesive products while preserving their adhesive properties until use. This ensures that the packaging materials remain intact and securely sealed, providing protection to the contents inside. Moreover, release liners facilitate smooth die-cutting and converting processes, allowing for precise and efficient production of packaging materials.

For example, in the food packaging sector, release liners are used in the production of self-adhesive labels that are applied to food containers. These liners ensure that the labels can be easily applied to the containers without any damage to the adhesive or the label itself. This not only enhances the visual appeal of the packaging but also provides important product information to consumers.

Medical Field
Release liners find extensive use in the medical field, particularly in wound care products, surgical tapes, and transdermal patches. These liners ensure sterile and reliable application of medical adhesives while maintaining product integrity and ease of use.

When it comes to wound care products, release liners are used to protect the adhesive layer of bandages and dressings. They prevent the adhesive from sticking to other surfaces during storage and transportation, ensuring that the product remains hygienic and ready for use. Additionally, release liners make it easier for healthcare professionals to apply the bandages or dressings accurately and securely, providing optimal wound care.

Electronics Manufacturing
Release liners are integral to electronics manufacturing, where precise positioning of adhesive components is crucial. They aid in the manufacturing of electronic displays, touch screens, and circuit boards, preventing adhesive contamination and facilitating clean assembly processes.

For instance, in the production of electronic displays, release liners are used to protect the adhesive layer that bonds the display components together. These liners ensure that the adhesive remains intact and free from any contaminants, such as dust or fingerprints, during the manufacturing process. This helps in maintaining the quality and reliability of the electronic displays.

Release liners play a vital role in the production of touch screens. They allow for accurate placement of adhesive films that enable touch functionality, ensuring that the touch screens function smoothly and accurately. Without release liners, the adhesive films could easily get damaged or contaminated, leading to compromised performance of the touch screens.

PET release film, as the name suggests, is a polyester film with specific release properties on the surface. This type of material is widely used in industry, such as film for electronic products, covering and protecting adhesive products, etc. PET (polyethylene terephthalate) material is favored for its excellent mechanical properties, chemical stability, and good heat resistance.

The production of PET release film mainly includes the following key steps
●Raw material preparation: Use high-quality PET raw material particles to ensure excellent basic performance of the membrane material.
●Melting and extrusion: PET particles are melted at high temperatures and extruded through an extruder to form a film.
●Stretching and orientation: The prepared primary film is oriented through the heating and stretching process to enhance its physical properties.
●Release coating treatment: Apply a layer of release agent evenly on the surface of the PET film. Common release agents include silicone oil, etc. The thickness and uniformity of the release coating directly affect the release effect, so it needs to be accurately controlled.
●Curing and heat treatment: The coated membrane needs to be cured through heat treatment processes such as baking to ensure its good release and stability.
●Cooling and coiling: After heat treatment, the film needs to be cooled for coiling. The cooling rate should not be too fast to prevent uneven shrinkage of the film.
●Cutting and packaging: According to customer needs, large rolls of film materials are cut into specified specifications, and quality inspection, packaging and shipment are carried out.

Throughout the entire production process, quality control is crucial. For example, the temperature control during the extrusion process needs to be precise to ensure uniform film material texture; the uniformity of the release agent coating is directly related to the use effect of the final product; the time and temperature setting of the curing stage must be strictly operated in accordance with the standards.

The production technology of PET release film is relatively high, which not only requires high-quality raw materials and advanced production equipment, but also requires high skills of operating technicians. Through continuous technological innovation and production process optimization, more high-quality and multi-functional PET release films can be obtained to meet the changing needs of the market.