CN208035541U - Non-silicon release film - Google Patents

Abstract

The utility model discloses a non-silicon release film, which comprises a PE anti-scratch protective film layer, an OCA adhesive layer, an anti-static coating, a corona treatment layer, a PET film layer and a silicon-free release agent layer which are sequentially laminated from top to bottom; the utility model has the advantages of reasonable design, ingenious, add and be equipped with the anti protection rete that scrapes of PE, effectively promote anti-scraping effect, add and be equipped with antistatic coating, strengthen the antistatic properties when the cross cutting, effectively promote the cross cutting precision and guarantee product quality, carry out corona treatment on a surface of PET rete and form corona treatment layer, become rough surface from smooth plane, effectively strengthen the adhesion, prevent that antistatic coating from droing, compound stability is good; adopt no silicon release agent layer, it is even stable from the type force to can not cause the silicon to shift, avoid causing the destruction to gluing the surface, from the smooth level and smooth of type face, no bubble produces after the laminating.

Description

Non-silicon release film

technical field

The utility model relates to the technical field of release films, in particular to a non-silicon release film with good stability.

Background technique

The release film refers to a film whose surface can be distinguished. The release film is not sticky or slightly sticky after contacting with a specific material under limited conditions. Release film, also known as peeling film, isolation film, separation film, barrier film, release film, film, plastic film, pore masking film, silicone oil film, silicone oil paper, anti-adhesive film, type paper, slip film, Tianna paper , Release paper. Usually, in order to increase the release force of the plastic film, the plastic film will be treated with plasma, or coated with fluorine, or coated with a silicon release agent on the surface of the film material, such as PET, PE, PP, OPP, etc.; It can show extremely light and stable release force for various organic pressure-sensitive adhesives (such as hot-melt adhesives, acrylic adhesives and rubber-based pressure-sensitive adhesives). According to the required release force of the release film, the viscosity of the isolation product adhesive is different, and the release force is adjusted accordingly, so that it can achieve an extremely light and stable release force during peeling. The traditional release film will be coated with silicone oil or silicon-containing release agent on the surface of the release film. The silicon-containing release film will cause silicon transfer and damage the surface of the rubber. Some adhesive products and electronic materials sensitive to silicon The use will be affected, which is not conducive to long-term use, so there is an urgent need for a polymer non-silicon release film to be used in the production of silicon-sensitive materials.

The name of the Chinese invention patent application is "a super-heavy release force non-silicon release film and its preparation method", and the publication number is "CN106893512A". A super-heavy release force non-silicon release film and its preparation method are disclosed. The super-heavy release force non-silicon release film includes a film substrate layer and a super-heavy release force non-silicon release layer. Although it can be used in the production of silicon-sensitive materials, it is easy to generate static electricity during die-cutting, which affects the die-cutting accuracy and processing performance; and the scratch resistance is not very good, so it is difficult to ensure that the product will not be scratched.

Utility model content

In view of the above shortcomings, the purpose of this utility model is to provide a non-silicon release film with ingenious and reasonable structural design, good anti-scratch effect and anti-static.

In order to achieve the above purpose, the utility model provides a technical solution: a non-silicon release film, which includes a PE anti-scratch protective film layer, an OCA adhesive layer, an antistatic coating, a corona treatment layer, and a PET film layer And non-silicon release agent layer, the PE anti-scratch protective film layer, OCA adhesive layer, antistatic coating, corona treatment layer, PET film layer and non-silicon release agent layer in order from top to bottom Bonding; the thickness of the PE anti-scratch protective film layer is 50-70 microns, the thickness of the PET film layer is 45-55 microns, and the thickness of the non-silicon release agent layer is 3-5 microns.

As an improvement of the present invention, the thickness of the corona treatment layer is preferably 2-3 microns. The thickness of the OCA adhesive layer is preferably 20-30 microns. The thickness of the antistatic coating is preferably 4-6 microns. The thickness of the corona treatment layer is preferably 1-3 microns.

The beneficial effects of the utility model are: the utility model has a reasonable and ingenious structural design, and a PE anti-scratch protective film layer is added to effectively improve the anti-scratch effect, and an anti-static coating is added to enhance the anti-static performance during die-cutting , to effectively improve the precision of die-cutting and ensure product quality. Corona treatment is performed on one surface of the PET film layer to form a corona treatment layer, which changes from a smooth surface to a rough surface, which effectively enhances the adhesion and prevents the anti-static coating from falling off. Composite stability is good; using a silicon-free release agent layer, the release force is uniform and stable, and will not cause silicon transfer, avoiding damage to the surface of the rubber, the release surface is smooth and flat, and there is no bubble after lamination.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

Detailed ways

Embodiment: Referring to Fig. 1, the utility model embodiment provides a kind of non-silicon release film, and it comprises PE anti-scratch protective film layer 1, OCA viscose layer 2, antistatic coating 3, corona treatment layer 4, PET Film layer 5 and non-silicon release agent layer 6, said PE anti-scratch protective film layer 1, OCA adhesive layer 2, antistatic coating 3, corona treatment layer 4, PET film layer 5 and non-silicon release agent Layers 6 are laminated sequentially from top to bottom.

Preferably, the PE anti-scratch protective film layer 1 has a thickness of 50-70 microns, preferably 60 microns; the PET film layer 5 has a thickness of 45-55 microns, preferably 50 microns; the silicon-free release The thickness of the agent layer 6 is 3-5 microns, preferably 4 microns. The thickness of the corona treatment layer 4 is 2 to 3 microns, preferably 3 microns; the thickness of the OCA adhesive layer 2 is 20 to 30 microns, preferably 25 microns; the thickness of the antistatic coating 3 is 4-6 microns, preferably 5 microns; the thickness of the corona treatment layer 4 is 1-3 microns, preferably 2 microns.

When in use, since the PE anti-scratch protective film layer 1 is added, the anti-scratch effect is effectively improved, the anti-static coating 3 is prevented from being damaged, and the anti-static effect is ensured. An anti-static coating 3 is added to enhance the anti-static property during die-cutting, effectively improve die-cutting accuracy and ensure product quality. Corona treatment is carried out on one surface of the PET film layer 5 to form a corona treatment layer 4, which changes from a smooth plane to a rough surface, effectively enhances the adhesion, prevents the antistatic coating 3 from falling off, and has good composite stability, further ensuring antistatic Electrostatic effect; using silicon-free release agent layer 6, the release force is uniform and stable, and will not cause silicon transfer, avoiding damage to the rubber surface, the release surface is smooth and flat, no air bubbles after lamination, and strong practicability.

According to the disclosure and teaching of the above specification, those skilled in the art to which the utility model belongs can also make changes and modifications to the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description, and do not constitute any limitation to the present invention. The use of other release films identical or similar thereto is within the protection scope of the present invention.

Claims (5)

1. a non-silicon release film, is characterized in that, it comprises PE anti-scratch protective film layer, OCA glue layer, antistatic coating, corona treatment layer, PET film layer and non-silicon release agent layer, so The PE anti-scratch protective film layer, OCA adhesive layer, antistatic coating, corona treatment layer, PET film layer and silicon-free release agent layer are pasted in order from top to bottom; the PE anti-scratch protection The thickness of the film layer is 50-70 microns, the thickness of the PET film layer is 45-55 microns, and the thickness of the non-silicon release agent layer is 3-5 microns. 2. The non-silicon release film according to claim 1, characterized in that the thickness of the corona treatment layer is 2-3 microns. 3. The non-silicon release film according to claim 1 or 2, characterized in that the thickness of the OCA adhesive layer is 20-30 microns. 4. The non-silicon release film according to claim 1 or 2, characterized in that the antistatic coating has a thickness of 4-6 microns. 5. The non-silicon release film according to claim 1, characterized in that the thickness of the corona treatment layer is 1-3 microns.