阅读说明：本技术 一种抗静电离型膜 (Antistatic release film ) 是由 祁银松 卞军 于 2020-08-18 设计创作，主要内容包括：本发明提供一种抗静电离型膜,包括基层,所述基层的一侧设置有丝网层,所述基层的另一侧设置有第二抗静电层；所述丝网层上与所述基层相背离的一侧设置有第一抗静电层,所述第二抗静电层上与所述基层相背离的一侧设置有离型剂涂层。在本发明中,基层为离型膜提供支撑,由于基层本身的抗静电能力较差,所以在基层的两侧设置第一抗静电层、第二抗静电层,通过第一抗静电层、第二抗静电层的抗静电能力提升离型膜的抗静电能力；通过在第一抗静电层与基层之间夹设具有较高强度的丝网层,可提升离型膜的强度,延长离型膜的使用寿命及抗冲击能力。(The invention provides an antistatic release film which comprises a base layer, wherein a silk screen layer is arranged on one side of the base layer, and a second antistatic layer is arranged on the other side of the base layer; and a first antistatic layer is arranged on one side of the silk screen layer, which is deviated from the base layer, and a release agent coating is arranged on one side of the second antistatic layer, which is deviated from the base layer. In the invention, the base layer provides support for the release film, and because the antistatic capacity of the base layer is poor, the first antistatic layer and the second antistatic layer are arranged on two sides of the base layer, so that the antistatic capacity of the release film is improved through the antistatic capacities of the first antistatic layer and the second antistatic layer; through press from both sides the silk screen layer that establishes to have higher intensity between first antistatic layer and basic unit, can promote the intensity from type membrane, the extension is from type membrane's life and shock resistance.)

1. The antistatic release film is characterized by comprising a base layer, wherein a silk screen layer is arranged on one side of the base layer, and a second antistatic layer is arranged on the other side of the base layer; and a first antistatic layer is arranged on one side of the silk screen layer, which is deviated from the base layer, and a release agent coating is arranged on one side of the second antistatic layer, which is deviated from the base layer.

2. The antistatic release film according to claim 1, characterized in that: the wire mesh layer is provided with a plurality of strip-shaped wire mesh groups which are arranged in parallel and continuously, wire mesh units which are in an equilateral triangle structure and made of a plurality of metal wires which are connected in a positive and negative staggered mode are arranged in the wire mesh groups, and antistatic fillers with the height not exceeding the thickness of the wire mesh layer are uniformly filled in the wire mesh units.

3. The antistatic release film according to claim 2, characterized in that: the thickness of the silk screen layer is 5-10 mu m, and the side length of the silk screen unit is 1-3 mm.

4. The antistatic release film according to claim 2, characterized in that: the antistatic filler is tin oxide, titanium oxide or zinc oxide, and the particle size of the antistatic filler is 0.1-0.2 pm.

5. The antistatic release film according to claim 1, characterized in that: the first antistatic layer is a PET antistatic film, and the thickness of the first antistatic layer is 10-25 μm.

6. The antistatic release film according to claim 1, characterized in that: the second antistatic layer is a PET antistatic film, and the thickness of the second antistatic layer is 10-25 μm.

7. The antistatic release film according to claim 1, characterized in that: the base layer is a PVC plastic film, a PE plastic film, a PP plastic film or a PS plastic film.

8. The antistatic release film according to claim 7, characterized in that: the thickness of the base layer is 25-80 μm.

9. The antistatic release film according to claim 1, characterized in that: and a protective layer is arranged on one side of the first antistatic layer, which is far away from the silk screen layer, and is a polyurethane resin coating, and the thickness of the protective layer is 15-20 mu m.

10. The antistatic release film according to claim 1, characterized in that: the release agent coating is an SN200 silicon-free release agent coating, and the release agent coating is 3-10 mu m.

Technical Field

The invention belongs to the technical field of release films, and particularly relates to an antistatic release film.

Background

Release films are films whose surface energy is differentiated, and release films are not sticky or slightly sticky after being contacted with a particular material under limited conditions.

The common release film at present comprises a casting polypropylene substrate, wherein one side of the casting polypropylene substrate is provided with a corona layer, one side of the corona layer, which is far away from the casting polypropylene substrate, is provided with a glue coating layer, and the casting polypropylene substrate, the corona layer and the glue coating layer are mutually attached; this from type membrane is through changing tradition from type membrane coating substrate, change traditional polyester substrate for current ultra-thin curtain coating polypropylene material, overcome the easy fold of ultra-thin polypropylene material in the coating simultaneously and warp the technological difficulty, and the ultra-thin type membrane of leaving from the type force that possesses of formation stability, its material is softer, flexibility is good, the ductility rate is 3-4 times of traditional polyester material, the material does not have static adsorptivity, the biggest peel angle can reach 180 degrees, the problem that the low yield is peeled off to the antithetical couplet version after the cross cutting of minimum sticky goods in the solution current cell-phone spare part production, very big improvement is made the yield.

However, in the process of adhering to the electronic product, the release film in the prior art has static electricity due to friction and other circles, and the static electricity generated by the release film can cause damage such as electrostatic breakdown to the original piece in the electronic product, affect the quality of the electronic product, and even damage the electronic product.

Therefore, it is necessary to design an antistatic release film with a novel structure capable of effectively avoiding the generation of static electricity to solve the technical problems faced at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the antistatic release film which is novel in structure and can effectively avoid static electricity.

The technical scheme of the invention is as follows: the antistatic release film comprises a base layer, wherein a silk screen layer is arranged on one side of the base layer, and a second antistatic layer is arranged on the other side of the base layer; and a first antistatic layer is arranged on one side of the silk screen layer, which is deviated from the base layer, and a release agent coating is arranged on one side of the second antistatic layer, which is deviated from the base layer.

The wire mesh layer is provided with a plurality of strip-shaped wire mesh groups which are arranged in parallel and continuously, wire mesh units which are in an equilateral triangle structure and made of a plurality of metal wires which are connected in a positive and negative staggered mode are arranged in the wire mesh groups, and antistatic fillers with the height not exceeding the thickness of the wire mesh layer are uniformly filled in the wire mesh units.

The thickness of the silk screen layer is 5-10 mu m, and the side length of the silk screen unit is 1-3 mm.

The antistatic filler is tin oxide, titanium oxide or zinc oxide, and the particle size of the antistatic filler is 0.1-0.2 pm.

The first antistatic layer is a PET antistatic film, and the thickness of the first antistatic layer is 10-25 μm.

The second antistatic layer is a PET antistatic film, and the thickness of the second antistatic layer is 10-25 μm.

The base layer is a PVC plastic film, a PE plastic film, a PP plastic film or a PS plastic film.

The thickness of the base layer is 25-80 μm.

And a protective layer is arranged on one side of the first antistatic layer, which is far away from the silk screen layer, and is a polyurethane resin coating, and the thickness of the protective layer is 15-20 mu m.

The release agent coating is an SN200 silicon-free release agent coating, and the release agent coating is 3-10 mu m.

The invention has the beneficial effects that:

(1) in the invention, the base layer provides support for the release film, and because the antistatic capacity of the base layer is poor, the first antistatic layer and the second antistatic layer are arranged on two sides of the base layer, so that the antistatic capacity of the release film is improved through the antistatic capacities of the first antistatic layer and the second antistatic layer;

(2) through press from both sides the silk screen layer that establishes to have higher intensity between first antistatic layer and basic unit, can promote the intensity from type membrane, the extension is from type membrane's life and shock resistance.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a silk screen layer of the present invention.

Detailed Description

The following describes the embodiments of the present invention with reference to the drawings and examples.

As shown in fig. 1, the antistatic release film comprises a base layer 1, a silk screen layer 3 is arranged on one side of the base layer 1, and a second antistatic layer 6 is arranged on the other side of the base layer 1; a first antistatic layer 4 is arranged on one side of the silk screen layer 3, which is far away from the base layer 1, and a release agent coating 2 is arranged on one side of the second antistatic layer 6, which is far away from the base layer 1; in this embodiment, basic unit 1 provides the support for leaving the type membrane, because the antistatic backing of basic unit 1 itself is relatively poor, so set up first antistatic layer 4 in basic unit 1's both sides, antistatic backing 6 of second, antistatic backing 6's antistatic backing through first antistatic layer 4, the antistatic backing of second promotes the antistatic backing of leaving the type membrane, through press from both sides the silk screen layer 3 that establishes to have higher intensity between first antistatic layer 4 and basic unit 1, can promote the intensity of leaving the type membrane, the extension is from the life and the shock resistance of type membrane.

As shown in fig. 2, the screen layer 3 has a plurality of strip-shaped screen groups 302 arranged in parallel and continuously, the screen groups 302 are made of metal wires by welding, two adjacent screen groups 302 are connected into an integral structure, the screen groups 302 have screen units 3021 of equilateral triangle structure made of a plurality of metal wires connected in a staggered manner in a positive and negative direction, specifically, the screen units 3021 are fixedly connected and supported by three metal wires with the same length in a tail-ending manner to form a stable triangle structure, so that the screen layer 3 has strong impact resistance, one edge is shared by two adjacent screen units 3021 in the same screen group 302, thereby forming a triangle frame structure arranged in a continuously staggered manner, and, because the metal wire has good bending performance, the silk screen layer 3 can be bent and rolled along with the release film, and the antistatic filler 301 with the height not exceeding the thickness of the silk screen layer is uniformly filled in the silk screen unit 3021.

As a more specific embodiment of the screen layer 3, the screen layer 3 has a thickness of 5 to 10 μm and the side length of the screen unit 3021 is 1 to 3 mm.

As a more specific embodiment of the antistatic filler 301, the antistatic filler 301 is tin oxide, titanium oxide or zinc oxide, and the particle size of the antistatic filler is 0.1 to 0.2 pm; tin oxide, titanium oxide and zinc oxide are all metal oxide filled type antistatic materials, and tin oxide is preferred, has light color, can meet the requirement of transparency of the release film, and can enable the release film to have antistatic capacity.

The first antistatic layer 4 is a PET antistatic film, the PET antistatic film is formed by using a polyester film subjected to antistatic treatment as a base material, coating an acrylic adhesive, an antistatic treatment layer and attaching a release film, and the surface protection material has the functions of preventing dust and impurity from being adsorbed and preventing static damage, is the prior art, and is not repeated, and specifically, the thickness of the first antistatic layer 4 is 10-25 μm.

The second antistatic layer 6 is a PET antistatic film, the PET antistatic film is formed by coating an acrylic adhesive and an antistatic treatment layer on a base material of a polyester film subjected to antistatic treatment and attaching a release film, and the surface protective material has functions of preventing dust and impurity from being adsorbed and preventing static damage, is the prior art, and is not repeated, and specifically, the thickness of the first antistatic layer 4 is 10-25 μm.

The base layer 1 is a PVC plastic film, a PE plastic film, a PP plastic film or a PS plastic film, wherein the PVC plastic film is a polyvinyl chloride film in full name, the main component is polyvinyl chloride, and other components are added to enhance the heat resistance, toughness, ductility and the like of the PVC plastic film; the PE plastic film is a polyethylene film, and is a film produced by polyethylene, and the PE plastic film has moisture resistance and small moisture permeability; the PP plastic film refers to a film produced by polypropylene; the PS plastic film is a plastic film made of polystyrene plastic, and the polystyrene film is a hard transparent film with high tensile strength; more specifically, the thickness of the base layer 1 is 25 to 80 μm.

A protective layer 5 is arranged on one side, away from the silk screen layer 3, of the first antistatic layer 4, the protective layer 5 is a polyurethane resin coating, and the polyurethane resin has the characteristics of high strength, tear resistance, wear resistance and the like, so that the surface of the release film has wear resistance, and the surface of the release film is prevented from being scratched; more specifically, the thickness of the protective layer 5 is 15 to 20 μm.

The release agent coating 2 is a coating structure formed by release agents, a coating with lower adhesive strength is utilized on the surface of the release agent coating, a release film can be adhered, specifically, the release agent coating 2 is a silicon-free release agent coating, the release agent coating 2 can be made of a Stanford brand SN200 silicon-free release agent which is synthesized by adopting an alkane polymer, does not contain silicon element, has good adhesive force to various plastic high polymer materials, is moderate in release, is light yellow semi-pasty liquid, can be diluted by using various solvents such as benzene, ketone, ester, alcohol and the like, can be naturally dried for 12 hours or dried for 2-3 minutes at 120 ℃, and particularly, the curing time can be adjusted according to the environmental temperature and the coating thickness; further, the release agent coating 2 is 3-10 μm, the specific release agent coating 2 can be 3 μm, 7 μm or 10 μm, and under the environment of 25 ℃, when the release agent coating 2 is 10 μm, the natural drying is carried out for 12 hours or the drying is carried out for 3 minutes at 120 ℃, when the release agent coating 2 is 7 μm, the natural drying is carried out for 11 hours or the drying is carried out for 2.5 minutes at 120 ℃, and when the release agent coating 2 is 3 μm, the natural drying is carried out for 10 hours or the drying is carried out for 2 minutes at 120 ℃.

The above-mentioned embodiments only express some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.