CN217077483U

CN217077483U - Etching protective film

Info

Publication number: CN217077483U
Application number: CN202221018059.XU
Authority: CN
Inventors: 黄瑞泉; 李皓
Original assignee: Huizhou Keyu New Material Technology Co ltd
Current assignee: Huizhou Keyu New Material Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-07-29
Anticipated expiration: 2032-04-28

Abstract

The utility model relates to a protection film field discloses an etching protection film, including the membrane main part, the membrane main part includes anti-corrosion composite bed, antistatic backing and prevents the static glue film. The corrosion-resistant composite layer includes PTFE layer, FEP layer, PCTFE layer and PVC layer, and the FEP layer sets up on the side on PTFE layer, and the PCTFE layer sets up on the side that the PTFE layer was kept away from on the FEP layer, and the PVC layer sets up on the side that the FEP layer was kept away from on the PCTFE layer, and the side that the PCTFE layer was kept away from on the PVC layer is provided with a plurality of looks spaced bonding bellying. The anti-static layer is arranged on one side face, away from the PCTFE layer, of the PVC layer, and the anti-static layer is arranged on one side face, away from the PVC layer, of the bonding protruding portion. The anti-static glue layer is arranged on one side face, away from the PVC layer, of the anti-static layer, and a plurality of spaced anti-static particles are arranged in the anti-static glue layer. So can improve corrosion resisting property, prevent static effect and adhesive property, can solve because static adsorbs the dust and causes the problem that the viscidity of glue film worsens.

Description

Etching protective film

Technical Field

The utility model relates to a protection film field especially relates to an etching protection film.

Background

The protective film is functionally a film placed over the physical object to be protected. Functional protective films such as an AR anti-reflection film, an AG frosted anti-reflection film, a mobile phone mirror film, a peep-proof film, a high-definition scratch-proof film and the like are available on the world at present. The etching protective film is one of protective films. The production process of articles such as PCB boards, wafers and the like comprises an etching process, generally, an etching protective film is adhered on the surface of the article, then the article is etched by acid solution or alkali solution with certain concentration, and the etching protective film is torn off after the etching is finished, so that the area of the surface of the article which does not need to be etched can be protected.

However, the conventional etching protective film has a poor antistatic effect, is liable to cause poor viscosity of the adhesive layer due to electrostatic adsorption of dust, and has poor corrosion resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing an etching protection film, can improve corrosion resisting property, prevent static effect and adhesive property, can solve because the static adsorbs the dust and causes the problem of the viscidity variation of glue film.

The purpose of the utility model is realized through the following technical scheme:

an etching protection film comprising a film body, the film body comprising:

the corrosion-resistant composite layer comprises a PTFE layer, an FEP layer, a PCTFE layer and a PVC layer, wherein the FEP layer is arranged on one side surface of the PTFE layer, the PCTFE layer is arranged on one side surface, away from the PTFE layer, of the FEP layer, the PVC layer is arranged on one side surface, away from the FEP layer, of the PCTFE layer, and a plurality of spaced bonding protrusions are arranged on one side surface, away from the PCTFE layer, of the PVC layer;

the anti-static layer is arranged on one side surface, away from the PCTFE layer, of the PVC layer, and the anti-static layer is arranged on one side surface, away from the PVC layer, of the bonding boss; and

the anti-static glue layer is arranged on the side face, away from the PVC layer, of the anti-static layer, and a plurality of spaced anti-static particles are arranged in the anti-static glue layer.

In one embodiment, the film body further comprises a waterproof layer disposed on a side of the PTFE layer remote from the FEP layer.

In one embodiment, the waterproof layer includes a waterproof film layer and a waterproof adhesive layer, the waterproof adhesive layer is disposed on the PTFE layer away from a side of the FEP layer, and the waterproof film layer is disposed on the waterproof adhesive layer away from a side of the PTFE layer.

In one embodiment, the waterproof film layer is a PE layer, a PP layer, or a PS layer.

In one embodiment, the film main body further comprises a release film layer disposed on a side of the anti-static adhesive layer away from the anti-static layer.

In one embodiment, a plurality of spaced friction bumps are disposed on a side of the release film layer away from the anti-static adhesive layer.

In one embodiment, the film body has a plurality of spaced tear holes formed therethrough, the plurality of tear holes collectively forming a tear line structure.

In one of them embodiment, the corrosion-resistant composite layer still includes first viscose layer, second viscose layer and third viscose layer, first viscose layer set up in the PTFE layer with between the FEP layer, the second viscose layer set up in the FEP layer with between the PCTFE layer, the third viscose layer set up in the PCTFE layer with between the PVC layer.

In one embodiment, the antistatic adhesive layer has an antistatic value of 10 ⁹ ～10 ¹¹ Omega, the adhesive strength is more than 100g/25 mm.

In one embodiment, the etching protection film further includes two reinforcing strips disposed at both sides of the film body, respectively.

Compared with the prior art, the utility model discloses at least, following advantage has:

the corrosion-resistant composite layer composed of the PTFE layer, the FEP layer, the PCTFE layer and the PVC layer can improve the corrosion resistance of the protective film; the bonding effect between the PVC layer and the anti-static layer can be improved and the bonding effect between the anti-static layer and the anti-static adhesive layer can be improved by arranging the plurality of bonding convex parts on one side surface of the PVC layer; through being provided with antistatic backing and antistatic adhesive layer, be provided with a plurality of antistatic particles in the antistatic adhesive layer, can improve the antistatic effect of protection film, can avoid causing the problem of the viscidity variation of antistatic adhesive layer because static adsorbs the dust to improve the viscidity and the persistence of antistatic adhesive layer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a film main body of an etching protection film according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an etching protection film according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In one embodiment, referring to fig. 1 and 2, an etching protection film 10 includes a film body 110, wherein the film body 110 includes a corrosion-resistant composite layer 112, an anti-static layer 113, and an anti-static glue layer 114. The corrosion-resistant composite layer 112 comprises a PTFE layer 1121, an FEP layer 1123, a PCTFE layer 1125 and a PVC layer 1127, the FEP layer 1123 being disposed on a side of the PTFE layer 1121, the PCTFE layer 1125 being disposed on a side of the FEP layer 1123 remote from the PTFE layer 1121, the PVC layer 1127 being disposed on a side of the PCTFE layer 1125 remote from the FEP layer 1123, a side of the PVC layer 1127 remote from the PCTFE layer 1125 being provided with a plurality of spaced apart bonding protrusions. The antistatic layer 113 is disposed on a side of the PVC layer 1127 away from the PCTFE layer 1125, and the antistatic layer 113 is disposed on a side of the bonding protrusions away from the PVC layer 1127. The anti-static glue layer 114 is disposed on a side of the anti-static layer 113 away from the PVC layer 1127, and a plurality of spaced anti-static particles are disposed in the anti-static glue layer 114.

The PTFE layer 1121 is made of PTFE, and has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-stick property, electrical insulation property, and good anti-aging endurance. The FEP layer 1123 is a fluoroethylene propylene copolymer material, has excellent chemical inertness and weather resistance, good processing performance and flame retardance. The PCTFE layer 1125 is a polychlorotrifluoroethylene material having excellent chemical inertness and excellent gas barrier properties. The PVC layer 1127 is made of polyvinyl chloride material, has excellent mechanical strength, weather resistance and flame retardance, has stable physical and chemical properties and has certain chemical corrosion resistance. The antistatic layer 113 is formed by coating antistatic liquid and has good antistatic performance. The corrosion-resistant composite layer 112 consisting of the PTFE layer 1121, the FEP layer 1123, the PCTFE layer 1125 and the PVC layer 1127 can improve the corrosion resistance of the protective film; the bonding effect between the PVC layer 1127 and the anti-static layer 113 can be improved and the bonding effect between the anti-static layer 113 and the anti-static glue layer 114 can be improved by arranging the plurality of bonding convex parts on one side surface of the PVC layer 1127; through being provided with antistatic backing 113 and antistatic adhesive layer 114, be provided with a plurality of antistatic particles in the antistatic adhesive layer 114, can improve the antistatic effect of protection film, can avoid causing the problem of antistatic adhesive layer 114's viscidity variation because static adsorbs the dust to improve antistatic adhesive layer 114's viscidity and persistence.

Further, the anti-static adhesive layer 114 is an acrylic adhesive layer. Further, the antistatic adhesive layer 114 has an antistatic value of 10 ⁹ ～10 ¹¹ Omega, the adhesive strength is more than 100g/25 mm. The acrylic glue is convenient to operate, high in bonding strength, and excellent in water resistance, heat resistance, cold resistance, aging resistance, acid and alkali resistance, corrosion resistance and the like.

Further, the corrosion-resistant composite layer 112 further includes a first adhesive layer 1122, a second adhesive layer 1124 and a third adhesive layer 1126, the first adhesive layer 1122 is disposed between the PTFE layer 1121 and the FEP layer 1123, the second adhesive layer 1124 is disposed between the FEP layer 1123 and the PCTFE layer 1125, and the third adhesive layer 1126 is disposed between the PCTFE layer 1125 and the PVC layer 1127. This improves the adhesion and composite between the PTFE layer 1121, the FEP layer 1123, the PCTFE layer 1125, and the PVC layer 1127.

Further, the film main body 110 further includes a waterproof layer 111, and the waterproof layer 111 is disposed on a side of the PTFE layer 1121 away from the FEP layer 1123. This can improve the water resistance of the protective film.

Further, the waterproof layer 111 includes a waterproof film layer 1111 and a waterproof glue layer 1112, the waterproof glue layer 1112 is disposed on a side of the PTFE layer 1121 away from the FEP layer 1123, and the waterproof film layer 1111 is disposed on a side of the waterproof glue layer 1112 away from the PTFE layer 1121. Thus, the adhesion effect between the waterproof film layer 1111 and the PTFE layer 1121 can be improved, and the waterproof performance of the protective film can be improved.

Further, the waterproof film layer 1111 is a PE layer, a PP layer or a PS layer. This can improve the water resistance of the protective film. The PE layer is made of polyethylene material, the PP layer is made of polypropylene material, and the PS layer is made of polystyrene material, so that the waterproof performance is good.

Further, the film main body 110 further includes a release film layer 115, and the release film layer 115 is disposed on a side of the anti-static adhesive layer 114 away from the anti-static layer 113. Thus, the antistatic adhesive layer 114 can be isolated, prevented from sticking and polluted, and the bonding performance and durability of the antistatic adhesive layer are improved.

Further, a plurality of spaced friction bumps are disposed on a side of the release film layer 115 away from the anti-static adhesive layer 114. This can improve the adhesion between the antistatic adhesive layer 114 and the release film layer 115.

Further, referring to fig. 2, a plurality of spaced tear holes 116 are formed through the film body 110, and the tear holes 116 together form a tear line structure. Thus, the tearing line structure penetrating through the film main body 110 can facilitate the protective film to be easily torn and broken when in use, thereby effectively improving the use efficiency.

Further, referring to fig. 2, the etching protection film 10 further includes two reinforcing strips 120, and the two reinforcing strips 120 are respectively disposed on two sides of the film body 110. In this way, the film main body 110 is attached to one side surface of the article, and the two reinforcing tapes 120 are bent and attached to the opposite side surface of the article, thereby improving the adhesion effect of the etching protective film 10 to the article.

Further, the material layer structure of the reinforcing strip 120 is the same as that of the film body 110, and thus, the description thereof is omitted.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An etching protection film comprising a film main body, characterized in that the film main body comprises:

2. The etching protective film according to claim 1, wherein the film main body further comprises a water-repellent layer provided on a side of the PTFE layer remote from the FEP layer.

3. The etching protection film according to claim 2, wherein the waterproof layer includes a waterproof film layer and a waterproof adhesive layer, the waterproof adhesive layer is provided on a side of the PTFE layer remote from the FEP layer, and the waterproof film layer is provided on a side of the waterproof adhesive layer remote from the PTFE layer.

4. The etching protective film according to claim 3, wherein the water-repellent film layer is a PE layer, a PP layer, or a PS layer.

5. The etching protection film of claim 1, wherein the film body further comprises a release film layer disposed on a side of the anti-static glue layer away from the anti-static layer.

6. The etching protection film of claim 5, wherein a side of the release film layer away from the anti-static glue layer is provided with a plurality of spaced friction bumps.

7. The etching protection film according to claim 1, wherein a plurality of spaced tear holes are formed through the film main body, and the tear holes together constitute a tear line structure.

8. The etching protection film of claim 1, wherein the corrosion-resistant composite layer further comprises a first adhesive layer, a second adhesive layer and a third adhesive layer, the first adhesive layer is disposed between the PTFE layer and the FEP layer, the second adhesive layer is disposed between the FEP layer and the PCTFE layer, and the third adhesive layer is disposed between the PCTFE layer and the PVC layer.

9. The etching protective film according to claim 1, wherein the antistatic adhesive layer has an antistatic value of 10 ⁹ ～10 ¹¹ Omega, the adhesive strength is more than 100g/25 mm.

10. The etching protective film according to any one of claims 1 to 9, further comprising two reinforcing strips, the two reinforcing strips being disposed on both sides of the film main body.