Conductive polyethylene bubble film

Abstract

The utility model discloses a kind of electrically conductive polyethylene bubble films, belong to bubble film field, comprising: polyethylene base film;Two first conductive layers respectively located at the two sides of polyethylene base film, first conductive layer includes sequentially connected first protective film, composite conductive film and second protective film, and first protective film is connected with polyethylene base film;Two bubble film units, bubble film unit includes the first bubble and the second bubble of a plurality of first bubble and a plurality of second bubble of staggered arrangement, the volume of first bubble is greater than the volume of second bubble, and first bubble and second bubble are connected with second protective film. The internal air pressure of first bubble and second bubble is equal, and the wall thickness of first bubble is less than the wall thickness of second bubble. The shape of first bubble and second bubble is all hemispherical. The technical effect of the utility model is that it not only has good conductivity, but also has a large buffering range.

Description

Technical Field

[0001] This utility model relates to bubble wrap, and more particularly to a conductive polyethylene bubble wrap. Background Technology

[0002] Bubble wrap is a type of packaging film containing air bubbles, made from materials such as polyethylene, and is widely used in the packaging of goods.

[0003] However, the poor conductivity of the bubble wrap makes it prone to poor antistatic properties. In addition, the small buffer range of the bubble wrap makes it prone to poor buffering performance. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a conductive polyethylene bubble film that not only has good conductivity but also a large buffer range.

[0005] Technical solution: A conductive polyethylene bubble film, comprising: Polyethylene-based film; Two first conductive layers are respectively located on both sides of the polyethylene base film. The first conductive layer includes a first protective film, a composite conductive film and a second protective film connected in sequence. The first protective film is connected to the polyethylene base film. Two bubble film units, each bubble film unit comprising a plurality of first bubbles and a plurality of second bubbles arranged alternately, wherein the volume of the first bubbles is larger than the volume of the second bubbles, and both the first bubbles and the second bubbles are connected to the second protective film.

[0006] Optionally, the internal air pressure of the first bubble and the second bubble are equal, and the wall thickness of the first bubble is less than the wall thickness of the second bubble.

[0007] Optionally, both the first bubble and the second bubble are hemispherical in shape.

[0008] Optionally, the bubble film unit further includes: A first bubble film body, wherein the first bubble and the second bubble are both formed in the first bubble film body; A second bubble film body connected to the second protective film, the second bubble film body being connected to the first bubble film body, so that the second bubble film body seals the first bubble and the second bubble.

[0009] Optionally, it may also include two second conductive layers, which are connected between the second protective film and the second bubble film body.

[0010] Optionally, the connection between the second conductive layer and the second protective film can be achieved by vacuum sputtering, coating, or printing, and the connection between the second conductive layer and the second bubble film body can be achieved by heat sealing.

[0011] Optionally, it may also include two braided layers connected between the polyethylene base film and the first protective film.

[0012] Optionally, the material of the woven layer is polylactic acid fiber.

[0013] Beneficial effects: (1) The composite conductive film is used to increase the conductivity. The material of the composite conductive film can be a composite polyethylene material containing conductive carbon black or metal powder. The first protective film and the second protective film are used to protect the composite conductive film, prevent the composite conductive film from being damaged, ensure the conductivity durability of the first conductive layer, and thus make the antistatic performance good. (2) Both the first bubble and the second bubble are used to increase the buffering performance. Since the volume of the first bubble is larger than that of the second bubble, when subjected to a small impact, the larger first bubble is triggered first and performs the buffering function. When subjected to a large impact, the smaller second bubble is triggered and performs the buffering function. This makes it easier to make the buffering range of the conductive polyethylene bubble film of this solution large, thereby ensuring good buffering performance. Attached Figure Description

[0014] Figure 1 This is one of the structural diagrams of the conductive polyethylene bubble film of Embodiment 1 of this utility model; Figure 2 This is the second structural diagram of the conductive polyethylene bubble film of Embodiment 1 of this utility model; In the figure: 1. Polyethylene base film; 21. First conductive layer; 210. Composite conductive film; 211. First protective film; 212. Second protective film; 22. Second conductive layer; 3. Bubble film unit; 31. First bubble film body; 311. First bubble; 312. Second bubble; 32. Second bubble film body; 4. Braided layer. Detailed Implementation

[0015] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0017] Example 1 like Figures 1-2 This embodiment provides a conductive polyethylene bubble film, comprising: a polyethylene base film 1; two first conductive layers 21 located on both sides of the polyethylene base film 1, each first conductive layer 21 comprising a first protective film 211, a composite conductive film 210, and a second protective film 212 connected in sequence, the first protective film 211 being connected to the polyethylene base film 1; and two bubble film units 3, each bubble film unit 3 comprising a plurality of first bubbles 311 and a plurality of second bubbles 312 arranged alternately, the volume of the first bubbles 311 being larger than the volume of the second bubbles 312, and both the first bubbles 311 and the second bubbles 312 being connected to the second protective film 212.

[0018] Specifically, the polyethylene base film 1 is used to support two first conductive layers 21; the two first conductive layers 21 and two bubble film units 3 not only facilitate the construction of a double-layered conductive polyethylene bubble film with good cushioning performance, but also ensure the ease of use of the conductive polyethylene bubble film, providing good cushioning, conductivity, and antistatic properties regardless of which side is used to wrap the item; the composite conductive film 210 is used to increase conductivity, and the material of the composite conductive film 210 can be a composite polyethylene material containing conductive carbon black or metal powder; the first protective film 211 and the second protective film 212 both serve to protect the composite conductive film 210, preventing the composite from... When the conductive film 210 is damaged, the conductivity and durability of the first conductive layer 21 are ensured, resulting in good antistatic performance. The materials of the first protective film 211 and the second protective film 212 are preferably polyethylene. The first bubble 311 and the second bubble 312 are used to increase the buffering performance. Since the volume of the first bubble 311 is larger than that of the second bubble 312, when subjected to a small impact, the larger first bubble 311 is triggered first and performs the buffering function. When subjected to a large impact, the smaller second bubble 312 is triggered and performs the buffering function. This makes it easier for the conductive polyethylene bubble film of this solution to have a large buffering range, thereby ensuring good buffering performance.

[0019] Furthermore, such as Figure 1 The internal air pressure of the first bubble 311 and the second bubble 312 are equal, and the wall thickness of the first bubble 311 is less than the wall thickness of the second bubble 312.

[0020] Specifically, this design ensures that, under conditions of equal internal air pressure, the first bubble 311 is relatively soft and the second bubble 312 is relatively hard. This allows the relatively soft first bubble 311 to provide good cushioning when subjected to a small impact, while the relatively hard second bubble 312 can still provide some cushioning when subjected to a large impact.

[0021] Furthermore, such as Figures 1-2 The first bubble 311 and the second bubble 312 are both hemispherical in shape.

[0022] Specifically, the hemispherical first bubble 311 and second bubble 312 not only facilitate processing but also improve the uniformity of force distribution.

[0023] Furthermore, such as Figure 1 The bubble film unit 3 further includes: a first bubble film body 31, in which a first bubble 311 and a second bubble 312 are both formed; and a second bubble film body 32 connected to a second protective film 212, wherein the second bubble film body 32 and the first bubble film body 31 are connected to each other so that the second bubble film body 32 seals the first bubble 311 and the second bubble 312.

[0024] Furthermore, such as Figure 1 It also includes two second conductive layers 22, which are connected between the second protective film 212 and the second bubble film body 32.

[0025] Specifically, the second conductive layer 22 is used to further increase conductivity, thereby increasing antistatic properties.

[0026] Furthermore, such as Figure 1 The connection between the second conductive layer 22 and the second protective film 212 is achieved by vacuum sputtering, coating or printing, and the connection between the second conductive layer 22 and the second bubble film body 32 is achieved by heat sealing.

[0027] Specifically, methods such as vacuum sputtering, coating, or printing can both ensure conductivity and flexibility. The material of the second conductive layer 22 can be metal (such as silver, copper, nickel) nanowires, conductive polymers (such as PEDOT:PSS) or carbon-based materials (such as graphene, carbon nanotubes).

[0028] Furthermore, such as Figure 1 It also includes two braided layers 4, which are connected between the polyethylene base film 1 and the first protective film 211.

[0029] Specifically, the woven layer 4 is used to increase overall strength.

[0030] Furthermore, such as Figure 1 The material of the woven layer 4 is polylactic acid fiber.

[0031] Specifically, polylactic acid fibers facilitate the good biodegradability and environmental performance of the woven layer 4.

[0032] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A conductive polyethylene bubble film, characterized in that, include: Polyethylene-based film (1); Two first conductive layers (21) are located on both sides of the polyethylene base film (1). The first conductive layer (21) includes a first protective film (211), a composite conductive film (210) and a second protective film (212) connected in sequence. The first protective film (211) is connected to the polyethylene base film (1). Two bubble film units (3) are provided. Each bubble film unit (3) includes a plurality of first bubbles (311) and a plurality of second bubbles (312) arranged in an alternating manner. The volume of the first bubbles (311) is larger than the volume of the second bubbles (312). Both the first bubbles (311) and the second bubbles (312) are connected to the second protective film (212).

2. The conductive polyethylene bubble film according to claim 1, characterized in that, The internal air pressure of the first bubble (311) and the second bubble (312) is equal, and the wall thickness of the first bubble (311) is less than the wall thickness of the second bubble (312).

3. The conductive polyethylene bubble film according to claim 1, characterized in that, Both the first bubble (311) and the second bubble (312) are hemispherical in shape.

4. A conductive polyethylene bubble film according to any one of claims 1-3, characterized in that, The bubble film unit (3) further includes: The first bubble film body (31) is formed on the first bubble film body (31), and the first bubble (311) and the second bubble (312) are both formed on the first bubble film body (31); A second bubble film body (32) is connected to the second protective film (212), and the second bubble film body (32) is connected to the first bubble film body (31) so that the second bubble film body (32) seals the first bubble (311) and the second bubble (312).

5. The conductive polyethylene bubble film according to claim 4, characterized in that, It also includes two second conductive layers (22), which are connected between the second protective film (212) and the second bubble film body (32).

6. The conductive polyethylene bubble film according to claim 5, characterized in that, The connection between the second conductive layer (22) and the second protective film (212) is achieved by vacuum sputtering, coating or printing, and the connection between the second conductive layer (22) and the second bubble film body (32) is achieved by heat sealing composite.

7. A conductive polyethylene bubble film according to any one of claims 1-3, characterized in that, It also includes two braided layers (4) connected between the polyethylene base film (1) and the first protective film (211).

8. The conductive polyethylene bubble film according to claim 7, characterized in that, The woven layer (4) is made of polylactic acid fiber.

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