Easily torn composite blown film

Abstract

The utility model relates to an easy-to-tear composite blown film which comprises a base film and two layers of composite films, the two layers of composite films are respectively arranged on the upper side and the lower side of the base film, a plurality of tearing groove holes are formed in the middle of the top side of each composite film, edge tearing grooves are formed in the edge long sides of the composite films, the edge tearing grooves are arranged in a triangular shape, and the tearing groove holes are formed in the edge long sides of the composite films. And a connecting paste is arranged on one side, far away from the base film, of the composite film and located at the edge tearing groove. The utility model relates to the technical field of composite blown films easy to tear. According to the composite blown film easy to tear, when the composite blown film easy to tear is used, the connecting paste can be pasted at the edge tearing groove, then the two side walls of the edge tearing groove can be fixed, and therefore it is guaranteed that the situation that the composite blown film is torn by mistake due to pulling of external factors, and then use of the composite blown film is affected is avoided; and meanwhile, the tearing efficiency of the composite blown film is improved through the cooperation of the edge tearing grooves and the tearing groove holes.

Description

Technical Field

[0001] The utility model relates to the technical field of easily torn composite blown films, in particular to an easily torn composite blown film. Background Art

[0002] A blown film refers to a plastic film formed by blow molding. The manufacturing process is to melt and plasticize the raw materials by an extruder to form a thin-walled tube, and then blow it up to the required thickness through a traction device and compressed air, and then cool and shape it into a plastic film.

[0003] In the prior art, as disclosed in a kind of easily torn composite blown film with the publication number CN219486800U, which includes a film body, and composite films are respectively arranged on both sides of the film body; along the width direction of the blown film, a plurality of main tearing holes arranged in a straight line are arranged on the film body, and a plurality of secondary tearing holes arranged in a straight line are arranged on the composite film, and the main tearing holes and the secondary tearing holes are arranged at intervals. With the above structure, when tearing the blown film, since the blown film includes a film body and a composite film, under the action of the main tearing holes and the secondary tearing holes arranged on the film body, the blown film can be smoothly torn apart, and the torn part of the blown film is more neat, so as to improve the aesthetics of the torn part; and when the main tearing holes and the secondary tearing holes are arranged at intervals, the thickness of the torn part of the film body and the composite film can be reduced, making the blown film easier to tear apart.

[0004] This application mainly facilitates the tearing of the composite blown film through the cooperation of the main tearing holes and the secondary tearing holes. However, when the blown film is not in use, if it is pulled by an external force, it is easy to be accidentally torn, resulting in multiple sections of the composite blown film being torn at other positions, thus affecting the use of the composite blown film. Summary of the Utility Model

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an easily torn composite blown film to solve the technical problems mentioned in the above background art.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] An easily torn composite blown film, including a base film and two composite films, the two composite films are respectively arranged on the upper and lower sides of the base film, a plurality of tearing groove holes are arranged in the middle of the top side of the composite film, an edge tearing groove is arranged on the side length side of the composite film, the edge tearing groove is triangularly arranged, a connecting sticker is arranged at the edge tearing groove on the side of the composite film away from the base film, and a separation groove is arranged at the tearing groove hole on the top side of the base film.

[0008] In a preferred example, the present utility model can be further configured such that: there is a gap between the edge tearing groove and the tearing groove hole.

[0009] In a preferred example, the present utility model can be further configured such that: the connecting sticker is composed of a protective sticker and an adhesive layer, and there is a gap between the end side of the adhesive layer and the end side close to the protective sticker.

[0010] In a preferred example, the present utility model can be further configured such that: the side wall of the edge tearing groove on the side away from the base film is inclined.

[0011] In a preferred example, the present utility model can be further configured such that: the edge tearing groove is flared in the direction away from the tearing groove hole.

[0012] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0013] 1. For this easily tearable composite blown film, during use, the connecting sticker can be attached at the edge tearing groove, and then the two side walls of the edge tearing groove can be fixed, thus ensuring that the composite blown film is not accidentally torn due to the pulling of external factors, which would otherwise affect the use of the composite blown film. At the same time, the tearing efficiency of the composite blown film is improved through the cooperation of the edge tearing groove and the tearing groove hole;

[0014] 2. For this easily tearable composite blown film, the provided adhesive layer is used to connect the positions at the tops of the two inner side walls of the edge tearing groove, thus avoiding the effect of the edge tearing groove opening and accidentally tearing. In addition, there is a gap between the end side of the provided adhesive layer and the end side close to the protective sticker, which facilitates directly pulling up the end side of the protective sticker to tear the adhesive layer, avoiding the situation where the entire protective sticker sticks to the adhesive layer and the adhesive layer sticks to the composite film, resulting in the need to manually buckle multiple times and causing the composite film to be buckled and damaged;

[0015] 3. For this easily tearable composite blown film, the side wall of the edge tearing groove on the side away from the base film is inclined, avoiding the connecting sticker sticking to the top of the side wall of the flat wire groove and thus tearing the composite film, which would affect the quality of the composite blown film;

[0016] 4. For this easily tearable composite blown film, the side of the edge tearing groove away from the tearing groove hole is flared, enabling the composite blown film to be directly torn at the flared position conveniently, thus improving the tearing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of an easily tearable composite blown film of the present utility model.

[0019] Figure 2 This is a schematic diagram of the composite film structure of an easily tearable composite blown film of the present utility model.

[0020] Figure 3 For the present utility model Figure 2 This is an enlarged schematic diagram of the structure at position A.

[0021] Figure 4 This is a schematic diagram of the base film structure of an easily tearable composite blown film of the present utility model.

[0022] Figure 5 This is a schematic diagram of the separation structure of the connection sticker of an easily tearable composite blown film of the present utility model.

[0023] Figure 6 For the present utility model Figure 5 This is an enlarged schematic diagram of the structure at position B.

[0024] In the figure, 1 is the base film; 2 is the composite film; 3 is the tear slot hole; 4 is the edge tear slot; 5 is the connection sticker; 6 is the separation slot; 7 is the protective sticker; 8 is the adhesive layer. Specific implementation manners

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment:

[0027] Referring to Figures 1-6 , an easily tearable composite blown film disclosed by the present utility model includes a base film 1 and two layers of composite films 2. The two layers of composite films 2 are respectively arranged on the upper and lower sides of the base film 1. A number of tear slot holes 3 are formed in the middle of the top side of the composite film 2. An edge tear slot 4 is formed on the long side of the composite film 2. The edge tear slot 4 is triangularly arranged. A connection sticker 5 is arranged at the edge tear slot 4 on the side of the composite film 2 away from the base film 1. A separation slot 6 is formed in the top side of the base film 1 at the position of the tear slot hole 3.

[0028] In this embodiment, when the composite blown film is not in use, the edge tear groove 4 can be sealed by the provided connecting sticker 5. The connecting sticker 5 will adhere to the tops of the two side walls of the edge tear groove 4, so that the two side walls of the edge tear groove 4 are fixed, preventing them from separating to both sides, thus tearing the composite film 2, and further causing the base film 1 to be torn. This avoids the accidental tearing of the composite blown film from the edge tear groove 4 due to external factors. When it is necessary to tear the composite blown film, at this time, the connecting sticker 5 is torn off, and then the composite blown film is pulled to both sides along the position of the edge tear groove 4, so as to be torn by the edge tear groove 4. Subsequently, the composite film 2 is gradually torn and separated through a plurality of tear holes 3. The provided separation groove 6 is in a separated state from the base film 1 initially, which facilitates the overall tearing of the composite blown film and improves the convenience of tearing the composite blown film.

[0029] In a further preferred embodiment of the present utility model, as Figure 6 shown, there is a gap between the edge tear groove 4 and the tear hole 3.

[0030] In this embodiment, a gap is provided between the edge tear groove 4 and the tear hole 3 to avoid expanding the initial hole, thus preventing wrinkles from occurring after being squeezed, and further affecting the quality of the composite blown film.

[0031] In a further preferred embodiment of the present utility model, as Figure 6 shown, the connecting sticker 5 is composed of a protective sticker 7 and an adhesive layer 8, and there is a gap between the end side of the adhesive layer 8 and the end side close to the protective sticker 7.

[0032] In this embodiment, the provided adhesive layer 8 is used to connect the positions of the tops of the two inner side walls of the edge tear groove 4, so as to avoid the effect of the edge tear groove 4 opening and being accidentally torn. In addition, a gap is provided between the end side of the adhesive layer 8 and the end side close to the protective sticker 7, which facilitates directly pulling up the end side of the protective sticker 7, thus tearing the adhesive layer 8, and avoiding the situation that the entire protective sticker 7 adheres to the adhesive layer 8, while the adhesive layer 8 adheres to the composite film 2, resulting in the need to manually buckle multiple times and causing the composite film 2 to be buckled and damaged.

[0033] In a further preferred embodiment of the present utility model, as Figure 6 shown, the side wall of the edge tear groove 4 away from the base film 1 is inclined.

[0034] In this embodiment, the side wall of the edge tear groove 4 away from the base film 1 is inclined, avoiding the connecting sticker 5 adhering to the top of the side wall of the flat wire groove, thus tearing the composite film 2 and affecting the quality of the composite blown film.

[0035] In a further preferred embodiment of the present utility model, as Figure 6 shown, the edge tear groove 4 is flared in the direction away from the tear hole 3.

[0036] In this embodiment, the side of the edge tearing groove 4 away from the tearing hole 3 is flared, so that the composite blown film can be directly torn at a position where the flaring is convenient, improving the efficiency during tearing.

[0037] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An easily tearable composite blown film, comprising a base film (1) and two composite films (2), wherein the two composite films (2) are respectively disposed on the upper and lower sides of the base film (1), and is characterized in that, A number of tear slots (3) are provided in the middle of the top side of the composite film (2). An edge tear slot (4) is provided on the side of the composite film (2). The edge tear slot (4) is triangularly arranged. A connecting sticker (5) is provided at the position of the edge tear slot (4) on the side of the composite film (2) away from the base film (1). A separation slot (6) is provided at the position of the tear slot (3) on the top side of the base film (1).

2. The easy-to-tear composite blow-molded film according to claim 1, characterized in that, A gap is left between the edge tear slot (4) and the tear slot (3).

3. The easy-to-tear composite blow-molded film according to claim 1, wherein, The connecting sticker (5) is composed of a protective sticker (7) and an adhesive layer (8). A gap is left between the end side of the adhesive layer (8) and the end side close to the protective sticker (7).

4. The easy-to-tear composite blow-molded film according to claim 1, wherein, The side wall of the edge tear slot (4) on the side away from the base film (1) is inclined.

5. A tearable composite blow-molded film according to claim 1, wherein The edge tear slot (4) is flared in the direction away from the tear slot (3).

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