A preservative film

Abstract

This utility model discloses a food preservation film, relating to the field of films. The key technical points are: it includes a film body comprising two structural layers, with a tear strip sandwiched and fixed between the two structural layers. The tear strip has several break grooves. Opening grooves are formed on both sides of the film body, with a distance between the opening grooves and one end of the tear strip. When multiple pieces of the film body need to be torn off at once, because there are no gaps at the positions of the structural layers where the tear strips are located, and the opening grooves are subsequently stretched and adhered to the edge of the bowl, the preservation effect of the film is not easily affected. The distance between both ends of the tear strips and the sides of the film body allows the film to be stretched at the distances without being affected by the tear strips. The PE material has good barrier properties, ensuring the freshness of the food.

Description

Technical Field

[0001] This utility model relates to the field of films, and more specifically, to a food preservation film. Background Technology

[0002] Plastic wrap (also known as food preservation film) is a thin plastic film used to wrap and cover food. Its main function is to isolate the food from air, moisture and bacteria, thereby extending the food's shelf life.

[0003] Plastic wrap is usually sold in rolls. To facilitate cutting, it has several cutting lines arranged in a linear array along its length. Tearing along these lines makes it easy to use. These cutting lines consist of several grooves that penetrate the wrap. However, during use, a single piece of plastic wrap may not be large enough, leading to the need to tear off multiple pieces at once. The cutting lines also allow air to pass through the grooves, affecting the wrap's preservation effect.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a food preservation film.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a preservation film, comprising a film body, the film body comprising two structural layers, a plurality of tear strips being sandwiched and fixed between the two structural layers, the plurality of tear strips being linearly arrayed along the length direction of the film body, the distance between any two adjacent tear strips being equal, the length of the tear strips being less than the width of the film body, a plurality of break grooves being formed on the tear strips, and opening grooves being formed on both sides of the film body, the opening grooves being located on the same straight line as the tear strips, and a distance being between the opening grooves and one end of the tear strips.

[0007] The present invention is further configured such that: a groove is printed on one side of the structural layer, and the groove is located at the opening groove position.

[0008] The present invention is further configured such that the bottom of the pressure groove has several concave points.

[0009] The present invention is further configured such that the thickness of both structural layers is less than the thickness of the paper strip.

[0010] The present invention is further configured such that: a guide groove is provided on one side of the paper strip, and all the break point grooves are located at the bottom of the guide groove.

[0011] The present invention is further configured such that both structural layers are made of PE.

[0012] In summary, this utility model has the following beneficial effects: When people need to take out the plastic wrap, first tear the opening groove. The tear strip is made of wood pulp paper. Due to its low elongation and fiber structure, wood pulp paper is more likely to expand the crack quickly after the initial tear. The pre-cut grooves on the tear strip form stress concentration points, which makes the film body easy to separate along the cutting line path, thus completing the division of the film body. When multiple pieces of the film body need to be torn off at once, the structural layer has no gaps at the position of the tear strip, and the opening groove is to be stretched and attached to the edge of the bowl later. Therefore, it is not easy to affect the preservation effect of the plastic wrap. Both ends of the tear strip have gaps with the sides of the film body, so that the film can be stretched at the gap position without being affected by the tear strip. This allows the edge of the film piece to still be stretched and thus attached to the edge of the bowl. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the present invention.

[0014] In the diagram: 1. Structural layer; 2. Tear strip; 3. Break groove; 4. Opening groove; 5. Pressing groove; 6. Concave point; 7. Guide groove. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] A type of food preservation film, such as Figure 1 , Figure 2 and Figure 3As shown, the film includes a main body, which comprises two structural layers 1. Several paper strips 2 are clamped and fixed between the two structural layers 1. The length direction of the paper strips 2 is along the width direction of the main body. The paper strips 2 are arranged in a linear array along the length direction of the main body, with equal distance between any two adjacent paper strips 2. The length of each paper strip 2 is less than the width of the main body. Several break grooves 3 are formed on each paper strip 2, creating a cutting line. Opening grooves 4 are formed on both sides of the main body, and these opening grooves 4 are located on the same straight line as the paper strips 2. There is a distance between the groove 4 and one end of the tear strip 2. When people need to take out the plastic wrap, they first tear the groove 4. The tear strip 2 is made of wood pulp paper. Due to its low elongation and fiber structure, wood pulp paper is more likely to expand the crack quickly after the initial tear. The pre-cut groove 3 on the tear strip 2 forms stress concentration points, which makes the film body easy to separate along the cutting line path, thus completing the division of the film body. The thickness of both structural layers 1 is less than the thickness of the tear strip 2, so that the tearing process is guided by the splitting of the tear strip 2, which facilitates the division of the film body.

[0017] like Figure 1 and Figure 2 As shown, when multiple pieces of the film body need to be torn off at once, because there is no gap at the position of the tear strip 2 in the structural layer 1, and the opening groove 4 is to be stretched and adhered to the edge of the bowl later, it is not easy to affect the preservation effect of the plastic wrap. Both ends of the tear strip 2 have gaps with the sides of the film body, so that the film body can be stretched at the gaps without being affected by the tear strip 2, and the edge of the film piece can still be stretched to adhere to the edge of the bowl. A groove 5 is printed on one side of the structural layer 1, and the groove 5 is located at the opening groove 4. The groove 5 is formed by printing, so that the structure of the film body at the opening groove 4 is more... The groove 5 is made denser, and the bottom of the groove has several concave points 6, which increases the coefficient of friction at the groove 5 position, thus facilitating stretching at this position and making it easier to tear the opening groove 4. Furthermore, there is still a distance between one end of the tear strip 2 and the opening groove 4, which can be stretched to fit the edge of the bowl. A guide groove 7 is provided on one side of the tear strip 2, and all the break grooves 3 are located at the bottom of the guide groove 7. The guide groove 7 provides guidance for tearing the tear strip 2 located at the adjacent break groove 3 position, making it easier to tear the film body. Both structural layers 1 are made of PE. PE material has good barrier properties and can ensure the freshness of food.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A preservative film, characterized by: The film body includes two structural layers (1), and several paper strips (2) are clamped and fixed between the two structural layers (1). The several paper strips (2) are arranged in a linear array along the length of the film body. The distance between any two adjacent paper strips (2) is equal. The length of the paper strips (2) is less than the width of the film body. Several break grooves (3) are provided on the paper strips (2). Opening grooves (4) are provided on both sides of the film body. The opening grooves (4) and the paper strips (2) are located on the same straight line. There is a distance between the opening grooves (4) and one end of the paper strips (2).

2. The preservative film according to claim 1, wherein: A groove (5) is printed on one side of the structural layer (1), and the groove (5) is located at the position of the opening groove (4).

3. The preservative film according to claim 2, wherein: The bottom of the pressure groove (5) has several recesses (6).

4. The preservative film according to claim 1, wherein: The thickness of both structural layers (1) is less than the thickness of the paper strip (2).

5. The preservative film according to claim 1, wherein: A guide groove (7) is provided on one side of the paper tear strip (2), and all the break point grooves (3) are located at the bottom of the guide groove (7).

6. The preservative film according to claim 1, wherein: Both structural layers (1) are made of PE.

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