Film for food

Abstract

The utility model discloses a thin film for food, which relates to the field of thin films, and has the technical scheme that the thin film comprises a plurality of sections, adjacent sections are divided by tooth lines, any section is provided with a round sheet, the round sheet and the sections are divided by the tooth lines, a plurality of extension sections are integrally formed at the edge of the round sheet, and the extension sections and the sections are divided by the tooth lines. The contact area of the film and a food container is increased through the extension sections, so that the connection strength of the film and the container is improved, the sealing effect of the film is guaranteed, the polypropylene film has the advantages of being light in weight, non-toxic, odorless, moisture-proof and the like, the drawing force borne by the wafer is more uniform through the two extension sections, wrinkles are further reduced, and the service life of the film is prolonged. Meanwhile, the material utilization rate is ensured.

Description

Technical Field

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

[0002] Food-grade films are widely used in the food packaging industry, especially for sealing food containers (such as bowls, cups, and jars) to maintain food freshness and prevent leakage or contamination. To improve the ease of sealing, existing food-grade films usually have serrated lines pre-pressed on the surface, dividing it into several circular areas so that users can tear off the appropriate size of film along the serrations to seal the container.

[0003] However, when the diameter of the container opening to be sealed is large, due to the limited total size of the film, the edge allowance of the circular area after sealing (i.e. the part that extends beyond the edge of the container opening) is small, resulting in insufficient adhesion area between the film and the container, weak sealing, and easy detachment during transportation or use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a film for food use.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a food film comprising several segments, adjacent segments being separated by serrations, each segment having a circular piece, the circular piece being separated from the segment by serrations, and the edge of the circular piece having several extension segments integrally formed thereon, the extension segments being separated from the segments by serrations.

[0006] The present invention is further configured such that the extension segments are arranged in groups of two, with each group of extension segments located on opposite sides of the circular plate.

[0007] The present invention is further configured such that: the number of the extension segments is four, and the extension segments are arranged in a circumferential array at the edge of the circular piece.

[0008] The present invention is further configured such that the extended segments are all located on the diagonal of the segments.

[0009] The present invention is further configured such that: both sides of the segment are fixedly connected with reinforcing strips, and adjacent reinforcing strips are divided by toothed lines.

[0010] The present invention is further configured such that both the segments and the discs are made of polypropylene.

[0011] In summary, this utility model has the following beneficial effects: by extending the film to increase the contact area between the film and the food container, the connection strength between the film and the container is improved, ensuring the sealing effect of the film. The polypropylene film has the advantages of being lightweight, non-toxic, odorless, and moisture-proof. The two sets of extension sections make the tensile force on the disc more uniform, further reducing wrinkles, while ensuring the material utilization rate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Segment; 2. Circular piece; 3. Extension segment; 4. Reinforcing strip. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] Example: A food-grade film, such as Figure 1 As shown, it includes several segments 1, which are separated by toothed lines. Each segment 1 has a circular piece 2, which is separated from the segment 1 by toothed lines. Several extension segments 3 are integrally formed at the edge of the circular piece 2, which are separated from the segment 1 by toothed lines. Both the segment 1 and the circular piece 2 are made of polypropylene. Reinforcing strips 4 are fixedly connected to both sides of the segment 1, and adjacent reinforcing strips 4 are separated by toothed lines.

[0016] Specifically, polypropylene granules are co-extruded into sheets, which are then stretched in both longitudinal and transverse directions to form a long strip film. Finally, the film is divided into segments 1, discs 2, and extension segments 3 by pre-pressing serrations. The polypropylene film has advantages such as being lightweight, non-toxic, odorless, and moisture-proof. The extension segment 3 and discs 2 are an integral structure without serrations. When the discs 2 have a small margin at the edge after sealing, the extension segment 3 increases the contact area between the film and the food container, thereby improving the connection strength between the film and the container and ensuring the sealing effect of the film. In this embodiment, the reinforcing strip 4 is specifically a PET reinforcing layer attached to the edge of the long strip film. During the pre-pressing serrations, the reinforcing strip 4 is also divided into segments by the serrations along with the segments 1. The PET material has good dimensional stability, which improves the dimensional stability of a single segment 1 and prevents the segment 1 from breaking between the two parallel serrations when it is used.

[0017] like Figure 1As shown, the extension segments 3 are arranged in groups of two, with each group of extension segments 3 located on opposite sides of the disc 2. There are four extension segments 3 arranged in a circular array around the edge of the disc 2. The extension segments 3 are all located on the diagonal of the segment 1, specifically at the four apex corners of the segment 1. This utilizes the portion that would otherwise be discarded after using the disc 2, improving material utilization. At the same time, it shortens the distance between two adjacent discs 2, i.e., shortens the length of a single segment 1, increasing the density of the disc 2 per unit length. The extension segments 3 positioned on opposite sides of the disc 2 ensure that the disc 2 is tightened, reducing wrinkles in the film after sealing. The two groups of extension segments 3 make the tensile force on the disc 2 more uniform, further reducing wrinkles while ensuring material utilization.

[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 food film comprising a plurality of segments (1), adjacent segments (1) being separated by serrated lines, wherein each of the segments (1) is provided with a circular piece (2), the circular piece (2) being separated from the segment (1) by serrated lines, characterized in that: The edge of the disc (2) is integrally formed with several extension segments (3), and the extension segments (3) are separated from the segments (1) by tooth lines.

2. The food-grade film according to claim 1, characterized in that: The extension segments (3) are arranged in groups of two, with each group of extension segments (3) located on opposite sides of the disc (2).

3. The food-grade film according to claim 2, characterized in that: The number of the extension segments (3) is four, and the extension segments (3) are arranged in a circular array on the edge of the disc (2).

4. The food-grade film according to claim 1, characterized in that: The extension segments (3) are all located on the diagonal of the segment (1).

5. The food-grade film according to claim 1, characterized in that: Both sides of the segment (1) are fixedly connected with reinforcing strips (4), and adjacent reinforcing strips (4) are divided by toothed lines.

6. The food-grade film according to claim 1, characterized in that: Both the segment (1) and the disc (2) are made of polypropylene.

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