Packaging film

Abstract

The utility model provides a packaging film, which relates to the technical field of packaging materials and comprises a base film which can be broken in sections so as to form a plurality of base film units; the first double-faced adhesive tape is arranged on the edge of the base film unit, one surface is adhered to the base film unit, and the other surface is adhered to the stripping film; the second double-faced adhesive tape is arranged on the edge of the other base film unit adjacent to the first double-faced adhesive tape, one surface of the second double-faced adhesive tape is adhered to the base film unit, and the other surface of the second double-faced adhesive tape is adhered to the stripping film; the front face of one end of the stripping film is attached to the first double-faced adhesive tape so as to be stripped from the surface of the first double-faced adhesive tape, and the back face of the other end of the stripping film is attached to the second double-faced adhesive tape so as to be fixedly bonded with the second double-faced adhesive tape. The packaging film bonding structure disclosed by the utility model is simple and efficient, convenient to operate and convenient for large-scale production.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, and particularly relates to a packaging film. Background Art

[0002] The packaging film provides protection for goods through its physical and chemical properties, preventing the goods from being damaged during transportation and storage. For example, the stretch wrapping film is forcibly stretched by a mechanical stretching device or manually to generate deformation stress, so as to wrap the goods tightly, which is convenient for transportation and storage. It has the characteristics of good stretching performance, tear resistance, high transparency and high shrinkage rate, and is widely used in the use scenarios of single-piece packaging of crops and food. In addition, high-barrier plastic packaging materials can also play the roles of preserving quality, freshness, flavor and extending the shelf life of food. Such materials have the shielding ability for small molecule gases, liquids, water vapor, flavors, etc., and are particularly suitable for food and medicine packaging. The barrier flexible packaging materials have developed rapidly due to their functionality, light weight and convenient processing and transportation. For the convenience of use, the ends of some packaging film products are provided with bonding structures to fix the tail of the packaging film after the rolling package is completed. However, the existing bonding structures of packaging films have defects such as complex structure, cumbersome operation and inconvenient production and processing. Therefore, how to design a simple and efficient bonding structure for packaging films has become an urgent technical problem to be solved. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies, and discloses a packaging film with a simple and efficient bonding structure, convenient operation and convenient large-scale production.

[0004] The first aspect of the utility model discloses a packaging film, comprising: a base film which can be disconnected in sections to form a plurality of base film units; a first double-sided adhesive disposed on the edge of the base film unit, with one side bonded to the base film unit and the other side adhered to a release film; a second double-sided adhesive disposed on the edge of another base film unit adjacent to the first double-sided adhesive, with one side bonded to the base film unit and the other side adhered to the release film; and a release film, the front surface of one end of the release film is adhered to the first double-sided adhesive for peeling from the surface of the first double-sided adhesive, and the back surface of the other end of the release film is adhered to the second double-sided adhesive for bonding and fixing with the second double-sided adhesive.

[0005] According to the packaging film disclosed by the utility model, preferably, a break structure is provided between the plurality of base film units for disconnecting the base film.

[0006] According to the packaging film disclosed by the utility model, preferably, the break structure is strip-shaped.

[0007] According to the packaging film disclosed by the present utility model, preferably, a 'one'-shaped flat mouth straight line is formed by pressing a serrated knife against the surface of the base film as a fracture structure.

[0008] According to the packaging film disclosed by the present utility model, preferably, the front side of the release film serves as the release surface and is provided with release glue.

[0009] According to the packaging film disclosed by the present utility model, preferably, the back side of the release film is the bonding surface for bonding and fixing.

[0010] According to the packaging film disclosed by the present utility model, preferably, the area of the first double-sided adhesive is larger than the area of the second double-sided adhesive.

[0011] According to the packaging film disclosed by the present utility model, preferably, the thickness of the first double-sided adhesive is less than the thickness of the second double-sided adhesive.

[0012] The beneficial effects of the present utility model at least include: a paste structure that is easy to peel can be formed without folding the base film, simplifying the bonding structure of the packaging film. Only two simple structures, namely double-sided adhesive and release film, need to be arranged on the basis of the base film to form a base film unit roll package seal that is easy to peel and paste, facilitating large-scale industrial production. By further reasonably arranging the area and thickness of the two double-sided adhesives, the peeling performance and bonding performance can be adjusted, meeting various operation scenarios and adapting to different objects to be packaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shows a schematic structural view of a packaging film according to an embodiment of the present utility model.

[0014] Figure 2 Shows a schematic structural view of a packaging film according to another embodiment of the present utility model.

[0015] Figure 3 Shows a schematic view of a fracture structure according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0017] Many specific details are set forth in the following description in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways different from those described herein, and thus, the present utility model is not limited to the limitations of the specific embodiments disclosed below.

[0018] Such as Figure 1As shown in the figure, a packaging film disclosed according to an embodiment of the present utility model includes: a base film 1, which can be segmented and disconnected to form a plurality of base film units; a first double-sided adhesive 2, disposed at the edge of the base film unit, with one side adhered to the base film unit and the other side adhered to a release film; a second double-sided adhesive 3, disposed at the edge of another adjacent base film unit, with one side adhered to the base film unit and the other side adhered to the release film; and a release film 4, with the front surface of one end of the release film adhered to the first double-sided adhesive for peeling from the surface of the first double-sided adhesive, and the back surface of the other end of the release film adhered to the second double-sided adhesive for bonding and fixing with the second double-sided adhesive.

[0019] As Figure 2 As shown in the figure, a packaging film disclosed according to another embodiment of the present utility model includes: a base film 1, which can be segmented and disconnected to form a plurality of base film units; a notch structure 5 is provided between the first base film unit 101 and the second base film unit 102 to disconnect the base film; a first double-sided adhesive 2, disposed at the edge of the base film unit, with one side adhered to the base film unit and the other side adhered to a release film; a second double-sided adhesive 3, disposed at the edge of another adjacent base film unit, with one side adhered to the base film unit and the other side adhered to the release film; and a release film 4, with the front surface of one end of the release film adhered to the first double-sided adhesive for peeling from the surface of the first double-sided adhesive, and the back surface of the other end of the release film adhered to the second double-sided adhesive for bonding and fixing with the second double-sided adhesive.

[0020] As Figure 3 As shown in the figure, according to the above embodiment, preferably, the notch structure 5 is strip-shaped.

[0021] According to the above embodiment, preferably, a 'one'-shaped flat mouth straight line is formed by pressing a serrated knife on the surface of the base film as the notch structure.

[0022] According to the above embodiment, preferably, the front surface of the release film is used as the peeling surface and is provided with a peeling adhesive; the back surface of the release film is the bonding surface for bonding and fixing.

[0023] According to the above embodiment, preferably, the area of the first double-sided adhesive is larger than the area of the second double-sided adhesive.

[0024] According to the above embodiment, preferably, the thickness of the first double-sided adhesive is smaller than the thickness of the second double-sided adhesive.

[0025] In summary, the packaging film provided by the present utility model has a release film structure that is easy to peel. As the base film unit is torn and disconnected, the release surface (front surface) of the release film is separated from the double-sided adhesive, exposing the sticky surface of the double-sided adhesive. The back surface of the release film after peeling can be bonded and fixed to the exposed surface of the double-sided adhesive of the base film unit to complete the self-sealing function of the base film unit. There is no need to fold or bend the base film unit to set the self-adhesive structure, which is convenient for production. By further reasonably arranging the areas and thicknesses of the two double-sided adhesives, the peeling performance and bonding performance can be adjusted, which can meet various operating scenarios and adapt to different packaged objects.

[0026] The foregoing is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A packaging film, characterized in that: include: A base film, wherein the base film can be broken into sections to form a plurality of base film units; A first double-sided adhesive tape is arranged at the edge of the base film unit, with one side being bonded to the base film unit and the other side being bonded to the release film; A second double-sided adhesive tape is arranged at the edge of another base film unit adjacent to the first double-sided adhesive tape, with one side being bonded to the base film unit and the other side being bonded to the release film; The peeling film has a front side at one end thereof in contact with the first double-sided tape so as to be peeled off from the surface of the first double-sided tape, and a back side at the other end thereof in contact with the second double-sided tape so as to be bonded and fixed to the second double-sided tape.

2. The packaging film according to claim 1, characterized in that: A fracture structure is provided between the plurality of base membrane units so as to disconnect the base membrane.

3. The packaging film according to claim 2, characterized in that: The fracture structure is in the shape of an elongated strip.

4. The packaging film according to claim 2, characterized in that: The surface of the base film is pressed down by a serrated knife to form a straight line in the shape of a letter "I" as the fracture structure.

5. The packaging film according to claim 1, characterized in that: The front side of the release film is used as a release surface and is provided with a release adhesive.

6. The packaging film according to claim 5, characterized in that: The back side of the release film is an adhesive surface for bonding and fixing.

7. The packaging film according to any one of claims 1 to 6, characterized in that The area of ​​the first double-sided tape is greater than the area of ​​the second double-sided tape.

8. The packaging film according to any one of claims 1 to 6, characterized in that The thickness of the first double-sided tape is smaller than the thickness of the second double-sided tape.

Images