Sealing structure of multi-layer composite food packaging bag

Abstract

The utility model discloses a sealing structure of a multi-layer composite food packaging bag, which comprises a packaging bag main body, a sealing part is fixedly arranged on the upper surface of the packaging bag main body, a hot melt adhesive tape is embedded in a position close to the upper part in the sealing part, a sealing strip is embedded in a position close to the lower part in the sealing part, and the hot melt adhesive tape and the sealing strip are fixedly arranged on the upper surface of the packaging bag main body. The sealing strips are divided into two groups, an auxiliary structure is embedded in the sealing part and located above the sealing strips, the sealing part comprises two groups of notches, a first protective film, a first printing layer and a first base layer, and the two groups of notches are formed in the surfaces of the two sides of the first protective film; and a first printing layer is embedded in the first protective film. According to the sealing structure of the multi-layer composite food packaging bag, the food packaging bag can be rapidly sealed and can be unsealed at any time, the auxiliary structure can be pulled out, and food in the packaging bag can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bag sealing, in particular to a sealing structure for a multi-layer composite food packaging bag. Background Art

[0002] In order to improve the barrier performance and safety performance of food packaging bags, current food packaging bags are basically made of composite materials. The so-called composite materials refer to food packaging bags in which two or more layers of plastic films are compounded together using bonding technology. Their materials are still the original plastic films, but they are no longer single varieties. When using composite food packaging bags, they need to be sealed. There are certain drawbacks in the existing food packaging bag sealing structures during use. Once the packaging bag is torn, it is difficult to seal, which easily causes the food inside the packaging bag to become damp and deteriorate. When the user takes the food inside the packaging bag, they need to put their hand into the packaging bag, which is likely to stick food debris to the back of the hand. Therefore, we propose a sealing structure for a multi-layer composite food packaging bag. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a sealing structure for a multi-layer composite food packaging bag, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A sealing structure for a multi-layer composite food packaging bag, including a packaging bag body. A sealing part is fixedly installed on the upper surface of the packaging bag body. A hot melt adhesive strip is embedded and installed inside the sealing part near the upper position. A sealing strip is embedded and installed inside the sealing part near the lower position. There are two groups of the sealing strips. An auxiliary structure is embedded and installed inside the sealing part above the sealing strips.

[0006] Preferably, the sealing part includes a notch, a first protective film, a first printing layer, and a first base layer. Notches are formed on both side surfaces of the first protective film. There are two groups of the notches. A first printing layer is embedded and installed inside the first protective film. A first base layer is fixedly installed on the inner surface of the first printing layer.

[0007] Preferably, the packaging bag body includes a second protective film, a protective layer, a second printing layer, and a second base layer. A protective layer is embedded and installed inside the second protective film. A second printing layer is embedded and installed on the inner surface of the protective layer. A second base layer is embedded and installed on the inner surface of the second printing layer.

[0008] Preferably, the sealing part and the packaging bag body are fixedly installed on the upper surface of the second protective film through the first protective film. The hot melt adhesive strip is embedded and installed on the inner surface of the first protective film near the upper position, and the sealing strip is embedded and installed on the inner surface of the first protective film near the lower position.

[0009] Preferably, the auxiliary structure includes a first supporting film, a connecting film, and a second supporting film. The first supporting film is fixedly installed on the upper surface of the connecting film, and the second supporting film is movably connected to one side surface of the first supporting film at the upper edge position.

[0010] Preferably, the auxiliary structure is fixedly installed on the inner surface of the first protective film above the sealing strip through the connecting film.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, through the arranged hot melt adhesive strip and sealing strip, the food packaging bag can be sealed and can be unsealed repeatedly; through the arranged auxiliary structure, when the user takes the object inside the packaging bag, the second supporting film can be pulled out to serve as a supporting function, and the food can be poured out onto the second supporting film, thereby avoiding putting the hand into the packaging bag and making food debris adhere to the back of the hand. Description of the Drawings

[0013] Figure 1 It is the overall structural schematic diagram of the sealing structure of a multi-layer composite food packaging bag of the utility model;

[0014] Figure 2 It is the sectional view of the first protective film of the sealing structure of a multi-layer composite food packaging bag of the utility model;

[0015] Figure 3 It is the internal detail view of the sealing part of the sealing structure of a multi-layer composite food packaging bag of the utility model;

[0016] Figure 4 It is the internal detail view of the packaging bag body of the sealing structure of a multi-layer composite food packaging bag of the utility model;

[0017] Figure 5 It is the sealing structure of a multi-layer composite food packaging bag of the utility model Figure 2 The enlarged detail view of part A.

[0018] In the figure: 1. Sealing part; 101. Notch; 102. First protective film; 103. First printing layer; 104. First base layer; 2. Packaging bag body; 201. Second protective film; 202. Protective layer; 203. Second printing layer; 204. Second base layer; 3. Hot melt adhesive strip; 4. Sealing strip; 5. Auxiliary structure; 501. First supporting film; 502. Connecting film; 503. Second supporting film. Detailed implementation mode

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.

[0020] As Figures 1-5 shown, a sealing structure of a multi-layer composite food packaging bag includes a packaging bag body 2. A sealing part 1 is fixedly installed on the upper surface of the packaging bag body 2. A hot melt adhesive strip 3 is embedded and installed inside the sealing part 1 near the upper position. A sealing strip 4 is embedded and installed inside the sealing part 1 near the lower position. There are two groups of sealing strips 4. The sealing strips 4 can seal the sealing part 1 through meshing and are easy to open. An auxiliary structure 5 is embedded and installed above the sealing strip 4 inside the sealing part 1;

[0021] The sealing part 1 includes a notch 101, a first protective film 102, a first printing layer 103, and a first base layer 104. Notches 101 are provided on both side surfaces of the first protective film 102. There are two groups of notches 101. The first printing layer 103 is embedded and installed inside the first protective film 102, and the first base layer 104 is fixedly installed on the inner surface of the first printing layer 103; the packaging bag body 2 includes a second protective film 201, a protective layer 202, a second printing layer 203, and a second base layer 204. The protective layer 202 is embedded and installed inside the second protective film 201. The protective layer 202 is used to improve the quality of the entire packaging bag and reduce the problem of its damage. The second printing layer 203 is embedded and installed on the inner surface of the protective layer 202, and the second base layer 204 is embedded and installed on the inner surface of the second printing layer 203; the sealing part 1 and the packaging bag body 2 are fixedly installed on the upper surface of the second protective film 201 through the first protective film 102. Both the first protective film 102 and the second protective film 201 are transparent protective films. The hot melt adhesive strip 3 is embedded and installed on the inner surface of the first protective film 102 near the upper position, and the sealing strip 4 is embedded and installed on the inner surface of the first protective film 102 near the lower position; the auxiliary structure 5 includes a first supporting film 501, a connecting film 502, and a second supporting film 503. The first supporting film 501 is fixedly installed on the upper surface of the connecting film 502. The second supporting film 503 is movably connected to one side surface of the first supporting film 501 at the upper edge position. The first supporting film 501, the connecting film 502, and the second supporting film 503 are all made of food-grade materials and can be in direct contact with food; the auxiliary structure 5 is fixedly installed on the inner surface of the first protective film 102 above the sealing strip 4 through the connecting film 502.

[0022] It should be noted that the present utility model is a sealing structure for a multi-layer composite food packaging bag. When in use, the food is placed inside the packaging bag body 2, and the sealing part 1 is closed. The hot melt adhesive strip 3 seals the sealing part 1. When the user eats, the food can be poured out onto the auxiliary structure 5. The food that has not been eaten up can still be sealed by the sealing strip 4. The inside of the first protective film 102 includes a first printing layer 103 and a first base layer 104, and the inside of the second protective film 201 includes a protective layer 202, a second printing layer 203, and a second base layer 204. Therefore, its quality is better than that of a single plastic film. When in use, the first protective film 102 is torn open by the notch 101, and the second supporting film 503 is pulled out. The user can pour out a part of the food so that it is located above the first supporting film 501 and the second supporting film 503. In this way, the food can be eaten without getting the hands dirty.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a multi-layer composite food packaging bag, characterized in that: The packaging bag comprises a packaging bag body (2), a sealing portion (1) being fixedly mounted on the upper surface of the packaging bag body (2), a hot melt adhesive strip (3) being embedded and mounted in the interior of the sealing portion (1) near the upper position, a sealing strip (4) being embedded and mounted in the interior of the sealing portion (1) near the lower position, the sealing strip (4) being comprised of two groups, and an auxiliary structure (5) being embedded and mounted in the interior of the sealing portion (1) above the sealing strip (4).

2. The sealing structure of a multi-layer composite food packaging bag according to claim 1, characterized in that: The sealing portion (1) comprises a notch (101), a first protective film (102), a first printed layer (103), and a first base layer (104); both side surfaces of the first protective film (102) are provided with notches (101); the notches (101) are in two groups; the first printed layer (103) is embedded and installed inside the first protective film (102); and the first base layer (104) is fixedly installed on the inner surface of the first printed layer (103).

3. The sealing structure of a multi-layer composite food packaging bag according to claim 2, characterized in that: The packaging bag body (2) comprises a second protective film (201), a protective layer (202), a second printed layer (203), and a second base layer (204); the second protective film (201) has the protective layer (202) embedded in its interior, the protective layer (202) has the second printed layer (203) embedded in its inner surface, and the second base layer (204) is embedded in its inner surface.

4. The sealing structure of a multi-layer composite food packaging bag according to claim 3, characterized in that: The sealing portion (1) and the packaging bag body (2) are fixedly mounted on the upper surface of the second protective film (201) via the first protective film (102); the hot melt adhesive strip (3) is embedded in the inner surface of the first protective film (102) and is located near the upper position; and the sealing strip (4) is embedded in the inner surface of the first protective film (102) and is located near the lower position.

5. The sealing structure of a multi-layer composite food packaging bag according to claim 4, characterized in that: The auxiliary structure (5) comprises a first supporting membrane (501), a connecting membrane (502), and a second supporting membrane (503); the first supporting membrane (501) is fixedly mounted on the upper surface of the connecting membrane (502); and the second supporting membrane (503) is movably connected to a side surface of the first supporting membrane (501) at an upper edge position.

6. The sealing structure of a multi-layer composite food packaging bag according to claim 5, characterized in that: The auxiliary structure (5) is fixedly mounted on the inner surface of the first protective film (102) via a connecting film (502) and is located above the sealing strip (4).

Images