Food packaging bag

Abstract

The utility model discloses a food packaging bag which comprises a bag body and a bag bottom, the bag body and the bag bottom are respectively provided with a paper layer, the outer side face of each paper layer is coated with a waterproof and oil-proof layer, the inner side face of each paper layer is provided with an aluminum foil layer, the side, away from the paper layers, of each aluminum foil layer is coated with an adhesive layer, and the adhesive layers are coated on the whole surfaces of the bag body and the bag bottom. Or the adhesive layer is coated at the joint of the bag body and the bag bottom and the joint of the bag body. The bag body and the bag bottom are bonded and formed through the adhesive layer, the packaging bag is prevented from being made of a plastic film, the whole packaging bag is not provided with a plastic product, the packaging bag can be degraded smoothly, white pollution cannot be caused, and environment protection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bags, in particular to a food packaging bag. Background Art

[0002] Food packaging bags are a type of packaging design. In order to preserve and store food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and are used to hold and protect food.

[0003] When the existing paper food packaging bags are in use, the aluminum foil or tin foil is separated from the food by a heat-sealed film on the inner side of the packaging bag, so that the packaging bag uses a large amount of plastic, which is not conducive to environmental degradation. At the same time, when the existing food packaging bags are in use, the bag body is easily tilted due to unstable bottom support when the bag body is disassembled and placed, thereby causing the food in the packaging bag to spill. In addition, when the traditional paper packaging bags are in use, a small amount of inert gas is generally filled on the inside. When the bag body is transported or hit, the food in the bag body is easily broken and damaged due to external impact, affecting the quality of food transportation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a food packaging bag. By setting a waterproof and oil-proof layer, the amount of plastic used in the contact surface of the bag body with the food is reduced, which is conducive to the degradation of the bag body and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A food packaging bag comprises a bag body and a bag bottom, both of which have a paper layer, the outer side of the paper layer is coated with a waterproof and oil-proof layer, the inner side of the paper layer is provided with an aluminum foil layer, and the side of the aluminum foil layer away from the paper layer is coated with an adhesive layer, the adhesive layer is coated on the entire surface of the bag body and the bag bottom, or the adhesive layer is coated on the joint of the bag body and the bag bottom and the seam of the bag body.

[0007] The adhesive layer is formed by coating with a hot-sealing adhesive or a cold-sealing adhesive.

[0008] Wherein, an inflatable protective structure is arranged on the outer side of the bag body, the inflatable protective structure is glued to the bag body, and the inflatable protective structure is made of paper.

[0009] Among them, an end sealing strip area is arranged on the upper part of the bag body, a back sealing strip is vertically arranged on one side of the bag body, and the bonding positions of the back sealing strip and the end sealing strip area are both glued.

[0010] Among them, the second reinforcing rib and the connecting rib are penetrated in the lower edge of the bag body, the first reinforcing rib is penetrated in the lower vertical edge of the bag body, and the first reinforcing rib, the second reinforcing rib and the connecting rib are all glued to the inner side of the bag body.

[0011] The utility model forms the bag body and the bag bottom by bonding them together through an adhesive layer, thereby avoiding the use of a plastic film in the packaging bag. The entire packaging bag is free of plastic products, so that the packaging bag can be smoothly degraded without causing white pollution, which is beneficial to protecting the environment.

[0012] The utility model provides second reinforcing ribs, first reinforcing ribs and connecting ribs so that the bottom of the bag body can be stably supported by the second reinforcing ribs, the first reinforcing ribs and the connecting ribs, ensuring that the bag body can be stably placed after being opened, and preventing the food in the bag body from being scattered due to tipping over due to unstable placement.

[0013] The utility model provides an inflatable protective structure so that the food in the bag can be elastically buffered when the bag is impacted, thereby preventing the food in the bag from being broken or damaged due to the impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the second reinforcing rib and the first reinforcing rib in the utility model;

[0016] Figure 3 It is a right sectional structural schematic diagram of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1. bag body; 2. inflatable protective structure; 3. back seal; 4. first reinforcing rib; 5. second reinforcing rib; 6. connecting rib; 7. waterproof and oil-proof layer; 8. aluminum foil layer; 9. paper layer; 10. end seal strip area; 11. bag bottom; 12. adhesive layer. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4 A food packaging bag comprises a bag body 1 and a bag bottom 11, both the bag body 1 and the bag bottom 11 have a paper layer 9, the outer side of the paper layer 9 is coated with a waterproof and oil-proof layer 7, the inner side of the paper layer 9 is provided with an aluminum foil layer 8, and the side of the aluminum foil layer 8 away from the paper layer 9 is coated with an adhesive layer 12, the adhesive layer 12 is coated on the entire surface of the bag body 1 and the bag bottom 11, or the adhesive layer 12 is coated on the joint of the bag body 1 and the bag bottom 11 and the seam of the bag body 1.

[0020] The paper layer 9 is bonded to the aluminum foil layer 8 .

[0021] The adhesive layer 12 is formed by coating with a hot-sealing adhesive or a cold-sealing adhesive.

[0022] Among them, an inflatable protective structure 2 is arranged on the outer side of the bag body 1, and the inflatable protective structure 2 is glued to the bag body 1. The inflatable protective structure 2 is made of paper, and the inflatable protective structure 2 can provide cushioning protection for the bag body 1 when it is hit, so as to prevent the food in the bag body 1 from being broken or damaged when it is hit.

[0023] An end sealing strip area 10 is arranged on the upper part of the bag body 1, and a back sealing strip 3 is vertically arranged on one side of the bag body 1. The bonding positions of the back sealing strip 3 and the end sealing strip area 10 are both glued.

[0024] Among them, the lower edge of the bag body 1 is provided with a second reinforcing rib 5 and a connecting rib 6, and the lower vertical edge of the bag body 1 is provided with a first reinforcing rib 4, and the first reinforcing rib 4, the second reinforcing rib 5 and the connecting rib 6 are all glued to the inner side of the bag body 1. The first reinforcing rib 4, the second reinforcing rib 5 and the connecting rib 6 can all be made of paper or metal (such as aluminum), and the second reinforcing rib 5 and the connecting rib 6 can provide stable support for the bottom of the bag body 1, and the first reinforcing rib 4 can provide vertical support for the bag body 1, ensuring that the bag body 1 can be placed stably after opening the bag, and preventing the food in the bag body 1 from scattering due to the unstable placement of the bag body 1.

[0025] During use, after food is loaded into the bag body 1, the end sealing strip area 10 is sealed by a bag sealing device, and the inflatable protective structure 2 can be filled with high-pressure gas, so that the inflatable protective structure 2 forms a flexible buffer barrier, so that when the bag body 1 is hit, the food in the bag body 1 is buffered and protected to prevent the food from being broken and damaged. The second reinforcing ribs 5 and the first reinforcing ribs 4 at the lower part of the bag body 1 can support the bottom of the bag body 1, and the connecting ribs 6 can connect the second reinforcing ribs 5 and the first reinforcing ribs 4 on both sides of the bottom of the bag body 1 into an integral structure, so that the bottom of the bag body 1 is more stable when placed, and the food in the bag body 1 is prevented from spilling due to the unstable placement of the bag body 1 and tipping over. The second reinforcing ribs 5, the first reinforcing ribs 4 and the connecting ribs 6 can be bent and adjusted according to usage requirements, so that the bottom of the bag body 1 can be placed stably.

Claims

1. A food packaging bag, comprising a bag body (1) and a bag bottom (11), characterized in that: The bag body (1) and the bag bottom (11) both have a paper layer (9), the outer side of the paper layer (9) is coated with a waterproof and oil-proof layer (7), the inner side of the paper layer (9) is provided with an aluminum foil layer (8), and the side of the aluminum foil layer (8) away from the paper layer (9) is coated with an adhesive layer (12), and the adhesive layer (12) is coated on the entire surface of the bag body (1) and the bag bottom (11), or the adhesive layer (12) is coated on the joint between the bag body (1) and the bag bottom (11) and the joint of the bag body (1).

2. The food packaging bag according to claim 1, characterized in that: The adhesive layer (12) is an adhesive layer (12) formed by coating with a hot-sealing adhesive or a cold-sealing adhesive.

3. The food packaging bag according to claim 1, characterized in that: An inflatable protective structure (2) is provided on the outer side of the bag body (1), and the inflatable protective structure (2) is glued to the bag body (1).

4. The food packaging bag according to claim 1, characterized in that: An end sealing strip area (10) is arranged on the upper part of the bag body (1), and a back sealing strip (3) is vertically arranged on one side of the bag body (1), and the bonding positions of the back sealing strip (3) and the end sealing strip area (10) are both glued.

5. The food packaging bag according to claim 1, characterized in that: A second reinforcing rib (5) and a connecting rib (6) are provided inside the lower edge of the bag body (1), a first reinforcing rib (4) is provided inside the lower vertical edge of the bag body (1), and the first reinforcing rib (4), the second reinforcing rib (5) and the connecting rib (6) are all glued to the inner side of the bag body (1).

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