Multi-layer food packaging bag

Abstract

The utility model discloses a multi-layer food packaging bag, relates to packaging bag technical field, including high density foam layer and aluminum film layer, the inner wall of high density foam layer is bonded and connected with the double-sided adhesive, and the front side of double-sided adhesive is bonded and connected with the slip surface paster, the top of the left side of slip surface paster is fixedly connected with the easily torn convex piece. By adopting the double-sided adhesive, the sliding surface sticker and the easy-to-tear lug, the sliding surface sticker is attached to the surface of the double-sided adhesive, so that the double-sided adhesive is prevented from being adhered to two sides in the bag body, the easy-to-tear lug is convenient for a user to tear down the sliding surface sticker from the double-sided adhesive, and then the double-sided adhesive can be used for adhering a replaced opening, so that the double-sided adhesive can be conveniently adhered to the bag body. In addition, the double-faced adhesive tape is relatively low in cost, the problem that a traditional heat preservation bag adopting a transparent adhesive tape cannot achieve the good sealing effect is solved, the practicability and the sealing performance of the device are greatly improved, and the production cost is reduced.

Description

Technical Field

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

[0002] When ordering takeout in the winter, merchants often use insulated bags to keep the food warm to ensure that the food is still hot when it reaches the customers. Customers do not need to reheat it and can eat it directly, which is more practical and will not affect the taste.

[0003] The existing technology has the following problems:

[0004] 1. Existing takeaway merchants often use transparent tape to seal insulation bags in winter, which is not only troublesome and inefficient, but also not tightly sealed, and cannot keep the food warm well, which is very impractical. Therefore, this problem needs to be solved;

[0005] 2. Existing food packaging bags may be reused by merchants when the inside is relatively clean after use, which is very unhygienic, so this problem needs to be solved;

[0006] 3. The existing takeaway food insulation packaging bag has a foam layer inside, which cannot directly contact the food and is very impractical. Therefore, this problem needs to be solved. Utility Model Content

[0007] The utility model provides a multi-layer food packaging bag to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A multi-layer food packaging bag comprises a high-density foam layer and an aluminum film layer, wherein a double-sided adhesive is bonded to the inner wall of the high-density foam layer, and a smooth surface sticker is bonded to the front of the double-sided adhesive, and an easy-tear convex piece is fixedly connected to the top of the left side of the smooth surface sticker, and an outer sealing layer is bonded to the outer wall of the aluminum film layer, and the material of the outer sealing layer is polyester, an easy-tear opening is opened on the top of the outer sealing layer, and there are two easy-tear openings in total, and the two easy-tear openings are respectively arranged on the left and right sides of the outer sealing layer.

[0010] A further improvement of the technical solution of the utility model is that an inner sealing layer is bonded and connected to the inner wall of the high-density foam layer, and the material of the inner sealing layer is food-grade PVC.

[0011] By adopting the above technical solution, the inner sealing layer in the solution can prevent food from directly contacting the high-density foam layer, and the material of the inner sealing layer is food-grade PVC, which is safer and can be safely in direct contact with food.

[0012] A further improvement of the technical solution of the utility model is that an aluminum film layer is bonded and connected to the outer wall of the high-density foam layer.

[0013] The above technical solution is adopted. The aluminum film in the solution is a highly efficient heat-insulating material that can reflect and dissipate heat, thereby significantly improving the overall heat-insulating effect of the insulation bag.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a multi-layer food packaging bag, which adopts double-sided adhesive tape, a slippery sticker and an easy-tear convex sheet. The slippery sticker is attached to the surface of the double-sided adhesive tape to prevent the double-sided adhesive tape from adhering to the inner sides of the bag body. The easy-tear convex sheet is convenient for the user to tear the slippery sticker off the double-sided adhesive tape, and then the double-sided adhesive tape can adhere the replaced openings to play a good sealing role. In addition, the cost of the double-sided adhesive tape is relatively low, which solves the problem that the traditional insulation bag cannot be well sealed by using transparent tape, greatly improves the practicality and sealing of the device, and reduces the production cost.

[0016] 2. The utility model provides a multi-layer food packaging bag, which adopts double-sided adhesive, a high-density foam layer and an easy-tear opening. The double-sided adhesive bonds the high-density foam layers on both sides. Tearing them apart after bonding is likely to damage the high-density foam layer and the double-sided adhesive, and they cannot be used again. Moreover, the bag opening after bonding is not easy to tear apart. Therefore, an easy-tear opening is provided to facilitate users to tear open the packaging bag and take out the food inside the packaging bag. This solves the problem that traditional food packaging bags may be reused by merchants when the inside is relatively clean after use, which is very unhygienic, and greatly improves the practicality and health and safety of the device.

[0017] 3. The utility model provides a multi-layer food packaging bag with an inner sealing layer. The material of the inner sealing layer is food-grade PVC, which can safely contact food and avoid direct contact between food and the high-density foam layer, so that users can use and eat it with confidence. It solves the problem that the interior of traditional take-out thermal insulation food packaging bags is directly a foam layer and cannot directly contact with food, and greatly improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural front view of the utility model;

[0019] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 3 It is a front cross-sectional view of the structure of the utility model;

[0021] Figure 4For the utility model Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0022] In the figure: 1. outer sealing layer; 2. easy-to-tear opening; 3. aluminum film layer; 4. high-density foam layer; 5. double-sided adhesive tape; 6. slippery surface sticker; 7. inner sealing layer; 8. easy-to-tear convex piece. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] Example 1

[0025] like Figure 1-4 As shown, the utility model provides a multi-layer food packaging bag and an aluminum film layer 3, including a high-density foam layer 4, a double-sided adhesive 5 is bonded and connected to the inner wall of the high-density foam layer 4, and a smooth surface sticker 6 is bonded and connected to the front of the double-sided adhesive 5, and an easy-to-tear protrusion 8 is fixedly connected to the top of the left side of the smooth surface sticker 6. In this embodiment, double-sided adhesive tape 5, slippery sticker 6 and easy-tear convex sheet 8 are used. The slippery sticker 6 is attached to the surface of the double-sided adhesive tape 5 to prevent the double-sided adhesive tape 5 from adhering to the two sides of the inner part of the bag body. The easy-tear convex sheet 8 is convenient for the user to tear the slippery sticker 6 off the double-sided adhesive tape 5. Then the double-sided adhesive tape 5 can be used to bond the replaced opening, which can play a good sealing role. In addition, the cost of the double-sided adhesive tape 5 is relatively low, which solves the problem that the traditional thermal insulation bag cannot be well sealed by transparent tape, greatly improves the practicality and sealing of the device, and reduces the production cost. The double-sided adhesive tape 5, the high-density foam layer 4 and the easy-tear opening 2 are used. The double-sided adhesive tape 5 bonds the high-density foam layers 4 on both sides, and it is easy to tear them apart after bonding. The high-density foam layer 4 and the double-sided adhesive 5 are damaged and cannot be used again, and the bag mouth after bonding is not easy to tear open. Therefore, an easy-tear opening 2 is provided to facilitate the user to tear the packaging bag and take out the food inside the packaging bag, solving the problem that the traditional food packaging bag may be reused by merchants when the inside is relatively clean after use, which is very unhygienic, greatly improving the practicality and health and safety of the device, adopting an inner sealing layer 7, the material of the inner sealing layer 7 is food-grade PVC, which can safely contact food and avoid direct contact between food and the high-density foam layer 4, so that users can use and eat it with confidence, solving the problem that the inside of the traditional take-out insulation food packaging bag is directly a foam layer and cannot directly contact with food, greatly improving the practicality of the device.

[0026] Example 2

[0027] like Figure 1-4As shown, based on Example 1, the utility model provides a technical solution: preferably, an inner sealing layer 7 is bonded to the inner wall of the high-density foam layer 4, and the material of the inner sealing layer 7 is food-grade PVC, and an aluminum film layer 3 is bonded to the outer wall of the high-density foam layer 4.

[0028] In this embodiment, the inner sealing layer 7 can prevent food from directly contacting the high-density foam layer 4, and the material of the inner sealing layer 7 is food-grade PVC, which is safer and can safely come into direct contact with food. The aluminum film is a highly efficient thermal insulation material that can reflect and dissipate heat, thereby significantly improving the overall thermal insulation effect of the insulation bag.

[0029] Example 3

[0030] like Figure 1-4 As shown, based on Example 1 and Example 2, the utility model provides a technical solution: preferably, an outer sealing layer 1 is bonded to the outer wall of the aluminum film layer 3, and the material of the outer sealing layer 1 is polyester, and an easy-tear opening 2 is opened above the outer sealing layer 1, and there are two easy-tear openings 2, and the two easy-tear openings 2 are respectively arranged on the left and right sides of the outer sealing layer 1.

[0031] In this embodiment, the outer sealing layer 1 is the outermost packaging of the multi-layer food packaging bag insulation bag, which not only provides protection against the influence of the external environment, but also further enhances the heat insulation function of the bag body. It is made of polyester and has excellent waterproof, anti-fouling and wear-resistant functions. The easy-tear opening 2 is convenient for the user to tear open the upper part of the bag body stuck with the double-sided adhesive 5 and directly take out the food inside the bag body.

[0032] The working principle of the multi-layer food packaging bag is described in detail below.

[0033] like Figure 1-4 As shown, the food is placed in the innermost inner sealing layer 7 of the multi-layer food packaging bag. After the food is placed, the slippery sticker 6 is torn off through the easy-tear convex piece 8, and then the opening of the multi-layer food packaging bag is bonded and sealed with the double-sided adhesive 5. After the sealing is completed, the food is ready.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-layer food packaging bag, comprising a high-density foam layer (4) and an aluminum film layer (3), characterized in that: The inner wall of the high-density foam layer (4) is bonded with a double-sided adhesive (5), and the front side of the double-sided adhesive (5) is bonded with a smooth surface sticker (6), and the left top of the smooth surface sticker (6) is fixedly connected with an easy-tear convex piece (8), and the outer wall of the aluminum film layer (3) is bonded with an outer sealing layer (1), and the material of the outer sealing layer (1) is polyester, and an easy-tear opening (2) is opened on the top of the outer sealing layer (1), and there are two easy-tear openings (2), and the two easy-tear openings (2) are respectively arranged on the left and right sides of the outer sealing layer (1).

2. A multi-layer food packaging bag according to claim 1, characterized in that: An inner sealing layer (7) is bonded to the inner wall of the high-density foam layer (4), and the material of the inner sealing layer (7) is food-grade PVC.

3. A multi-layer food packaging bag according to claim 1, characterized in that: An aluminum film layer (3) is bonded and connected to the outer wall of the high-density foam layer (4).

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