Environment-friendly degradable catering packaging box

Abstract

The utility model discloses an environment-friendly degradable catering packing box, which relates to the technical field of packing boxes, and comprises a box body, the top of the box body is rotatably connected with a box cover, the box body comprises a biodegradable material base layer, a reinforcing layer and a heat insulation layer, the heat insulation layer is arranged at one end of the biodegradable material base layer, and the reinforcing layer is laid at the other end of the heat insulation layer; the heat insulation layer comprises a plurality of air bags and filling positioning materials, the air bags are arranged between the biodegradable material base layer and the reinforcing layer, and gaps between the air bags and the biodegradable material base layer and gaps between the air bags and the reinforcing layer are filled with the filling positioning materials; according to the technical scheme provided by the utility model, the plurality of air bags are arranged in the box body, and the positioning materials are filled in the box body, so that heat transfer can be effectively reduced, the temperature of food in the box is kept, and the fresh-keeping effect of the food is improved. And the biodegradable material base layer is adopted, and invasion of microorganisms is accelerated by forming the through holes in the base layer, so that the biodegradation rate of the box body is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to an environmentally friendly and degradable catering packaging box. Background Art

[0002] As public awareness of environmental protection grows, traditional plastic packaging is attracting increasing attention due to its difficulty in degradation and environmental pollution. Therefore, the development of environmentally friendly, biodegradable food packaging materials has become an important research direction. Existing food packaging boxes mostly use a single material structure, such as plastic or paper. These materials often lack good thermal insulation properties and are difficult to degrade after use, which can easily cause environmental pollution. Furthermore, traditional packaging boxes have some problems during use, such as insufficient sealing, susceptibility to moisture leading to food spoilage, and inconvenience in opening and carrying during use. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an environmentally friendly and degradable catering packaging box to solve the problems in the background technology.

[0004] In view of this, the utility model provides an environmentally friendly and degradable food packaging box, comprising a box body, a box cover rotatably connected to the top of the box body, the box body comprising a biodegradable material base, a reinforcement layer and a heat insulation layer, wherein the heat insulation layer is provided at one end of the biodegradable material base, and the reinforcement layer is laid at the other end of the heat insulation layer;

[0005] The thermal insulation layer includes a plurality of air cells and filling and positioning materials. The plurality of air cells are respectively located between the biodegradable material base layer and the reinforcement layer. The filling and positioning materials are filled in the gaps between the air cells and the biodegradable material base layer and the reinforcement layer. The bottom and both sides of the overall structure formed by the biodegradable material base layer, the reinforcement layer and the air cells are paved with a waterproof layer. A sealing member is provided on the top of the box wall of the box body.

[0006] Preferably, a shaft is movably connected to one side of the top of the sealing member on the box body, one end of the bottom of the box cover is fixedly connected to the side wall of the shaft, and the bottom of the box cover matches the size of the opening end of the box body.

[0007] Preferably, the biodegradable material base layer is made of one of corn starch-based materials, polylactic acid, and polybutylene adipate / terephthalate.

[0008] Preferably, a positioning strip is fixedly connected to the middle of the bottom of the sealing member, and the positioning strip is inserted into the gap between the base layer and the reinforcement layer of the biodegradable material.

[0009] Preferably, a plurality of through holes for accelerating degradation are provided between one end of the biodegradable material base layer and one end surface of the reinforcement layer.

[0010] Preferably, both sides of the box body are inlaid with anti-slip layers.

[0011] Preferably, the waterproof layer is made of chitosan film or wax coating material.

[0012] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0013] This environmentally friendly, biodegradable food packaging box incorporates multiple air pockets and fills with positioning material to create an effective insulation layer. This effectively reduces heat transfer, maintains the temperature of food within the box, and enhances food preservation. Furthermore, the base layer of biodegradable material is constructed with through-holes to accelerate microbial invasion, significantly increasing the biodegradation rate of the box and reducing its environmental impact.

[0014] 2. The environmentally friendly and degradable food packaging box of the present invention effectively prevents moisture penetration by laying a waterproof layer on the bottom and both sides of the box body, protects the food in the box from moisture, and extends the shelf life of the food.

[0015] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is an exploded view of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 This is a cross-sectional view of the box wall of the box body of the present invention;

[0020] Figure 4 This is a schematic diagram of the sealing structure of the utility model.

[0021] Explanation of the accompanying drawings: 1. Box body; 11. Biodegradable material base layer; 12. Reinforcement layer; 13. Air bag; 14. Filling and positioning material; 15. Waterproof layer; 16. Through hole; 17. Sealing piece; 171. Positioning strip; 2. Shaft; 3. Box cover; 4. Anti-slip layer. DETAILED DESCRIPTION

[0022] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0023] An environmentally friendly and degradable food packaging box according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example

[0025] For easier understanding, see Figures 1 to 4 The present invention provides an embodiment of an environmentally friendly and degradable food packaging box, comprising a box body 1, a box cover 3 being rotatably connected to the top of the box body 1, the box body 1 comprising a biodegradable material base 11, a reinforcement layer 12 and a heat insulation layer, wherein the heat insulation layer is provided at one end of the biodegradable material base 11, and the reinforcement layer 12 is laid at the other end of the heat insulation layer;

[0026] The thermal insulation layer includes several air pockets 13 and filling and positioning materials 14. The air pockets 13 are located between the biodegradable material base layer 11 and the reinforcement layer 12. The filling and positioning materials 14 are filled in the gaps between the air pockets 13 and the biodegradable material base layer 11 and the reinforcement layer 12. A waterproof layer 15 is laid on the bottom and both sides of the overall structure formed by the biodegradable material base layer 11, the reinforcement layer 12, and the air pockets 13. A sealing member 17 is provided on the top of the box wall of the box body 1. The waterproof layer 15 is made of chitosan film or wax coating material.

[0027] It should be noted that the box body 1 is composed of a biodegradable material base layer 11, a reinforcement layer 12, and a thermal insulation layer. The biodegradable material base layer 11 is located at the outermost layer, the reinforcement layer 12 is located on the inner side, and the thermal insulation layer is sandwiched between the two. The thermal insulation layer includes a plurality of air pockets 13 and a filling and positioning material 14. The air pockets 13 are placed between the biodegradable material base layer 11 and the reinforcement layer 12, and the filling and positioning material 14 is used to fill the gap between the air pockets 13 and the two layers of material to ensure the stability of the entire structure. To prevent moisture penetration, the bottom and both sides of the entire structure formed by the biodegradable material base layer 11, the reinforcement layer 12, and the air pockets 13 are covered with a waterproof layer 15. The waterproof layer 15 can be made of a chitosan film or a wax coating material.

[0028] The filling and positioning material 14 is made of polylactic acid (PLA) foam particles.

[0029] In an optional embodiment: the top side of the sealing member 17 on the box body 1 is movably connected to the shaft body 2, the bottom end of the box cover 3 is fixedly connected to the side wall of the shaft body 2, and the bottom of the box cover 3 matches the size of the opening end of the box body 1.

[0030] It should be noted that one side of the top of the sealing member 17 is movably connected to the box cover 3 through the shaft 2. The size of the bottom of the box cover 3 matches the opening end of the box body 1 to ensure good sealing.

[0031] The shaft 2 is preferably made of polylactic acid material.

[0032] In an optional embodiment, the biodegradable material base layer 11 is made of one or more materials selected from the group consisting of corn starch-based materials, polylactic acid, and polybutylene adipate / terephthalate.

[0033] It should be noted that the biodegradable material base layer 11 preferably uses corn starch-based materials, polylactic acid PLA or polybutylene adipate / terephthalate PBAT, which is convenient for environmentally friendly degradation during recycling.

[0034] In an optional embodiment, a positioning strip 171 is fixedly connected to the middle of the bottom of the sealing member 17 , and the positioning strip 171 is inserted into the gap between the biodegradable material base layer 11 and the reinforcement layer 12 .

[0035] It should be noted that a positioning strip 171 is fixedly connected to the middle of the bottom of the sealing member 17 . The positioning strip 171 is inserted into the gap between the biodegradable material base layer 11 and the reinforcement layer 12 to ensure the stability and sealing effect of the sealing member 17 .

[0036] In an optional embodiment, a plurality of through holes 16 for accelerating degradation are provided between one end of the biodegradable material base layer 11 and one end surface of the reinforcing layer 12 .

[0037] It should be noted that in order to further promote the biodegradation process, a plurality of through holes 16 are opened from one end of the biodegradable material base layer 11 to one end surface of the reinforcement layer 12 so that microorganisms can enter more easily and accelerate the degradation process.

[0038] In an optional embodiment, both sides of the box body 1 are inlaid with an anti-slip layer 4.

[0039] It should be noted that the anti-slip layer 4 is embedded on both sides of the box body 1 to increase the convenience of holding and moving.

[0040] Working Principle: The air cells 13 in the insulation layer utilize air's low thermal conductivity to prevent heat transfer, effectively maintaining the temperature of the food inside the box. The air cells 13 are located between the biodegradable material base layer 11 and the reinforcement layer 12, forming an enclosed space that reduces heat conduction and convection. Filling and positioning material 14 fills the gaps between the air cells 13 and the biodegradable material base layer 11 and reinforcement layer 12, further enhancing the insulation and ensuring the stability of the air cells 13. The biodegradable material base layer 11 is made from biodegradable materials such as corn starch, polylactic acid (PL), or polybutylene adipate / terephthalate (PBAT), which are naturally degradable by microorganisms. Through-holes 16 in the biodegradable material base layer 11 facilitate the entry of microorganisms and accelerate the biodegradation of the material. A waterproof layer 15 covers the bottom and sides of the entire structure consisting of the biodegradable material base layer 11, reinforcement layer 12, and air cells 13 to prevent moisture from penetrating into the box body 1 and affecting the quality of the food. The waterproof layer 15 can be made of a chitosan film or a wax coating. The lid 3 is connected to the sealing member 17 on the box body 1 via the shaft 2, allowing the lid 3 to be easily opened and closed. The bottom of the lid 3 is sized to match the opening of the box body 1, ensuring a good seal and preventing food from spilling or external contaminants from entering.

[0041] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An environmentally friendly and degradable food packaging box, characterized by: The invention comprises a box body (1), wherein the top of the box body (1) is rotatably connected to a box cover (3), and the box body (1) comprises a biodegradable material base layer (11), a reinforcement layer (12) and a heat insulation layer, wherein the heat insulation layer is provided at one end of the biodegradable material base layer (11), and the reinforcement layer (12) is provided at the other end of the heat insulation layer; The heat-insulating layer comprises a plurality of air sacs (13) and a filling and positioning material (14); the plurality of air sacs (13) are respectively located between a biodegradable material base layer (11) and a reinforcement layer (12); the filling and positioning material (14) is respectively filled in the gaps between the air sacs (13) and the biodegradable material base layer (11) and the reinforcement layer (12); the biodegradable material base layer (11), the reinforcement layer (12) and the air sacs (13) constitute the bottom of the whole, and both sides are paved with a waterproof layer (15); and a sealing member (17) is provided on the top of the box wall of the box body (1).

2. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: The top side of the sealing member (17) on the box body (1) is movably connected to the shaft body (2), and one end of the bottom of the box cover (3) is fixedly connected to the side wall of the shaft body (2), and the bottom of the box cover (3) is matched with the size of the opening end of the box body (1).

3. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: The biodegradable material base layer (11) is made of one of corn starch-based materials, polylactic acid, and polybutylene adipate / terephthalate.

4. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: A positioning strip (171) is fixedly connected to the middle of the bottom of the sealing member (17), and the positioning strip (171) is inserted into the gap between the biodegradable material base layer (11) and the reinforcement layer (12).

5. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: A plurality of through holes (16) for accelerating degradation are provided at a position from one end of the biodegradable material base layer (11) to one end surface of the reinforcing layer (12).

6. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: Both sides of the box body (1) are inlaid with anti-slip layers (4).

7. The environmentally friendly and degradable food packaging box according to claim 1, characterized in that: The waterproof layer (15) is made of chitosan film or wax coating material.

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