High-performance plastic packaging bag

Abstract

The utility model relates to the technical field of plastic packaging bags, in particular to a high-performance plastic packaging bag which comprises a front piece, a rear piece adheres to the bottom of the front piece, a side piece is connected between the rear piece and the front piece, a lifting belt is integrally formed between the front piece and the rear piece, a cover piece is integrally formed at the top of the rear piece, a first protruding edge is machined and formed on the cover piece, and a second protruding edge is machined and formed on the cover piece. At least two first protruding edges are arranged at intervals, at least two second protruding edges matched with the first protruding edges are machined on the front piece, at least two second protruding edges are arranged at intervals, the first protruding edges can be embedded with the second protruding edges, the whole packaging bag is made of polypropylene, and the purposes that the packaging bag is convenient to seal, and the packaging bag is not prone to deformation are achieved. And the repeated use frequency of the packaging bag is increased.

Description

Technical Field

[0001] The present application relates to the technical field of plastic packaging bags, and in particular to a high-performance plastic packaging bag. Background Art

[0002] Plastic packaging bags are widely used for packaging various items because of their light weight, low cost, waterproof and moisture-proof properties. When plastic packaging bags are used to hold food, they also have multiple functions such as preservation, easy transportation, and pollution prevention.

[0003] When existing plastic packaging bags are used to hold food, two handles of the packaging bags are usually tied together to close the bag opening of the plastic packaging bag to ensure that the food in the packaging bag is clean and hygienic.

[0004] The above-mentioned prior art solutions have the following defects: when manually tightening the handle of the packaging bag, it is inconvenient to control the tightening position and strength, which may easily cause the seal to be unable to close and even reduce the overall structural strength of the packaging bag. Utility Model Content

[0005] In order to facilitate the sealing of the packaging bag and increase the number of times the packaging bag can be reused, the present application provides a high-performance plastic packaging bag.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A high-performance plastic packaging bag comprises a front panel, a back panel bonded to the bottom of the front panel, side panels connected to the back panel and the front panel, a handle integrally formed between the front panel and the back panel, a cover panel integrally formed on the top of the back panel, a first ridge formed on the cover panel, at least two of the first ridges being arranged at intervals, a second ridge matched with the first ridge being formed on the front panel, at least two of the second ridges being arranged at intervals, the first ridge being able to fit into the second ridge, and the entire packaging bag is made of polypropylene.

[0008] By adopting the above technical solution, it is ensured that the cover sheet can firmly cover the bag opening of the packaging bag, which is convenient for sealing the packaging bag and reduces the impact on the handle when closing the bag opening. The polypropylene material has high tensile strength and tear resistance, which can ensure the overall structural strength of the handle and packaging bag, and increase the number of times the packaging bag can be reused.

[0009] Optionally, third protrusions are formed on the front piece, and at least two third protrusions are arranged at intervals.

[0010] By adopting the above technical solution, the opening of the bag can be reduced, the sealing performance of the bag opening can be improved, and the cover can stably cover the bag opening when the volume of the items in the bag is small.

[0011] Optionally, surfaces of the first protrusion, the second protrusion, and the third protrusion are all provided with a silicone anti-slip layer.

[0012] By adopting the above technical solution, the friction between the first ridge and the second or third ridge can be increased, and the connection stability between the first ridge and the second or third ridge can be increased, ensuring that the cover sheet can firmly cover the bag opening of the packaging bag.

[0013] Optionally, the connection between the handle, the front piece and the back piece is processed into an arc shape.

[0014] By adopting the above technical solution, the structural strength of the connection between the handle and the front and rear panels can be increased, thereby increasing the number of times the packaging bag can be reused.

[0015] Optionally, the surface of the handle is processed to form mesh-like protrusions.

[0016] By adopting the above technical solution, the structural strength of the handle can be increased, ensuring that the handle will not roll up into a strip when the user carries the packaging bag, increasing the comfort of the user when carrying the packaging bag, and increasing the number of times the packaging bag can be reused.

[0017] Optionally, raised bands are formed on the front panel, the back panel and the side panels.

[0018] By adopting the above technical solution, the friction between the bag openings of the packaging bag can be increased, making it easier for users to open the bag openings. At the same time, the raised strips can increase the structural strength of the bag openings, reduce damage to the bag openings when taking items out of the bag, and increase the number of times the packaging bag can be reused.

[0019] Optionally, weight-reducing holes are provided at the locations where the raised bands are formed on the front piece and the back piece, and a plurality of weight-reducing holes are provided at intervals.

[0020] By adopting the above technical solution, the overall weight of the packaging bag can be reduced, making it easier for the cover sheet to cover the bag opening of the packaging bag.

[0021] Optionally, fold lines are formed on the side panels.

[0022] By adopting the above technical solution, it is convenient for users to repeatedly fold the bottom of the packaging bag, reducing the space occupied when storing the packaging bag, while ensuring the overall structural strength of the packaging bag after folding, and increasing the number of times the packaging bag can be reused.

[0023] In summary, this application has the following technical effects:

[0024] 1. The cover sheet, the first ridge, and the second ridge ensure that the cover sheet can firmly cover the bag opening, making it easier to seal the bag opening, reducing the impact on the handle when closing the bag opening, ensuring the overall structural strength of the handle and bag, and increasing the number of times the bag can be reused.

[0025] 2. The mesh ridges increase the structural strength of the handle, ensuring that the handle does not curl up when the user carries the bag, increasing the user's comfort when carrying the bag and increasing the number of times the bag can be reused.

[0026] 3. By setting up the raised belt, the friction between the bag openings can be increased, making it easier for users to open the bag openings. At the same time, the raised belt can increase the structural strength of the bag openings, reduce damage to the bag openings when taking items out of the bag, and increase the number of times the bag can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the appearance structure diagram of this application;

[0028] Figure 2 This is a structural diagram from another angle of this application.

[0029] Explanation of the accompanying drawings: 1. front piece; 2. back piece; 3. side piece; 31. fold line; 4. handle; 41. mesh ridge; 5. cover piece; 6. first ridge; 7. second ridge; 8. third ridge; 9. raised belt; 91. weight-reducing hole. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] The present application discloses a high performance plastic packaging bag, referring to Figure 1 and Figure 2 The packaging bag includes a rectangular front piece 1, a back piece 2 is bonded to the bottom of the front piece 1, the front piece 1 and the back piece 2 have the same shape and equal area, side pieces 3 are integrally formed between the two side edges in the length direction of the front piece 1 and the back piece 2, and a handle 4 is integrally formed between the two sides in the length direction of the top of the front piece 1 and the back piece 2. A cover piece 5 is integrally formed on the top of the back piece 2, and a first ridge 6 is formed on the side of the top of the cover piece 5 facing the front piece 1 along its length direction. Three first ridges 6 are arranged at intervals along the width direction of the cover piece 5, and a second ridge 7 is formed on the side of the top of the front piece 1 away from the back piece 2 to match the first ridge 6. Three second ridges 7 are arranged at intervals along the length direction of the front piece 1, and the first ridge 6 can be embedded with the second ridge 7. The packaging bag is made of polypropylene as a whole.

[0032] When using this packaging bag, after putting the items into the packaging bag, flip the cover piece 5 to cover the bag opening of the packaging bag. As the cover piece 5 flips and covers the bag opening, a section of the top of the cover piece 5 with a first ridge 6 is processed and formed to fit with a section of the top of the front piece 1 with a second ridge 7. The first ridge 6 and the second ridge 7 are embedded and limit the cover piece 5, ensuring that the cover piece 5 can firmly cover the bag opening of the packaging bag, facilitating the sealing of the packaging bag, and reducing the impact on the handle 4 when closing the bag opening. The polypropylene material has high tensile strength and tear resistance, which can ensure the structural strength of the handle 4 and the packaging bag as a whole, and increase the number of times the packaging bag can be reused.

[0033] Reference Figure 1 and Figure 2 The side of the second ridge 7 away from the handle 4 is processed to form a third ridge 8 that cooperates with the first ridge 6. Three third ridges 8 are arranged at intervals along the length of the packaging bag. When using this packaging bag, after placing items into the packaging bag, the cover sheet 5 is flipped over to cover the bag opening. As the cover sheet 5 flips over and covers the bag opening, if the items are small, the section of the top of the cover sheet 5 with the first ridge 6 formed thereon mates with the section of the top of the front sheet 1 with the third ridge 8 formed thereon. The first ridge 6 and the second ridge 7 are embedded and limit the cover sheet 5, which can reduce the opening of the bag, improve the sealing performance of the bag opening, and ensure that the cover sheet 5 can firmly cover the bag opening when the items in the packaging bag are small.

[0034] Reference Figure 2 The surfaces of the first ridge 6, the second ridge 7, and the third ridge 8 are all provided with a silicone anti-slip layer. When the packaging bag is used, the silicone anti-slip layer can increase the friction between the first ridge 6 and the second ridge 7 or the third ridge 8, while also increasing the stability of the connection between the first ridge 6 and the second ridge 7 or the third ridge 8, ensuring that the cover sheet 5 can firmly cover the bag opening.

[0035] Reference Figure 1 and Figure 2 The edges of the two handles 4 facing each other at the connection between the front panel 1 and the back panel 2 are processed into an arc. When using the packaging bag, the arcuate edges of the handles 4 can increase the structural strength of the connection between the handles 4 and the front panel 1 and the back panel 2, thereby increasing the number of times the packaging bag can be reused.

[0036] Reference Figure 2 The surface of the handle 4 is processed to form a mesh-like protrusion 41. When using the packaging bag, the mesh-like protrusion 41 on the surface of the handle 4 can increase the structural strength of the handle 4, ensuring that the handle 4 will not roll up into a strip when the user carries the packaging bag, increasing the user's comfort when carrying the packaging bag and increasing the number of times the packaging bag can be reused.

[0037] Reference Figure 1 and Figure 2The tops of the front panel 1, the back panel 2, and the side panels 3 are all formed with raised strips 9. When the packaging bag is used, the raised strips 9 can increase the friction between the bag openings, making it easier for the user to open the bag opening. At the same time, the raised strips 9 can increase the structural strength of the bag openings, reduce damage to the bag openings when taking items out of the bag, and increase the number of times the bag can be reused.

[0038] Reference Figure 2 The front panel 1 and the back panel 2 are provided with weight-reducing holes 91 at the locations where the raised bands 9 are formed. A plurality of weight-reducing holes 91 are spaced apart along the length of the raised bands 9. When the packaging bag is used, the weight-reducing holes 91 can reduce the overall weight of the packaging bag, making it easier for the cover sheet 5 to cover the bag opening.

[0039] Reference Figure 2 A fold line 31 is formed on a portion of the side panel 3 away from the handle 4. The fold line 31 connects the bottom of the front panel 1 and the bottom of the side panel 3, the bottom of the back panel 2 and the bottom of the side panel 3, and the portion of the side panel 3 away from the handle. When using the present packaging bag, the fold line 31 facilitates the user to repeatedly fold the bottom of the packaging bag, reducing the space occupied when storing the packaging bag while ensuring the overall structural strength of the folded packaging bag and increasing the number of times the packaging bag can be reused.

[0040] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A high-performance plastic packaging bag, characterized by: The packaging bag comprises a front piece (1), a back piece (2) is bonded to the bottom of the front piece (1), a side piece (3) is connected between the back piece (2) and the front piece (1), a handle (4) is integrally formed between the front piece (1) and the back piece (2), a cover piece (5) is integrally formed on the top of the back piece (2), a first ridge (6) is formed on the cover piece (5), and at least two of the first ridges (6) are arranged at intervals, a second ridge (7) is formed on the front piece (1) to match the first ridge (6), and at least two of the second ridges (7) are arranged at intervals, and the first ridge (6) can be embedded with the second ridge (7), and the packaging bag is made of polypropylene as a whole.

2. A high-performance plastic packaging bag according to claim 1, characterized in that: The front panel (1) is processed to form third ridges (8), and at least two third ridges (8) are arranged at intervals.

3. A high-performance plastic packaging bag according to claim 2, characterized in that: The surfaces of the first protrusion (6), the second protrusion (7) and the third protrusion (8) are all provided with a silicone anti-slip layer.

4. The high-performance plastic packaging bag according to claim 1, characterized in that: The connection points between the handle (4) and the front piece (1) and the back piece (2) are all processed to form an arc shape.

5. The high-performance plastic packaging bag according to claim 4, characterized in that: The surface of the handle (4) is processed to form a mesh-like protrusion (41).

6. The high-performance plastic packaging bag according to claim 5, characterized in that: The front panel (1), the back panel (2) and the side panel (3) are all processed to form raised belts (9).

7. The high-performance plastic packaging bag according to claim 6, characterized in that: The front piece (1) and the back piece (2) are both provided with weight-reducing holes (91) at the locations where the raised bands (9) are formed, and a plurality of weight-reducing holes (91) are provided at intervals.

8. The high-performance plastic packaging bag according to claim 1, characterized in that: A fold line (31) is formed on the side panel (3).

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