High-strength polypropylene composite bag
By introducing support mechanism and reinforcement sheets into the polypropylene composite bag, the problem of insufficient strength and durability of traditional polypropylene bags is solved, and a high-strength, wear resistance and low-cost packaging solution is achieved.
Patent Information
- Application Number
- CN202422075339.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Traditional polypropylene bags have shortcomings in strength and durability, especially when they are prone to breakage under heavy load or long-term storage conditions, affecting the protection of the packaging. At the same time, increasing the bag thickness will affect flexibility and cost-effectiveness.
Using a support mechanism, a composite material reinforcement sheet including a polyester fiber layer and a carbon fiber layer, the tensile strength, tear resistance and load bearing capacity of the bag are improved by bonding and braiding structure of the support layer and the polypropylene base layer, combining the wear-resistant layer and nylon handle.
The tensile strength, tear resistance and wear resistance of the polypropylene composite bag are enhanced, which reduces damage, improves service life and stability, while maintaining the flexibility of the bag and reducing costs.
Smart Images
Figure CN223132818U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of packaging materials, and particularly to a high-strength polypropylene composite bag. Background Art
[0002] As a packaging material, polypropylene bags are widely used due to their good chemical resistance, moisture resistance, and cost-effectiveness. They are suitable for packaging various items, especially in situations where high strength, moisture protection, and anti-cracking packaging are required, such as the storage and transportation of chemical raw materials, food, agricultural products, etc.
[0003] As a packaging material, polypropylene bags are convenient for loading chemical raw materials, food, agricultural products, etc., facilitating moisture-proof storage of stored raw materials and the transportation of raw materials.
[0004] When polypropylene composite bags are used for the storage and transportation of chemical raw materials, food, agricultural products, etc., they facilitate moisture-proof storage of stored raw materials and protect the raw materials. However, traditional polypropylene bags still need to be improved in terms of strength and durability. Especially under heavy load or long-term storage conditions, the bags are prone to breakage, affecting the protection of the packaged items. Moreover, increasing the thickness of the bags easily affects the flexibility and cost-effectiveness of the bags, and further easily causes the bags to break and the cost to increase. Summary of the Utility Model
[0005] The purpose of this application is to solve the problem that traditional polypropylene bags still need to be improved in terms of strength and durability. Especially under heavy load or long-term storage conditions, the bags are prone to breakage, affecting the protection of the packaged items. Moreover, increasing the thickness of the bags easily affects the flexibility and cost-effectiveness of the bags, and further easily causes the bags to break and the cost to increase. This application provides a high-strength polypropylene composite bag.
[0006] This application specifically adopts the following technical solutions to achieve the above purpose:
[0007] A high-strength polypropylene composite bag includes a composite bag body. Folding areas are provided on both sides of the composite bag body. A bag opening is provided at the upper end of the composite bag body. A fixing groove is provided on the composite bag body. A support layer is fixed inside the composite bag body, and a support mechanism is provided between the support layer and the composite bag body.
[0008] By adopting the above technical solutions, through the support mechanism, it is convenient to increase the strength of tensile strength and tear resistance, reduce the breakage of the composite bag body, reduce the impact on the flexibility and cost-effectiveness of the bag, and improve the stability of the bag.
[0009] Further, the support mechanism includes an adhesive layer fixed to the side of the support layer. On the side of the adhesive layer away from the support layer, a polypropylene base layer is fixed. The support layer is a polyester fiber layer, the adhesive layer is a polyacrylate layer, and a support component is provided between the polypropylene base layer and the composite bag body.
[0010] By adopting the above technical solution, since the support layer is a polyester fiber layer, it is convenient to increase the tensile strength and tear resistance strength of the composite bag body. The polypropylene base layer increases the strength of the composite bag body, and the adhesive layer facilitates the adhesion between the support layer and the polypropylene base layer, increasing the strength of the bag and enhancing the load-bearing capacity and durability of the bag.
[0011] Further, the support component includes an upper reinforcement sheet fixed to the upper end of the composite bag. A lower reinforcement sheet is fixed to the lower end of the composite bag body. A plurality of connecting strips are fixed between the upper reinforcement sheet and the lower reinforcement sheet. The connecting strips are located in the folding area of the composite bag body. Both the upper reinforcement sheet and the lower reinforcement sheet are composite materials of carbon fiber and resin matrix, and the upper reinforcement sheet and the lower reinforcement sheet are adhered to the composite bag body through epoxy resin.
[0012] By adopting the above technical solution, through the upper reinforcement sheet and the lower reinforcement sheet, it is convenient to increase the tensile strength and tear resistance at the upper and lower ends of the composite bag body, reducing the situation of damage to the composite bag body. The connecting strips increase the tensile strength and are convenient for use.
[0013] Further, both the upper reinforcement sheet and the lower reinforcement sheet are composite materials of carbon fiber and resin matrix, and the upper reinforcement sheet and the lower reinforcement sheet are adhered to the composite bag body through epoxy resin.
[0014] By adopting the above technical solution, since both the upper reinforcement sheet and the lower reinforcement sheet are composite materials of carbon fiber and resin matrix, the load-bearing capacity and durability of the bag are enhanced.
[0015] Further, wear-resistant layers are fixed on the surfaces of the composite bag body, the upper reinforcement sheet, and the lower reinforcement sheet. The wear-resistant layer is a polyurethane layer.
[0016] By adopting the above technical solution, since the wear-resistant layer is made of polyurethane material, it is convenient to improve the wear resistance of the composite bag body and the service life of the bag.
[0017] Further, the fixing groove is made of modified polypropylene transparent material.
[0018] By adopting the above technical solution, since the fixing groove is made of modified polypropylene transparent material, it is convenient for the staff to observe the situation of the raw materials of the composite bag body.
[0019] Further, the support layer and the polypropylene base layer are woven into a triangle.
[0020] By adopting the above technical solution, the support layer and the polypropylene base layer are woven into a triangle, which is convenient for improving the strength of the composite bag body, enhancing the tensile strength and tear resistance.
[0021] Furthermore, two symmetrical handles are fixed in each of the two folding areas, and the handles are made of nylon fiber.
[0022] By adopting the above technical solution, since the handles are made of nylon fiber, it is convenient for the staff to use and transport the composite bag body.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. When using the polypropylene composite bag, since the support layer is a polyester fiber layer, it is convenient to increase the tensile strength and tear resistance strength of the composite bag body. The polypropylene base layer increases the strength of the composite bag body. The adhesive layer facilitates the adhesion of the support layer and the polypropylene base layer, improving the load-bearing capacity and durability of the bag. The support layer and the polypropylene base layer are woven into a triangle, which is convenient for improving the strength of the composite bag body, enhancing the tensile strength and tear resistance. The upper reinforcement piece and the lower reinforcement piece facilitate increasing the tensile strength and tear resistance at the upper and lower ends of the composite bag body, reducing the damage of the composite bag body. The connecting strip increases the tensile strength and is convenient for use. The upper reinforcement piece and the lower reinforcement piece are both composite materials of carbon fiber and resin matrix. The epoxy resin improves the overall stability. The support mechanism facilitates increasing the strength of the tensile strength and tear resistance, reducing the damage of the composite bag body, reducing the impact on the flexibility and cost-effectiveness of the bag, and improving the stability of the bag.
[0025] 2. When using the polypropylene composite bag, since the wear-resistant layer is made of polyurethane material, it is convenient to improve the wear resistance of the composite bag body and extend the service life of the bag. Since the fixing groove is made of modified polypropylene transparent material, it is convenient for the staff to observe the raw material situation of the composite bag body. Since the handles are made of nylon fiber, it is convenient for the staff to use and transport the composite bag body. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is the first structural schematic diagram of the composite bag in the present application.
[0027] Figure 2 is the second structural schematic diagram of the composite bag in the present application.
[0028] Figure 3 is the schematic diagram of the composite bag in the present application.
[0029] Figure 4 is in the present application Figure 3 The enlarged structural schematic diagram at position A.
[0030] Description of the reference numerals:
[0031] 1. Composite bag body; 2. Bag mouth; 3. Fixed groove; 4. Support layer; 5. Adhesive layer; 6. Polypropylene base layer; 7. Upper reinforcing sheet; 8. Connecting strip; 9. Handle; 10. Lower reinforcing sheet; 11. Wear-resistant layer; 12. Folding area. Detailed implementation mode
[0032] The following will further elaborate on this application Figures 1-4 in conjunction with the attached drawings.
[0033] The embodiment of this application discloses a high-strength polypropylene composite bag.
[0034] Referring to Figure 1 and Figure 3 , a high-strength polypropylene composite bag includes a composite bag body 1. Folding areas 12 are provided on both sides of the composite bag body 1. A bag mouth 2 is opened at the upper end of the composite bag body 1. A fixed groove 3 is opened on the composite bag body 1. A support layer 4 is fixed inside the composite bag body 1, and a support mechanism is provided between the support layer 4 and the composite bag body 1.
[0035] When using the polypropylene composite bag, the staff loads the raw materials to be stored and transported into multiple composite bag bodies 1. The folding area 12 facilitates folding the composite bag body 1 to increase the support force. Then, through the support mechanism, it is convenient to increase the tensile strength and tear resistance, reduce the damage of the composite bag body 1, and reduce the impact on the flexibility and cost-effectiveness of the bag.
[0036] Referring to Figures 2-4 , the support mechanism includes an adhesive layer 5 fixed on the side of the support layer 4. A polypropylene base layer 6 is fixed on the side of the adhesive layer 5 away from the support layer 4. The support layer 4 is a polyester fiber layer, the adhesive layer 5 is a polyacrylate layer, and a support component is provided between the polypropylene base layer 6 and the composite bag body 1. The support component includes an upper reinforcing sheet 7 fixed at the upper end of the composite bag. A lower reinforcing sheet 10 is fixed at the lower end of the composite bag body 1. A plurality of connecting strips 8 are fixed between the upper reinforcing sheet 7 and the lower reinforcing sheet 10. The connecting strips 8 are located on the composite bag body 1 and within the folding area 12. Both the upper reinforcing sheet 7 and the lower reinforcing sheet 10 are composite materials of carbon fiber and resin matrix. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 are adhered to the composite bag body 1 through epoxy resin. Both the upper reinforcing sheet 7 and the lower reinforcing sheet 10 are composite materials of carbon fiber and resin matrix. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 are adhered to the composite bag body 1 through epoxy resin. The support layer 4 and the polypropylene base layer 6 are woven into a triangle.
[0037] When the polypropylene composite bag is in use, since the support layer 4 is a polyester fiber layer, it is convenient to increase the tensile strength and tear resistance strength of the composite bag body 1. The polypropylene base layer 6 increases the strength of the composite bag body 1. The adhesive layer 5 facilitates the adhesion of the support layer 4 and the polypropylene base layer 6, increasing the strength of the bag, enhancing the load-bearing capacity and durability of the bag. The support layer 4 and the polypropylene base layer 6 are woven into a triangle to facilitate increasing the strength of the composite bag body 1, improving the tensile strength and tear resistance. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 facilitate increasing the tensile strength and tear resistance at the upper and lower ends of the composite bag body 1, reducing the damage of the composite bag body 1. The connecting strip 8 increases the tensile strength and is convenient for use. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 are both composite materials of carbon fiber and resin matrix. The epoxy resin improves the overall stability, enhancing the load-bearing capacity and durability of the bag. Since the wear-resistant layer 11 is made of polyurethane, it is convenient to improve the wear resistance of the composite bag body 1 and the service life of the bag. During processing, the support layer 4 and the polypropylene base layer 6 can be replaced with aramid fiber or carbon fiber, etc. The support mechanism facilitates increasing the strength of the tensile strength and tear resistance, reducing the damage of the composite bag body 1 and minimizing the impact on the flexibility and cost-effectiveness of the bag.
[0038] Refer to Figure 1 and Figure 3 , Figure 4 , wear-resistant layers 11 are fixedly arranged on the surfaces of the composite bag body 1, the upper reinforcing sheet 7 and the lower reinforcing sheet 10. The wear-resistant layer 11 is a polyurethane layer, and the fixing groove 3 is made of modified polypropylene transparent material. Two symmetrical handles 9 are fixedly arranged in each of the two folding areas 12, and the handles 9 are made of nylon fiber.
[0039] When the polypropylene composite bag is in use, since the wear-resistant layer 11 is made of polyurethane, it is convenient to improve the wear resistance of the composite bag body 1 and the service life of the bag. Since the fixing groove 3 is made of modified polypropylene transparent material, it is convenient for the staff to observe the situation of the raw materials in the composite bag body 1. Since the handles 9 are made of nylon fiber, it is convenient for the staff to use and transport the composite bag body 1.
[0040] The implementation principle of a high-strength polypropylene composite bag in this embodiment is as follows: When the polypropylene composite bag is in use, the staff loads the raw materials to be stored and transported into a plurality of composite bag bodies 1, and the folding area 12 facilitates the folding of the composite bag body 1;
[0041] When the polypropylene composite bag is in use, since the support layer 4 is a polyester fiber layer, it is convenient to increase the tensile strength and tear resistance strength of the composite bag body 1. The polypropylene base layer 6 increases the strength of the composite bag body 1. The adhesive layer 5 facilitates the adhesion of the support layer 4 and the polypropylene base layer 6, increases the strength of the bag, improves the load-bearing capacity and durability of the bag. The support layer 4 and the polypropylene base layer 6 are woven into a triangle, which is convenient to improve the strength of the composite bag body 1, and improve the tensile strength and tear resistance. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 facilitate the increase of the tensile strength and tear resistance at the upper and lower ends of the composite bag body 1, and reduce the damage of the composite bag body 1. The connecting strip 8 increases the tensile strength and is convenient for use. The upper reinforcing sheet 7 and the lower reinforcing sheet 10 are both composite materials of carbon fiber and resin matrix. The epoxy resin improves the overall stability, and improves the load-bearing capacity and durability of the bag. Since the wear-resistant layer 11 is made of polyurethane material, it is convenient to improve the wear resistance of the composite bag body 1 and the service life of the bag. During processing, the support layer 4 and the polypropylene base layer 6 can be replaced with aramid fiber or carbon fiber, etc.;
[0042] When the polypropylene composite bag is in use, since the wear-resistant layer 11 is made of polyurethane material, it is convenient to improve the wear resistance of the composite bag body 1 and the service life of the bag. Since the fixing groove 3 is made of modified polypropylene transparent material, it is convenient for the staff to observe the situation of the raw materials of the composite bag body 1. Since the handle 9 is made of nylon fiber, it is convenient for the staff to use and transport the composite bag body 1.
Claims
1. A high-strength polypropylene composite bag, comprising a composite bag body (1), characterized in that: Both sides of the composite bag body (1) are provided with folding areas (12). The upper end of the composite bag body (1) is provided with a bag mouth (2). The composite bag body (1) is provided with a fixing groove (3). A support layer (4) is fixed inside the composite bag body (1). A support mechanism is arranged between the support layer (4) and the composite bag body (1).
2. The high-strength polypropylene composite bag according to claim 1, wherein: The support mechanism includes an adhesive layer (5) fixed to the side of the support layer (4). A polypropylene base layer (6) is fixed to the side of the adhesive layer (5) away from the support layer (4). The support layer (4) is a polyester fiber layer. The adhesive layer (5) is a polyacrylate layer. A support assembly is arranged between the polypropylene base layer (6) and the composite bag body (1).
3. The high-strength polypropylene composite bag according to claim 2, wherein: The support assembly includes an upper reinforcement sheet (7) fixed to the upper end of the composite bag. A lower reinforcement sheet (10) is fixed to the lower end of the composite bag body (1). A plurality of connecting strips (8) are fixed between the upper reinforcement sheet (7) and the lower reinforcement sheet (10). The connecting strips (8) are located in the composite bag body (1) and within the folding area (12). Both the upper reinforcement sheet (7) and the lower reinforcement sheet (10) are composite materials of carbon fiber and resin matrix. The upper reinforcement sheet (7) and the lower reinforcement sheet (10) are adhered to the composite bag body (1) through epoxy resin.
4. The high-strength polypropylene composite bag according to claim 1, wherein: Wear-resistant layers (11) are fixed to the surfaces of the composite bag body (1), the upper reinforcement sheet (7), and the lower reinforcement sheet (10). The wear-resistant layer (11) is a polyurethane layer.
5. A high-strength polypropylene composite bag according to claim 1, characterized in that: The fixing groove (3) is made of modified polypropylene transparent material.
6. A high-strength polypropylene composite bag according to claim 1, wherein: The support layer (4) and the polypropylene base layer (6) are woven into a triangle.
7. A high-strength polypropylene composite bag according to claim 1, characterized in that: Two symmetrical handles (9) are fixed in each of the two folding areas (12). The handles (9) are made of nylon fiber.