Environment-friendly high-strength paper bag capable of preventing powder leakage

Abstract

The utility model provides an environment-friendly high-strength powder leakage prevention paper bag which comprises a paper bag body, a first reinforcing portion and a second reinforcing portion, the first reinforcing portion is integrally arranged at the upper end of the paper bag body, and the second reinforcing portion is integrally arranged at the lower end of the paper bag body. Compared with the prior art, the environment-friendly paper bag has the advantages that the paper bag is more environment-friendly by changing the composition of the paper bag body, the first reinforcing part and the second reinforcing part, the first kraft paper layer and the second kraft paper layer are compounded on the inner side and the outer side of the linen layer respectively, the use strength of the whole paper bag can be greatly improved, and the service life of the paper bag is prolonged. By arranging the first reinforcing part and the second reinforcing part, the use strength of the upper end, the lower end and the four easy-to-wear corners of the paper bag body can be improved, the use strength of the whole paper bag is greatly improved, and the problem that the paper bag body leaks due to small holes caused by wear of the upper end, the lower end and the four easy-to-wear corners of the paper bag body is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper bags, and particularly relates to an environmentally friendly high-strength leakage-proof powder paper bag. Background Art

[0002] Woven bag composite kraft paper bag is a packaging bag that is composited with woven bag and kraft paper. It is usually composed of two layers of materials: the outer layer is a woven bag and the inner layer is kraft paper. Woven bags are usually made of plastic materials such as polypropylene (PP) or polyethylene (PE), and have the characteristics of durability, waterproofness, and puncture resistance. Kraft paper is a paper material made of natural fibers, which has the characteristics of moisture-proof, breathable, and environmentally friendly. The structure of the woven bag composite kraft paper bag gives it dual advantages. The outer layer of the woven bag provides strength and durability, can withstand a certain weight and tension, and has a certain waterproof performance, while the inner layer of kraft paper provides a certain moisture-proof and breathable performance, which is suitable for some occasions where items need to be kept dry and ventilated.

[0003] Traditional packaging bags made of composite woven bags and kraft paper materials are generally sealed by sewing the upper and lower parts with stitches. The surface of kraft paper is relatively weak and easily worn and scratched. During handling and transportation, composite kraft paper bags are prone to friction with other objects or surfaces, resulting in wear of the bag body and damage to the kraft paper layer, especially at both ends and four corners of the entire packaging bag, which are relatively highly worn and easily damaged and leaked, thereby reducing their service life and durability. Therefore, we hope to design a paper bag with a new structure to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an environmentally friendly high-strength leak-proof powder paper bag to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: an environmentally friendly high-strength leak-proof powder paper bag, comprising: a paper bag body, a first reinforcing part and a second reinforcing part, wherein the first reinforcing part is integrally provided at the upper end of the paper bag body, and the second reinforcing part is integrally provided at the lower end of the paper bag body;

[0006] The reinforcing part 1 includes a sealing part 1 and a bending edge 1, the upper end of the paper bag body 1 is sewn by stitching to form the sealing part 1, the upper end of the bending edge 1 is integrally arranged with the upper end of the sealing part 1, and the bending edge 1 is sleeved on the outer wall of the upper end of the paper bag body;

[0007] The second reinforcement part includes a second packaging part and a second bending edge. The lower end of the paper bag body is sewn by stitching to form the second packaging part. The lower end of the second bending edge is integrally arranged with the lower end of the second packaging part. The second bending edge is mounted on the outer wall of the lower end of the paper bag body.

[0008] As a preferred embodiment, the paper bag body includes a film layer 1, a kraft paper layer 1 and a linen layer, the film layer 1 is compounded on the inner wall of the kraft paper layer 1, and the outer wall of the kraft paper layer 1 is fixedly connected to the inner wall of the linen layer. In actual use, by compounding the kraft paper layer 1 and the kraft paper layer 2 on the inner and outer sides of the linen layer respectively, not only can the use strength of the entire paper bag be improved, but the components of the paper bag body, the reinforcement part 1 and the reinforcement part 2, namely the film layer 1, the kraft paper layer 1, the linen layer, the film layer 2 and the kraft paper layer 2, are all naturally degradable materials, making the paper bag more environmentally friendly.

[0009] As a preferred embodiment, the outer wall of the linen layer is fixedly connected to the inner wall of the second kraft paper layer, and the outer wall of the second kraft paper layer is composited with the second film layer.

[0010] As a preferred embodiment, the thickness of the kraft paper layer 1 is less than the thickness of the kraft paper layer 2, and the film layer 1 and the film layer 2 are both made of a biodegradable plastic.

[0011] As a preferred embodiment, the composition structure of the paper bag body is the same as the composition structure of the reinforcement part one, and the composition structure of the paper bag body is the same as the composition structure of the reinforcement part two. By providing the reinforcement part one and the reinforcement part two, the use strength of the upper end, the lower end and the four easily worn corners of the paper bag body can be improved, which greatly enhances the use strength of the entire paper bag, and effectively avoids the problem of small holes caused by wear on the upper end, the lower end and the four easily worn corners of the paper bag body, which causes powder leakage from the paper bag body.

[0012] As a preferred implementation, the height of the bending edge 1 is smaller than the height of the bending edge 2, and the height of the bending edge 2 is one third of the height of the paper bag body.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are as follows: by changing the components of the paper bag body, the reinforcement part 1 and the reinforcement part 2, it is changed into an integral structure consisting of the film layer 1, the kraft paper layer 1, the linen layer, the film layer 2 and the kraft paper layer 2, the film layer 1, the kraft paper layer 1, the linen layer, the film layer 2 and the kraft paper layer 2 are all naturally degradable materials, making the paper bag more environmentally friendly, and by compounding the kraft paper layer 1 and the kraft paper layer 2 on the inner and outer sides of the linen layer respectively, the use strength of the entire paper bag can be greatly improved;

[0014] By providing the reinforcement part 1 and the reinforcement part 2, in actual use, the reinforcement part 1 and the reinforcement part 2 are respectively integrated with the upper end and the lower end of the paper bag body. When the entire paper bag is unfolded, the reinforcement part 1, the reinforcement part 2 and the paper bag body form a cylindrical structure as a whole. When loading an object, firstly, the part between the lower end of the paper bag body and the upper end of the reinforcement part 2 is sealed by sewing to form the sealing part 2, and then the excess bending edge 2 is folded upward and mounted on the lower side of the paper bag body (in actual use, the bending edge 2 can also be fixed by glue). When the object is loaded, Afterwards, an external packaging device is used to seal the portion between the paper bag body and the reinforcement portion 1 with stitches to form a packaging portion 1, and then the excess bent edge 1 is folded downward and mounted on the upper side of the paper bag body (in actual use, the bent edge 1 can also be fixed by gluing), which can improve the use strength of the upper and lower ends of the paper bag body and four easily worn corners, greatly enhance the use strength of the entire paper bag, and effectively avoid the problem of leakage of the paper bag body due to small holes caused by wear on the upper and lower ends of the paper bag body and four easily worn corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is an overall structural schematic diagram of an environmentally friendly high-strength leak-proof powder paper bag.

[0017] Figure 2 It is a schematic diagram of the unfolding structure of the second reinforcement part of an environmentally friendly high-strength leak-proof powder paper bag of the utility model.

[0018] Figure 3 This is a schematic diagram of the composition structure of the paper bag body of an environmentally friendly high-strength leak-proof powder paper bag of the utility model.

[0019] In the figure, 100-paper bag body, 110-film layer 1, 120-kraft paper layer 1, 130-linen layer, 140-kraft paper layer 2, 150-film layer 2;

[0020] 200-reinforcement part 1, 210-packaging part 1, 220-bending edge 1;

[0021] 300 - reinforcing part 2, 310 - packaging part 2, 320 - bending edge 2. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: an environmentally friendly high-strength leak-proof powder paper bag, comprising: a paper bag body 100, a reinforcing part 1 200 and a reinforcing part 2 300, wherein the upper end of the paper bag body 100 is integrally provided with the reinforcing part 1 200, and the lower end of the paper bag body 100 is integrally provided with the reinforcing part 2 300;

[0024] The reinforcing part 200 includes a sealing part 210 and a bending edge 220. The upper end of the paper bag body 100 is sewn by stitching to form the sealing part 210. The upper end of the bending edge 220 is integrally arranged with the upper end of the sealing part 210. The bending edge 220 is sleeved on the outer wall of the upper end of the paper bag body 100.

[0025] The reinforcing part 300 includes a sealing part 310 and a bending edge 320. The sealing part 310 is formed by sewing a lower end of the paper bag body 100 with stitches. The lower end of the bending edge 320 is integrally arranged with the lower end of the sealing part 310. The bending edge 320 is mounted on the outer wall of the lower end of the paper bag body 100.

[0026] See also Figure 3 The paper bag body 100 includes a film layer 110, a kraft paper layer 120 and a linen layer 130. The film layer 110 is compounded on the inner wall of the kraft paper layer 120, and the outer wall of the kraft paper layer 120 is fixedly connected to the inner wall of the linen layer 130. In actual use, by compounding the kraft paper layer 120 and the kraft paper layer 2 140 on the inner and outer sides of the linen layer 130 respectively, not only the use strength of the entire paper bag can be improved, but also the components of the paper bag body 100, the reinforcement part 1 200 and the reinforcement part 2 300, namely the film layer 110, the kraft paper layer 120, the linen layer 130, the film layer 2 150 and the kraft paper layer 2 140 are all naturally degradable materials, making the paper bag more environmentally friendly.

[0027] The outer wall of the linen layer 130 is fixedly connected to the inner wall of the second kraft paper layer 140 , and the outer wall of the second kraft paper layer 140 is compounded with the second film layer 150 .

[0028] The thickness of the kraft paper layer 120 is smaller than that of the kraft paper layer 2 140 . The film layer 110 and the film layer 2 150 are both made of a biodegradable plastic.

[0029] As the first embodiment of the utility model, by changing the components of the paper bag body 100, the reinforcement part 1 200 and the reinforcement part 2 300, it is changed into an integral structure consisting of a film layer 110, a kraft paper layer 120, a linen layer 130, a film layer 2 150 and a kraft paper layer 2 140. The film layer 110, the kraft paper layer 120, the linen layer 130, the film layer 2 150 and the kraft paper layer 2 140 are all made of naturally degradable materials, making the paper bag more environmentally friendly. By compounding the kraft paper layer 120 and the kraft paper layer 2 140 on the inner and outer sides of the linen layer 130 respectively, the use strength of the entire paper bag can be greatly improved.

[0030] See also Figures 1 to 3 The composition structure of the paper bag body 100 is the same as the composition structure of the reinforcement part 1 200, and the composition structure of the paper bag body 100 is the same as the composition structure of the reinforcement part 2 300. By setting the reinforcement part 1 200 and the reinforcement part 2 300, the use strength of the upper end, the lower end and the four easily worn corners of the paper bag body 100 can be improved, which greatly enhances the use strength of the entire paper bag, and effectively avoids the problem of small holes caused by wear at the upper end, the lower end and the four easily worn corners of the paper bag body 100, which causes the paper bag body 100 to leak powder.

[0031] The height of the first bending edge 220 is smaller than the height of the second bending edge 320 , and the height of the second bending edge 320 is one third of the height of the paper bag body 100 .

[0032] As a second embodiment of the utility model, based on the above-mentioned first embodiment, in actual use, the reinforcing part 1 200 and the reinforcing part 2 300 are respectively integrated with the upper end and the lower end of the paper bag body 100. When the entire paper bag is unfolded, the reinforcing part 1 200, the reinforcing part 2 300 and the paper bag body 100 are formed into a cylindrical structure as a whole. When the object is loaded, the part between the lower end of the paper bag body 100 and the upper end of the reinforcing part 2 300 is firstly sealed by sewing to form the sealing part 2 310, and then the excess bending edge 2 320 is folded upward and mounted on the lower side of the paper bag body 100 (in actual use, the bending edge 2 320 can also be fixed by glue). 20), after the objects are loaded, the part between the paper bag body 100 and the reinforcement part 200 is sealed by an external sealing device with stitches to form a sealing part 210, and then the excess bending edge 220 is folded downward and mounted on the upper side of the paper bag body 100 (in actual use, the bending edge 220 can also be fixed by glue), which can improve the use strength of the upper end, lower end and four easily worn corners of the paper bag body 100, greatly enhance the use strength of the entire paper bag, and effectively avoid the problem of leakage of the paper bag body 100 due to small holes caused by wear on the upper end, lower end and four easily worn corners of the paper bag body 100.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly high-strength leak-proof powder paper bag, comprising: A paper bag body (100), a reinforcement part 1 (200) and a reinforcement part 2 (300), characterized in that the upper end of the paper bag body (100) is integrally provided with the reinforcement part 1 (200), and the lower end of the paper bag body (100) is integrally provided with the reinforcement part 2 (300); The reinforcing portion 1 (200) comprises a sealing portion 1 (210) and a bending edge 1 (220); the upper end of the paper bag body (100) is sewn by stitching to form the sealing portion 1 (210); the upper end of the bending edge 1 (220) is integrally arranged with the upper end of the sealing portion 1 (210); and the bending edge 1 (220) is sleeved on the outer wall of the upper end of the paper bag body (100); The reinforcing portion 2 (300) comprises a sealing portion 2 (310) and a bending edge 2 (320); the sealing portion 2 (310) is formed by sewing a lower end of the paper bag body (100) with stitches; the lower end of the bending edge 2 (320) is integrally arranged with the lower end of the sealing portion 2 (310); and the bending edge 2 (320) is mounted on the outer wall of the lower end of the paper bag body (100).

2. An environmentally friendly high-strength leak-proof powder paper bag as claimed in claim 1, characterized in that: The paper bag body (100) comprises a film layer (110), a kraft paper layer (120) and a linen layer (130); the film layer (110) is laminated on the inner wall of the kraft paper layer (120); and the outer wall of the kraft paper layer (120) is fixedly connected to the inner wall of the linen layer (130).

3. An environmentally friendly high-strength leak-proof powder paper bag as claimed in claim 2, characterized in that: The outer wall of the linen layer (130) is fixedly connected to the inner wall of the second kraft paper layer (140), and the outer wall of the second kraft paper layer (140) is composited with a second film layer (150).

4. An environmentally friendly high-strength leak-proof powder paper bag as claimed in claim 3, characterized in that: The thickness of the kraft paper layer one (120) is smaller than the thickness of the kraft paper layer two (140), and the film layer one (110) and the film layer two (150) are both made of a biodegradable plastic.

5. The environmentally friendly high-strength leak-proof powder paper bag according to claim 4, characterized in that: The composition structure of the paper bag body (100) is the same as the composition structure of the reinforcement part 1 (200), and the composition structure of the paper bag body (100) is the same as the composition structure of the reinforcement part 2 (300).

6. An environmentally friendly high-strength leak-proof powder paper bag as claimed in claim 5, characterized in that: The height of the first bending edge (220) is less than the height of the second bending edge (320), and the height of the second bending edge (320) is one third of the height of the paper bag body (100).

Images