Moistureproof and waterproof polypropylene woven bag

Abstract

The utility model discloses a moisture-proof and waterproof polypropylene woven bag, which relates to the technical field of plastic woven bags, and comprises a woven bag main body, one side of the woven bag main body is fixedly connected with a reinforcing rib, one side of the reinforcing rib is fixedly connected with a reinforcing ring, in the moisture-proof and waterproof polypropylene woven bag, one side of the woven bag main body and one side of an extension bag are respectively provided with a primary buckle and a secondary buckle, the contact area of the extension bag and the woven bag body can be increased by buckling the female buckle and the male buckle and bonding the first hook-and-loop fastener body with the second hook-and-loop fastener, so that the connection tightness of the extension bag and the inner wall of the woven bag body is improved, the use position of the extension bag is adjusted, the capacity of the whole woven bag can be changed, the use applicability of the woven bag is improved, and the service life of the woven bag is prolonged. The anti-aging protective layer is compounded on the outer sides of the waterproof layer and the connecting layer and can wrap and protect the outer portions of the waterproof layer and the connecting layer, meanwhile, the anti-aging effect of the woven bag is improved, and the service life of the woven bag is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic woven bags, in particular to a moisture-proof and waterproof polypropylene woven bag. Background Art

[0002] Plastic woven bags are mainly made of polypropylene bags and polyethylene bags. They are also divided into bottom-sewn bags and side-sewn bottom-sewn bags according to the sewing method. They are currently widely used as a packaging material for fertilizers, chemical products, and other items.

[0003] For example, Chinese patent CN110217476A discloses a waterproof and moisture-proof woven bag and a preparation method thereof, which includes an outer layer and an inner lining layer. The inner lining layer includes the following components in parts by weight: 35 to 45 parts of linear low-density polyethylene, 10 to 15 parts of low-density polyethylene, 1 to 5 parts of masterbatch, 1.1 to 1.5 parts of functional additives and 30 to 35 parts of ethylene-vinyl acetate copolymer; the outer layer includes the following components in parts by weight: 80 to 90 parts of polypropylene, 5 to 10 parts of masterbatch and 1 to 4 parts of functional additives.

[0004] In the above patent, although the problem of unsatisfactory air permeability of woven bags is solved by ethylene-vinyl acetate copolymer, the volume size of general woven bags is fixed during production. When using a drawstring woven bag to hold objects, the drawstring can assist in the contraction of the bag opening, thereby preventing the objects from falling out. However, when the volume of some objects is small and the number of objects contained in the bag is small, when the drawstring is used to contract the bag opening, a large amount of space remains inside the woven bag, which wastes storage space. The volume of the bag cannot be adjusted according to the size of the objects and the amount contained, and the applicability is not high. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that when some objects are small in size and the number of objects contained in the bag is small, a large amount of space remains inside the woven bag when the bag opening is contracted by using a drawstring, storage space is wasted, the volume of the bag cannot be adjusted according to the size of the objects and the amount contained, and the applicability is low. A moisture-proof and waterproof polypropylene woven bag is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a moisture-proof and waterproof polypropylene woven bag, comprising a woven bag main body, one side of the woven bag main body is fixedly connected to a reinforcing rib, one side of the reinforcing rib is fixedly connected to a reinforcement ring, one side of the reinforcement ring is fixedly connected to an extension bag, the extension bag and the inner wall of the woven bag main body are respectively fixedly connected with a sub-buckle and a female buckle, one side of the sub-buckle is buckled with the female buckle, one side of the inner wall of the woven bag main body is fixedly connected with Velcro 2, one side of the Velcro 2 is bonded with Velcro body 1, and one side of the Velcro body 1 is fixedly connected to the inner wall of the extension bag.

[0007] Preferably, a drawer cavity is provided inside the extension bag, one side of the drawer cavity is fixedly connected to a first strap, and one side of the first strap passes through the extension bag.

[0008] Preferably, a second binding strap passes through one side of the woven bag main body, and one end of the second binding strap is installed in the woven bag main body.

[0009] Preferably, the woven bag body comprises a moisture-proof protective layer, a connecting layer and an anti-aging protective layer, and one side of the moisture-proof protective layer is compounded with a polypropylene base layer.

[0010] Preferably, one side of the polypropylene base layer is compounded with a connecting layer, and the thickness of the polypropylene base layer is twice that of the connecting layer.

[0011] Preferably, one side of the connecting layer is compounded with a waterproof layer.

[0012] Preferably, the connecting layer is compounded with an anti-aging protective layer, and the thickness of the anti-aging protective layer is the same as that of the connecting layer.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, a female buckle and a child buckle are respectively installed on one side of the woven bag main body and the extension bag. By fastening the female buckle and the child buckle, the Velcro body 1 is bonded to the Velcro 2, which can increase the contact area between the extension bag and the woven bag main body, thereby improving the tightness of the connection between the extension bag and the inner wall of the woven bag main body, realizing the adjustment of the use position of the extension bag, and then changing the capacity of the entire woven bag, reducing the waste of storage space, and improving the applicability of the woven bag when used.

[0015] 2. In the present invention, the anti-aging protective layer is compounded on the outside of the waterproof layer and the connecting layer, which can wrap and protect the outside of the waterproof layer and the connecting layer, while improving the anti-aging effect of the woven bag and extending the service life of the woven bag. The connecting layer is compounded with the waterproof layer to support one side of the waterproof layer, and the waterproof layer is used to provide waterproof protection for the outside of the polypropylene base layer, thereby improving the waterproof effect of the woven bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a moisture-proof and waterproof polypropylene woven bag proposed by the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the installation structure of a Velcro structure for a moisture-proof and waterproof polypropylene woven bag;

[0018] Figure 3 The utility model provides a schematic diagram of the polypropylene base structure of a moisture-proof and waterproof polypropylene woven bag;

[0019] Figure 4The utility model provides a schematic diagram of the connecting layer structure of a moisture-proof and waterproof polypropylene woven bag.

[0020] Legend: 1. Strap 1; 2. Reinforcement ring; 3. Woven bag body; 301. Moisture-proof protective layer; 302. Polypropylene base layer; 303. Connecting layer; 304. Waterproof layer; 305. Anti-aging protective layer; 4. Reinforcement ribs; 5. Strap 2; 6. Extension bag; 7. Sub-buckle; 8. Velcro body 1; 9. Velcro 2; 10. Female buckle. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1

[0024] Reference Figure 1-4 As shown: A moisture-proof and waterproof polypropylene woven bag, including a woven bag main body 3, a reinforcing rib 4 is fixedly connected to one side of the reinforcing rib 4, a reinforcement ring 2 is fixedly connected to one side of the reinforcement ring 2, an extension bag 6 is fixedly connected to the inner wall of the extension bag 6 and the woven bag main body 3, respectively, a sub-button 7 and a female buckle 10 are fixedly connected, one side of the sub-button 7 is buckled with the female buckle 10, one side of the inner wall of the woven bag main body 3 is fixedly connected to a Velcro 2 9, one side of the Velcro 2 9 is bonded with a Velcro body 1 8, one side of the Velcro body 1 8 is fixedly connected to the inner wall of the extension bag 6, a drawing cavity is opened inside the extension bag 6, a strap 1 is fixedly connected to one side of the drawing cavity, one side of the strap 1 passes through the extension bag 6, a strap 2 5 passes through one side of the woven bag main body 3, and one end of the strap 2 5 is installed in the woven bag main body 3.

[0025] The outer side of the woven bag body 3 can be reinforced by using the reinforcing ribs 4, thereby improving the strength of the woven bag body 3 and reducing the breakage of the woven bag body 3 during use. The sub-buckle 7 and the female buckle 10 facilitate the engagement or separation of one side of the extension bag 6 with the woven bag body 3, thereby adjusting the volume of the woven bag. The Velcro body 1 8 is bonded to the Velcro 2 9, which can increase the contact area between the extension bag 6 and the woven bag body 3, thereby improving the stability of the extension bag 6 when storing, and reducing the edge warping of the extension bag 6 that affects the placement of items inside the woven bag body 3. Both the strap 1 and the strap 2 5 can be pulled, and the strap 1 and the strap 2 5 can be used to tighten different positions, thereby reducing the items from falling out of the woven bag, facilitating the transportation of the items after they are placed.

[0026] Example 2

[0027] like Figure 3 and Figure 4 As shown, the woven bag body 3 includes a moisture-proof protective layer 301, a connecting layer 303 and an anti-aging protective layer 305. One side of the moisture-proof protective layer 301 is compounded with a polypropylene base layer 302, and one side of the polypropylene base layer 302 is compounded with the connecting layer 303. The thickness of the polypropylene base layer 302 is twice that of the connecting layer 303. One side of the connecting layer 303 is compounded with a waterproof layer 304, and one side of the waterproof layer 304 is compounded with the anti-aging protective layer 305. The thickness of the anti-aging protective layer 305 is the same as that of the connecting layer 303.

[0028] The moisture-proof protective layer 301 can be used to provide moisture-proof protection for the inner side of the polypropylene base layer 302, and the connecting layer 303 can assist in the compounding of the waterproof layer 304 on the outside of the polypropylene base layer 302. The waterproof layer 304 is used to provide waterproof protection for the polypropylene base layer 302, thereby improving the waterproof effect of the entire woven bag and reducing the interference of water infiltration on the materials contained in the woven bag. The anti-aging protective layer 305 is arranged on the outermost layer to avoid the direct effect of ultraviolet rays on the polypropylene base layer 302, thereby reducing aging and damage of the polypropylene base layer 302, and thus extending the overall service life of the woven bag.

[0029] The method of use and working principle of this device: First, the working principle of the strap 1 and the strap 2 5 is similar to that of a drawstring garbage bag. When the entire woven bag is in use, the capacity of the bag is adjusted. When the volume of the items to be placed is small, the extension bag 6 is folded along the reinforcement ring 2 toward the inside of the woven bag body 3, so that the child buckle 7 moves to the side close to the mother buckle 10, and then the child buckle 7 is fastened with the mother buckle 10, and the Velcro body 1 8 and the Velcro 2 9 are bonded. At this time, the extension bag 6 can be stored inside the woven bag body 3, and the items are placed in the woven bag body 3. The strap 2 5 can be pulled to tighten the bag opening to prevent the items from falling out. When the volume of the items is large, the child buckle 7 is separated from the mother buckle 10, and the Velcro The body 1 8 is separated from the Velcro 2 9. After putting the items in, pull the strap 1 to tighten the bag opening. When the bag opening is opened, the items inside can be quickly taken out. The woven bag is reusable. The extension bag 6 has the same structure as the woven bag body 3, wherein the anti-aging protective layer 305 contains a number of acrylic fibers inside, and an anti-aging coating is provided on the surface. The waterproof layer 304 is made of polyurethane waterproof coating. The connecting layer 303 facilitates the adhesion of the auxiliary waterproof coating to achieve the connection between the waterproof layer 304 and the polypropylene base layer 302. The moisture-proof protective layer 301 contains polyethylene. The anti-aging protective layer 305 can be used to protect the outside of the woven bag from aging, reducing the damage of ultraviolet rays to the bag.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A moisture-proof and waterproof polypropylene woven bag, comprising a woven bag body (3), characterized in that: One side of the woven bag body (3) is fixedly connected to a reinforcing rib (4), one side of the reinforcing rib (4) is fixedly connected to a reinforcing ring (2), one side of the reinforcing ring (2) is fixedly connected to an extension bag (6), the extension bag (6) and the inner wall of the woven bag body (3) are fixedly connected to a sub-button (7) and a female button (10), one side of the sub-button (7) is buckled with the female button (10), one side of the inner wall of the woven bag body (3) is fixedly connected to a second Velcro (9), one side of the second Velcro (9) is bonded to a first Velcro body (8), and one side of the first Velcro body (8) is fixedly connected to the inner wall of the extension bag (6).

2. A moisture-proof and waterproof polypropylene woven bag according to claim 1, characterized in that: A draw-out cavity is provided inside the extension bag (6), one side of the draw-out cavity is fixedly connected to a binding strap (1), and one side of the binding strap (1) passes through the extension bag (6).

3. The moisture-proof and waterproof polypropylene woven bag according to claim 1, characterized in that: A second binding belt (5) is passed through one side of the woven bag main body (3), and one end of the second binding belt (5) is installed in the woven bag main body (3).

4. The moisture-proof and waterproof polypropylene woven bag according to claim 1, characterized in that: The woven bag body (3) comprises a moisture-proof protective layer (301), a connecting layer (303) and an anti-aging protective layer (305); one side of the moisture-proof protective layer (301) is compounded with a polypropylene base layer (302).

5. The moisture-proof and waterproof polypropylene woven bag according to claim 4, characterized in that: One side of the polypropylene base layer (302) is compounded with the connecting layer (303), and the thickness of the polypropylene base layer (302) is twice that of the connecting layer (303).

6. The moisture-proof and waterproof polypropylene woven bag according to claim 5, characterized in that: One side of the connecting layer (303) is compounded with a waterproof layer (304).

7. The moisture-proof and waterproof polypropylene woven bag according to claim 6, characterized in that: One side of the waterproof layer (304) is compounded with an anti-aging protective layer (305), and the thickness of the anti-aging protective layer (305) is the same as that of the connecting layer (303).

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