Multi-layer waterproof regenerated plastic woven bag
The woven bags with multi-layered structural design solve the problems of poor waterproofing and slow degradation, achieving a highly efficient waterproof and environmentally friendly woven bag design.
Patent Information
- Application Number
- CN202520570422.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing woven bags generally have poor waterproofing, resulting in damp and non-biodegradable contents, causing environmental pollution.
The woven bag features a multi-layered structure design, including a combination of zippers, sealing strips, Velcro, nylon layers, PBAT layers, polylactic acid layers, PBS layers, and low-density polyethylene layers, achieving multiple seals and biodegradable properties.
It improves the waterproof performance of woven bags, while also being biodegradable, reducing environmental pollution and extending their service life.
Smart Images

Figure CN223920012U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of woven bag, concretely to a multilayer waterproof regenerated plastic woven bag. BACKGROUND
[0002] Woven bag, also known as snake skin bag, is a kind of plastic bag, mainly used for packaging, woven bag has high-temperature resistance, moisture resistance, mildew resistance, air permeability and other high-quality characteristics, is solid and durable, is convenient to stack, is not easy to slide, the surface is flat after loading goods, the cleanliness is good, can reduce breakage in transportation.
[0003] But the existing woven bag is generally waterproof, which can easily cause the internal goods to be damp, and is not easy to degrade, thereby causing pollution to the environment, so a multilayer waterproof regenerated plastic woven bag is proposed to solve the above problems. UTILITY MODEL CONTENT
[0004] In view of the defects of the prior art, the utility model provides a multilayer waterproof regenerated plastic woven bag, which has the advantages of waterproof and degradable, solves the problem that the existing woven bag is generally waterproof, which can easily cause the internal goods to be damp, and is not easy to degrade, thereby causing pollution to the environment.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a multilayer waterproof regenerated plastic woven bag, comprising a woven bag body, the top of the woven bag body is connected with an extension bag, the front and rear sides of the woven bag body are fixedly installed with handles, the inside of the woven bag body is provided with a waterproof mechanism;
[0006] The waterproof mechanism comprises a zipper, the inside of the woven bag body is installed with a zipper, the inner wall of the extension bag is fixedly installed with a sealing strip, the outside of the extension bag is fixedly installed with a limiting strip, the outside of the woven bag body is fixedly installed with a magic tape, the inside of the woven bag body is fixedly installed with a bottom base layer, the inside of the bottom base layer is installed with a tensile layer, the inside of the tensile layer is provided with a first waterproof layer, the inside of the first waterproof layer is installed with a second waterproof layer, and the inside of the woven bag body is installed with an inner lining layer.
[0007] Further, the front side of the extension bag is provided with a fold line, the number of magic tapes is two, and the two magic tapes are located on the front and rear sides of the woven bag body.
[0008] Further, the number of sealing strips is two, and the two sealing strips are connected with the inner walls of the front and rear sides of the extension bag.
[0009] Further, the bottom of the bottom base layer is connected with the inner wall of the woven bag body and is sleeved on the outside of the tensile layer.
[0010] Further, the base layer is a nylon layer, the tensile layer is a PBAT layer, and the first waterproof layer is a polylactic acid layer.
[0011] Further, the second waterproof layer is a PBS layer, the inner liner layer is a linear low-density polyethylene layer, and the second waterproof layer is sleeved outside the inner liner layer.
[0012] Compared with the prior art, the technical scheme has the following beneficial effects:
[0013] 1. The multi-layer waterproof regenerated plastic woven bag achieves the preliminary waterproof effect through the double sealing inside the woven bag body.
[0014] 2. The multi-layer waterproof regenerated plastic woven bag further improves the waterproof effect of the woven bag body through the mutual cooperation of the structures of the waterproof mechanism, and the multiple materials are degradable, thereby realizing the protection of the environment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a front view three-dimensional schematic diagram of the utility model;
[0016] Figure 2 It is a front view schematic diagram of the utility model;
[0017] Figure 3 It is a rear view schematic diagram of the utility model;
[0018] Figure 4 It is a sectional view schematic diagram of the utility model;
[0019] Figure 5 It is a local three-dimensional schematic diagram of the utility model.
[0020] In the figure: 1, woven bag body, 2, extension bag, 3, handle, 4, waterproof mechanism, 401, zipper, 402, sealing strip, 403, limiting strip, 404, magic tape, 405, base layer, 406, tensile layer, 407, first waterproof layer, 408, second waterproof layer, 409, inner liner layer. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0022] Please refer to Figures 1-5The multi-layer waterproof regenerated plastic woven bag in the embodiment comprises a woven bag body 1, an extension bag 2 connected to the top of the woven bag body 1, handles 3 fixedly installed on the front and back sides of the woven bag body 1, and a waterproof mechanism 4 arranged in the woven bag body 1.
[0023] In Figure 4 and Figure 5 , the waterproof mechanism 4 comprises a zipper 401, the zipper 401 is installed in the woven bag body 1, a sealing strip 402 is fixedly installed on the inner wall of the extension bag 2, a limiting strip 403 is fixedly installed on the outside of the extension bag 2, a magic tape 404 is fixedly installed on the outside of the woven bag body 1, a bottom base layer 405 is fixedly installed in the woven bag body 1, a tensile layer 406 is installed in the bottom base layer 405, a first waterproof layer 407 is arranged in the tensile layer 406, a second waterproof layer 408 is installed in the first waterproof layer 407, and an inner lining layer 409 is installed in the woven bag body 1.
[0024] In Figure 1 and Figure 2 , the front side of the extension bag 2 is provided with a fold line, the number of the magic tape 404 is two, and the two magic tapes 404 are respectively located on the front and back sides of the woven bag body 1.
[0025] Specifically, by setting the limiting strip 403, holding the limiting strip 403, and folding the extension bag 3 downward along the fold line, the two magic tapes 404 are adhered to each other after the folding is completed, so that the sealing and waterproof effect is further achieved.
[0026] In Figure 1 and Figure 3 , the number of the sealing strip 402 is two, and the two sealing strips 402 are respectively connected to the inner walls of the front and back sides of the extension bag 2.
[0027] Specifically, by setting the sealing strip 402, the front and back sides of the extension bag 2 are aligned, and the sealing strip 402 is extruded in the opposite direction, so that the woven bag body 1 is sealed again.
[0028] In Figure 2 and Figure 3 , the bottom of the bottom base layer 405 is connected to the inner wall of the woven bag body 1 and is sleeved on the outside of the tensile layer 406.
[0029] Specifically, by setting the bottom base layer 405, the nylon layer has good wear resistance, so as to prevent the woven bag body 1 from being broken and prolong the service life of the woven bag body 1.
[0030] In Figure 2 and Figure 4 , the bottom base layer 405 is a nylon layer, the tensile layer 406 is a PBAT layer, and the first waterproof layer 407 is a polylactic acid layer.
[0031] Specifically, by setting the tensile layer 406, the PBAT layer has good ductility and elongation at break, thereby preventing the woven bag body 1 from being torn due to pulling, and at the same time, the PBAT layer can be completely decomposed into water, carbon dioxide and organic matter by microorganisms and enzymes within a few weeks in an industrial composting environment, without toxic and harmful substances remaining, which is very friendly to the environment. By setting the first waterproof layer 407 and the second waterproof layer 408, the polylactic acid layer and the PBS layer both have good waterproof and moisture-proof effects, and are easy to degrade and have no pollution to the environment.
[0032] In Figure 3 and Figure 4 , the second waterproof layer 408 is a PBS layer, the inner liner layer 409 is a linear low-density polyethylene layer, and the second waterproof layer 408 is sleeved outside the inner liner layer 409.
[0033] Specifically, by setting the inner liner layer 409, the low-density polyethylene layer has good wear resistance and puncture resistance, thereby protecting the remaining layers, and at the same time, being a degradable material, which is very friendly to the environment.
[0034] In implementation, the following steps are used: when the article is placed, the zipper 401 is pulled, then the extension bag 2 is closed, the front and back sides of the extension bag 2 are aligned, the sealing strip 402 is squeezed in opposite directions, thereby sealing the woven bag body 1 again, then the limiting strip 403 is held and the extension bag 3 is folded downward along the fold line, after the folding is completed, the two magic tapes 404 are attached to each other, thereby further achieving the sealing and waterproof effect, and finally the first waterproof layer 407 and the second waterproof layer 408 inside the woven bag body 1 protect the internal articles, thereby further achieving the waterproof effect.
[0035] In summary, by setting the zipper 401, when the woven bag body 1 needs to be sealed, first pull the zipper 401 to close the feeding port, so as to achieve the effect of preliminary waterproofing, by setting the sealing strip 402, align the front and back of the extension bag 2, and extrude the sealing strip 402 in the opposite direction, thereby sealing the woven bag body 1 twice, by setting the limiting strip 403, holding the limiting strip 403, folding the extension bag 3 downward along the fold line, and when the folding is completed, the two magic tapes 404 are attached to each other, thereby further achieving the effect of sealing and waterproofing, by setting the base layer 405, the nylon layer has good wear resistance, thereby preventing the woven bag body 1 from breaking, and prolonging the service life of the woven bag body 1, by setting the anti-pulling layer 406, the PBAT layer has good ductility and elongation at break, thereby preventing the woven bag body 1 from breaking due to pulling, and at the same time, the PBAT layer can be completely decomposed into water, carbon dioxide and organic matter by microorganisms and enzymes within a few weeks in an industrial composting environment, without toxic and harmful substances remaining, which is very friendly to the environment, by setting the first waterproof layer 407 and the second waterproof layer 408, the polylactic acid layer and the PBS layer both have good waterproof and moisture-proof effects, and are easy to degrade, without pollution to the environment, by setting the inner lining layer 409, the low-density polyethylene layer has good wear resistance and puncture resistance, thereby protecting the remaining layers, and at the same time, the degradable material is very friendly to the environment.
[0036] The specific model and specifications of each device in this document need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.
[0037] It should be noted that in this document, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.
[0038] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A multi-layered waterproofed recycled plastic woven bag comprising a woven bag body (1), characterized in that: The top of the woven bag body (1) is connected with an extension bag (2), both sides of the woven bag body (1) are fixedly installed with handles (3), and the inside of the woven bag body (1) is provided with a waterproof mechanism (4); The waterproof mechanism (4) comprises a zipper (401), the inside of the woven bag body (1) is installed with the zipper (401), the inner wall of the extension bag (2) is fixedly installed with a sealing strip (402), the outside of the extension bag (2) is fixedly installed with a limiting strip (403), the outside of the woven bag body (1) is fixedly installed with a magic tape (404), the inside of the woven bag body (1) is fixedly installed with a bottom base layer (405), the inside of the bottom base layer (405) is installed with a tensile layer (406), the inside of the tensile layer (406) is provided with a first waterproof layer (407), the inside of the first waterproof layer (407) is installed with a second waterproof layer (408), and the inside of the woven bag body (1) is installed with an inner lining layer (409).
2. A multi-layered waterproofed recycled plastic woven bag as claimed in claim 1, wherein: The front side of the extension bag (2) is provided with a folding line, the number of the magic tape (404) is two, and the two magic tapes (404) are located on the front and rear sides of the woven bag body (1) respectively.
3. A multi-layered waterproofed recycled plastic woven bag as claimed in claim 1, wherein: The number of the sealing strip (402) is two, and the two sealing strips (402) are connected with the inner walls of the front and rear sides of the extension bag (2) respectively.
4. A multi-layered waterproofed recycled plastic woven bag as claimed in claim 1, wherein: The bottom of the bottom base layer (405) is connected with the inner wall of the woven bag body (1) and is sleeved on the outside of the tensile layer (406).
5. A multi-layered waterproofed recycled plastic woven bag as claimed in claim 1, wherein: The bottom base layer (405) is a nylon layer, the tensile layer (406) is a PBAT layer, and the first waterproof layer (407) is a polylactic acid layer.
6. A multi-layered waterproofed recycled plastic woven bag as claimed in claim 1, wherein: The second waterproof layer (408) is a PBS layer, the inner lining layer (409) is a linear low-density polyethylene layer, and the second waterproof layer (408) is sleeved on the outside of the inner lining layer (409).