Ultraviolet-resistant plastic woven bag
By designing a UV-blocking film and an anti-corrosion film structure in the plastic woven bag, the problem of easy damage to the UV coating is solved, achieving effective protection against UV rays under different usage conditions and extending the service life of the woven bag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MULENG SHENGHUA PACKAGING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
When using traditional plastic woven bags, the UV coating is easily damaged by friction, leading to a decrease in UV resistance.
A UV-resistant plastic woven bag was designed, which adopts a UV-blocking film and an anti-corrosion film structure. The UV-blocking film can be folded inside the woven bag for protection, and can be pulled out from the inside to cover the outside when filling or transporting. It is fixed by hook and loop fasteners to prevent friction damage.
It effectively protects the UV-blocking film from friction damage, extends the service life of woven bags, improves UV resistance, and avoids performance degradation caused by film damage.
Smart Images
Figure CN224198280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of woven bag technology, specifically to a plastic woven bag that is resistant to ultraviolet light. Background Technology
[0002] Plastic woven bags, with their advantages of low cost, high strength, light weight, and ease of processing, are widely used in many fields such as agriculture, chemical industry, construction, and logistics. For example, they are used in agriculture to store grains and fertilizers; in the chemical industry to package various chemical raw materials; in the construction industry to hold building materials such as cement and sand; and in logistics transportation as packaging containers for general goods. However, traditional plastic woven bags are easily affected by ultraviolet (UV) radiation when used or stored outdoors. UV radiation can trigger chemical reactions such as the breakage and cross-linking of plastic molecular chains, leading to aging of the plastic woven bags. This manifests as surface discoloration, hardening and brittleness, and a decline in mechanical properties, significantly shortening the lifespan of the woven bags and limiting their application in outdoor environments.
[0003] In recent years, in addition to adding UV absorbers and light stabilizers, blending modification technology and surface treatment technology have also been widely used. By adding other functional materials, such as nanomaterials and graphene, to plastic raw materials, and by coating or laminating the surface of woven bags, the UV resistance, mechanical properties, and surface properties of plastic woven bags have been further improved, enabling them to better meet the needs of different application scenarios.
[0004] However, although coating and lamination processes can resist ultraviolet rays, woven bags are inevitably subjected to friction during use. Over time, ultraviolet rays damage the lamination, leading to a decrease in the ultraviolet resistance of the woven bags. Utility Model Content
[0005] This invention addresses the technical problem that woven bags inevitably suffer friction during use, leading to damage to the UV coating and a decrease in the UV resistance of the woven bags. Therefore, it provides a UV-resistant plastic woven bag.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic woven bag resistant to ultraviolet rays, comprising: a woven bag body, an ultraviolet blocking film connected to the open end of the woven bag body, the ultraviolet blocking film being a thin film structure with open ends and hollow, and one open end of the ultraviolet blocking film being connected to the open end of the woven bag body.
[0007] Preferably, the woven bag body is provided with an anti-corrosion film, which is a thin film structure with an open end and hollow. The open end of the anti-corrosion film is connected to the open end of the woven bag body. When the ultraviolet blocking film is located inside the woven bag body, it is also located inside the anti-corrosion film.
[0008] Preferably, the length of the UV-blocking film is greater than the length of the woven bag body.
[0009] Preferably, the lower ends of the UV-blocking film are connected to hook-and-loop fasteners and velvet-side fasteners on both sides.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] When not containing raw materials, the UV blocking film is located inside the woven bag body. At this time, the woven bag body is folded and not exposed to light, so there is no need to protect against UV rays. The woven bag body protects the internal UV blocking film from damage. When filling or transporting raw materials, the UV blocking film is lifted out from inside the woven bag body and rolled up to the top of the woven bag body to prevent the UV blocking film from being damaged by friction from the raw materials. When the raw materials are placed still, the UV blocking film is placed on the outside of the woven bag body to prevent UV damage to the woven bag body. When placed, the UV blocking film will only slide when it is rubbed and will not be damaged by friction. In this way, the UV blocking film is unlikely to be damaged by friction when not filled, filled and transported, or placed still, overcoming the problem of easy friction damage to the UV-coated woven bag during use in existing technologies.
[0012] 2. By using hook and loop fasteners together, the bottom of the UV blocking film is fixed and sealed when it is placed on the outside of the woven bag, preventing damage to the UV blocking film due to wind or other reasons. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional fracture diagram of the structure of this utility model;
[0015] Figure 3 This utility model Figure 2 An enlarged structural diagram.
[0016] In the picture: 1. Woven bag body; 2. UV blocking film; 3. Anti-corrosion film; 4. Hook and loop fastener; 5. Fleece fastener. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.
[0019] The present invention will now be described in detail with reference to the accompanying drawings.
[0020] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a plastic woven bag that is resistant to ultraviolet light, comprising: a woven bag body 1, an ultraviolet blocking film 2 connected to the open end of the woven bag body 1, the ultraviolet blocking film 2 being a thin film structure with open ends and hollow, and one open end of the ultraviolet blocking film 2 being connected to the open end of the woven bag body 1.
[0021] When not containing raw materials, the UV blocking film 2 is located inside the woven bag body 1. At this time, the woven bag body 1 is folded and not exposed to light, protecting the internal UV blocking film 2 from damage. When filling or transporting raw materials, the UV blocking film 2 is lifted out from inside the woven bag body 1 and rolled up to the top of the woven bag body 1 to prevent the UV blocking film 2 from being damaged by friction from the raw materials. When the raw materials are placed still, the UV blocking film 2 is placed over the outside of the woven bag body 1 to prevent UV damage to the woven bag body 1. When placed, the UV blocking film 2 will only slide when subjected to friction, without friction damage. Thus, the UV blocking film 2 is unlikely to be damaged by friction when not filled, filled and transported, or placed still, overcoming the problem of easy friction damage to the UV-coated woven bag during use in existing technologies.
[0022] The woven bag body 1 is provided with an anti-corrosion film 3. The anti-corrosion film 3 is a thin film structure with an open end and hollow. The open end of the anti-corrosion film 3 is connected to the open end of the woven bag body 1. When the ultraviolet blocking film 2 is located inside the woven bag body 1, it is also located inside the anti-corrosion film 3.
[0023] The anti-corrosion film 3 is located inside the woven bag body 1, and protects the inside of the woven bag body 1 from damage when containing raw materials.
[0024] The length of the UV blocking film 2 is greater than the length of the woven bag body 1.
[0025] Ensure that the UV blocking film 2 can completely cover the outside of the woven bag body 1, blocking UV rays without any blind spots.
[0026] The lower ends of the UV blocking film 2 are connected to hook-and-loop fasteners 4 and velvet-faced fasteners 5 on both sides.
[0027] After the UV blocking film 2 is covered on the outside of the woven bag body 1, the bottom of the UV blocking film 2 is fixed and sealed by the hook-and-loop fastener 4 and the fleece fastener 5 to prevent the UV blocking film 2 from being damaged due to wind or other reasons.
[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A UV-resistant plastic woven bag, characterized in that: include: The woven bag body (1) has an ultraviolet blocking film (2) connected to its open end. The ultraviolet blocking film (2) is a thin film structure with open ends and hollow. One open end of the ultraviolet blocking film (2) is connected to the open end of the woven bag body (1).
2. The UV-resistant plastic woven bag according to claim 1, characterized in that: The woven bag body (1) is provided with an anti-corrosion film (3). The anti-corrosion film (3) is a thin film structure with an open end and hollow. The open end of the anti-corrosion film (3) is connected to the open end of the woven bag body (1). When the ultraviolet blocking film (2) is located inside the woven bag body (1), it is also located inside the anti-corrosion film (3).
3. The ultraviolet-resistant plastic woven bag according to claim 1, characterized in that: The length of the ultraviolet blocking film (2) is greater than the length of the woven bag body (1).
4. A UV-resistant plastic woven bag according to claim 3, characterized in that: The lower ends of the ultraviolet blocking film (2) are connected to hook-and-loop fasteners (4) and velvet-faced fasteners (5), respectively.