Tarpaulin with high tensile strength

Abstract

According to the tarpaulin with the high tensile strength, the lower end of a wear-resistant protective layer is connected with a net-shaped reinforcing layer fixed in a bonding connection mode, the lower end of the net-shaped reinforcing layer is connected with a woven base layer fixed in a bonding connection mode, the woven base layer is formed by weaving warps and wefts, the warps are made of polypropylene fibers, and the wefts are made of polyester fibers. The lower end of the woven base layer is connected with the net-shaped reinforcing layer, the lower end of the net-shaped reinforcing layer is connected with the wear-resistant protective layer, plain woven lines are arranged on the woven base layer, polyester yarn tensile strips are connected in the plain woven lines, adhesive distribution grids are arranged on the net-shaped reinforcing layer, the adhesive distribution grids are filled with the middle buffer layer, and the polypropylene coating is arranged on the wear-resistant protective layer. The warp polypropylene fibers have good strength, wear resistance and corrosion resistance. Due to the warp and weft structure of the woven base layer, the polyester silk tensile strips in the woven base layer and the reinforcing effect of the net-shaped reinforcing layer, the whole tarpaulin has high tensile strength, and the tarpaulin can bear large tensile force in the using process.

Description

Technical Field

[0001] This utility model belongs to the field of tarpaulin production technology, specifically a tarpaulin with high tensile strength. Background Technology

[0002] Plastic woven fabric is a widely used polyethylene synthetic material. It can provide shelter from wind and rain and is widely used for covering goods, automobile transportation, and water pipe irrigation. However, many problems have been found during use, such as poor abrasion resistance, weak tear strength of the woven fabric, and insufficient pressure resistance when used as water pipes.

[0003] Therefore, a tarpaulin with high tensile strength is provided to solve the above problems. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a tarpaulin with high tensile strength, so as to at least partially solve the above technical problems.

[0005] The technical solution adopted by this utility model is as follows:

[0006] This utility model proposes a tarpaulin with high tensile strength, comprising: a wear-resistant protective layer and a woven base layer. A mesh reinforcement layer, fixed by adhesive bonding, is connected to the lower end of the wear-resistant protective layer. The woven base layer is woven from warp and weft threads, with the warp threads being polyethylene flat yarns and the weft threads being polyester yarns. The mesh reinforcement layer is connected to the lower end of the woven base layer, and the wear-resistant protective layer is connected to the lower end of the mesh reinforcement layer. The woven base layer has a plain weave pattern, within which polyester tensile strips are connected. The mesh reinforcement layer has adhesive distribution grids, filled with an intermediate buffer layer. The wear-resistant protective layer has a polypropylene coating.

[0007] As a further aspect of this utility model, the warp polypropylene filament has good strength, abrasion resistance and corrosion resistance.

[0008] As a further improvement of this utility model, the polypropylene coating is a decorative polypropylene coating.

[0009] As a further improvement of this utility model, the weft polyester filament has high tensile strength, light weight, and better softness than polyethylene flat yarn.

[0010] As a further improvement of this invention: the addition of polypropylene during the coating process enhances the adhesion between the polyester filaments and the coating layer.

[0011] As a further improvement of this utility model, the number of plain weave patterns is equal to the number of polyester tensile strips.

[0012] As a further improvement of this utility model, the number of plain weave patterns is not less than three.

[0013] As a further improvement of this invention, the shape of the adhesive distribution grid is arc-shaped.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] In this embodiment, due to the warp and weft structure of the woven base layer, the tensile strength of the polyester filament strips, and the reinforcement effect of the mesh reinforcement layer, the tarpaulin as a whole has high tensile strength. This allows the tarpaulin to withstand greater tensile forces during use, such as when setting up large tents or covering goods, it is not easily torn even under significant tension. The polypropylene coating on the abrasion-resistant protective layer and the polyester filaments used in the woven base layer both have good abrasion resistance, ensuring that the surface of the tarpaulin is not easily worn during long-term contact and friction with external objects, maintaining good integrity and thus extending the service life of the tarpaulin.

[0016] In this embodiment, the wear-resistant protective layer, the mesh reinforcement layer, and the woven base layer are bonded together to form an integral structure. When the structure is subjected to external force, the layers can work together, and the stress can be effectively transferred and dispersed between the layers, ensuring the stability of the overall structure of the tarpaulin and preventing delamination or local damage.

[0017] In this embodiment, because polypropylene enhances the adhesion between the polyester filaments and the coating layer, the coating layer of the tarpaulin is less prone to peeling off, thereby improving the tarpaulin's waterproofness, abrasion resistance, and service life. For example, during long-term outdoor use, whether subjected to rain or friction with other objects, the coating layer can remain well on the tarpaulin surface, protecting the main structure of the tarpaulin. Under various tensile conditions (such as bearing its own weight and external wind force when setting up a tent), the tarpaulin can maintain its structural integrity and is not easily torn, expanding the tarpaulin's application range. It can be used in scenarios with high strength requirements, such as tarpaulins for covering large trucks or the manufacture of large outdoor tents.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the exploded structure of the high tensile strength tarpaulin proposed in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the high tensile strength tarpaulin proposed in the embodiment of this utility model.

[0022] In the diagram: 1. Abrasion-resistant protective layer; 2. Mesh reinforcement layer; 3. Woven base layer; 4. Plain weave pattern; 5. Polyester tensile strip; 6. Adhesive distribution grid; 7. Intermediate buffer layer; 8. Polypropylene coating.

[0023] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] It is important to note that the terms "first," "second," etc., are used only to distinguish between descriptive and positional descriptions, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with "first," etc., may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0026] In the embodiments of this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding 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 utility model based on the accompanying drawings and specific circumstances.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] like Figures 1 to 2 As shown, a tarpaulin with high tensile strength includes: an abrasion-resistant protective layer 1 and a woven base layer 3. The lower end of the abrasion-resistant protective layer 1 is connected to a mesh reinforcement layer 2 fixed by an adhesive connection. The lower end of the mesh reinforcement layer 2 is connected to the woven base layer 3 fixed by an adhesive connection. The woven base layer 3 is woven from warp and weft threads. The warp threads are made of polyethylene flat yarn, and the weft threads are made of polyester yarn. The lower end of the woven base layer 3 is connected to the mesh reinforcement layer 2, and the lower end of the mesh reinforcement layer 2 is connected to the abrasion-resistant protective layer 1. The woven base layer 3 has a plain weave pattern 4, and polyester yarn tensile strips 5 are connected within the plain weave pattern 4. The mesh reinforcement layer 2 has an adhesive distribution grid 6, and the adhesive distribution grid 6 is filled with an intermediate buffer layer 7. The abrasion-resistant protective layer 1 has a polypropylene coating 8.

[0029] In the specific application of this utility model embodiment, the woven base layer 3 is woven from warp and weft threads. The warp threads are made of polyethylene flat yarn, and the weft threads are made of polyester yarn. The polyethylene flat yarn has good flexibility and a certain strength, while the polyester yarn has high strength and abrasion resistance. The weaving method of the warp and weft threads forms the basic structural framework of the tarpaulin. The presence of the plain weave pattern 4 makes the structure of the woven base layer relatively stable and flat. The polyester yarn tensile strip 5 connected in the plain weave pattern 4 further enhances the resistance of the woven base layer when subjected to tensile force. When the tarpaulin is stretched by external force, the warp and weft threads and the tensile strip work together to disperse the tensile force and prevent the tarpaulin from being easily deformed or broken.

[0030] The mesh reinforcement layer 2 is bonded to the abrasion-resistant protective layer 1 and the woven base layer 3 respectively. The mesh reinforcement layer 2 has adhesive distribution grids 6, which are filled with an intermediate buffer layer 7. During the operation of the tarpaulin, the mesh reinforcement layer 2 serves a dual function of connection and reinforcement. On one hand, it tightly connects the abrasion-resistant protective layer 1 and the woven base layer 3 together, making the entire tarpaulin structure a unified whole. On the other hand, the intermediate buffer layer 7 can cushion the tarpaulin when it is subjected to external impact or tension, dispersing stress and preventing stress concentration at a single point that could damage the tarpaulin.

[0031] The wear-resistant protective layer 1 is located on the outermost layer of the tarpaulin, and a polypropylene coating 8 is provided on it. The polypropylene coating 8 has good wear resistance and weather resistance, and can effectively resist the erosion of external environmental factors such as friction, scratches and wind and sun exposure. The wear-resistant protective layer 1 can protect the internal mesh reinforcement layer 2 and woven base layer 3, preventing them from being directly exposed to the harsh external environment, thereby extending the service life of the tarpaulin.

[0032] When the tarpaulin is subjected to external forces, the abrasion-resistant protective layer 1 first bears the external friction and tensile forces. Due to the presence of the polypropylene coating 8, it can effectively resist these external forces. Then, the external force is transmitted through the abrasion-resistant protective layer 1 to the mesh reinforcement layer 2. The intermediate buffer layer 7 in the mesh reinforcement layer 2 begins to play a buffering role, dispersing the stress. Next, the stress is transmitted to the woven base layer 3. The warp, weft, and tensile strips in the woven base layer 3 work together to further disperse and resist the tensile force, ensuring that the tarpaulin will not be easily damaged.

[0033] In one possible implementation, the warp polypropylene filament has good strength, abrasion resistance and corrosion resistance, the polypropylene coating 8 is a decorative polypropylene coating, and the weft polyester filament has high tensile strength, light weight and better softness than polyethylene flat yarn.

[0034] In the specific application of this utility model embodiment, polypropylene yarn has good strength, abrasion resistance, and corrosion resistance. In the structure of the tarpaulin, the polypropylene yarn in the warp direction bears the main tensile load. When the tarpaulin is subjected to external tension, such as under strong winds or when it is used to cover heavy objects, the polypropylene yarn can resist the risk of being torn due to its high strength. Its abrasion resistance means that even if the tarpaulin is repeatedly rubbed against other object surfaces during use (such as the tarpaulin rubbing against the surface of the goods during transportation or against the fixing device during installation and disassembly), the structure of the polypropylene yarn is not easily damaged. Its corrosion resistance ensures that the polypropylene yarn will not be corroded in different environments (such as humid environments or environments with certain chemical substances), thereby maintaining the structural integrity of the tarpaulin.

[0035] The polypropylene coating 8, as a finishing coating, covers the surface of the tarpaulin. On one hand, it protects the polypropylene fibers and weft polyester fibers inside the tarpaulin, preventing external environmental factors (such as ultraviolet rays, rain, and chemicals in dust) from directly contacting the internal fiber structure. On the other hand, the polypropylene coating itself has a certain degree of flexibility and adhesion; it can maintain its fit with the tarpaulin as it deforms under different usage conditions, preventing it from easily peeling off. When subjected to external impact or friction, the coating can buffer some of the energy, reducing damage to the internal fiber structure.

[0036] The weft polyester yarn has high tensile strength and is interwoven with the warp polypropylene yarn in the tarpaulin structure. When the tarpaulin is under tension, the weft polyester yarn and the warp polypropylene yarn share the tension, forming a stable fiber interwoven network. Its lightweight characteristic ensures that the overall weight of the tarpaulin is not excessive, facilitating transportation, installation, and disassembly. Moreover, its softness is better than that of polyethylene flat yarn, giving the tarpaulin better flexibility during use, allowing it to better conform to the shape of the object being covered, improving the tarpaulin's covering effect, and making it easier to fold and store.

[0037] In one possible implementation, the addition of polypropylene during the coating process increases the adhesion between the polyester filaments and the coating layer. The number of plain weave patterns 4 is equal to the number of polyester tensile strips 5, the number of plain weave patterns 4 is not less than three, and the shape of the adhesive distribution grid 6 is arc-shaped.

[0038] In a specific application of this invention, during the manufacturing process of tarpaulins, the addition of polypropylene can improve the adhesion between the polyester filaments and the coating layer. Polypropylene molecules interact with molecules on the surface of the polyester filaments and the molecules in the coating layer. Polypropylene molecules can fill the microscopic gaps between the polyester filaments and the coating layer, forming a "bridge"-like structure that tightly connects the two. For example, certain functional groups on the polypropylene molecular chain form chemical bonds or intermolecular forces (such as van der Waals forces) with chemical groups on the surface of the polyester filaments, and also have similar interactions with components in the coating layer, thereby enhancing the overall adhesion.

[0039] Plain weave is characterized by its structural stability. Each warp and weft yarn interweaves with the others. When the number of plain weave patterns (4) and the number of polyester tensile strips (5) are equal and not less than three, this structural design ensures that when the tarpaulin is under stress, the tension is evenly distributed across the various weave patterns and tensile strips. For example, when the tarpaulin is subjected to tensile force, the tension along the warp or weft direction is transmitted to each polyester tensile strip through the interlacing points of the plain weave. Because their numbers are equal and guaranteed (not less than three), it's like multiple support points sharing the load, preventing damage caused by excessive localized stress.

[0040] The adhesive distribution grid 6 is arc-shaped, which allows for a more even distribution of adhesive on the tarpaulin surface. Compared to other shapes (such as square grids where adhesive may accumulate at corners or be unevenly distributed), the arc shape has no sharp corners, allowing the adhesive to flow more smoothly and cover the tarpaulin surface during application. During the use of the tarpaulin, the evenly distributed adhesive better bonds different components (such as polyester filaments) together, enhancing the overall structural strength of the tarpaulin. Furthermore, the arc-shaped grid reduces stress concentration when the tarpaulin is subjected to external forces, as its smooth shape allows for more even force transmission and dispersion.

[0041] Previously, the base fabric of plastic woven fabric was made of polyethylene flat yarn woven through warp and weft. To improve the weft strength of plastic woven fabric, the weft yarn was changed from polyethylene flat yarn to polyester yarn. Polyester yarn has higher tensile strength, lighter weight, and better softness than polyethylene flat yarn. To increase the adhesion between the base fabric and the coating layer, a certain proportion of polypropylene is added during coating. Adding polypropylene can improve the adhesion between polyester yarn and coating layer, ultimately making the coating layer more stable.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A tarpaulin with high tensile strength, characterized in that, include: The wear-resistant protective layer (1) and the woven base layer (3) are provided. The lower end of the wear-resistant protective layer (1) is connected to a mesh reinforcement layer (2) fixed by adhesive bonding. The lower end of the mesh reinforcement layer (2) is connected to a woven base layer (3) fixed by adhesive bonding. The woven base layer (3) is woven from warp and weft threads. The warp threads are made of polyethylene flat yarn and the weft threads are made of polyester yarn. The lower end of the woven base layer (3) is connected to the mesh reinforcement layer (2). The lower end of the mesh reinforcement layer (2) is connected to the wear-resistant protective layer (1). The woven base layer (3) is provided with a plain weave pattern (4). Polyester yarn tensile strips (5) are connected in the plain weave pattern (4). The mesh reinforcement layer (2) is provided with an adhesive distribution grid (6). The adhesive distribution grid (6) is filled with an intermediate buffer layer (7). The wear-resistant protective layer (1) is provided with a polypropylene coating (8).

2. The high tensile strength tarpaulin according to claim 1, characterized in that, The warp polypropylene filaments have good strength, abrasion resistance, and corrosion resistance.

3. The high tensile strength tarpaulin according to claim 1, characterized in that, The polypropylene coating (8) is a decorative polypropylene coating.

4. The high tensile strength tarpaulin according to claim 1, characterized in that, The weft polyester filaments are strong, lightweight, and have better softness than polyethylene flat yarns.

5. The high tensile strength tarpaulin according to claim 1, characterized in that, The addition of polypropylene during the coating process improves the adhesion between the polyester filaments and the coating layer.

6. The high tensile strength tarpaulin according to claim 1, characterized in that, The number of plain weave patterns (4) is equal to the number of polyester tensile strips (5).

7. The high tensile strength tarpaulin according to claim 1, characterized in that, The number of plain weave patterns (4) is not less than three.

8. The high tensile strength tarpaulin according to claim 1, characterized in that, The adhesive distribution grid (6) is arc-shaped.

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