Manufacturing method of screen cloth for solar photovoltaic screen printing plate
By using a mixed weaving technique with different warp and weft yarn diameters and mesh counts in the solar photovoltaic mesh, the problem of insufficient printability and service life of traditional mesh has been solved, achieving higher printability and service life.
Patent Information
- Application Number
- CN202511354128.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2025-11-28
AI Technical Summary
Existing solar photovoltaic mesh fabrics have shortcomings in balancing printability and service life, and traditional weaving processes cannot simultaneously meet customer needs.
By employing a mixed weaving method with different warp and weft yarn diameters and mesh counts, and adjusting the weft yarn diameter and warp and weft yarn mesh counts, double-mesh mesh fabric is prepared, ensuring both printability and service life.
It improves printability and lifespan, reduces the rate of broken grids, increases lifespan by 30-50%, and has good printability.
Smart Images
Figure CN121023713A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of solar photovoltaic screen processing, in particular to a manufacturing method of a screen cloth for a solar photovoltaic screen. BACKGROUND
[0002] The photovoltaic industry involves technologies and processes for converting solar energy into electrical energy, mainly through the use of silicon-based photovoltaic cells. Solar silicon wafers capture sunlight and convert it into electric current, which is a key component in the conversion of solar power. Printing a silver paste pattern on the substrate of a solar silicon wafer is a method to increase the photoelectric conversion efficiency of a solar panel. Currently, a screen printing method is used to print the pattern, that is, a screen cloth woven by metal wires is used as a screen, and silver paste is used as dye to print the required pattern on the solar panel.
[0003] The screen cloth used for the manufacturing of a solar photovoltaic fine grid screen in the prior art is made of tungsten wire, and the warp and weft lines have the same number of ends, with 430 ends, 480 ends, 500 ends, and 520 ends being the mainstream. The warp and weft lines have fixed ends, and the existing weaving process with fixed warp and weft lines can only consider one of the on-site printability or the print life, or even both cannot be well ensured. Either the printability is poor, or the service life does not meet the requirements, or even both the printability and the service life cannot meet the customer's needs. In addition, the screen cloth used for the manufacturing of a solar photovoltaic fine grid screen in the prior art now has the same line diameter for the warp and weft lines, with a line diameter of 6-13 microns being the mainstream. In the existing weaving process with fixed warp and weft line diameters, under the same screen cloth end number, the screen cloth made of high-line warp wires has a coarse line diameter and a small opening, resulting in poor ink permeability of the screen, but the service life of the solar photovoltaic screen made of the screen cloth is higher than that of the screen made of fine wires. Similarly, under the same screen cloth end number, the screen cloth made of low-line warp wires has a fine line diameter and a large opening, resulting in good ink permeability of the screen, but the service life of the solar photovoltaic screen made of the screen cloth is lower than that of the screen made of high-line diameter wires. Therefore, the screen cloth made by the traditional method has poor flexibility, which greatly limits the use of downstream customers. SUMMARY
[0004] To solve the above problems, the present application provides a manufacturing method of a screen cloth for a solar photovoltaic screen, which uses a variety of warp and weft line combinations to weave the screen cloth, allowing downstream customers to more flexibly meet the needs of various performance and service life according to customer needs.
[0005] A method for manufacturing mesh fabric for solar photovoltaic screens, characterized by: using a mixture of warp and weft yarns with different diameters and mesh counts; and setting different weft yarn diameters and warp and weft yarn mesh counts according to customer and market demands. The specific steps are as follows: S1. Wind the tungsten wire used for weaving onto the raw material shaft according to the parameters of the reed, and the length of each group should be consistent. S2. Pass the tungsten wire used for weaving the net through the palm sheet and the reed. The palm sheet is divided into front and back sheets. Ensure that one of the adjacent wires passes through the front sheet and the other through the back sheet. S3. Evenly attach the warp threads that have passed through the palm fiber and reed to the tape, apply a certain tension, and start the weaving equipment; S4. The reciprocating motion of the scimitar belt drives the weft threads to be woven. Each time the scimitar belt moves back and forth, the angle of the front and rear palm pieces changes once, ensuring that the warp and weft threads are woven alternately up and down.
[0006] Its further features are: The tungsten wire is a common tungsten wire or a high-strength tungsten wire; The diameter of the tungsten wire is 2μm to 13μm; Tungsten wires of different diameters include warp tungsten wires and weft tungsten wires with different diameters; Tungsten wires of different diameters also include those with different diameters in the warp or weft of the same mesh. The warp mesh count is 400-1000 meshes, and the weft mesh count is 400-1000 meshes. When the warp and weft mesh counts are different, it becomes a double-mesh mesh.
[0007] By adopting this invention, the shortcomings of poor flexibility in mesh fabric woven by traditional methods are overcome, and the dilemma of not being able to balance various performance characteristics and service life in the photovoltaic screen industry is solved. Solar photovoltaic screens made of double-mesh mesh fabric have been verified by customers to have good printability, a 20% reduction in grid breakage rate, and an average service life of over 400,000 cycles, which is 30% higher than the average service life of screens with the same mesh count of warp and weft threads. Solar photovoltaic screens made of multi-diameter mesh fabric have been verified by customers to have good printability, a 15-20% reduction in grid breakage rate, and an average service life of over 20-25%. Attached Figure Description
[0008] Figure 1 A schematic diagram of the structure of a specific embodiment of the method of the present invention; Figure 2 This is a schematic diagram of the structure of a specific embodiment two of the method of the present invention; Figure 3 This is a schematic diagram of the structure of a specific embodiment three of the method of the present invention. Detailed Implementation
[0009] A manufacturing method of a screen cloth for a solar photovoltaic screen: it adopts different thread diameters and different meshes of warp and weft to mix weaving, sets different weft thread diameters, warp and weft thread counts according to customer demand and market demand, and the specific steps are as follows: S1, the tungsten wire used for weaving is wound on the raw material shaft according to the reed parameter index, and the length of each group needs to be consistent; S2, the tungsten wire used for weaving is passed through the brown sheet and the reed, the brown sheet is divided into front and back sheets, and it is ensured that one of the two adjacent wires is passed through the front sheet and the other is passed through the back sheet; S3, the warp wire passing through the brown sheet and the reed is evenly stuck on the adhesive tape, and a certain tension is given, and the weaving equipment is started; S4, the sword belt reciprocates to drive the weft to weave, the front and back brown sheets change angle once every time the sword belt reciprocates once, and it is ensured that the warp and weft are alternately woven.
[0010] Specific embodiment one, see Figure 1 , the warp is 500 meshes, the weft is 430 meshes, the warp wire is a common tungsten wire with a thread diameter of 12 microns, and the weft wire is a common tungsten wire with a thread diameter of 10 microns.
[0011] Specific embodiment two, see Figure 2 , the warp is 500 meshes, the weft is 610 meshes, the warp wire is a high-strength tungsten wire with a thread diameter of 9 microns, and the weft wire is a high-strength tungsten wire with a thread diameter of 5 microns.
[0012] Specific embodiment three, see Figure 3 , the warp is 800 meshes, the weft is 1000 meshes, the warp wire is a high-strength tungsten wire with a thread diameter of 2 microns, and the weft wire is a high-strength tungsten wire with a thread diameter of 5 microns.
[0013] The screen cloth is woven by using different thread diameters, and a double-mesh screen cloth is formed, and the photovoltaic printing screen fine grid pattern is parallel to the screen cloth wire, which ensures that the printed fine grid pattern falls into the inside of the screen cloth opening, the different thread diameters of the warp and weft ensure good printing ink permeability and sufficient tungsten wire strength to support the pattern, thereby ensuring the service life of the photovoltaic screen, and the corresponding screen cloth is obtained by weaving the warp and weft according to the preset thread diameter of the tungsten wire.
[0014] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0015] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A method for manufacturing a mesh fabric for solar photovoltaic screens, characterized in that: It uses a mixed weaving technique with different warp and weft yarn diameters and mesh counts. Different weft yarn diameters and warp and weft yarn mesh counts are set according to customer and market demands. The specific steps are as follows: S1. Wind the tungsten wire used for weaving onto the raw material shaft according to the parameters of the reed, and the length of each group should be consistent. S2. Pass the tungsten wire used for weaving the net through the palm sheet and the reed. The palm sheet is divided into front and back sheets. Ensure that one of the adjacent wires passes through the front sheet and the other through the back sheet. S3. Evenly attach the warp threads that have passed through the palm fiber and reed to the tape, apply a certain tension, and start the weaving equipment; S4. The reciprocating motion of the scimitar belt drives the weft threads to be woven. Each time the scimitar belt moves back and forth, the angle of the front and rear palm pieces changes once, ensuring that the warp and weft threads are woven alternately up and down.
2. The method for manufacturing a mesh fabric for a solar photovoltaic screen according to claim 1, characterized in that: The tungsten wire is either a regular tungsten wire or a high-strength tungsten wire.
3. The method for manufacturing a mesh fabric for solar photovoltaic screens according to claim 1, characterized in that: The diameter of the tungsten wire is 2μm to 13μm.
4. A method for manufacturing a mesh fabric for a solar photovoltaic screen according to claim 1, characterized in that: Tungsten wires of different diameters include warp tungsten wires and weft tungsten wires with different diameters.
5. A method for manufacturing a mesh fabric for a solar photovoltaic screen according to claim 1, characterized in that: Tungsten wires of different diameters also include those with different diameters in the warp or weft of the same mesh.
6. A method for manufacturing a mesh fabric for a solar photovoltaic screen according to claim 1, characterized in that: The warp mesh count is 400-1000 meshes, and the weft mesh count is 400-1000 meshes. When the warp and weft mesh counts are different, it becomes a double-mesh mesh.