CN220409968U - Knotless metal gauze and screen thereof - Google Patents
Knotless metal gauze and screen thereof Download PDFInfo
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- CN220409968U CN220409968U CN202322095680.7U CN202322095680U CN220409968U CN 220409968 U CN220409968 U CN 220409968U CN 202322095680 U CN202322095680 U CN 202322095680U CN 220409968 U CN220409968 U CN 220409968U
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- metal
- printing
- knotless
- printing area
- area
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 103
- 239000002184 metal Substances 0.000 title claims abstract description 103
- 238000007639 printing Methods 0.000 claims abstract description 81
- 239000000758 substrate Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 239000004332 silver Substances 0.000 abstract description 6
- 238000009941 weaving Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000004831 Hot glue Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
Abstract
The application discloses a knotless metal gauze, characterized by comprising: the printing device comprises a printing area and a non-printing area, wherein the printing area consists of a grid formed by metal wires, and the non-printing area consists of a grid formed by metal wires; at least the grid width of the printing area in the same direction is larger than the grid width of the non-printing area, and the printing area and the non-printing area are of an integrated structure; wherein the cross section of the metal wire is arranged according to a preset shape. The utility model provides a no knot metal gauze, including printing district and non-printing district, wherein printing district and non-printing district adopt integrated into one piece structure, constitute the metal wire of printing district and non-printing district net and do not have the condition of weaving to the cross-section of metal wire adopts different shape to set up, can improve the whereabouts controllability of silver ink more like this, with the conductive performance of this conductive fine grid of assurance printing.
Description
Technical Field
The application relates to the technical field of gauze, in particular to a knotless metal gauze and a screen plate thereof.
Background
The screen is an important tool for printing electrodes of the solar cell, slurry is poured onto the screen, a scraper is used for driving the slurry to move on the screen, the slurry is extruded onto the solar cell through meshes on the screen, and corresponding patterns are formed on the solar cell so as to form the electrodes of the solar cell.
The screen printing plate formed by the solar conductive electrode in the prior art generally comprises a steel wire mesh and a PI film, wherein the steel wire mesh and the PI film are connected through bonding glue, and the bonding glue is generally hot melt glue; in order to enable silver ink to slide onto a substrate to be printed, a thin grid pattern needs to be laser formed on the surface of the PI film by using laser, so that a steel wire mesh is communicated with a region corresponding to the thin grid on the PI film, and the silver ink can slide; the adopted steel wire mesh is generally a woven mesh, and because the steel wire mesh is the woven mesh, superposition exists at the intersection of warp and weft of the steel wire mesh, so that the fine grid area is uneven in the process of sliding silver ink, the printed conductive fine grid is uneven, and the conductive performance of the conductive fine grid is directly affected; moreover, as the steel wire mesh is a woven mesh, dislocation is easy to generate between warps and wefts in the using process, so that the appearance (such as uneven thickness) of the final conductive fine grid can be influenced, and the conductive performance of the conductive fine grid can be influenced.
Disclosure of Invention
Based on this, it is necessary to provide a knotless metal gauze and a screen to solve the above technical problems.
The technical scheme of the application is as follows:
a knotless metal gauze comprising: the printing device comprises a printing area and a non-printing area, wherein the printing area consists of a grid formed by metal wires, and the non-printing area consists of a grid formed by metal wires; at least the grid width of the printing area in the same direction is larger than the grid width of the non-printing area, and the printing area and the non-printing area are of an integrated structure; wherein the cross section of the metal wire is arranged according to a preset shape.
In one embodiment, the predetermined shape of the cross section of the metal wire is at least one set of opposite sides arranged in parallel.
In one embodiment, the preset shape of the cross section of the metal wire is one of rectangle, trapezoid, diamond and regular hexagon.
In one embodiment, the predetermined shape of the cross section of the metal wire is at least one set of opposite sides arranged in a non-parallel manner.
In one embodiment, at least one surface of the cross section of the metal wire is arc-shaped, wherein the arc-shaped is a convex structure or a concave structure.
In one embodiment, the grid formed by the metal wires of at least the printing area includes a first opening and a second opening, wherein a projection area of the first opening in a direction perpendicular to the surface of the metal gauze is smaller than or equal to a projection area of the second opening in a direction perpendicular to the surface of the metal gauze.
In one embodiment, the metal gauze comprises a plurality of printing areas, the adjacent printing areas are arranged at intervals through the non-printing areas, and the material to be printed slides from the printing areas to the substrate to be printed.
In one embodiment, the width of the printing area is 50 μm to 500 μm.
In one embodiment, the width of the metal wire is 6 μm to 15 μm, and the thickness of the metal wire is 3 μm to 30 μm.
The screen printing plate is characterized by comprising any one of the knotless metal screen yarns.
The beneficial effects of this application: the utility model provides a no knot metal gauze, including printing district and non-printing district, wherein printing district and non-printing district adopt integrated into one piece structure, constitute the metal wire of printing district and non-printing district net and do not have the condition of weaving to the cross-section of metal wire adopts different shape to set up, can improve the whereabouts controllability of silver ink more like this, with the conductive performance of this conductive fine grid of assurance printing.
Drawings
FIG. 1 is a schematic diagram of a screen plane structure of the present application;
FIG. 2 is a schematic view of a partial enlarged structure of a knotless metal gauze of the present application;
FIG. 3 is a schematic cross-sectional view of a knotless metal gauze in the M-N direction of the present application;
FIG. 4 is a schematic cross-sectional view of an alternative knotless metal gauze of the present application;
FIG. 5 is a schematic cross-sectional view of an alternative knotless metal gauze of the present application;
FIG. 6 is a schematic cross-sectional view of an alternative knotless metal gauze of the present application;
fig. 7 is a schematic cross-sectional view of an alternative knotless metal gauze of the present application.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described below. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
A knotless metal gauze comprising: the printing device comprises a printing area and a non-printing area, wherein the printing area consists of a grid formed by metal wires, and the non-printing area consists of a grid formed by metal wires; at least the grid width of the printing area in the same direction is larger than the grid width of the non-printing area, and the printing area and the non-printing area are of an integrated structure; wherein the cross section of the metal wire is arranged according to a preset shape. The printing area is an area where silver ink or conductive ink slides off in the using process, different specifications can be set according to different printed conductive lines, for example, the printed conductive lines are fine grids, the printing area is a fine grid printing area, and if the printed conductive lines are main grids, the printing area is a main grid printing area; the grid width of the printing area is normally larger than that of the non-printing area, and the printing area grid is not provided with intersected metal wires, so that the barrier of the metal wires to the conductive ink is reduced to the greatest extent; the grid arrangement of the non-printing area is more random, because the grid arrangement is not a working area, but the arrangement premise of the non-printing area is to ensure the strength of the metal gauze, so that the metal gauze cannot be used, and the condition of yarn breakage occurs.
In one embodiment, the predetermined shape of the cross section of the metal wire is at least one set of opposite sides arranged in parallel. Normally, one surface of the metal gauze faces to the scraper surface, the other surface faces to the substrate to be printed, and at least one pair of opposite sides of the cross section of the metal wire are arranged in parallel, or the two opposite sides are arranged in parallel. For example, in one embodiment, the preset shape of the cross section of the metal wire is one of rectangle, trapezoid, diamond and regular hexagon.
In one embodiment, the predetermined shape of the cross section of the metal wire is at least one set of opposite sides arranged in a non-parallel manner. The set of opposite sides of the metal wire section are arranged in a non-parallel manner, so that the sliding parameters of the conductive ink can be optimized mainly through the design of the structure, and a non-parallel arrangement mode can be arranged according to different design parameter requirements, for example, in one embodiment, at least one surface of the metal wire section is arc-shaped, wherein the arc-shaped is of a convex structure or a concave structure; of course, the cross sections of the metal wires are not arranged in parallel, the cross sections of the metal wires can also be trapezoid, the upper surface and the lower surface of the cross sections of the metal wires are arranged in parallel, and the two side surfaces are arranged in non-parallel, so that the sliding quantity of the conductive ink can be well controlled, and the morphology control of the printed conductive circuit is realized.
In one embodiment, the grid formed by the metal wires of at least the printing area includes a first opening and a second opening, wherein a projection area of the first opening in a direction perpendicular to the surface of the metal gauze is smaller than or equal to a projection area of the second opening in a direction perpendicular to the surface of the metal gauze. The grid formed by metal wires is in a horn shape in the thickness direction, and the horn shape can be a large opening towards the scraper surface or a large opening towards the side of the substrate to be printed and can be adjusted according to actual requirements.
In one embodiment, the metal gauze comprises a plurality of printing areas, the adjacent printing areas are arranged at intervals through the non-printing areas, and the material to be printed slides from the printing areas to the substrate to be printed. The surface of the metal gauze can be provided with different numbers of printing areas according to different requirements of the main fine grid, and the printing areas can be arranged in parallel or have included angles with delay lines.
In one embodiment, the width of the printing area is 50 μm to 500 μm. In one embodiment, the width of the metal wire is 6 μm to 15 μm, and the thickness of the metal wire is 3 μm to 30 μm.
A screen comprising any one of the knotless metal screen yarns described above; under normal conditions, the metal gauze is adhered to the PI film or the polymer film through hot melt adhesive, and then the PI film is fixed on the metal frame to form the screen.
Referring to fig. 1, a screen plate is shown in fig. 1, and the screen plate includes a metal screen 10, a hot melt adhesive 20, a PI film 30, and a metal screen frame 40, where the metal screen 10 is connected with the PI film through the hot melt adhesive 20, and the PI film is directly fixed on the metal screen frame 40 to form the screen plate. The metal gauze 10 includes a printing area a and a non-printing area B, and the conductive ink mainly slides from the printing area a to the surface of the substrate to be printed.
Referring to fig. 2, the printed area a and the non-printed area B are formed by grids formed by metal wires 101, and as can be seen from fig. 2, the width of the grids of the printed area a is larger than that of the non-printed area B, so that the conductive ink can be better ensured to fall. The printed area and the non-printed area are both formed by the metal wire 101 and belong to an integrally formed structure, namely the thickness at the grid intersection point is basically consistent with the thickness at other places of the metal wire, and no braiding exists; also, in fig. 2, it can be seen that there are no nodes where the metal lines intersect in the printed area a, so that the influence on the conductive ink drop due to the nodes can be reduced.
Referring to fig. 3 to 7, schematic diagrams of different cross-sectional structures in the M-N direction in fig. 2 are shown; the cross section of the metal line 101 in fig. 3 is rectangular, wherein the middle wider area a is a printing area; the top surface of the cross section of the metal wire 101 in fig. 4 is arc-shaped, wherein the arc-shaped is a convex arc-shaped, and the arc-shaped can be a concave arc-shaped as well; the cross section of the metal line 101 in fig. 5 is trapezoid, and the width of the trapezoid is smaller than that of the bottom surface; the cross-section of the wire 101 in fig. 6 is likewise trapezoidal, except that this trapezoid is exactly a mirror image of that in fig. 5; in fig. 7, two sides of the cross section of the metal wire 101 are arranged in a non-parallel manner, and the top surface of the metal wire 101 is arranged in a convex arc shape. The cross-sectional shapes of the wires are shown in fig. 3-7, which are only a limited list, and the cross-section of the wires may be designed in other shapes according to different requirements.
The knotless metal gauze structure is an integrated forming structure, the metal wire material in the metal gauze can be nickel metal or nickel alloy material, such as nickel cobalt alloy, nickel chromium alloy and the like, and of course, other metal materials can be used, so long as the use requirement of the metal gauze can be met, and the material of the metal wire can be selected optionally; the metal wires can be formed in an electroplating mode, and the printing area and the non-printing area can also be formed in a laser mode.
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other ways than those described above and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not limited to the specific embodiments disclosed above. In addition, the technical features of the above-described embodiments may be combined arbitrarily, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description of the present specification.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A knotless metal gauze comprising: the printing device comprises a printing area and a non-printing area, wherein the printing area consists of a grid formed by metal wires, and the non-printing area consists of a grid formed by metal wires; at least the grid width of the printing area in the same direction is larger than the grid width of the non-printing area, and the printing area and the non-printing area are of an integrated structure; wherein the cross section of the metal wire is arranged according to a preset shape.
2. A knotless metal gauze according to claim 1, characterized in that said predetermined shape of the cross section of the metal wire is such that at least one set of opposite sides are arranged in parallel.
3. The knotless metal gauze of claim 2, wherein the predetermined shape of the wire cross section is one of rectangular, trapezoidal, diamond, and regular hexagonal.
4. A knotless metal gauze according to claim 1, characterized in that said predetermined shape of the cross section of the metal wire is such that there is at least one set of opposite sides arranged non-parallel.
5. The knotless metal gauze of claim 4, wherein at least one side of the wire cross-section is arcuate, wherein the arcuate is a convex or concave configuration.
6. The knotless expanded metal of claim 1, wherein the mesh formed by the metal wires of at least the printed area comprises first openings and second openings, wherein the projected area of the first openings in a direction perpendicular to the surface of the expanded metal is less than or equal to the projected area of the second openings in a direction perpendicular to the surface of the expanded metal.
7. The knotless metal screen according to claim 1, wherein the metal screen comprises a plurality of printed areas, adjacent printed areas being spaced apart by the non-printed areas, the material to be printed sliding from the printed areas to the substrate to be printed.
8. A knotless metal gauze according to claim 1, characterized in that the width of the printed area is 50-500 μm.
9. A knotless metal gauze according to any one of claims 1 to 8, wherein the width of said wires is between 6 μm and 15 μm and the thickness of said wires is between 3 μm and 30 μm.
10. Screen printing plate, characterized in that it comprises a knotless metal screen according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095680.7U CN220409968U (en) | 2023-08-04 | 2023-08-04 | Knotless metal gauze and screen thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095680.7U CN220409968U (en) | 2023-08-04 | 2023-08-04 | Knotless metal gauze and screen thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220409968U true CN220409968U (en) | 2024-01-30 |
Family
ID=89657650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322095680.7U Active CN220409968U (en) | 2023-08-04 | 2023-08-04 | Knotless metal gauze and screen thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220409968U (en) |
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2023
- 2023-08-04 CN CN202322095680.7U patent/CN220409968U/en active Active
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