Printing screen cloth and printing screen plate

Abstract

The embodiment of the utility model provides printing screen cloth and a printing screen plate. The printing screen cloth comprises polyester gauze, a bonding layer and an erasable film layer; the polyester gauze is provided with meshes; the bonding layer is arranged on one side of the polyester gauze; the removable film layer is arranged on the side, away from the polyester gauze, of the bonding layer, and the removable film layer can be partially removed to form holes. The printing screen cloth provided by the embodiment of the utility model is relatively low in cost, and the required preset pattern can be quickly formed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screen printing, in particular to a printing screen cloth and a printing screen. BACKGROUND

[0002] In the technical field of screen printing, a printing screen is usually used in cooperation with ink to print on a target object to form a text or a pattern on the target object. In the related art, the printing screen cloth in the printing screen usually includes a metal screen and a photosensitive adhesive layer coated on the metal screen. Generally, the photosensitive adhesive layer is processed by laser, specifically, the part of the photosensitive adhesive layer irradiated by laser sublimates to form a hole, and the part not irradiated by laser remains. However, the cost of the metal screen in the related art is relatively high. SUMMARY

[0003] In a first aspect, an embodiment of the present application provides a printing screen cloth, which comprises:

[0004] a polyester screen gauze having a mesh hole;

[0005] a bonding layer arranged on one side of the polyester screen gauze; and

[0006] an erasable film layer arranged on the side of the bonding layer away from the polyester screen gauze, the erasable film layer being capable of partially eliminating to form a hole.

[0007] In a second aspect, an embodiment of the present application provides a printing screen, which comprises:

[0008] a screen frame having a receiving hole; and

[0009] the printing screen cloth as described in the first aspect is arranged on the screen frame, and the printing screen cloth is arranged corresponding to the receiving hole

[0010] In summary, the printing screen cloth provided by the embodiment of the present application includes a polyester screen gauze without using a metal screen gauze, so that the cost of the printing screen cloth is relatively low. In addition, the polyester screen gauze is relatively soft and can be better attached to the surface of the target object. Therefore, when the printing screen formed by the printing screen cloth forms a predetermined pattern on the target object, the quality of the pattern printed on the target object is relatively high. Further, the printing screen cloth provided by the embodiment of the present application includes an erasable film layer, which can partially eliminate to form a hole, so that the printing screen cloth provided by the embodiment of the present application can form the required predetermined pattern at a relatively low temperature and faster. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0012] Figure 1 A schematic view of a printed mesh cloth according to an embodiment of the present application;

[0013] Figure 2 A schematic view of a printed mesh cloth according to an embodiment of the present application; Figure 1 A schematic view of a cross-sectional structure of the printed mesh cloth along the line I-I shown in the embodiment of the present application;

[0014] Figure 3 A schematic view of a polyester mesh shown in the printed mesh cloth according to an embodiment of the present application; Figure 1 A schematic view of a polyester mesh shown in the printed mesh cloth according to an embodiment of the present application;

[0015] Figure 4 A schematic view of the thickness of the printed mesh cloth shown in the embodiment of the present application; Figure 2 A schematic view of the thickness of the printed mesh cloth shown in the embodiment of the present application;

[0016] Figure 5 A schematic view of the thickness of the film layer in the printed mesh cloth shown in the embodiment of the present application; Figure 2 A schematic view of the thickness of the film layer in the printed mesh cloth shown in the embodiment of the present application;

[0017] Figure 6 A schematic view of the thickness of the adhesive layer in the printed mesh cloth shown in the embodiment of the present application; Figure 2 A schematic view of the thickness of the adhesive layer in the printed mesh cloth shown in the embodiment of the present application;

[0018] Figure 7 A schematic view of a printed mesh cloth according to another embodiment of the present application; Figure 1 A schematic view of a cross-sectional structure of the printed mesh cloth along the line I-I shown in the embodiment of the present application;

[0019] Figure 8 A schematic view of the thickness of the scratch-resistant layer shown in the embodiment of the present application; Figure 7 A schematic view of the thickness of the scratch-resistant layer shown in the embodiment of the present application;

[0020] Figure 9 A schematic view of a printed mesh cloth according to another embodiment of the present application;

[0021] Figure 10 A schematic view of a printed mesh cloth according to an embodiment of the present application; Figure 9 A schematic view of a cross-sectional structure of the printed mesh cloth along the line II-II shown in the embodiment of the present application;

[0022] Figure 11 A schematic view of a cross-sectional structure of the printed mesh cloth along the line II-II shown in the embodiment of the present application; Figure 9 A schematic view of a cross-sectional structure of the printed mesh cloth along the line II-II shown in the embodiment of the present application;

[0023] Figure 12 A schematic view of a cross-sectional structure of the printed mesh cloth along the line II-II shown in the embodiment of the present application; Figure 9A line width diagram of the edge wrapping structure of the printing screen cloth shown in FIG. 1;

[0024] Figure 13 A flow diagram of the preparation method of the printing screen provided in an embodiment of the present application;

[0025] Figure 14 For Figure 13 A structure diagram corresponding to each step in the preparation method of the printing screen cloth in FIG. 1;

[0026] Figure 15 A structure diagram of the printing screen provided in an embodiment of the present application;

[0027] Figure 16 For Figure 15 A cross-sectional structure diagram of the printing screen along III-III provided in FIG. 1;

[0028] Figure 17 A flow diagram of the preparation method of the printing screen provided in an embodiment of the present application.

[0029] Explanation of main element reference numerals:

[0030] Printing screen 1, printing screen cloth 10, screen frame 20;

[0031] Polyester screen gauze 110, screen hole 110a, bonding layer 120, film-eliminable layer 130, scratch-resistant layer 140, edge wrapping structure 150;

[0032] First surface 20a, second surface 20b, accommodating hole 20c. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the embodiments described in the present application are only some of the embodiments, not all the embodiments. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0034] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0035] The terms "first", "second", and the like in the description and in the claims of the present application and above-described drawings are intended to distinguish different objects, not to describe a particular sequential order. Moreover, the terms "comprises", "comprising", and the like are intended to encompass non-exclusive inclusions. For example, a component or device that comprises one or more parts does not limit the one or more parts to those listed, but can optionally include additional parts not listed, or one or more parts inherent to the example product.

[0036] An embodiment of the present application provides a printing screen cloth 10. Next, the printing screen cloth 10 provided by the embodiment of the present application is described in detail. Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 the schematic diagram of the printing screen cloth provided by the embodiment of the present application; Figure 2 the cross-sectional structure schematic diagram of the printing screen cloth shown in Figure 1 provided by the embodiment along the line I-I; Figure 3 the top view of the polyester screen cloth in the printing screen cloth shown in Figure 1 . The printing screen cloth 10 includes a polyester screen cloth 110, a bonding layer 120, and a removable film layer 130. The polyester screen cloth 110 has screen holes 110a. The bonding layer 120 is arranged on one side of the polyester screen cloth 110. The removable film layer 130 is arranged on the side of the bonding layer 120 away from the polyester screen cloth 110, and the removable film layer 130 can partially remove to form holes.

[0037] The cost of the polyester screen cloth 110 is relatively low.

[0038] The polyester screen cloth 110 has good temperature resistance. For example, the melting point temperature of the polyester screen cloth 110 can be 220-270°C. Therefore, the printing screen cloth 10 has a longer service life. The specific type of the polyester screen cloth 110 will be described in detail later.

[0039] The polyester screen cloth 110 has screen holes 110a, so the polyester screen cloth 110 can permeate ink. The mesh count (also known as screen mesh count) of the polyester screen cloth 110 can be determined according to the resolution required by the preset pattern to be printed on the target object. In the embodiment, the polyester screen cloth 110 includes a plurality of screen holes 110a arranged in an array.

[0040] Therefore, the polyester screen cloth 110 is relatively soft and can be more easily attached to the surface of the target object (also known as the object to be processed). Therefore, when the printing screen 1 formed by using the printing screen cloth 10 forms a preset pattern on the target object, the quality of the pattern printed on the target object is higher.

[0041] In an embodiment, the polyester screen 110 has a low light absorption. Thus, when the printing screen 10 is processed by laser, the polyester screen 110 has the mesh holes 110a, and thus, when the laser irradiates the polyester screen 110, the laser can pass through the mesh holes 110a, and the polyester screen 110 is not easily burned. In addition, the polyester screen 110 has a low light absorption, and thus, the laser has a high energy on the eliminable film layer 130 of the printing screen 10, and thus, the energy utilization rate of the laser on the eliminable film layer 130 is improved. In an embodiment, the polyester screen 110 has a light color, such as white or beige. The polyester screen 110 has a light color, and thus, the absorption of the laser by the polyester screen 110 is further reduced.

[0042] The adhesive layer 120 is arranged on one side of the polyester screen 110, and specifically, the adhesive layer 120 is arranged on the surface of the polyester screen 110. The adhesive layer 120 has an adhesive function, and is used to bond the eliminable film layer 130 to the polyester screen 110. Specifically, in an embodiment, the polyester screen 110 and the eliminable film layer 130 are bonded together by the adhesive layer 120 by using a bonding process.

[0043] The adhesive layer 120 can be, but is not limited to, an adhesive layer. Since the printing screen 10 is used for printing, the adhesive layer 120 needs to have a characteristic that it is not easily detached under printing of organic ink, such as water-based ink, heat-curable ink, water-based acrylic, UV-curable ink, and the like.

[0044] In the present embodiment, the eliminable film layer 130 is arranged on the surface of the adhesive layer 120 away from the polyester screen 110. The eliminable film layer 130 can be partially eliminated to form holes. For example, the eliminable film layer 130 can be, but is not limited to, a laser thermal shrinkable eliminable film, or a laser thermal gasification eliminable film, or a laser sublimation eliminable film, and the like. For example, when the eliminable film layer 130 is a laser thermal shrinkable eliminable film, the position of the eliminable film layer 130 irradiated by the laser has a thermal shrinkage reaction, and thus, a hole is formed. Correspondingly, the position of the eliminable film layer 130 not irradiated by the laser is retained. Thus, when the printing screen 10 is used to make the printing screen plate 1, the laser can be used to process the eliminable film layer 130 according to the pre-set pattern formed by the printing screen plate 1, to form a plurality of holes in the corresponding position of the eliminable film layer 130, and the plurality of holes form the pre-set pattern. When the printing screen plate 1 made by the printing screen 10 and the ink are used to print the target object, the ink can pass through the holes, but cannot pass through the position of the eliminable film layer 130 retained. Thus, the pre-set pattern on the printing screen plate 1 can be formed on the target object. Thus, the pre-set pattern can be printed on the target object.

[0045] Generally, the temperature range in which the heat-shrinkable film layer 130 can be heat-shrunk is less than the temperature range in which the polyester screen cloth 110 can withstand. Thus, when the heat-shrinkable film layer 130 is processed by electromagnetic wave energy, the polyester screen cloth 110 is less likely to be deformed.

[0046] To facilitate the description of the benefits of the present application, a printed screen cloth in the related art is introduced. In the related art, the printed screen cloth includes a metal screen cloth and a heat-shrinkable material arranged in the mesh of the metal screen cloth. When the heat-shrinkable material is irradiated by a laser, the heat-shrinkable material sublimates to form a hole.

[0047] The printed screen cloth 10 provided by the embodiments of the present application can form a hole by heat-shrinking the heat-shrinkable film layer 130 under the action of electromagnetic wave energy. Generally, the temperature required for the heat-shrinkable film layer 130 to heat-shrink is lower than the temperature at which the heat-shrinkable material sublimates when irradiated. Thus, the printed screen cloth 10 provided by the embodiments of the present application can form a predetermined pattern more quickly at a lower temperature.

[0048] For example, in the case of processing the same predetermined pattern on the printed screen cloth 10 provided by the embodiments of the present application and the printed screen cloth provided by the related art, and the size of the predetermined pattern is consistent. In the related art, the heat-shrinkable material sublimates to form a hole when irradiated by a laser, and then the predetermined pattern is formed. The time required for this process is 1.5 hours. In the printed screen cloth 10 provided by the embodiments of the present application, the heat-shrinkable material heat-shrinks to form a hole, and then the predetermined pattern is formed. The time required for this process is 0.5 hours. Thus, it can be seen that the printed screen cloth 10 provided by the embodiments of the present application includes a heat-shrinkable film layer 130, and the time required for processing the heat-shrinkable film layer 130 into a predetermined pattern to form a printed screen 1 is shorter.

[0049] In addition, when the heat-shrinkable material in the printed screen cloth in the related art sublimates, a strong odor is generated. When the heat-shrinkable film layer 130 in the printed screen cloth 10 provided by the embodiments of the present application heat-shrinks, there is no sublimation, and no strong odor is generated, or even no odor is generated.

[0050] In an embodiment, the heat-shrinkable film layer 130 has a high light absorption, thereby having a high absorption rate for laser. For example, the color of the heat-shrinkable film layer 130 can be, but is not limited to, black, or black-brown, or black-gray, etc. When the color of the heat-shrinkable film layer 130 is black, the heat-shrinkable film layer 130 can also be a heat-shrinkable black film.

[0051] In summary, the printing mesh 10 provided in the embodiment of the present application includes a polyester mesh 110, and no metal mesh is required. Therefore, the cost of the printing mesh 10 is low. In addition, the polyester mesh is relatively soft and can be better adhered to the surface of the target object. Therefore, when the printing screen 1 formed by the printing mesh 10 is used to form a preset pattern on the target object, the quality of the pattern printed on the target object is high. Furthermore, the printing mesh 10 provided in the embodiment of the present application includes an erasable film layer 130, and the erasable film layer 130 can be partially eliminated to form holes. For example, when the erasable film layer 130 is a laser heat shrink film, the erasable film layer 130 shrinks under the action of the energy of the electromagnetic wave to form holes. Therefore, the printing mesh 10 provided in the embodiment of the present application can form the required preset pattern faster at a lower temperature.

[0052] For example, in one embodiment, the polyester mesh 110 is one of polyester mesh, nylon mesh, polyethylene mesh, and polypropylene mesh.

[0053] Compared to metal mesh, polyester, nylon, polyethylene, and polypropylene meshes are relatively inexpensive. Furthermore, polyester, nylon, polyethylene, and polypropylene meshes are relatively flexible and adhere better to the surface of an object. Therefore, when a predetermined pattern is formed on an object using the printing screen 1 formed from the printing mesh 10, the resulting pattern is of high quality.

[0054] In one embodiment, the polyester mesh 110 is a polyester mesh. The polyester mesh has solvent resistance, high temperature resistance, water resistance and chemical resistance, stable physical properties and low stretchability, and is suitable for various types of printing, especially printing with high precision requirements.

[0055] See also Figure 4 , Figure 4 In one embodiment Figure 2 Schematic diagram of the thickness of the printed mesh shown in FIG. In this embodiment, the thickness d1 of the polyester mesh 110 satisfies: 70 μm ≤ d1 ≤ 110 μm.

[0056] For example, the thickness d1 of the polyester screen cloth 110 can be, but is not limited to, 70 μm, or 75 μm, or 80 μm, or 85 μm, or 90 μm, or 95 μm, or 100 μm, or 105 μm, or 110 μm. The thickness d1 of the polyester screen cloth 110 can be related to the mesh number of the polyester screen cloth 110, the smaller the mesh number, the greater the thickness, and the greater the mesh number, the smaller the thickness. In an embodiment, the thickness of the polyester screen cloth 110 with a mesh number of 200 is 82 μm ± 10 μm, in other words, the thickness of the polyester screen cloth 110 with a mesh number of 200 is 72 μm to 92 μm. In an embodiment, the thickness of the polyester screen cloth 110 with a mesh number of 100 can be 94 μm ± 10 μm, and the thickness of the polyester screen cloth 110 with a mesh number of 100 can be 84 μm to 104 μm.

[0057] The thickness of the metal screen cloth in the printing screen cloth in the related art is generally about 300 μm. For example, the thickness of the metal screen cloth in the printing screen cloth in the related art is 300 μm, or 200 μm. The thickness d1 of the polyester screen cloth 110 provided in the present embodiment satisfies 70 μm ≤ d1 ≤ 110 μm, and thus the thickness of the polyester screen cloth 110 provided in the present embodiment is small. Generally, the depth of the mesh hole 110a of the polyester screen cloth 110 is equal to the thickness of the polyester screen cloth 110. The thickness of the polyester screen cloth 110 provided in the present embodiment is small, and thus the depth of the mesh hole 110a of the polyester screen cloth 110 in the printing screen cloth 10 provided in the present embodiment is small. When the radial dimension of the mesh hole 110a is constant, the depth of the mesh hole 110a in the printing screen cloth 10 is small, and thus the ink remaining in the mesh hole 110a is relatively small when the printing screen 1 made of the printing screen cloth 10 is used for printing, and thus the ink leakage is not easy to occur, and the phenomenon of ink leakage is reduced, and thus the quality of the pattern printed on the target object is high when the printing screen 1 made of the printing screen cloth 10 is used for printing to form a predetermined pattern on the target object. In addition, the thickness d1 of the polyester screen cloth 110 provided in the present embodiment satisfies 70 μm ≤ d1 ≤ 110 μm, and thus the ink remaining in the mesh hole 110a of the polyester screen cloth 110 is not much, and the waste of ink is reduced.

[0058] Please refer to Figure 4In an embodiment, the diameter D of the polyester screen cloth 110 satisfies: 40 pm≤D≤60 pm. For example, the diameter D can be, but is not limited to, 40 pm, or 43 pm, or 45 pm, or 48 pm, or 50 pm, or 52 pm, or 55 pm, or 58 pm, or 60 pm. The diameter D of the polyester screen cloth 110 can be associated with the mesh number of the screen cloth, for example, the larger the mesh number, the smaller the diameter D, and the smaller the mesh number, the larger the diameter D. For example, when the mesh number is 200, the diameter D can be 48 pm, and when the mesh number is 100, the diameter D can be 55 pm. Generally, the diameter of the metal screen cloth in the related art is about 300 pm. Therefore, the diameter D of the polyester screen cloth 110 provided in the embodiment satisfies: 40 pm≤D≤60 pm, which can make the resolution of the predetermined pattern formed by the printing screen cloth 10 including the polyester screen cloth 110 higher.

[0059] In an embodiment, the mesh number of the polyester screen cloth 110 can be selected according to the printing requirement (also referred to as the mesh number of the screen cloth). For example, the mesh number of the polyester screen cloth 110 can be determined according to the application scenario of the printing screen cloth 10. The application scenario of the printing screen cloth 10 can include a household scenario and an industrial scenario. For example, the printing screen cloth 10 can be used for self-manual production (Do It Yourself, DIY) in the household scenario, or the printing screen cloth 10 can be used in the electronic circuit industry in the industrial scenario.

[0060] Generally, the larger the mesh number of the polyester screen cloth 110, the smaller the radial size of the screen hole 110a of the polyester screen cloth 110, and the higher the resolution when the printing screen 1 made of the printing screen cloth 10 is used to print a predetermined pattern on a target object.

[0061] In an embodiment, the mesh number (Mesh Number) mn of the polyester screen cloth 110 satisfies: 70 mesh≤Mn≤350 mesh.

[0062] For example, the mesh number of the polyester screen cloth 110 can be, but is not limited to, 70 mesh, or 80 mesh, or 90 mesh, or 100 mesh, or 110 mesh, or 120 mesh, or 130 mesh, or 140 mesh, or 150 mesh, or 160 mesh, or 170 mesh, or 180 mesh, or 190 mesh, or 200 mesh, or 210 mesh, or 220 mesh, or 230 mesh, or 240 mesh, or 250 mesh, or 260 mesh, or 270 mesh, or 280 mesh, or 290 mesh, or 300 mesh, or 310 mesh, or 320 mesh, or 330 mesh, or 340 mesh, or 350 mesh.

[0063] The mesh number mn of the polyester screen cloth 110 in the printing screen cloth 10 provided in the embodiment satisfies: 70 mesh≤Mn≤350 mesh, which can make the resolution of the predetermined pattern formed by the printing screen 1 made of the printing screen cloth 10 on a target object higher

[0064] It should be noted that, compared with the metal mesh, the mesh number Mn of the printing mesh 10 and the polyester mesh 110 provided in the embodiments of the present application satisfies: 70 meshes ≤ Mn ≤ 350 meshes, and also has relatively low cost.

[0065] Further, the eliminable film layer 130 includes a heat-shrinkable polyethylene terephthalate (PET) film layer or a heat-shrinkable plastic film.

[0066] The eliminable film layer 130 includes a PET film layer or a heat-shrinkable plastic film, so that the eliminable film layer 130 can be heat-shrunk to form holes at a relatively low temperature.

[0067] In an embodiment, the absorption rate Abs1 of the eliminable film layer 130 to the laser satisfies: 90% ≤ Abs1 ≤ 100%.

[0068] For example, the absorption rate Abs1 of the eliminable film layer 130 to the laser can be, but is not limited to, 90%, or 91%, or 92%, or 93%, or 94%, or 95%, or 96%, or 97%, or 98%, or 99%, or 100%. For example, the eliminable film layer 130 can be, but is not limited to, black glue and the like. The laser can be blue light with a wavelength of 455 nm.

[0069] Compared with the eliminable film layer 130 with a smaller absorption rate to the laser, in the embodiments of the present application, the absorption rate Abs1 of the eliminable film layer 130 to the laser satisfies: 90% ≤ Abs1 ≤ 100%, so that the eliminable film layer 130 can be easily engraved by the laser.

[0070] It should be noted that the absorption rate Abs1 of the eliminable film layer 130 to the laser satisfies: 90% ≤ Abs1 ≤ 100%, which is the property of the corresponding material of the eliminable film layer in the prior art. The present application does not improve the material of the eliminable film layer 130, but selects the eliminable film layer that satisfies the absorption rate.

[0071] Please refer to Figure 5 , Figure 5 is a schematic view of the thickness of the eliminable film layer in the printing mesh shown in an embodiment. Figure 2 In the embodiment, the thickness d2 of the eliminable film layer 130 satisfies: 1 μm ≤ d2 ≤ 10 μm.

[0072] The thickness d2 of the eliminable film layer 130 can be, but is not limited to, 1 μm, or 2 μm, or 3 μm, or 4 μm, or 5 μm, or 6 μm, or 7 μm, or 8 μm, or 9 μm, or 10 μm.

[0073] The thickness d2 of the erasable film layer 130 satisfies: 1μm≤d2≤10μm. The thickness of the erasable film layer 130 is relatively thin. When the erasable film layer 130 is processed by the energy of electromagnetic waves, the erasable film layer 130 can undergo a heat shrinkage reaction relatively quickly to form holes, thereby shortening the time required to make the printing screen 1 using the printing mesh 10.

[0074] Furthermore, in one embodiment, the thickness d2 of the film layer 130 can be eliminated to satisfy the following condition: 4 μm≤d2≤6.0 μm.

[0075] For example, the thickness d2 of the removable film layer 130 may be, but is not limited to, 4 μm, 4.5 μm, 5.0 μm, 5.5 μm, or 6.0 μm.

[0076] The thickness d2 of the erasable film layer 130 satisfies: 4μm≤d2≤6.0μm. The thickness of the erasable film layer 130 is relatively thin. When the erasable film layer 130 is processed by the energy of electromagnetic waves, the erasable film layer 130 can undergo a heat shrinkage reaction relatively quickly to form holes, thereby shortening the time required to make the printing screen 1 using the printing mesh 10.

[0077] In one embodiment, the absorption rate Abs2 of the bonding layer 120 to the laser light satisfies: 90%≤Abs2≤100%. The laser light may be of a blue wavelength, such as 455 nm.

[0078] For example, the laser absorption rate Abs2 of the bonding layer 120 can be, but is not limited to, 90%, or 91%, or 92%, or 93%, or 94%, or 95%, or 96%, or 97%, or 98%, or 99%, or 100%.

[0079] Compared with the bonding layer 120 having a lower laser absorption rate, in the implementation of the present application, the bonding layer 120 has a laser absorption rate Abs2 that satisfies: 90%≤Abs2≤100%, which can reduce the laser power required by the bonding layer 120.

[0080] It should be noted that the laser absorption rate Abs2 of the adhesive layer 120 satisfies the following condition: 90% ≤ Abs2 ≤ 100%, which is a characteristic of adhesive layers in the prior art. This application does not modify the material of the adhesive layer 120, and thus meets the requirements of the protected object of this utility model. The adhesive layer 120 may be made of black plastic.

[0081] See also Figure 6 , Figure 6 An implementation method Figure 2 Schematic diagram of the thickness of the adhesive layer in the printing mesh shown in FIG. The thickness d3 of the adhesive layer 120 satisfies: 1 μm≤d3≤30 μm.

[0082] For example, the thickness d3 of the adhesive layer 120 can be, but is not limited to, 1 μm, or 2 μm, or 3 μm, or 4 μm, or 5 μm, or 6 μm, or 7 μm, or 8 μm, or 9 μm, or 10 μm, or 15 μm, or 20 μm, or 25 μm, or 30 μm.

[0083] When the thickness of the adhesive layer 120 is too large, the adhesive of the adhesive layer 120 is prone to penetrate into the mesh hole 110a of the polyester screen mesh 110, and thus the portion of the preset pattern corresponding to the mesh hole 110a with the adhesive is lack of ink when printing the preset pattern by using the printing screen 10, resulting in poor printing. When the thickness of the adhesive layer 120 is small, the adhesive layer 120 cannot tightly attach the erasable film layer 130 to the surface of the polyester screen mesh 110, so that the adhesive layer 120 and the erasable film layer 130 are prone to fall off.

[0084] The thickness d3 of the adhesive layer 120 provided by the embodiment of the present application satisfies 1 μm≤d2≤30 μm, on the one hand, the adhesive of the adhesive layer 120 is not prone to penetrate into the mesh hole 110a of the polyester screen mesh 110, so as to ensure that the printing quality of the printing screen 1 prepared by using the printing screen 10 is good; on the other hand, the erasable film layer 130 is tightly attached to the surface of the polyester screen mesh 110, so that the adhesive layer 120 and the erasable film layer 130 are not prone to fall off from the polyester screen mesh 110.

[0085] Further, in an embodiment, when the printing screen 10 is prepared, the adhesive layer 120 can be adhered to the surface of the erasable film layer 130 to form an integral whole, and then the adhesive layer 120 in the integral whole is adhered to the surface of the polyester screen mesh 110. In this way, the adhesive layer 120 is arranged on the surface of the polyester screen mesh 110 and is not prone to enter the mesh hole 110a of the polyester screen mesh 110.

[0086] Further, in an embodiment, the thickness d3 of the adhesive layer 120 satisfies 1 μm≤d2≤12 μm.

[0087] For example, the thickness d3 of the adhesive layer 120 can be, but is not limited to, 1 μm, or 2 μm, or 3 μm, or 4 μm, or 5 μm, or 6 μm, or 7 μm, or 8 μm, or 9 μm, or 10 μm, or 11 μm, or 12 μm.

[0088] In this embodiment, the thickness d3 of the adhesive layer 120 in the printing mesh 10 satisfies: 1μm≤d2≤12μm, which can further prevent the adhesive of the adhesive layer 120 from easily penetrating into the mesh 110a of the polyester mesh 110, thereby ensuring that the printing quality of the printing screen 1 made using the printing mesh 10 is better; on the other hand, it can further enable the removable film layer 130 to be more firmly attached to the surface of the polyester mesh 110, so that the adhesive layer 120 and the removable film layer 130 are not easily detached from the polyester mesh 110.

[0089] In one embodiment, the adhesive layer 120 is a transparent adhesive, and the thickness d3 of the adhesive layer satisfies: 1 μm≤d3≤5 μm.

[0090] For example, the thickness d3 of the adhesive layer 120 may be, but is not limited to, 1 μm, 2 μm, 3 μm, 4 μm, or 5 μm. Using transparent adhesive is less expensive than the black adhesive.

[0091] In one embodiment, the adhesive layer 120 is a low-temperature curing thermosetting glue or a pressure-sensitive adhesive, such as polyurethane glue, acrylic resin glue, epoxy resin glue, etc. In this way, when bonding the polyester mesh 110 and the removable film layer 130, the adhesive layer 120 is not easily affected by high temperature shrinkage, thereby avoiding the impact of high temperature on the adhesive layer 120.

[0092] See also Figure 7 , Figure 7 Another embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the printing mesh along line II shown in FIG. In this embodiment, the printing mesh 10 includes a polyester mesh 110, an adhesive layer 120, and a removable film layer 130. The polyester mesh 110 has mesh holes 110a. The adhesive layer 120 is arranged on one side of the polyester mesh 110. The removable film layer 130 is arranged on the side of the adhesive layer 120 facing away from the polyester mesh 110, and the removable film layer 130 can be partially removable to form holes. For example, the removable film layer 130 can shrink under the energy of electromagnetic waves such as lasers to form holes. Please refer to the previous description for the polyester mesh 110, the adhesive layer 120, and the removable film layer 130, which will not be repeated here.

[0093] In addition, the printing mesh 10 further includes an anti-scratch layer 140 . The anti-scratch layer 140 is disposed on a side of the removable film layer 130 that faces away from the adhesive layer 120 .

[0094] In an embodiment, the anti-scratch layer 140 is disposed on the surface of the removable film layer 130 facing away from the adhesive layer 120. The anti-scratch layer 140 is used to protect the removable film layer 130, thereby reducing damage to the printing screen 1 made using the printing mesh 10 during printing, thereby extending the service life of the printing mesh 10 and the printing screen 1 made using the printing mesh 10.

[0095] In an embodiment, the anti-scratching layer 140 is an anti-fingerprint coating. In other words, the anti-scratching layer 140 is not only scratch-resistant, but also has a hydrophobic function, so as to reduce or even prevent ink from adhering to the anti-scratching layer 140 when the printing screen 1 prepared by using the printing screen cloth 10 is used for printing, thereby achieving the technical effect of saving ink. It can be understood that in other embodiments, the anti-scratching layer 140 can also not have a hydrophobic function.

[0096] In an embodiment, the anti-scratching layer 140 is a silicon-based scratch-resistant and hydrophobic coating. For example, when the printing screen cloth 10 is prepared, a silicon-based scratch-resistant and hydrophobic coating is applied on the surface of the eliminable film layer 130 away from the adhesive layer 120, so as to form a silicon-based scratch-resistant and hydrophobic coating.

[0097] In an embodiment, the anti-scratching layer 140 only has the anti-scratching performance, but does not have the hydrophobic performance. Specifically, the anti-scratching layer 140 with corresponding performance can be selected according to the material properties of the adhesive layer 120.

[0098] Compared with the printing screen cloth 10 without the anti-scratching layer 140, the printing screen cloth 10 provided by the embodiment of the application includes the anti-scratching layer 140, so as to improve the service life of the printing screen cloth 10.

[0099] In an embodiment, when the printing screen 1 prepared by using the printing screen cloth 10 is used for printing, if printing is performed from the surface of the anti-scratching layer 140 away from the adhesive layer 120, the service life of the printing screen 1 prepared by using the printing screen cloth 10 can reach hundreds of times, for example, 500 times, or 600 times, or 700 times, or 800 times. Among them, the service life of the polyester screen gauze 110 and the eliminable film layer 130 can be different. For example, when the anti-scratching layer 140 is a scratch-resistant and hydrophobic layer, if printing is performed from the surface of the anti-scratching layer 140 away from the adhesive layer 120 when the printing screen 1 prepared by using the printing screen cloth 10 is used for printing, the service life of the printing screen 1 prepared by using the printing screen cloth 10 can reach hundreds of times, and ink can also be saved.

[0100] In one embodiment, when printing using the printing screen 1 made from the printing mesh 10, if printing is performed on the surface of the polyester mesh 110 facing away from the adhesive layer 120, the service life of the printing screen 1 made from the printing mesh 10 can reach thousands of times, for example, 2,000 times, 2,500 times, 3,000 times, or 4,000 times, due to the high strength of the polyester mesh 110. Because the polyester mesh 110 has fine mesh pores 110a, if printing is performed on the surface of the polyester mesh 110 facing away from the adhesive layer 120, the mesh pores 110a of the polyester mesh 110 will be filled with ink. Therefore, compared to printing on the surface of the anti-scratch layer 140 facing away from the adhesive layer 120, printing on the surface of the polyester mesh 110 facing away from the adhesive layer 120 is less ink-efficient.

[0101] See also Figure 8 , Figure 8 for Figure 7 The thickness of the anti-scratch layer 140 is shown in FIG. 1 . The thickness d4 of the anti-scratch layer 140 satisfies: 1 μm≤d4≤3 μm.

[0102] The thickness d4 of the anti-scratch layer 140 may be, but is not limited to, 1 μm, 2 μm, or 3 μm.

[0103] The thickness d4 of the anti-scratch layer 140 satisfies: 1 μm≤d4≤3 μm. On the one hand, this allows the anti-scratch layer 140 to be thinner, and on the other hand, it also allows the anti-scratch layer 140 to have a relatively good anti-scratch effect.

[0104] Please also refer to Figure 9 and Figure 10 , Figure 9 A schematic structural diagram of a printing mesh provided in another embodiment of the present application; Figure 10 For one embodiment Figure 9 The cross-sectional structure diagram of the printing mesh along line II-II is provided in FIG. In this embodiment, the printing mesh 10 includes a polyester mesh 110, an adhesive layer 120, and a removable film layer 130. The polyester mesh 110, adhesive layer 120, and removable film layer 130 are described above and will not be repeated here. Furthermore, the printing mesh 10 includes an edge binding structure 150. The edge binding structure 150 is provided to correspond to the edge of the polyester mesh 110.

[0105] The edging structure 150 is positioned along the edge of the polyester mesh 110 to prevent the polyester mesh 110 from puncturing or cutting the user. In the schematic diagram of this embodiment, the edging structure 150 is positioned along the edges of the polyester mesh 110, adhesive layer 120, and removable film layer 130. This should not be construed as limiting the printing mesh 10 provided in this embodiment. The edging structure 150 may be, but is not limited to, masking tape or rubber strips.

[0106] Specifically, in one embodiment, the polyester mesh 110 includes a plurality of edges 111a, and accordingly, the edging structure 150 includes a plurality of edging portions 150a. Each edging portion 150a is provided corresponding to one edge 111a of the polyester mesh 110, and different edging portions 150a are provided corresponding to different edges 111a. Adjacent edging portions 150a have a notch 150b.

[0107] The printing mesh 10 provided in the embodiments of the present application further includes a binding structure 150. When the printing mesh 10 is applied to the printing screen 1, the binding structure 150 cooperates with the screen frame 20 of the printing screen 1, thereby increasing the friction between the printing mesh 10 and the screen frame 20, facilitating tensioning of the polyester mesh 110 of the printing mesh 10, and thereby improving the printing quality when printing using the printing mesh 10 and the printing screen 1. Furthermore, the binding structure 150 is disposed corresponding to the edge of the polyester mesh 110 and wraps around the edge of the polyester mesh 110.

[0108] Please also refer to Figure 9 and Figure 11 , Figure 11 For another embodiment Figure 9 The cross-sectional structure of the printing mesh along line II-II is provided in FIG. In this embodiment, the printing mesh 10 comprises a polyester mesh 110, an adhesive layer 120, a removable film layer 130, and an anti-scratch layer 140. The polyester mesh 110, adhesive layer 120, removable film layer 130, and anti-scratch layer 140 are described previously and will not be repeated here. Furthermore, the printing mesh 10 includes an edge binding structure 150. The edge binding structure 150 is provided to correspond to the edge of the polyester mesh 110.

[0109] The edging structure 150 is positioned along the edge of the polyester mesh 110 to prevent the polyester mesh 110 from puncturing or cutting the user. The schematic diagram of this embodiment illustrates an example of the edging structure 150 covering the edges of the polyester mesh 110, adhesive layer 120, removable film layer 130, and anti-scratch layer 140. This should not be construed as limiting the printing mesh 10 provided in this embodiment. The edging structure 150 may be, but is not limited to, masking tape or rubber strips.

[0110] It is understandable that in other embodiments, the edging structure 150 may only cover the edge of the polyester mesh 110 .

[0111] It is understandable that in other embodiments, the edge structure 150 may be formed by bending the edge of the polyester mesh 110 inward.

[0112] See also Figure 12 , Figure 12 for Figure 9A schematic diagram of the line width of the edge wrapping structure of the printing screen cloth shown in the middle. The line width W of the edge wrapping structure 150 satisfies: 40mm≤W≤50mm.

[0113] In the present embodiment, the line width W of the edge wrapping structure 150 can be, but is not limited to, 40mm, 41mm, or 42mm, or 43mm, or 44mm, or 45mm, or 46mm, or 47mm, or 48mm, or 49mm, or 50mm.

[0114] When the line width of the edge wrapping structure 150 is small, on the one hand, when the printing screen cloth 10 is applied to the printing screen 1, the printing screen cloth 10 is matched with the screen frame 20 in the printing screen 1, the friction between the printing screen cloth 10 and the screen frame 20 is small, so that the polyester screen thread 110 of the printing screen cloth 10 is not easily tensioned, which affects the printing quality using the printing screen cloth 10. In addition, when the line width of the edge wrapping structure 150 is small, the edge of the polyester screen thread 110 is not well protected, and the edge of the polyester screen thread 110 is also more likely to hurt or cut the user. On the other hand, when the line width of the edge wrapping structure 150 is large, the effective area of the polyester screen thread 110 in the printing screen cloth 10 is reduced, thereby reducing the effective printing area of the printing screen 1 made by using the printing screen cloth 10.

[0115] In the present embodiment, the line width W of the edge wrapping structure 150 satisfies: 40mm≤W≤50mm, on the one hand, when the printing screen cloth 10 is matched with the screen frame 20 in the printing screen 1, the polyester screen thread 110 of the printing screen cloth 10 is easily tensioned, so that the printing quality using the printing screen cloth 10 is better, in addition, the polyester screen thread 110 is not easy to hurt or cut the user; on the other hand, the printing screen 1 made by using the printing screen cloth 10 has a relatively large effective printing area.

[0116] In other embodiments, the line width W of the edge wrapping structure 150 can also be other widths, which are not limited herein.

[0117] The preparation method of the printing screen cloth 10 provided in an embodiment is introduced as follows. The preparation method of the printing screen cloth 10 provided in the present embodiment can be used to prepare the printing screen cloth 10 provided in the previous embodiment. Accordingly, the printing screen cloth 10 provided in the previous embodiment can also be prepared by the preparation method of the printing screen cloth 10 provided in the present embodiment.

[0118] Please refer to Figure 13 and Figure 14 , Figure 13 the flowchart of the preparation method of the printing screen cloth provided in an embodiment of the present application; Figure 14 is Figure 13The method for preparing the printing mesh 10 includes steps S100, S200, S300 and S400. The features of the components involved in S100, S200, S300 and S400 are described above and will not be repeated here.

[0119] S100, providing a polyester mesh 110, wherein the polyester mesh 110 has meshes 110a. For the cross-sectional structure of the polyester mesh 110, please refer to Figure 14 (a) in the.

[0120] In this embodiment, polyester mesh 110, which has good temperature resistance and low cost, can be selected as the base material for the printing mesh 10. Therefore, step S100 is also referred to as the polyester mesh selection step, or polyester mesh selection process. In this embodiment, the polyester mesh includes one of polyester mesh, polyamide mesh, and nylon mesh. Furthermore, the polyester mesh 110 should be selected with an appropriate mesh count (also known as screen count) based on the printing requirements.

[0121] For other details of the polyester mesh 110 , please refer to the description of the polyester mesh 110 in the previous printing mesh 10 , which will not be repeated here.

[0122] S200 , providing an eliminable film layer 130 .

[0123] In one embodiment, the color of the erasable film layer 130 may be, but is not limited to, black, dark brown, or dark gray, etc. When the color of the erasable film layer 130 is black, the erasable film layer 130 may also be referred to as a heat-shrinkable black film.

[0124] The cross-sectional structure corresponding to the film layer 130 can be eliminated. Figure 14 For other details of the removable film layer 130 , please refer to the description of the removable film layer 130 in the printing mesh 10 , which will not be repeated here.

[0125] The preparation method of the printing mesh 10 provided in the embodiment of the present application selects an erasable film layer 130, utilizes the characteristic that the erasable film layer 130 can absorb electromagnetic wave energy (such as laser), and eliminates the heat-shrinkage holes of the erasable film layer 130 after laser processing, thereby facilitating the preparation of the printing mesh 10 and the printing screen 1.

[0126] S300 , the removable film layer 130 is bonded to the polyester mesh 110 using the adhesive layer 120 .

[0127] Furthermore, in one embodiment, when preparing the printing mesh 10, the adhesive layer 120 can be adhered to the surface of the removable film layer 130 to form a whole, and then the adhesive layer 120 in the whole is adhered to the surface of the polyester mesh 110. For details, please refer to Figure 14 (c) andFigure 14 (d) of the polyester screen cloth 110. In this way, the adhesive layer 120 is arranged on the surface of the polyester screen cloth 110 without easily entering the mesh hole 110a of the polyester screen cloth 110.

[0128] It can be understood that the removable film layer 130 is arranged on the surface of the adhesive layer 120 away from the polyester screen cloth 110.

[0129] For other conditions of the adhesive layer 120, please refer to the description of the adhesive layer 120 in the printing screen cloth 10 above, which will not be repeated here.

[0130] S400, the removable film layer 130 is arranged away from the formation of the scratch-resistant layer 140 of the adhesive layer 120.

[0131] In an embodiment, the scratch-resistant layer 140 is a scratch-resistant layer. In other words, the scratch-resistant layer 140 is not only scratch-resistant, but also has a hydrophobic function, so that when the printing screen 1 prepared by using the printing screen cloth 10 is printed, the ink is reduced or even prevented from adhering to the scratch-resistant layer 140, thereby achieving the technical effect of saving ink. It can be understood that in other embodiments, the scratch-resistant layer 140 can also not have a hydrophobic function.

[0132] In an embodiment, the scratch-resistant layer 140 is a silicon-based scratch-resistant layer. For example, when the printing screen cloth 10 is prepared, a silicon-based scratch-resistant coating is applied to the surface of the removable film layer 130 away from the adhesive layer 120 to form a silicon-based scratch-resistant layer.

[0133] Compared with the printing screen cloth 10 without the scratch-resistant layer 140, the printing screen cloth 10 provided by the embodiment of the application includes the scratch-resistant layer 140, which can improve the service life of the printing screen cloth 10.

[0134] After S100, S200, S300 and S400, the printing screen cloth 10 is prepared.

[0135] It can be understood that in an embodiment, when the printing screen cloth 10 includes the polyester screen cloth 110, the adhesive layer 120 and the removable film layer 130, but does not include the scratch-resistant layer 140, the preparation method of the printing screen cloth 10 includes S100, S200 and S300. For details, please refer to the description above, which will not be repeated here.

[0136] The embodiment of the application also provides a printing screen 1. Next, the structure of the printing screen 1 provided by the embodiment of the application will be described in detail.

[0137] Please refer to Figure 15 and Figure 16 , Figure 15 is a structural schematic diagram of the printing screen provided by the embodiment of the application; Figure 16 is Figure 15A cross-sectional structure of the printing screen provided in the embodiment along III-III is shown in the schematic view. In the embodiment, the printing screen 1 comprises a screen frame 20 and a printing screen cloth 10. The screen frame 20 has a receiving hole 20c. The printing screen cloth 10 is arranged on the screen frame 20, and the printing screen cloth corresponds to the receiving hole 20c.

[0138] In the embodiment, the screen frame 20 has a first surface 20a and a second surface 20b arranged oppositely. The receiving hole 20c penetrates the first surface 20a and the second surface 20b.

[0139] The structure of the screen frame 20 is not limited in the application. For example, in an embodiment, the screen frame 20 can be one of a metal screen frame, a wooden screen frame, and a plastic screen frame. The shape of the screen frame 20 can be rectangular, circular, oval, etc., which is not limited in the embodiment. The shape of the receiving hole 20c can be rectangular, circular, oval, etc., which is not limited in the embodiment.

[0140] In the embodiment, the printing screen cloth 10 arranged on the screen frame 20 includes the following cases. The printing screen cloth 10 can be connected to the inner side wall of the screen frame 20, or connected to the first surface 20a of the frame body, or connected to the second surface 20b of the frame body, or even connected to the peripheral side surface of the frame body connecting the first surface 20a and the second surface 20b. The position of the printing screen cloth 10 connected to the screen frame 20 is not limited in the embodiment, and the structure shown in the schematic view of the embodiment should not be understood as a limitation of the printing screen 1 provided in the embodiment.

[0141] It can be understood that, in an embodiment, the printing screen cloth 10 can be fixed to the screen frame 20. In other embodiments, the printing screen cloth 10 can be detachably connected to the screen frame 20.

[0142] It can be understood that, in the schematic view of the embodiment, the printing screen cloth 10 can be tightly connected to the screen frame 20, or non-tightly connected to the screen frame 20.

[0143] The preparation method of the printing screen 1 provided in an embodiment is introduced below. The preparation method of the printing screen 1 provided in the embodiment can be used to prepare the printing screen 1 provided in the previous embodiment. Correspondingly, the printing screen 1 provided in the previous embodiment can also be prepared by the preparation method of the printing screen 1 provided in the embodiment.

[0144] Please refer to Figure 17 , Figure 17 The flowchart of the preparation method of the printing screen provided in the embodiment is shown. The preparation method of the printing screen 1 comprises S100, S200, S300, S400, and S500. S100, S200, S300, and S400 are described above and will not be repeated here.

[0145] S100, providing a polyester screen gauze 110, and the polyester screen gauze 110 has a mesh 110a.

[0146] In the embodiment, a polyester screen gauze with good temperature resistance and low cost can be selected as the base material of the printing screen cloth 10. Therefore, the step S100 is also called a polyester screen selection step, or a polyester screen selection process. In the embodiment, the polyester screen gauze includes one of a polyester screen gauze, a nylon screen gauze, and a polyamide screen gauze.

[0147] Other conditions of the polyester screen gauze 110 are described in the foregoing printing screen cloth 10, and are not repeated here.

[0148] S200, providing an erasable film layer 130.

[0149] In an embodiment, the color of the erasable film layer 130 can be, but is not limited to, black, or black brown, or black gray, etc. When the color of the erasable film layer 130 is black, the erasable film layer 130 can also be called a heat-shrinkable black film.

[0150] Other conditions of the erasable film layer 130 are described in the foregoing printing screen cloth 10, and are not repeated here.

[0151] The preparation method of the printing screen cloth 10 provided in the embodiment selects the erasable film layer 130, and uses the feature that the erasable film layer 130 can absorb electromagnetic wave energy (such as laser). After the erasable film layer 130 is processed by laser, the heat-shrinkable hole is formed, thereby facilitating the preparation of the printing screen cloth 10 and the printing screen plate 1.

[0152] S300, using the adhesive layer 120 to adhere the erasable film layer 130 to the polyester screen gauze 110.

[0153] Further, in an embodiment, when the printing screen cloth 10 is prepared, the adhesive layer 120 can be adhered to the surface of the erasable film layer 130 to form a whole, and then the adhesive layer 120 in the whole is adhered to the surface of the polyester screen gauze 110. In this way, the adhesive layer 120 is arranged on the surface of the polyester screen gauze 110, and is not easy to enter the mesh 110a of the polyester screen gauze 110.

[0154] It can be understood that the erasable film layer 130 is arranged on the surface of the adhesive layer 120 away from the polyester screen gauze 110.

[0155] Other conditions of the adhesive layer 120 are described in the foregoing printing screen cloth 10, and are not repeated here.

[0156] S400, forming a scratch-resistant layer 140 away from the adhesive layer 120 of the erasable film layer 130.

[0157] In an embodiment, the scratch-resistant layer 140 is a scratch-resistant and hydrophobic layer. In other words, the scratch-resistant layer 140 is not only scratch-resistant, but also has a hydrophobic function, so as to reduce or even prevent ink from adhering to the scratch-resistant layer 140 when the printing screen 1 prepared by using the printing screen cloth 10 is used for printing, thereby achieving the technical effect of saving ink. It can be understood that in other embodiments, the scratch-resistant layer 140 can also not have a hydrophobic function.

[0158] In an embodiment, the scratch-resistant layer 140 is a silicon-based scratch-resistant and hydrophobic coating layer. For example, when the printing screen cloth 10 is prepared, a silicon-based scratch-resistant and hydrophobic coating is applied to the surface of the eliminable film layer 130 away from the adhesive layer 120 to form a silicon-based scratch-resistant and hydrophobic coating layer.

[0159] Compared with the printing screen cloth 10 without the scratch-resistant layer 140, the printing screen cloth 10 provided by the embodiment of the present application includes the scratch-resistant layer 140, which can improve the service life of the printing screen cloth 10.

[0160] S500, engraving the eliminable film layer 130 to form a predetermined pattern on the printing screen cloth 10.

[0161] In an embodiment, the eliminable film layer 130 can be engraved by using electromagnetic wave energy (such as laser). When the eliminable film layer 130 is engraved by using laser, the laser can be used to engrave from one side of the eliminable film layer 130 towards the polyester screen gauze 110. For example, appropriate engraving parameters are selected to make a fine screen hole 110a pattern to achieve plate making. Therefore, S500 is also called a laser plate making process, or a laser plate making technology.

[0162] Specifically, a predetermined pattern of laser engraving can be designed, and the engraving parameters of the laser engraving machine can be adjusted to adapt to the characteristics of the polyester screen gauze. Then, according to the predetermined pattern, the eliminable film layer 130 is laser-engraved, the parts of the eliminable film layer 130 irradiated by the laser are heat-shrunk to form holes, and the parts of the eliminable film layer 130 not irradiated by the laser are retained. In this way, the eliminable film layer 130 can be laser-engraved according to the predetermined pattern to form a plurality of holes on the screen cloth, and the plurality of holes form the predetermined pattern. Therefore, the printing screen 1 with a fine screen hole 110a forming a predetermined pattern is prepared by using the printing screen cloth 10.

[0163] It can be understood that in an embodiment, before S500, the method for preparing the printing screen 1 further includes: arranging the printing screen cloth 10 in the screen frame 20, so as to facilitate the user to laser engrave the printing screen cloth 10.

[0164] It can be understood that when the printing screen cloth 10 in the printing screen 1 includes the scratch-resistant layer 140, "arranging the printing screen cloth 10 in the screen frame 20 to facilitate the user to laser engrave the printing screen cloth 10" can be located after S400 and before S500. When the printing screen cloth 10 in the printing screen 1 does not include the scratch-resistant layer 140, "arranging the printing screen cloth 10 in the screen frame 20 to facilitate the user to laser engrave the printing screen cloth 10" can be located after S300 and before S500.

[0165] When the printing screen 1 is made, the printing screen 1 is installed on a screen printing machine to print the target object.

[0166] In summary, the printing screen cloth 10 provided by the embodiment of the present application has the following technical effects.

[0167] The printing effect of the printing screen cloth 10 provided by the embodiment of the present application is better. The printing screen 1 provided by the embodiment of the present application includes the polyester screen mesh 110, and compared with the metal screen mesh in the related art, the thickness of the polyester screen mesh in the printing screen 1 provided by the embodiment of the present application is thinner. In the case that the radial dimension of the screen hole 110a is constant, the depth of the screen hole 110a in the printing screen cloth 10 is smaller. When the printing screen 1 made by using the printing screen cloth 10 is used for printing, the ink remaining in the screen hole 110a is relatively less, so that the ink leakage phenomenon is reduced, and the quality of the pattern printed on the target object is higher when the printing screen 1 made by using the printing screen cloth 10 is used to print the preset pattern on the target object.

[0168] In addition, generally, the printing screen cloth in the related art includes the metal screen mesh and the photosensitive glue, and the cost of the metal screen mesh is higher. Compared with the metal screen mesh in the related art, the cost of the printing screen cloth 10 provided by the embodiment of the present application is lower.

[0169] In addition, the printing screen cloth 10 provided by the embodiment of the present application can eliminate the hole formed by the thermal shrinkage of the film layer 130 under the action of the laser by using the laser engraving process through the laser engraving technology, thereby reducing the laser power and improving the engraving speed.

[0170] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also regarded as the protection scope of the present application.

Claims

1. A printing screen cloth, characterized in that, The printing screen cloth comprises: a polyester screen gauze having mesh holes; a bonding layer arranged on one side of the polyester screen gauze; and an erasable film layer arranged on the side of the bonding layer away from the polyester screen gauze, the erasable film layer being capable of partially erasing to form holes.

2. The printing screen cloth according to claim 1, wherein The polyester screen gauze is one of polyester screen gauze, nylon screen gauze, polyethylene screen gauze and polypropylene screen gauze; and / or, The mesh number Mn of the polyester screen gauze satisfies: 70 mesh ≤ Mn ≤ 350 mesh; and / or, The thickness d1 of the polyester screen gauze satisfies: 70 μm ≤ d1 ≤ 110 μm.

3. The printing screen cloth according to claim 1, wherein The absorption rate Abs1 of the erasable film layer to blue laser light satisfies: 90% ≤ Abs1 ≤ 100%; and / or, The erasable film layer comprises a heat-shrinkable PET film layer or a heat-shrinkable plastic film.

4. The printing screen cloth according to claim 3, wherein The thickness d2 of the erasable film layer satisfies: 1 μm ≤ d2 ≤ 10 μm.

5. The printing screen cloth according to claim 4, wherein The thickness d2 of the erasable film layer satisfies: 4 μm ≤ d2 ≤ 6.0 μm.

6. The printing screen cloth of claim 1 wherein, The bonding layer is a low-temperature curing thermosetting glue or a pressure-sensitive adhesive.

7. The printing screen cloth of claim 1 wherein, The absorption rate Abs2 of the bonding layer to blue laser light satisfies: 90% ≤ Abs2 ≤ 100%.

8. The printing screen cloth according to claim 7, wherein The thickness d3 of the bonding layer satisfies: 1 μm ≤ d3 ≤ 30 μm.

9. The printing screen cloth according to claim 8, wherein The thickness d3 of the bonding layer satisfies: 1 μm ≤ d3 ≤ 12 μm.

10. The printing screen cloth of claim 1 wherein, The bonding layer is a transparent adhesive, and the thickness d3 of the bonding layer satisfies: 1 μm ≤ d3 ≤ 5 μm.

11. The printing screen cloth according to any one of claims 1 to 10, wherein The printing screen cloth further comprises: a scratch-resistant layer arranged on the side of the erasable film layer away from the bonding layer.

12. The printing screen cloth of claim 11, wherein, The thickness d4 of the scratch-resistant layer satisfies: 1 μm ≤ d4 ≤ 3 μm.

13. The printing screen cloth according to any one of claims 1 to 10, wherein The printing screen cloth further comprises: an edge covering structure arranged corresponding to the edges of the polyester screen gauze and covering the edges of the polyester screen gauze.

14. The printing screen cloth of claim 13, wherein, The line width W of the edge covering structure satisfies: 40 mm ≤ W ≤ 50 mm.

15. A printing screen, characterized in that The printing screen comprises: a screen frame having a receiving hole; and The printing screen cloth according to any one of claims 1 to 14 is arranged on the screen frame, and the printing screen cloth is arranged corresponding to the receiving hole.

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