Screen printing net tool capable of reducing thickness of photosensitive paste

Abstract

The utility model discloses a silk-screen netting gear capable of reducing the thickness of photosensitive paste. The silk-screen netting gear comprises a gauze, wherein the top and the bottom of the gauze are respectively provided with a photosensitive paste attachment surface and a water film attachment surface; the aluminum frame is arranged on the outer side of the gauze and used for pressing and fixing the gauze; and the water film is attached to the surface of the water film binding surface on the gauze and upwards permeates into the gauze to form an embedded layer. Wherein the surface of the photosensitive paste attachment surface is coated with a photosensitive glue layer. According to the silk-screen netting gear capable of reducing the thickness of the photosensitive paste, firstly, water is sprayed on the water film binding surface, and the water film surface of the water film is attached to the water film binding surface, so that the water film surface can permeate into the gaps of the netting gauze to form an embedded layer due to the hydrophilicity of the water film surface, and when the photosensitive paste attaching surface is coated with the photosensitive paste, the thickness of the photosensitive paste is reduced. Therefore, the overall thickness of the photosensitive adhesive layer can be effectively reduced, and the peak value of ink at the edge of a visual area after silk-screen printing of the ink is reduced.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and in particular to a screen printing screen that reduces the thickness of photosensitive paste. Background Technology

[0002] Screen printing refers to the process of creating a screen printing plate with images and text using a photosensitive method. Screen printing consists of five main elements: the screen printing plate, the squeegee, the ink, the printing table, and the substrate. It utilizes the basic principle that ink can pass through the mesh openings of the screen printing plate in the image areas, while ink cannot pass through the openings in the non-image areas. During printing, ink is poured into one end of the screen printing plate, and a squeegee applies pressure to the ink areas while moving at a constant speed towards the other end. As the squeegee moves, the ink is forced through the mesh openings in the image areas onto the substrate.

[0003] The air bubbles generated during the film lamination process are highly correlated with the ink thickness at the edge of the cover plate viewing area. Traditional screen printing uses a dry lamination process, as shown in the instruction manual. Figure 10 As shown, the mesh openings of the mesh 1-2 are first blocked with photosensitive emulsion 1-1, and then the water film 1-3 is applied. At this time, due to its own penetration, the thickness of the photosensitive emulsion 1-1 on the back includes the thickness of the mesh 1-2. As a result, after the screen printing pattern is made, the overall thickness of the photosensitive emulsion is too thick, the ink peak at the edge of the back view area of ​​the screen printing ink is large, and the thickness is too high. This makes it easy for air bubbles to be generated when the film module is bonded. Therefore, a screen printing screen tool that reduces the thickness of the photosensitive emulsion is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a screen printing screen that reduces the thickness of the photosensitive emulsion to address the above-mentioned technical problems. This involves changing the conventional screen manufacturing method by first attaching a water-based film, which, through its hydrophilicity, allows it to penetrate into the screen mesh. This reduces the thickness of the photosensitive emulsion after attachment, thereby reducing the overall thickness of the photosensitive emulsion layer.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A screen printing screen for reducing the thickness of photosensitive emulsion, comprising:

[0007] The mesh has a photosensitive paste adhesion surface at its top and a water-film bonding surface at its bottom.

[0008] An aluminum frame is provided on the outside of the mesh for pressing and fixing it;

[0009] Water film, which is attached to the surface of the water film bonding surface on the mesh and penetrates upward into the mesh to form an embedded layer;

[0010] The surface of the photosensitive paste adhering surface is coated with a photosensitive adhesive layer, and the bottom of the photosensitive adhesive layer is in contact with the top surface of the screen gauze after being penetrated by the embedding layer.

[0011] Further, the top of the water film of the water film is in contact with water and can be penetrated into the screen gauze to form an embedding layer.

[0012] Further, the bottom of the water film of the water film has a drug film surface for pattern exposure.

[0013] Further, the water film has a pattern non-silk screen area, and the water film has a pattern silk screen area except the pattern non-silk screen area.

[0014] Further, the area of the photosensitive adhesive layer corresponding to the pattern silk screen area is an uncured area.

[0015] Further, the area of the photosensitive adhesive layer corresponding to the pattern non-silk screen area is a cured area.

[0016] Further, the aluminum frame comprises an upper aluminum frame body and a lower aluminum frame body.

[0017] The upper aluminum frame body and the lower aluminum frame body form a compression gap therebetween.

[0018] Further, the edge of the screen gauze is disposed in the compression gap for being compressed by the upper aluminum frame body and the lower aluminum frame body.

[0019] Further, a plurality of elastic strips are fixed to the inner side of the lower aluminum frame body, and the plurality of elastic strips are equidistantly distributed along the height direction of the lower aluminum frame body.

[0020] Further, a bolt is also threaded at the edge of the top of the upper aluminum frame body, and rotating the bolt can fasten one end of the bolt in the lower aluminum frame body to compress the screen gauze.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] The screen printing net provided by the present application changes the conventional screen printing net manufacturing method, sprays water on the water film adhering surface, and attaches the water film of the water film to the water film adhering surface. The water film can be penetrated into the screen gauze gap to form an embedding layer due to the hydrophilicity of the water film. When the photosensitive adhesive layer is coated on the photosensitive paste adhering surface, the embedding layer prevents the photosensitive adhesive layer from penetrating downward, effectively reduces the overall thickness of the photosensitive adhesive layer, and is more conducive to reducing the peak value of the screen printing ink at the edge of the screen printing ink rear view area. The difficulty of the OCA film in absorbing the height difference is reduced, thereby effectively reducing the problem of air bubbles generated by the film module.

[0023] The design of the upper and lower aluminum frames allows the edges of the mesh to be placed within the clamping gap. The friction between the elastic strip and the mesh effectively moves and tightens the edges of the mesh, making the mesh tighter overall. In addition, the bolt design facilitates the disassembly and separation of the upper and lower aluminum frames, making it easy to replace the mesh independently. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the screen printing mesh for reducing the thickness of photosensitive paste provided by this utility model;

[0025] Figure 2 A schematic diagram of the structure of the water-film and photosensitive emulsion layer of the screen printing mesh for reducing the thickness of the photosensitive emulsion provided by this utility model;

[0026] Figure 3 A schematic diagram of the photosensitive paste adhesion surface and the water-film bonding surface of the screen printing mesh for reducing the thickness of the photosensitive paste provided by this utility model;

[0027] Figure 4 A schematic diagram of the embedded layer structure of the screen printing screen for reducing the thickness of photosensitive paste provided by this utility model;

[0028] Figure 5 This invention provides a screen printing screen for reducing the thickness of photosensitive emulsion. Figure 4 Enlarged structural diagram at point A in the middle;

[0029] Figure 6 A schematic diagram of the photosensitive adhesive layer structure of the screen printing mesh with reduced photosensitive emulsion thickness provided by this utility model;

[0030] Figure 7 A schematic diagram of the photosensitive adhesive layer of the screen printing mesh with reduced photosensitive paste thickness provided by this utility model;

[0031] Figure 8 A schematic diagram of the photosensitive adhesive layer in the screen printing mesh with reduced photosensitive emulsion thickness provided by this utility model;

[0032] Figure 9 A schematic diagram of the aluminum frame structure of the screen printing mesh for reducing the thickness of photosensitive paste provided by this utility model;

[0033] Figure 10 A schematic diagram illustrating the manufacturing structure of a conventional screen printing mesh provided by this utility model.

[0034] The markings in the diagram are explained as follows:

[0035] 1. Mesh lining; 11. Photosensitive emulsion adhesion surface; 12. Water film bonding surface;

[0036] 2. Aluminum frame, 21. Upper aluminum frame, 22. Lower aluminum frame, 23. Clamping gap, 24. Elastic strip, 25. Bolt;

[0037] 3. Water film 3, embedding layer 31, water film surface 32, emulsion film surface 33;

[0038] Non-silk screen printing area 330, silk screen printing area 331;

[0039] Photosensitive adhesive layer 4, uncured area 41, cured area 42. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0041] As described in the background art, as shown in the attached specification. Figure 10 As shown, the mesh openings of the mesh 1-2 are first blocked with photosensitive paste 1-1, and then water film 1-3 is applied. At this time, due to its own penetration, the thickness of the photosensitive paste 1-1 on the back includes the thickness of the mesh 1-2. As a result, after the screen printing pattern is completed, the overall photosensitive paste thickness is too thick, the ink peak at the edge of the screen printing ink back view area is large, and the excessive thickness causes bonding bubbles.

[0042] To solve this technical problem, this utility model provides a screen printing screen with reduced photosensitive paste thickness, which is applied to screen printing stencils.

[0043] For details, please refer to Figures 1-10 The screen printing screen for reducing the thickness of the photosensitive emulsion specifically includes:

[0044] The mesh 1 has a photosensitive paste adhesion surface 11 and a water film bonding surface 12 at its top and bottom, respectively.

[0045] An aluminum frame 2 is located on the outside of the mesh 1 for pressing and fixing it.

[0046] Water film 3 is attached to the surface of the water film bonding surface 12 on the mesh 1 and penetrates upward into the mesh 1 to form an embedded layer 31;

[0047] The photosensitive paste adhesion surface 11 is coated with a photosensitive adhesive layer 4, and the bottom of the photosensitive adhesive layer 4 is kept in contact with the top surface of the mesh 1 by the action of the infiltrated embedding layer 31.

[0048] The silk screen printing net device for reducing the thickness of photosensitive paste provided by the utility model changes the conventional net device manufacturing method, first sprays water on the water film attaching surface 12, and then attaches the water film surface 32 of the water film film 3 to it, so that the water film surface 32 can penetrate into the gap between the net yarn 1 to form the embedding layer 31, and when the photosensitive paste attaching surface 11 is coated with photosensitive glue, the embedding layer 31 can prevent the penetration of the photosensitive glue, so that the overall thickness of the photosensitive glue layer 4 can be effectively reduced, the peak value of the silk printing ink in the rear view area edge of the silk printing ink can be more effectively reduced, the difficulty of the OCA film absorption height difference is reduced, and the problem of bubbles generated by the film module attachment is effectively reduced.

[0049] In order for those skilled in the art to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0050] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0051] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0052] Embodiment one

[0053] Please refer to Figures 1-10 A silk screen printing net device for reducing the thickness of photosensitive paste, as shown in the figure, comprises: a net yarn 1, which has a photosensitive paste attaching surface 11 on the top and a water film attaching surface 12 on the bottom;

[0054] An aluminum frame 2 is arranged on the outer side of the net yarn 1 for compression and fixation;

[0055] A water film film 3 is attached to the surface of the water film attaching surface 12 on the net yarn 1 and penetrates into the net yarn 1 to form an embedding layer 31, wherein the surface of the photosensitive paste attaching surface 11 is coated with a photosensitive glue layer 4, and the bottom of the photosensitive glue layer 4 is in contact with the top surface of the net yarn 1 under the action of the embedding layer 31 after penetration;

[0056] The top of the water film film 3 has a water film surface 32, which can penetrate into the net yarn 1 to form an embedding layer 31 after contacting water, as Figure 4 and Figure 5 The water film film 3 penetrating into the net yarn 1 is the embedding layer 31;

[0057] In the process of making the screen, water is sprayed on the surface of the water film adhering surface 12, and the water film surface 32 on the water film sheet 3 can also be sprayed if necessary. Then, the water film surface 32 on the water film sheet 3 is aligned with the water film adhering surface 12 at the bottom of the screen gauze 1 for adhering. During the adhering process, the water film surface 32 on the water film sheet 3 is subjected to the hydrophilic effect of itself and penetrates into the mesh holes of the screen gauze 1. Through the penetration, the screen gauze 1 can be effectively filled to form the embedded layer 31.

[0058] Then, the photosensitive glue is brushed on the photosensitive paste adhering surface 11. During the brushing process, since most of the mesh holes below have been filled by the embedded layer 31, a small part of the photosensitive glue will fill the unfilled mesh holes. The thickness of the photosensitive glue layer 4 of the screen made in this way is thinner than that of the conventional screen. This can reduce the thickness of the ink in the process of cap plate silk printing, which is more conducive to reducing the peak value of the ink at the edge of the silk printing ink after viewing, reducing the difficulty of the OCA film absorbing the height difference, and effectively reducing the problem of air bubbles generated by the film module adhering.

[0059] Embodiment Two

[0060] The silk screen with reduced photosensitive paste thickness provided in Embodiment One is further optimized. Specifically, as shown in Figure 4 the bottom of the water film sheet 3 has a drug film surface 33 for pattern exposure;

[0061] The water film sheet 3 has a pattern non-silk printing area 330. The water film sheet 3 has a pattern silk printing area 331 except for the pattern non-silk printing area 330;

[0062] The pattern non-silk printing area 330 is the blank area, and the pattern silk printing area 331 is the picture line that needs to be silk printed;

[0063] The area of the photosensitive glue layer 4 corresponding to the pattern silk printing area 331 is the uncured area 41, and the area of the photosensitive glue layer 4 corresponding to the pattern non-silk printing area 330 is the cured area 42;

[0064] In Embodiment One, after the water film sheet 3 is attached and the photosensitive glue is brushed, it is simultaneously placed in the light source. The light source irradiates the photosensitive glue layer 4 from the side of the drug film surface 33. During the irradiation process, the pattern silk printing area 331 on the water film sheet 3 blocks the light. The blocked light cannot pass through and cannot form irradiation on the uncured area 41 of the photosensitive glue. Similarly, the pattern non-silk printing area 330 on the water film sheet 3 does not block the light. The light can pass through the pattern non-silk printing area 330 and irradiate the corresponding cured area 42. The photosensitive glue in the cured area 42 is cured under the action of the light.

[0065] Then the net is taken out and the water film 3 is removed, and then the net is washed with water. During the washing process, the photosensitive adhesive in the uncured area 41 of the photosensitive adhesive layer 4 is removed (as shown in Figure 7 and Figure 8 As shown, the area of the photosensitive adhesive layer 4 that needs to be silk-screened is in a hollow state, so that after silk-screening, ink can pass through and be silk-screened onto the surface of the cover plate below), and the cured fixed area 42 remains on the net 1 for subsequent silk-screening.

[0066] The aluminum frame 2 and the net 1 in the above-mentioned embodiment one are fixed by conventional glue bonding, and the specific steps are as follows:

[0067] First, place the aluminum frame 2 at the bottom of the corresponding net drawing machine. Then, draw the net 1 to the required tension state by the net drawing machine, and then raise the aluminum frame 2 to the height of contact with the net 1 by the lifting mechanism. Then, apply glue to the position where the aluminum frame 2 contacts the net 1 by using a brush, and combine the two by the adhesive force of the glue, thereby completing the preliminary production of the net.

[0068] Embodiment three

[0069] The silk-screening net provided in embodiment one or two for reducing the thickness of the photosensitive paste is further optimized. The conventional net described in embodiment two is connected and fixed by gluing the net 1 and the aluminum frame 2, but this fixing method has certain defects in actual application, for example, the net structure is integrated by gluing, and the net 1 cannot be quickly and independently replaced without damaging the aluminum frame 2. Therefore, the above technical defects are improved in this embodiment, as follows:

[0070] As shown in Figure 9 The aluminum frame 2 includes an upper aluminum frame body 21 and a lower aluminum frame body 22, wherein a compression gap 23 is formed between the upper aluminum frame body 21 and the lower aluminum frame body 22.

[0071] The edge of the net 1 is disposed in the compression gap 23 for being compressed by the upper aluminum frame body 21 and the lower aluminum frame body 22.

[0072] A plurality of elastic strips 24 are fixed to the inner side of the lower aluminum frame body 22, and the plurality of elastic strips 24 are equidistantly distributed along the height direction of the lower aluminum frame body 22.

[0073] A bolt 25 is also provided at the edge of the top of the upper aluminum frame body 21, and rotating the bolt 25 can fasten one end of the bolt 25 in the lower aluminum frame body 22 to compress the net 1.

[0074] In the actual process of fixing the netting 1, the edge of the netting 1 is covered on the surface of the upper aluminum frame 21, and then the lower aluminum frame 22 is covered on the upper aluminum frame 21, in the covering process, the elastic strip 24 on the lower aluminum frame 22 will resist the edge of the netting 1 and drive the netting to be tightened, finally when the lower aluminum frame 22 is completely closed on the upper aluminum frame 21, the netting 1 is in a tight state, at this time, rotating the bolt 25 to make one end thereof be screwed on the surface of the lower aluminum frame 22 can complete the fixing of the aluminum frame 2.

[0075] In the embodiment, the edge of the netting 1 can be placed in the compression gap by the design of the upper aluminum frame 21 and the lower aluminum frame 22, and the edge of the netting 1 can be effectively moved and tightened by the friction between the elastic strip 24 and the netting 1, so that the netting 1 is more tightened as a whole, and the design of the bolt 25 facilitates the disassembly and separation of the upper aluminum frame 21 and the lower aluminum frame 22, and facilitates the independent replacement of the netting.

[0076] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] Obviously, the above-described embodiments are only some embodiments of the present application, not all embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features therein. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A screen printing screen for reducing the thickness of photosensitive paste, characterized in that, It includes: Netting (1), which has a photosensitive paste adhesion surface (11) and a water film adhesion surface (12) at the top and bottom of the netting (1) respectively; Aluminum frame (2) provided on the outer side of the netting (1) for compression and fixation; Water film film (3) attached to the water film adhesion surface (12) surface of the netting (1) and penetrated into the netting (1) to form an embedded layer (31) upward; Wherein, the surface of the photosensitive paste adhesion surface (11) is coated with a photosensitive adhesive layer (4), and the bottom of the photosensitive adhesive layer (4) is affected by the embedded layer (31) after penetration, which can keep in contact with the top surface of the netting (1).

2. The silk screen mesh of claim 1, wherein, The top of the water film film (3) has a water film surface (32), which can penetrate into the netting (1) to form an embedded layer (31) after contacting water.

3. The silk screen mesh of claim 1, wherein the thickness of the photosensitive paste is reduced. The bottom of the water film film (3) has a drug film surface (33) for pattern exposure.

4. The silk screen of claim 1, wherein the thickness of the photosensitive paste is reduced. The water film film (3) has a pattern non-silk screen area (330), and the area of the water film film (3) except the pattern non-silk screen area (330) is a pattern silk screen area (331).

5. The silk screen of claim 4, wherein the thickness of the photosensitive paste is reduced. The area of the photosensitive adhesive layer (4) corresponding to the pattern silk screen area (331) is an uncured area (41).

6. The silk screen of claim 5, wherein the thickness of the photosensitive paste is reduced. The area of the photosensitive adhesive layer (4) corresponding to the pattern non-silk screen area (330) is a cured area (42).

7. The silk screen of claim 1, wherein the thickness of the photosensitive paste is reduced. The aluminum frame (2) includes an upper aluminum frame body (21) and a lower aluminum frame body (22); Wherein, the upper aluminum frame body (21) and the lower aluminum frame body (22) form a compression gap (23) therebetween.

8. The silk screen of claim 7, wherein the thickness of the photosensitive paste is reduced. The edge of the netting (1) is disposed in the compression gap (23) for compression by the upper aluminum frame body (21) and the lower aluminum frame body (22).

9. The silk screen of claim 8, wherein the thickness of the photosensitive paste is reduced. The inner side of the lower aluminum frame body (22) is fixed with an elastic strip (24), and the elastic strip (24) has a plurality of elastic strips (24) distributed equidistantly along the height direction of the lower aluminum frame body (22).

10. The silk screen of claim 9, wherein the thickness of the photosensitive paste is reduced. The edge of the top of the upper aluminum frame body (21) is also provided with a bolt (25), and rotating the bolt (25) can make one end of the bolt (25) fasten in the lower aluminum frame body (22) to compress the netting (1).

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