Ink printing bubble removal mechanism

Abstract

This utility model discloses an ink printing bubble removal mechanism, relating to the field of ink printing. The mechanism includes a third layer of ink printing stencil with R-shaped grooves at its four corners to collect and expel air. Air guide grooves are equidistantly spaced around the R-shaped grooves. A first ink layer is printed on the inner side of the outer glass, and a second layer is printed on top of the first layer. A height difference exists between the R-shaped grooves and the second ink layer to collect air. This mechanism extends the four right angles of the third ink printing stencil outwards to form R-shaped grooves. The height difference between the R-shaped grooves and the second ink layer provides space for collecting minute amounts of trapped air. When bonding OCA adhesive, trapped air can be expelled to the R-shaped grooves, effectively preventing the formation of air bubbles in the visible area and improving the product's appearance quality.

Description

Technical Field

[0001] The utility model relates to the technical field of ink printing, in particular to an ink printing bubble discharging mechanism. Background Art

[0002] In the manufacturing process of touch screen covers, ink printing is one of the key links, and its quality directly affects the appearance and performance of the touch screen. The original steel mesh design pattern for ink printing on the touch screen cover is a "hui" character shape, and the four corners of the inner "kou" character shape are all right angles. During the printing process, it is necessary to use this steel mesh to print three layers of ink.

[0003] This design brings a series of problems in actual production. Due to printing three layers of ink, a certain thickness will be formed in the ink area, resulting in an obvious height difference with the smooth area where no ink is printed. When the OCA glue lamination process is carried out, this height difference becomes the root cause of bubble generation. During the lamination process, the OCA glue cannot completely fill the gap between the ink area and the smooth area, and air is trapped in it to form bubbles, resulting in product quality problems.

[0004] Therefore, it is of great practical significance to develop an ink printing bubble discharging mechanism that can effectively solve the above problems. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides an ink printing bubble discharging mechanism, which solves the problem that during the lamination process of the touch screen cover, the OCA glue cannot completely fill the gap between the ink area and the smooth area, and air is trapped in it to form bubbles.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: The ink printing bubble discharging mechanism includes a first-layer ink printing steel mesh and a second-layer ink printing steel mesh. The first-layer ink printing steel mesh is used to print the first ink layer of the touch screen cover, and the second-layer ink printing steel mesh is used to print the second ink layer. A third-layer ink printing steel mesh is arranged on the second-layer ink printing steel mesh, and the third-layer ink printing steel mesh is used to print the third ink layer of the touch screen cover. R-angle grooves extend at the four corners of the third-layer ink printing steel mesh. There is a height difference between the R-angle grooves and the second ink layer, and the R-angle grooves are used to accommodate the displaced air.

[0007] Preferably, air guiding grooves are equidistantly arranged around the R-angle grooves, and the air guiding grooves are used to converge the gas to the R-angle grooves.

[0008] Preferably, the R-angle grooves are connected to the air guiding grooves.

[0009] Preferably, the first ink layer produced by the first-layer ink printing steel mesh is printed on the inner side of the appearance glass.

[0010] Preferably, the second layer of ink produced by the second layer of ink printing stencil is printed on the first ink layer.

[0011] Preferably, a black underlayer is provided above the third ink layer produced by the third ink printing stencil.

[0012] Its beneficial effects are as follows:

[0013] 1. The ink printing bubble removal mechanism extends the four right angles of the third layer ink printing stencil outward into R-corner grooves. The height difference between the R-corner grooves and the second layer ink provides a space for collecting small amounts of trapped air. When bonding OCA adhesive, the trapped air can be squeezed out to the R-corner grooves, effectively preventing the generation of bubbles in the visible area.

[0014] 2. The ink printing bubble removal mechanism has air guide grooves equidistantly opened around the R-corner groove. The air guide grooves can guide and gather the trapped air generated during the bonding process into the R-corner groove, so as to facilitate the collection and storage of trapped air. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of Part A of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0019] In the diagram: 1. First layer of ink-printed stencil; 2. Second layer of ink-printed stencil; 3. Third layer of ink-printed stencil; 4. Rounded corner groove; 5. Air guide groove; 6. Outer glass; 7. Ink layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] This utility model discloses an ink printing bubble removal mechanism, according to the appendix. Figure 1-2 As shown, it includes a first ink printing stencil 1 and a second ink printing stencil 2, using standard stencils with the original technical parameters. The first ink printing stencil 1 is used to print the first ink layer of the touch screen cover, and the second ink printing stencil 2 is used to print the second ink layer. A third ink printing stencil 3 is provided on the second ink printing stencil 2, and the third ink printing stencil 3 is used to print the third ink layer of the touch screen cover. R-corner grooves 4 extend from the four corners of the third ink printing stencil 3. There is a height difference between the R-corner grooves and the second ink layer. The R-corner grooves 4 are used to collect the expelled air.

[0023] According to the appendix Figure 1-2 As shown, furthermore, gas guide grooves 5 are equidistantly provided around the R-corner groove 4, and the gas guide grooves 5 are used to gather the gas to the R-corner groove 4.

[0024] According to the appendix Figure 1-2 As shown, the R-corner grooves 4 are further connected to the air guide grooves 5. By opening R-corner grooves 4 at the four corners of the third layer of ink-printed stencil 3, a dedicated collection space is provided for the trace amounts of trapped air generated during OCA adhesive bonding. Simultaneously, the air guide grooves 5, equidistantly spaced around the R-corner grooves 4, effectively gather the gas to the R-corner grooves 4, further enhancing the air-bubble removal effect. This design allows air to escape smoothly during the bonding process, preventing air bubbles from forming in the visible area, greatly improving the appearance quality of the touchscreen, and making the product surface smoother and more aesthetically pleasing.

[0025] According to the appendix Figure 1-3 As shown, furthermore, the first ink layer produced by the first ink printing steel mesh 1 is printed on the inside of the outer glass 6.

[0026] According to the appendix Figure 1-3 As shown, further, the second layer of ink produced by the second layer of ink printing stencil 2 is printed on the first ink layer.

[0027] According to the appendix Figure 1-3 As shown, furthermore, a black underlayer 7 is provided above the third ink layer produced by the third ink printing stencil 3.

[0028] Working principle: First, a first layer of ink is printed on the stencil 1 using the first layer of ink, according to the original technical parameters, on the inside of the outer glass 6. This first layer of ink provides the foundation for subsequent printing, and its printing quality and uniformity have a significant impact on subsequent layers. Next, after the first ink layer dries or cures, a second layer of ink is printed on the stencil 2 using the second layer of ink, also according to the original technical parameters, on top of the first ink layer. The printing of the second ink layer further enriches the color and functional characteristics of the touchscreen cover.

[0029] After the second ink layer dries or cures, a third ink printing stencil 3 is used to print the third ink layer. R-corner grooves 4 are formed at the four corners of the third ink printing stencil 3, and air guide grooves 5 are equidistantly formed around the R-corner grooves 4, with the R-corner grooves 4 and air guide grooves 5 connected. During the printing of the third ink layer, the height difference between the R-corner grooves 4 and the second ink layer provides a space for air to be trapped during subsequent bonding.

[0030] After printing the three layers of ink, the OCA adhesive is applied. During the bonding process, when the OCA adhesive comes into contact with the third ink layer, air is squeezed out due to the height difference and interface difference between the two. At this time, the air guide groove 5 guides and gathers the squeezed air to the R-corner groove 4. The special shape and spatial design of the R-corner groove 4 effectively collects this air, preventing air bubbles from forming in the visible area, thus achieving a good de-bubbling effect and ensuring the quality and performance of the touch screen.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ink printing bubble removal mechanism, comprising a first ink printing stencil (1) and a second ink printing stencil (2), wherein the first ink printing stencil (1) is used to print a first ink layer on a touch screen cover, and the second ink printing stencil (2) is used to print a second ink layer, characterized in that, A third ink printing steel mesh (3) is provided on the second ink printing steel mesh (2). The third ink printing steel mesh (3) is used to print the third ink layer of the touch screen cover. R-corner grooves (4) extend from the four corners of the third ink printing steel mesh (3). There is a height difference between the R-corner grooves (4) and the second ink layer. The R-corner grooves (4) are used to collect the displaced air.

2. The ink printing bubble removal mechanism according to claim 1, characterized in that, The R-corner groove (4) is provided with gas guide grooves (5) at equal intervals around its perimeter. The gas guide grooves (5) are used to gather gas into the R-corner groove (4).

3. The ink printing bubble removal mechanism according to claim 1, characterized in that, The R-angle groove (4) is connected to the air guide groove (5).

4. The ink printing bubble removal mechanism according to claim 1, characterized in that, The first ink layer produced by the first layer of ink printing steel mesh (1) is printed on the inside of the outer glass (6).

5. The ink printing bubble removal mechanism according to claim 4, characterized in that, The second layer of ink produced by the second layer of ink printing steel mesh (2) is printed on the first ink layer.

6. The ink printing bubble removal mechanism according to claim 1, characterized in that, A black underlayer (7) is provided above the third ink layer produced by the third ink printing steel mesh (3).

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