A method for creating screen layouts with replaceable characters.

Abstract

This invention relates to the field of screen printing technology and discloses a method for making a screen printing plate with replaceable characters, comprising the following steps: S2a, making a large film; S2b, determining the area to be changed on the large film and cutting out the area; S2c, making a small film that matches the area; S1a, degreasing the screen printing plate; S1b, cleaning the screen printing plate after step S1a; S1c, drying and baking the screen printing plate after step S1b; S2d, coating the screen printing plate after step S1c; S2e, attaching the large film obtained in step S2b to the screen printing plate, and then embedding the small film into the area for exposure and development; S2f, affixing labels and silver tape to the screen printing plate. This invention not only saves the cost of making new film, helping manufacturing companies reduce costs, but also reduces dimensional deviations caused by re-making film and exposing the plate.

Description

Technical Field

[0001] This invention relates to the field of screen printing technology, and specifically to a method for creating a screen printing plate with replaceable characters. Background Technology

[0002] With the development of the vehicle cover industry, people have increasingly higher requirements for covers. Screen printing is one of the most crucial parts of the vehicle cover manufacturing process, hence its growing importance. Traditional screen printing uses a stencil printing method, which typically involves first creating a film that meets the requirements, and then exposing and developing it to create the stencil.

[0003] While traditional screen printing methods can meet the requirements, the printed content for many products is not static. Different batches of glass have different characters, and sometimes only a small part of the design needs to be updated. However, traditional screen printing can only print the same character at a time. This means that different batches of products need to have their films constantly updated to produce different screens to meet the requirements. Furthermore, since film is charged by area, it is possible that a whole sheet of film needs to be purchased again for a small change, increasing costs. In addition, traditional screen printing methods are prone to dimensional deviations during the film exposure and reprocessing process. Summary of the Invention

[0004] One of the technical problems this application aims to solve is that traditional screen printing cannot arbitrarily replace certain characters, resulting in high printing costs.

[0005] To address the shortcomings of existing technologies, this invention provides a method for creating screen layouts with replaceable characters.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for creating a screen layout with replaceable characters, comprising the following steps:

[0008] S1a, degreasing the screen printing plate;

[0009] S1b, Clean the screen after step S1a;

[0010] S1c, the screen after step S1b is dried and baked;

[0011] It also includes the following steps:

[0012] S2a, create a large film;

[0013] S2b, determine the area that needs to be changed on the large film and cut out the area;

[0014] S2c, creating a small film that matches the area;

[0015] S2d, Coating the screen after step S1c;

[0016] S2e, the large film obtained in step S2b is attached to the screen, and then the small film is embedded into the area for exposure and development.

[0017] S2f, attach labels and Silver Dragon tape to the screen.

[0018] In some embodiments, in step S2c, the small film has the same shape and size as the region.

[0019] In some embodiments, the region is rectangular in shape.

[0020] In some embodiments, in step S1a, both the front and the rear sides of the screen are degreased.

[0021] In some embodiments, steps S1a, S1b, and S1c are located between steps S2c and S2d.

[0022] In some embodiments, in step S2e, the large film obtained in step S2b is pasted at the center position of the screen.

[0023] In some embodiments, in step S1c, the baking operation is carried out in an oven at a temperature of 40–50°C for a time of 28–32 minutes.

[0024] In some embodiments, in step S1c, the baking temperature is 45°C and the baking time is 30 minutes.

[0025] In some embodiments, the coating process in step S2d is as follows: the photosensitive emulsion is poured into the coating applicator, and then coated three times starting from the ink side of the screen. Then the screen is turned over and coated three times on the printing side of the screen, and then coated twice on the ink side of the screen. Finally, the screen is placed in an oven to dry for 15 minutes.

[0026] In some embodiments, after step S2e and before step S2f, the screen is checked for damage and whether the mesh is clogged. If the screen is damaged or the mesh is clogged, the screen is repaired and then a second exposure and development process is performed. If the screen is not damaged or the mesh is clogged, step S2f is performed directly.

[0027] Through the above technical solution, the present invention can not only save the cost of producing new film and help manufacturing enterprises reduce costs, but also reduce the dimensional deviation caused by reproducing film and exposing plates. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the large film in an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the layout of the small film in an embodiment of the present invention. Detailed Implementation

[0031] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0032] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0033] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0035] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0036] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0037] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0038] This invention addresses some problems existing in the prior art by providing a method for creating screen layouts with replaceable characters. The method includes the following steps:

[0039] S1a, degreasing the screen printing plate;

[0040] S1b, Clean the screen after step S1a;

[0041] S1c, the screen after step S1b is dried and baked;

[0042] It also includes the following steps:

[0043] S2a, create a large film;

[0044] S2b, determine the area that needs to be changed on the large film and cut out the area;

[0045] S2c, creating a small film that matches the area;

[0046] S2d, Coating the screen after step S1c;

[0047] S2e, the large film obtained in step S2b is attached to the screen, and then the small film is embedded into the area for exposure and development.

[0048] S2f, attach labels and Silver Dragon tape to the screen.

[0049] The terms "large" and "small" in the aforementioned "large film" and "small film" are merely used to distinguish the films created in step S2a and step S2c, and do not limit the size of the films created in steps S2a and S2c. In this invention, there is no necessary sequential requirement between steps S1a to S1c and steps S2a to S2c; steps S1a to S1c and steps S2a to S2c can be performed simultaneously.

[0050] In step S2c, multiple small films with different content can be produced simultaneously. In step S2e, a small film that meets the content requirements can be selected according to the needs. When it is necessary to change the characters on the screen, it can be selected from the remaining small films. After the finished screen produced in step S2f is used up, the large film and small films can be removed, laminated, and recycled for reuse.

[0051] Figure 1 This is a schematic diagram of the large film obtained by step S2a. The square area at point A in the diagram is the area that needs to be changed. In actual implementation, the position of this area on the large film can be adjusted appropriately according to the requirements.

[0052] During the exposure and development process, the vacuuming time is 80 seconds, and the exposure time is 180 seconds. The principle of exposure and development in this invention is as follows: When the screen printing plate coated with unexposed photosensitive emulsion is exposed, the black areas of the film (i.e., the images to be printed) can block the light from the exposure machine, while the photosensitive emulsion in the remaining non-image areas is exposed. Therefore, after exposure, the image areas of the photosensitive emulsion on the screen printing plate are not exposed, while the non-image areas are exposed. When soaked in water, the unexposed photosensitive emulsion swells and falls off, leaving the exposed areas on the screen printing plate. Since the bottom of the exposure machine is transparent glass and the other side (top) is a rubber blanket, when the vacuum pump evacuates the exposure frame, the internal air pressure decreases. Under the action of external atmospheric pressure, the rubber blanket presses the film and template towards the glass, making the film and the screen film adhere tightly together. This results in a clearer screen printing image.

[0053] The method for creating screen printing with replaceable characters provided by the present invention will be described below with reference to more specific embodiments.

[0054] Example 1

[0055] The screen printing method for creating replaceable characters provided in this embodiment includes the following steps:

[0056] 1) Create a large film according to the requirements;

[0057] 2) Identify the area that needs to be modified on the large film and cut out the area;

[0058] 3) Create a miniature film at a 1:1 scale to the area, ensuring that the miniature film fits the area perfectly; in other words, the miniature film and the area are identical in shape and size.

[0059] 4) Degrease the screen printing plate;

[0060] 5) Rinse the screen after step 4) with a water gun;

[0061] 6) Use an air gun to dry the screen after step 5), then put it in the oven and bake for 30 minutes at a temperature of 45 degrees Celsius.

[0062] 7) Coating the screen after step 6) is performed as follows: pour photosensitive emulsion into the coating agent, then coat it three times starting from the ink side of the screen. Then turn the screen over and coat it three times on the printing side, then coat it twice on the ink side. Finally, put the screen into the oven to dry for 15 minutes.

[0063] 8) Place the large film obtained in step 2) onto the screen in the center, and then embed the small film into the area for exposure and development.

[0064] 9) Affix a label and Silver Dragon tape to the screen printing plate. The label contains information such as model number, printing number, tension, film thickness, and date.

[0065] For ease of cutting, the area is rectangular in shape. When the area is rectangular, the small film is a rectangle of the same size, such as... Figure 2 As shown, in the production process of small film, the rectangular shape of the small film makes it easier to layout, avoids material waste, and helps to further reduce costs. Figure 2 In the text, B, C, D, E, F, and G represent small films with different characters.

[0066] Example 2

[0067] The screen printing method for creating replaceable characters provided in this embodiment includes the following steps:

[0068] 1) Create a large film according to the requirements;

[0069] 2) Identify the area that needs to be modified on the large film and cut out the area;

[0070] 3) Create a miniature film at a 1:1 scale to the area, ensuring that the miniature film fits the area perfectly; in other words, the miniature film and the area are identical in shape and size.

[0071] 4) Degrease both the front and the rising sides of the screen printing plate;

[0072] 5) Rinse the screen after step 4) with a water gun;

[0073] 6) Use an air gun to dry the screen after step 5), then put it in the oven and bake for 32 minutes at a temperature of 40 degrees Celsius.

[0074] 7) Coat the screen after step 6) to ensure that the photosensitive emulsion is evenly and lightly coated on the screen.

[0075] 8) Place the large film obtained in step 2) onto the screen, and then embed the small film into the area for exposure and development.

[0076] 9) Check whether the screen obtained in the previous step is damaged or whether the mesh is clogged; if the screen is damaged or the mesh is clogged, repair the screen and then perform a second exposure and development process. The parameters of the second exposure and development process are the same as those of the first exposure and development process; if the screen is not damaged or the mesh is clogged, proceed directly to the next step.

[0077] 10) Affix a label and Silver Dragon tape to the screen printing plate. The label contains information such as model number, printing number, tension, film thickness, and date.

[0078] When cleaning the screen with a water gun or drying it with an air gun, the nozzle of the water gun or air gun should be 50-60 cm away from the screen. The water gun or air gun should not be too close to the screen to avoid damaging it. The area removed in step 2) of this embodiment can be circular or elliptical.

[0079] Example 3

[0080] The screen printing method for creating replaceable characters provided in this embodiment includes the following steps:

[0081] 1) Degrease both the front and the rising sides of the screen printing plate;

[0082] 2) Rinse the screen after step 1) with a water gun;

[0083] 3) Use an air gun to dry the screen after step 2), then put it in the oven and bake for 28 minutes at 50 degrees Celsius.

[0084] 4) Create a large film as required;

[0085] 5) Determine the area that needs to be modified on the large film and cut out the area. The shape of the cut-out area can be a regular polygon.

[0086] 6) Create a small film that matches the area, ensuring that the small film fits the area perfectly;

[0087] 7) Coating the screen after step 3) is performed. The specific coating operation is as follows: pour the photosensitive emulsion into the coating agent, then coat it three times starting from the ink side of the screen. Then turn the screen over and coat it three times on the printing side of the screen. Then coat it twice on the ink side of the screen. Then put the screen into the oven to dry for 13 minutes.

[0088] 8) Place the large film obtained in step 5) onto the screen, and then embed the small film into the area for exposure and development.

[0089] 9) Affix a label and Silver Dragon tape to the screen printing plate. The label contains information such as model number, printing number, tension, film thickness, and date.

[0090] The purpose of baking the cleaned screen in this invention is mainly to ensure that the moisture on the screen evaporates. The baking temperature is usually 40-50℃, and the baking time is 28-32 minutes. As the baking temperature increases, the baking time can be appropriately shortened. Since the screen will expand during baking, the baking temperature should not exceed 50℃ to prevent the screen from cracking.

[0091] The screen printing method for replaceable characters provided by this invention involves first cutting out the area to be changed on the film, and then creating a small film for the missing area each time, according to the size of the cut-out area. When a screen printing plate is needed, the corresponding small film is embedded 1:1 into the large film for the cut-out area. This not only saves the cost of creating new film, helping manufacturing companies reduce costs, but also reduces dimensional deviations caused by re-creating film for exposure.

[0092] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0093] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A screen printing method for replacing characters, comprising the steps of: S1a, degreasing the screen printing plate; S1b, cleaning the screen printing plate after the step S1a; S1c, drying and baking the screen printing plate after the step S1b, wherein the baking is performed in an oven at a temperature of 40-50℃ for 28-32 minutes; characterized in that it further comprises the steps of: S2a, making a large film; S2b, determining the area to be changed on the large film and cutting off the area; S2c, making a small film matching the area, wherein the small film has the same shape and size as the area, and the shape of the area is rectangular; S2d, coating the screen printing plate after the step S1c, wherein the coating process comprises pouring the photosensitive glue into a coating device, then coating three times from the ink side of the screen printing plate, followed by reversing the screen printing plate and coating three times from the printing side, and then coating twice from the ink side, and then drying the screen printing plate in an oven for 15 minutes; S2e, pasting the large film made in the step S2b on the screen printing plate, and then embedding the small film into the area for exposure and development; S2f, pasting a label and a silver dragon tape on the screen printing plate.

2. The replaceable character's screen printing method according to claim 1, wherein: In the step S1a, the front and back of the screen printing plate are degreased.

3. The replaceable character's screen printing method according to claim 1, wherein: The steps S1a, S1b and S1c are located between the step S2c and the step S2d.

4. The replaceable character's screen printing method according to claim 1, wherein: In the step S2e, the large film made in the step S2b is pasted on the center of the screen printing plate.

5. The replaceable character's screen printing method according to claim 1, wherein: In the step S1c, the baking temperature is 45℃, and the baking time is 30 minutes.

6. The replaceable character's screen printing method according to claim 1, wherein: After the step S2e and before the step S2f, it is checked whether the screen printing plate is damaged and whether the screen holes are blocked; if the screen printing plate is damaged or the screen holes are blocked, the screen printing plate is repaired, and then the exposure and development process is performed again; If the screen printing plate is not damaged or the screen holes are not blocked, the step S2f is directly performed.

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