Breathable printed fabrics and their production process

Abstract

This application relates to a breathable printed fabric and its production process. The production process includes color separation of the pattern to be printed and film preparation; fabrication of a screen and selection of a squeegee; preparation of a film screen; preparation of digital white plastisol; addition of the digital white plastisol to the film screen; and printing the digital white plastisol onto the fabric using a squeegee. During the color separation process, a corresponding grayscale value is selected based on the color distribution of the pattern to be printed to adjust the film. The grayscale value ranges from 20% to 80%. The grayscale value provides a basis for the depth of color in the pattern to be printed, using the solidity and blurriness of the halftone dots to represent the depth of color. Based on the pattern to be printed, a grayscale value corresponding to the color distribution of the pattern is selected within the 20%-80% grayscale range, allowing the film to present an effect that matches the pattern. Combined with digital white plastisol printing, the resulting fabric not only effectively displays the color distribution of the pattern but also achieves a breathable, non-film-forming effect.

Description

Technical Field

[0001] This application relates to the field of digital printing technology, and in particular to breathable printed fabrics and their production processes. Background Technology

[0002] Digital printing technology refers to a printing process that combines screen printing and digital direct-to-garment printing. White ink is scraped onto the fabric to create a white background. The desired pattern is then input into a computer and processed by various graphic design software (Photoshop and Chameleon). Finally, a computer-controlled digital printhead sprays colored ink onto the white fabric to print the desired pattern.

[0003] With the continuous development of digital printing technology, it is increasingly being applied to clothing. For example, digital printing machines are used to create printed patterns on T-shirts, significantly improving their aesthetic appeal. However, digital printing relies on the application of white ink, resulting in fabrics that are not soft enough and have poor breathability and moisture permeability, making them feel stuffy to the wearer.

[0004] To ensure the breathability of clothing, traditional printing techniques typically involve printing only small color blocks or designing numerous perforations in the fabric to reduce the area of ​​the fabric obscured by the printed pattern. This limits the application of digital printing. Therefore, improving the breathability of clothing fabrics without reducing the area covered by the pattern is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a breathable printed fabric and its production process to address the problem that the fabric obtained after printing with white ink is not soft enough, has poor breathability and moisture permeability, and makes the wearer feel that it is not breathable.

[0006] The first aspect of this application provides a production process for breathable printed fabric, comprising the following steps: obtaining a pattern to be printed; separating the colors of the pattern and creating film; creating a screen and selecting a squeegee; fixing the film onto the screen and exposing it to obtain a film screen; preparing digital white paste; adding the digital white paste to the film screen; and printing the digital white paste onto the fabric using a squeegee. During the color separation process, a corresponding grayscale value is selected based on the color distribution of the pattern to be printed to adjust the film. The grayscale value range is 20%-80%. The digital white paste does not form a film after printing on the fabric. The grayscale value range of 20%-80% can accommodate a wide range of fabric and pattern colors. By selecting grayscale values ​​to process the film, a balance can be achieved between fabric breathability and color performance, ensuring both fabric breathability and the effective color rendering of the inks on the fabric.

[0007] In one embodiment, the film includes a base film, a highlight white film, a total white film, and a cover film. The base film is a transparent base, the highlight white film and the total white film can display the pattern to be printed through black and white, and the cover film is used to cover the base film, the highlight white film and the total white film.

[0008] In one embodiment, fabricating the stencil includes selecting the wire mesh, stretching the wire mesh, and coating it with photosensitive emulsion.

[0009] In one embodiment, the mesh count of the stencil is 2000-3000.

[0010] In one embodiment, the scraper has a Shore hardness of 65°-85°.

[0011] In one embodiment, fixing the film to a screen and exposing it to obtain a film screen includes fixing the base film, highlight white film, total white film, and base film to four screens and exposing them to obtain four film screens.

[0012] In one embodiment, printing digital white ink onto the fabric using a squeegee includes: sequentially printing digital white ink onto four film screens using a squeegee, and baking the digital white ink after the last printing.

[0013] In one embodiment, the baking temperature is 140°-160° and the baking time is 170s-190s.

[0014] In one embodiment, the digital white adhesive comprises 30wt%-45wt% of an aqueous acrylic resin copolymer, 20-25wt% of titanium dioxide, 18wt%-33wt% of water, and 12-17wt% of a surfactant. This application modifies the resin and water content in the digital white adhesive by reducing the resin content and increasing the water content, resulting in 30wt%-45wt% of an aqueous acrylic resin copolymer and 18wt%-33wt% of water. This resin and water content allows the digital white adhesive to transition from a non-film-forming state to a water-based, breathable property.

[0015] The second aspect of this application provides a breathable printed fabric, which is prepared using the breathable printed fabric production process described in any of the above embodiments.

[0016] In the above-mentioned breathable printed fabric production process, grayscale value can provide a basis for the depth of color in the pattern to be printed. The solidity and voidness of the halftone dots are used to represent the depth of color. Based on the pattern to be printed, grayscale values ​​corresponding to the color distribution of the pattern to be printed are selected within the grayscale range of 20%-80%, so that the halftone dots of the film can present an effect that matches the pattern to be printed. Combined with digital white ink printing, the fabric produced can not only well represent the color distribution of the pattern to be printed, but also achieve a breathable effect without forming a film. Attached Figure Description

[0017] Figure 1 This is a schematic flowchart illustrating the production process of a breathable printed fabric according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of 10 grayscale levels in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the pattern to be printed and the film in one embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the pattern to be printed and the film in the comparative examples of this application. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] One embodiment of this application provides a breathable printed fabric production process, which is mainly applied to digital inkjet printing, especially suitable for digital inkjet printing of colored fabrics. Digital printing of white fabrics is not within the scope of this application.

[0024] Direct-to-garment (DG) digital printing is a new type of digital textile printing technology. Its key feature is that inks can be directly sprayed onto the fabric, eliminating the steps of ink mixing, screen making, and printing plate stacking required in traditional printing processes. This reduces plate-making costs and time, and improves printing efficiency and quality. DG is a method of directly printing onto sized semi-finished textiles. This method is suitable for using pigment, reactive, disperse, and acid dye inks. The process involves selecting a suitable semi-finished fabric based on the ink type, sizing, drying, and rolling it up, then directly printing it onto the digital equipment, followed by drying, steaming, washing, drying again, and softening / setting processes. DG can also be called digital inkjet printing technology, a new printing technology developed internationally since the 1990s. It uses digital input methods (such as networks, scanners, hard drives, digital cameras, etc.) to input and transmit the patterns designed by the designers to a designated computer. After being edited and processed by a computer-aided design (CAD) system, the computer's dedicated software drives the inkjet head to directly spray special dye (pigment) ink onto various fabrics (such as cotton, linen, silk, wool, and synthetic fibers) or textile products (such as clothing, towels, textiles, leather goods, carpets, etc.) to form patterns. It integrates multiple disciplines such as electronic information, computer science, and mechanics. In the past decade, digital inkjet printing technology for textiles has developed rapidly, the number of inkjet printing machine manufacturers has increased rapidly, and the performance of printing machines has continued to improve.

[0025] In the digital inkjet printing process, white ink is first printed onto the fabric, and then color ink is printed onto the white ink using a digital printhead in a digital direct-to-garment printer, thus obtaining garments with colored printed patterns. Specifically, digital inkjet printing includes the following steps:

[0026] S1. Print the digital processing liquid onto the fabric;

[0027] S2. Digital white adhesive ink is printed onto digital processing liquid using a screen printing plate;

[0028] S3. The colored ink is sprayed onto the digital white paste through the digital printhead.

[0029] However, in S2, the printed digital white ink has a strong adhesive feel and is very stiff. The fabric obtained after printing digital white ink is not soft enough, and its breathability and moisture permeability are poor, making the wearer feel that it is not breathable. In addition, the color performance of the inks sprayed onto the digital white ink needs to be improved.

[0030] One embodiment of this application provides a production process for breathable printed fabric. This production process is applied in the above-mentioned S2. This production process can reduce the glue feel of white ink, thereby improving the breathability of the printed fabric. In the embodiment disclosed in this application, the breathability is reflected by computer color separation software and printing method; at the same time, it is also beneficial to improve the color performance effect after the colored ink is sprayed onto the digital white ink in S3.

[0031] refer to Figure 1 As shown in the embodiments disclosed in this application, the production process of breathable printed fabric includes:

[0032] S10. Obtain the pattern to be printed, separate the colors of the pattern to be printed, and create film.

[0033] During the color separation process, the corresponding grayscale value is selected based on the color distribution of the pattern to be printed in order to adjust the film. Specifically, refer to... Figure 2 As shown, the grayscale value is divided into 10 levels, namely 10%, 20%, 30%, 40%...80%, 90%, 100%. In the embodiment disclosed in this application, the grayscale value is selected in the range of 20%-80%. This setting can ensure the breathability of the printed fabric and improve the color performance of the pattern to be printed.

[0034] The higher the grayscale value, the worse the breathability of the printed fabric; the lower the grayscale value, the better the breathability. Both the color of the printed pattern and the breathability of the fabric are affected by the grayscale value. A higher grayscale value requires more paste, and a lower grayscale value requires less paste. A grayscale value range of 20%-80% can accommodate a wide range of fabric and pattern colors. For example, if the fabric color is light and the printed pattern color is dark, less white paste is needed to cover the fabric color, and the printed pattern can easily appear on the fabric. In this case, a grayscale value of 20% can be selected. For example, if the fabric is dark and the printed pattern is light, the pattern may not be visible on the dark fabric. Therefore, during color separation, the lighter areas of the pattern need to have a correspondingly higher film depth. This will make the lighter tones of the pattern stand out more after the digital white plastisol is printed. In other words, a larger amount of digital white plastisol is used as a base to make the light pattern appear on the dark fabric. In this case, a grayscale value of 80% can be selected. By selecting the grayscale value to process the film, a balance can be achieved between fabric breathability and color performance, ensuring both fabric breathability and the effective color rendering of the inks on the fabric.

[0035] In some embodiments, preferably, the grayscale value is selected within the range of 20%-70%. Although 20%-80% can accommodate a wide range of fabric and pattern colors, fabrics printed with grayscale values ​​above 70% tend to be slightly stiff. Therefore, controlling the grayscale value within the range of 20%-70% can make the printed fabric more breathable.

[0036] Changing the selected grayscale value will change the film. After selecting a suitable grayscale value based on the color distribution of the pattern to be printed, the film can be prepared. It can be understood that the film is a tool for representing the pattern to be printed, and the grayscale value is a parameter that provides a basis for the color distribution of the pattern in the film.

[0037] In color separation software (such as Photoshop), the image to be printed is separated into colors. Simultaneously, the film needs to be converted from solid color to halftone in the software to improve the breathability of the digital white ink. For digital printing technology, the entire image to be printed is composed of numerous tiny color dots. By selecting grayscale values, lighter areas of the color dots on the image correspond to denser and more blurred halftone dots on the film, while darker areas correspond to sparser and more blurred halftone dots on the film. This allows for less ink to be applied to lighter areas and more ink to be applied to darker areas. Grayscale values ​​provide a basis for the depth of color in the image to be printed, using the density of the halftone dots to represent the depth of color. Based on the image to be printed, grayscale values ​​within the 20%-80% grayscale range are selected to correspond to the color distribution of the image, ensuring that the halftone dots on the film match the image.

[0038] Furthermore, the film includes a base film, a highlight white film, a total white film, and a cover film. The base film is used for transparent underprinting, serving as a base layer. Both the highlight white film and the total white film are obtained through color separation, allowing the printed pattern to be displayed through black and white. To achieve different printing effects, this application sets up layers of film. The highlight white film combined with digital white ink can bring out the printing effect of the printed pattern. The printed pattern needs to be displayed on a colored fabric. In order for the color to be displayed on the fabric, a masking material is needed. The total white film combined with digital white ink serves to mask the fabric color, allowing the color of the printed pattern to be displayed well on the fabric. The cover film is used to cover the base film, highlight white film, and total white film. The cover film is placed on top of the base film, highlight white film, and total white film, which allows the printed pattern to be stably printed on the film, while also ensuring the adhesion and stability of each layer of film.

[0039] If you only use the total white film and not the highlight white film between the base film and the cover film, then you'll be missing the layer of digital white paste for the highlight white film. This layer of digital white paste for the total white film must be very thick, because if it's too thin, it won't cover the fabric color, causing the printed pattern to not show up on the fabric. However, making the total white film layer too thick will greatly affect the breathability of the digital white paste, and the feel will be very stiff. By printing the corresponding layers of digital white paste—the highlight white film and the total white film—onto the fabric, you can reduce the thickness of the digital white paste layer to improve the fabric's breathability, while still allowing the printed pattern to show up on the fabric.

[0040] S20 involves making a screen and selecting a scraper. S20 specifically includes S21 and S22.

[0041] S21. Fabricating the stencil, specifically including:

[0042] S211. Select the screen: the mesh count of the screen for the base film, high-gloss white film and total white film should be 2000-3000 mesh, and the mesh count of the screen for the cover film should be 800-1600 mesh.

[0043] S212. Wire mesh stretching: The wire mesh is stretched manually or by machine. After the wire mesh is stretched taut on the aluminum alloy frame, adhesive is applied to bond the wire mesh to the aluminum alloy frame. After the adhesive is completely dry, the stretching machine is loosened to release the tension of the wire mesh. Excess wire mesh around the frame is cut off, and then the wire mesh is rinsed with detergent and water and dried before use.

[0044] S213. Apply the photosensitive emulsion evenly to the screen.

[0045] It is understood that in the embodiments disclosed in this application, four screens need to be prepared, which correspond to the base film, the highlight white film, the total white film and the cover film respectively.

[0046] S22. Select a squeegee with a Shore hardness of 65°-85°. If the screen density increases, the squeegee hardness must also be increased to increase the printing pressure, allowing the digital white ink to be printed from the high-density screen onto the fabric. In the embodiments disclosed in this application, the squeegee is driven by air pressure to scrape the digital white ink. The air pressure can include multiple levels to adjust the squeegee's cutting speed. Driving the squeegee by air pressure controls the cutting force. Insufficient squeegee force can lead to uneven ink distribution, while excessive force can cause the digital white ink to seep into recessed areas of the fabric, making it difficult to achieve the richness and three-dimensional effect of the printed pattern later.

[0047] S30. Exposure: Fix the film onto the screen and expose it to obtain the film screen. Place the film tightly against the screen coated with photosensitive emulsion and expose it. The distance between the lamp and the screen can be 40-60cm, and the exposure time can be 5-7min. After exposure, wet it with room temperature water, and after 3-6 minutes, rinse it with a high-pressure water gun until the image is clear.

[0048] Specifically, the base film, highlight white film, total white film, and base film are fixed onto four screens, exposed, and developed to obtain four film screens, namely the base film screen, highlight white film screen, and total white film screen.

[0049] Film is composed of black and white. When the film is exposed, the black areas cover the photosensitive emulsion on the screen, preventing light from reaching it. Light, however, can pass through the white areas of the film and reach the photosensitive emulsion, which hardens on the screen. During screen washing, the unexposed emulsion dissolves in water, revealing the image in the dissolved areas. Similarly, digital white paste is applied to the areas on the screen where the image will appear, and the hardened areas of the photosensitive emulsion prevent the paste from transferring onto the fabric.

[0050] S40. Prepare digital white paste by adding it to the film screen and printing it onto the fabric using a squeegee. S40 specifically includes S41 and S42.

[0051] Digital white ink is used as a base color for printing ink and displaying colors. The digital white ink of this application can achieve a soft feel, bright colors after inkjet printing, no ink smudging or spreading, good wash and rub fastness, strong hiding power, and non-sticky.

[0052] S41. Prepare digital white adhesive, wherein the digital white adhesive comprises 30wt%-45wt% of waterborne acrylic resin copolymer, 20-25wt% of titanium dioxide, 18wt%-33wt% of water and 12-17wt% of surfactant.

[0053] In traditional techniques, a high content of transparent resin is used for priming in order to better fill in the fabric texture, increase the flatness of the print, and improve elasticity and durability. However, the traditional resin content is not conducive to the sizing of the 2000-3000 mesh screen and the improvement of the fabric's breathability as disclosed in the embodiments of this application.

[0054] This application modifies the resin and moisture content in digital white adhesive, specifically by reducing the resin content and increasing the moisture content, corresponding to 30wt%-45wt% of water-based acrylic resin copolymer and 18wt%-33wt% of water. At this resin and water content, the phenomenon of digital white adhesive not forming a film (because the digital white adhesive disclosed in this application can adhere to the fabric in a mesh-like manner along the fabric texture) is transformed into the characteristic of water-based breathability. This setting can reduce the sticky feel of digital white adhesive and improve the breathability of digital white adhesive and fabric.

[0055] In the embodiments disclosed in this application, the CASNO (Chemical Abstracts Service registration number for chemical substances) of the waterborne acrylic resin copolymer is 25767-39-9, the CASNO of titanium dioxide is 13463-67-7, the CASNO of water is 7732-18-5, and the CASNO of the surfactant is 68213-23-0.

[0056] S42. Add the prepared digital white paste sequentially to the base film screen, the high-gloss white film screen, the total white film screen, and the cover film.

[0057] S43. The digital white paste is printed sequentially on the four film screens using a squeegee. The printing parameters for the digital white paste on the glossy white film screen, the main white film screen, and the base film screen are 2 times and 2 cuts. The printing parameters for the digital white paste on the base film screen are 2 times and 3 cuts. After the last printing, i.e., the top film screen printing, the digital white paste is baked.

[0058] In some embodiments, the temperature for baking the digital white paste after the last printing is 140°-160°, and the baking time is 170s-190s.

[0059] One embodiment of this application also provides a breathable printed fabric. The breathable printed fabric is prepared using the breathable printed fabric production process described in any embodiment. The fabric includes, but is not limited to, polyester fabric. Among synthetic fibers, polyester products dominate in both quantity and variety. Polyester fibers have high strength and good elasticity, resulting in fabrics that are crisp, retain their shape well, are easy to wash, quick-drying, wrinkle-free, and resistant to moths. Polyester products have consistently enjoyed a long-standing popularity in the market. Polyester fabric is a widely used synthetic fiber clothing fabric in daily life. Its greatest advantages are its excellent wrinkle resistance and shape retention, making it suitable for outerwear, various bags, tents, and other outdoor products.

[0060] The production process of this application is described below using a specific pattern to be printed:

[0061] Example 1:

[0062] S10. Obtain the original manuscript, such as Figure 3 As shown, the original artwork actually displays colors such as pink and red. The original artwork is color-separated, and based on the color distribution of the original artwork, grayscale values ​​corresponding to the colors are selected between 20% and 80% grayscale values ​​to create a base film, a highlight white film, a total white film, and a cover film.

[0063] S20. Prepare a 2500-mesh screen and select a scraper with a hardness of 70°.

[0064] S30, Exposure: Fix four films onto four screens for exposure to obtain four film screens. Place the four films tightly against the screens coated with photosensitive emulsion for exposure. The distance between the lamp and the screens can be 40-60cm, and the exposure time can be 5-7min. After exposure, wet with room temperature water, and after 3-6 minutes, rinse with a high-pressure water gun until the image is clear.

[0065] S40. Prepare digital white adhesive paste, wherein the content of each material in the digital white adhesive paste is: 33wt% water-based acrylic resin copolymer, 22wt% titanium dioxide, 30wt% water, and 15wt% surfactant. Add the digital white adhesive paste to four film screens, and then use a squeegee to sequentially print the digital white adhesive paste from the base film screen, the high-gloss white film screen, the total white film screen, and the cover film screen onto the fabric. After the digital white adhesive paste on the cover film screen is printed, bake the digital white adhesive paste at a temperature of 150°C for 1820 seconds.

[0066] Comparative examples to Example 1:

[0067] S10. Obtain the original manuscript, such as Figure 4 As shown, the original artwork actually displays colors such as pink and red. The original artwork is color-separated without selecting grayscale values ​​during the separation process. Subsequently, a base film, a digital white film, and a cover film are created. It is understood that the digital white film is used for subsequent digital white paste printing. Since this comparative example does not select grayscale values, it lacks the glossy white film and total white film shown in Example 1 of this application.

[0068] S20. Prepare a 2500-mesh screen and select a scraper with a hardness of 70°.

[0069] S30, Exposure: Fix three films onto three screens for exposure to obtain three film screens. Place the three films tightly against the screens coated with photosensitive emulsion for exposure. The distance between the lamp and the screens can be 40-60cm, and the exposure time can be 5-7min. After exposure, wet with room temperature water, and after 3-6 minutes, rinse with a high-pressure water gun until the image is clear.

[0070] S40. Prepare digital white adhesive paste, wherein the content of each material in the digital white adhesive paste is: 33wt% water-based acrylic resin copolymer, 22wt% titanium dioxide, 30wt% water, and 15wt% surfactant. Add the digital white adhesive paste to four film screens, and print the digital white adhesive paste on the base film screen, the digital white film screen, and the cover film screen sequentially onto the fabric using a squeegee. After the digital white adhesive paste on the cover film screen is printed, bake the digital white adhesive paste at a temperature of 150°C for 1820 seconds.

[0071] If the proportioning process doesn't select grayscale values ​​for the color distribution of the original artwork, then the dots on the digital white plastisol screen won't change in sharpness or blurriness. This means the thickness of the printed digital white plastisol will remain constant, which is detrimental to the color reproduction of the original artwork and the improvement of fabric breathability. For example, if the fabric is dark while the original artwork has varying shades of color, the digital white plastisol needs to be applied thicker; otherwise, the lighter colors won't show up on the darker fabric. Based on the proportioning process, the printed digital white plastisol layer will be very thick. While this allows the lighter colors to appear on the darker fabric, it results in poor fabric breathability.

[0072] This application provides the following embodiments regarding the setup for S40, the preparation of digital white adhesive paste:

[0073] Example 2:

[0074] S40. Prepare digital white adhesive paste, wherein the content of each material in the digital white adhesive paste is: 30wt% water-based acrylic resin copolymer, 22wt% titanium dioxide, 33wt% water, and 15wt% surfactant. Add the digital white adhesive paste to four film screens, and then sequentially print the digital white adhesive paste from the base film screen, the digital white film screen, and the cover film screen onto the fabric using a squeegee. The digital white adhesive paste prepared with the above content can also achieve the characteristics of non-film formation and water-based breathability on the fabric.

[0075] Example 3:

[0076] S40. Prepare digital white adhesive paste, wherein the content of each material in the digital white adhesive paste is: 45wt% water-based acrylic resin copolymer, 22wt% titanium dioxide, 18wt% water, and 15wt% surfactant. Add the digital white adhesive paste to four film screens, and then print the digital white adhesive paste on the base film screen, the digital white film screen, and the cover film screen onto the fabric in sequence using a squeegee. The digital white adhesive paste prepared with the above content can also achieve the characteristics of non-film formation and water-based breathability on the fabric. However, the printed fabric feels slightly stiffer and has reduced breathability compared to the fabrics prepared in Examples 1 and 2.

[0077] Example 4:

[0078] S40. Prepare digital white adhesive paste, wherein the content of each material in the digital white adhesive paste is: 50wt% water-based acrylic resin copolymer, 22wt% titanium dioxide, 7wt% water, and 15wt% surfactant. Add the digital white adhesive paste to four film screens, and then print the digital white adhesive paste on the base film screen, the digital white film screen, and the cover film screen onto the fabric in sequence using a squeegee. The digital white adhesive paste prepared with the above content forms a complete film on the fabric, and the printed fabric is noticeably stiffer and less breathable than the fabric prepared in the previous embodiment.

[0079] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A manufacturing process for a breathable printed fabric, characterized in that, Includes the following steps: Obtain the pattern to be printed, separate the colors of the pattern to be printed, and create film; Fabricating the stencil and selecting the scraper; The film is fixed to the screen and exposed to obtain a film screen; and Prepare digital white paste, add the digital white paste to the film screen, and print the digital white paste onto the fabric using a squeegee; In the color separation process, the corresponding gray value is selected based on the color distribution of the pattern to be printed in order to adjust the film. The gray value ranges from 20% to 80%. The digital white paste does not form a film after being printed on the fabric. The film includes a base film, a highlight white film, a total white film, and a cover film. The base film is used for transparent underpainting. The highlight white film and the total white film can reveal the pattern to be printed through black and white. The cover film is used to cover the base film, the highlight white film, and the total white film. The process of fixing the film onto the screen and exposing it to obtain a film screen includes fixing the base film, the highlight white film, the total white film, and the cover film onto four screens respectively and exposing them to obtain four film screens.

2. The production process of the breathable printed fabric according to claim 1, characterized in that, The process of making the screen includes selecting the wire mesh, stretching the wire mesh, and coating it with photosensitive emulsion.

3. The production process for breathable printed fabric according to claim 2, characterized in that, The mesh count of the screen is 2000-3000.

4. The production process of the breathable printed fabric according to claim 1, characterized in that, The scraper has a Shore hardness of 65°-85°.

5. The production process of the breathable printed fabric according to claim 1, characterized in that, Printing the digital white paste onto the fabric using a squeegee includes: sequentially printing the digital white paste onto four film screens using a squeegee, and baking the digital white paste after the last printing.

6. The production process of the breathable printed fabric according to claim 5, characterized in that, The baking time is 170s-190s.

7. The production process for breathable printed fabrics according to any one of claims 1-6, characterized in that, The digital white adhesive comprises 30wt%-45wt% of waterborne acrylic resin copolymer, 20-25wt% of titanium dioxide, 18wt%-33wt% of water, and 12-17wt% of surfactant.

8. A breathable printed fabric, characterized in that, The breathable printed fabric is prepared using the breathable printed fabric production process described in any one of claims 1-7.

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