Textile fabric ink-jet printing and dyeing method, device and equipment and storage medium

Abstract

The invention discloses a textile fabric ink-jet printing and dyeing method, device and equipment and a storage medium, and relates to the technical field of printing and dyeing. According to the method, ink is firstly jet-printed on the side face of a transfer printing cylinder through a spray head module, then the ink is transferred to the textile fabric through the side face of the transfer printing cylinder, the ink is transferred through the transfer printing cylinder instead of being directly jet-printed on the textile fabric, the ink is firstly spread on the transfer printing cylinder, and then the textile fabric is transferred through the transfer printing cylinder. And then the ink is uniformly and deeply transferred to the textile fabric at a constant speed through extrusion of the transfer printing cylinder, so that the problems that the color of the textile fabric is not uniform and the air permeability is poor due to the fact that the ink is attached to the surface due to mechanical errors of movement during direct injection are solved. According to the method, the printing and dyeing process is simple, printing and dyeing of the textile fabric with any breadth, color and length can be achieved, the printed and dyed textile fabric has good air permeability, and the quality and comfort of the textile fabric are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing and dyeing, and in particular to a method, device, equipment and storage medium for inkjet printing and dyeing of textile fabrics. Background Art

[0002] With the rapid economic development and the continuous progress of society, people's aesthetic taste has gradually improved. The clothing that people pursue is no longer just about style and design. They also have higher requirements for textile fabrics of clothing, and the pursuit of clothing quality is getting higher and higher. People value not only the quality of clothing, but also the comfort of wearing it. At present, clothing textile fabrics are generally dyed by the traditional dye vat immersion method. In addition, there is a digital direct injection method to directly spray ink on the textile fabric for dyeing. The above two printing and dyeing methods have some problems that cannot meet the requirements of current textile fabrics. For example, the traditional dye vat immersion method is complicated and requires repeated immersion and drying. It is impossible to produce hundreds or thousands of meters at a time, which is inefficient and cannot be used for color printing and dyeing. The digital direct injection method is prone to uneven color depth and poor air permeability of the printed and dyed textile fabrics. Summary of the invention

[0003] In view of this, the embodiments of the present invention provide a method, device, equipment and storage medium for inkjet printing and dyeing of textile fabrics, so as to solve the problems of low efficiency or poor air permeability in the printing and dyeing of textile fabrics in the prior art.

[0004] In a first aspect, an embodiment of the present invention provides a method for inkjet dyeing of textile fabrics, wherein a transfer roller is placed under a nozzle module, and a textile fabric is placed under the transfer roller, wherein a side of the transfer roller is in contact with the textile fabric, and the method comprises:

[0005] Acquire an image to be printed, and perform screen processing on the image to be printed to obtain printing data;

[0006] Obtaining the rotation direction and rotation speed of the transfer roller;

[0007] Controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed;

[0008] Controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data;

[0009] The transfer roller is controlled to rotate continuously to transfer the transfer image to the textile fabric in contact with the side of the transfer roller.

[0010] Preferably, the textile fabric is controlled to move uniformly along a preset stepping direction at a preset stepping speed, and the obtaining of the rotation direction and rotation speed of the transfer roller comprises:

[0011] Acquire the rotation direction according to the preset stepping direction;

[0012] The rotation speed is obtained according to the preset step speed.

[0013] Preferably, the nozzle module includes a first nozzle unit, a second nozzle unit and a mixing ink bag, wherein the first nozzle unit is used to spray ink into the mixing ink bag to obtain mixed ink according to the printing data; the second nozzle unit is used to spray the mixed ink in the mixing ink bag to the side of the transfer roller.

[0014] Preferably, controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data includes:

[0015] Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the first nozzle unit;

[0016] Control each nozzle or nozzle array in the first nozzle unit to spray corresponding color ink into the mixed ink bag according to its corresponding channel data;

[0017] The second nozzle unit is controlled to spray the mixed ink in the mixed ink bag to the side of the transfer roller to form the transfer image.

[0018] Preferably, controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data includes:

[0019] Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the nozzle module;

[0020] Each nozzle or nozzle array in the nozzle module is controlled to spray corresponding color ink to the side of the transfer roller according to its corresponding channel data to obtain the transfer image.

[0021] Preferably, the step of controlling each nozzle or nozzle array in the nozzle module to spray corresponding color ink to the side of the transfer roller according to the corresponding channel data to obtain the transfer image comprises:

[0022] Obtaining the color printing order corresponding to the pixel points of the image to be printed;

[0023] According to the channel data corresponding to the pixel points, the corresponding nozzles in the third nozzle unit or the nozzles in the nozzle column are controlled to spray the corresponding color inks in sequence to the pixel positions on the side of the transfer roller in the color printing order so that different color inks are superimposed and mixed to obtain a pixel image constituting the transfer image.

[0024] Preferably, before controlling the nozzle module to spray ink to the side of the rotating transfer roller to form a transfer image according to the printing data, the method further includes:

[0025] The printing mode is determined according to the height of the side of the transfer roller and the single scanning height of the nozzle module, wherein the printing mode includes a OnePASS printing mode or a reciprocating scanning printing mode, the height of the side of the transfer roller is the distance between the two bottom surfaces of the transfer roller, and the single scanning height is the maximum image printing height when the nozzle module scans once along the printing direction.

[0026] In a second aspect, an embodiment of the present invention provides an inkjet printing and dyeing device for textile fabrics, the device comprising:

[0027] A printing data acquisition module, used to acquire an image to be printed, and perform screen processing on the image to be printed to obtain printing data;

[0028] A rotation parameter acquisition module, used to acquire the rotation direction and rotation speed of the transfer roller;

[0029] A rotation module, used for controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed;

[0030] A printing module, used for controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data;

[0031] The transfer module is used to control the transfer roller to continuously rotate so as to transfer the transfer image to the textile fabric in contact with the side of the transfer roller.

[0032] In a third aspect, an embodiment of the present invention provides an inkjet printing and dyeing device for textile fabrics, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the method of the first aspect in the above embodiment is implemented.

[0033] In a fourth aspect, an embodiment of the present invention provides a storage medium having computer program instructions stored thereon, which implements the method of the first aspect in the above-mentioned embodiment when the computer program instructions are executed by a processor.

[0034] In summary, the beneficial effects of the present invention are as follows:

[0035] The textile fabric inkjet printing and dyeing method, device, equipment and storage medium provided by the embodiment of the present invention, by first spraying the ink on the side of the transfer roller using a nozzle module, and then transferring the ink to the textile fabric through the side of the transfer roller, because the ink is not directly sprayed on the textile fabric but transferred through the transfer roller, but the ink is first flattened on the transfer roller, and then the ink is evenly and uniformly transferred to the textile fabric through the extrusion of the transfer roller, which solves the problem of uneven color depth of the textile fabric and poor air permeability of the ink attached to the surface caused by the mechanical error of the movement during direct spraying. The printing and dyeing process of the method of the present invention is simple, and can realize the printing and dyeing of textile fabrics of any width, color and length, and the textile fabrics after printing and dyeing have good air permeability, which greatly improves the quality and comfort of the textile fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0037] Figure 1 It is a schematic structural diagram of an inkjet printing and dyeing system according to an embodiment of the present invention.

[0038] Figure 2 The invention is a schematic diagram of the inkjet printing and dyeing method for textile fabrics according to an embodiment of the present invention.

[0039] Figure 3 Schematic diagram of step-by-step motion printing and dyeing of textile fabrics according to an embodiment of the present invention.

[0040] Figure 4 It is a schematic diagram of fixing different printing and dyeing of textile fabrics according to an embodiment of the present invention.

[0041] Figure 5 Schematic diagram of a nozzle module according to an embodiment of the present invention.

[0042] Figure 6 Schematic diagram of a nozzle module according to an embodiment of the present invention.

[0043] Figure 7 It is a schematic diagram of the OnePASS printing mode of an embodiment of the present invention.

[0044] Figure 8 Schematic diagram of the reciprocating scanning printing mode according to an embodiment of the present invention.

[0045] Fig. 9 It is a schematic structural diagram of an inkjet printing and dyeing device for textile fabrics according to an embodiment of the present invention.

[0046] Fig.10 It is a schematic structural diagram of an inkjet printing and dyeing device for textile fabrics according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] Embodiment 1

[0050] The embodiment of the present invention provides a method for inkjet printing and dyeing textile fabrics, which is applicable to the application scenario where ink is sprayed onto a transfer roller using inkjet technology and then the transfer roller transfers the ink onto the textile fabric. Figure 1 The figure is a schematic diagram of an inkjet printing and dyeing system provided by an embodiment of the present invention. A transfer roller 2 is placed below the nozzle module 1. Preferably, the transfer roller 2 is placed directly below the nozzle module 1. The plane where the nozzle of the nozzle module 1 is located is parallel to the horizontal section 21 of the side of the transfer roller and perpendicular to the bottom surface 22, so that the nozzle module sprays ink onto the side 23 of the transfer roller. A flat textile fabric 3 is placed below the transfer roller 2 in contact with the surface. The plane where the textile fabric 3 is located is tangent to the side of the transfer roller 1. When the side area 24 of the transfer roller sprayed with ink contacts the textile fabric as it rotates, the ink on the transfer roller will be transferred to the textile fabric 3.

[0051] See also Figure 2 The inkjet printing and dyeing of textile fabrics according to the embodiment of the present invention specifically comprises the following steps:

[0052] S1: Acquire an image to be printed, and perform screen processing on the image to be printed to obtain printing data;

[0053] S2: Obtaining the rotation direction and rotation speed of the transfer roller;

[0054] S3: controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed;

[0055] S4: controlling the nozzle module to continuously spray ink onto the side of the transfer roller to form a transfer image according to the printing data;

[0056] S5: Control the transfer roller to continuously rotate so as to transfer the transfer image to the textile fabric in contact with the side of the transfer roller.

[0057] Specifically, before the transfer, the image to be transferred to the textile fabric (referred to as the image to be printed) is screened to obtain printing data, and the nozzle module is controlled to spray ink onto the transfer roller according to the printing data to obtain the transfer image. When the transfer roller transfers the transfer image to the textile fabric, its rotation direction and rotation speed need to be determined. The rotation direction and rotation speed of the transfer roller are determined according to different transfer methods. In one embodiment, Figure 3 As shown, the textile fabric 3 is placed on a stepping mechanism 4 such as a guide belt, and steps along a preset stepping direction driven by the stepping mechanism 4. The preset stepping direction here can be as follows: Figure 3 The X direction shown is or the opposite direction of the X direction. Driven by the stepping mechanism, the textile fabric moves at a constant speed along the preset stepping direction at a preset stepping speed, and the transfer roller rotates at a constant speed along its central axis driven by the rotating mechanism. The rotation direction and the rotation speed can be determined according to the preset stepping direction and the preset stepping speed of the textile fabric. Exemplarily, when the preset stepping direction of the textile fabric is the X direction, the rotation direction of the transfer roller is clockwise, and when the preset stepping direction of the textile fabric is the opposite direction of the X direction, the rotation direction of the transfer roller is counterclockwise; preferably, the linear speed of the transfer roller is the same as the preset stepping speed of the textile fabric, so that the transfer roller and the textile fabric move synchronously and at a constant speed. The nozzle module continuously sprays ink onto the side area of ​​the transfer roller to form a continuous transfer image. When the side area printed with the transfer image rotates to a position in contact with the textile fabric, the transfer image is transferred to the textile fabric through the squeezing between the transfer roller and the textile fabric. The side area that leaves the textile fabric along the rotation of the transfer roller rotates to the bottom of the nozzle module again after a certain period of time. Since the image in the side area has been transferred to the textile fabric when it contacts the textile fabric, there is no ink or image in the side area. The nozzle module continues to spray ink to the side area, and the side area contacts the textile fabric again as it rotates to transfer the image.

[0058] As the textile fabric continues to step forward and the transfer roller continues to rotate, the ink that is continuously sprayed onto the side of the transfer roller is flattened on the side of the transfer roller and then is evenly and evenly transferred to the textile fabric through the extrusion when the transfer roller contacts the textile fabric. This transfer method can continuously perform spraying and transfer, thereby achieving the printing and dyeing of hundreds or thousands of meters of textile fabrics with high efficiency.

[0059] In other embodiments, Figure 4 As shown, during the transfer process, the textile fabric 3 is fixed on the transfer platform 5, and the transfer roller 2 moves at a uniform speed in the X direction while rotating, so as to transfer the transfer image to the textile fabric 3. At this time, the nozzle module 1 also needs to move in the same direction and at the same speed as the movement of the transfer roller 2, so as to ensure the printing quality of the transfer image. After completing the transfer of a certain length of textile fabric, the transfer roller is lifted so that it does not contact the textile fabric, and then after moving the textile fabric a certain distance, the textile fabric that has not been printed and dyed is moved under the transfer roller, and then the transfer roller is lowered to contact the textile fabric, and then the nozzle module sprays ink to the transfer roller while the transfer roller rotates and moves at a uniform speed in the opposite direction along the first direction to transfer the transfer image to the textile fabric. This transfer method is less efficient than the above transfer method, and it is necessary to adjust the nozzle module and the transfer roller to move together, and the process is relatively cumbersome.

[0060] In one embodiment, Figure 5 As shown, the nozzle module includes a first nozzle unit 11, a second nozzle unit 12 and a mixed ink bag 13, wherein the first nozzle unit 11 is used to spray ink into the mixed ink bag 13 according to the printing data to obtain mixed ink; the second nozzle unit 12 is used to spray the mixed ink in the mixed ink bag 13 onto the side of the transfer roller 2. In inkjet printing, the four primary colors of ink C (cyan), M (magenta), Y (yellow) and K (black) are generally used for color image printing. Preferably, the first nozzle unit includes four nozzles (respectively recorded as the first C nozzle, the first M nozzle, the first Y nozzle or the first K nozzle) for respectively spraying C ink, M ink, Y ink and K ink, or a nozzle unit is a nozzle including a nozzle column (respectively recorded as the first C nozzle column, the first M nozzle column, the first Y nozzle column and the first K nozzle column) for respectively spraying CMYK four-color inks. The second nozzle unit includes at least one nozzle for spraying mixed ink. Based on Figure 5 The nozzle module shown, preferably, controlling the nozzle module to spray ink to the side of the rotating transfer roller to form a transfer image according to the printing data includes:

[0061] Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the first nozzle unit;

[0062] Control each nozzle or nozzle array in the first nozzle unit to spray corresponding color ink into the mixed ink bag according to its corresponding channel data;

[0063] The second nozzle unit is controlled to spray the mixed ink in the mixed ink bag to the side of the transfer roller to form the transfer image.

[0064] Specifically, the printing data after the screening process generally includes data corresponding to the four color channels of CMYK (recorded as channel data). Accordingly, the first C nozzle or the first C nozzle column in the first nozzle unit is used according to the channel data corresponding to the C color channel, the first M nozzle or the first M nozzle column in the first nozzle unit is used according to the channel data corresponding to the M color channel, the first Y nozzle or the first Y nozzle column in the first nozzle unit is used according to the channel data corresponding to the Y color channel, and the first K nozzle or the first K nozzle column in the first nozzle unit is used according to the channel data corresponding to the K color channel. Each nozzle or nozzle column in the first nozzle unit sprays the corresponding color ink into the mixed ink bag according to its corresponding channel data to obtain mixed ink. The color of the mixed ink changes according to the first nozzle unit spraying different data corresponding ink at different times. The second nozzle unit sprays the continuously changing mixed ink to the side of the transfer roller to form a color transfer image.

[0065] In other embodiments, when the mixed ink is not ejected out of the ink sac by the second nozzle unit in time and has residue, and the first nozzle unit ejects new ink into the ink sac according to the new channel data, the residual ink will mix with the ink newly entering the ink sac, thereby causing color pollution and causing the new mixed ink to differ from the expected mixed ink color. In addition, since the same nozzle is used in the second nozzle unit to eject the mixed ink, when the mixed ink ejected in the front has residue at the nozzle, it will also cause color pollution to the mixed ink ejected later, affecting the printing color. In order to avoid this phenomenon, in one embodiment, the color set to be printed can be obtained from the image to be printed, and the color set is classified according to the color interval. According to the number of color classifications, the corresponding ink pipeline is set in the ink sac and the nozzle for ejecting the color classification ink is set in the second nozzle unit. When the color of the mixed ink obtained after each nozzle or nozzle column in the first nozzle unit ejects ink according to its corresponding channel data belongs to a certain color classification (a certain color interval), the corresponding ink pipeline and nozzle corresponding to the color classification are used for ejection, thereby reducing the color pollution caused by the ink residue and improving the printing quality.

[0066] In one embodiment, Figure 6 As shown, the nozzle module 1 includes four nozzles (respectively recorded as C nozzle, M nozzle, Y nozzle and K nozzle) for respectively spraying C ink, M ink, Y ink and K ink, or the nozzle module 1 is a nozzle including nozzle columns (respectively recorded as C nozzle column, M nozzle column, Y nozzle column and K nozzle column) for respectively spraying CMYK four-color inks. Use these four nozzles or nozzle columns to directly spray ink onto the transfer roller to obtain a transfer image. Based on the above nozzle module, preferably, the control of the nozzle module to spray ink onto the rotating side of the transfer roller to form a transfer image according to the print data includes:

[0067] Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the nozzle module;

[0068] Each nozzle or nozzle array in the nozzle module is controlled to spray corresponding color ink to the side of the transfer roller according to its corresponding channel data to obtain the transfer image.

[0069] Similarly, the printing data after screening processing generally includes data corresponding to the four color channels of CMYK (recorded as channel data). Accordingly, the C head or C nozzle column in the nozzle module is used according to the channel data corresponding to the C color channel, the C head or C nozzle column is used according to the channel data corresponding to the C color channel, the M head or M nozzle column is used according to the channel data corresponding to the M color channel, the Y head or Y nozzle column is used according to the channel data corresponding to the C color channel, and the K head or K nozzle column is used according to the channel data corresponding to the K color channel, so as to spray each color ink onto the transfer roller according to the printing data to form a transfer image.

[0070] It is worth pointing out that when the ink of each color channel is sprayed onto the transfer roller, it is not like conventional inkjet printing where one pixel corresponds to one color ink dot, and the ink dots are not superimposed and mixed, but color vision is generated based on the density of different color ink dots and the visual characteristics of the human eye. In an embodiment of the present invention, when the ink is sprayed on the transfer roller to form a transfer image, the ink of different color channels is mixed and superimposed in a certain order on the side of the transfer roller to obtain the corresponding mixed color. Exemplarily, the color of a certain pixel in the image to be printed is orange-yellow. According to a specific screening algorithm technology, the pixel needs to be composed of a small cyan (C) ink dot, a large yellow (Y) ink dot and a small black (K) ink dot, and the superposition order or color printing order is black-cyan-yellow. Then, when printing, the K nozzle or the corresponding nozzle in the K nozzle column in the nozzle module is controlled to first spray small black ink dots to the corresponding pixel position on the side of the transfer roller, and then the C nozzle or the corresponding nozzle in the C nozzle column in the nozzle module is controlled to spray large cyan ink dots to the pixel position on the side of the transfer roller where small black ink dots have been sprayed, and finally the Y nozzle or the corresponding nozzle in the Y nozzle column in the nozzle module is controlled to spray small yellow ink dots to the pixel position on the side of the transfer roller where small black ink dots and large yellow ink dots have been sprayed. The three colors of ink dots are superimposed and mixed on the pixel position to form a pixel image corresponding to the pixel position, and the color of the pixel image is the same as the corresponding pixel of the original image to be printed, which is orange. All the pixel positions in the image to be printed are controlled to spray each color channel ink to the side of the transfer roller according to the color printing sequence obtained after the specific screening process, and the transfer image is obtained.

[0071] Preferably, before controlling the nozzle module to spray ink to the side of the rotating transfer roller to form a transfer image according to the printing data, the method further includes:

[0072] The printing mode is determined according to the height of the side of the transfer roller and the single scanning height of the nozzle module, wherein the printing mode includes a OnePASS printing mode or a reciprocating scanning printing mode, the height of the side of the transfer roller is the distance between the two bottom surfaces of the transfer roller, and the single scanning height is the maximum image printing height when the nozzle module scans once along the printing direction.

[0073] In one embodiment, Figure 7 As shown, the height H of the side of the transfer roller 2 is determined according to the width K of the textile fabric 3. In order to make the printing and dyeing efficiency of the textile fabric 3 higher and the effect better, preferably, the height H of the side of the transfer roller 2 is greater than or equal to the width K of the textile fabric 3. In other embodiments, when it is not necessary to print and dye the entire width of the textile fabric, a transfer roller with a side height H less than the width K can be selected.

[0074] When the single scan height L of the print head module is greater than or equal to the height H of the side of the transfer roller, the OnePASS printing mode can be used, that is, the arrangement direction of the nozzles in the print head module is in the same direction as the height direction of the side of the transfer roller, and the print head module is fixed differently. The transfer roller rotates continuously driven by the rotating mechanism, and the print head module continuously sprays ink to the side of the transfer roller to form a continuous transfer image. These continuous transfer images are continuously transferred to the textile fabric as the transfer roller rotates. The OnePASS printing mode is highly efficient, but the printing accuracy is determined by the accuracy of the print head module, and it is impossible to print a transfer image with a higher accuracy than the print head module.

[0075] In another embodiment, if the single scanning height of the nozzle module cannot cover the entire side of the transfer roller, a reciprocating scanning method is used to print the transfer image on the side of the transfer roller. Figure 8 As shown, the nozzle arrangement direction R in the nozzle module 1 is perpendicular to the side height direction of the transfer roller 2, and the printing direction D is in the same direction as the side height H. In order to improve the printing efficiency, the nozzle module 1 can be made to reciprocate in the printing direction D while controlling the transfer roller 2 to rotate continuously. This reciprocating scanning printing mode is similar to cylindrical spiral printing. It is necessary to process the printing data before printing so that the image printed on the transfer roller will not be skewed or distorted. Compared with the OnpPASS printing mode, the advantage of using the reciprocating scanning printing mode is that it can improve the printing accuracy. The higher the printing accuracy, the higher the number of reciprocating scans of the unit image area, and the lower the efficiency. Both the OnePASS printing mode and the reciprocating scanning printing mode can realize printing and dyeing of any width. In actual applications, the most suitable printing mode is determined according to the single scanning height of the nozzle module, the height of the side of the transfer roller, the printing accuracy, and so on.

[0076] In summary, the inkjet printing and dyeing method for textile fabrics provided by the embodiment of the present invention is to first spray the ink on the side of the transfer roller using a nozzle module, and then transfer the ink to the textile fabric through the side of the transfer roller. Since the ink is not directly sprayed on the textile fabric but transferred through the transfer roller, the ink is first flattened on the transfer roller, and then the ink is evenly and evenly transferred to the textile fabric through the extrusion of the transfer roller, which solves the problem of uneven color depth of the textile fabric and poor air permeability of the ink attached to the surface caused by the mechanical error of the movement during direct spraying. As the transfer roller continues to rotate, continuous printing and dyeing can be achieved, thereby printing and dyeing hundreds of meters or thousands of meters of textile fabrics. The printing and dyeing process of the method of the present invention is simple, and can realize the printing and dyeing of textile fabrics of any width, color and length, and the textile fabrics after printing and dyeing have good air permeability, which greatly improves the quality and comfort of the textile fabrics.

[0077] Embodiment 2

[0078] See also Fig. 9 The embodiment of the present invention provides a textile fabric inkjet printing and dyeing device 200, the device 200 comprising:

[0079] The printing data acquisition module 201 is used to acquire the image to be printed and perform screen processing on the image to be printed to obtain printing data;

[0080] A rotation parameter acquisition module 202, used to acquire the rotation direction and rotation speed of the transfer roller;

[0081] A rotation module 203, used for controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed;

[0082] The printing module 204 is used to control the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data;

[0083] The transfer module 205 is used to control the transfer roller to continuously rotate so as to transfer the transfer image to the textile fabric in contact with the side surface of the transfer roller.

[0084] Preferably, the rotation parameter acquisition module 202 includes:

[0085] A rotation direction acquisition unit, used to acquire the rotation direction according to the preset stepping direction;

[0086] A rotation speed acquisition unit is used to acquire the rotation speed according to the preset step speed.

[0087] Preferably, the printing module 204 includes:

[0088] A first channel data acquisition unit is used to acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the first nozzle unit;

[0089] A first spray unit, used for controlling each spray head or nozzle array in the first spray head unit to spray corresponding color ink into the mixed ink bag according to corresponding channel data;

[0090] The second spray unit is used to control the second spray head unit to spray the mixed ink in the mixed ink bag to the side of the transfer roller to form the transfer image.

[0091] Preferably, the printing module 204 includes:

[0092] A second channel data acquisition unit is configured to acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the nozzle module;

[0093] The third printing unit is used to control each nozzle or nozzle array in the nozzle module to spray corresponding color ink to the side of the transfer roller according to its corresponding channel data to obtain the transfer image.

[0094] Preferably, the third printing unit comprises:

[0095] A color printing sequence acquisition unit, used to acquire the color printing sequence corresponding to the pixel points of the image to be printed;

[0096] A sequential printing unit is used to control the corresponding nozzles in the third nozzle unit or the nozzles in the nozzle column to spray the corresponding color ink to the pixel position on the side of the transfer roller in the color printing sequence according to the channel data corresponding to the pixel point, so that different color inks are superimposed and mixed to obtain a pixel image constituting the transfer image.

[0097] In summary, the textile fabric inkjet printing and dyeing device provided by the embodiment of the present invention uses a nozzle module to first print the ink on the side of the transfer roller, and then transfers the ink to the textile fabric through the side of the transfer roller. Since the ink is not directly printed on the textile fabric but transferred through the transfer roller, the ink is first flattened on the transfer roller, and then the ink is extruded by the transfer roller to transfer the ink evenly and at a uniform speed to the textile fabric. The problem of uneven color depth on the textile fabric and poor air permeability of the ink attached to the surface caused by the mechanical error of the movement during direct spraying is solved. As the transfer roller continues to rotate, continuous printing and dyeing can be achieved, thereby printing and dyeing hundreds of meters or thousands of meters of textile fabrics. The printing and dyeing process of the method of the present invention is simple, and can realize the printing and dyeing of textile fabrics of any width, color and length, and the textile fabrics after printing and dyeing have good air permeability, which greatly improves the quality and comfort of the textile fabrics.

[0098] Embodiment 3

[0099] In addition, the textile fabric inkjet printing and dyeing method according to the embodiment of the present invention can be implemented by a textile fabric inkjet printing and dyeing device. Fig.10 A schematic diagram of the hardware structure of the inkjet printing and dyeing equipment for textile fabrics provided in an embodiment of the present invention is shown.

[0100] The textile fabric inkjet printing and dyeing device may include a processor 301 and a memory 302 storing computer program instructions.

[0101] Specifically, the processor 301 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiment of the present invention.

[0102] The memory 302 may include a large capacity memory for data or instructions. For example, but not limitation, the memory 302 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 302 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 302 may be inside or outside the data processing device. In a specific embodiment, the memory 302 is a non-volatile solid-state memory. In a specific embodiment, the memory 302 includes a read-only memory (ROM). In appropriate cases, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM) or a flash memory or a combination of two or more of these.

[0103] The processor 301 reads and executes the computer program instructions stored in the memory 302 to implement any one of the textile fabric inkjet printing and dyeing methods in the above embodiments.

[0104] In one example, the textile fabric inkjet printing and dyeing device may further include a communication interface 303 and a bus 310. Fig.10 As shown, the processor 301, the memory 302, and the communication interface 303 are connected via a bus 310 and communicate with each other.

[0105] The communication interface 303 is mainly used to implement the communication between the modules, devices, units and / or equipment in the embodiment of the present invention.

[0106] Bus 310 includes hardware, software or both, and the parts of textile fabric inkjet printing and dyeing equipment are coupled to each other. For example, but not limitation, bus 310 may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 310 may include one or more buses. Although the embodiment of the present invention describes and shows a specific bus, the present invention considers any suitable bus or interconnection.

[0107] Embodiment 4

[0108] In addition, in combination with the inkjet printing and dyeing method for textile fabrics in the above embodiments, the embodiments of the present invention can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor 301, any one of the inkjet printing and dyeing methods for textile fabrics in the above embodiments is implemented.

[0109] In summary, the inkjet printing and dyeing method, device, equipment and storage medium for textile fabrics provided by the embodiments of the present invention first prints the ink on the side of the transfer roller using a nozzle module, and then transfers the ink to the textile fabric through the side of the transfer roller. Since the ink is not directly printed on the textile fabric but transferred through the transfer roller, the ink is first flattened on the transfer roller, and then the ink is evenly and evenly transferred to the textile fabric through the extrusion of the transfer roller, which solves the problem of uneven color depth of the textile fabric and poor air permeability of the ink attached to the surface caused by the mechanical error of the movement during direct spraying. As the transfer roller continues to rotate, continuous printing and dyeing can be achieved, thereby printing and dyeing hundreds of meters or thousands of meters of textile fabrics. The printing and dyeing process of the method of the present invention is simple, and can realize the printing and dyeing of textile fabrics of any width, color and length, and the textile fabrics after printing and dyeing have good air permeability, which greatly improves the quality and comfort of the textile fabrics.

[0110] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0111] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0112] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0113] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A method for inkjet printing and dyeing of textile fabrics, characterized in that: The method comprises: Acquire an image to be printed, and perform screen processing on the image to be printed to obtain printing data; Obtaining the rotation direction and rotation speed of the transfer roller; Controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed; Controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data; The transfer roller is controlled to rotate continuously to transfer the transfer image to the textile fabric in contact with the side of the transfer roller.

2. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The nozzle module includes a first nozzle unit, a second nozzle unit and a mixed ink bag, wherein the first nozzle unit is used to spray ink into the mixed ink bag to obtain mixed ink according to the printing data; the second nozzle unit is used to spray the mixed ink in the mixed ink bag to the side of the transfer roller.

3. The inkjet printing and dyeing method for textile fabrics according to claim 2, characterized in that: The step of controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data comprises: Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the first nozzle unit; Control each nozzle or nozzle array in the first nozzle unit to spray corresponding color ink into the mixed ink bag according to its corresponding channel data; The second nozzle unit is controlled to spray the mixed ink in the mixed ink bag to the side of the transfer roller to form the transfer image.

4. The inkjet printing and dyeing method for textile fabrics according to claim 1, characterized in that: The step of controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data comprises: Acquire channel data corresponding to each color channel in the print data, wherein the color channel includes any one, two or more of a C channel, an M channel, a Y channel, and a K channel, and each color channel corresponds to at least one nozzle or a column of nozzles in the nozzle module; Each nozzle or nozzle array in the nozzle module is controlled to spray corresponding color ink to the side of the transfer roller according to its corresponding channel data to obtain the transfer image.

5. The inkjet dyeing method for textile fabrics according to claim 4, characterized in that: The step of controlling each nozzle or nozzle array in the nozzle module to spray corresponding color ink to the side of the transfer roller according to the corresponding channel data to obtain the transfer image comprises: Obtaining the color printing order corresponding to the pixel points of the image to be printed; According to the channel data corresponding to the pixel points, the corresponding nozzles in the third nozzle unit or the nozzles in the nozzle column are controlled to spray the corresponding color inks in sequence to the pixel positions on the side of the transfer roller in the color printing order so that different color inks are superimposed and mixed to obtain a pixel image constituting the transfer image.

6. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: Before the printing data is used to control the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image, the method further includes: The printing mode is determined according to the height of the side of the transfer roller and the single scanning height of the nozzle module, wherein the printing mode includes a OnePASS printing mode or a reciprocating scanning printing mode, the height of the side of the transfer roller is the distance between the two bottom surfaces of the transfer roller, and the single scanning height is the maximum image printing height when the nozzle module scans once along the printing direction.

7. An inkjet printing and dyeing device for textile fabrics, characterized in that: The device comprises: A printing data acquisition module, used to acquire an image to be printed, and perform screen processing on the image to be printed to obtain printing data; A rotation parameter acquisition module, used to acquire the rotation direction and rotation speed of the transfer roller; A rotation module, used for controlling the transfer roller to rotate at a uniform speed along its central axis according to the rotation direction and the rotation speed; A printing module, used for controlling the nozzle module to continuously spray ink to the side of the transfer roller to form a transfer image according to the printing data; The transfer module is used to control the transfer roller to continuously rotate so as to transfer the transfer image to the textile fabric in contact with the side of the transfer roller.

8. An inkjet printing and dyeing device for textile fabrics, characterized in that: include: At least one processor, at least one memory and computer program instructions stored in the memory, when the computer program instructions are executed by the processor, implement the method according to any one of claims 1 to 6.

9. A storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 6 is implemented.

10. An inkjet printing and dyeing system, wherein the inkjet printing and dyeing system uses the method according to claim 1 to print and dye textile fabrics, characterized in that: The inkjet printing and dyeing system includes at least a nozzle module and a transfer roller, wherein the transfer roller is placed below the nozzle module, the nozzle module is used to spray ink onto the side of the transfer roller to form a transfer image, and the transfer roller is used to transfer the transfer image to the textile fabric below the transfer roller and in contact with the transfer roller to complete the printing and dyeing of the textile fabric.

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