WO2024082993A1 - 静电成像转移印花设备、系统和方法 - Google Patents

静电成像转移印花设备、系统和方法 Download PDF

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Publication number
WO2024082993A1
WO2024082993A1 PCT/CN2023/123672 CN2023123672W WO2024082993A1 WO 2024082993 A1 WO2024082993 A1 WO 2024082993A1 CN 2023123672 W CN2023123672 W CN 2023123672W WO 2024082993 A1 WO2024082993 A1 WO 2024082993A1
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WO
WIPO (PCT)
Prior art keywords
roller
transfer
printing
transfer printing
electrostatic imaging
Prior art date
Application number
PCT/CN2023/123672
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English (en)
French (fr)
Inventor
钟博文
Original Assignee
长胜纺织科技发展(上海)有限公司
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Publication of WO2024082993A1 publication Critical patent/WO2024082993A1/zh

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6529—Transporting

Definitions

  • the present disclosure generally relates to the field of textile printing and dyeing equipment, and more particularly to an electrostatic imaging transfer printing device, an electrostatic imaging transfer printing system including the electrostatic imaging transfer printing device, and an electrostatic imaging transfer printing method.
  • Printing is a process of printing patterns on fabrics with dyes or pigments.
  • transfer printing technology has developed rapidly in recent years.
  • the pigment or dye is first printed on a temporary transfer carrier by printing to make a transfer carrier, and then the pigment or dye is transferred to the fabric by pressure or high temperature.
  • the products made by the transfer printing process are characterized by bright colors, delicate layers, realistic patterns, and strong artistry.
  • the transfer printing process has achieved the cross-technical development of applying printing technology to the field of textile printing and dyeing to a certain extent.
  • Digital printing generally has the following characteristics: First, the printing method of digital printing process is fully digital. Digital printing is a fully digital production process from drawings in the computer directly to printed products. There is no need for film and printing plate between the various processes of digital printing process. There is no cumbersome process of traditional printing process, especially no cumbersome plate making process. Secondly, digital printing process can realize variable information printing, that is, the content of digital printed products can be changed at any time according to demand. Taking paper printing as an example, the content printed on the front and back two sheets of paper can be completely different. Therefore, digital printing process has high flexibility and customizability. In terms of imaging method, the main printing methods of digital printing currently include inkjet method, electrostatic method, electrocoagulation method, magnetic recording method, and ion deposition method.
  • One of the purposes of the present disclosure is to solve one or more problems existing in the prior art and to achieve additional advantages.
  • an electrostatic imaging transfer printing device configured to transfer printing of fabrics. Transfer printing based on electrostatic imaging is performed, and the electrostatic imaging transfer printing device has a frame, on which the following are arranged in sequence along the traveling direction of the cloth: a cloth feeding system, the cloth feeding system is configured to introduce the cloth into the electrostatic imaging transfer printing device; a wet treatment device, the wet treatment device is configured to give slurry to the cloth so that the cloth reaches a specified liquid carrying rate; and at least one transfer printing unit, the transfer printing unit includes a transfer device and at least one electrostatic imaging printing color group, the electrostatic imaging printing color group is configured to form a printing pattern based on electrostatic imaging, and the transfer device is configured to transfer the printing pattern formed by the electrostatic imaging printing color group to the cloth via a transfer device; wherein the electrostatic imaging printing color group includes a printing plate roller, and an imaging device and an inking device are arranged in sequence along the rotation direction of the printing plate roller, a photoconductor coating is
  • the printing plate roller is equipped with a first power source for charging the printing plate roller.
  • the transfer device is provided with a second power source for charging the transfer device.
  • the imaging device includes a laser light source or a light emitting diode light source.
  • the inking device includes an ink tank and a developing roller, wherein the ink tank contains a dye, and the developing roller is configured to transfer the dye in the ink tank to the printing plate roller to form a printing pattern.
  • a dye collecting device for collecting excess dye is provided below the developing roller.
  • the electrostatic imaging transfer printing device includes a dye reprocessing device connected to the dye collecting device via a recovery pipe, and the dye reprocessing device is configured to separate and reprocess excess dye collected via the dye collecting device.
  • the electrostatic imaging printing color group includes a plate roller cleaning device for cleaning the plate roller, and the plate roller cleaning device is arranged upstream of the imaging device along the rotation direction of the plate roller.
  • the electrostatic imaging printing color group includes an intermediate roller disposed between the printing plate roller and the transfer device, and the intermediate roller is configured to transfer the printing pattern from the printing plate roller to the transfer device.
  • the intermediate roller is equipped with a third charging device for charging the intermediate roller. power supply.
  • the electrostatic imaging printing color group includes an intermediate roller cleaning device for cleaning the intermediate roller, and the intermediate roller cleaning device is arranged downstream of the transfer device and upstream of the plate roller along the rotation direction of the intermediate roller.
  • the transfer device is equipped with a transfer device cleaning device, and the transfer device cleaning device is configured to clean the transfer device after the printed pattern is transferred from the transfer device to the cloth.
  • the transfer device is configured as an annular blanket belt
  • the transfer device includes a pressure roller and a back pressure roller
  • the cloth and the blanket belt can travel through between the pressure roller and the back pressure roller
  • the pressure roller and the back pressure roller are configured to press the cloth and the blanket belt together so that the printed pattern can be transferred from the blanket belt to the cloth.
  • a pressure device is provided on the pressure roller, and the pressure device is configured to enable the pressure roller to be pressed against the back pressure roller with a predetermined pressure; and/or a pressure device is provided on the back pressure roller, and the pressure device is configured to enable the back pressure roller to be pressed against the pressure roller with a predetermined pressure.
  • the transfer device includes a transmission roller, and the blanket belt is tensioned between the back pressure roller and the transmission roller and can move cyclically under the drive of the back pressure roller and the transmission roller.
  • the driving roller is configured to be movable away from or close to the back pressure roller, so that carpet belts with different lengths can be used.
  • the transfer device includes an embossing roller matched with a corresponding electrostatic imaging printing color group, the electrostatic imaging printing color group and the embossing roller are arranged upstream of the back pressure roller along the movement direction of the blanket belt, and the embossing roller is configured to press the blanket belt against the printing plate roller of the corresponding electrostatic imaging printing color group so that the printed pattern is transferred from the printing plate roller to the blanket belt.
  • a pressure device is provided on the printing plate roller, and the pressure device is configured to enable the printing plate roller to press against the embossing roller with a predetermined pressure; and/or a pressure device is provided on the embossing roller, and the pressure device is configured to enable the embossing roller to press against the printing plate roller with a predetermined pressure.
  • the transfer device includes a transmission embossing roller
  • the blanket belt is tensioned between the back pressure roller and the transmission embossing roller and can move cyclically under the drive of the back pressure roller and the transmission embossing roller.
  • the driving embossing roller is configured to be movable away from or close to the backing roller, so that carpet belts with different lengths can be used.
  • the blanket belt is moved along the direction of movement of the blanket belt around the upstream of the back pressure roller.
  • the driving embossing roller is provided with a plurality of electrostatic imaging printing color groups, and the printing plate rollers of the electrostatic imaging printing color groups can press the blanket belt against the driving embossing roller, so that the printed pattern can be transferred from the printing plate roller to the blanket belt.
  • a pressure device is provided on the plate roller, and the pressure device is configured to enable the plate roller to press against the driving embossing roller with a predetermined pressure.
  • the transfer device includes a carpet tape tension roller configured to adjust the tension of the carpet tape.
  • the transfer device is configured as a transfer rubber roller, and the plate roller of the electrostatic imaging printing color group can be pressed against the transfer rubber roller, so that the printed pattern can be transferred from the plate roller to the transfer rubber roller.
  • a plurality of electrostatic imaging printing color groups are arranged around the transfer rubber roller.
  • the transfer device includes a pressure roller arranged downstream of the printing plate roller along the rotation direction of the transfer rubber roller, the cloth can travel through between the transfer rubber roller and the pressure roller, and the pressure roller is configured to press the cloth against the transfer rubber roller so that the printed pattern is transferred from the transfer rubber roller to the cloth.
  • a rubber coating layer is provided on the surface of the blanket belt, the thickness of the rubber coating layer is 3 mm to 15 mm and/or the surface hardness of the rubber coating layer is 45 to 90 Shore degrees; and/or the circumference of the blanket belt is an integer multiple of the circumference of the printing plate roller.
  • a rubber coating layer or a resin coating layer is provided on the surface of the transfer rubber roller, the coating layer has a thickness of 3 mm to 15 mm and/or a surface hardness of 45 to 90 Shore degrees; and/or the circumference of the transfer rubber roller is an integer multiple of the circumference of the printing plate roller.
  • each transfer printing unit has 4 to 8 electrostatic imaging printing color groups.
  • the cloth transport system includes, in sequence along the traveling direction of the cloth: a cloth cart, a first spreading and dividing roller, a first tension roller, a deviation correction and edge alignment device, a traction device, a second tension roller and a second spreading and dividing roller.
  • the electrostatic imaging transfer printing device has two transfer printing units, and the two transfer printing units are arranged sequentially in the traveling direction of the cloth, so that the front and back sides of the cloth can be transfer printed sequentially via the two transfer printing units.
  • the electrostatic imaging transfer printing device has a first transfer printing unit and a second transfer printing unit, wherein the pressure roller of the first transfer printing unit is configured as the back pressure roller of the second transfer printing unit, and the pressure roller of the second transfer printing unit is configured as the back pressure roller of the first transfer printing unit.
  • the first transfer printing unit and the second transfer printing unit are symmetrically arranged with respect to the cloth, so that the front and back sides of the cloth can be transfer printed simultaneously via the first transfer printing unit and the second transfer printing unit.
  • the electrostatic imaging transfer printing equipment has a first transfer printing unit and a second transfer printing unit, wherein the transfer rubber roller of the first transfer printing unit is configured as a pressure roller of the second transfer printing unit, and the transfer rubber roller of the second transfer printing unit is configured as a pressure roller of the first transfer printing unit, and the first transfer printing unit and the second transfer printing unit are symmetrically arranged with respect to the cloth, so that the front and back sides of the cloth can be transfer printed simultaneously via the first transfer printing unit and the second transfer printing unit.
  • an electrostatic imaging transfer printing system comprising the electrostatic imaging transfer printing device and the color fixing device, the washing device, and the drying and shaping device according to the first aspect of the present disclosure.
  • an electrostatic imaging transfer printing method is provided, which is used to perform electrostatic imaging-based transfer printing on fabric when using the electrostatic imaging transfer printing device according to the first aspect of the present disclosure or when using the electrostatic imaging transfer printing system according to the second aspect of the present disclosure.
  • the method includes the following method steps: introducing the cloth into the electrostatic imaging transfer printing equipment through the cloth feeding system; applying slurry to the cloth through the wet treatment device so that the cloth reaches a specified liquid carrying rate; forming an electrostatic latent image on the printing plate roller, and then adsorbing the dye on the printing plate roller through electrostatic action to form a printing pattern corresponding to the electrostatic latent image on the surface of the printing plate roller; transferring the formed printing pattern from the printing plate roller to the transfer device; transferring the printing pattern from the transfer device to the cloth.
  • the formed printing pattern is transferred from the printing plate roller to the transfer device and/or the formed printing pattern is transferred from the transfer device to the cloth under the combined action of electrostatic force and/or mechanical pressure.
  • the method further includes the following method steps: performing color fixing, water washing and drying and shaping treatments on the transfer printed fabric.
  • FIG1 is a schematic diagram of an electrostatic imaging transfer printing device according to a first embodiment of the present disclosure
  • FIG2 is a schematic diagram of an embodiment of an electrostatic imaging printing color group of an electrostatic imaging transfer printing device according to the present disclosure
  • FIG3 is a schematic diagram of another embodiment of an electrostatic imaging printing color group of an electrostatic imaging transfer printing device according to the present disclosure
  • FIG4 is a schematic diagram of an electrostatic imaging transfer printing device according to a second embodiment of the present disclosure.
  • FIG5 is a schematic diagram of an electrostatic imaging transfer printing device according to a third embodiment of the present disclosure.
  • FIG6 is a schematic diagram of an electrostatic imaging transfer printing device according to a fourth embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of an electrostatic imaging transfer printing device according to a fifth embodiment of the present disclosure.
  • FIG8 is a schematic block diagram of an electrostatic imaging transfer printing system according to one embodiment of the present disclosure.
  • FIG. 9 is a schematic flow chart of an electrostatic imaging transfer printing method according to an embodiment of the present disclosure.
  • spatial relational terms such as “upper”, “lower”, “front”, “back”, “top”, “bottom”, etc. may describe the relationship of one feature to another feature in the drawings. It should be understood that the spatial relational terms include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, when the device in the drawings is turned over, features previously described as being “below” other features may now be described as being “above” the other features. The device may also be otherwise oriented (rotated 90 degrees or in other orientations), and the relative spatial relationships will be interpreted accordingly.
  • the present disclosure relates to an electrostatic imaging transfer printing device.
  • the electrostatic imaging transfer printing device of the present disclosure is used to perform transfer printing on fabrics based on electrostatic imaging.
  • the electrostatic imaging transfer printing device of the present disclosure realizes the application of electrostatic imaging printing technology in cold transfer printing process, thereby further expanding the diversity of textile transfer printing process.
  • FIG. 1 shows an electrostatic imaging transfer printing device 1 according to a first embodiment of the present disclosure.
  • the electrostatic imaging transfer printing device 1 is configured to perform transfer printing based on electrostatic imaging on a cloth 2.
  • the electrostatic imaging transfer printing device 1 has a frame (not shown), on which the following can be arranged in sequence along the traveling direction of the cloth 2: a cloth feeding system 10 for introducing the cloth 2 into the electrostatic imaging transfer printing device 1; a wet treatment device 20, the wet treatment device 20 is used to give the slurry to the cloth 2 so that the cloth 2 reaches a specified liquid carrying rate; and at least one transfer printing unit 30 (one transfer printing unit 30 in FIG. 1).
  • the transfer printing unit 30 may include a transfer device 31 and a plurality of (for example, six) electrostatic imaging printing color groups 32 (for the sake of clarity here, only one electrostatic imaging printing color group 32 is provided with a reference numeral).
  • the electrostatic imaging printing color group 32 is configured to form a printing pattern to be transferred to the cloth 2 based on electrostatic imaging.
  • the transfer device 31 is configured to transfer the printing pattern formed by the electrostatic imaging printing color group 32 to the cloth 2 via a transfer device 311.
  • the cloth feeding system 10 may include, in sequence along the traveling direction of the cloth: a cloth cart 11, a first spreading wire roller 12, a first tension roller 13, a deviation correction and edge alignment device 14, a traction device 15, a second tension roller 16, and a second spreading wire roller 17.
  • the cloth to be transfer printed may be accommodated in the cloth cart 11.
  • the traction device 15 may include a traction motor not shown, which may drive the traction roller of the traction device 15 so as to actively pull the cloth 2 into the electrostatic imaging transfer printing device 1.
  • the first spreading wire roller 12 and the second spreading wire roller 17 are configured to flatten the cloth 2 in the transverse direction.
  • the first tension roller 13 and the second tension roller 16 are configured to adjust the tension of the cloth 2.
  • the deviation correction and edge alignment device 14 is configured to adjust the cloth 2. Positioning of material 2 in the horizontal direction.
  • the cloth 2 After being flattened and wrinkle-free by the second spreading and dividing roller 17, the cloth 2 can proceed through the wet treatment device 20.
  • the slurry is quantitatively applied to the cloth 2 so that the cloth 2 reaches a specified liquid carrying rate to meet the requirements of the transfer printing process, especially the cold transfer printing process.
  • the cloth 2 carrying the specified amount of slurry can proceed through the transfer device 31 of the transfer printing unit 30 and complete the transfer printing, especially the cold transfer printing, through the transfer device 31.
  • the cloth 2 can be output from the electrostatic imaging transfer printing device 1, for example, as a transfer-printed cloth 2'.
  • the transfer-printed cloth 2' can eventually become a transfer-printed cloth product after, for example, color fixing, washing, and drying and shaping.
  • the transfer printing unit 30 according to the present disclosure, in particular the structure and working principle of the electrostatic imaging printing color group 32, is described exemplarily with reference to Figures 2 and 3.
  • Figures 2 and 3 only one electrostatic imaging printing color group 32 and only some components of the transfer device 31 are shown.
  • Fig. 2 shows a schematic diagram of a transfer printing unit 30 of an electrostatic imaging transfer printing device 1 according to the present disclosure.
  • the electrostatic imaging printing color group 32 may include a printing plate roller 321 and a first power supply 324, an imaging device 322, an inking device 323 and a printing plate roller cleaning device 325 arranged in sequence along the rotation direction of the printing plate roller 321 (in Fig. 2, the printing plate roller 321 rotates counterclockwise).
  • a photoconductor coating is coated on the plate roller 321, and the first power source 324 is configured to charge the plate roller 321. Due to the insulating properties of the photoconductor in the dark, the charge applied by the first power source 324 can be maintained on the photoconductor coating of the plate roller 321. Subsequently, the plate roller 321 having the photoconductor coating carrying a certain amount of charge can be rotated through the imaging device 322. The imaging device 322 can expose the photoconductor coating of the plate roller 321 according to the desired printing pattern transferred to the cloth 2 as needed.
  • the charge in the light-irradiated area of the photoconductor coating is released, while the charge in the non-light-irradiated area of the photoconductor coating is retained, thereby forming an electrostatic latent image corresponding to the desired printing pattern on the photoconductor coating of the plate roller 321.
  • the plate roller 321 with the electrostatic latent image formed on the photoconductor coating can be further rotated through the inking device 323.
  • the dye can be adsorbed on the photoconductor coating of the plate roller 321 due to the effect of electrostatics, thereby forming a visible printing pattern corresponding to the electrostatic latent image.
  • the plate roller 321 with the printing pattern on the surface can be further rotated through the transfer device 311, and the printing pattern can be transferred from the plate roller 321 to the transfer device 311 under the action of electrostatic force and/or mechanical pressure.
  • the plate roller 321 can be further rotated through the plate roller cleaning device 325 to remove the dye and charge remaining on the plate roller 321, so that the plate roller 321 can be put into the next use cycle and avoid the remaining dye and charge on the plate roller 321.
  • the dye and charge on the printing plate roller 321 affect the electrostatic imaging effect of the next printing pattern, ensuring the production quality of electrostatic imaging transfer printing.
  • the photoconductor coating of the plate cylinder 321 may include an organic photoconductor material or an inorganic photoconductor material (eg, cadmium sulfide, cadmium selenide, or ⁇ -crystalline silicon, etc.).
  • an organic photoconductor material e.g, cadmium sulfide, cadmium selenide, or ⁇ -crystalline silicon, etc.
  • the imaging device 322 may include a laser light source or a light emitting diode light source.
  • the inking device 323 may include an ink tank and a developing roller.
  • the ink tank may contain a dye in the form of toner or ink
  • the developing roller may be configured to transfer the dye in the ink tank to the printing plate roller to form a visible printed pattern.
  • the developing roller may be configured as a magnetic roller or a non-magnetic roller.
  • a dye collecting device for collecting excess dye may be provided below the developing roller.
  • a finishing device may be provided between the inking device 323 and the transfer device 311 along the rotation direction of the plate roller 321.
  • the finishing device may be configured to remove excess dye on the surface of the plate roller 321 (e.g., by means of mechanical pressure and/or electrostatic force), so that the printed pattern is clear and the non-printed pattern area is clean and free of residual dye. This can further improve the accuracy and quality of transfer printing.
  • a dye collecting device for collecting excess dye may also be provided below the finishing device.
  • the electrostatic imaging transfer printing device 1 may include a dye reprocessing device connected to the dye collecting device via a recovery pipeline, and the dye reprocessing device is configured to separate and reprocess the excess dye collected by the dye collecting device.
  • the reprocessed dye can be reused.
  • the first power source 324 can charge the plate roller 321 so that the photoconductor coated on the surface of the plate roller 321 is uniformly charged with a certain amount of negative charge. Subsequently, after exposure via the imaging device 322, a negatively charged electrostatic latent image can be formed on the surface of the plate roller 321.
  • the plate roller can be rotated through the inking device 323, for example, an uncharged dye can be adsorbed in the area on the surface of the plate roller 321 where the electrostatic latent image is formed, so that the originally uncharged dye can have a certain negative charge and form a visible printing pattern corresponding to the electrostatic latent image on the surface of the plate roller 321.
  • the plate roller 321 can further rotate through the transfer device 311, where a second device for charging the transfer device 311 can be provided.
  • the power source 312 and the second power source 312 can, for example, charge the transfer device 311 so that the transfer device has a positive potential, so that the negatively charged printing pattern can be transferred from the plate roller 321 to the transfer device 311 at least under the action of electrostatic force.
  • the plate roller 321 can further rotate through the plate roller cleaning device 325.
  • the plate roller cleaning device 325 can include a pre-cleaning lamp and a cleaning station, so that the charge and dye remaining on the plate roller 321 can be removed. The cleaned plate roller 321 can then continue to be used in the next electrostatic imaging process.
  • FIG. 3 shows a schematic diagram of another embodiment of a transfer printing unit 30 of an electrostatic imaging transfer printing device 1 according to the present disclosure.
  • a plate roller 321, a first power source 324, an imaging device 322, an inking device 323, and a plate roller cleaning device 325 can be arranged and operated in a manner similar to FIG. 2 , so no further details are given here.
  • the plate roller 321, the first power source 324, the imaging device 322, the inking device 323, and the plate roller cleaning device 325 in this embodiment reference can be made to the above description of FIG. 2 and the related description. In different embodiments, the same reference numerals may represent the same or functionally identical components.
  • the electrostatic imaging printing color group 32 may also include an intermediate roller 326 disposed between the plate roller 321 and the transfer device 311.
  • the intermediate roller 326 can be closely attached to the plate roller 321 so that the printed pattern is transferred from the plate roller 321 to the intermediate roller 326; on the other hand, the intermediate roller 326 can be closely attached to the transfer device 311 so that the printed pattern is further transferred from the intermediate roller 326 to the transfer device 311.
  • a third power source (not shown) for charging the intermediate roller 326 can also be provided, so that the dye can be better transferred from the plate roller 321 to the intermediate roller 326 and from the intermediate roller 326 to the transfer device 311 by electrostatic action.
  • an intermediate roller cleaning device 327 may be provided, and the intermediate roller cleaning device 327 may be provided downstream of the transfer device 311 along the rotation direction of the intermediate roller 326 (in FIG. 3 , the intermediate roller 326 rotates clockwise), and the intermediate roller cleaning device 327 is configured to clean the intermediate roller 326 after the printed pattern is transferred from the intermediate roller 326 to the transfer device 311, so that the intermediate roller 326 can be put into the next use cycle.
  • the printing plate roller 321 forms a printing pattern with a certain negative charge on the surface after rotating through the imaging device 322 and the inking device 323, for example, in a manner similar to that exemplarily described with the aid of FIG. 2 .
  • the third power supply can charge the intermediate roller 326 so that the intermediate roller 326 has a positive potential, and the positive potential of the intermediate roller 326 can be higher than the negative potential of the printing pattern formed on the surface of the printing plate roller 321.
  • the printing pattern can be transferred from the printing plate roller 321 to the intermediate roller 326 at least under the action of electrostatic force. Since the intermediate roller 326 The positive potential is higher than the negative potential of the printed pattern formed on the surface of the plate roller 321, and the printed pattern can also have a positive potential after being transferred to the intermediate roller 326. Subsequently, the plate roller 321 can further rotate through the plate roller cleaning device 325 for cleaning and put into the next electrostatic imaging cycle, and the intermediate roller 326 with the printed pattern can rotate clockwise and press against the transfer device 311.
  • the second power supply 312 can charge the transfer device 311 so that the transfer device 311 has a negative potential, so that the positively charged printed pattern can be further transferred from the plate roller 321 to the intermediate roller 326 at least under the action of the electrostatic force.
  • the intermediate roller 326 can further rotate through the plate roller cleaning device 325 for cleaning so that the intermediate roller 326 is put into the next use cycle.
  • the transfer device 311 with the printed pattern can further transfer the printed pattern 311 to the cloth 2, which will be described in more detail below.
  • a suitable potential can be applied between the various components of the transfer printing unit 30 (for example, with the aid of a corresponding power supply), thereby promoting the transfer of the dye or the printing pattern from one component to another by means of the electrostatic effect between the various components, for example, from the ink reservoir to the developer roller, and/or from the developer roller to the plate roller 321, and/or from the plate roller 321 to the transfer device 311, and/or from the plate roller 321 to the intermediate roller 326, and/or from the intermediate roller 326 to the transfer device 311, and/or from the transfer device 311 to the fabric 2, etc.
  • the corresponding potentials applied to the various components described in the working principle and workflow of the transfer printing unit 30, especially the electrostatic imaging printing color group 32 according to the present disclosure in combination with FIG. 2 and FIG. 3 are only exemplary. In practice, those skilled in the art can make adjustments according to needs (for example, according to the type of dye used) without departing from the scope of the present disclosure. It should be clear that in the electrostatic imaging transfer printing device 1 according to the present disclosure, the printing pattern is formed at least based on the electrostatic imaging technology.
  • the transfer device 311 can be configured as an endless blanket belt 313, and the transfer device 31 can also include a pressure roller 314, a back pressure roller 315, a transmission roller 316, and a plurality of (for example, six) impression rollers 320 (for the sake of clarity, only one impression roller 320 is provided with a reference numeral here) provided with the corresponding electrostatic imaging printing color group 32.
  • the blanket belt 313 can be tensioned between the back pressure roller 315 and the transmission roller 316 and can be driven by the back pressure roller 315 and the transmission roller 316 to move cyclically.
  • the impression roller 320 can be configured to press the blanket belt 313 against the corresponding printing plate roller 321 or the intermediate roller 326 (if present), so that the printed pattern is transferred from the printing plate roller 321 or the intermediate roller 326 to the blanket belt 313.
  • a pressure device may be provided on the plate roller 321 or the intermediate roller 326 (if any), and the pressure device may be configured to enable the plate roller 321 or the intermediate roller 326 to press against the embossing roller 320 at a predetermined pressure; and/or a pressure device may be provided on the embossing roller 320, and the pressure device may be configured to enable the plate roller 321 or the intermediate roller 326 to press against the embossing roller 320 at a predetermined pressure.
  • the arrangement can be constructed so that the embossing roller 320 can press against the plate roller 321 or the intermediate roller 326 with a predetermined pressure, thereby being able to provide good mechanical pressure to better transfer the printed pattern from the plate roller 321 or the intermediate roller 326 to the blanket belt 313.
  • the pressing roller 314 and the back pressing roller 315 can be arranged downstream of the electrostatic imaging printing color group 32 along the moving direction of the carpet belt 313 (in FIG. 1 , the carpet belt moves clockwise), and the cloth 2 and the carpet belt 313 can pass between the pressing roller 314 and the back pressing roller 315.
  • the pressing roller 314 and the back pressing roller 315 can be configured to press the cloth 2 and the carpet belt 313 together, so that the printed pattern can be transferred from the carpet belt 313 to the cloth 2 between the pressing roller 314 and the back pressing roller 315.
  • a pressure device 317 may be provided on the pressure roller 314.
  • the pressure device 317 may be configured to enable the pressure roller 314 to press against the back pressure roller 314 at a predetermined pressure, so that the cloth 2 and the blanket belt 313 are closely fitted between the pressure roller 314 and the back pressure roller 315, so that the printed pattern is reliably and completely transferred from the blanket belt 313 to the cloth 2.
  • a pressure device may also be provided on the back pressure roller 314, and the pressure device may be configured to enable the back pressure roller 314 to press against the pressure roller 315 at a predetermined pressure.
  • the pressurizing device 317 and/or the pressure applying device may be configured as a motor, a cylinder, or a hydraulic cylinder.
  • the transfer device 31 may further include a blanket belt tension roller 318 for adjusting the tension of the blanket belt 313 and/or a guide roller 319 for guiding the blanket belt 313 and/or a blanket belt centering and correcting device 310 for correcting the lateral positioning deviation of the blanket belt 313, thereby better controlling the movement and positioning of the blanket belt 313, thereby achieving high-precision and non-misaligned transfer printing of the fabric 2.
  • the blanket belt centering and correcting device 310 may be arranged upstream of the electrostatic imaging printing color group 32 along the movement direction of the blanket belt 313, thereby better reducing the deviation of the printed pattern and ensuring the quality of the transfer printing.
  • the transfer device 31 may include a transfer device cleaning device 33.
  • the transfer device cleaning device 33 may be arranged downstream of the pressure roller 314 and the back pressure roller 315 along the moving direction of the blanket belt 313 and upstream of the electrostatic imaging printing color group 32, so that the blanket belt 313 can be cleaned after the printed pattern is transferred from the blanket belt 313 to the cloth 2, so that the blanket belt 313 can be put into the next transfer printing process to avoid the residual dye affecting the transfer printing effect.
  • the transfer device cleaning device 33 may include a spray pipe 331, a brush roller 332, a scraper 333 and a water receiving tray 334 arranged below in sequence along the moving direction of the blanket belt 313.
  • the spray pipe 331 can be used to spray cleaning liquid toward the blanket belt 313, and the attached dye can be brushed off by the brush roller 332, and then the liquid remaining on the blanket belt 313 can be scraped off by the scraper, and the excess liquid can be recovered by the water receiving tray 334 for subsequent treatment.
  • the circulation of the blanket belt 313 can be realized.
  • the recyclable blanket belt 313 as the transfer carrier, the loss of disposable or high-loss transfer paper or transfer film can be avoided, thereby meeting the requirements of low carbon and environmental protection.
  • the driving roller 316 in order to be able to use annular blanket belts 313 of different lengths, is constructed to be able to move away from or close to the back pressure roller 315, so that the distance between the driving roller 316 and the back pressure roller 315 can be adjusted accordingly according to the length of the blanket belt 313 to be used.
  • a rubber coating layer may be provided on the surface of the blanket belt 313.
  • the thickness of the rubber coating layer may be 3 mm to 15 mm.
  • the rubber may be polyurethane rubber, nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene rubber, or ethylene propylene rubber, etc.
  • the surface hardness of the rubber coating layer may be 45 to 90 degrees Shore.
  • the surface structure of the blanket belt 313 may be a smooth surface or an engraved surface, the pattern of the engraved surface may be a rhombus, a circle, a square, or a hexagon, etc., the number of engraved lines may be 20 to 600 lines, and the depth of the engraved pits may be 10 ⁇ m to 100 ⁇ m.
  • the circumference of the blanket belt 313 may be an integer multiple of the circumference of the plate roller 321.
  • FIG. 4 shows an electrostatic imaging transfer printing device 1 according to a second embodiment of the present disclosure.
  • the cloth feeding system 10 and the wet treatment device 20 and the electrostatic imaging printing color group 32 can be constructed and operated in a manner similar to the embodiment according to FIG. 1 , so no further details are given here.
  • the transfer device 311 can also be constructed as an annular blanket belt 313, but instead of the drive roller 316 and multiple embossing rollers 320 in FIG. 1 , only one drive embossing roller 328 is provided in FIG. 4 .
  • the blanket belt 313 can be tensioned between the back pressure roller 315 and the drive embossing roller 328 and can move cyclically under the drive of the back pressure roller 315 and the drive embossing roller 328.
  • the diameter of the drive embossing roller 328 can be much larger than the diameter of the back pressure roller 315.
  • Six electrostatic imaging printing color groups 32 can be arranged around the driving impression roller 328 upstream of the back pressure roller 315 along the moving direction of the blanket belt 313.
  • the printing plate roller 321 or the intermediate roller 326 (if any) of each electrostatic imaging printing color group 32 can press the blanket belt 313 against the driving impression roller 328, so that the printed pattern can be transferred from the printing plate roller 321 or the intermediate roller 326 to the blanket belt 313.
  • a pressure device may be provided on the plate roller 321 or the intermediate roller 326 (if any), and the pressure device is constructed so that the plate roller 321 or the intermediate roller 326 can press against the transmission embossing roller 328 with a predetermined pressure, thereby providing mechanical pressure to better transfer the printed pattern from the plate roller 321 or the intermediate roller 326 to the blanket belt 313.
  • the transmission embossing roller 328 is constructed to be able to move away from or close to the back pressure roller 315, so that the distance between the transmission embossing roller 328 and the back pressure roller 315 can be adjusted accordingly according to the length of the blanket belt 313 to be used.
  • FIG5 shows an electrostatic imaging transfer printing device 1 according to a third embodiment of the present disclosure.
  • the cloth feeding system 10, the wet treatment device 20 and the transfer printing units 30', 30" of the electrostatic imaging transfer printing device 1 can be constructed and operated in a manner similar to the embodiment according to FIG1 , so no further details are given here.
  • the following mainly describes the difference between the embodiment shown in FIG5 and the embodiment shown in FIG1 .
  • the electrostatic imaging transfer printing device 1 can be constructed for double-sided transfer printing of the cloth 2 and therefore has two transfer printing units, namely: a first transfer printing unit 30' and a second transfer printing unit 30".
  • the two transfer printing units can be arranged sequentially in the traveling direction of the cloth 2, so that the front and back sides of the cloth 2 can be transfer printed sequentially via the two transfer printing units. After transfer printing is performed on one side of the cloth 2 by the first transfer printing unit 30', the cloth 2 can be further conveyed to the second transfer printing unit 30", so as to perform transfer printing on the other side of the cloth 2, and then, the cloth 2' after double-sided transfer printing can be exported from the electrostatic imaging transfer printing device 1.
  • the electrostatic imaging transfer printing device 1 may also have, for example, two transfer printing units 30 having a drive embossing roller 328, which are arranged in sequence in the traveling direction of the cloth 2 and shown in the embodiment according to FIG4. It is also conceivable that the electrostatic imaging transfer printing device 1 may have, for example, a transfer printing unit 30 having a drive roller 316 and an embossing roller 315 as shown in the embodiment according to FIG1 and a transfer printing unit 30 having a drive embossing roller 328 as shown in the embodiment according to FIG4, for double-sided transfer printing of the cloth 2.
  • FIG6 shows an electrostatic imaging transfer printing device 1 according to a fourth embodiment of the present disclosure.
  • the cloth feeding system 10 and the wet treatment device 20 and the electrostatic imaging printing color group 32 can be constructed and operated in a manner similar to the embodiment according to FIG1, so no further details are given here.
  • the transfer device 311 can be constructed as a transfer rubber roller 41.
  • the transfer device 31 can include a pressure roller 314 that can be pressed against the transfer rubber roller 41, and the cloth 2 can be turned via the turning guide roller 40 and travel between the transfer rubber roller 31 and the pressure roller 314 after traveling through the wet treatment device 20.
  • a plurality of (for example, six) electrostatic imaging printing color groups 32 can be arranged around the transfer rubber roller 41 upstream of the pressure roller 314 along the moving direction of the transfer rubber roller 41.
  • the plate roller 321 or the intermediate roller 326 (if any) of each electrostatic imaging printing color group 32 can be pressed against the transfer rubber roller 41 so that the printed pattern can be transferred from the plate roller 321 or the intermediate roller 326 to the transfer rubber roller 41.
  • a pressure device may be provided on the plate roller 321 or the intermediate roller 326 (if present), and the pressure device may be configured to cause the plate roller 321 or the intermediate roller 326 to
  • the transfer rubber roller 41 can be pressed with a predetermined pressure, thereby providing mechanical pressure that enables the printed pattern to be better transferred from the printing plate roller 321 or the intermediate roller 326 to the transfer rubber roller 41 .
  • a pressure device 317 may also be provided on the pressure roller 314 and/or the transfer rubber roller 41.
  • the pressure device 317 is configured to allow the pressure roller 314 and the transfer rubber roller 41 to abut against each other at a predetermined pressure, so that the cloth 2 passing between the pressure roller 314 and the transfer rubber roller 41 can be tightly pressed against the transfer rubber roller 41, so that the printed pattern is reliably and completely transferred from the transfer rubber roller 41 to the cloth 2.
  • the pressurizing device 317 and/or the pressure applying device may be configured as a motor, a cylinder, or a hydraulic cylinder.
  • the transfer device 31 may include a transfer device cleaning device 33, which may be arranged downstream of the pressure roller 314 and upstream of the electrostatic imaging printing color group 32 along the movement direction of the transfer rubber roller 41, so that the transfer rubber roller 41 can be cleaned after the printing pattern is transferred from the transfer rubber roller 41 to the cloth 2, so that the transfer rubber roller 41 can be put into the next transfer printing process.
  • the transfer device cleaning device 33 can be constructed similarly to the transfer device cleaning device 33 described with reference to Figure 1. By using the recyclable transfer rubber roller 41 as a transfer carrier, the loss of disposable or high-loss transfer paper or transfer film can be avoided, thereby meeting the low-carbon and environmentally friendly transfer printing production requirements.
  • the surface of the transfer rubber roller 41 may be provided with a rubber coating layer or a resin coating layer, and the coating layer thickness may be 3 mm to 15 mm.
  • the rubber may be polyurethane rubber, nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene rubber, or ethylene propylene rubber, etc.
  • the resin may be a flexible plate resin.
  • the surface hardness of the coating layer may be 45 to 90 degrees Shore.
  • the surface structure of the transfer rubber roller 41 may be a smooth surface or an engraved surface, and the pattern of the engraved surface may be a rhombus, a circle, a square, or a hexagon, etc.
  • the number of engraved lines may be 20 to 600 lines, and the depth of the engraved mesh pit may be 10 ⁇ m to 100 ⁇ m.
  • the circumference of the transfer rubber roller 41 may be an integer multiple of the circumference of the plate roller 321.
  • FIG7 shows an electrostatic imaging transfer printing device 1 according to the fifth embodiment of the present disclosure.
  • the cloth feeding system 10 and the wet processing device 20 of the electrostatic imaging transfer printing device 1 can be constructed and operated in a manner similar to the embodiment according to FIG1
  • the transfer printing units 30', 30" can be constructed and operated in a manner similar to the embodiment according to FIG6 , so no further details are given here.
  • the following mainly describes the difference between the embodiment shown in FIG7 and the embodiment shown in FIG6 . It can be seen that, compared with the embodiment shown in FIG6 , in the embodiment shown in FIG7 , the electrostatic imaging transfer printing device 1 can have a first transfer printing unit 30' and a second transfer printing unit 30".
  • the transfer rubber roller 41 of the first transfer printing unit 30' can be constructed as the pressure roller 314 of the second transfer printing unit 30", and the transfer rubber roller 41 of the second transfer printing unit 30" can be constructed as the first transfer printing unit 30".
  • the first transfer printing unit 30' and the second transfer printing unit 30" can be symmetrically arranged with respect to the cloth 2. That is to say, in the embodiment shown in FIG. 7, the transfer rubber rollers 41 of the first transfer printing unit 30' and the second transfer printing unit 30" can, for example, be pressed against each other with a predetermined pressure under the action of the provided pressure device 317 and complete the transfer of the printing pattern from the transfer rubber roller 41 to the cloth 2.
  • the corresponding pressure rollers 314 can be omitted, the structural space requirement can be reduced, and the manufacturing cost can be reduced.
  • the transfer rubber rollers 41 of the first transfer printing unit 30' and the second transfer printing unit 30" can both carry printed patterns, so that the front and back sides of the fabric 2 can be transferred printed at the same time.
  • the transfer rubber rollers 41 of the first transfer printing unit 30' and the second transfer printing unit 30" can be made to carry a printed pattern, while the other transfer rubber roller 41 does not carry a printed pattern. Therefore, the other transfer rubber roller 41 can be used as a pressure roller 314 as shown in Figure 6 to perform single-sided printing on the fabric 2.
  • the electrostatic imaging transfer printing device 1 may also have two transfer printing units 30 with a transfer rubber roller 41, which are arranged sequentially in the traveling direction of the cloth 2 and shown in the embodiment according to Fig. 6.
  • the front and back sides of the cloth 2 can be transfer printed sequentially via the two transfer printing units 30.
  • the electrostatic imaging transfer printing device 1 has two of the transfer printing units 30 having a drive roller 316 and an embossing roller 315 shown in the embodiment according to Figure 1, the transfer printing unit 30 having a drive embossing roller 328 shown in the embodiment according to Figure 4, and the transfer printing unit 30 having a transfer rubber roller 41 shown in the embodiment according to Figure 6.
  • These two transfer printing units 30 can be arranged sequentially in the traveling direction of the cloth 2 or opposite to each other with respect to the cloth 2 for double-sided transfer printing on the cloth 2.
  • transfer printing unit 30 with 6 electrostatic imaging printing color groups 32 is shown as an example in the description in combination with Figures 1 and 4 to 7, other numbers of electrostatic imaging printing color groups 32, for example 4 to 8 electrostatic imaging printing color groups 32, can also be set in a transfer printing unit 30.
  • FIG8 shows a schematic block diagram of an electrostatic imaging transfer printing system 100 according to an embodiment of the present disclosure.
  • the electrostatic imaging transfer printing system 100 may include an electrostatic imaging transfer printing device 1 according to the present application and a color fixing device 50, a water washing device 60, and a drying and shaping device 70.
  • the fabric 2 with single-sided transfer printing or double-sided transfer printing may be processed by the color fixing device 50 for color fixing, the water washing device 60 for water washing, and the drying and shaping device 70 for drying and shaping to finally become a transfer printing fabric finished product 2".
  • FIG9 shows a schematic flow chart of an electrostatic imaging transfer printing method 200 according to an embodiment of the present disclosure.
  • the electrostatic imaging transfer printing method 200 is used in the electrostatic imaging transfer printing device according to the present disclosure.
  • the fabric 2 is subjected to transfer printing based on electrostatic imaging.
  • the electrostatic imaging transfer printing method 200 may, for example, include the following method steps:
  • Method step 201 introducing the cloth 2 into the electrostatic imaging transfer printing device 1 through the cloth feeding system 10;
  • Method step 202 applying slurry to the cloth 2 through the wet treatment device 20, so that the cloth 2 reaches a specified liquid carrying rate
  • Method step 203 forming an electrostatic latent image on the printing plate roller 321, and then adsorbing the dye on the printing plate roller 321 by electrostatic action, so as to form a printing pattern corresponding to the electrostatic latent image on the surface of the printing plate roller 321;
  • Method step 204 transferring the formed printing pattern from the printing plate roller 321 to the transfer device 311;
  • Method step 205 transferring the printed pattern from the transfer device 311 to the fabric 2;
  • Method step 206 performing a color fixing treatment on the transfer printed fabric 2';
  • Method step 207 washing the fixed fabric
  • method step 208 the washed fabric is dried and shaped, thereby finally obtaining a transfer printed fabric product 2".

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Abstract

一种静电成像转移印花设备（1）、静电成像转移印花系统（100）和静电成像转移印花方法。静电成像转移印花设备（1）构造为用于对布料（2）进行基于静电成像的转移印花并且具有机架，在机架上沿布料（2）的行进方向设置有：输布系统（10）；给湿处理装置（20）；以及至少一个转移印花单元（30），其包括转印装置（31）和至少一个静电成像印刷色组（32），静电成像印刷色组（32）构造为基于静电成像形成印花图样，转印装置（31）构造为经由转印器件（311）将印花图样转移到布料（2）上。静电成像印刷色组（32）包括印版辊筒（321），沿印版辊筒（321）的转动方向依次设置有成像装置（322）和着墨装置（323）。在印版辊筒（321）上涂覆有光导体涂层，成像装置（322）构造成在光导体涂层上形成静电潜像，着墨装置（323）构造成以染剂在印版辊筒（321）表面形成与静电潜像对应的印花图样。

Description

静电成像转移印花设备、系统和方法 技术领域
本公开总体上涉及纺织品印染装备领域。更特别地，本公开涉及一种静电成像转移印花设备、以及包括该静电成像转移印花设备的静电成像转移印花系统和一种静电成像转移印花方法。
背景技术
印花工艺是一种以染料或颜料在布料上施印图样的工艺过程。除了传统的圆网印花和平网印花外，近年来转移印花技术快速发展。在转移印花工艺中，首先用印刷方法将颜料或染料印在转印暂载体上，从而制成转印载体，再通过加压或高温等方式把颜料或染料转移到布料上。通过转移印花工艺制造的产品的特点是颜色鲜艳、层次细腻、花型逼真、艺术性强。转移印花工艺在一定程度上实现了将印刷技术应用于纺织品印染领域的交叉技术发展。
而在印刷行业中，近年来发展最快的是数字印刷。
数字印刷一般具有以下这些特点：首先，数字印刷工艺的印刷方式全数字化，数字印刷是从在计算机中的图纸直接到印刷品的全数字化生产工艺，在数字印刷工艺的各工序之间不需要胶片和印版，没有传统印刷工艺的繁琐工序、特别是无需繁琐的制版工序。其次，数字印刷工艺能实现可变信息印刷，即，可以随时根据需求变化数字印刷品的内容，以纸张打印为例，在前后两张纸张上打印的内容可以完全不同。因此，数字印刷工艺具有高的灵活性和可定制性。以成像方式来看，目前数字印刷的主要印刷方式包括喷墨方式、静电方式、电凝方式、磁记录方式、和离子沉积方式等。
为了不断提升纺织品印染行业的技术水平，可以借鉴先进的印刷技术并将其应用于印花生产。目前，静电成像印刷技术在转移印花工艺、特别是冷转移印花工艺中的应用仍亟待进一步发展和探索。
发明内容
本公开的目的之一是解决现有技术中存在的一个或多个问题，并实现额外的优点。
在本公开的第一方面，提供了一种静电成像转移印花设备，其构造为用于对布料 进行基于静电成像的转移印花，所述静电成像转移印花设备具有机架，在所述机架上沿布料的行进方向依次设置有：输布系统，所述输布系统构造为用于将布料引入到静电成像转移印花设备中；给湿处理装置，所述给湿处理装置构造为用于将浆液给予布料，使得布料达到规定的带液率；以及至少一个转移印花单元，所述转移印花单元包括转印装置以及至少一个静电成像印刷色组，所述静电成像印刷色组构造为用于基于静电成像形成印花图样，所述转印装置构造为用于经由转印器件将通过静电成像印刷色组形成的印花图样转移到布料上；其中，所述静电成像印刷色组包括印版辊筒，沿所述印版辊筒的转动方向依次设置有成像装置和着墨装置，在所述印版辊筒上涂覆有光导体涂层，所述成像装置构造成在所述光导体涂层上形成静电潜像，所述着墨装置构造成以染剂在所述印版辊筒的表面形成与所述静电潜像相对应的印花图样。
根据本公开的一个实施例，所述印版辊筒配设有用于为所述印版辊筒充电的第一电源。
根据本公开的一个实施例，所述转印器件配设有用于为所述转印器件充电的第二电源。
根据本公开的一个实施例，所述成像装置包括激光光源或发光二极管光源。
根据本公开的一个实施例，所述着墨装置包括墨仓和显影辊，在所述墨仓中容纳有染剂，所述显影辊构造为用于将所述墨仓中的染剂转移到所述印版辊筒上以形成印花图样。
根据本公开的一个实施例，在所述显影辊下方设置有用于收集多余的染剂的染剂收集装置。
根据本公开的一个实施例，所述静电成像转移印花设备包括经由回收管道与所述染剂收集装置连接的染剂再处理装置，所述染剂再处理装置构造为用于对经由染剂收集装置收集的多余的染剂进行分离和再处理。
根据本公开的一个实施例，所述静电成像印刷色组包括用于清洁印版辊筒的印版辊筒清洁装置，所述印版辊筒清洁装置沿所述印版辊筒的转动方向设置在所述成像装置的上游。
根据本公开的一个实施例，所述静电成像印刷色组包括设置在所述印版辊筒与所述转印器件之间的中间辊筒，所述中间辊筒构造为将印花图样从印版辊筒转移到转印器件上。
根据本公开的一个实施例，所述中间辊筒配设有用于对所述中间辊筒充电的第三 电源。
根据本公开的一个实施例，所述静电成像印刷色组包括用于清洁中间辊筒的中间辊筒清洁装置，所述中间辊筒清洁装置沿所述中间辊筒的转动方向设置在所述转印器件的下游并且设置在所述印版辊筒的上游。
根据本公开的一个实施例，所述转印器件配设有转印器件清洁装置，所述转印器件清洁装置构造成用于在印花图样从转印器件转移到布料上之后清洁所述转印器件。
根据本公开的一个实施例，所述转印器件构造为环形的毯带，所述转印装置包括压辊和背压辊，布料和所述毯带能在所述压辊与所述背压辊之间行进穿过，并且所述压辊与所述背压辊构造为将布料和所述毯带压靠在一起，使得印花图样能从所述毯带转移到布料上。
根据本公开的一个实施例，在所述压辊上设置有加压装置，所述加压装置构造为使得所述压辊能以预定的压力抵压到所述背压辊上；和/或在所述背压辊上设置有加压装置，所述加压装置构造为使得所述背压辊能以预定的压力抵压到所述压辊上。
根据本公开的一个实施例，所述转印装置包括传动辊，所述毯带张紧在所述背压辊与所述传动辊之间并且能在所述背压辊与所述传动辊的驱动下循环地运动。
根据本公开的一个实施例，所述传动辊构造为能远离或靠近所述背压辊移动，从而能够使用具有不同长度的毯带。
根据本公开的一个实施例，所述转印装置包括与相应的静电成像印刷色组相配设的压印辊，所述静电成像印刷色组和所述压印辊沿所述毯带的运动方向设置在所述背压辊的上游，所述压印辊构造为将所述毯带抵压在相应的静电成像印刷色组的印版辊筒上，使得印花图样从所述印版辊筒转移到所述毯带上。
根据本公开的一个实施例，在所述印版辊筒上设置有施压装置，所述施压装置构造为使得所述印版辊筒能以预定的压力抵压所述压印辊；和/或在所述压印辊上设置有施压装置，所述施压装置构造为使得所述压印辊能以预定的压力抵压所述印版辊筒。
根据本公开的一个实施例，所述转印装置包括传动压印辊，所述毯带张紧在所述背压辊与所述传动压印辊之间并且能在所述背压辊与所述传动压印辊的驱动下循环地运动。
根据本公开的一个实施例，所述传动压印辊构造为能远离或靠近所述背压辊移动，从而能够使用具有不同长度的毯带。
根据本公开的一个实施例，沿所述毯带的运动方向在所述背压辊的上游围绕所述 传动压印辊设置有多个静电成像印刷色组，所述静电成像印刷色组的印版辊筒能将所述毯带抵压在传动压印辊上，使得印花图样能从所述印版辊筒转移到所述毯带上。
根据本公开的一个实施例，在所述印版辊筒上设置有施压装置，所述施压装置构造为使得所述印版辊筒能以预定的压力抵压所述传动压印辊。
根据本公开的一个实施例，所述转印装置包括毯带张力辊，所述毯带张力辊构造为用于调节所述毯带的张力。
根据本公开的一个实施例，所述转印器件构造为转移胶辊，所述静电成像印刷色组的印版辊筒能抵压在所述转移胶辊上，使得印花图样能从所述印版辊筒转移到所述转移胶辊上。
根据本公开的一个实施例，围绕所述转移胶辊设置有多个静电成像印刷色组。
根据本公开的一个实施例，所述转印装置包括沿所述转移胶辊的转动方向设置在所述印版辊筒下游的压辊，布料能在所述转移胶辊与所述压辊之间行进穿过，并且所述压辊构造为将布料压靠在所述转移胶辊上，使得印花图样从所述转移胶辊转移到布料上。
根据本公开的一个实施例，在所述毯带的表面设置有橡胶涂覆层，所述橡胶涂覆层厚度为3mm至15mm和/或所述橡胶涂覆层的表面硬度为邵氏45度至90度；和/或所述毯带的周长为印版辊筒的周长的整数倍。
根据本公开的一个实施例，在所述转移胶辊的表面设置有橡胶涂覆层或树脂涂覆层，所述涂覆层厚度为3mm至15mm和/或所述涂覆层的表面硬度为邵氏45度至90度；和/或所述转移胶辊的周长为印版辊筒的周长的整数倍。
根据本公开的一个实施例，每个转移印花单元具有4至8个静电成像印刷色组。
根据本公开的一个实施例，所述输布系统沿着布料的行进方向依次包括：布车、第一展幅分丝辊、第一张力辊、纠偏对边装置、牵引装置、第二张力辊和第二展幅分丝辊。
根据本公开的一个实施例，所述静电成像转移印花设备具有两个转移印花单元，并且所述两个转移印花单元在布料的行进方向上依次设置，使得能经由所述两个转移印花单元依次对布料的正面和背面进行转移印花。
根据本公开的一个实施例，所述静电成像转移印花设备具有第一转移印花单元和第二转移印花单元，其中，第一转移印花单元的压辊构造为第二转移印花单元的背压辊，并且第二转移印花单元的压辊构造为第一转移印花单元的背压辊，第一转移印花 单元和第二转移印花单元关于布料对称地设置，使得能经由第一转移印花单元和第二转移印花单元同时对布料的正面和背面进行转移印花。
根据本公开的一个实施例，所述静电成像转移印花设备具有第一转移印花单元和第二转移印花单元，其中，第一转移印花单元的转移胶辊构造为第二转移印花单元的压辊，并且第二转移印花单元的转移胶辊构造为第一转移印花单元的压辊，第一转移印花单元和第二转移印花单元关于布料对称地设置，使得能经由第一转移印花单元和第二转移印花单元同时对布料的正面和背面进行转移印花。
在本公开的第二方面，提供了一种静电成像转移印花系统，其中，所述静电成像转移印花系统包括根据本公开的第一方面所述的静电成像转移印花设备和固色设备、水洗设备、以及烘干定型设备。
在本公开的第三方面，提供了一种静电成像转移印花方法，所述方法用于在使用根据本公开的第一方面所述的静电成像转移印花设备的情况下或在使用根据本公开的第二方面所述的静电成像转移印花系统的情况下对布料进行基于静电成像的转移印花。
根据本公开的一个实施例，所述方法包括如下方法步骤：通过输布系统将布料引入到静电成像转移印花设备中；通过给湿处理装置将浆液给予布料，使得布料达到规定的带液率；在印版辊筒上形成静电潜像，随后通过静电作用将染剂吸附在印版辊筒上，以便在所述印版辊筒的表面形成与所述静电潜像相对应的印花图样；将所形成的印花图样从印版辊筒转移到转印器件上；将印花图样从转印器件转移到布料上。
根据本公开的一个实施例，在静电力和/或机械压力的共同作用下将所形成的印花图样从印版辊筒转移到转印器件上和/或将所形成的印花图样从转印器件转移到布料上。
根据本公开的一个实施例，所述方法还包括如下方法步骤：对经转移印花的布料进行固色、水洗和烘干定型处理。
要注意的是，针对一个实施例描述的本公开的各方面可以被包含到其它不同的实施例中，尽管没有针对所述其它不同的实施例进行具体描述。换言之，可以以任何方式和/或组合来组合所有实施例和/或组合任意实施例的特征，只要它们不相互矛盾即可。
附图说明
在结合附图阅读下文的具体实施方式后，将更好地理解本公开的多个方面，在附图中：
图1是根据本公开的第一实施例的静电成像转移印花设备的示意图；
图2是根据本公开的静电成像转移印花设备的静电成像印刷色组的一个实施例的示意图；
图3是根据本公开的静电成像转移印花设备的静电成像印刷色组的另一个实施例的示意图；
图4是根据本公开的第二实施例的静电成像转移印花设备的示意图；
图5是根据本公开的第三实施例的静电成像转移印花设备的示意图；
图6是根据本公开的第四实施例的静电成像转移印花设备的示意图；
图7是根据本公开的第五实施例的静电成像转移印花设备的示意图；
图8是根据本公开的一个实施例的静电成像转移印花系统的示意性框图；
图9是根据本公开的一个实施例的静电成像转移印花方法的示意性流程图。
具体实施方式
以下将参照附图描述本公开，其中的附图示出了本公开的若干实施例。然而应当理解的是，本公开可以以多种不同的方式呈现出来，并不局限于下文描述的实施例；事实上，下文描述的实施例旨在使本公开的公开内容更为完整，并向本领域技术人员充分说明本公开的保护范围。还应当理解的是，本文公开的实施例能够以各种方式进行组合，从而提供更多额外的实施例。
应当理解的是，说明书中的用辞仅用于描述特定的实施例，并不旨在限定本公开。说明书使用的所有术语(包括技术术语和科学术语)除非另外定义，均具有本领域技术人员通常理解的含义。为简明和/或清楚起见，公知的功能或结构可以不再详细说明。
说明书使用的单数形式“一”、“所述”和“该”除非清楚指明，均包含复数形式。说明书使用的用辞“包括”、“包含”和“含有”表示存在所声称的特征，但并不排斥存在一个或多个其它特征。说明书使用的用辞“和/或”包括相关列出项中的一个或多个的任意和全部组合。
在说明书中，称一个元件位于另一元件“上”、“附接”至另一元件、“连接”至另一元件、“联接”至另一元件、或“接触”另一元件等时，该元件可以直接位于另一元件上、附接至另一元件、连接至另一元件、联接至另一元件或接触另一元件，或者可以存在 中间元件。
在说明书中，术语“第一”、“第二”、“第三”等仅用于便于说明而不旨在限定。任何由“第一”、“第二”、“第三”等表示的技术特征均是可互换的。
在说明书中，诸如“上”、“下”、“前”、“后”、“顶”、“底”等的空间关系用辞可以说明一个特征与另一特征在附图中的关系。应当理解的是，空间关系用辞除了包含附图所示的方位之外，还包含装置在使用或操作中的不同方位。例如，在附图中的装置倒转时，原先描述为在其它特征“下方”的特征，此时可以描述为在其它特征的“上方”。装置还可以以其它方式定向(旋转90度或在其它方位)，此时将相应地解释相对空间关系。
本公开涉及一种静电成像转移印花设备。本公开的静电成像转移印花设备用于对布料进行基于静电成像的转移印花。本公开的静电成像转移印花设备实现了静电成像印刷技术在冷转移印花工艺中的应用，从而进一步扩展纺织品转移印花工艺过程的多样性。
图1示出了根据本公开的第一实施例的静电成像转移印花设备1。静电成像转移印花设备1构造为用于对布料2进行基于静电成像的转移印花。静电成像转移印花设备1具有机架(未示出)，在机架上沿布料2的行进方向可以依次设置有：用于将布料2引入到静电成像转移印花设备1中的输布系统10；给湿处理装置20，给湿处理装置20用于将浆液给予布料2，使得布料2达到规定的带液率；以及至少一个转移印花单元30(在图1中为一个转移印花单元30)。转移印花单元30可以包括转印装置31以及多个(比如，六个)静电成像印刷色组32(在这里为了清楚起见，仅一个静电成像印刷色组32配设有附图标记)。静电成像印刷色组32构造为用于基于静电成像形成要转移到布料2上的印花图样。转印装置31构造为用于经由转印器件311将通过静电成像印刷色组32形成的印花图样转移到布料2上。
如图1所示，输布系统10沿着布料的行进方向可以依次包括：布车11、第一展幅分丝辊12、第一张力辊13、纠偏对边装置14、牵引装置15、第二张力辊16、和第二展幅分丝辊17。在此，待进行转移印花的布料可以容纳在布车11中。在根据本公开的一个实施例中，牵引装置15可以包括未示出的牵引电机，牵引电机可以驱动牵引装置15的牵引辊以便主动地将布料2牵引进入静电成像转移印花设备1。第一展幅分丝辊12和第二展幅分丝辊17构造为用于使布料2在横向上展平。第一张力辊13和第二张力辊16构造为用于调整布料2的张力。纠偏对边装置14构造为用于调整布 料2在横向上的定位。
布料2在经过第二展幅分丝辊17展平去皱之后可以行进通过给湿处理装置20。在给湿处理装置20中定量地将浆液给予布料2，使得布料2达到规定的带液率以满足转移印花工艺、特别是冷转移印花工艺的要求。随后，携带有规定量的浆液的布料2可以行进通过转移印花单元30的转印装置31并通过转印装置31完成转移印花、特别是冷转移印花。最后，布料2可以例如作为经转移印花的布料2’从静电成像转移印花设备1输出。在根据本公开的一个实施例中，经转移印花的布料2’可以在经过例如固色、水洗和烘干定型处理后最终成为转移印花布料成品。
接下来，参照图2和图3示例性地描述根据本公开的转移印花单元30、特别是静电成像印刷色组32的构造及其工作原理。在图2和图3中仅示例性地示出一个静电成像印刷色组32以及仅示出转印装置31的部分组件。
图2示出了根据本公开的静电成像转移印花设备1的转移印花单元30的一个实施例的原理性示意图。在根据图2的实施例中，静电成像印刷色组32可以包括印版辊筒321和沿印版辊筒321的转动方向(在图2中，印版辊筒321逆时针转动)依次设置的第一电源324、成像装置322、着墨装置323以及印版辊筒清洁装置325。
在印版辊筒321上涂覆有光导体涂层，第一电源324构造为用于对印版辊筒321进行充电。由于光导体在黑暗中的绝缘特性，通过第一电源324施加的电荷能够保持在印版辊筒321的光导体涂层上。随后，具有携带有一定数量的电荷的光导体涂层的印版辊筒321可以转动经过成像装置322。成像装置322可以根据需要转移到布料2上的所期望的印花图样对印版辊筒321的光导体涂层进行曝光。在此，由于光导体在光照下的导通特性，位于光导体涂层的被光照射的区域中的电荷被释放，而位于光导体涂层的未被光照射的区域中的电荷则被保留下来，从而在印版辊筒321的光导体涂层上形成与所期望的印花图样相对应的静电潜像。然后，在光导体涂层上形成有静电潜像的印版辊筒321可以进一步转动经过着墨装置323。在着墨装置323中，染剂可以由于静电作用而吸附在印版辊筒321的光导体涂层上，从而形成与静电潜像相对应的可见的印花图样。接着，表面上带有印花图样的印版辊筒321可以进一步转动经过转印器件311，并且印花图样可以在静电力和/或机械压力的作用下从印版辊筒321转移到转印器件311上。最后，在印花图样从印版辊筒321转移到转印器件311上后，印版辊筒321可以进一步转动经过印版辊筒清洁装置325，以清除残留在印版辊筒321上的染剂和电荷，使得印版辊筒321能够投入到下一个使用循环中，并且避免残留在 印版辊筒321上的染剂和电荷影响对下一个印花图样的静电成像效果，保证静电成像转移印花生产品质。
在根据本公开的一个实施例中，印版辊筒321的光导体涂层可以包括有机光导体材料或无机光导体材料(例如硫化镉、硒化镉或α晶体硅等)。
在根据本公开的一个实施例中，成像装置322可以包括激光光源或发光二极管光源。
在根据本公开的一个实施例中，着墨装置323可以包括墨仓和显影辊，在墨仓中可以容纳有以色粉或油墨的形式的染剂，显影辊可以构造为用于将在墨仓中的染剂转移到印版辊筒上以形成可见的印花图样。在此，根据所要使用的染剂的成分(例如，可以根据所要使用的染剂是否带有磁性物质)，显影辊可以构造为磁性辊或非磁性辊。
在根据本公开的一个实施例中，在显影辊下方可以设置有用于收集多余的染剂的染剂收集装置。
在根据本公开的一个实施例中，可以沿印版辊筒321的转动方向在着墨装置323与转印器件311之间设置有整理装置。所述整理装置可以构造为用于(例如借助于机械压力和/或静电力)清除在印版辊筒321的表面上的多余的染剂，使得印花图样清晰而非印花图样的区域清洁干净并且没有残留的染剂。由此能够进一步提高转移印花的精度和品质。在根据本公开的一个实施例中，也可以在整理装置的下方设置有用于收集多余的染剂的染剂收集装置。
此外，在根据本公开的一个实施例中，静电成像转移印花设备1可以包括经由回收管道与染剂收集装置连接的染剂再处理装置，所述染剂再处理装置构造为用于对经由染剂收集装置收集的多余的染剂进行分离和再处理。经过再处理的染剂可以再利用。
为了方便理解，下面示例性地给出在图2中所示的静电成像印刷色组32的一种工作流程。在图2所示的实施例中，第一电源324可以对印版辊筒321充电，使得涂覆在印版辊筒321的表面上的光导体均匀地带有一定数量的负电荷。随后，在经由成像装置322进行曝光后，在印版辊筒321的表面上可以形成带负电的静电潜像。然后，印版辊筒可以转动经过着墨装置323，例如不带电的染剂可以吸附在印版辊筒321的表面上的形成有静电潜像的区域中，从而原本不带电的染剂可以带有一定的负电荷并且在印版辊筒321的表面上形成与静电潜像相对应的可见的印花图样。印版辊筒321可以进一步转动经过转印器件311，在此可以设置有用于对转印器件311充电的第二 电源312，第二电源312可以例如对转印器件311充电，使得转印器件带有正电位，从而带负电的印花图样能至少在静电力的作用下从印版辊筒321转移到转印器件311上。最后，印版辊筒321可以进一步转动经过印版辊筒清洁装置325。在图2所示的实施例中，印版辊筒清洁装置325可以包括预清洁灯和清洁站，从而能够清除残留在印版辊筒321上的电荷和染剂。清洁后的印版辊筒321随后能够在下一次静电成像的过程中继续使用。
图3示出了根据本公开的静电成像转移印花设备1的转移印花单元30的另一个实施例的原理性示意图。在图3中，印版辊筒321、第一电源324、成像装置322、着墨装置323以及印版辊筒清洁装置325能以与图2类似的方式设置和运行，因此在此不做过多赘述。关于本实施例中的印版辊筒321、第一电源324、成像装置322、着墨装置323以及印版辊筒清洁装置325的具体细节可以参考上面对于图2的说明以及相关描述。在不同的实施例中，相同的附图标记可以表示相同的或者功能相同的部件。为简明起见，以下主要说明图3所示的实施例与图2所示的实施例的区别。在图3所示的实施例中，静电成像印刷色组32可以还包括设置在印版辊筒321与转印器件311之间的中间辊筒326。一方面，中间辊筒326能紧靠在印版辊筒321上，以便印花图样从印版辊筒321转移到中间辊筒326上；另一方面，中间辊筒326能紧靠在转印器件311上，以便印花图样进一步从中间辊筒326转移到转印器件311上。在此，还可以设置有用于对中间辊筒326充电的第三电源(未示出)，从而以静电作用使得染剂能更好地从印版辊筒321转移到中间辊筒326上以及从中间辊筒326转移到转印器件311上。此外，还可以设置有中间辊筒清洁装置327，中间辊筒清洁装置327可以沿中间辊筒326的转动方向(在图3中，中间辊筒326顺时针转动)设置在转印器件311的下游，并且中间辊筒清洁装置327构造成在印花图样从中间辊筒326转移到转印器件311上之后清洁中间辊筒326，使得中间辊筒326能够投入到下一个使用循环中。
为了方便理解，下面示例性地给出在图3中所示的静电成像印刷色组32的一种可行的工作流程。在图3中所示的实施例中，印版辊筒321例如以类似于借助图2所示例性地描述的方式在转动经过成像装置322和着墨装置323后在表面上形成带有一定的负电荷的印花图样。第三电源可以对中间辊筒326充电，使得中间辊筒326具有正电位，并且中间辊筒326所具有的正电位可以高于形成在印版辊筒321的表面的印花图样的负电位。在印版辊筒321进一步转动并抵压在中间辊筒326上时，印花图样可以至少在静电力的作用下从印版辊筒321转移到中间辊筒326上。由于中间辊筒326 所带的正电位高于形成在印版辊筒321的表面的印花图样的负电位，印花图样在转移到中间辊筒326上之后可以也带有正电位。随后，印版辊筒321可以进一步转动经过印版辊筒清洁装置325以进行清洁并投入到下一次静电成像的循环中，而带有印花图样的中间辊筒326可以顺时针转动并抵压在转印器件311上。在此，第二电源312可以对转印器件311充电，使得转印器件311带有负电位，从而带正电的印花图样可以至少在静电力的作用下进一步从印版辊筒321转移到中间辊筒326上。最后，中间辊筒326可以进一步转动经过印版辊筒清洁装置325以进行清洁，以便中间辊筒326投入到下一个使用循环中。而带有印花图样的转印器件311则可以将印花图样311进一步转移到布料2上，这将在下面更详细地说明。
在此特别有利的是，可以在转移印花单元30的各个组件之间(例如借助于相应的电源)施加合适的电位，从而借助于在各个组件之间的静电作用促使染剂或者说印花图样从一个组件转移到另一个组件上、例如从墨仓转移到显影辊上、和/或从显影辊转移到印版辊筒321上、和/或从印版辊筒321转移到转印器件311上、和/或从印版辊筒321转移到中间辊筒326上、和/或从中间辊筒326转移到转印器件311上、和/或从转印器件311转移到布料2上等。
应当理解，在上面结合图2和图3对根据本公开的转移印花单元30、特别是静电成像印刷色组32的工作原理及工作流程中所描述的对各个组件施加的相应电位仅为示例性的。在实践中，本领域技术人员可以根据需求(例如根据所使用的染剂类型)进行调整，而不脱离本公开的范畴。需要明确的是，在根据本公开的静电成像转移印花设备1中至少基于静电成像技术形成印花图样。
在图1中，转印器件311可以构造为环形的毯带313，转印装置31还可以包括压辊314、背压辊315、传动辊316和与相应的静电成像印刷色组32相配设的多个(比如，六个)压印辊320(在这里为了清楚起见，仅一个压印辊320配设有附图标记)。毯带313可以张紧在背压辊315与传动辊316之间并且能在背压辊315与传动辊316的驱动下循环地运动。压印辊320可以构造为用于将毯带313压靠在相应的印版辊筒321或中间辊筒326(如果存在的话)上，使得印花图样从印版辊筒321或中间辊筒326转移到毯带313上。
在根据本公开的一个实施例中，可以在印版辊筒321或中间辊筒326(如果存在的话)上设置有施压装置，所述施压装置可以构造为使得印版辊筒321或中间辊筒326能以预定的压力抵压压印辊320；和/或可以在压印辊320上设置有施压装置，施压装 置可以构造为使得压印辊320能以预定的压力抵压印版辊筒321或中间辊筒326，由此能够良好地提供使印花图样更好地从印版辊筒321或中间辊筒326转移到毯带313上的机械压力。
压辊314和背压辊315可以沿毯带313的运动方向(在图1中，毯带沿顺时针运动)设置在静电成像印刷色组32的下游，布料2和毯带313能在压辊314与背压辊315之间行进穿过。压辊314与背压辊315可以构造为将布料2与毯带313压靠在一起，使得印花图样能在压辊314与背压辊315之间从毯带313转移到布料2上。
为了能够将印花图样可靠地转移到布料2上，可以在压辊314上设置有加压装置317。加压装置317可以构造为使得压辊314能以预定的压力抵压到背压辊314上，从而使得布料2和毯带313在压辊314与背压辊315之间紧密贴合，以便印花图样可靠并且完整地从毯带313转移到布料2上。在根据本公开的一个实施例中，也可以在背压辊314上设置有加压装置，所述加压装置构造为使得背压辊314能以预定的压力抵压到压辊315上。
在根据本公开的一个实施例中，加压装置317和/或施压装置可以构造为电机、气缸或液压缸。
如图1所示，转印装置31可以还包括用于调节毯带313的张力的毯带张力辊318和/或用于引导毯带313的导辊319和/或用于纠正毯带313的横向定位偏差的毯带对中纠偏装置310，由此能够更好地控制毯带313的运动和定位，从而实现对布料2的高精度并且无错位的转移印花。在此，毯带对中纠偏装置310可以沿毯带313的运动方向设置在静电成像印刷色组32的上游，从而更好地减少印花图样的偏移并保证转移印花质量。
此外，转印装置31可以包括转印器件清洁装置33。转印器件清洁装置33可以沿毯带313的运动方向设置在压辊314和背压辊315的下游并且设置在静电成像印刷色组32的上游，从而能够在印花图样从毯带313转移到布料2上之后清洁毯带313，以便毯带313能投入到下一次的转移印花过程中，避免残留的染剂影响转移印花效果。如图1所示，转印器件清洁装置33可以沿毯带313的运动方向依次包括喷淋管331、毛刷辊332、刮刀333以及设置在下方的接水盘334。其中，在毯带313运动经过转印器件清洁装置33时，能够例如使用喷淋管331朝向毯带313喷出清洗液，并通过毛刷辊332将附着的染剂刷除，随后借助于刮水刀刮除在毯带313上残留的液体，而多余的液体可以通过接水盘334回收以便后续处理。由此，能够实现毯带313的循环使 用。通过将能够循环使用的毯带313作为转移载体，能避免使用一次性的或者说损耗大的转印纸或转印膜的损耗，从而满足低碳环保的需求。
在根据本公开的一个实施例中，为了能够使用长度不同的环形的毯带313，传动辊316构造为能远离或靠近背压辊315移动，从而能够根据所要使用的毯带313的长度相应地调节在传动辊316与背压辊315之间的距离。
在根据本公开的一个实施例中，在毯带313的表面可以设置有橡胶涂覆层。所述橡胶涂覆层厚度可以为3mm至15mm。橡胶可以为聚氨酯橡胶、丁腈橡胶、氯丁橡胶、氯磺化聚乙烯橡胶、或乙丙橡胶等。所述橡胶涂覆层的表面硬度可以为邵氏45度至90度。毯带313的表面结构可以为光滑面或雕刻面，所述雕刻面的花型可以为菱形、圆形、正方形、或六边形等，雕刻的线数可以为20线至600线，雕刻的网坑深度可以为10μm至100μm。毯带313的周长可以为印版辊筒321的周长的整数倍。
图4示出了根据本公开的第二实施例的静电成像转移印花设备1。在图4所示的实施例中，输布系统10和给湿处理装置20以及静电成像印刷色组32能以与根据图1的实施例类似的方式构造和运行，因此在此不做过多赘述。为简明起见，以下主要说明图4所示的实施例与图1所示的实施例的区别。在图4所示的实施例中，转移器件311可以也构造为环形的毯带313，但替代于图1中的传动辊316和多个压印辊320，在图4中设置仅一个传动压印辊328。毯带313可以张紧在背压辊315与传动压印辊328之间并且能在背压辊315与传动压印辊328的驱动下循环地运动。在根据本公开的一个实施例中，传动压印辊328的直径可以远大于背压辊315的直径。沿毯带313的运动方向在背压辊315的上游围绕传动压印辊328可以设置有6个静电成像印刷色组32，各个静电成像印刷色组32的印版辊筒321或中间辊筒326(如果存在的话)能将毯带313抵压在传动压印辊328上，使得印花图样能从印版辊筒321或中间辊筒326转移到毯带313上。
在根据本公开的一个实施例中，可以在印版辊筒321或中间辊筒326(如果存在的话)上设置有施压装置，所述施压装置构造为使得印版辊筒321或中间辊筒326能以预定的压力抵压传动压印辊328，由此能够提供使印花图样更好地从印版辊筒321或中间辊筒326转移到毯带313上的机械压力。
在根据本公开的一个实施例中，为了能够使用长度不同的环形的毯带313，传动压印辊328构造为能远离或靠近背压辊315移动，从而能够根据所要使用的毯带313的长度相应地调节在传动压印辊328与背压辊315之间的距离。
图5示出了根据本公开的第三实施例的静电成像转移印花设备1。在图5所示的实施例中，静电成像转移印花设备1的输布系统10、给湿处理装置20和转移印花单元30’、30”能以与根据图1的实施例类似的方式构造和运行，因此在此不做过多赘述。为简明起见，以下主要说明图5所示的实施例与图1所示的实施例的区别。可以看出，与图1所示的实施例相比，在图5所示的实施例中，静电成像转移印花设备1可以构造为用于对布料2进行双面的转移印花并且因此具有两个转移印花单元，即：第一转移印花单元30’和第二转移印花单元30”。这两个转移印花单元可以在布料2的行进方向上依次设置，使得能经由所述两个转移印花单元依次对布料2的正面和背面进行转移印花。在通过第一转移印花单元30’对布料2的一个面进行转移印花后，可以将所述布料2继续输送给第二转移印花单元30”，以便对布料2的另一个面进行转移印花，然后，经过双面转移印花的布料2’可以从静电成像转移印花设备1导出。
在根据本公开的一个实施例中，静电成像转移印花设备1也可以例如具有两个在布料2的行进方向上依次设置的、在按照图4的实施例中所示的具有传动压印辊328的转移印花单元30。也可以设想的是，静电成像转移印花设备1可以例如具有一个在按照图1的实施例中所示的具有传动辊316和压印辊315的转移印花单元30和一个在按照图4的实施例中所示的具有传动压印辊328的转移印花单元30，以用于对布料2进行双面的转移印花。
图6示出了根据本公开的第四实施例的静电成像转移印花设备1。在图6所示的实施例中，输布系统10和给湿处理装置20以及静电成像印刷色组32能以与根据图1的实施例类似的方式构造和运行，因此在此不做过多赘述。为简明起见，以下主要说明图6所示的实施例与图1所示的实施例的区别。在图6所示的实施例中，代替于图1、图4和图5中所示的毯带313，转印器件311可以构造为转移胶辊41。转印装置31可以包括能抵压在转移胶辊41上的压辊314，布料2在行进经过给湿处理装置20之后能经由转向导辊40转向并在转移胶辊31与压辊314之间行进穿过。沿转移胶辊41的运动方向在压辊314的上游围绕转移胶辊41可以设置有多个(比如，六个)静电成像印刷色组32。各个静电成像印刷色组32的印版辊筒321或中间辊筒326(如果存在的话)能抵压在转移胶辊41上，使得印花图样能从印版辊筒321或中间辊筒326转移到转移胶辊41上。
在根据本公开的一个实施例中，可以在印版辊筒321或中间辊筒326(如果存在的话)上设置有施压装置，所述施压装置可以构造为使得印版辊筒321或中间辊筒326 能以预定的压力抵压转移胶辊41，由此能够提供使印花图样更好地从印版辊筒321或中间辊筒326转移到转移胶辊41上的机械压力。
在根据本公开的一个实施例中，在压辊314和/或转移胶辊41上也可以设置有加压装置317。加压装置317构造为使得压辊314和转移胶辊41能以预定的压力相互抵靠，从而使得在压辊314与转移胶辊41之间行进穿过的布料2能与转移胶辊41紧密压靠，以便印花图样可靠地并且完整地从转移胶辊41转移到布料2上。
在根据本公开的一个实施例中，加压装置317和/或施压装置可以构造为电机、气缸或液压缸。
此外，转印装置31可以包括转印器件清洁装置33，转印器件清洁装置33可以沿转移胶辊41的运动方向设置在压辊314的下游并且设置在静电成像印刷色组32的上游，从而能够在印花图样从转移胶辊41转移到布料2上之后清洁转移胶辊41，以便转移胶辊41能投入到下一次的转移印花过程。转印器件清洁装置33可以例如与参照图1所描述的转印器件清洁装置33类似地构造。通过将能够循环使用的转移胶辊41作为转移载体，能避免使用一次性的或者说损耗大的转印纸或转印膜的损耗，从而满足低碳环保的转移印花生产需求。
在根据本公开的一个实施例中，转移胶辊41的表面可以设置有橡胶涂覆层或树脂涂覆层，所述涂覆层厚度可以为3mm至15mm。橡胶可以为聚氨酯橡胶、丁腈橡胶、氯丁橡胶、氯磺化聚乙烯橡胶、或乙丙橡胶等。树脂可以为柔板树脂。所述涂覆层的表面硬度可以为邵氏45度至90度。转移胶辊41的表面结构可以为光滑面或雕刻面，所述雕刻面的花型可以为菱形、圆形、正方形、或六边形等，雕刻的线数可以为20线至600线，雕刻的网坑深度可以为10μm至100μm。转移胶辊41的周长可以为印版辊筒321的周长的整数倍。
图7示出了根据本公开的第五实施例的静电成像转移印花设备1。在图7所示的实施例中，静电成像转移印花设备1的输布系统10和给湿处理装置20能以与根据图1的实施例类似的方式构造和运行，而转移印花单元30’、30”能以与根据图6的实施例类似的方式构造和运行，因此在此不做过多赘述。为简明起见，以下主要说明图7所示的实施例与图6所示的实施例的区别。可以看出，与图6所示的实施例相比，在图7所示的实施例中，静电成像转移印花设备1可以具有第一转移印花单元30’和第二转移印花单元30”。在此，第一转移印花单元30’的转移胶辊41可以构造为第二转移印花单元30”的压辊314，并且第二转移印花单元30”的转移胶辊41可以构造为第 一转移印花单元30’的压辊314。此外，第一转移印花单元30’和第二转移印花单元30”可以关于布料2对称地设置。也就是说，在图7所示的实施例中，第一转移印花单元30’和第二转移印花单元30”各自的转移胶辊41能例如在配设的加压装置317的作用下以预定的压力相互抵靠并完成印花图样从转移胶辊41到布料2上的转移。由此，能够省去相应的压辊314并且减少结构空间需求、降低制造成本。
在需要对布料2进行双面印花时，第一转移印花单元30’和第二转移印花单元30”各自的转移胶辊41可以都承载有印花图样，从而能同时对布料2的正面和背面进行转移印花。而在仅需要对布料2进行单面印花时，可以使得第一转移印花单元30’和第二转移印花单元30”各自的转移胶辊41中的仅一个转移胶辊41承载有印花图样，而另一个转移胶辊41未承载有印花图样，因此，所述另一个转移胶辊41可以用作如图6所示的压辊314并以此对布料2进行单面印花。
在根据本公开的一个实施例中，静电成像转移印花设备1也可以具有两个在布料2的行进方向上依次设置的、在按照图6的实施例中所示的具有转移胶辊41的转移印花单元30。由此能经由这两个转移印花单元30依次对布料2的正面和背面进行转移印花。
也可以设想的是，静电成像转移印花设备1具有在按照图1的实施例中所示的具有传动辊316和压印辊315的转移印花单元30、在按照图4的实施例中所示的具有传动压印辊328的转移印花单元30以及在按照图6的实施例中所示的具有转移胶辊41的转移印花单元30中的两者，这两个转移印花单元30可以在布料2的行进方向上依次设置或关于布料2对置地设置，以用于对布料2进行双面的转移印花。
此外应当理解，虽然在结合图1和图4至图7的说明中均示例性地示出具有6个静电成像印刷色组32的转移印花单元30，但也可以在一个转移印花单元30中设置其他数量的静电成像印刷色组32、例如4至8个静电成像印刷色组32。
图8示出了本公开的一个实施例的静电成像转移印花系统100的示意性框图。可以看出，静电成像转移印花系统100可以包括根据本申请的静电成像转移印花设备1和固色设备50、水洗设备60、以及烘干定型设备70。经单面的转移印花或双面的转移印花的布料2可以在经过固色设备50进行固色、水洗设备60进行水洗和烘干定型设备70进行烘干定型处理后最终成为转移印花布料成品2”。
图9示出根据本公开的一个实施例的静电成像转移印花方法200的示意性流程图。在此，静电成像转移印花方法200用于在使用根据本公开的静电成像转移印花设 备1的情况下或在使用根据本公开的静电成像转移印花系统100的情况下对布料2进行基于静电成像的转移印花。静电成像转移印花方法200可以例如包括如下方法步骤：
方法步骤201，通过输布系统10将布料2引入到静电成像转移印花设备1中；
方法步骤202，通过给湿处理装置20将浆液给予布料2，使得布料2达到规定的带液率；
方法步骤203，在印版辊筒321上形成静电潜像，随后通过静电作用将染剂吸附在印版辊筒321上，以便在所述印版辊筒321的表面形成与所述静电潜像相对应的印花图样；
方法步骤204，将所形成的印花图样从印版辊筒321转移到转印器件311上；
方法步骤205，将印花图样从转印器件311转移到布料2上；
方法步骤206，对经转移印花的布料2’进行固色处理；
方法步骤207，对经固色的布料进行水洗处理；
方法步骤208，对经水洗的布料进行烘干定型处理，从而最终获得转移印花布料成品2”。
上文参照附图描述了根据本公开的示例性实施例。但是，本领域技术人员应当理解，在不脱离本公开的精神和范围的情况下，能够对本公开的示例性实施例进行多种变化和改变。所有变化和改变均包含在权利要求所限定的本公开的保护范围内。本公开由所附权利要求限定，并且这些权利要求的等同物也包含在内。

Claims (38)

  1. 一种静电成像转移印花设备，其构造为用于对布料进行基于静电成像的转移印花，所述静电成像转移印花设备具有机架，其特征在于，在所述机架上沿布料的行进方向依次设置有：
    输布系统，所述输布系统构造为用于将布料引入到静电成像转移印花设备中；
    给湿处理装置，所述给湿处理装置构造为用于将浆液给予布料，使得布料达到规定的带液率；以及
    至少一个转移印花单元，所述转移印花单元包括转印装置以及至少一个静电成像印刷色组，所述静电成像印刷色组构造为用于基于静电成像形成印花图样，所述转印装置构造为用于经由转印器件将通过静电成像印刷色组形成的印花图样转移到布料上；
    其中，所述静电成像印刷色组包括印版辊筒，沿所述印版辊筒的转动方向依次设置有成像装置和着墨装置，在所述印版辊筒上涂覆有光导体涂层，所述成像装置构造成在所述光导体涂层上形成静电潜像，所述着墨装置构造成以染剂在所述印版辊筒的表面形成与所述静电潜像相对应的印花图样。
  2. 根据权利要求1所述的静电成像转移印花设备，其特征在于，所述印版辊筒配设有用于为所述印版辊筒充电的第一电源。
  3. 根据权利要求1所述的静电成像转移印花设备，其特征在于，所述转印器件配设有用于为所述转印器件充电的第二电源。
  4. 根据权利要求1所述的静电成像转移印花设备，其特征在于，所述成像装置包括激光光源或发光二极管光源。
  5. 根据权利要求1所述的静电成像转移印花设备，其特征在于，所述着墨装置包括墨仓和显影辊，在所述墨仓中容纳有染剂，所述显影辊构造为用于将所述墨仓中的染剂转移到所述印版辊筒上以形成印花图样。
  6. 根据权利要求5所述的静电成像转移印花设备，其特征在于，在所述显影辊下方设置有用于收集多余的染剂的染剂收集装置。
  7. 根据权利要求6所述的静电成像转移印花设备，其特征在于，所述静电成像转移印花设备包括经由回收管道与所述染剂收集装置连接的染剂再处理装置，所述染剂 再处理装置构造为用于对经由染剂收集装置收集的多余的染剂进行分离和再处理。
  8. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述静电成像印刷色组包括用于清洁印版辊筒的印版辊筒清洁装置，所述印版辊筒清洁装置沿所述印版辊筒的转动方向设置在所述成像装置的上游。
  9. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述静电成像印刷色组包括设置在所述印版辊筒与所述转印器件之间的中间辊筒，所述中间辊筒构造为将印花图样从印版辊筒转移到转印器件上。
  10. 根据权利要求9所述的静电成像转移印花设备，其特征在于，所述中间辊筒配设有用于对所述中间辊筒充电的第三电源。
  11. 根据权利要求9所述的静电成像转移印花设备，其特征在于，所述静电成像印刷色组包括用于清洁中间辊筒的中间辊筒清洁装置，所述中间辊筒清洁装置沿所述中间辊筒的转动方向设置在所述转印器件的下游并且设置在所述印版辊筒的上游。
  12. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述转印器件配设有转印器件清洁装置，所述转印器件清洁装置构造成用于在印花图样从转印器件转移到布料上之后清洁所述转印器件。
  13. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述转印器件构造为环形的毯带，所述转印装置包括压辊和背压辊，布料和所述毯带能在所述压辊与所述背压辊之间行进穿过，并且所述压辊与所述背压辊构造为将布料和所述毯带压靠在一起，使得印花图样能从所述毯带转移到布料上。
  14. 根据权利要求13所述的静电成像转移印花设备，其特征在于，在所述压辊上设置有加压装置，所述加压装置构造为使得所述压辊能以预定的压力抵压到所述背压辊上；和/或在所述背压辊上设置有加压装置，所述加压装置构造为使得所述背压辊能以预定的压力抵压到所述压辊上。
  15. 根据权利要求13所述的静电成像转移印花设备，其特征在于，所述转印装置包括传动辊，所述毯带张紧在所述背压辊与所述传动辊之间并且能在所述背压辊与所述传动辊的驱动下循环地运动。
  16. 根据权利要求15所述的静电成像转移印花设备，其特征在于，所述传动辊构 造为能远离或靠近所述背压辊移动，从而能够使用具有不同长度的毯带。
  17. 根据权利要求15所述的静电成像转移印花设备，其特征在于，所述转印装置包括与相应的静电成像印刷色组相配设的压印辊，所述静电成像印刷色组和所述压印辊沿所述毯带的运动方向设置在所述背压辊的上游，所述压印辊构造为将所述毯带抵压在相应的静电成像印刷色组的印版辊筒上，使得印花图样从所述印版辊筒转移到所述毯带上。
  18. 根据权利要求17所述的静电成像转移印花设备，其特征在于，在所述印版辊筒上设置有施压装置，所述施压装置构造为使得所述印版辊筒能以预定的压力抵压所述压印辊；和/或在所述压印辊上设置有施压装置，所述施压装置构造为使得所述压印辊能以预定的压力抵压所述印版辊筒。
  19. 根据权利要求13所述的静电成像转移印花设备，其特征在于，所述转印装置包括传动压印辊，所述毯带张紧在所述背压辊与所述传动压印辊之间并且能在所述背压辊与所述传动压印辊的驱动下循环地运动。
  20. 根据权利要求19所述的静电成像转移印花设备，其特征在于，所述传动压印辊构造为能远离或靠近所述背压辊移动，从而能够使用具有不同长度的毯带。
  21. 根据权利要求19或20所述的静电成像转移印花设备，其特征在于，沿所述毯带的运动方向在所述背压辊的上游围绕所述传动压印辊设置有多个静电成像印刷色组，所述静电成像印刷色组的印版辊筒能将所述毯带抵压在传动压印辊上，使得印花图样能从所述印版辊筒转移到所述毯带上。
  22. 根据权利要求21所述的静电成像转移印花设备，其特征在于，在所述印版辊筒上设置有施压装置，所述施压装置构造为使得所述印版辊筒能以预定的压力抵压所述传动压印辊。
  23. 根据权利要求13所述的静电成像转移印花设备，其特征在于，所述转印装置包括毯带张力辊，所述毯带张力辊构造为用于调节所述毯带的张力。
  24. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述转印器件构造为转移胶辊，所述静电成像印刷色组的印版辊筒能抵压在所述转移胶辊上，使得印花图样能从所述印版辊筒转移到所述转移胶辊上。
  25. 根据权利要求24所述的静电成像转移印花设备，其特征在于，围绕所述转移胶辊设置有多个静电成像印刷色组。
  26. 根据权利要求24所述的静电成像转移印花设备，其特征在于，所述转印装置包括沿所述转移胶辊的转动方向设置在所述印版辊筒下游的压辊，布料能在所述转移胶辊与所述压辊之间行进穿过，并且所述压辊构造为将布料压靠在所述转移胶辊上，使得印花图样从所述转移胶辊转移到布料上。
  27. 根据权利要求13所述的静电成像转移印花设备，其特征在于，在所述毯带的表面设置有橡胶涂覆层，所述橡胶涂覆层厚度为3mm至15mm和/或所述橡胶涂覆层的表面硬度为邵氏45度至90度；和/或所述毯带的周长为印版辊筒的周长的整数倍。
  28. 根据权利要求24所述的静电成像转移印花设备，其特征在于，在所述转移胶辊的表面设置有橡胶涂覆层或树脂涂覆层，所述涂覆层厚度为3mm至15mm和/或所述涂覆层的表面硬度为邵氏45度至90度；和/或所述转移胶辊的周长为印版辊筒的周长的整数倍。
  29. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，每个转移印花单元具有4至8个静电成像印刷色组。
  30. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述输布系统沿着布料的行进方向依次包括：布车、第一展幅分丝辊、第一张力辊、纠偏对边装置、牵引装置、第二张力辊和第二展幅分丝辊。
  31. 根据权利要求1至7中任一项所述的静电成像转移印花设备，其特征在于，所述静电成像转移印花设备具有两个转移印花单元，并且所述两个转移印花单元在布料的行进方向上依次设置，使得能经由所述两个转移印花单元依次对布料的正面和背面进行转移印花。
  32. 根据权利要求13所述的静电成像转移印花设备，其特征在于，所述静电成像转移印花设备具有第一转移印花单元和第二转移印花单元，其中，第一转移印花单元的压辊构造为第二转移印花单元的背压辊，并且第二转移印花单元的压辊构造为第一转移印花单元的背压辊，第一转移印花单元和第二转移印花单元关于布料对称地设置，使得能经由第一转移印花单元和第二转移印花单元同时对布料的正面和背面进行转移印花。
  33. 根据权利要求26所述的静电成像转移印花设备，其特征在于，所述静电成像转移印花设备具有第一转移印花单元和第二转移印花单元，其中，第一转移印花单元的转移胶辊构造为第二转移印花单元的压辊，并且第二转移印花单元的转移胶辊构造为第一转移印花单元的压辊，第一转移印花单元和第二转移印花单元关于布料对称地设置，使得能经由第一转移印花单元和第二转移印花单元同时对布料的正面和背面进行转移印花。
  34. 一种静电成像转移印花系统，其特征在于，所述静电成像转移印花系统包括根据权利要求1至33中任一项所述的静电成像转移印花设备和固色设备、水洗设备、以及烘干定型设备。
  35. 一种静电成像转移印花方法，其特征在于，所述方法用于在使用根据权利要求1至33中任一项所述的静电成像转移印花设备的情况下或在使用根据权利要求34所述的静电成像转移印花系统的情况下对布料进行基于静电成像的转移印花。
  36. 根据权利要求35所述的静电成像转移印花方法，其特征在于，所述方法包括如下方法步骤：
    通过输布系统将布料引入到静电成像转移印花设备中；
    通过给湿处理装置将浆液给予布料，使得布料达到规定的带液率；
    在印版辊筒上形成静电潜像，随后通过静电作用将染剂吸附在印版辊筒上，以便在所述印版辊筒的表面形成与所述静电潜像相对应的印花图样；
    将所形成的印花图样从印版辊筒转移到转印器件上；
    将印花图样从转印器件转移到布料上。
  37. 根据权利要求36所述的静电成像转移印花方法，其特征在于，在静电力和/或机械压力的共同作用下将所形成的印花图样从印版辊筒转移到转印器件上和/或将所形成的印花图样从转印器件转移到布料上。
  38. 根据权利要求35至37中任一项所述的静电成像转移印花方法，其特征在于，所述方法还包括如下方法步骤：对经转移印花的布料进行固色、水洗和烘干定型处理。
PCT/CN2023/123672 2022-10-19 2023-10-10 静电成像转移印花设备、系统和方法 WO2024082993A1 (zh)

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