EP3427962B1 - In-line printing device and method for printing a textile according to the in-line process - Google Patents

In-line printing device and method for printing a textile according to the in-line process Download PDF

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Publication number
EP3427962B1
EP3427962B1 EP17180430.5A EP17180430A EP3427962B1 EP 3427962 B1 EP3427962 B1 EP 3427962B1 EP 17180430 A EP17180430 A EP 17180430A EP 3427962 B1 EP3427962 B1 EP 3427962B1
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EP
European Patent Office
Prior art keywords
textile
printing device
printing
printed
material carrier
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Application number
EP17180430.5A
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German (de)
French (fr)
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EP3427962C0 (en
EP3427962A1 (en
Inventor
Angelo Schiestl
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Individual
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Individual
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Priority to EP17180430.5A priority Critical patent/EP3427962B1/en
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Publication of EP3427962C0 publication Critical patent/EP3427962C0/en
Publication of EP3427962B1 publication Critical patent/EP3427962B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/02—Platens
    • B41J11/06—Flat page-size platens or smaller flat platens having a greater size than line-size platens

Definitions

  • the invention relates to an in-line printing device for printing at least one textile according to the preamble of claim 1 and a method for printing a textile according to the in-line printing method according to the preamble of claim 11.
  • Such a device has a base body on which a conveying device is provided, at least one printing device which is provided on the base body and is designed to print the textile, and a drying device which is provided on the base body, arranged behind the printing device in the conveying direction and is designed to dry the print on the textile.
  • At least one textile is conveyed on a conveyor device which is arranged on a machine base body, the textile is fed along the conveyor device to at least one printing device which is provided on the base body and is designed to print the textile, the printed textile is fed along the conveyor device to a drying device which is provided on the base body, is arranged behind the printing device in the conveying direction and is designed to dry the print on the textile.
  • a textile to be printed goes through a number of individual steps until it is printed with a designated print image. These can vary depending on the print image or textile.
  • the expert is aware of the need to carry out a number of of individual devices into which the textile is inserted for each work step. The repeated insertion and removal of the textile from the individual devices leads to an unavoidable positioning inaccuracy that is difficult to compensate for and leads to shifts within the printed image.
  • a generic printing device is based on the EP 2 033 783 A1 in which individual process steps are carried out in succession on a textile placed on a pallet.
  • the textile is first pretreated, which can include applying a pretreatment fluid to penetrate and impregnate the textile fibers, drying and pressing.
  • the finished printed textile is dried in a drying station, which can include applying heat radiation or pressing with a heated plate.
  • the present invention has for its object to provide a device and a method for printing a textile, with which a printed image on a textile can be provided particularly precisely.
  • the object is achieved by a device according to claim 1 and a method according to claim 11.
  • a first basic idea of the invention is to provide a printing device which has devices for individual sub-steps for printing a printed product, in particular a textile.
  • the devices for printing the printed product can be provided in a modular manner and adapted to the printed image and/or the textile as required.
  • the printing device is designed with a base body on which a conveyor device is provided.
  • the required devices for producing the printed image on the textile can be provided along the conveyor device as required, preferably on base body modules.
  • the textile can be held on a printed product carrier, preferably stretched, whereby the printed product carrier can hold the textile in a predetermined orientation relative to the conveyor device.
  • at least two printing devices can be provided, each of which can provide at least part of the intended printed image.
  • an intermediate drying device can be provided between the two printing devices, which dries the ink of the at least one first printing device on the textile before further printing ink is provided on the textile by means of the second printing device.
  • the printing devices can be static and extend over the entire width of the conveyor. Individual or all printing devices can alternatively have at least one movable print head that moves transversely to the conveyor.
  • a preferred embodiment of the present invention consists in that a pretreatment device is provided on the base body, which has a spray station, a drying device and a pressing station and is designed to pretreat a surface of the textile for printing.
  • the preferred pretreatment device can in particular be of modular construction, wherein the pretreatment device can be provided on at least one part or module of the base body of the printing device as required.
  • the pretreatment device can in particular be designed to prepare the fabric of a textile for the absorption of a printing ink, in particular of the first printing device. This can prevent the printing ink from running or penetrating the fabric of the textile. This can in particular be beneficial to the sharpness of the printed image.
  • the pretreatment device can be adapted as required and formed with any combination and number of pretreatment agents. These can be provided on the same or on different modules of the base body.
  • the conveying device is designed as a circulation system which makes the at least one printing medium available for reuse after passing through the individual devices, whereby the textile with the printing medium can be delivered to the individual devices of the printing device.
  • the conveying device can connect a rear end of the printing device, at which the printing medium with the finished printed textile leaves the drying device after the second printing device, with a front area of the printing device, from which textile is delivered to the individual devices which can be fed to the printing device.
  • the in-line printing device can be a continuously operating device with a preset conveying speed of the print material carriers on the conveyor device.
  • each module of the base body of the printing device can have a part of the conveyor device. In particular, when modules are combined, they can together provide at least a part of the conveyor device.
  • the conveyor device has a return area in which the at least one print material carrier can be equipped with new textile.
  • the latter can be equipped with new textile, in particular in the circulating circuit system along the conveyor belt.
  • a storage area for print material carriers is provided after the return area in the conveying direction, from which the at least one print material carrier with textile can be delivered to the devices of the printing device.
  • more print material carriers can be provided on the conveying device than can be printed with textile per unit of time at a certain conveying speed.
  • the additional print material carriers equipped with textile can be temporarily stored or temporarily saved in the storage area, and can be fed to the conveying device from the storage area as required. This can, for example, compensate for short-term interruptions when equipping print material carriers with textile, which can be beneficial to uninterrupted operation of the printing device.
  • the conveying device particularly preferably has at least one circulating conveyor.
  • several circulating conveyors can be provided, which can also have different conveying directions.
  • a circulating system can be formed, which delivers print material carriers clockwise or anticlockwise through the printing device to the individual devices.
  • each module of the printing device has at least a part of the conveying device, in particular at least one circulating conveyor.
  • a support station is provided by means of which the at least one print material carrier can be equipped with the textile to be printed and can be provided on the conveyor.
  • the print material carrier can in particular have a clamping frame on which the textile can be fixed in place.
  • the provision of textile on the print material carriers can be done manually or automatically.
  • the at least one print material carrier can be provided on the conveyor with a predetermined orientation and/or position.
  • a locking system or the provision of conveyor pins on the conveyor or the print material carriers with corresponding conveyor eyes on the print material carriers or the conveyor can be provided. In this way, the position of a print material carrier on the conveyor can be fixed.
  • a projection device is provided in the area of the support station, which projects an area to be printed onto the textile, by means of which the textile can be positioned on the print material carrier.
  • the projection of the area to be printed onto the textile can be imaged, for example, by means of a laser, for example in the form of a contour of the printing area.
  • the subsequent position of the print image can be recorded, displayed, checked and/or corrected, if necessary, based on its projected contour when the textile is fixed to the print material carrier.
  • This enables the textile to be aligned for precise printing on the print material carrier.
  • the print material carrier By providing the print material carrier at a precise location on the conveyor device, the position of the textile in relation to the conveyor device and thus also in relation to the individual devices of the printing device can be adjusted and defined when the textile is provided on the print material carrier.
  • an optical sensor is provided for adjusting the position of the at least one print head with the printing area on the textile, which sensor adjusts the positioning of the textile with a positioning of the print head.
  • the starting point of the print head for printing on the textile can vary depending on the positioning of the print area on the textile.
  • the contour of a textile to be printed for example a T-shirt, a sweater or any other outer or inner clothing, can be detected by means of the optical sensor and the positioning of the print head can be aligned with a positioning of the print area on the textile, preferably stored in a programmable control unit.
  • an adjustment device which adapts the positioning of the print head to the positioning of the printing area. If the positioning of the print head deviates from a positioning of the printing area, as detected in particular by means of the optical sensor, the adjustment device can adapt the positioning, in particular the start position of the print head, to the area to be printed. This can prevent the textile from being printed outside the printing area.
  • a sorting device is provided by means of which the textile, in particular with a positioning defect on the print material carrier, can be delivered to a reject area for corrected fixation of the textile on the print material carrier. If the textile is provided defectively on the print material carrier, so that error-free printing of the textile is prevented, the sorting device can feed the print material carrier to a reject area. As a result, the textile remains unprinted until its position on the print material carrier is corrected.
  • a reject area can, for example, be a separate discharge of the print material carrier from the circulation system of the printing device.
  • a reject device can be provided in that the incorrectly positioned textile is properly guided through the devices of the printing device, but no treatment or printing of the textile is carried out.
  • Such a rejected textile is therefore guided through the individual devices of the printing devices without any treatment of the textile, in particular the provision of a printed image on the textile.
  • the textile is removed from the print substrate, preferably unchanged, in the same way as a textile with a printed image.
  • the sorting device can detect a positioning defect in particular if, when the position of the at least one print head is aligned with the printing area on the textile, the adjustment device is not able to be properly positioned in the printing area. This can be due, for example, to a mechanical restriction of the movement of the print head.
  • the present invention also discloses a method according to claim 11.
  • a basic idea of the method according to the invention is to provide a textile to be printed on a print material carrier, which can preferably be arranged in a precise position on a conveyor device.
  • the textile can be delivered to individual printing devices, whereby the printing ink of the first printing device can be dried at least between a first printing device and a second printing device.
  • the printing device can be adapted as required, for example with additional printing devices, pre-treatment devices and/or a fixing device, preferably after the last printing device.
  • the respective device to be used for a printed textile can be arranged on the preferably modular machine base body of the printing device in a modular and flexibly adaptable manner.
  • individual modules of the base body can be added or exchanged, on which at least individual devices of the printing device can be provided. can.
  • different devices can be provided on the base body of the printing device, whereby, depending on the textile to be printed, individual devices for the printing process are switched on, whereas the other devices remain switched off.
  • the textile to be printed can be delivered to the individual devices of the printing device by means of a conveyor device, whereby the print material carrier can preferably be made available in a type of circulatory system after the printed textile has been removed in order to receive new textile to be printed.
  • the circulatory system can be formed in particular by the conveyor device.
  • the base body particularly preferably has modules on which individual or multiple devices of the printing device can be provided.
  • the textile is removed from the printing medium after printing and the printing medium is fed to a support area for reuse.
  • the printing medium can be equipped with new textile automatically, in particular mechanically, and/or manually.
  • the positioning of the textile and a positioning of the at least one print head are aligned with one another using an optical sensor. In this way, an alignment of the print head with respect to an area to be printed on the textile can be determined. Using an adjustment device, the positioning of the print head can then be adapted to the positioning of the printing area on the textile.
  • Fig.1 shows a printing device 10 according to the invention.
  • This can have at least one, preferably two modules I and II, on each of which a part of the printing devices of the printing device 10 can be provided.
  • the module I has a part of the machine base body, on which a part 30 of the conveyor device is arranged. Above the part 30 of the conveyor device, a first printing device 20, an intermediate drying device 21 and/or a second printing device 22 can be arranged.
  • the module II can have a further part of the machine base body of the printing device 10, on which a part 31 of the conveyor device can be provided.
  • a drying device 23, in particular in the form of a drying tunnel, can be provided on the module II.
  • the arrangement of the individual devices 20 to 23 can be distributed individually over a single module or over a plurality of modules. Their number and/or sequence can also be adapted to one another as required. Due to the modular design, part of the devices can be easily removed from the printing device or further modules with the devices provided for producing a printed textile can be provided. For this purpose, the corresponding part of the printing device is inserted into or removed from the printing device in the form of individual modules. A further part 32 of the conveying device can be provided behind the drying device 23, which preferably changes the conveying direction by an angle, in particular 90°.
  • a preferably longer segment 33 of the conveyor device can be provided, in which a return area 24 with a support station can be provided.
  • print material carriers 40 in particular which have been moved by means of the conveyor device through the individual devices of the printing device along the provided modules, can be equipped with a textile.
  • print material carriers can be conveyed from an end area of the printing device behind the printing devices to a start area of the printing device in front of the printing devices.
  • a projection device can also be provided in the support station.
  • a storage area for printing material carriers can be provided behind the return area, preferably in the partial area 33 or 34 of the conveyor device, from which the printing material carrier with textile can be delivered to the devices of the printing device.
  • arrows are shown on the surface, which can represent a conveying direction of the printing material carriers.
  • a closed circuit system of the conveyor device can preferably be formed, whereby printing material carriers can be continuously delivered to the individual devices of the printing device.
  • Fig.2 shows an enlarged view of the modules I and II of the printing device 10 with the devices 20 to 23, as already described with reference to Fig.1
  • each module can have a separate part of the conveyor device, which is preferably designed as a circulating conveyor.
  • the at least one print material carrier can be transferred from one module to the next module without interruption by means of the conveyor device. If a change to the printing device is necessary in order to take into account the requirements of a textile and/or a print image to be printed, the printing device can be expanded, supplemented or reduced by any number of self-contained modules.
  • the arrangement of devices on the individual modules shown in the figures is only one of many possible arrangements. In principle, the arrangement shown in the Fig.2
  • the distribution of two printing devices and a dryer on module I and another dryer on module II shown can also be modified so that each module has, for example, a dryer and a printing device.
  • the arrangement of the individual devices on the modules is preferably designed in such a way that the exchange/addition of individual modules or the removal of individual modules results in a sensible combination of devices.
  • a combination of devices is sensible if if it can be used to completely print at least one type of textile with at least one print image.
  • the length of the segment 33 of the conveyor device can be adjusted as required.
  • Fig.3 shows a further embodiment 50 of the printing device according to the invention, which has a further module III, which can be arranged upstream of modules I and II. In principle, an extension can also be arranged behind module II, as long as this makes sense from a printing point of view.
  • the module III is also formed with a part of the base body of the printing device 50, on which a partial segment 35 of the conveying device is formed, above which a pretreatment device can be provided.
  • the pretreatment device can in particular have a spray station 27, a drying unit 28 and/or a pressing station 29. These stations are particularly preferably arranged one after the other in the conveying direction in the manner described.
  • the pretreatment device can prepare the textile for the absorption of printing ink on its surface, whereby the printing ink can be prevented from running or penetrating the fabric of the textile.
  • the embodiment according to Fig.3 can also have the devices 20 to 23, namely the two printing devices and drying devices as well as the return area 24 with the support station and the conveyor device segments 30 to 34. These can also have the same properties as those described with reference to Fig.1 and/or 2.
  • the segment area 33 of the conveyor is in accordance with Fig.3 adapted in terms of its length, in particular extended, which enables seamless transport of the printing material carriers in the circulation system through modules III, I and II and the return area with the support station.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Ink Jet (AREA)
  • Coloring (AREA)

Description

Die Erfindung betrifft eine In-Line Druckvorrichtung zum Bedrucken mindestens eines Textils gemäß dem Oberbegriff des Anspruchs 1 und ein Verfahren zum Bedrucken eines Textils nach dem In-Line Druckverfahren gemäß dem Oberbegriff des Anspruchs 11.The invention relates to an in-line printing device for printing at least one textile according to the preamble of claim 1 and a method for printing a textile according to the in-line printing method according to the preamble of claim 11.

Eine solche Vorrichtung weist einen Grundkörper auf, an welchem eine Fördereinrichtung vorgesehen ist, mindestens eine Druckeinrichtung, welche an dem Grundköper vorgesehen ist und ausgebildet ist, das Textil zu bedrucken, und eine Trocknungseinrichtung, welche auf dem Grundkörper vorgesehen, in Förderrichtung hinter der Druckeinrichtung angeordnet und ausgebildet ist, den Druck auf dem Textil zu trocknen.Such a device has a base body on which a conveying device is provided, at least one printing device which is provided on the base body and is designed to print the textile, and a drying device which is provided on the base body, arranged behind the printing device in the conveying direction and is designed to dry the print on the textile.

Bei einem solchen Verfahren wird mindestens ein Textil auf einer Fördereinrichtung befördert, welche auf einem Maschinengrundkörper angeordnet ist, das Textil entlang der Fördereinrichtung mindestens einer Druckeinrichtung zugestellt, welche an dem Grundkörper vorgesehen und ausgebildet ist, das Textil zu bedrucken, das bedruckte Textil entlang der Fördereinrichtung einer Trocknungseinrichtung zugeführt, welche auf dem Grundköper vorgesehen, in Förderrichtung hinter der Druckeinrichtung angeordnet und ausgebildet ist, den Druck auf dem Textil zu trocknen.In such a method, at least one textile is conveyed on a conveyor device which is arranged on a machine base body, the textile is fed along the conveyor device to at least one printing device which is provided on the base body and is designed to print the textile, the printed textile is fed along the conveyor device to a drying device which is provided on the base body, is arranged behind the printing device in the conveying direction and is designed to dry the print on the textile.

Im Textildruck durchläuft ein zu bedruckendes Textil eine Vielzahl von Einzelschritten, bis dieses mit einem vorgesehenen Druckbild bedruckt ist. Diese können je nach Druckbild oder Textil variieren. Dem Fachmann ist es hierbei bekannt, eine Vielzahl von Einzelvorrichtungen vorzusehen, in welche das Textil für den jeweiligen Arbeitsschritt eingelegt wird. Das wiederholte Einlegen und Herausnehmen des Textils aus den einzelnen Vorrichtungen führt zu einer unvermeidbaren Positionierungsungenauigkeit, die kaum auszugleichen ist und zu Verschiebungen innerhalb des Druckbildes führt.In textile printing, a textile to be printed goes through a number of individual steps until it is printed with a designated print image. These can vary depending on the print image or textile. The expert is aware of the need to carry out a number of of individual devices into which the textile is inserted for each work step. The repeated insertion and removal of the textile from the individual devices leads to an unavoidable positioning inaccuracy that is difficult to compensate for and leads to shifts within the printed image.

Eine gattungsgemäße Druckvorrichtung geht aus der EP 2 033 783 A1 hervor, bei welcher einzelne Verfahrensschritte in Folge an einem auf einer Palette aufgebrachten Textil durchgeführt werden. Dabei wird das Textil zunächst vorbehandelt, was ein Aufbringen eines Vorbehandlungsfluides zum Eindringen und Imprägnieren der Textilfasern, ein Trocknen und Pressen umfassen kann. Nach dem Bedrucken in einer digitalen Druckstation wird das fertig bedruckte Textil in einer Trocknungsstation getrocknet, was ein Aufbringen von Wärmestrahlung oder ein Pressen mit einer beheizten Platte umfassen kann.A generic printing device is based on the EP 2 033 783 A1 in which individual process steps are carried out in succession on a textile placed on a pallet. The textile is first pretreated, which can include applying a pretreatment fluid to penetrate and impregnate the textile fibers, drying and pressing. After printing in a digital printing station, the finished printed textile is dried in a drying station, which can include applying heat radiation or pressing with a heated plate.

Ähnliche Druckvorrichtungen sind aus der EP 3 427 962 A1 und der EP 2 130 680 A1 bekannt.Similar printing devices are known from EP 3 427 962 A1 and the EP 2 130 680 A1 known.

Die vorliegende Erfindung stellt sich die Aufgabe, eine Vorrichtung sowie ein Verfahren zum Bedrucken eines Textils bereitzustellen, mit welchem ein Druckbild auf einem Textil besonders genau vorsehbar ist.The present invention has for its object to provide a device and a method for printing a textile, with which a printed image on a textile can be provided particularly precisely.

Erfindungsgemäß wird die Aufgabe durch eine Vorrichtung gemäß dem Anspruch 1 und ein Verfahren gemäß dem Anspruch 11 gelöst.According to the invention, the object is achieved by a device according to claim 1 and a method according to claim 11.

Bevorzugte Ausführungsformen der vorliegenden Erfindung sind in den abhängigen Ansprüchen angegeben.Preferred embodiments of the present invention are set out in the dependent claims.

Die erfindungsgemäße Vorrichtung ist dadurch gekennzeichnet,

  • dass mindestens eine zweite Druckeinrichtung (20, 22) zusätzlich zur mindestens einen ersten Druckeinrichtung (20) vorgesehen ist, welche jeweils mindestens einen digitalen Druckkopf aufweisen und ausgebildet sind, jeweils einen Teil des vorgesehenen Druckbildes zu erzeugen,
  • dass eine Zwischentrocknungseinrichtung (21) vorgesehen ist, welche auf den Grundkörper zwischen der mindestens einen ersten Druckeinrichtung (20) und der mindestens einen zweiten Druckeinrichtung (22) angeordnet und ausgebildet ist, die Farbe der mindestens einen ersten Druckeinrichtung (20) auf dem Textil zu trocknen, bevor die Druckerfarbe der mindestens einen zweiten Druckeinrichtung (22) aufgebracht wird.
The device according to the invention is characterized in that
  • that at least one second printing device (20, 22) is provided in addition to the at least one first printing device (20), each of which has at least one digital print head and is designed to produce a part of the intended print image,
  • that an intermediate drying device (21) is provided which is arranged on the base body between the at least one first printing device (20) and the at least one second printing device (22) and is designed to dry the ink of the at least one first printing device (20) on the textile before the printing ink of the at least one second printing device (22) is applied.

Ein erster Grundgedanke der Erfindung besteht darin, eine Druckvorrichtung bereitzustellen, welche Einrichtungen für einzelne Teilschritte zum Bedrucken eines Druckguts, insbesondere eines Textils aufweist. Die Einrichtungen zum Bedrucken des Druckguts können modular vorgesehen sein und bedarfsgerecht an das Druckbild und/oder das Textil angepasst werden. Hierfür ist die Druckvorrichtung mit einem Grundkörper ausgebildet, an welchem eine Fördereinrichtung vorgesehen ist. Entlang der Fördereinrichtung können die benötigten Einrichtungen zum Erzeugen des Druckbilds auf dem Textil bedarfsgerecht, vorzugsweise auf Gundkörpermodulen, vorgesehen werden. Das Textil kann auf einem Druckgutträger gehalten, vorzugsweise gespannt sein, wobei der Druckgutträger das Textil gegenüber der Fördereinrichtung in einer vorgegebenen Orientierung halten kann. Erfindungsgemäß können mindestens zwei Druckeinrichtungen vorgesehen sein, welche jeweils mindestens einen Teil des vorgesehenen Druckbildes bereitstellen können. Insbesondere zum Vermeiden
einer Interaktion zwischen der Druckerfarbe der ersten Druckeinrichtung und der Druckerfarbe der zweiten Druckeinrichtung, kann eine Zwischentrocknungseinrichtung zwischen den beiden Druckeinrichtungen vorgesehen sein, welche die Farbe der mindestens einen ersten Druckeinrichtung auf dem Textil trocknet, bevor mittels der zweiten Druckeinrichtung weitere Druckerfarbe auf dem Textil vorgesehen wird.A first basic idea of the invention is to provide a printing device which has devices for individual sub-steps for printing a printed product, in particular a textile. The devices for printing the printed product can be provided in a modular manner and adapted to the printed image and/or the textile as required. For this purpose, the printing device is designed with a base body on which a conveyor device is provided. The required devices for producing the printed image on the textile can be provided along the conveyor device as required, preferably on base body modules. The textile can be held on a printed product carrier, preferably stretched, whereby the printed product carrier can hold the textile in a predetermined orientation relative to the conveyor device. According to the invention, at least two printing devices can be provided, each of which can provide at least part of the intended printed image. In particular, to avoid
an interaction between the printing ink of the first printing device and the printing ink of the second printing device, an intermediate drying device can be provided between the two printing devices, which dries the ink of the at least one first printing device on the textile before further printing ink is provided on the textile by means of the second printing device.

Die Druckeinrichtungen können dabei statisch sein und sich über die gesamte Breite der Fördereinrichtung erstrecken. Einzelne oder alle Druckeinrichtungen können alternativ mindestens einen bewegbaren Druckkopf aufweisen, welcher sich quer zur Fördereinrichtung bewegt.The printing devices can be static and extend over the entire width of the conveyor. Individual or all printing devices can alternatively have at least one movable print head that moves transversely to the conveyor.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung besteht darin, dass eine Vorbehandlungseinrichtung auf dem Grundkörper vorgesehen ist, welche eine Sprühstation, eine Trocknungseinrichtung und eine Pressstation aufweist und ausgebildet ist, eine Oberfläche des Textils für einen Druck vorzubehandeln. Die bevorzugte Vorbehandlungseinrichtung kann insbesondere modular aufgebaut sein, wobei die Vorbehandlungseinrichtung an zumindest einem Teil beziehungsweise Modul des Grundkörpers der Druckvorrichtung bedarfsgerecht vorgesehen werden kann. Die Vorbehandlungseinrichtung kann insbesondere ausgebildet sein, das Gewebe eines Textils für die Aufnahme einer Druckerfarbe insbesondere der ersten Druckeinrichtung vorzubereiten. Hierdurch kann einem Verlaufen beziehungsweise einem Eindringen der Druckerfarbe in das Gewebe des Textils vorgebeugt werden. Dies kann insbesondere einer Schärfte des Druckbildes zuträglich sein. Grundsätzlich kann die Vorbehandlungseinrichtung bedarfsgerecht angepasst sein und mit einer beliebigen Kombination und Anzahl von Vorbehandlungsmitteln gebildet sein. Diese können auf demselben oder auf unterschiedlichen Modulen des Grundkörpers vorgesehen sein.A preferred embodiment of the present invention consists in that a pretreatment device is provided on the base body, which has a spray station, a drying device and a pressing station and is designed to pretreat a surface of the textile for printing. The preferred pretreatment device can in particular be of modular construction, wherein the pretreatment device can be provided on at least one part or module of the base body of the printing device as required. The pretreatment device can in particular be designed to prepare the fabric of a textile for the absorption of a printing ink, in particular of the first printing device. This can prevent the printing ink from running or penetrating the fabric of the textile. This can in particular be beneficial to the sharpness of the printed image. In principle, the pretreatment device can be adapted as required and formed with any combination and number of pretreatment agents. These can be provided on the same or on different modules of the base body.

Nach einer bevorzugten Weiterbildung der Erfindung ist es vorgesehen, dass die Fördereinrichtung als Kreislaufsystem ausgebildet ist, welches den mindestens einen Druckträger nach Durchlaufen der einzelnen Einrichtungen für eine erneute Verwendung bereitstellt, wobei das Textil mit dem Druckgutträger den einzelnen Einrichtungen der Druckvorrichtung zustellbar ist. Die Fördereinrichtung kann ein hinteres Ende der Druckeinrichtung, an welchem der Druckgutträger mit dem fertig bedruckten Textil die Trocknungseinrichtung nach der zweiten Druckeinrichtung verlässt, mit einem vorderen Bereich der Druckvorrichtung, von welchem aus Textil den einzelnen Einrichtungen der Druckvorrichtung zuführbar ist, verbinden. Demnach kann es sich bei der In-Line-Druckvorrichtung um eine kontinuierlich arbeitende Vorrichtung mit einer voreingestellten Fördergeschwindigkeit der Druckgutträger auf der Fördereinrichtung handeln. Grundsätzlich kann jedes Modul des Grundkörpers der Druckvorrichtung einen Teil der Fördereinrichtung aufweisen. Insbesondere bei Kombination von Modulen können diese gemeinsam zumindest einen Teil der Fördereinrichtung bereitstellen.According to a preferred development of the invention, it is provided that the conveying device is designed as a circulation system which makes the at least one printing medium available for reuse after passing through the individual devices, whereby the textile with the printing medium can be delivered to the individual devices of the printing device. The conveying device can connect a rear end of the printing device, at which the printing medium with the finished printed textile leaves the drying device after the second printing device, with a front area of the printing device, from which textile is delivered to the individual devices which can be fed to the printing device. Accordingly, the in-line printing device can be a continuously operating device with a preset conveying speed of the print material carriers on the conveyor device. In principle, each module of the base body of the printing device can have a part of the conveyor device. In particular, when modules are combined, they can together provide at least a part of the conveyor device.

Nach einer besonderen Weiterentwicklung der vorliegenden Erfindung ist es vorgesehen, dass die Fördereinrichtung einen Rückführbereich aufweist, in welchem der mindestens eine Druckgutträger mit neuem Textil bestückbar ist. Vorzugsweise nach Entfernen eines bedruckten Textils von dem mindestens einen Druckgutträger kann dieser, insbesondere in dem zirkulierenden Kreislaufsystem entlang des Förderbands, mit neuem Textil bestückt werden.According to a particular further development of the present invention, it is provided that the conveyor device has a return area in which the at least one print material carrier can be equipped with new textile. Preferably after removing a printed textile from the at least one print material carrier, the latter can be equipped with new textile, in particular in the circulating circuit system along the conveyor belt.

Besonders bevorzugt ist es nach einer Weiterentwicklung der vorliegenden Erfindung, dass in Förderrichtung nach dem Rückführbereich ein Staubereich für Druckgutträger vorgesehen ist, aus welchem der mindestens eine Druckgutträger mit Textil den Einrichtungen der Druckvorrichtung zustellbar ist. Vorzugsweise können auf der Fördereinrichtung mehr Druckgutträger vorgesehen sein, als bei einer bestimmten Fördergeschwindigkeit pro Zeiteinheit Textil bedruckt werden können. Die zusätzlichen mit Textil bestückten Druckgutträger können in dem Staubereich zwischengelagert beziehungsweise zwischengespeichert werden, wobei sie der Fördereinrichtung aus dem Staubereich bedarfsgerecht zugeführt werden können. Hierdurch können beispielsweise kurzfristige Unterbrechungen beim Bestücken von Druckgutträgern mit Textil ausgeglichen werden, was einem unterbrechungsfreien Betrieb der Druckvorrichtung zuträglich sein kann.According to a further development of the present invention, it is particularly preferred that a storage area for print material carriers is provided after the return area in the conveying direction, from which the at least one print material carrier with textile can be delivered to the devices of the printing device. Preferably, more print material carriers can be provided on the conveying device than can be printed with textile per unit of time at a certain conveying speed. The additional print material carriers equipped with textile can be temporarily stored or temporarily saved in the storage area, and can be fed to the conveying device from the storage area as required. This can, for example, compensate for short-term interruptions when equipping print material carriers with textile, which can be beneficial to uninterrupted operation of the printing device.

Besonders bevorzugt weist die Fördereinrichtung mindestens einen Umlaufförderer auf. Zum Bilden eines Kreislaufsystems können mehrere Umlaufförderer vorgesehen sein, welche auch unterschiedliche Förderrichtungen aufweisen können. Durch sukzessives Ändern der Förderrichtung zwischen benachbarten Umlaufförderern kann so ein Kreislaufsystem gebildet werden, welches Druckgutträger im oder gegen den Uhrzeigersinn durch die Druckvorrichtung den einzelnen den Einrichtungen zustellen kann. Besonders bevorzugt weist jedes Modul der Druckvorrichtung zumindest einen Teil der Fördereinrichtung, insbesondere mindestens einen Umlaufförderer, auf.The conveying device particularly preferably has at least one circulating conveyor. To form a circulating system, several circulating conveyors can be provided, which can also have different conveying directions. By successively changing the conveying direction between adjacent circulating conveyors, a circulating system can be formed, which delivers print material carriers clockwise or anticlockwise through the printing device to the individual devices. Particularly preferably, each module of the printing device has at least a part of the conveying device, in particular at least one circulating conveyor.

Eine besonders vorteilhafte Weiterentwicklung der vorliegenden Erfindung besteht darin, dass eine Auflagestation vorgesehen ist, mittels welcher der mindestens eine Druckgutträger mit dem zu bedruckenden Textil bestückbar und auf der Fördereinrichtung vorsehbar ist. Der Druckgutträger kann insbesondere ein Spannrahmen aufweisen, auf welchem das Textil ortsfest festgelegt sein kann. In der Auflagestation kann das Vorsehen von Textil auf den Druckgutträgern manuell oder automatisch erfolgen. Der mindestens eine Druckgutträger kann auf der Fördereinrichtung mit einer vorgegebenen Orientierung und/oder Position vorgesehen sein. Hierfür kann beispielsweise ein Rastsystem oder das Vorsehen von Förderzapfen an der Fördereinrichtung oder den Druckgutträgern mit entsprechend korrespondierenden Förderösen an den Druckgutträgern oder der Fördereinrichtung vorgesehen sein. Hierdurch kann die Position eines Druckgutträgers auf der Fördereinrichtung festgelegt sein.A particularly advantageous further development of the present invention is that a support station is provided by means of which the at least one print material carrier can be equipped with the textile to be printed and can be provided on the conveyor. The print material carrier can in particular have a clamping frame on which the textile can be fixed in place. In the support station, the provision of textile on the print material carriers can be done manually or automatically. The at least one print material carrier can be provided on the conveyor with a predetermined orientation and/or position. For this purpose, for example, a locking system or the provision of conveyor pins on the conveyor or the print material carriers with corresponding conveyor eyes on the print material carriers or the conveyor can be provided. In this way, the position of a print material carrier on the conveyor can be fixed.

Nach einer bevorzugten Weiterbildung der vorliegenden Erfindung ist es vorgesehen, dass im Bereich der Auflagestation eine Projektionseinrichtung vorgesehen ist, welche einen zu bedruckenden Bereich auf das Textil projiziert, anhand welchem das Textil auf dem Druckgutträger positionierbar ist. Die Projektion des zu bedruckenden Bereichs auf dem Textil kann beispielsweise mittels eines Lasers beispielsweise in Form einer Kontur des Druckbereichs abgebildet sein. Hierdurch kann bereits bei der Fixierung des Textils auf dem Druckgutträger die spätere Position des Druckbildes anhand seiner projizierten Kontur erfasst, dargestellt, kontrollier und/oder gegebenenfalls korrigiert werden. Somit ist eine Ausrichtung des Textils zum positionsgenauen Bedrucken auf dem Druckgutträger ermöglicht. Durch das ortsgenaue Vorsehen des Druckgutträgers auf der Fördereinrichtung kann so die Position des Textils gegenüber der Fördereinrichtung und somit auch gegenüber den einzelnen Einrichtungen der Druckvorrichtung bereits beim Vorsehen des Textils auf dem Druckgutträger angepasst und definiert werden.According to a preferred development of the present invention, a projection device is provided in the area of the support station, which projects an area to be printed onto the textile, by means of which the textile can be positioned on the print material carrier. The projection of the area to be printed onto the textile can be imaged, for example, by means of a laser, for example in the form of a contour of the printing area. As a result, the subsequent position of the print image can be recorded, displayed, checked and/or corrected, if necessary, based on its projected contour when the textile is fixed to the print material carrier. This enables the textile to be aligned for precise printing on the print material carrier. By providing the print material carrier at a precise location on the conveyor device, the position of the textile in relation to the conveyor device and thus also in relation to the individual devices of the printing device can be adjusted and defined when the textile is provided on the print material carrier.

Besonders bevorzugt ist es nach einer Weiterbildung der vorliegenden Erfindung, dass für eine Abstimmung der Position des mindestens einen Druckkopfs mit dem Druckbereich auf dem Textil ein optischer Sensor vorgesehen ist, der die Positionierung des Textils mit einer Positionierung des Druckkopfs abgleicht. In Abhängigkeit von der Positionierung des Druckbereichs auf dem Textil kann der Startpunkt des Druckkopfs für ein Bedrucken des Textils variieren. Um eine Positionierung des Druckkopfs, insbesondere einen Start und einen Endpunkt einer Druckzeile des Druckkopfs mit der Position des Druckbereichs auf dem Textil abzugleichen, kann mittels des optischen Sensors beispielsweise die Kontur eines zu bedruckenden Textils, beispielsweise eines T-Shirts, eines Pullovers oder einer anderen beliebigen Ober- und Unterbekleidung, erfasst werden und die Positionierung des Druckkopfs mit einem, vorzugsweise in einer programmierbaren Steuereinheit hinterlegten, Positionierung des Druckbereichs auf dem Textil abgeglichen werden.According to a further development of the present invention, it is particularly preferred that an optical sensor is provided for adjusting the position of the at least one print head with the printing area on the textile, which sensor adjusts the positioning of the textile with a positioning of the print head. Depending on The starting point of the print head for printing on the textile can vary depending on the positioning of the print area on the textile. In order to align a positioning of the print head, in particular a start and an end point of a print line of the print head with the position of the print area on the textile, the contour of a textile to be printed, for example a T-shirt, a sweater or any other outer or inner clothing, can be detected by means of the optical sensor and the positioning of the print head can be aligned with a positioning of the print area on the textile, preferably stored in a programmable control unit.

Für ein besonders ortsgenaues Vorsehen der Druckerfarbe auf dem Textil ist es vorzugsweise vorgesehen, dass eine Verstelleinrichtung vorgesehen ist, welche die Positionierung des Druckkopfs an die Positionierung des Druckbereichs anpasst. Weicht die Positionierung des Druckkopfs von einer Positionierung des Druckbereichs ab, wie er insbesondere mittels des optischen Sensors erfasst wurde, kann die Verstelleinrichtung die Positionierung, insbesondere die Startposition des Druckkopfs an den zu bedruckenden Bereich anpassen. Hierdurch kann einem Bedrucken des Textils außerhalb des Druckbereichs vorgebeugt sein.For a particularly precise location of the printing ink on the textile, it is preferably provided that an adjustment device is provided which adapts the positioning of the print head to the positioning of the printing area. If the positioning of the print head deviates from a positioning of the printing area, as detected in particular by means of the optical sensor, the adjustment device can adapt the positioning, in particular the start position of the print head, to the area to be printed. This can prevent the textile from being printed outside the printing area.

Besonders zweckmäßig ist es nach einer Weiterbildung der Erfindung, dass eine Sortiervorrichtung vorgesehen ist, mittels welcher das Textil, insbesondere mit einem Positionierungsmangel auf dem Druckgutträger, einem Ausschussbereich für eine korrigierte Fixierung des Textils auf dem Druckgutträger zustellbar ist. Sollte das Textil in mangelhafterweise auf dem Druckgutträger vorgesehen sein, so dass ein fehlerfreies Bedrucken des Textils verhindert ist, kann die Sortiervorrichtung den Druckgutträger einem Ausschussbereich zuführen. Hierdurch bleibt das Textil bis zur Korrektur seiner Position auf dem Druckgutträger unbedruckt. Ein Ausschussbereich kann beispielsweise eine gesonderte Abführung des Druckgutträgers aus dem Kreislaufsystem der Druckvorrichtung sein. Eine Ausschusseinrichtung kann dadurch vorgesehen sein, dass das fehlerhaft positionierte Textil ordnungsgemäß durch die Einrichtungen der Druckvorrichtung geleitet wird, jedoch ein Behandeln beziehungsweise ein Bedrucken des Textils nicht vorgenommen wird. Ein solches ausgesondertes Textil wird demnach durch die einzelnen Einrichtungen der Druckvorrichtungen geleitet, ohne dass eine Behandlung des Textils insbesondere das Vorsehen eines Druckbildes auf dem Textil vorgenommen wird. Das Textil wird demnach nach Durchlaufen der einzelnen Einrichtungen der Druckvorrichtung, vorzugsweise unverändert, von dem Druckgutträger in gleicher Weise wie ein Textil mit einem Druckbild entfernt.According to a further development of the invention, it is particularly expedient that a sorting device is provided by means of which the textile, in particular with a positioning defect on the print material carrier, can be delivered to a reject area for corrected fixation of the textile on the print material carrier. If the textile is provided defectively on the print material carrier, so that error-free printing of the textile is prevented, the sorting device can feed the print material carrier to a reject area. As a result, the textile remains unprinted until its position on the print material carrier is corrected. A reject area can, for example, be a separate discharge of the print material carrier from the circulation system of the printing device. A reject device can be provided in that the incorrectly positioned textile is properly guided through the devices of the printing device, but no treatment or printing of the textile is carried out. Such a rejected textile is therefore guided through the individual devices of the printing devices without any treatment of the textile, in particular the provision of a printed image on the textile. After passing through the individual devices of the printing device, the textile is removed from the print substrate, preferably unchanged, in the same way as a textile with a printed image.

Die Sortiervorrichtung kann einen Positionierungsmangel insbesondere dadurch feststellen, dass bei einer Abstimmung der Position des mindestens einen Drucckopfs mit dem Druckbereich auf dem Textil die Verstelleinrichtung nicht in der Lage ist, ordnungsgemäß den Druckbereich zugestellt zu werden. Dies kann beispielsweise aufgrund einer mechanischen Beschränkung der Bewegung des Druckkopfs begründet sein.The sorting device can detect a positioning defect in particular if, when the position of the at least one print head is aligned with the printing area on the textile, the adjustment device is not able to be properly positioned in the printing area. This can be due, for example, to a mechanical restriction of the movement of the print head.

Die vorliegende Erfindung offenbart auch ein Verfahren gemäß Anspruch 11.The present invention also discloses a method according to claim 11.

Ein Grundgedanke des erfindungsgemäßen Verfahrens besteht darin, ein zu bedruckendes Textil auf einem Druckgutträger vorzusehen, welcher vorzugsweise positionsgenau auf einer Fördereinrichtung angeordnet werden kann. Das Textil kann einzelnen Druckeinrichtungen zugestellt werden, wobei zumindest zwischen einer ersten Druckeinrichtung und einer zweiten Druckeinrichtung eine Trocknung der Druckerfarbe der ersten Druckvorrichtung vorgenommen werden kann. Sollte das Textil weitere Behandlungsschritte erforderlich machen, kann bedarfsgerecht eine Anpassung der Druckvorrichtung beispielsweise mit zusätzlichen Druckeinrichtungen, Vorbehandlungseinrichtungen und/oder einer Fixierungseinrichtung, vorzugsweise nach der letzten Druckeinrichtung, vorgesehen werden. Für das erfindungsgemäße In-Line-Druckverfahren kann hierfür auf dem, vorzugsweise modularen, Maschinengrundkörper der Druckvorrichtung modular und flexibel anpassbar die jeweilige zu verwendende Vorrichtung für ein bedrucktes Textil angeordnet werden. Hierfür können einzelne Module des Grundkörpers ergänzt oder ausgetauscht werden, auf welchen zumindest einzelne Einrichtungen der Druckvorrichtung vorgesehen sein können. Alternativ oder ergänzend können unterschiedliche Vorrichtungen auf dem Grundkörper der Druckvorrichtung vorgesehen werden, wobei in Abhängigkeit von dem zu bedruckenden Textil einzelne Einrichtungen für das Druckverfahren zugeschaltet werden, wohingegen die übrigen Einrichtungen ausgeschaltet verbleiben. Grundsätzlich kann das zu bedruckende Textil mittels einer Fördereinrichtung den einzelnen Einrichtungen der Druckvorrichtung zugestellt werden, wobei vorzugsweise der Druckgutträger in einer Art Kreislaufsystem nach einem Entfernen von bedrucktem Textil zur Aufnahme von neuem zu bedruckenden Textil zur Verfügung gestellt werden kann. Hierbei kann das Kreislaufsystem insbesondere durch die Fördereinrichtung gebildet sein. Besonders bevorzugt weist der Grundkörper Module auf, auf welchen einzelne oder mehrere Einrichtungen der Druckvorrichtung vorgesehen werden können.A basic idea of the method according to the invention is to provide a textile to be printed on a print material carrier, which can preferably be arranged in a precise position on a conveyor device. The textile can be delivered to individual printing devices, whereby the printing ink of the first printing device can be dried at least between a first printing device and a second printing device. If the textile requires further treatment steps, the printing device can be adapted as required, for example with additional printing devices, pre-treatment devices and/or a fixing device, preferably after the last printing device. For the in-line printing method according to the invention, the respective device to be used for a printed textile can be arranged on the preferably modular machine base body of the printing device in a modular and flexibly adaptable manner. For this purpose, individual modules of the base body can be added or exchanged, on which at least individual devices of the printing device can be provided. can. Alternatively or additionally, different devices can be provided on the base body of the printing device, whereby, depending on the textile to be printed, individual devices for the printing process are switched on, whereas the other devices remain switched off. In principle, the textile to be printed can be delivered to the individual devices of the printing device by means of a conveyor device, whereby the print material carrier can preferably be made available in a type of circulatory system after the printed textile has been removed in order to receive new textile to be printed. In this case, the circulatory system can be formed in particular by the conveyor device. The base body particularly preferably has modules on which individual or multiple devices of the printing device can be provided.

Nach einer Weiterentwicklung der vorliegenden Erfindung ist es vorgesehen, dass das Textil nach dem Bedrucken von dem Druckträger entfernt wird und der Druckträger für eine erneute Verwendung einem Auflagebereich zugeführt wird. In dem Auflagebereich kann der Druckgutträger automatisch, insbesondere maschinell, und/oder manuell mit neuem Textil bestückt werden.According to a further development of the present invention, it is provided that the textile is removed from the printing medium after printing and the printing medium is fed to a support area for reuse. In the support area, the printing medium can be equipped with new textile automatically, in particular mechanically, and/or manually.

Für eine besonders bevorzugte Ausführungsform der vorliegenden Erfindung ist es vorgesehen, dass die Positionierung des Textils und eine Positionierung des mindestens einen Druckkopfs mittels eines optischen Sensors aufeinander abgeglichen werden. So kann eine Ausrichtung des Druckkopfs zu einem zu bedruckenden Bereich auf den Textil bestimmt werden. Mittels einer Verstelleinrichtung kann die Positionierung des Druckkopfs dann auf die Positionierung des Druckbereichs auf dem Textil angepasst werden.For a particularly preferred embodiment of the present invention, it is provided that the positioning of the textile and a positioning of the at least one print head are aligned with one another using an optical sensor. In this way, an alignment of the print head with respect to an area to be printed on the textile can be determined. Using an adjustment device, the positioning of the print head can then be adapted to the positioning of the printing area on the textile.

In der Zeichnung wird nachfolgend die Erfindung weiter erläutert. In den Figuren zeigen:

Fig. 1
eine erste Ausführungsform der erfindungsgemäßen Druckvorrichtung mit zwei Druckeinrichtungen und zwei Trocknungseinrichtungen,
Fig. 2
eine vergrößerte Darstellung des Druckbilds produzierenden Bereichs der Druckvorrichtung gemäß Fig. 1, und
Fig. 3
eine weitere Ausführungsform der erfindungsgemäßen Druckvorrichtung mit zwei Druckeinrichtungen, zwei Trocknungseinrichtungen und einer Vorbehandlungseinrichtung.
The invention is explained further below in the drawing. The figures show:
Fig.1
a first embodiment of the printing device according to the invention with two printing devices and two drying devices,
Fig.2
an enlarged view of the print image producing area of the printing device according to Fig.1 , and
Fig.3
a further embodiment of the printing device according to the invention with two printing devices, two drying devices and a pretreatment device.

Fig. 1 zeigt eine erfindungsgemäße Druckvorrichtung 10. Diese kann mindestens eins, vorzugsweise zwei Module I und II, aufweisen, auf welchen jeweils ein Teil der Druckeinrichtungen der Druckvorrichtung 10 vorgesehen sein kann. Das Modul I weist einen Teil des Maschinengrundkörpers auf, auf welchem ein Teil 30 der Fördereinrichtung angeordnet ist. Oberhalb des Teils 30 der Fördereinrichtung kann eine erste Druckvorrichtung 20 eine Zwischentrocknungseinrichtung 21 und/oder eine zweite Druckeinrichtung 22 angeordnet sein. Das Modul II kann einen weiteren Teil des Maschinengrundkörpers der Druckvorrichtung 10 aufweisen, wobei auf ihr ein Teil 31 der Fördereinrichtung vorgesehen sein kann. Auf dem Modul II kann eine Trocknungseinrichtung 23, insbesondere in Form eines Trocknungstunnels, vorgesehen sein. Die Anordnung der einzelnen Einrichtungen 20 bis 23 kann individuell über ein einzelnes Modul oder über eine Mehrzahl von Modulen verteilt sein. Auch kann ihre Anzahl und/oder Reihenfolge untereinander bedarfsgerecht angepasst werden. Durch den modularen Aufbau kann in einfacher Weise ein Teil der Einrichtungen aus der Druckvorrichtung entfernt oder weitere Module mit vorgesehenen Einrichtungen zum Herstellen eines bedruckten Textils bereitgestellt werden. Hierzu wird der entsprechende Teil der Druckvorrichtung in Form von einzelnen Modulen in die Druckvorrichtung eingefügt oder herausgenommen. Hinter der Trocknungseinrichtung 23 kann ein weiterer Teil 32 der Fördereinrichtung vorgesehen sein, welches vorzugsweise die Förderrichtung um einen Winkel, insbesondere 90°, verändert. Fig.1 shows a printing device 10 according to the invention. This can have at least one, preferably two modules I and II, on each of which a part of the printing devices of the printing device 10 can be provided. The module I has a part of the machine base body, on which a part 30 of the conveyor device is arranged. Above the part 30 of the conveyor device, a first printing device 20, an intermediate drying device 21 and/or a second printing device 22 can be arranged. The module II can have a further part of the machine base body of the printing device 10, on which a part 31 of the conveyor device can be provided. A drying device 23, in particular in the form of a drying tunnel, can be provided on the module II. The arrangement of the individual devices 20 to 23 can be distributed individually over a single module or over a plurality of modules. Their number and/or sequence can also be adapted to one another as required. Due to the modular design, part of the devices can be easily removed from the printing device or further modules with the devices provided for producing a printed textile can be provided. For this purpose, the corresponding part of the printing device is inserted into or removed from the printing device in the form of individual modules. A further part 32 of the conveying device can be provided behind the drying device 23, which preferably changes the conveying direction by an angle, in particular 90°.

Vorzugsweise in etwa parallel zu dem mindestens einen Modul der Druckvorrichtung kann ein vorzugsweise längeres Segment 33 der Fördereinrichtung vorgesehen sein, in welchem ein Rückführbereich 24 mit einer Auflagestation vorgesehen sein kann. In der Auflagestation können Druckgutträger 40, insbesondere welche mittels der Fördereinrichtung durch die einzelnen Einrichtungen der Druckeinrichtung entlang der vorgesehenen Module bewegt wurden, mit einem Textil bestückt werden. Im Rückführbereich können Druckgutträger von einem Endbereich der Druckvorrichtung hinter den Druckeinrichtungen zu einem Anfangsbereich der Druckvorrichtung vor den Druckeinrichtungen gefördert werden.Preferably approximately parallel to the at least one module of the printing device, a preferably longer segment 33 of the conveyor device can be provided, in which a return area 24 with a support station can be provided. In the support station, print material carriers 40, in particular which have been moved by means of the conveyor device through the individual devices of the printing device along the provided modules, can be equipped with a textile. In the return area, print material carriers can be conveyed from an end area of the printing device behind the printing devices to a start area of the printing device in front of the printing devices.

In der Auflagestation können auch eine erfindungsgemäße Projektionseinrichtung, ein optischer Sensor und/oder eine Verstelleinrichtung vorgesehen sein. In Flussrichtung der Druckgutträger kann hinter dem Rückführbereich, vorzugsweise im Teilbereich 33 oder 34 der Fördereinrichtung ein Staubereich für Druckgutträger vorgesehen sein, aus welchem der Druckgutträger mit Textil den Einrichtungen der Druckvorrichtung zustellbar ist. Im Bereich 33 der Fördereinrichtungen sind auf der Oberfläche Pfeile dargestellt, welche eine Förderrichtung der Druckgutträger darstellen können. Insbesondere durch die Änderung der Orientierung der Förderrichtung zwischen den Teilbereichen 31 und 32, 32 und 33, 33 und 34 und 34 und 30 kann vorzugsweise ein geschlossenes Kreislaufsystem der Fördereinrichtung gebildet sein, wodurch Druckgutträger kontinuierlich den einzelnen Einrichtungen der Druckvorrichtung zustellbar sind.A projection device according to the invention, an optical sensor and/or an adjustment device can also be provided in the support station. In the flow direction of the printing material carriers, a storage area for printing material carriers can be provided behind the return area, preferably in the partial area 33 or 34 of the conveyor device, from which the printing material carrier with textile can be delivered to the devices of the printing device. In the area 33 of the conveyor devices, arrows are shown on the surface, which can represent a conveying direction of the printing material carriers. In particular, by changing the orientation of the conveying direction between the partial areas 31 and 32, 32 and 33, 33 and 34 and 34 and 30, a closed circuit system of the conveyor device can preferably be formed, whereby printing material carriers can be continuously delivered to the individual devices of the printing device.

Fig. 2 zeigt eine vergrößerte Darstellung der Module I und II der Druckvorrichtung 10 mit den Einrichtungen 20 bis 23, wie sie bereits mit Bezug auf Fig. 1 beschrieben wurden. Wie besonders deutlich auf Fig. 2 hervorgeht, kann erfindungsgemäß jedes Modul einen separaten Teil der Fördereinrichtung aufweisen, welcher bevorzugt als Umlaufförderer ausgebildet ist. Durch Aneinanderreihung der einzelnen Umlaufförderer kann der mindestens eine Druckgutträger von einem Modul an das nächste Modul mittels der Fördereinrichtung unterbrechungsfrei übergeben werden. Sollte eine Änderung der Druckvorrichtung notwendig sein, um den Anforderungen eines Textils und/oder eines aufzudruckenden Druckbildes Rechnung zu tragen, kann die Druckvorrichtung um eine beliebige Anzahl von in sich abgeschlossenen Modulen erweitert, ergänzt oder reduziert werden. Fig.2 shows an enlarged view of the modules I and II of the printing device 10 with the devices 20 to 23, as already described with reference to Fig.1 As is particularly evident on Fig.2 According to the invention, each module can have a separate part of the conveyor device, which is preferably designed as a circulating conveyor. By lining up the individual circulating conveyors, the at least one print material carrier can be transferred from one module to the next module without interruption by means of the conveyor device. If a change to the printing device is necessary in order to take into account the requirements of a textile and/or a print image to be printed, the printing device can be expanded, supplemented or reduced by any number of self-contained modules.

Die in den Figuren dargestellte Anordnung von Einrichtungen auf den einzelnen Modulen ist nur eine von vielen möglichen Anordnungen. Grundsätzlich könnte die in der Fig. 2 dargestellte Verteilung von zwei Druckeinrichtungen und einem Trockner auf Modul I und einen weiteren Trockner auf Modul II auch so abgeändert werden, dass jedes Modul beispielsweise jeweils einen Trockner und eine Druckvorrichtung aufweist. Vorzugsweise ist die Anordnung der einzelnen Einrichtungen auf den Modulen so ausgebildet, dass der Austausch/Ergänzung von einzelnen Modulen beziehungsweise das Entfernen von einzelnen Modulen jeweils eine sinnvolle Kombination von Einrichtungen ergibt. Sinnvoll ist eine Kombination von Einrichtungen dann, wenn sich mit dieser zumindest eine Art von Textilen mit zumindest einem Druckbild vollständig bedrucken lässt. Wird die Anzahl der Module der Druckvorrichtung 10 angepasst, kann die Länge des Segments 33 der Fördereinrichtung bedarfsgerecht angepasst werden. Durch entsprechendes, vorzugsweise bündiges Anordnen der Fördereinrichtungssegmente 32 und 34, kann somit bedarfsgerecht ein geschlossenes Kreislaufsystem, insbesondere für das Fördern von Druckgutträgern, gebildet sein.The arrangement of devices on the individual modules shown in the figures is only one of many possible arrangements. In principle, the arrangement shown in the Fig.2 The distribution of two printing devices and a dryer on module I and another dryer on module II shown can also be modified so that each module has, for example, a dryer and a printing device. The arrangement of the individual devices on the modules is preferably designed in such a way that the exchange/addition of individual modules or the removal of individual modules results in a sensible combination of devices. A combination of devices is sensible if if it can be used to completely print at least one type of textile with at least one print image. If the number of modules of the printing device 10 is adjusted, the length of the segment 33 of the conveyor device can be adjusted as required. By arranging the conveyor device segments 32 and 34 accordingly, preferably flush, a closed circuit system can be formed as required, in particular for conveying printing material carriers.

Fig. 3 zeigt eine weitere Ausführungsform 50 der erfindungsgemäßen Druckvorrichtung, welches ein weiteres Modul III aufweist, welches den Modulen I und II vorgeschaltet sein kann. Grundsätzlich kann eine Erweiterung auch hinter dem Modul II angeordnet werden, soweit dies drucktechnisch Sinn macht. Nach dem Ausführungsbeispiel der Fig. 3 ist das Modul III ebenfalls mit einem Teil des Grundkörpers der Druckvorrichtung 50 gebildet, auf welchen ein Teilsegment 35 der Fördereinrichtung gebildet ist, oberhalb welcher eine Vorbehandlungseinrichtung vorgesehen sein kann. Die Vorbehandlungseinrichtung kann insbesondere eine Sprühstation 27, eine Trocknungseinheit 28 und/oder eine Pressstation 29 aufweisen. Besonders bevorzugt sind diese Stationen in beschriebener Weise nacheinander in Förderrichtung angeordnet. Durch die Vorbehandlungseinrichtung kann das Textil für die Aufnahme von Druckerfarbe auf seiner Oberfläche vorbereitet werden, wodurch einem Zerfließen oder Eindringen der Druckerfarbe in das Gewebe des Textils vorgebeugt sein kann. Das Ausführungsbeispiel gemäß Fig. 3 kann ebenso die Einrichtungen 20 bis 23, nämlich die beiden Druckeinrichtungen und Trocknungseinrichtungen sowie den Rückführbereich 24 mit der Auflagestation und den Fördereinrichtungssegmenten 30 bis 34 aufweisen. Diese können ebenfalls dieselben Eigenschaften aufweisen, wie sie mit Bezug auf Fig. 1 und/oder 2 beschrieben wurden. Gegenüber der Ausführungsform gemäß Fig. 1 ist der Segmentbereich 33 der Fördereinrichtung gemäß Fig. 3 seiner Länge nach angepasst, insbesondere verlängert, wodurch ein nahtloser Transport der Druckgutträger im Kreislaufsystem durch die Module III, I und II und den Rückführbereich mit der Auflagestation ermöglicht ist. Fig.3 shows a further embodiment 50 of the printing device according to the invention, which has a further module III, which can be arranged upstream of modules I and II. In principle, an extension can also be arranged behind module II, as long as this makes sense from a printing point of view. According to the embodiment of the Fig.3 the module III is also formed with a part of the base body of the printing device 50, on which a partial segment 35 of the conveying device is formed, above which a pretreatment device can be provided. The pretreatment device can in particular have a spray station 27, a drying unit 28 and/or a pressing station 29. These stations are particularly preferably arranged one after the other in the conveying direction in the manner described. The pretreatment device can prepare the textile for the absorption of printing ink on its surface, whereby the printing ink can be prevented from running or penetrating the fabric of the textile. The embodiment according to Fig.3 can also have the devices 20 to 23, namely the two printing devices and drying devices as well as the return area 24 with the support station and the conveyor device segments 30 to 34. These can also have the same properties as those described with reference to Fig.1 and/or 2. Compared to the embodiment according to Fig.1 the segment area 33 of the conveyor is in accordance with Fig.3 adapted in terms of its length, in particular extended, which enables seamless transport of the printing material carriers in the circulation system through modules III, I and II and the return area with the support station.

Claims (14)

  1. In-line printing device for printing at least one textile with a printed image, having
    - a base body on which a conveying device is provided, wherein the at least one textile is provided on at least one printed material carrier (40), which holds the textile on the conveying device,
    - a pre-treatment device on the base body, which has a spraying station, a drying device and a pressing station and is designed to pre-treat a surface of the textile for printing,
    - at least one first printing device (20, 22), which is provided on the base body and is designed to print the textile with an ink, and
    - a drying device (23), which is provided on the base body, is arranged downstream of the printing device (20, 22) in the conveying direction and is designed to dry the print on the finished printed textile,
    characterised in that
    - at least one second printing device (20, 22) is provided in addition to the at least one first printing device (20), each of which has at least one digital print head and is designed to produce in each case a part of the intended printed image,
    - in that an intermediate drying device (21) is provided, which is arranged on the base body between the at least one first printing device (20) and the at least one second printing device (22) and is designed to dry the ink of the at least one first printing device (20) on the textile before the ink of the at least one second printing device (22) is applied.
  2. In-line printing device according to claim 1,
    characterised in that
    - the conveying device is designed as a circulation system that provides the at least one printed material carrier (40) for reuse after passing through the individual devices (20, 21, 22, 23), wherein the textile can be fed to the individual devices (20, 21, 22, 23) of the printing device (10) with the printed material carrier (40).
  3. In-line printing device according to any one of claims 1 to 2, characterised in that
    - the conveying device has a return area in which the at least one printed material carrier (40) can be loaded with new textile.
  4. In-line printing device according to claim 3,
    characterised in that
    - in the conveying direction downstream of the return area, a storage area for printed material carriers (40) is provided, from which the at least one printed material carrier (40) can be fed with textile to the devices (20, 21, 22, 23) of the printing device (10).
  5. In-line printing device according to any one of claims 1 to 4, characterised in that
    - the conveying device has at least one circulating conveyor.
  6. In-line printing device according to any one of claims 1 to 5, characterised in that
    - a loading station is provided, by means of which the at least one printed material carrier (40) can be loaded with a textile to be printed and can be provided on the conveyor device.
  7. In-line printing device according to claim 6,
    characterised in that
    - a projection device is provided in the area of the loading station, which projects an area to be printed onto the textile, by means of which the textile can be positioned on the printed material carrier (40).
  8. In-line printing device according to any one of claims 6 or 7,
    characterised in that
    - an optical sensor is provided for matching the position of the at least one print head with the print area on the textile, which adjusts the positioning of the textile with a positioning of the print head.
  9. In-line printing device according to claim 8,
    characterised in that
    - an adjustment device is provided that adapts the positioning of the print head to the positioning of the print area.
  10. In-line printing device according to any one of claims 1 to 9,
    characterised in that
    - a sorting device is provided with which the textile, in particular with a positioning defect on the printed material carrier (40), can be fed to a reject area for a corrected fixing of the textile on the printed material carrier (40).
  11. Method for printing a textile with a printed image using the in-line method, in particular with a device (10) according to any one of claims 1 to 10, in which
    - at least one textile is conveyed on a conveying device which is arranged on a machine base body, wherein at least one textile is arranged on at least one printed material carrier (40) which holds the textile on the conveying device,
    - the textile is fed along the conveying device to at least one first printing device (20, 22), which is provided on the base body and prints the textile with a colour, and
    - the printed textile is fed along the conveying device to a drying device (23), which is provided on the base body and arranged downstream of the printing device (20, 22) in the conveying direction and dries the print on the finished printed textile,
    characterised in that
    - the textile is fed to at least one second printing device (20, 22) in addition to the at least one first printing device (20), each of which has at least one digital print head,
    - in that the at least one first printing device (20) and the at least one second printing device (22) each produce a part of the intended printed image, and
    - in that the textile is fed to an intermediate drying device (21), which is provided on the base body, arranged between the at least one first printing device (20) and the at least one second printing device (22) and dries the ink of the at least one first printing device (20) on the textile before the ink of the at least one second printing device (22) is applied.
  12. Method for printing a textile according to claim 11,
    characterised in that
    - the textile is removed from the printed material carrier (40) after printing and the printed material carrier (40) is fed to a loading area for reuse.
  13. Method for printing a textile according to any one of claims 11 or 12, characterised in that
    - the printed material carrier is loaded with textile in the loading area.
  14. Method for printing a textile according to any one of claims 11 to 13, characterised in that
    - the positioning of the textile and a positioning of the at least one print head are synchronised on each other by means of an optical sensor.
EP17180430.5A 2017-07-10 2017-07-10 In-line printing device and method for printing a textile according to the in-line process Active EP3427962B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17180430.5A EP3427962B1 (en) 2017-07-10 2017-07-10 In-line printing device and method for printing a textile according to the in-line process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17180430.5A EP3427962B1 (en) 2017-07-10 2017-07-10 In-line printing device and method for printing a textile according to the in-line process

Publications (3)

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EP3427962A1 EP3427962A1 (en) 2019-01-16
EP3427962C0 EP3427962C0 (en) 2024-04-10
EP3427962B1 true EP3427962B1 (en) 2024-04-10

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3738778B1 (en) 2019-05-14 2023-06-28 Angelo Schiestl Printer and method for printing textiles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009056656A (en) * 2007-08-30 2009-03-19 Mimaki Engineering Co Ltd Printer
EP2130680B1 (en) * 2008-06-02 2012-09-05 Machines Highest Mechatronic GmbH Printing press and method for printing print goods

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