WO2021199872A1 - 搬送装置、印刷装置及び搬送方法 - Google Patents

搬送装置、印刷装置及び搬送方法 Download PDF

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Publication number
WO2021199872A1
WO2021199872A1 PCT/JP2021/008225 JP2021008225W WO2021199872A1 WO 2021199872 A1 WO2021199872 A1 WO 2021199872A1 JP 2021008225 W JP2021008225 W JP 2021008225W WO 2021199872 A1 WO2021199872 A1 WO 2021199872A1
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WO
WIPO (PCT)
Prior art keywords
base material
transport
receiving member
water
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/008225
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English (en)
French (fr)
Japanese (ja)
Inventor
憲亮 毎田
浅野　裕次
荒木　実
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
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Fujifilm Corp
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Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Priority to JP2022511691A priority Critical patent/JP7413510B2/ja
Publication of WO2021199872A1 publication Critical patent/WO2021199872A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/14—Advancing webs by direct action on web of moving fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing webs

Definitions

  • This disclosure relates to a transport device, a printing device, and a transport method.
  • Japanese Patent Application Laid-Open No. 2006-341954 discloses a turn bar that floats a base material from a transport surface by injecting gas from a plurality of injection ports provided on the transport surface and transports the substrate in a non-contact manner.
  • Japanese Patent Application Laid-Open No. 2019-115209 describes a technique for suppressing the height of a printing apparatus by using a non-contact conveying apparatus.
  • the non-contact transfer device it is required to be able to transfer a base material of any material, thickness and width according to the user's application.
  • the rigidity of the base material changes depending on the material, thickness, and width of the base material, the amount of the base material floating from the transport surface also changes if the gas injection amount is not adjusted. That is, the transport distances of the base materials are different, and it may be difficult to stably transport the base materials.
  • the gas injection amount cannot be adjusted appropriately. It may be difficult to stably transport the base material.
  • the gas injection amount may not be appropriately adjusted due to factors such as a change in the gas supply amount to the non-contact transfer device due to the usage environment and deterioration over time, and clogging of the injection port and the filter.
  • the present disclosure provides a transport device, a printing device, and a transport method capable of stably transporting a base material.
  • the first aspect of the present disclosure is a transport device, which changes the transport direction by injecting air from an injection surface formed in a substantially arc shape along a transfer path to raise the base material from the injection surface.
  • it includes a non-contact transport portion that transports the base material in a non-contact state, and a receiving member provided at a position facing at least a region including the apex of the transport direction switching portion on the injection surface.
  • the surface of the receiving member facing the base material is coated with a material having a friction coefficient lower than that of the base material of the receiving member, and at least a surface treatment for reducing the friction coefficient is performed.
  • One of the processes may be applied.
  • the receiving member may be configured to include a roller.
  • the fourth aspect of the present disclosure may further include a roller provided on the downstream side of the transport path with respect to the receiving member in the above aspect.
  • the amount of air injected may be smaller on the downstream side than on the upstream side of the transport path.
  • the amount of air injected may be smaller at the end than at the center in the direction intersecting the transport direction of the injection surface.
  • the temperature of the air may be higher than room temperature.
  • the temperature of the receiving member may be adjustable.
  • the temperature of the air may be higher than the temperature of the receiving member.
  • the tenth aspect of the present disclosure is a printing device provided with the transfer device of the above aspect, and includes an image forming unit that ejects ink to a base material conveyed by the transfer device to form an image.
  • the eleventh aspect of the present disclosure is a transfer method, in which air is injected from an injection surface formed in a substantially arc shape along a transfer path to raise the base material from the injection surface, thereby changing the transfer direction. At the same time, the base material is conveyed in a non-contact state, and the floating amount of the base material is limited by a receiving member provided at a position facing at least a region including the apex of the transfer direction switching portion on the injection surface.
  • the base material can be stably transported.
  • the printing device 1 is a printing device that prints an image on a web-shaped base material 10 which is an example of a non-permeable base material by a single pass method.
  • the printing apparatus 1 manufactures a back-printed printed matter that is visible from the second surface opposite to the first surface on which the image is printed on the base material 10.
  • the unwinding portion 20, the precoat portion 30, the image forming portion 50, the drying portion 80, and the winding portion 90 are arranged in this order from the upstream side of the transport path of the base material 10. And are configured with. Further, the printing apparatus 1 includes a plurality of rollers 22 which are an example of a transport unit that transports the base material 10 from the unwinding portion 20 to the winding portion 90 along the transport path.
  • the base material 10 is a transparent medium used for flexible packaging, which is composed of a thin resin having a heat resistant temperature of about 100 degrees or less and has impermeable properties.
  • Examples of the material of the base material 10 include OPP (Oriented PolyPropylene) and PET (Polyethylene terephthalate).
  • the term “impermeable” means that the base material 10 has impermeableness to the aqueous primer 12 and the aqueous ink 14 described later.
  • “Flexible packaging” refers to packaging made of a material that deforms depending on the shape of the article to be packaged.
  • Transparent means that the transmittance of visible light is 30% or more and 100% or less, preferably 70% or more and 100% or less.
  • the unwinding portion 20 includes an unwinding roll 24.
  • the unwinding roll 24 is a reel in which the base material 10 before transportation is wound in a roll shape on a reel that is rotatably supported.
  • the base material 10 unwound from the unwinding roll 24 is conveyed to the precoat portion 30.
  • the precoat portion 30 includes a coating roller 32, an opposing roller 34, and a precoat drying portion 36 in this order from the upstream side of the transport path.
  • a chamber doctor type coater is configured by the coating roller 32 and the opposing roller 34.
  • the aqueous primer 12 is supplied to the surface of the coating roller 32 from a storage tank (not shown) in which the aqueous primer 12 is stored.
  • the coating roller 32 sandwiches the base material 10 conveyed from the unwinding portion 20 between the coating roller 32 and the opposing roller 34, and brings the surface to which the aqueous primer 12 is supplied into contact with the first surface 10a of the base material 10. Then, the aqueous primer 12 is applied to the first surface 10a of the base material 10.
  • the base material 10 coated with the aqueous primer 12 is conveyed to the precoat drying section 36.
  • the water-based primer 12 is a liquid containing water and a component that causes an agglutination-thickening reaction such as agglutination, insolubilization, and / or thickening of the color material component in the water-based ink 14 (details will be described later).
  • the amount of the water-based primer 12 applied is about 1/10 of the amount of the water-based ink 14 applied by the image forming unit 50.
  • the precoat drying section 36 dries the aqueous primer 12 coated on the first surface 10a of the base material 10 by the coating roller 32 until the above-mentioned coagulation thickening reaction sufficiently proceeds to a dry state.
  • a hot air heater that blows warm air can be applied.
  • the base material 10 coated with the aqueous primer 12 is conveyed to the image forming unit 50 while the aqueous primer 12 is still dry.
  • the image forming unit 50 includes a transport device 60, a printing unit 54, and a transport device 60 in this order from the upstream side of the transport path.
  • the image forming unit 50 is an example of a second water-based ink after ejecting the water-based color ink 14A, which is an example of the first water-based ink, onto the first surface 10a of the base material 10 conveyed from the precoat unit 30.
  • An image is formed by ejecting a certain water-based white ink 14B.
  • the transport device 60 on the upstream side transports the base material 10 to the printing unit 54 in a non-contact state while changing the transport direction of the base material 10.
  • the transport device 60 can transport the base material 10 without touching the dry water-based primer 12 applied to the first surface 10a of the base material 10, and in order to suppress the height of the printing device 1. Can be used. The detailed configuration of the transport device 60 will be described later.
  • the printing unit 54 includes an inkjet head for printing a color image by applying the water-based color ink 14A and the water-based white ink 14B to the base material 10.
  • heads 52K, 52C, 52M, 52Y, 52W1 and 52W2 are shown as an example of an inkjet head.
  • heads 52K, 52C, 52M, 52Y, 52W1 and 52W2 are not distinguished, they are simply referred to as the head 52.
  • water-based color ink 14A and the water-based white ink 14B are not distinguished, they are simply referred to as water-based ink 14.
  • the head 52 is composed of a line-type recording head that can be printed by scanning once with respect to the conveyed base material 10.
  • the head 52 is configured by connecting a plurality of head modules in the width direction of the base material 10.
  • a plurality of nozzles, which are ejection ports for the water-based ink 14, are two-dimensionally arranged on the nozzle surface of the head module.
  • the water-based ink 14 is supplied to each of the heads 52 from an ink tank (not shown) in which the water-based ink 14 of the corresponding color is stored.
  • the head 52 ejects droplets of the water-based ink 14 toward the first surface 10a of the substrate 10 to be conveyed, and the ejected ink droplets adhere to the substrate 10, so that the first surface of the substrate 10 is first.
  • the image is printed on the surface 10a of.
  • the heads 52K, 52C, 52M and 52Y are superposed on the aqueous primer 12 applied to the first surface 10a of the base material 10, respectively, and are black (K), cyan (C), magenta (M) and yellow (Y), respectively.
  • a color image is formed by ejecting the water-based color ink 14A of.
  • the heads 52W1 and 52W2 form a white background image by superimposing the water-based color ink 14A discharged on the first surface 10a of the base material 10 and discharging the water-based white ink 14B, respectively.
  • the water-based color ink 14A and the water-based white ink 14B are not always discharged to all the regions on the first surface 10a of the base material 10. For example, on the first surface 10a of the base material 10, even if there is a region where the water-based color ink 14A is not discharged, the water-based white ink 14B is discharged directly above the water-based primer 12, and only a white background image is formed. good.
  • the water-based color ink 14A refers to an ink in which water and a coloring material such as a dye or pigment are dissolved or dispersed in a solvent soluble in water.
  • the water-based white ink 14B is a water-based ink containing a white coloring material, and is, for example, an ink containing 5% by weight or more and 15% by weight or less of titanium oxide.
  • problems such as bleeding of the coloring material dispersed in the water-based ink 14, mixing of the water-based ink 14 of each color, and drip interference due to liquid coalescence at the time of landing of the ink droplets.
  • the base material 10 on which the image is printed on the first surface 10a by the printing unit 54 is transported to the drying unit 80 in a non-contact state while the transport direction is changed by the transport device 60 on the downstream side. According to the transport device 60, the base material 10 can be transported without touching the water-based ink 14 ejected to the first surface 10a of the base material 10, which affects the image formed on the first surface 10a. None give.
  • the image is affected from the side of the base material 10 on which the water-based ink 14 is applied (first surface 10a). It is conceivable to heat in a non-contact manner so that there is no such thing.
  • the water-based color ink 14A and the water-based white ink 14B having different physical characteristics are laminated on the base material 10.
  • the upper layer water-based white ink 14B dries to form a film before the lower layer water-based color ink 14A dries, which hinders the drying of the water-based color ink 14A. It may end up.
  • the water-based color ink 14A is not sufficiently dried, it becomes difficult to fix the water-based color ink 14A and the water-based white ink 14B on the base material 10. Although this problem can be solved by lowering the heating temperature, it is not preferable because the time required for drying increases.
  • the water-based color ink 14A and the water-based white ink 14B are heated from the side of the second surface 10b of the base material 10 via the base material 10.
  • a non-permeable base material having a heat resistant temperature of about 100 degrees or less is applied as the base material 10.
  • the drying unit 80 heats the base material 10 conveyed from the image forming unit 50 from both sides of the base material 10, so that the water-based ink 14 ejected to the base material 10 is discharged.
  • FIG. 2 is an enlarged view of the range A in the dry portion 80 of FIG. A water-based primer 12, a water-based color ink 14A, and a water-based white ink 14B are laminated on the first surface 10a of the base material 10.
  • the drying portion 80 is heated from the side of the second surface 10b opposite to the first surface 10a of the base material 10 at a heating temperature equal to or lower than the heat resistant temperature of the base material 10.
  • a heating drum 82 is provided.
  • the drying unit 80 uses a plurality of blower nozzles 84 as an example of a second heating mechanism that blows air having a temperature equal to or higher than the heating temperature of the first heating mechanism from the side of the first surface 10a of the base material 10. Be prepared.
  • the plurality of blower nozzles 84 are arranged along the outer circumference of the heating drum 82 at positions facing the heating drum 82 with a transport path interposed therebetween.
  • the surface of the heating drum 82 comes into contact with the second surface 10b of the base material 10. As shown by the black arrows in FIG. 2, the heat generated from the heating drum 82 reaches the layer of the water-based ink 14 via the base material 10, and particularly promotes the drying of the water-based color ink 14A.
  • the surface temperature of the heating drum 82 is adjusted to, for example, 50 degrees.
  • a heat source for heating the surface of the heating drum 82 for example, the heat of hot water flowing through the circulation flow path provided in the heating drum 82 can be used.
  • the blower nozzle 84 is arranged on the side of the first surface 10a of the base material 10 in a non-contact manner with the layer of the water-based white ink 14B. As shown by the white arrows in FIG. 2, the wind emitted from the blower nozzle is blown onto the layer of the water-based ink 14, and particularly accelerates the drying of the water-based white ink 14B.
  • the blower nozzle 84 is composed of, for example, a slit nozzle that blows warm air of 80 degrees.
  • FIG. 3A the base material 10 was laminated on the base material 10 from the heating drum 82 and the blow nozzle 84 at each time point while the base material 10 was transported from the point P to the point Q on the transfer path shown in FIG. It is a figure which shows the amount of heat transferred to the water-based ink 14.
  • FIG. 3B the water-based ink 14 laminated on the base material 10 from the heating drum 82 and the blow nozzle 84 while the base material 10 is transported from the point P to the point Q on the transfer path shown in FIG. It is a figure which shows the total amount of heat transferred to.
  • FIGS. 3A and 3B the amount of heat transferred from the heating drum 82 to the water-based ink 14 is shown by a broken line, and the amount of heat transferred from the blower nozzle 84 to the water-based ink 14 is shown by a solid line.
  • the blower nozzle 84 blows air having a temperature equal to or higher than the heating temperature of the heating drum 82.
  • the time for which the water-based ink 14 is heated by the heating drum 82 is longer than the time for which the water-based ink 14 is heated by the blower nozzle 84.
  • the "time during which the water-based ink 14 is heated by the heating drum 82” means the time during which the base material 10 and the heating drum 82 are in contact with each other.
  • the “time during which the water-based ink 14 is heated by the blower nozzle 84” means the total time during which the warm air emitted from the blower nozzle 84 hits at any point of the base material 10.
  • the total amount of heat transferred from the heating drum 82 to the water-based ink 14 is larger than the total amount of heat transferred from the blower nozzle 84 to the water-based ink 14.
  • the heating drum 82 has a lower heating temperature than the blower nozzle 84, but has a longer heating time and a larger total amount of heat to be transferred. Therefore, the air-blowing nozzle 84 can accelerate the drying of the water-based white ink 14B, and the heating drum 82 can sufficiently accelerate the drying of the water-based color ink 14A.
  • the heating means using warm air such as the blower nozzle 84 usually consumes more power than the heating drum 82.
  • the time for heating the water-based ink 14 by the blower nozzle 84 is shorter than the time for heating the water-based ink 14 by the heating drum 82, so that the power consumption is suppressed. be able to.
  • the temperature of the wind blown by the blower nozzle 84 may be higher than the heat resistant temperature of the base material 10. Since the temperature of the second surface 10b of the base material 10 is limited to the heat resistant temperature or lower by the heating drum 82, even if the temperature of the air blown by the blower nozzle 84 is made higher than the heat resistant temperature of the base material 10 to some extent, It is suppressed that the temperature of the base material 10 itself becomes higher than the heat resistant temperature. As the temperature of the air blown by the blower nozzle 84 is raised within the range in which the base material 10 is not deformed, the time required for drying the water-based ink 14 can be shortened.
  • the first heating mechanism is not limited to the heating drum 82 described above, and various heating sources capable of heating from the side of the second surface 10b of the base material 10 at a heating temperature equal to or lower than the heat resistant temperature of the base material 10.
  • various heating sources capable of heating from the side of the second surface 10b of the base material 10 at a heating temperature equal to or lower than the heat resistant temperature of the base material 10.
  • a contact heating type heater having a heating surface such as a heating roll and a heating belt in contact with the second surface 10b of the base material 10 and having a surface temperature of the heating surface equal to or lower than the heat resistant temperature of the base material 10 is applied. You may.
  • a non-contact heating type heater such as a blower nozzle for blowing air having a temperature equal to or lower than the heat resistant temperature of the base material 10 may be used.
  • the base material 10 on which the water-based ink 14 has been dried by the drying unit 80 is conveyed to the winding unit 90.
  • the take-up unit 90 includes a take-up roll 94.
  • the take-up roll 94 is a reel in which the base material 10 after image formation is wound in a roll shape on a reel supported rotatably.
  • the printing apparatus 1 has a first surface on a transport portion for transporting the impermeable base material along a transport path and a first surface of the non-permeable base material.
  • An image forming portion that forms an image by ejecting a second water-based ink after ejecting the water-based ink, and a first image forming portion that is arranged on the downstream side of the transport path from the image forming portion and is ejected onto the impermeable substrate.
  • a drying portion for heating and drying the second water-based ink.
  • the drying portion has a first heating mechanism that heats from the side of the second surface opposite to the first surface of the impermeable substrate at a heating temperature equal to or lower than the heat resistant temperature of the impermeable substrate.
  • a second heating mechanism for blowing air at a temperature equal to or higher than the heating temperature of the first heating mechanism from the side of the first surface of the impermeable substrate is provided.
  • the heating drum 82 by heating the heating drum 82 from the side of the second surface 10b of the base material 10 at a heating temperature equal to or lower than the heat resistant temperature of the base material 10, deformation of the base material 10 is prevented, and particularly the water-based color of the lower layer is formed. Accelerates the drying of ink 14A. Further, the blower nozzle 84 blows air at a temperature equal to or higher than the heating temperature of the heating drum 82 from the side of the first surface 10a of the base material 10, thereby accelerating the drying of the water-based white ink 14B in the upper layer.
  • the time required for drying the water-based ink 14 is shortened while preventing the impermeable base material 10 on which the plurality of water-based inks 14 are laminated from being deformed. be able to.
  • an example of using the four color water-based color inks 14A of K, C, M and Y is shown, but the type and number of colors are not limited to this.
  • an inkjet head that ejects light color inks such as light magenta and light cyan, special color inks such as green, orange, and violet, clear ink, and metallic ink may be added.
  • the arrangement order of the heads 52 of each color is not limited.
  • two heads 52W1 and 52W2 are used as the head 52 for discharging the water-based white ink 14B, but the present invention is not limited to this.
  • the head 52 for discharging the water-based white ink 14B only one head 52 may be used, or three or more heads 52 may be used.
  • Transport device Next, an example of the configuration of the transport device 60 according to this exemplary embodiment will be described with reference to FIGS. 4 to 11.
  • the transport device 60 is a device that transports an arbitrary base material other than the printing device 1. Can be used in.
  • FIG. 4 is a perspective view showing the configuration of the transport device 60.
  • the transport device 60 includes a non-contact transport unit 62 and a receiving member 40 arranged so as to face the non-contact transport unit 62 with a gap.
  • FIG. 5 is a perspective view showing a detailed configuration of the non-contact transport unit 62.
  • the non-contact transport unit 62 constitutes a front surface, a back surface, and a lower surface, and constitutes a transport plate 64 formed in a substantially arc shape along a transport path, and two side plates 66 that form a side surface and cover both ends of the transport plate 64. And a top plate 68 that constitutes the upper surface and covers the upper end of the transport plate 64.
  • the transport plate 64 is composed of a curved surface portion 64A curved in an arc shape and a flat surface portion 64B extending from both ends of the arc of the curved surface portion 64A.
  • the transport plate 64 corresponds to an injection surface that injects air onto the base material 10.
  • a plurality of injection ports 64C which are circular through holes, are arranged on the entire surface of the curved surface portion 64A and the flat surface portion 64B.
  • the inside of the non-contact transport unit 62 is divided into three rooms 72A, 72B and 72C by two partition plates 70, and the air flow between the rooms is blocked. Further, the top plate 68 is provided with air ducts 74A, 74B and 74C for supplying air to each of the three rooms 72A, 72B and 72C. Blowers (not shown) are connected to the air ducts 74A, 74B and 74C, respectively.
  • the air supplied from the blower to the air ducts 74A, 74B and 74C is injected from the injection port 64C.
  • the temperature of the air blown out from the injection port 64C is room temperature.
  • the base material 10 floats from the injection surface by the air injected from the injection port 64C, and is conveyed to the non-contact transfer unit 62 in a non-contact state.
  • the base material 10 when the base material 10 is transported using such a non-contact transport unit 62, it is required that the base material 10 of an arbitrary material, thickness and width can be transported according to the user's application. ..
  • the rigidity of the base material 10 changes according to the material, thickness and width of the base material 10
  • the injection amount of air injected from the non-contact transport portion 62 if the injection amount of air injected from the non-contact transport portion 62 is not adjusted, the base material 10 from the injection surface The amount of levitation also changes. That is, the transport distances of the base materials 10 are different, and it may be difficult to stably transport the base materials 10.
  • the air injection amount can be appropriately adjusted.
  • the air injection amount may not be adjusted appropriately due to factors such as changes in the amount of air supplied from the blower due to the usage environment and deterioration over time, and clogging of the injection port 64C and the filter (not shown). be.
  • the base material 10 is provided with a receiving member 40 provided at a position facing at least a region including the apex of the transfer direction switching portion of the base material 10 on the injection surface. Limit the amount of levitation.
  • a receiving member 40 provided so as to cover the entire injection surface (conveying plate 64) of the non-contact conveying portion 62 will be described.
  • the receiving member 40 for example, a member made of a metal such as stainless steel and a resin of PE (Polyethylene) or POM (Polyacetal) can be used.
  • FIG. 6 is a schematic view showing a transport path of the base material 10 by the transport device 60.
  • a layer of the water-based color ink 14A and a layer of the water-based white ink 14B are formed on the first surface 10a of the base material 10.
  • the layer of the aqueous primer 12 is omitted.
  • the black arrow indicates the transport direction of the base material 10.
  • the white arrow indicates the direction of the air injected from the non-contact transport unit 62.
  • the amount of air injected from the non-contact transport unit 62 shall be adjusted so that the floating amount of the base material 10 is maximized.
  • the base material 10 can be conveyed without contacting the layer of the water-based color ink 14A and the layer of the water-based white ink 14B.
  • the floating amount of the base material 10 is limited by the receiving member 40. Therefore, even if the material, thickness, and width of the base material 10 are changed, the transport distance can be made uniform without adjusting the air injection amount.
  • the “vertex of the portion where the transfer direction of the base material 10 is switched” indicates the apex B of the portion where the direction of the transfer direction in the Z direction is switched from downward to upward.
  • the base material 10 is transported to the gap between the non-contact transport portion 62 and the receiving member 40. , Air enters between the base material 10 and the receiving member 40. Therefore, if the amount of air injected is appropriate, the base material 10 does not come into contact with the receiving member 40, and the base material 10 is not scratched by rubbing against the receiving member 40.
  • the surface of the receiving member 40 facing the base material 10 is coated with a material having a friction coefficient lower than that of the base of the receiving member 40, and at least one of the surface treatments for reducing the friction coefficient is applied. Is preferable.
  • the receiving member 40 is a metal such as stainless steel
  • the surface of the receiving member 40 facing the base material 10 is made of a resin such as Teflon (registered trademark) and / or a glass cloth or the like. Coating with a material having a lower coefficient of friction than the underlying metal may be applied.
  • polishing may be performed so that the friction coefficient of the surface of the receiving member 40 facing the base material 10 is low.
  • the receiving member 40 may include a roller 42.
  • the rollers 42 it is preferable to increase the number of rollers 42 to disperse the load in order to suppress scratches caused by the contact between the base material 10 and the rollers 42.
  • the injection surface is as shown in FIG. Only one roller 42 provided at a position facing the apex of the switching portion of the transport direction in the above may be used.
  • the base material 10 is transported in a floating state over a long distance of, for example, 1 meter or more, wrinkles may occur on the base material 10.
  • the receiving member 40 provided so as to cover the injection surface of the non-contact transport portion 62 is used, as described above, air enters between the base material 10 and the receiving member 40, so that the base is used. The material 10 does not come into contact with the receiving member 40, and wrinkles may occur.
  • the transport device 60 may further include a roller 44 for removing wrinkles provided on the downstream side of the transport path from the receiving member 40.
  • the roller 44 comes into contact with the base material 10, the occurrence of wrinkles can be suppressed.
  • the wrinkle removing roller 44 is arranged within a distance (for example, 1 meter) at which the base material 10 is wrinkled from a member (for example, the roller 22 in FIG. 1) that is in contact immediately before the base material 10 comes into contact with the roller 44. It should be done. Further, as shown in FIG. 9, the roller 44 is preferably arranged in close proximity to the receiving member 40.
  • the transfer device 60 may adjust the injection amount of the air injected from the non-contact transfer unit 62 so as to be smaller on the downstream side than on the upstream side of the transfer path. ..
  • the number of injection ports 64C on the downstream side may be smaller than that on the upstream side.
  • the transport device 60 ends the injection amount of air injected from the non-contact transport unit 62 with respect to the central portion in the direction intersecting the transport direction of the injection surface (that is, the width direction). It may be adjusted so that the number of parts is smaller.
  • the number of injection ports 64C at the end portion in the width direction may be smaller than that at the center portion in the width direction, or the air may be supplied to the chambers 72A and 72C at the end portion. The amount of air itself may be reduced.
  • the temperature of the receiving member 40 may be adjusted, and the receiving member 40 may accelerate the drying of the water-based ink 14 applied to the base material 10.
  • the temperature of the air injected from the non-contact transport unit 62 is preferably higher than the temperature of the receiving member 40.
  • the same function as the heating drum 82 in the drying section 80 described above may be realized by the member 40, and the same function as the blower nozzle 84 may be realized by the air injected from the non-contact transport section 62.
  • the time required for drying in the drying section 80 on the downstream side can be shortened, which is advantageous in shortening the time required for printing and downsizing the device. Become.
  • the transfer device 60 injects air from the injection surface formed in a substantially arc shape along the transfer path to raise the base material 10 from the injection surface.
  • a non-contact transport unit 62 that transports the base material 10 in a non-contact state while changing the transport direction, and a receiving member 40 provided at a position facing at least a region including the apex of the transport direction switching portion on the injection surface.
  • the floating amount of the base material 10 can be limited by the receiving member 40, so that even if the material, thickness and width of the base material 10 change, it is stable.
  • the base material can be transported.
  • the transport device 60 changes the transport direction by 180 degrees, but the present invention is not limited to this.
  • the transport device 60 may change the transport direction by 90 degrees.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)
  • Ink Jet (AREA)
PCT/JP2021/008225 2020-03-30 2021-03-03 搬送装置、印刷装置及び搬送方法 Ceased WO2021199872A1 (ja)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025121162A1 (ja) * 2023-12-05 2025-06-12 パナソニックＩｐマネジメント株式会社 圧粉シート搬送装置
WO2025121163A1 (ja) * 2023-12-05 2025-06-12 パナソニックＩｐマネジメント株式会社 圧粉シート搬送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10330004A (ja) * 1997-06-02 1998-12-15 Inoue Kinzoku Kogyo Kk ウエブ走行方向変換装置
JP2005047671A (ja) * 2003-07-28 2005-02-24 Fuji Photo Film Co Ltd 無接触搬送方法及び装置
JP2020016353A (ja) * 2018-07-23 2020-01-30 株式会社リコー 乾燥装置、印刷装置
JP2021050051A (ja) * 2019-09-24 2021-04-01 株式会社Ｓｃｒｅｅｎホールディングス ターンバーおよび印刷装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10330004A (ja) * 1997-06-02 1998-12-15 Inoue Kinzoku Kogyo Kk ウエブ走行方向変換装置
JP2005047671A (ja) * 2003-07-28 2005-02-24 Fuji Photo Film Co Ltd 無接触搬送方法及び装置
JP2020016353A (ja) * 2018-07-23 2020-01-30 株式会社リコー 乾燥装置、印刷装置
JP2021050051A (ja) * 2019-09-24 2021-04-01 株式会社Ｓｃｒｅｅｎホールディングス ターンバーおよび印刷装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025121162A1 (ja) * 2023-12-05 2025-06-12 パナソニックＩｐマネジメント株式会社 圧粉シート搬送装置
WO2025121163A1 (ja) * 2023-12-05 2025-06-12 パナソニックＩｐマネジメント株式会社 圧粉シート搬送装置

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