JP2017179655A - Ink-jet recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink-jet recording apparatus that is capable of suppressing decomposition of a dye in a long fabric on which an image is recorded by recording means and which is taken in by collection means.SOLUTION: The ink-jet recording apparatus comprises conveyance means, recording means, drying means, cooling means and collection means. The conveyance means conveys a long fabric that is delivered out from supply means in a conveyance direction. The recording means records an image on the fabric that is conveyed by the conveyance means in the conveyance direction. The drying means dries the fabric on which the image is recorded. The cooling means cools the fabric that is dried. The collection means collects the fabric that is cooled.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an inkjet recording apparatus that records an image on a long fabric.

  Techniques related to ink jet recording have been proposed. Patent Document 1 discloses a printing apparatus. The printing apparatus includes an introduction unit, a conveyance unit, a printing unit, a preliminary drying unit, a drying unit, a shake-off unit, and the like. The introduction part is a part that introduces a roll or a cloth housed in a box into a predetermined position of the conveyance part while performing wrinkle stretching. The conveyance unit is a portion that is arranged adjacent to the introduction unit and conveys the introduced fabric to the print unit side by the conveyance belt. The print part is a part for drawing a pattern, a character, or the like on the cloth by a continuous ink jet method. The print unit has a plurality of lines of heads that are opposed to each other in the direction perpendicular to the transport direction more than the width of the fabric and correspond to the number of colors of ink to be used. The print unit may be an on-demand ink jet system. The preliminary drying part is a part that dries at least 20% or more of the evaporation component in the ink from the fabric subjected to the printing process by a heater or the like. The drying part is a part that further evaporates, for example, 85% or more of the evaporation component in the ink from the fabric dried in the preliminary drying part.

Japanese Patent Laid-Open No. 9-240022

  It should be noted that an inkjet recording apparatus that records an image on a fabric is different from an image recording on a paper or the like. One of them is a decrease in quality after recording an image. In particular, in an inkjet recording apparatus for a long fabric, a drying unit for drying the fabric (ink on the fabric) is provided continuously with a recording unit for recording an image on the fabric, and then winding or shaking is performed. The fabric is collected so that the fabrics are overlapped with each other.

  Problems may arise if the fabrics are collected so as to overlap each other. That is, the dye is easily decomposed under the influence of heat for drying the fabric and moisture retained by the fabric. This tendency is particularly remarkable in the case of reactive dyes. According to an ink jet recording apparatus provided with recording means including an ink jet head, a suitable image can be recorded at high speed. However, because of the high speed, the fabric is piled up and collected while accumulating heat and moisture during drying, and they cannot escape. Therefore, the drying of the fabric is one problem to be solved in the above-described ink jet recording apparatus in order to record an image at high speed and maintain the quality of the recorded image.

  An object of the present invention is to provide an ink jet recording apparatus having a recording means including an ink jet head, which can suppress decomposition of a dye and maintain a normal color development state and can record a high-quality image at high speed. To do.

  An inkjet recording apparatus according to one aspect of the present invention is an inkjet recording apparatus including a recording unit that records an image by an inkjet recording head that discharges dye ink toward a long fabric, and a transport unit that transports the fabric. A drying means for drying the dye ink adhering to the cloth on the downstream side in the transport direction of the fabric with respect to the recording means; a cooling means for cooling the fabric on the downstream side in the transport direction of the drying means; And a collecting means for collecting. In this ink jet recording apparatus, the fabric can be suitably dried and cooled, and the decomposition of the dye accompanying the heat of drying can be suppressed. The fabric can be efficiently dried and cooled. The fabric can be suitably heated. It is possible to suppress deterioration in quality such as color blurring and fading associated with the decomposition of the dye. Therefore, an inkjet recording apparatus including a recording unit including an inkjet head that can record a high-quality image at high speed on the fabric can be provided.

  This ink jet recording apparatus can also be configured as follows. The dye may be a reactive dye. According to this, the influence of hydrolysis peculiar to a reactive dye can be suppressed. Further, the cooling means may be a blower, and the air direction of the blower may be along the transport direction of the fabric. According to this, the influence of the cooling part with respect to the drying part which has a heat source etc. can be suppressed. Further, the gas sent out from the blower may be dehumidified air. According to this, the decomposition of the dye can be further suppressed by making the fabric dry while cooling. Furthermore, the gas sent out from the blower may be cooled air. According to this, the fabric can be cooled more efficiently, and a high-quality image can be recorded at high speed.

  The means for collecting the fabric may be a winder. According to this, in the ink jet recording apparatus that continuously records an image on a long fabric, the long fabric on which a suitable image is recorded can be collected.

  According to the present invention, an ink jet recording apparatus capable of suppressing degradation of a dye in a long fabric taken in by a recovery unit, maintaining a good color development state, and recording a high-quality image at high speed. Can be obtained.

It is a front view which shows an example of a recording system. It is a perspective view which shows an example of a recording device. It is a figure which shows an example of the inkjet recording device of this invention.

  Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Other configurations may be included.

<Recording system>
In the recording system 1, a long fabric 3 on which an image is recorded is produced. Examples of the fabric 3 include fiber knitted fabrics made of various materials. The recording system 1 includes a supply device 10, a collection device 12, a plurality of sixth rollers 14, a recording device 16, and a control device 90. In the recording system 1, the three sixth rollers 14 are provided at predetermined positions shown in FIG. However, the number and arrangement of the sixth rollers 14 are examples. The number and arrangement of the sixth rollers 14 in the recording system 1 are appropriately set in consideration of various conditions. Hereinafter, the supply device 10, the recovery device 12, the drying device 100, the cooling device 110, and the recording device 16 will be described with reference to FIGS.

<Supply device, recovery device and sixth roller>
For example, the fabric 3 wound in a roll shape is set in the supply device 10. The supply apparatus 10 pays out the set fabric 3. The fabric 3 fed out from the supply device 10 is conveyed to the recording device 16 side and supplied to the recording device 16. The collection device 12 collects the fabric 3 on which the image is recorded in the recording device 16. For example, the fabric 3 on which the image is recorded is wound up in a roll shape by the collection device 12. That is, in the recording system 1, the fabric 3 is unwound from the supply device 10, passes through the recording device 16, is further conveyed to the collection device 12 side, and is collected by the collection device 12. In the present invention, a drying device 100 and a cooling device 110 not shown in FIG. The drying device 100 and the cooling device 110 will be described later. As the supply device 10 and the recovery device 12, a supply device and a recovery device provided in a known recording system can be employed. Therefore, the other description regarding the supply apparatus 10 and the collection | recovery apparatus 12 is abbreviate | omitted.

  The plurality of sixth rollers 14 form a conveyance path together with the third roller 60, the conveyance unit 20, and the fifth roller 80 in the recording device 16. The conveyance path is a path through which the fabric 3 passes between the supply device 10 and the collection device 12. That is, in the recording system 1, the fabric 3 is transported along the transport path from the supply device 10 toward the collection device 12. In the embodiment, the direction in which the fabric 3 is conveyed is referred to as “conveying direction”. Regarding the transport direction, the supply device 10 side is referred to as a “second side”, and the collection device 12 side is referred to as a “first side”. The first side in the transport direction is the downstream side in the transport direction, and the second side in the transport direction is the upstream side in the transport direction.

  The three sixth rollers 14 are each supported rotatably in a direction corresponding to the transport direction. The sixth roller 14 is in contact with either the first surface 4 or the second surface 5 of the fabric 3 on the outer peripheral surface. The first surface 4 of the fabric 3 is the surface of the fabric 3 on which an image is recorded. The second surface 5 of the fabric 3 is the surface of the fabric 3 that is opposite to the first surface 4. The sixth roller 14 rotates following the direction corresponding to the transport direction by the outer peripheral surface being in contact with the fabric 3 being transported. In FIG. 1 and FIG. 2, a circular arrow shown on the outer periphery or inside of the sixth roller 14 indicates the rotation direction of the sixth roller 14.

<Recording device>
The recording device 16 is an ink jet recording device. Ink jet recording apparatuses use ink as a recording agent. Therefore, the recording device 16 records an image on the fabric 3 using ink. The recording device 16 includes a transport unit 20, a fourth roller 30, a recording unit 40, a moving unit 50, a third roller 60, a second motor 61, a fifth roller 80, a fourth motor 81, A control device 90 is provided. In FIG. 1, the recording unit 40 and the moving unit 50 are illustrated in a simplified and integrated manner. In FIG. 1, illustration of the control device 90 is omitted. Hereinafter, each of the above-described configurations included in the recording device 16 will be described.

<Transport section>
The conveyance unit 20 is a belt conveyor. The transport unit 20 transports the fabric 3 fed from the supply device 10 in the transport direction. The fabric 3 conveyed by the conveyance unit 20 passes through the recording unit 40. The transport unit 20 includes a first roller 21, a first motor 22, a second roller 23, and an endless belt 24. The first roller 21 is provided on the first side in the transport direction. The first motor 22 is connected to the first roller 21. The first motor 22 rotates the first roller 21 in a direction corresponding to the transport direction. The rotation of the first roller 21 by the first motor 22 is performed intermittently. In FIG. 1 and FIG. 2, the arc-shaped arrow shown inside the first roller 21 indicates the rotation direction of the first roller 21. The second roller 23 is provided on the second side in the transport direction.

  The endless belt 24 is an annular belt. The endless belt 24 is stretched between the first roller 21 and the second roller 23 in a state where tension is applied. In the endless belt 24, the inner peripheral surface is in contact with the outer peripheral surface of the first roller 21 and the outer peripheral surface of the second roller 23. In a state where the endless belt 24 is bridged between the first roller 21 and the second roller 23, the outer peripheral surface of the endless belt 24 is in a horizontal state between the first roller 21 and the second roller 23. That is, in the transport unit 20, the transport direction is a horizontal direction.

  As shown in FIG. 2, an adhesive portion 25 is formed on the outer peripheral surface of the endless belt 24. The adhesive portion 25 is formed on the outer peripheral surface of the endless belt 24 over the entire circumference. The adhesive part 25 is formed with a well-known adhesive tape or an adhesive, for example. In FIG. 1, illustration of the adhesive portion 25 is omitted. In FIG. 2, the dot pattern attached to the outer peripheral surface of the endless belt 24 corresponds to the adhesive portion 25. In the transport unit 20, the endless belt 24 rotates intermittently in a direction corresponding to the transport direction with the intermittent rotation of the first roller 21 by the first motor 22. The second roller 23 is intermittently rotated in a direction corresponding to the conveying direction by following the intermittent rotation of the endless belt 24. That is, in the transport unit 20, the fabric 3 is transported intermittently in the transport direction.

<4th roller>
The fourth roller 30 is a pressing part. The fourth roller 30 as a pressing portion presses the fabric 3 against the outer peripheral surface of the endless belt 24 on which the adhesive portion 25 is formed. The fourth roller 30 is a roller called a nip roller. The fourth roller 30 is provided on the second side in the transport direction from the recording unit 40 with the outer peripheral surface facing the outer peripheral surface of the endless belt 24. The fourth roller 30 is rotatably supported in a direction corresponding to the transport direction. The width of the fourth roller 30 corresponds to the width W of the endless belt 24. For example, the width of the fourth roller 30 is equal to or greater than the width W of the endless belt 24 (see FIG. 2).

  As the pressing force by the fourth roller 30, for example, the own weight of the fourth roller 30 is used. An urging portion that urges the fourth roller 30 downward in the vertical direction may be provided. By providing the urging portion, the pressing force can be increased as compared with the case where the fourth roller 30 has its own weight. An air cylinder is exemplified as the urging unit. 1 and 2, the illustration of the urging unit is omitted. The fabric 3 passes between the endless belt 24 and the fourth roller 30. At this time, the outer surface of the fourth roller 30 is in contact with the first surface 4 of the fabric 3 and rotates following the direction corresponding to the transport direction. Along with this, the fabric 3 is fixed to the outer peripheral surface of the endless belt 24 by the adhesive portion 25. The fabric 3 is transported in the transport direction by the transport unit 20 while being fixed to the outer peripheral surface of the endless belt 24. In FIG. 1 and FIG. 2, the arc-shaped arrow shown on the outer periphery of the fourth roller 30 indicates the rotation direction of the fourth roller 30.

<Recording section>
The recording unit 40 records an image on the fabric 3 conveyed in the conveyance direction by the conveyance unit 20. In FIG. 2, the cross pattern given to the portion of the fabric 3 illustrated on the first side in the transport direction from the recording unit 40 corresponds to the image recorded on the fabric 3. As shown in FIG. 2, the recording unit 40 includes inkjet heads 41 </ b> K, 41 </ b> M, 41 </ b> Y, 41 </ b> C and a carriage 42. The ink jet head 41K is an ink jet head that discharges black ink. The inkjet head 41M is an inkjet head that ejects magenta ink. The inkjet head 41Y is an inkjet head that discharges yellow ink. The ink jet head 41C is an ink jet head that discharges cyan ink.

  In the inkjet heads 41K, 41M, 41Y, and 41C, a plurality of nozzles that eject ink of corresponding colors are formed. According to the inkjet heads 41K, 41M, 41Y, and 41C, a full-color image can be recorded on the fabric 3. The ink of each color is stored in the ink tank for each color, flows through the ink flow path for each color, and is supplied to the inkjet heads 41K, 41M, 41Y, and 41C. In FIG. 1 and FIG. 2, illustrations of nozzles, ink tanks for each color, and ink flow paths are omitted.

  Ink jet heads 41K, 41M, 41Y, and 41C are mounted on the carriage 42 while being positioned at predetermined positions, respectively. As shown in FIG. 2, the inkjet heads 41K, 41M, 41Y, and 41C are mounted on the carriage 42 so as to be adjacent to each other in the main scanning direction. The arrangement order of the inkjet heads 41K, 41M, 41Y, and 41C in the main scanning direction may be different from that shown in FIG. These arrangement orders are appropriately determined in consideration of various conditions. The main scanning direction coincides with the width direction of the endless belt 24 in which the outer peripheral surface is horizontal as described above, and is orthogonal to the conveying direction (see FIG. 2).

  Various dye inks are used for image recording. Examples of the dye include dyes such as reactive dyes, acid dyes, direct dyes, and disperse dyes. When a reactive dye that is easily hydrolyzed by heat and water is used, the ink jet recording apparatus of the present application can remarkably obtain the effects of the present invention. If necessary, a dispersant, an antifoaming agent, a penetrating agent, a deep dyeing agent, a pH adjusting agent, and the like may be added to the ink. In the ink jet recording apparatus 1, each color ink is stored in an ink tank (not shown) for the corresponding color ink, and is supplied to each color ink jet head 41 via each color ink supply line.

<Moving part>
The moving unit 50 reciprocates the recording unit 40 in the main scanning direction. As shown in FIG. 2, the moving unit 50 includes two pulleys 51 and 52, a timing belt 53, and a third motor 54. The pulley 51 is provided on the fourth side in the main scanning direction with the transport unit 20 as a reference. A third motor 54 is connected to the pulley 51. The pulley 52 is provided on the third side in the main scanning direction with the transport unit 20 as a reference. The pulley 52 is rotatably supported. The timing belt 53 is stretched over pulleys 51 and 52 in a state where tension is applied. The third motor 54 is connected to the pulley 51. The third motor 54 rotates the pulley 51. In FIG. 2, arc-shaped arrows shown inside the pulley 51 indicate the rotation direction of the pulley 51. The recording unit 40 is attached to the timing belt 53 via the support unit 55.

<Third roller and second motor>
The 3rd roller 60 is provided in the conveyance direction between the supply apparatus 10 and the conveyance part 20, and the 2nd surface 5 side of the fabric 3 conveyed between this. The outer peripheral surface of the third roller 60 comes out of the supply device 10 and comes into contact with the second surface 5 of the fabric 3 before reaching the transport unit 20. The outer peripheral surface of the third roller 60 is in a state of generating a predetermined frictional force with the second surface 5 of the fabric 3. For example, the outer peripheral surface of the third roller 60 is formed of an elastic body such as rubber or elastomer. The second motor 61 is connected to the third roller 60. The second motor 61 rotates the third roller 60 in a direction corresponding to the transport direction. The rotation of the third roller 60 by the second motor 61 is performed intermittently. In FIG. 1, the arc-shaped arrow shown on the outer periphery of the third roller 60 and the arc-shaped arrow shown inside the third roller 60 in FIG. 2 indicate the rotation direction of the third roller 60.

<Fifth roller and fourth motor>
The fifth roller 80 is provided on the first side in the transport direction from the recording unit 40 and at a position higher than the transport surface of the transport unit 20 in the vertical direction. The conveyance surface of the conveyance unit 20 is a horizontal surface of the outer peripheral surface of the endless belt 24 on the recording unit 40 side where the fabric 3 is conveyed in the conveyance direction. In the embodiment, the position in the transport direction where the fifth roller 80 is provided is the first side in the transport direction from the transport unit 20. The outer peripheral surface of the fifth roller 80 is in contact with the second surface 5 of the fabric 3 on which an image is recorded on the first surface 4. The outer peripheral surface of the fifth roller 80 is in a state of generating a predetermined frictional force with the second surface 5 of the fabric 3. Similar to the third roller 60, the outer peripheral surface of the fifth roller 80 is formed of an elastic body such as rubber or elastomer. The fourth motor 81 is connected to the fifth roller 80. The fourth motor 81 rotates the fifth roller 80 in a direction corresponding to the transport direction. The rotation of the fifth roller 80 by the fourth motor 81 is intermittently performed in correspondence with the intermittent rotation of the first roller 21 by the first motor 22. In FIG. 1, the arc-shaped arrow shown on the outer periphery of the fifth roller 80 and the arc-shaped arrow shown inside the fifth roller 80 in FIG. 2 indicate the rotation direction of the fifth roller 80.

  As the fifth roller 80 rotates in a direction corresponding to the transport direction, the fabric 3 transported by the transport unit 20 and passed through the recording unit 40 is pulled toward the fifth roller 80 side. Accordingly, the fabric 3 fixed to the outer peripheral surface of the endless belt 24 by the adhesive portion 25 is peeled from the outer peripheral surface (adhesive portion 25) of the endless belt 24. As described above, the fabric 3 passes through the fifth roller 80 and is then sent to the drying device 100.

<Drying device and cooling device>
The drying device 100 and the cooling device 110 will be described with reference to FIG. The drying device 100 and the cooling device 110 in FIG. 3 are disposed between the fifth roller 80 in FIG. 1 and the sixth roller 14 in front of the collection device 12. Further, the drying device 100 and the cooling device 110 in FIG. 3 are arranged behind the fifth roller 80 in FIG. 2. The drying device 100 includes a heater, a blower, and the like serving as a heat source, and dries the fabric 3 (ink on the fabric 3) from which an image is recorded and peeled from the adhesive portion 25 of the endless belt 24. The fabric 3 passes through the drying device 100 and is sent to the collection device 12 side. The drying apparatus 100 may be configured by a drying mechanism such as a temporary drying unit and a main drying unit, and may dry the fabric 3 in two stages. As described above, the fabric 3 passes through the drying device 100 and is then sent to the cooling device 110. The surface temperature of the fabric during drying is preferably 70 ° C. or less, and more preferably 50 ° C. or less. By controlling the surface temperature at 70 ° C. or lower, the occurrence of color blurring and fading due to the decomposition of the dye can be suppressed, and a high-quality image can be recorded. In particular, in the case of printing with a reactive dye, the surface temperature of the fabric during drying is desirably 50 ° C. or less so as not to promote hydrolysis of the dye by drying.

The cooling device 110 includes a blower or the like, and cools the fabric 3 on which an image is recorded and dried by the drying device 100. The wind speed of the blower is desirably 0.5 to 7 m / S. When the wind speed is less than 0.5 m / S, there is a possibility that a sufficient cooling effect cannot be obtained. In addition, when cooling is performed by applying a wind speed exceeding 7 m / S to the fabric, there is a possibility that the image quality is deteriorated by scattering the dye ink before coloring recorded on the fabric. The air direction of the blower is preferably along the first side from the second side in the transport direction of the fabric. Moreover, it is preferable that the gas sent out from an air blower is dehumidified air. Furthermore, it is preferable that the gas sent out from the blower is cooled air. The cooling device 110 may include an auxiliary drying device. As described above, the fabric 3 passes through the cooling device 110 and is then sent to the recovery device 12.

The collection device 12 collects the fabric 3 cooled by the cooling device 110. The collection device 12 includes a swing-down unit and a winder. The unillustrated swing-off portion swings in the first direction and the opposite direction with the upper portion in the vertical direction as a fulcrum at the drive portion, and collects the fabric 3 sent from the cooling device 110 side for recovery. Collect in the cart. The elongate fabric 3 is accommodated in the cart in a state of being folded alternately on the left and right. The fabric 3 collected by the collection device 12 and accommodated in the carriage is moved to the next step, for example, the color development step. The winder is a device that winds the fabric 3 as shown in FIGS. 1 and 3. It winds around a cylindrical shaft portion in accordance with the speed of the cloth 3 to be fed out. The winder is directly or indirectly attached to the shaft by power such as a motor (not shown).

<Control device>
The control device 90 includes an operation unit 91, a control unit 93, and an internal power supply 94. In the operation unit 91, a predetermined command is accepted. For example, the operation unit 91 accepts a recording method start command to be described later. The operation unit 91 includes a setting unit 92.

  The control unit 93 executes arithmetic processing and controls various processes executed by the recording device 16. For example, the controller 93 controls the ejection of ink from the inkjet heads 41K, 41M, 41Y, and 41C. The controller 93 controls driving of the first motor 22, the second motor 61, the third motor 54, and the fourth motor 81, respectively. The internal power supply 94 is connected to an external power supply. The internal power supply 94 is connected to the first motor 22, the second motor 61, the third motor 54, and the fourth motor 81, for example. In FIG. 2, illustration of electric cables connecting the internal power supply 94, the first motor 22, the second motor 61, the third motor 54, and the fourth motor 81 is omitted. The internal power supply 94 supplies current to the first motor 22, the second motor 61, the third motor 54, and the fourth motor 81.

<Effect of embodiment>
According to the embodiment, the following effects can be obtained.

  (1) After the recording device 16 of the recording system 1, a cooling device 110 is provided between the drying device 100 and the collection device 12 in the transport direction (see FIG. 3).

  Therefore, the fabric 3 in which the thermal energy is stored by the drying device 100 can be cooled by the cooling device 110. That is, the fabric 3 to which ink has been applied by the recording device 16 and dried by the heat energy of the drying unit 100 is maintained in a normal state by the cooling device 110 and taken into the collection device 12. As a result, a good image free from color blur and color unevenness can be obtained.

  (2) When the cooling device 110 is a blower, the air direction is set along the conveyance direction of the fabric 3 to be conveyed. Therefore, only the fabric 3 can be cooled without cooling the drying device 100. Therefore, efficient drying and cooling can be achieved.

<Modification>
The embodiment can also be performed as follows. Some configurations of the modifications shown below can be appropriately combined and employed. Hereinafter, points different from the above will be described, and description of similar points will be omitted as appropriate.

  (1) Regarding the transport direction, for convenience of explanation, the downstream side in the transport direction is set as the “first side”, and the upstream side in the transport direction is set as the “second side” (see FIGS. 1 and 2). The settings on the first side and the second side in the transport direction may be opposite to the above. That is, the upstream side in the transport direction can be set as the “first side”, and the downstream side in the transport direction can be set as the “second side”. In this case, the first roller 21 connected to the first motor 22 is provided on the first side in the transport direction, which is the upstream side in the direction in which the fabric 3 is transported. The 2nd roller 23 is provided in the 2nd side of the conveyance direction which is the downstream of the direction in which the fabric 3 is conveyed.

  (2) In the recording device 16, the image is recorded on the fabric 3 while the recording unit 40 is reciprocated in the main scanning direction by the moving unit 50 (see FIG. 2). As the ink jet recording apparatus, a recording apparatus of a type different from the recording apparatus 16 has been put into practical use. In this different type of recording apparatus, the recording unit includes an inkjet head called a line type. In this case, in the recording unit, the inkjet heads for the respective colors are mounted on the carriage in a state adjacent to each other in the transport direction. In a line-type inkjet head, a plurality of nozzles are arranged in the main scanning direction. The configuration of the embodiment in which the temperature of the fabric 3 is set to a normal state by disposing the drying device 100 and the cooling device 110 in a direction corresponding to the transport direction is employed in a recording device in which the recording unit includes a line-type inkjet head. You can also A recording unit including a line-type inkjet head has a configuration adopted in a known inkjet recording apparatus. Therefore, description of the line-type inkjet head and the recording unit including the same is omitted.

  (3) The fabric 3 is set in the supply device 10 in a state of being wound in a roll shape, and is wound and recovered in a roll shape by the recovery device 12 (see FIG. 1). In the recording system, the supply and recovery of the long fabric 3 as a recording medium may be performed in the following state. That is, for example, the fabric 3 is alternately folded in a predetermined direction and is accommodated in a predetermined cart or the like. The predetermined direction is, for example, the transport direction and the opposite direction. The supply device includes an introduction roller that is rotated by a motor or the like. In the supply device, the introduction roller is rotated, and the fabric 3 is fed out from the carriage set in the supply device. The fed fabric 3 is supplied to the transport unit 20 via the sixth roller 14 and the like as described above. At that time, the fabric 3 is in contact with the outer peripheral surface of the third roller 60 at the second surface 5 as described above.

  (4) The collection of the fabric 3 is also carried out by being accommodated in a cart different from the cart on the supply side in a state where the fabric 3 is alternately folded in a predetermined direction. In this case, the collection device includes a swing-down unit. In the swing-down unit, the lower part in the vertical direction is swung by the motor or the like in the direction opposite to the transport direction with the upper part in the vertical direction as a fulcrum. Such a supply device and a recovery device are devices that have already been adopted in a known recording device that targets a long recording medium such as the cloth 3 described above. Therefore, the other description regarding such a supply apparatus and a collection | recovery apparatus is abbreviate | omitted.

  (5) The cooling device 110 is provided on the first surface 4 side of the fabric 3 (see FIG. 3). In this case, the outlet of the cooling device 110 faces the first surface 4 of the fabric 3. The cooling device 110 may be provided on the second surface 5 side of the fabric 3. In this case, the outlet of the cooling device 110 faces the second surface 5 of the fabric 3. By cooling the cooling device 110 in a state of passing through the drying device 100 and facing the second surface 5 of the fabric 3 before reaching the collection unit 12, the fabric 3 is maintained at a normal temperature as described above. be able to.

  (6) In the recording device 16, the conveyance of the fabric 3 by the conveyance unit 20 is in accordance with the timing at which the recording unit 40 reaches each moving end on the third side or the fourth side in the main scanning direction and is stopped for a predetermined period. It is done intermittently. As described above, each color ink is transferred from the inkjet heads 41K, 41M, 41Y, 41C to the fabric 3 at a predetermined timing when the recording unit 40 moves between the third side and the fourth side in the main scanning direction. It is discharged toward. The conveyance of the fabric 3 by the conveyance unit 20 may be performed corresponding to one reciprocation of the recording unit 40 in the main scanning direction. For each color ink, the recording unit 40 moves from the third side in the main scanning direction to the fourth side, or the recording unit 40 moves from the fourth side in the main scanning direction to the third side. The ink jet heads 41K, 41M, 41Y, 41C are discharged toward the fabric 3 at a predetermined timing.

  For example, it is assumed that ink is ejected at a predetermined timing when the recording unit 40 moves from the third side to the fourth side in the main scanning direction. In this case, ink is not ejected at the timing when the recording unit 40 moves from the fourth side to the third side in the main scanning direction. The conveyance of the fabric 3 by the conveyance unit 20 moves again from the fourth side in the main scanning direction to the third side after the recording unit 40 reaches the fourth moving end in the main scanning direction and stops. This is performed at a predetermined timing while reaching the third side in the scanning direction and stopping. In contrast, it is assumed that ink is ejected at a predetermined timing when the recording unit 40 moves from the fourth side to the third side in the main scanning direction. In this case, ink is not ejected at the timing when the recording unit 40 moves from the third side to the fourth side in the main scanning direction. The conveyance of the fabric 3 by the conveyance unit 20 moves again from the third side in the main scanning direction to the fourth side after the recording unit 40 reaches the third moving end in the main scanning direction and stops. This is performed at a predetermined timing while reaching the fourth side in the scanning direction and stopping.

  (7) The transport unit 20 is a belt conveyor including a first roller 21, a first motor 22, a second roller 23, and an endless belt 24. The conveyance part 20 is good also as a conveyance part of a format different from a belt conveyor. For example, the transport unit may be a transport drum. When a conveyance drum is employ | adopted as a conveyance part, the fabric 3 is mounted on the outer peripheral surface of a conveyance drum. Similarly to the intermittent rotation of the first roller 21 by the first motor 22 described above, the transport drum is intermittently rotated to one side in the circumferential direction by the drive unit. The rotation direction of the transport drum is the same direction as the first roller 21 described above. Accordingly, the fabric 3 is transported in the transport direction. The fabric 3 conveyed by the conveyance drum passes through the recording unit 40 during conveyance. The recording unit 40 is provided to face the outer peripheral surface of the transport drum. An adhesive portion 25 is provided on the outer peripheral surface of the transport drum. For example, the adhesion part 25 is formed in the outer peripheral surface of a conveyance drum over the perimeter. The fabric 3 is conveyed in a state where it is affixed to the adhesive portion 25. The transport drum is a known transport unit. A recording apparatus including a transport drum is also a known recording apparatus. Therefore, the other description regarding a conveyance drum and a recording apparatus provided with this is abbreviate | omitted.

DESCRIPTION OF SYMBOLS 1 Recording system, 3 Fabric, 4 1st surface, 5 2nd surface 10 Supply apparatus, 12 Collection | recovery apparatus, 14 6th roller, 16 Recording apparatus 20 Conveyance part, 21 1st roller, 22 1st motor, 23 2nd roller 24 endless belt, 25 adhesive section, 30 fourth roller, 40 recording section 41K, 41M, 41Y, 41C inkjet head, 42 carriage 50 moving section, 51, 52 pulley, 53 timing belt 54 third motor 55 support section, 60th Three rollers, 61 Second motor 80 Fifth roller, 81 Fourth motor, 90 Control device, 91 Operation unit 92 Setting unit, 93 Control unit, 94 Internal power supply, W width 70 Seventh roller, 71 Eighth roller 100 Drying device 110 Cooling device

Claims (6)

  An inkjet recording apparatus comprising: a recording unit that records an image by an inkjet recording head that discharges dye ink toward a long fabric; and a conveyance unit that conveys the fabric. A conveyance direction of the fabric with respect to the recording unit A drying unit for drying the dye ink attached to the fabric on the downstream side, a cooling unit for cooling the fabric on the downstream side in the transport direction of the drying unit, and a collecting unit for collecting the fabric. An ink jet recording apparatus.   The inkjet recording apparatus according to claim 1, wherein the dye is a reactive dye.   The inkjet recording apparatus according to claim 1, wherein the cooling unit is a blower, and a wind direction of the blower is along a conveyance direction of the fabric.   The inkjet recording apparatus according to claim 3, wherein the gas sent from the blower is dehumidified air.   The ink jet recording apparatus according to claim 3 or 4, wherein the gas sent out from the blower is cooled air.   The inkjet recording apparatus according to claim 1, wherein the collecting unit is a winder.

Images