JP5355862B2 - Inkjet recording method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide such an ink-jet recording method that, in making a recording on a knitted fabric where multiple patterns are knitted and arranged crosswise, an image recording can be made correspondingly to the extent of stretch of each of the patterns, and to provide an ink-jet recording apparatus. <P>SOLUTION: The ink-jet recording apparatus has the following construction and mechanism: A carriage 11 is disposed with an identification mark position sensor 15 close to an ink-jet recording head 1, and the sensor 15 works in such a way as to move on a knitted fabric T along with the ink-jet recording head 1 and detect the position of an identification mark knitted in the knitted fabric T. The identification patterns are arranged in the main scanning direction corresponding to multiple patterns arranged in the main scanning direction X, and, based on a detection signal from the sensor 15, a deviation level of each pattern's sub-scanning direction Y is calculated and a recording starting position for each pattern is adjusted. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an inkjet recording method and apparatus for recording an image on each pattern of a knitted fabric in which a plurality of patterns are knitted and arranged in the main scanning direction.

  The ink jet recording method is a method for performing printing or image recording by ejecting minute ink to a recording medium from an ink ejection port of an ink jet recording head, and can perform a recording operation in a state separated from the recording medium. It can be recorded on recording media and articles of various materials and has been used for a wide range of purposes.

In addition, when an image such as a pattern or a pattern is recorded on a fabric, the inkjet recording method can cope with various images at a lower cost than other recording methods. For example, Patent Document 1 describes that, when a fabric product is created by using a multi-fabric with substantially no sewing, printing is performed on the front and back bodies of the multi-fabric by inkjet. In Patent Document 2, when forming an image on a recording medium having elasticity, a recording medium on which a dividing line is formed is used, and the distortion of the conveyed recording medium is detected by the dividing line. Further, it is described that the image data is corrected based on the determination result, and image formation is performed according to the corrected image data.
JP 2003-147660 A JP-A-11-300949

  When inkjet recording is performed on fabric, it is necessary to consider the stretchability of the fiber itself and the stretchability of the knitting and weaving methods. However, the stretchability of the fabric is not uniform and is added to one end of the fabric. Since it does not stretch uniformly even with the tensile force applied, it must be handled differently from recording media such as paper. Further, even if glue is applied to the fabric before ink jet recording to suppress the bending of the fabric, stretching, skewing, bending, etc. cannot be completely eliminated.

  For example, in the field of innerwear and sportswear with high adhesion between clothes and the body, a fabric knitted in a knitted structure that is not easily frayed in advance is used as a part of the garment with its edges uncleaved and unsewn. It has become like this. When the fabric is used without sewing, the sewing work can be further simplified without causing defects caused by sewing, for example, a sense of incongruity given at the time of wearing or a reduction in fashionability.

  However, since the width of the fabric knitted for such a purpose depends on the form of the final product, it may be set to about 30 cm. Usually, the mass production equipment for the processing step of the fabric requiring a fabric width of 1 m or more. It is very difficult and inefficient to use as it is. It is also possible to use a single piece of fabric by connecting multiple narrow fabrics in the width direction, but in that case, the expansion and contraction of each fabric differs depending on the width of each fabric to be connected, the knitting configuration, or the use of yarn, It is difficult to form an image with high accuracy at once on a fabric having such variation in expansion and contraction.

  In addition, when using the end of the fabric without cutting or sewing, the print position shift of the pattern at the end is reflected in the product as it is, so the height at the end of the fabric is higher than when cutting and using the fabric. Accurate print position control is required.

  In the above-mentioned prior art documents, although it is described that image recording is performed in consideration of the stretchability of the fabric, sufficient examination has not been made regarding the handling of the fabric. For example, in Patent Document 1, in order to cope with the problem that the printed pattern is distorted when there are wrinkles or tension spots on the fabric, the upper and lower layers of the fabric are pseudo-single-textured by open point bonding. However, in the case of a knitted fabric in which a plurality of patterns are knitted in the width direction, the degree of expansion and contraction of each pattern is not uniform. It is difficult to print.

  In Patent Document 2, the dividing line is formed. However, when the dividing line is formed with the special dye on the entire cloth, the permeation of the ink is different in the dividing line at the time of ink jet recording. Will deteriorate greatly. In addition, since the final product also includes a parting line, a reduction in various fastnesses caused by the special dye used is a serious problem. In addition, although it is described that the dividing line is knitted, knitting the yarn in an oblique direction requires special equipment and is not common. Further, in the case of a knitted fabric in which a plurality of patterns are knitted and arranged in the width direction, since the expansion and contraction of each pattern is not uniform, the dividing line is distorted in a complicated manner and recording corresponding to each pattern becomes difficult.

  Accordingly, the present invention provides an ink jet recording method and apparatus capable of performing image recording corresponding to the degree of expansion / contraction of each pattern when recording is performed on a knitted fabric in which a plurality of patterns are knitted and arranged in the width direction. Is intended to provide.

The ink jet recording method according to the present invention is an ink jet recording head in which a stretchable knitted fabric in which a plurality of patterns separated along an outline after recording is knitted and arranged in the main scanning direction is conveyed in the sub scanning direction. In the ink jet recording method for recording an image for each pattern, the pattern is set in the boundary region set over the entire width in the main scanning direction at a position immediately before the sub scanning direction of the recording region set for the pattern. Detecting the positional relationship between a plurality of identification marks that are displayed on the surface of the knitted fabric and arranged in the main scanning direction, and start recording a pattern corresponding to the identification mark based on the detected positional relationship of the identification marks characterized by recording an image in accordance with the position adjusted to the the degree of stretch for each pattern by the inkjet recording head To. Further, the identification mark is displayed at an intermediate position in the main scanning direction with respect to the pattern. Further, the identification mark is displayed immediately before the pattern in the sub-scanning direction. Further, the identification mark is knitted on a knitted fabric. Further, the positional relationship between the identification marks is detected by detecting a deviation amount between the identification marks in the sub-scanning direction.

  By having the configuration as described above, a plurality of patterns arranged in the main scanning direction are displayed on the knitted fabric surface corresponding to each pattern on the knitted fabric arranged and arranged in the main scanning direction. An identification mark is provided, the positional relationship between these identification marks is detected, the recording start position of the pattern corresponding to the identification mark is adjusted based on the detected positional relationship between the identification marks, and an ink jet recording head is used for each pattern. Since the image is recorded, the image can be recorded according to the degree of expansion / contraction of each pattern arranged in the main scanning direction.

  That is, when image recording is performed by transporting the knitted fabric in the sub-scanning direction, variations in expansion and contraction in the sub-scanning direction are likely to occur, but identification marks corresponding to the respective patterns arranged in the main scanning direction are displayed for identification. If the positional relationship between the marks is detected, the degree of expansion and contraction between the patterns in the sub-scanning direction can be detected based on the positional relationship between the identification marks, and each of the adjustments based on the detected positional relationship can be performed. Depending on the pattern recording start position, the recording operation can be performed with high accuracy in accordance with the degree of expansion / contraction.

  By displaying the identification mark at an intermediate position in the main scanning direction of each pattern, the recording start position can be adjusted by setting the identification mark at the average position of the expansion / contraction degree of each pattern. Here, the intermediate position in the main scanning direction is a display of an identification mark set in a region between a pair of straight lines along the sub-scanning direction passing through both end positions corresponding to the maximum width in the main scanning direction of each pattern. The identification mark is preferably displayed at the center position of the region.

  Further, by displaying the identification mark at the position immediately before in the sub-scanning direction with respect to each pattern, the recording start position can be adjusted immediately before the recording operation is performed on each pattern, so that the recording operation is performed efficiently. The identification mark is displayed at a position deviated from each pattern, so that the identification mark does not affect each pattern.

  Further, if the identification mark is knitted on the knitted fabric as an identification pattern, the identification mark can be knitted when the knitted fabric is knitted, and the step for providing the identification mark can be omitted.

  If the displacement amount of the identification mark in the sub-scanning direction is detected as the positional relationship between the identification marks, the recording start position of each pattern can be adjusted by reflecting the degree of expansion / contraction in the sub-scanning direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 shows a schematic configuration diagram relating to an embodiment of the present invention. The inkjet recording apparatus A that records an image on a long knitted fabric T having a predetermined width includes a conveyance mechanism of the knitted fabric T and a scanning mechanism of the inkjet recording head 1.

  The knitted fabric T is continuously fed from the supply roller 8 by the conveying roller, wound around the centering roller 2, and position adjustment in the width direction is performed. An end position detection sensor 7 in the width direction of the knitted fabric T is disposed in the vicinity of the centering roller 2, and based on a detection signal from the end position detection sensor 7, the end of the knitted fabric T to be conveyed is It is monitored whether it is in place.

  The knitted fabric T whose position has been adjusted by the centering roller 2 is carried onto an endless conveying belt 3 stretched around a pair of belt rollers 4. An adhesive tape is fixed to the surface of the endless conveyance belt 3, and the knitted fabric T is stuck to the adhesive tape when the knitted fabric T is pressed against the endless conveyance belt 3 by the pressing roller 5. Positioned above.

  The knitted fabric T positioned on the endless transport belt 3 is transported together with the endless transport belt 3 and an image is recorded by the ink jet recording head 1. The knitted fabric T after the image recording is finished is transported by the transport roller to the endless transport belt. 3 is conveyed upward from 3, peeled off from the adhesive tape, and successively taken up by the take-up roller 6.

  FIG. 2 is a schematic perspective view relating to a mechanism for recording an image. The knitted fabric T is transported in the sub-scanning direction Y by the endless transport belt 3. The inkjet recording head 1 is positioned and fixed on a carriage 11 supported by a guide rail 10, and the carriage 11 is driven by a carriage motor 12 through a timing belt 13 on a knitted fabric T in a main scanning direction (a direction X 1 that crosses the knitted fabric T). , X2).

  In response to the image signal, the carriage 11 is moved in the main scanning directions X1 and X2, and a drive signal is input to the ink jet recording head 1 via the flexible cable 14 and ink is ejected toward the surface of the knitted fabric T. The

  In the ink jet recording head 1, four recording head portions 1Y, 1M, 1C, and 1K are sequentially arranged in the main scanning direction, and discharge different colors of yellow, magenta, cyan, and black, respectively. A full color image can be recorded by appropriately superimposing and recording the four colors.

  An identification mark position detection sensor 15 is disposed on the carriage 11 in the vicinity of the inkjet recording head 1. The identification mark position detection sensor 15 moves on the knitted fabric T together with the inkjet recording head 1, as will be described later. In addition, the position of the identification mark F knitted on the knitted fabric T is detected. As the identification mark position detection sensor 15, a sensor element capable of optically or electrically detecting the identification mark can be used.

  FIG. 3 is a schematic diagram showing a part of the surface of the knitted fabric T. The knitted fabric T is made of a stretchable knitted fabric. In this example, the knitted fabric T is composed of a warp knitted fabric and is knitted in a tubular shape by front and back fabrics, and a plurality of patterns P1 to P6 are knitted in the X direction. In this example, the patterns P1 to P3 are formed by patterns P1 and P3 on both sleeve portions of the garment and a trunk pattern P2 in which the front and back of the garment are overlapped. The patterns P1 to P3 are knitted by connecting necessary portions of the front and back fabrics along the outline, and can be obtained by cutting and separating along the outline to obtain both sleeves and torso, If both sleeves are sewn and attached to the part, the final product can be created. Also for the patterns P4 to P6, other sleeves and torso parts are knitted, and can be separated into a garment in the same manner as the patterns P1 to P3.

  For the patterns P1 to P6, recording areas S1 to S6 are set in accordance with the width of each pattern within a predetermined length range in the Y direction. Region S0 is set over the entire width. In the boundary region S0, the front and back fabrics are connected and knitted so as to be integrated.

  In the boundary region S0, identification marks F1 to F6 are knitted at intermediate positions in the X direction of the patterns P1 to P6. That is, when a straight line along the X direction is drawn across the entire width in the boundary region S0 on the assumption that the knitted fabric T is not distorted and is not bent, the maximum width in the X direction of each pattern with respect to the straight line Each identification mark is displayed at the midpoint of a line segment defined by a pair of straight lines along the sub-scanning direction passing through both end positions corresponding to. Each identification mark is formed in a line shape having a predetermined length in the Y direction, and both end positions are knitted so as to be aligned on a straight line along the X direction. The position of the identification mark in the X direction may be set at a position shifted from the middle point, and can be set as appropriate as long as it is between both end positions corresponding to the maximum width of each pattern.

  Since the identification mark is provided in the boundary region S0 in which the front and back are integrally connected, the distortion of the identification mark due to expansion and contraction can be prevented, and the pattern is provided at a position away from the pattern. Will not be affected. FIG. 4 is a schematic diagram illustrating an example of an identification mark. In this example, a plurality of long hole-like openings H are arranged in a staggered pattern over a predetermined length in a boundary region where front and back are integrally connected, and an identification mark is set. With such a configuration, the opening H is not easily crushed, and the identification mark can be reliably detected when the opening is optically detected. In this case, the length of the entire identification mark in the Y direction is preferably 50 mm to 70 mm, and the length of the opening H in the Y direction is preferably 5 mm to 30 mm. If it is less than 5 mm, the opening becomes small and optical detection becomes difficult, and if it exceeds 30 mm, the knitted fabric portion in the boundary region easily expands and contracts and the pattern easily deforms.

  As shown in FIGS. 4A to 4C, the shape of the opening H can be various shapes such as an elliptical shape, a rhombus shape, and a rectangular shape. Further, the identification mark exposed on the surface of the knitted fabric may have a cross shape or a cross shape as shown in FIGS. 4D and 4E, and can be set in various identifiable shapes. And you may make it comprise an identification mark by the shape of an intermittent line or dot.

  Moreover, you may enable it to detect an identification mark optically by making the part corresponded to the opening part H mentioned above into mesh shape, or making it uneven. Further, after the knitted fabric T is knitted, the boundary mark S0 may be optically detected by coloring an identification mark with a stamp, a pen or the like. In that case, it is printed with an arbitrary character or symbol. Also good. In this case, since the identification mark is arranged outside the recording area, even if such printing is performed, the recording area is not affected.

  The knitted fabric T is knitted in a long shape by repeatedly knitting the boundary area S0 and the recording areas S1 to S6 described above in the Y direction. If there is a space in the recording area as in the pattern of both sleeves, a plurality of patterns may be knitted in the same recording area. Even in such a case, it is desirable to perform knitting so that the intermediate positions in the X direction of the patterns coincide.

  As the knitted fabric T, recycled fibers typified by rayon, natural fibers typified by cotton, semi-synthetic fibers such as acetate, polyester-based synthetic fibers typified by polyethylene terephthalate, and aliphatic polyamide-based synthetics typified by nylon A thin knitted fabric or a thick knitted fabric using these fibers or a mixed fiber thereof can be used.

  FIG. 5 is a block diagram showing a system configuration of the inkjet recording apparatus A. As shown in FIG. The ink jet recording apparatus A includes a recording control unit 20 that controls a recording operation, an I / O interface unit 21 for exchanging data with the external device 100, and a memory unit that stores programs and image data necessary for the recording operation. 22, a head drive circuit 23 that receives a head drive control signal from the recording control unit 20 and outputs a drive signal to each of the recording head units 1Y to 1K; a carriage motor drive control signal from the recording control unit 20; A carriage motor control circuit 24 that controls the rotation of the motor 12, a conveyance motor control circuit 25 that receives a conveyance motor drive control signal from the recording control unit 20 and controls the rotation of the conveyance motor 16 that rotationally drives the belt roller 4, and an identification mark position A position detection circuit 26 that receives a detection signal from the detection sensor 15 and transmits the detection signal to the recording control unit 20 is provided. There.

  The recording control unit 20 includes a position detection processing unit 20a, an image adjustment unit 20b, and a determination unit 20c. The position detection processing unit 20a generates position data in the Y direction of the identification marks F1 to F6 based on the output signal from the position detection circuit 26, and adjusts the recording start position of the image to be recorded on the patterns P1 to P6. To do. The position detection processing unit 20a can set a predetermined range for detecting the positions of the identification marks F1 to F6, acquire a detection signal from the position detection circuit 26 within the range, and adjust the recording start position. . When setting the detection range, the next detection range may be set based on the position data of the identification mark obtained at the time of the previous recording. For detection signal acquisition, either a method of performing position detection only within a predetermined setting range or a method of acquiring only signals corresponding to the predetermined setting range among detection signals obtained for the entire scanning range may be used. Good.

  When adjusting the recording start position, the positional relationship between each identification mark is calculated as a deviation amount based on the position data in the Y direction, and the recording start position is adjusted to be shifted in the Y direction based on the deviation amount. To do. Since the knitted fabric T is conveyed in the Y direction, it becomes easy to expand and contract in the Y direction. If the patterns P1 to P6 arranged in the X direction do not expand and contract uniformly, as described above, the both end positions of each identification mark are Y in advance. Each identification mark is shifted in the Y direction when aligned in the direction. Therefore, if the recording start position of the image of each pattern is adjusted according to the shifted state, the recording operation can be accurately performed according to each pattern of the shifted state. The position may be adjusted based on the average value of the deviation amounts of adjacent identification marks.

  In order to shift the recording start position of the image of each pattern based on the position data of the identification marks F1 to F6 obtained from the position detection processing unit 20a, the image adjustment unit 20b sets each of the colorless image regions according to the shift amount. Perform processing to insert into the pattern image. Further, the size of the image recorded in each pattern may be adjusted based on the position data of the identification marks F1 to F6. For example, the size of the image in the main scanning direction is adjusted according to the expansion / contraction ratio calculated from the interval data in the X direction of each identification mark.

  The determination unit 20c determines a case of false detection such as when there is no detection signal acquired in a predetermined detection range in the position detection processing unit 20a or when there are a plurality of detection signals, and performs a recording operation stop process or an abnormality notification process. In addition, when the width of the detection signal corresponding to the width of the identification mark is abnormally large, it is assumed that wrinkles or dirt is detected, so whether the width of the detection signal with respect to the reference value is also abnormal is determined. You may make it do. In addition, when a plurality of detection signals are acquired, the position data closest to the previous detection result is determined as normal position data, or the position shift is based on the position data of the preceding and subsequent identification marks. You may make it determine so that normal position data may be selected from quantity. Alternatively, the identification mark may be detected and determined again at a location different from the position where the abnormality is detected.

  FIG. 6 shows a processing flow for performing image recording. Prior to image recording, the range of the recording area in the main scanning direction and position data relating to the identification mark are set as initial values in advance (S100). These position data are set as distance data from a reference position, for example, a side end position of the endless conveyance belt 3.

  Other initial values include position data serving as a reference for image recording, such as an image size, an interval data reference value from an identification mark to a recording area, and interval data of an identification mark.

  When the initial value is set, the detection range of the identification mark is set correspondingly (S101). For example, the detection range may be set to about ± 20 mm of the initial value of the position data of the identification mark. Next, the carriage 11 is moved to the initial position and moved over the knitted fabric T in the X direction, which is the main scanning direction, over the entire width (S102). Based on the set detection range, the positions of the identification marks F1 to F6 in the X direction are detected by the identification mark position detection sensor 15 within the range (S103). The position detection data in the X direction is checked by the determination unit 20c to determine whether it is abnormal (S104), and if it is determined to be abnormal, such as when it is not detected within the detection range, an error display is displayed and recording processing is performed. Stop.

  FIG. 7 is an explanatory diagram when the identification mark position detection sensor 15 is moved in the X direction to detect the identification mark. As shown in FIG. 7A, for the identification marks F1 to F3, the identification mark position along the scanning line L in the X direction (which will be described based on three identification marks for ease of explanation in FIG. 7). The detection sensor 15 reciprocates and performs detection. Each time the knitted fabric T scans, the scanning line L is conveyed by a predetermined interval in the Y direction, and a detection operation is performed with a predetermined interval (for example, 10 mm) shifted from the identification mark. Therefore, the scanning line L detects the surface of the knitted fabric T like L1, L2, L3. In a state where the identification marks F1 to F3 are shifted in the Y direction, the first scanning line where the tip position of each identification mark is detected is different. In this example, the tip position of the identification mark F1 is detected by the scanning line L1, the tip position of the identification mark F2 is detected by the scanning line L2, and the tip position of the identification mark F3 is detected by the scanning line L3 (each scanning line). ) For each identification mark indicates the presence or absence of detection). Then, all the identification marks are detected on the scanning line L3, and the detection of the position of the identification mark in the X direction is completed.

  If it is determined that the position detection data in the X direction is normal, the position of each identification mark in the Y direction is detected (S105). FIG. 7B is an explanatory diagram when position detection in the Y direction is performed. In this case, the scanning line interval (for example, 5 mm) is set to be smaller than the position detection in the X direction shown in FIG. All the identification marks are detected in the scanning line L4, and scanning is sequentially performed, and the identification mark F1 is not detected first in the scanning line L6. Subsequently, the identification mark F2 is not detected on the scanning line L8, and all the identification marks are not detected on the scanning line L9. Therefore, position detection data in the Y direction regarding the rear end position of each identification mark can be obtained based on the position in the Y direction of the scanning line that is no longer detected. Whether or not the position detection data in the Y direction is abnormal is checked by the determination unit 20c (S106), and if it is determined to be abnormal, an error display is performed and the recording process is stopped.

  When it is determined that the position detection data in the Y direction is normal, the identification mark whose rear end position is no longer detected among the identification marks is set as a reference identification mark (S107), and the position detection data in the Y direction is set. Based on this, the amount of deviation between the reference identification mark and other identification marks is calculated (S108). For example, in the case shown in FIG. 7B, the identification mark F1 is set as the reference identification mark, and the deviation amount of the identification mark F2 is two scanning lines (5 mm × 2 = 10 mm), and the deviation amount of the identification mark F3. Corresponds to three scanning lines (5 mm × 3 = 15 mm).

  Based on the shift amount thus calculated, the recording start position of each pattern image is set to shift (S109). As shown in FIG. 7C, the recording start position of the image of the pattern P2 corresponding to the identification mark F2 is shifted in the Y direction by the length d1 from the recording start position of the image of the pattern P1 corresponding to the identification mark F1. Thus, a colorless image region is inserted. A colorless image region is also inserted so that the recording start position of the image of the pattern P3 corresponding to the identification mark F3 is shifted by the length d2 in the Y direction from the recording start position of the image of the pattern P1.

  Then, the knitted fabric T is controlled to be conveyed in the Y direction in order to set the carriage 11 on the scanning line for starting the image recording operation, and image recording of each pattern arranged in the X direction is performed at one time (S110). The carriage 11 is moved over the entire width of the knitted fabric T in the X direction, and after recording on one scanning line by the ink jet recording head 1, the endless transport belt 3 is transported for one scanning line in the Y direction. The image of each pattern is recorded by repeating recording and conveyance in the Y direction. Since each pattern image has a recording start position shifted in advance by inserting a colorless image area corresponding to the shift amount of each pattern, the image is accurately recorded according to each shifted pattern. Will come.

  When the image recording process for each pattern is completed, it is checked whether there is a recording area for the next pattern image (S111). If there is a next recording area, the process returns to step S101, and the next recording area is recorded. Set the detection range. When setting the detection range, the previously set detection range may be used as it is. However, if the detection range is set based on the position data of the identification mark detected last time, the detection range can be further narrowed down, resulting in false detection. Can be reduced. The detection range may be changed such that it is wide at the start of printing when the expansion and contraction of the fabric is not stable, or after passing through the joint where the identification line position is likely to change, and narrowed otherwise.

  Thereafter, as described above, the same processing as the previous time is performed, and the recording operation for the next recording area is performed. Then, when there is no next recording area, the image recording process is terminated.

  In this embodiment, the identification mark position detection sensor 15 is mounted on the carriage together with the ink jet recording head 1, but the identification mark position detection sensor 15 performs scanning separately from the carriage. The method for installing the detection sensor is not particularly limited. When the identification mark position detection sensor is moved separately, the ink jet recording head can be a line type recording head over the entire recording area.

It is a schematic block diagram regarding embodiment which concerns on this invention. It is a schematic perspective view regarding the mechanism which performs image recording. It is a schematic diagram which shows the surface of a knitted fabric. It is an expansion schematic diagram which shows an identification mark. It is a block diagram which shows the system configuration | structure of an inkjet recording device. It is a processing flow which performs image recording. It is explanatory drawing regarding the case where position detection and image recording are performed.

Explanation of symbols

F Identification mark P Pattern T Knitted fabric 1 Inkjet recording head 2 Centering roller 3 Endless conveying belt 4 Belt roller 5 Pressing roller 6 Take-up roller 7 End position detection sensor 8 Supply roller
10 Guide rail
11 Carriage
12 Carriage motor
13 Timing belt
14 Flexible cable
15 Identification mark position detection sensor

Claims (5)

After the recording, a plurality of patterns separated along the outline are knitted in the main scanning direction and arranged in a stretchable knitted fabric in the sub-scanning direction, and an ink jet recording head records an image on each pattern. An ink jet recording method for displaying on the surface of a knitted fabric corresponding to each of the patterns in a boundary region set over the entire width in the main scanning direction at a position immediately before the sub scanning direction of the recording region set for the pattern And detecting the positional relationship between the plurality of identification marks arranged in the main scanning direction, adjusting the recording start position of the pattern corresponding to the identification mark based on the detected positional relationship of the identification marks, and using the inkjet recording head An ink jet recording method, wherein an image is recorded according to a degree of expansion and contraction for each pattern.   2. The ink jet recording method according to claim 1, wherein the identification mark is displayed at an intermediate position in the main scanning direction with respect to the pattern.   The inkjet recording method according to claim 1, wherein the identification mark is displayed at a position immediately before the pattern in the sub-scanning direction.   The inkjet recording method according to claim 1, wherein the identification mark is knitted on a knitted fabric.   5. The ink jet recording method according to claim 1, wherein the positional relationship between the identification marks is detected by detecting a shift amount between the identification marks in the sub-scanning direction. 6.

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