WO2019105482A1 - 利用数码喷印机的纺织品的双面喷墨印花方法及纺织品 - Google Patents

利用数码喷印机的纺织品的双面喷墨印花方法及纺织品 Download PDF

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WO2019105482A1
WO2019105482A1 PCT/CN2018/118878 CN2018118878W WO2019105482A1 WO 2019105482 A1 WO2019105482 A1 WO 2019105482A1 CN 2018118878 W CN2018118878 W CN 2018118878W WO 2019105482 A1 WO2019105482 A1 WO 2019105482A1
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Prior art keywords
textile
pattern
printing
digital
reverse
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PCT/CN2018/118878
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English (en)
French (fr)
Inventor
许黎明
黄宇渊
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杭州宏华数码科技股份有限公司
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Priority to ES18883245T priority Critical patent/ES2969656T3/es
Priority to EP18883245.5A priority patent/EP3674083B1/en
Publication of WO2019105482A1 publication Critical patent/WO2019105482A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/048—Conveyor belts or like feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/30—Ink jet printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2203/00—Embodiments of or processes related to the control of the printing process
    • B41J2203/01—Inspecting a printed medium or a medium to be printed using a sensing device

Definitions

  • the invention relates to the field of textile printing and dyeing, in particular to a double-sided inkjet printing method, device, digital jet printer and textile for textiles.
  • the digital printing machine that realizes digital printing generally includes: digital nozzle, guide belt and control system.
  • the textile to be printed is placed on the guide belt, the target pattern is input into the control system, and the control system controls the digital nozzle. , the target pattern is printed on the textile.
  • the textile needs to be double-sided printed, that is, the front and back sides of the textile are subjected to printing treatment, thereby solving the problem that the single-side printing of the textile is not beautiful and affects the quality.
  • the prior art is difficult to implement in the process when the front and back prints are identical and need to be perfectly aligned.
  • the prior art uses a well-permeability dye for single-sided printing and penetrates the other side of the textile through the dye to achieve the effect of double-sided printing, but the well-permeability dye is easily spread on the textile, thereby Affect quality.
  • FIG. 5 is a target pattern
  • FIG. 6 is a state diagram in which the front side of the textile is printed and the reverse side is placed.
  • the textile is flexible. The material is easily distorted when placed. When placed on the reverse side, it is impossible to maintain the same position as when the front side is placed. At this time, the digital printer cannot align the front and back patterns by the regular printing of the target pattern.
  • the concentration of each raw material in the sizing solution is: Na2CO3 20 ⁇ 40g / L, urea 60 ⁇
  • the drying temperature is 100-120 ° C; after drying, the fabric is rolled to ensure that the fabric is rolled up neatly;
  • the tenter is soft and pre-shrinked.
  • an embodiment of the present invention provides a double-sided inkjet printing method and a textile of a textile using a digital jet printer, which can realize alignment and coincidence of the front and back patterns on the double-sided printing on the textile, and greatly improve The user's satisfaction with this type of product.
  • Embodiments of the present invention provide a double-sided inkjet printing method for textiles using a digital jet printer.
  • the digital jet printer includes:
  • a digital print head configured to perform a printing operation according to a target pattern
  • a control system comprising a storage unit configured to store related data, a processing unit configured to receive, process, and transmit data, the control unit configured to control the processing unit to perform data Processing and sending print signals;
  • An image acquisition unit configured to perform image acquisition on the textile and transmit the acquired image to a storage unit of the control system
  • a material feeding device comprising a frame and a conduction belt, the conduction belt is disposed on the frame, the printing belt is provided with a printing area, and the digital nozzle is disposed on the printing area;
  • the textile is placed in the printing area of the conduction belt, the control unit sends a printing signal to the digital nozzle, and the stored target pattern is printed on the front side of the textile through the digital nozzle to form a front printing pattern;
  • the textile is turned over onto the guide tape, and the printed front surface pattern penetrating on the reverse side of the textile is collected by the image collecting unit, and the pattern is the reverse pattern of the front printing pattern of the textile, and the opposite side of the image collecting unit is collected.
  • the pattern is transmitted to the storage unit;
  • the adjusted mirror target pattern is printed on the reverse side of the textile through a digital print head.
  • the front and back sides of the textile are not specifically defined, such as one side designated as the front side and the other side being the reverse side;
  • the adjusting, by the processing unit, the mirror target pattern comprises the following steps:
  • the processing unit identifies a corresponding feature point of the reverse pattern collected by the image acquisition unit, and calculates a deviation from the corresponding feature point in step a;
  • the processing unit adjusts the mirror target pattern according to the deviation obtained in the step b, so that the feature points on the mirror target pattern are aligned with the corresponding feature points of the reverse pattern collected by the image collecting unit, so that the mirror target pattern and the image collection are performed.
  • the reverse pattern collected by the unit is aligned.
  • the textile is dried after the printing of the front pattern is completed.
  • the mirror image pattern is first subjected to gray processing to obtain a gray scale template of the mirror image target pattern.
  • the image acquisition unit is a scanning device or a camera.
  • the conductive tape is provided with a thermal adhesive or a pressure sensitive adhesive, so that the textile can be pasted on the conductive tape.
  • 0.5 to 3 feature points are selected per square inch, and when the feature points are selected, points that are easy to be aligned and positioned on the pattern are selected, and feature points are not set in a single color where the pattern does not change.
  • the digital printer further includes a walking unit configured to be movable in a direction perpendicular to a feeding direction of the conduction belt, the digital nozzle and the image capturing unit are disposed on the walking unit, and the image collecting unit moves with the walking unit And collect the reverse image in real time.
  • a walking unit configured to be movable in a direction perpendicular to a feeding direction of the conduction belt, the digital nozzle and the image capturing unit are disposed on the walking unit, and the image collecting unit moves with the walking unit And collect the reverse image in real time.
  • the deviation between the mirror target pattern and the reverse pattern collected by the image acquisition unit is large, it is allowed to manually observe to determine whether the alignment is performed. If the alignment is not aligned, the manual intervention method is used.
  • the mirror target pattern is adjusted such that its feature points are aligned with corresponding feature points on the reverse pattern collected by the image acquisition unit.
  • one feature point is selected per square inch, and a large area of the background color or the blank area is not provided with the feature point, and the feature point needs to be selected for the position where the alignment is required.
  • a textile having a front side printing and a reverse side printing, wherein the front side printing and the reverse side printing are respectively disposed on the front and back sides of the textile, and the front side printing and the reverse side printing are aligned, wherein the front side printing and the reverse side printing on the textile fabric are as described above.
  • the invention has the following advantages and effects: when printing the double-sided printing of the textile, the first target pattern is printed first, and then the textile is turned over, and the back surface of the textile is firstly collected and infiltrated into the back of the textile before the mirror image is printed.
  • the actual reverse pattern and adjust the mirror target pattern to align with the actual reverse pattern collected, and then print the mirror target pattern to ensure the alignment and coincidence of the double-sided printing pattern, and solve the existing double-sided printing
  • the method can not achieve the problem of double-sided alignment and coincidence, and improves the quality of double-sided printing of textiles, so that the printing color is more full.
  • Fig. 1 is a control principle diagram in the first embodiment.
  • Fig. 2 is a diagram showing the hardware configuration in the first embodiment.
  • Embodiment 3 is a process flow diagram in Embodiment 2.
  • Embodiment 4 is a schematic view of the front and back surfaces of Embodiment 3.
  • FIG. 5 is an example of a target pattern.
  • Fig. 6 is a view showing a state in which the front side of the textile is printed and the reverse side is placed.
  • top, bottom, left, right, front, and back orientations in the following embodiments are only based on the relative concepts in the drawings or the normal use state of the product, and should not be considered as It is restrictive.
  • the digital jet printer in this embodiment includes a digital print head 1, a control system 2, an image acquisition unit 3, and a material feeding device 4.
  • the digital print head 1 is connected to the control system 2, and the image acquisition unit 3 is connected to the control system 2.
  • the digital printer also includes some peripheral interfaces, display screens and external ports, etc., which are not described here.
  • the various components shown in FIG. 1 can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the digital head 1 in this embodiment is configured to perform a printing operation according to a target pattern.
  • the control system 2 in this embodiment includes a storage unit 21, a processing unit 22, and a control unit 23, and the storage unit 21 is configured to store related data including but not limited to a target pattern input from the outside, a mirror target.
  • the image acquisition unit 32 is connected to the storage unit 21, and the processing unit 22 is configured to receive, process, and transmit data, wherein the processing of the data includes, but is not limited to, selection of feature points, The mirroring process of the target pattern, obtaining the mirror image pattern, the alignment process with the acquired pattern, and the image conversion to the grayscale template, etc.
  • the processing unit 22 is connected to the storage unit 21, and the control unit 23 is configured to be used by the control processing unit 22.
  • the processing of the data and the transmission of the print signal are connected to the processing unit 22 and the digital head 1 by the control unit 23, respectively.
  • the above components may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the image acquisition unit 3 in this embodiment is configured to perform image acquisition on the textile and transmit the acquired image to the storage unit 21 of the control system 2.
  • the image acquisition unit 3 is selected from a scanning device or a camera or the like as long as the pattern on the textile can be obtained.
  • the material feeding device 4 in this embodiment comprises a frame 41 and a conduction belt 42.
  • the conduction belt 42 is disposed on the frame 41.
  • the printing belt 42 is provided with a printing area, and the digital head 1 is disposed on the printing area.
  • the guide belt 42 is fed by the power unit.
  • the power device includes a motor, a driving wheel and a driven wheel.
  • the motor is coupled to the driving wheel and controls the rotation of the driving wheel.
  • the guiding belt is wound around the driving wheel and the driven wheel, and thereby drives the rotation.
  • the conductive tape or pressure sensitive adhesive is disposed on the conductive tape 42 in this embodiment, and when the textile is placed on the conductive tape 42, the textile can be completely flattened and held on the conductive tape 42. Prevent the textile from partially arching or wrinkling, etc., to facilitate printing and ensure the accuracy of printing.
  • the digital jet printer in this embodiment further includes a walking unit 5 configured to be movable in a direction perpendicular to the feeding direction of the conduction belt 42, and the digital head 1 and the image capturing unit 3 are disposed on the walking unit 5, The image capturing unit 3 and the digital head 1 have a certain distance along the guiding direction of the conduction belt, and the image is moved in real time as the traveling unit 5 moves. After the textile is finished feeding by the guide belt 42, the digital nozzle 1 is printed by the walking unit 5, and the image collecting unit 3 can collect a reverse pattern of the fabric to be printed.
  • the control unit 23 input and print the target pattern, introduce the target pattern into the storage unit 21 of the control system 2, the control unit 23 sends a print signal to the digital head 1, and prints the stored target pattern to the front side of the textile through the digital head 1, and dries , the target pattern input can be before step 1);
  • the processing unit 22 mirrors the target pattern to obtain a mirror image pattern, and stores the mirror image pattern in the storage unit 21, where step 4) is performed before printing on the reverse side of the textile;
  • Pattern mirroring can also be done on a computer outside the system, copy it and use it;
  • the image acquisition unit 3 collects a graphic of the unprinted side of the textile, the graphic is a permeation pattern of the front graphic of the textile, that is, the reverse pattern of the front printing pattern of the textile, and the reverse pattern collected by the image collecting unit 3 is transmitted to the storage unit. twenty one,;
  • the mirror target pattern is adjusted by the processing unit 22 to be aligned with the reverse pattern collected by the image acquisition unit 3 (the acquired reverse pattern is compared with the feature points of the mirror target pattern) And adjusting), so that the target pattern of the actual output can be completely matched with the collected pattern.
  • the processing unit 22 according to the collected reverse pattern to adjust the mirror image pattern, the front and back of the textile pattern can be completely aligned, solving the prior art textile front and back can not be precisely aligned The problem;
  • step 7 The reverse side of the textile is printed, and the adjusted mirror image is printed on the reverse side of the textile through the digital nozzle 1. After step 7), if necessary, a drying process is performed.
  • step 6 the processing unit 22 adjusts the mirror target pattern to include the following steps:
  • processing unit 22 identifies corresponding feature points on the reverse pattern collected by the image acquisition unit 3, and obtains a deviation from the corresponding feature point in step a;
  • the processing unit 22 adjusts the mirror image pattern according to the deviation obtained in step b, and aligns the feature points on the mirror target pattern with the corresponding feature points on the reverse pattern collected by the image capturing unit 3, thereby making the mirror target pattern and the image
  • the reverse pattern collected by the acquisition unit 3 is aligned.
  • the textile is subjected to a drying treatment to prevent subsequent treatment in the case where the dye is not dried, thereby affecting the occurrence of the printing quality.
  • step a before the feature point is selected on the mirror image pattern, the mirror image pattern is first used as the gray scale template, and the processed image resolution is 150 DPI or 300 DPI.
  • the processed image resolution is 150 DPI or 300 DPI.
  • step a when the feature points are specifically selected, 0.5 to 3 feature points are selected per square inch, and when the feature points are selected, points that are easy to be aligned and positioned on the graphic, such as line intersections or line corners, are selected. Wait.
  • step c is used to align the mirror target pattern with the reverse pattern collected by the image acquisition unit 3. If the deviation is large, manual observation is allowed, and whether or not the alignment is determined. If the alignment is not aligned, the artificial In the manner of intervention, the mirror target pattern is manually adjusted so that its feature points are aligned with corresponding feature points on the reverse pattern collected by the image acquisition unit 3. The above manual observation can also be automatically detected by the processing unit 22, and automatically jumped to align the feature points.
  • step a when feature points are selected, one feature point is selected per square inch.
  • the plurality of mirror image patterns in this embodiment are continuously tiled, which can realize continuous printing and improve efficiency.
  • the embodiment provides a textile having a front printing and a reverse printing.
  • the front printing and the reverse printing are respectively disposed on the front and back sides of the textile, and the front printing and the reverse printing are aligned, and the front side of the textile is aligned.
  • the printing and reverse printing were carried out by the double-sided inkjet printing method of Example 2.
  • the front side printing and the reverse side printing in this embodiment have corresponding feature points.
  • the textile in this embodiment can be applied to silk scarves, scarves, clothing fabrics, and the like.

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  • Treatment Of Fiber Materials (AREA)
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Abstract

一种利用数码喷印机的纺织品的双面喷墨印花方法及纺织品。其中喷墨印花方法包括以下步骤：1)将目标图案导入存储单元（21）；2)对目标图案进行镜像处理，获得镜像目标图案，保存到存储单元（21）中；3)将纺织品放置到导带（42）的喷印区域，通过数码喷头（1）将目标图案打印到纺织品的正面上，形成正面印花图案；4)将纺织品翻面放置到导带上，利用图像采集单元（3）采集纺织品反面上渗透的图案，传输至存储单元（21）；5)通过处理单元（22）对镜像目标图案进行调整，使之与图像采集单元（3）采集到的反面图案对准；6)将调整后的镜像目标图案通过数码喷头（1）打印到纺织品的反面上。

Description

利用数码喷印机的纺织品的双面喷墨印花方法及纺织品
本发明要求于2017年12月01日提交中国专利局、申请号为201711248858.X、申请名称为“利用数码喷印机的纺织品的双面喷墨印花方法及纺织品”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及纺织印染领域，具体涉及一种纺织品的双面喷墨印花方法、装置、数码喷印机和纺织品。
背景技术
随着计算机技术不断发展，逐渐形成了一种集机械、计算机及电子信息技术为一体的高新技术——数码印花，即，利用数码技术进行印花。这项技术的出现与不断完善，给纺织印染行业带来了一个前所未有的发展机遇。
目前，实现数码印花的数码喷印机，一般包括：数码喷头、导带和控制系统，使用时，将待喷印的纺织品放置在导带上，将目标图案输入控制系统，控制系统控制数码喷头，将目标图案喷印在纺织品上。
现有技术中，出于某些需要，需要对纺织品进行双面印花处理，即纺织品的正反面均进行印花处理，以此解决纺织品单面印花不够美观，影响品质的问题。当正反面的印花一致，且需要完全对准时，现有技术在工艺上难以实现。比如，现有技术采用渗透性好的染料进行单面印花，并通过染料渗透到纺织品的另一面，以达到双面印花的效果，但是这种渗透性好的染料容易在纺织品上化开，从而影响品质。还有一种是采用传统的方式，通过两个滚筒分别对纺织品的两面进行处理，但是这种方法，纺织品两面的印花不容易对准，影响美观。又比如，通过数码印花进行正反面印花时，如图5和图6所示，图5为目标图案，图6为纺织品正面打印完，而反面放置时的状态图，图6中，纺织品是柔性材料，放置时很容易扭曲变形，反面放置时，不可能保持与正面放置时的相同位置，此时，数码喷印机无法通过目标图案的常规打印而使正反面图形对准。
申请公布号为CN 105926331 A，申请公布日为2016年9月7日的中国发明专利申请中，公开了一种纯棉双面喷墨印花面料的制作方法，其特征在于采用以下步骤：
1)前处理，依次加工烧毛-退浆-煮练-氧漂-丝光，其中丝光工序中NaOH浓度为180g/L
～320g/L；
2)织物预处理，采用浸轧上浆，上浆液中各原料的浓度为：Na2CO3 20～40g/L，尿素60～
90g/L，浆料Lyoprint RD-HT 12～25g/L，浆料Lyoprint ATP-30 15～25g/L，抗还原剂
LyoprintRG 2～15g/L，HPU liq防渗剂6～12g/L，上浆后先进行80～90℃预烘，预烘
后再进行烘干，烘干温度100～120℃；烘干后面料进行打卷，保证面料打卷整齐；
3)在活性喷墨印花机上进行单面喷墨打印，烘干、整齐打卷；
4)在活性喷墨印花机上喷印另一面花型，烘干；
5)蒸化，102℃蒸化10～14min，蒸化后进行水洗，去除织物表面的浮色及助剂；
6)拉幅柔软、预缩。
上述发明申请中，仅适用于制得双面不同花型效果的面料，无法满足双面相同且对应花型的要求。随着用户对纺织品双面印花工艺要求的逐渐提高，但当纺织品面料比较薄或呈半透明状时，正反面的印花是否对准、重合一致是衡量印花质量和产品美观度的主要指标，直接影响印花产品的质量，但是，要做到正反面印花图案相互对准、重合，现有的印花技术，在工艺上难以实现。
发明内容
为了解决上述问题，本发明实施例提供了一种利用数码喷印机的纺织品的双面喷墨印花方法及纺织品，可以实现在纺织品上双面印花时正反面图案的对准、重合，大大提高了用户对该类产品的满意度。
本发明实施例提供了一种利用数码喷印机的纺织品的双面喷墨印花方法，
所述数码喷印机包括：
数码喷头，其配置为根据目标图案进行喷印动作；
控制系统，其包括存储单元、处理单元和控制单元，所述存储单元配置为存储相关数据，所述处理单元配置为进行数据的接收、处理和发送，控制单元配置为用于控制处理单元进行数据的处理和发送打印信号；
图像采集单元，其配置为对纺织品进行图像采集，并将采集的图像传输至控制系统的存储单元；以及
物料进给装置，其包括机架和导带，导带设置在机架上，导带上设置喷印区域，所述数码喷头设置在喷印区域上；
所述印花方法的特征在于，包括以下步骤：
将需要进行双面印花的目标图案导入所述控制系统的所述存储单元中；
对所述目标图案进行镜像处理，获得镜像目标图案，保存到所述存储单元中；
将纺织品放置到所述导带的喷印区域中，控制单元发送打印信号给数码喷头，将存储的所述目标图案通过数码喷头打印到纺织品的正面上，形成正面印花图案；
将纺织品翻面放置到所述导带上，利用图像采集单元采集纺织品反面上渗透的已印花的所述正面图案，该图案为纺织品正面印花图案的反面图案，图像采集单元将采集的所述反面图案传输至存储单元；
通过所述处理单元所述镜像目标图案进行调整，使之与图像采集单元采集到的反面图案对准；
将调整后的所述镜像目标图案通过数码喷头打印到纺织品的反面上。
本发明中纺织品正、反面没有具体定义，如其中一面指定为正面，另一面则是反面；
优选的，所述处理单元对镜像目标图案进行调整包括以下步骤：
a在镜像目标图案上选取若干特征点；
b处理单元识别图像采集单元采集到的所述反面图案的对应的特征点，并计算出与步骤a中对应特征点的偏差；
c处理单元根据步骤b中得到的偏差来调整镜像目标图案，使镜像目标图案上的特征点与图像采集单元采集到的所述反面图案的对应特征点对准，从而使镜像目标图案与图像采集单元采集到的所述反面图案对准。
优选的，在完成正面图案的印花后，对纺织品进行烘干处理。
优选的，在镜像目标图案上选取特征点前，先对镜像目标图案进行灰度处理，获得所述镜像目标图案的灰度模板。
可选的，所述图像采集单元为扫描装置或相机。
可选的，所述导带上设置热敏胶或压敏胶，使纺织品能被黏贴铺平在导带上。
可选的，在镜像目标图案上，每平方英寸上选取0.5至3个特征点，特征点选取时，选取图案上容易对准和定位的点，图案没有变化的单一颜色处不设置特征点。
所述数码喷印机还包括行走单元，行走单元配置为可沿垂直于导带进给方向的方向移动，所述数码喷头和图像采集单元均设置在行走单元上，图像采集单元随行走单元移动，并实时采集反面图像。
可选的，当镜像目标图案与图像采集单元采集到的反面图案对准过程中偏差较大时，允许再通过人工观察，判断是否对准，如未对准，则通过人工干预的方式，手动调整镜像目标图案，使其特征点与图像采集单元采集到的所述反面图案上的对应特征点对准。
可选的，对镜像目标图案选取特征点时，每平方英寸上选取1个特征点，大面积的底色或空白处，不设置特征点，有对准要求的位置需要选取特征点。
一种纺织品，其具有正面印花和反面印花，正面印花和反面印花分别设置在纺织品的正反面，且正面印花和反面印花对准，其特征在于，所述纺织品上的正面印花和反面印花采用上述任一所述的利用数码喷印机的纺织品的双面喷墨印花方法所形成。
本发明与现有技术相比，具有以下优点和效果：对纺织品双面印花时时，通过先喷印正面目标图案，再将纺织品翻个面，在喷印镜像目标图案前，先采集渗透到纺织品背面的实际的反面图案，并调整镜像目标图案使之与采集到的实际的反面图案对准，然后喷印镜像目标图案，保证了双面印花图案的对准、重合，解决了现有双面印花方法无法实现双面对准、重合一致的问题，提高了纺织品的双面印花质量，使印花色彩更加饱满。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是实施例1中的控制原理图。
图2是实施例1中的硬件结构图。
图3是实施例2中的工艺流程图。
图4是实施例3的正反面的示意图。
图5是目标图案的示例。
图6是纺织品上正面打印完成，而反面放置时的状态图。
具体实施方式
下面结合附图并通过实施例对本发明作进一步的详细说明，以下实施例是对本发明的解释而本发明并不局限于以下实施例。
还需要说明的是，以下实施例中的上、下、左、右、前、后等方位用语，仅是以附图中的相对概念或是产品的正常使用状态为参考，而不应该认为是具有限制性的。
实施例1
现在详细参考附图中描述的实施例。为了全面理解本发明，在以下详细描述中提到了众多具体细节。但是本领域技术人员应该理解，本发明可以无需这些具体细节而实现。
如图1和图2所示，本实施例中的数码喷印机包括数码喷头1、控制系统2、图像采集单元3和物料进给装置4，数码喷头1与控制系统2连接，图像采集单元3与控制系统2连接。另外，数码喷印机还包括一些外设接口、显示屏和外部端口等，此处不一一描述。图1所示的各种组件可以用硬件、软件或软硬件的组合来实现，包括一个或多个信号处理和/或专用集成电路。
本实施例中的数码喷头1，其配置为根据目标图案进行喷印动作。
本实施例中的控制系统2，其包括存储单元21、处理单元22和控制单元23，所述存储单元21配置为存储相关数据，该相关数据包括但不限于从外部输入的目标图案、镜像目标图案和采集到的实时反面图案等，图像采集单元 32与存储单元21连接，所述处理单元22配置为进行数据的接收、处理和发送，其中，数据的处理包括但不限于特征点的选取、目标图案的镜像处理、获得镜像目标图案、与采集到的图案的对准处理和图像转为灰度模板等，处理单元22与存储单元21连接，控制单元23配置为用于控制处理单元22进行数据的处理和打印信号的发送，控制单元23分别与处理单元22和数码喷头1连接。上述部件可以用硬件、软件或软硬件的组合来实现，包括一个或多个信号处理和/或专用集成电路。
本实施例中的图像采集单元3，其配置为对纺织品进行图像采集，并将采集的图像传输至控制系统2的存储单元21。图像采集单元3选自为扫描装置或相机等，只要能获取纺织品上的图案即可。
本实施例中的物料进给装置4，其包括机架41和导带42，导带42设置在机架41上，导带42上设置喷印区域，数码喷头1设置在喷印区域上。导带42通过动力装置实现进给。具体的，动力装置包括电机、主动轮和从动轮，电机与主动轮连接并控制主动轮转动，导带绕设在主动轮和从动轮上，并由此带动转动。
本实施例中的导带42上设置热敏胶或压敏胶，纺织品放置到导带42上时，可使纺织品完全铺平并保持在导带42上。防止纺织品部分拱起或起皱等，方便进行喷印，确保喷印的精度。
本实施例中的数码喷印机还包括行走单元5，行走单元5配置为可沿垂直于导带42进给方向的方向移动，数码喷头1和图像采集单元3均设置在行走单元5上，图像采集单元3与数码喷头1沿导带前进方向有一定距离，随行走单元5移动，可实时采集图像。纺织品通过导带42完成一次进给后，数码喷头1通过行走单元5而进行一次喷印，同时，图像采集单元3可采集一幅待打印面料的反面图形。
实施例2
本实施例中的利用上述数码喷印机的纺织品的双面喷墨印花方法，包括以下步骤：
1)放置纺织品，将纺织品黏贴放置在物料进给装置4的导带42上，通过在导带42上设置热敏胶或压敏胶，防止纺织品移动或起皱等；
2)将目标图案输入并打印，将目标图案导入控制系统2的存储单元21，控制单元23发送打印信号给数码喷头1，将存储的目标图案通过数码喷头1打印到纺织品的正面，并烘干，目标图案输入可在步骤1)之前；
3)翻面放置纺织品，纺织品的正面图形打印完成后，将纺织品翻面放置到导带42上，使纺织品未打印的一面相对数码喷头1设置；
4)目标图案镜像处理，处理单元22将目标图案镜像，得到镜像目标图案，并将镜像目标图案存储到存储单元21，此处的步骤4)，只要在纺织品反面进行打印之前进行即可；目标图案镜像处理也可以在本系统外的电脑上完成，复制过来使用即可；
5)纺织品图像采集，图像采集单元3采集纺织品未打印的一面的图形，该图形为纺织品正面图形的渗透图形，即纺织品正面印花图案的反面图案，图像采集单元3采集的反面图案传输至存储单元21，；
6)镜像目标图案的调整处理，通过处理单元22对镜像目标图案进行调整，使之与图像采集单元3采集到的反面图案对准(将采集到的反面图案与镜像目标图案的特征点比对，并调整)，以此，可使实际输出的目标图案与采集到的图形完全对应，当纺织品正面打印完成，而将反面放置到导带42上时，纺织品上的图形难免存在拉伸、扭曲、变形等情况，而此处，通过处理单元22，根据采集到的反面图案来调整镜像目标图案，可使纺织品正反面的图形完全对准，解决了现有技术中纺织品正反面无法精确对准的问题；
7)纺织品的反面打印，将调整后的镜像目标图案通过数码喷头1打印到纺织品的反面。步骤7)之后，如需要，则进行烘干处理。
具体的，在步骤6)中，处理单元22对镜像目标图案进行调整包括以下步骤：
a在镜像目标图案上选取若干特征点；
b处理单元22识别图像采集单元3采集到的反面图案上的相应的特征点，求出与步骤a中对应特征点的偏差；
c处理单元22根据步骤b中得到的偏差，调整镜像目标图案，使镜像目标图案上的特征点与图像采集单元3采集到的反面图案上的对应特征点对准，从而使镜像目标图案与图像采集单元3采集到的反面图案对准。
本实施例在步骤2)之后，对纺织品进行烘干处理，以防止染料未干的情况下进行后续处理，从而影响印花品质的情况的发生。
本实施例在步骤a中，在镜像目标图案上选取特征点前，先将镜像目标图案作为灰度模板，处理后的图像分辨率为150DPI或300DPI。这样做的好处在于，可降低镜像目标图案的像素，加快处理单元22的处理速度，从而可提高工作效率。但某些颜色的彩图识别困难(不转换灰度，直接用彩色图形也可以，只是识别速度略慢，好处是各种颜色的彩图都能识别)。
本实施例在步骤a中，具体选取特征点时，每平方英寸上选取0.5至3个特征点，特征点选取时，选取图形上容易对准和定位的点，比如线条交叉处或线条转角处等。
本实施例中步骤c使镜像目标图案与图像采集单元3采集到的反面图案对准过程中，如果偏差较大，允许再通过人工观察，并判断是否对准，如未对准，则通过人工干预的方式，手动调整镜像目标图案，使其特征点与图像采集单元3采集到的反面图案上的对应特征点对准。上述人工观察也可改为处理单元22自动检测，并自动跳转，从而使特征点对准。
优选的，在步骤a中，选取特征点时，每平方英寸上选取1个特征点。关于特征的选取数量，特征点越多，则对准的精度越高，但运算量越大。
本实施例中的多个镜像目标图案连续平铺，可实现连续打印，提高效率。
实施例3
如图4所示，本实施例提供了一种纺织品，其具有正面印花和反面印花，正面印花和反面印花分别设置在纺织品的正反两面，且正面印花和反面印花对准，纺织品上的正面印花和反面印花采用实施例2中的双面喷墨印花方法所形成。
本实施例中的正面印花和反面印花上具有对应的特征点。
本实施例中的纺织品可应用于丝巾、围巾、衣服面料等。
本说明书中所描述的以上内容仅仅是对本发明所作的举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离本发明说明书的内容或者超越本权利要求书所定义的范围，均应属于本发明的保护范围。

Claims (12)

  1. 一种利用数码喷印机的纺织品的双面喷墨印花方法，所述数码喷印机包括：
    数码喷头，其配置为根据目标图案进行喷印动作；
    控制系统，其包括存储单元、处理单元和控制单元，所述存储单元配置为存储相关数据，所述处理单元配置为进行数据的接收、处理和发送，控制单元配置为用于控制处理单元进行数据的处理和发送打印信号；
    图像采集单元，其配置为对纺织品进行图像采集，并将采集的图像传输至控制系统的存储单元；以及
    物料进给装置，其包括机架和导带，导带设置在机架上，导带上设置喷印区域，所述数码喷头设置在喷印区域上；
    所述印花方法的特征在于，包括以下步骤：
    1)将需要进行双面印花的目标图案导入所述控制系统的所述存储单元中；
    2)对所述目标图案进行镜像处理，获得镜像目标图案，保存到所述存储单元中；
    3)将纺织品放置到所述导带的喷印区域中，控制单元发送打印信号给数码喷头，将存储的所述目标图形通过数码喷头打印到纺织品的正面上，形成正面印花图案；
    4)将纺织品翻面放置到所述导带上，利用图像采集单元采集纺织品反面上渗透的已印花的所述正面图案，该图案为纺织品正面印花图案的反面图案，图像采集单元将采集的所述反面图案传输至存储单元；
    5)通过所述处理单元对步骤2)中所述镜像目标图案进行调整，使之与图像采集单元采集到的反面图案对准；
    6)将调整后的所述镜像目标图案通过数码喷头打印到纺织品的反面上。
  2. 根据权利要求1所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，
    在步骤5)中，处理单元对镜像目标图案进行调整包括以下步骤：
    a在镜像目标图案上选取若干特征点；
    b处理单元识别图像采集单元采集到的所述反面图案的对应的特征点，并计算出与步骤a中对应特征点的偏差；
    c处理单元根据步骤b中得到的偏差来调整镜像目标图案，使镜像目标图案上的特征点与图像采集单元采集到的所述反面图案的对应特征点对准，从而使镜像目标图案与图像采集单元采集到的所述反面图案对准。
  3. 根据权利要求1所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，在步骤3)之后，对纺织品进行烘干处理。
  4. 根据权利要求2所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，在步骤a中，在镜像目标图案上选取特征点前，先将镜像目标图案作为灰度模板。
  5. 根据权利要求1所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，所述图像采集单元为扫描装置或相机。
  6. 根据权利要求1所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，所述导带上设置热敏胶或压敏胶，使纺织品完全铺平在导带上。
  7. 根据权利要求2所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，在步骤a中，选取特征点时，每平方英寸上选取0.5至3个特征点，特征点选取时，选取图形上容易对准和定位的点，图形没有变化的单一颜色处不设置特征点。
  8. 根据权利要求1所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，所述数码喷印机还包括行走单元，行走单元配置为可沿垂直于导带进给方向的方向移动，所述数码喷头和图像采集单元均设置在行走单元上，图像采集单元随行走单元移动，并实时采集图像。
  9. 根据权利要求2所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，所述步骤c使镜像目标图案与图像采集单元采集到的反面图案对准过程中的偏差较大时，允许再通过人工观察，判断是否对准，如未对准，则通过人工干预的方式，手动调整镜像目标图案，使其特征点与图像采集单元采集到的所述反面图案上的对应特征点对准。
  10. 根据权利要求7所述的利用数码喷印机的纺织品的双面喷墨印花方法，其特征在于，在步骤a中，选取特征点时，每平方英寸上选取1个特征点，大面积的底色或空白处，不设置特征点，有对准要求的位置需要选取特征点。
  11. 一种纺织品，其具有正面印花和反面印花，正面印花和反面印花分别设置在纺织品的两侧，且正面印花和反面印花对准，其特征在于，所述纺织品 上的正面印花和反面印花采用权利要求1至10任一所述的利用数码喷印机的纺织品的双面喷墨印花方法所形成。
  12. 根据权利要求11所述纺织品，其特征在于，所述正面印花和反面印花上具有对应的特征点。
PCT/CN2018/118878 2017-12-01 2018-12-03 利用数码喷印机的纺织品的双面喷墨印花方法及纺织品 WO2019105482A1 (zh)

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