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Cp.15 Flexographic, Ink-jet, and Digital Presses

Cp.15 Flexographic, Ink-jet, and Digital Presses. Prof. Dr. Cao Congjun Xi ’ an university of technology. Objects. Major components of a flexographic press Function of an anilox roll Flexographic inking systems Flexographic plates making

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Cp.15 Flexographic, Ink-jet, and Digital Presses

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  1. Cp.15 Flexographic, Ink-jet, and Digital Presses Prof. Dr. Cao Congjun Xi’an university of technology

  2. Objects • Major components of a flexographic press • Function of an anilox roll • Flexographic inking systems • Flexographic plates making • The operating principles of a continuous imaging press and a drop-demand ink-jet printer

  3. Explain the terms direct imaging press and digital toner-based printing and operating principles of the both printing systems. • Explain the operating principles of a digital press. • Outline the advantages digital printing has over every traditional printing method.

  4. Application:标签/商标

  5. 塑料软包装

  6. Cardboard卡纸

  7. 胶印/凹印/柔印

  8. 15.1Flexographic Printing • Concept-P354 • Components of a flexographic press ※Infeed unit ※Printing unit: Three-roller inking system and two-roller inking system ※Outfeed unit

  9. 放卷机组 印刷机组 驱动机组 印后加工机组 收卷机组 机组式柔性版印刷生产线

  10. 15.1.1 Flexographic Plates • Rubber plates • Photopolymer plates ※Sheet photopolymer plates ※ Liquid photopolymer plates

  11. Steps

  12. 柔性版印刷机 层叠式柔性版 印刷机 卫星式柔性版 印刷机 机组式柔性版 印刷机 15.1.2 Flexographic Press • The stack press • Central impression press • In-line press

  13. 15.2 Ink-jet printing-P366 • Continuous Ink-jet Technology • Drop-on-Demand Systems • Ink-jet Applications

  14. Functioning principles for ink jet technologies Fig. aContinuous ink jet bDrop on demand ink jet/thermal ink jet;

  15. cDrop on demand ink jet/piezo ink jet; dElectrostatic ink jet

  16. Digital Printing-P370 • Direct imaging presses ※Advantages ※Plate Exposure • Digital toner based printing ※Press Configuration • Implications of Direct Digital Presses

  17. DI press-Plate Exposure Fig. Quickmaster DI computer to press/direct imaging system for multicolor printing in waterless offset (QM DI 46-4, Heidelberg)

  18. Digital Toner Based Printing Fig.Computer to print system for multicolor printing (electrophotography, ROS laser imaging, liquid toner, intermediate cylinder) with the option of sheet turning for double-sided (duplex) printing (E-Print 1000/TurboStream, Indigo)

  19. Fig. Electrophotographic multicolor printing system with liquid toner (TurboStream (33 A4 pages/min), Indigo; diagram derived from company information, not confirmed)

  20. Homework • P376 • Review questions 1,2,6,7,8,9,12

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