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Pramod Agrawal - Saxion


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  • 1. Inkjet Printing for Textiles:an enabling tool for realisingdigital workflows & mass customisation.dr. Pramod Agrawal & Ir. Ger BrinksRESEARCH CENTER DESIGN & TECHNOLOGYKom verder. Saxion.
  • 2. Saxion as a knowledge institute switching from…  education only ……………transfer of know how to universities of applied science ……………knowledge development and knowledge circulation/disseminationKom verder. Saxion.
  • 3. Saxion facts and figures One of the biggest private institutes of higher education in the Netherlands 24.000 students (Enschede, Deventer & Apeldoorn) Education: 60 bachelor, 11 master, 7 associated degree studies 13 Academies Applied research: 6 knowledge centres and 40 chairsKom verder. Saxion.
  • 4. Six coherent chairs at KC-DT/Saxion-Enschede Media Ambient Fashion Materials Technology Intelligence Design Design Societal Concept- Product- theme development development Product Market € Industrial Smart Functional Production- Design Materials and Process innovationKom verder. Saxion.
  • 5. Research casting UTwente Saxion Industry Market Academic Innovative Development € research research > 4 yrs < 2 yrs 1 yr  Chair Engineering of Fibrous Smart Materials (EFSM) at University of Twente  Chair Functional Smart Materials at Saxion, KCDT, Enschede  New knowledge available for the IndustryKom verder. Saxion.
  • 6. Chair – Functional smart materialsKey research area Functionalisation of textile materials Inkjet printing / Digital processes Conductive yarns/ 3D prototyping Sustainability: from materials to processes functions Recycling Application of enzyme technology material surface engineering characteristicsKom verder. Saxion.
  • 7. What are smart-technical textiles? Textiles Materials Electronics Conventional Textiles Technical Textiles Smart/Intelligent TextilesKom verder. Saxion.
  • 8. Key European projects (FP7) – Smart functional textiles / Digital workflows • Leapfrog ( • Digitex ( • BIOTEX ( • CONTEX ( • ProeTEX ( • STELLA ( • OFSETH ( • myHeart ( • Avalon ( • Clevertex ( • Lidwine ( verder. Saxion.
  • 9. Digital workflow Key components • Information/ knowledge flow • Materials flow The nature of Digital workflows • Adoptive system: it adapts to changing conditions by target- oriented responses so that particular function can be performed. • Anolog-digital control / Hybrid control: when a master controller operates on an underlying analog cycle sequence to achieve a high degree of long-term constancy.Kom verder. Saxion.
  • 10. Why Digital workflow? • European textile sector: need for bulk production to mass customisation. • Market positioning of high performance & functional clothing. • Fundamental redesign of the entire garment industry chain. • Minimising accidents during the production. • Improved precision, reducing mistakes. • Value addition. • Sustainability. • Recyclability. Key DriversKom verder. Saxion.
  • 11. Technology drivers for Digital workflows Technology • Nano ProductsScience • Bio• Physics • Polymer Production• Chemistry • electronics Market• Technical • ICT Systems €• ……many others • Production • ..many others “Enablers” Social trends and themesKom verder. Saxion.
  • 12. Digital printing Decrease in rotary screen printing (will go slow because of install base) 50 (% of printed textile volume) In use 25 10 0 1980       1990      2000       2010      2020       2030     2040Kom verder. Saxion.
  • 13. Mass customisation / Digital workflow - Inkjet printing as a process enabling technologyKom verder. Saxion.
  • 14. Inkjet developmentKom verder. Saxion.
  • 15. Application trends Graphical Printing Functional Printing Marking/coding Martin et al. J. Phys.: Conference Series (2008) vol. 105 pp. 012001Kom verder. Saxion.
  • 16. Market demands: Graphical textiles printing • Productivity: 20 – 30 m2/hours • High resolution: e.g. fine tie patterns • Support for various fabric types • Colour reproduction: better than screen printing • Strike-through: colour permeability to rear surface • High colour fastness: equal fastness to screen printing • Low running cost.Kom verder. Saxion.
  • 17. Graphical Printing – Industrial printers • DuPont Artistri TM 2020 textile printing Systems • DReAM – Reggiani Macchine, ItalyKom verder. Saxion.
  • 18. DReAM – Reggiani Macchine, Italy• Roll-to-roll configuration• Fabric width: 1.6 – 2.2 m• Speed: up to 190 m2/hr with 600 dpi resolution• Allows instant change of design pattern• DOD technology / piezoelectric Scitex heads• It utilises 7 printing heads for six colours (42 printing heads on one bridge)• Substrate: Virtually any flat surface (textiles, leather)• All ink chemistry possible (direct, reactive, pigment, disperse etc.)Kom verder. Saxion.
  • 19. Functional digital printing – an overviewKom verder. Saxion.
  • 20. Our choice: DoD / Piezo Inkjet – PIJDoD technology: Deformation of a piezo crystal which leads to a volume alternation in the ink chamber and finally to a drop ejection. No squeezing!Fabricators: Epson, Xaar, Spectra, Brother, Mimaki, TektronikKom verder. Saxion.
  • 21. Applications: Functional printing functional printing • printed electronics • chemistry / medicine • process engineering • rapid prototyping printing of an solar cell RFID antenna, TU Chemnitz process requirements • reliable • variable print pattern • high resolution and accuracy • flexible ink and substrate Silver tracks on polyimide, Harima PIJKom verder. Saxion.
  • 22. Applications: Functional Digital finishes• Cyclodextrins• Nano Ag (antimicrobial)• Nano TiO2 (self cleaning).• Sol-gel (SiO2)• Bionics (shark skin effect, Lotus effect)• Moisture managementKom verder. Saxion.
  • 23. Digital finishing processFunctional digitaal finishing proces (Realising reliable digital processing in the textiles industries) Kom verder. Saxion.
  • 24. Grasping opportunities of global trendKom verder. Saxion.
  • 25. Saxion – the offer• Basic theory course on Digital printing/finishing & Digital Workflow.• Six month minor program: new product development in the area of functional smart materials.• International Masters: The students works on actual R&D projects sponsored by the industry or having a pure academic interest.• Participation in RAAK and EU projects,• Commercial R&D facilities: Project from textile and related industries in terms of innovation vouchers or project grant.Kom verder. Saxion.
  • 26. Saxion other facilities User Test lab Materials studio Materials development lab: FabLab Ambient embedded systems labKom verder. Saxion.
  • 27. Dutch network Nonwovens/3Dstructures Technical textiles Materials, textiles Textile printing Textile chemicals Laundry Textiel branche organisation products business Knowledge InsitituteKom verder. Saxion.
  • 28. Statement & Solution… “…For its survival the textile industry has to be transformed from a labour intensive business towards a knowledge intensive business…” “…Digital printing of functional materials by specially designed inkjet-printers is driven by the emerging need for mass customization feasible through digital workflows...” Thanks for your attention!!!Kom verder. Saxion.