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HP Scitex Inks Introduction

HP Scitex Inks Introduction. Benny Dayan. Ink R&D at HP Scitex. Main product: Digital printing wide-format Printers Ink- taking its place at the frontlines. Scitex Vision Ink vs. systems. XLJet. Bilpop. Turbojet-UV. Turbojet-P. Turbojet. VEEJet. VEEJet-P. Displayjet. CORJet.

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HP Scitex Inks Introduction

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  1. HP Scitex Inks Introduction Benny Dayan

  2. Ink R&D at HP Scitex • Main product: Digital printing wide-format Printers • Ink- taking its place at the frontlines

  3. Scitex Vision Ink vs. systems

  4. XLJet Bilpop Turbojet-UV Turbojet-P Turbojet VEEJet VEEJet-P Displayjet CORJet NPI – New Product Introductions SWF Drum FB UV Packaging 2006 2007 2008

  5. Scitex Vision Inks Activities • Own R&D teams in Israel and in South Africa -altogether ~15 people • Solvent and UV curable ink manufacturing facility in Cape Town, South Africa. • Water-based ink manufacturing facility in Israel

  6. Highly reliable - humectants Solution 2-3 cPs Water based Dye based No water fastness Fading Poor abrasion Poor adhesion Printing media – paper Highly reliable - humectants Solution/dispersion 8 - 25 cPs Water/Solvents based Pigment based Light fastness High abrasion resistance Resin Water fastness (polymeric resin) Good adhesion Printing media – any substrate Good wetting = surfactants Applicative IJ Ink Office environment Industrial environment

  7. Types of Ink

  8. Color Fading Tests Color Fading

  9. Ink Composition (formulation)

  10. Origin of pigments Before the Industrial Revolution, the range of color available for art and decorative uses was technically limited. Most of the pigments in use were earth and mineral pigments, or pigments of biological origin. Many pigments were known by the location where they were produced. Pigments based on minerals and clays often bore the name of the city or region where they were mined. Raw Sienna and Burnt Sienna came from Sienna, Italy, while Raw Umber and Burnt Umber came from Umbria. Pigments from unusual sources such as botanical materials, animal waste, insects, and mollusks were harvested and traded over long distances. Some colors were costly or impossible to mix with the range of pigments that were available. Blue and purple came to be associated with royalty because of their expense.

  11. Lapis lazuli Mineral pigments were also traded over long distances. The only way to achieve a deep rich blue was by using a semi-precious stone – Lapis lazuli

  12. The Process Stabilizer Pigment concentrate in Matrix Pigment in Matrix Magenta Ink Mill Particle size Viscosity parameters Optical Density Stability Filterability

  13. Crude premix using dispermat (pigment, diluent, dispersant and possibly resin) Mill base using bead mills Assembly of ink Ink manufacturing

  14. Together with associate-contractor a strategic decision to invest in milling capabilities: Ciba, Clariant, etc- The dependency on a limited number ofpre-dispersed pigment suppliers was problematic. Having to dealwith these companies prevented price-quality-creativity competition. Often change in their processes was without informing. Source from a wider supply base Controls the complete process from start to finish ensuring product quality, consistency and production efficiency. Superior particle size, Substantially reduced unit cost, Wider pigment choice, Full control over formulation, Simplified down stream processing & Competitive advantage Ink manufacturing:Acquiring self-capability to mill base

  15. Ink Manufacturing:The Process Milling Millbase Mixing Viscosity Adjustment • Solvent • Resin • Pigment • Additives • Solvent • Resin • Pigment • Additives Filtration QA Samples • Phase1 • Phase2 • Phase3 Bottling Labeling Packaging

  16. Substrate Substrate Substrate Substrate Liquid ink Liquid ink Solid ink Solid ink Unique Features of UV-based Ink:Drying, P.I.S-lamp, Film Thickness, Environmental Solvent or water-based ink Solvent/water Dryer UV-curable ink UV light source

  17. System Structure

  18. Weather resistant pigments are usually lightfast but the reverse is not always the case. The selection of pigments for outdoor use depends on : Outdoor performance required (life time, climatic region/ Kilo Langley) Binder type Concentration of the pigment Presence of titanium dioxide (which typically accelerates fading) Concentration and type of light stabilizers used. Performance can also be influenced by the surface of the painted object and by the processing heat history. Pigments Characterization Weather Stability

  19. Pigments Characterization Weather Stability (cont.) Accelerated testing; • In addition to a xenon lamp, include wet cycles • Interspersed between longer dry cycles. • Weatherability is designated in Terms of the 1-5 Grey Scale. • 5 represents no change and 1 a severe change.

  20. Fields of knowledge 4. QAQC • Establishing “ink approval procedures” • Establishing methods – e.g, how to evaluate size? • Accelerated test for stability prediction • Equipment- ST, Rheometry viscometer, filtrations • Draw down characterization – OD, gloss, curing..

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