Entrenamiento en sustratos de impresion Ink jet Digital Ink jet media Training http://www.Sihl.com http://www.SihlUSA.com http://www.PrintLAT.com

1. Digital Imaging
Inkjet Training
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2. Inkjet Imaging
How does a printer
head work?
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3. Inkjet Imaging
The head methods
Continuous Flow method Drop on demand method
Thermal / Bubble Jet Piezo Jet
Front-shoot Side-shooter Squeeze Shear Bender Push
Tube mode mode
HP Canon
Olivetti Xerox
Lexmark
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4. Inkjet Imaging
Thermal Inkjet - Bubble Jet - technology
HP Design Jet 5500 / Z6100 Canon W 6400 / 8400
iPF6100 / 9000
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5. Inkjet Imaging
Drop on demand method - Bubble Jet
Jet compartment heating element
Non-operative condition
Bubble production
Drop ejection
Ejected droplet
Collapsing bubble
Capillary topping-up
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6. Inkjet Imaging - HP printhead
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7. Inkjet Imaging
Piezo Jet - technology EPSON
4000/7600/9600
3800/4800/7800/9800
Mutoh RJ 6100
4880/7880/9880/11880
Roland FJ 540
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8. Inkjet Imaging Piezo crystal
Piezo crystal - technology
Jet compartment
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9. Inkjet Imaging - Epson Piezo Head
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10. Inkjet Imaging
What about resolution?
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11. Inkjet Imaging
Printer resolution
• The measurement unit for resolution is dpi
– dpi = dots per inch
– dpi = points per 25.4 mm
– 300 dpi = 11.8 points per mm
– 2400 dpi ≅ 95 points per mm
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12. Inkjet Imaging
Printer resolution
length of the edges = distance diameter = distance
in combination with a quadrate in combination with circle
D
A
The fact that white area rests between the circles needs an enlargement of
the printed point
It follows theoretically D = 1,4 x A
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13. Inkjet Imaging
Printer resolution
Printer resolution, like 2400 x 1200dpi
Defines only the number of dots per square inch
Doesn´t define the diameter of the printed point
The following slide will show this fact.
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14. Inkjet Imaging
What about ink?
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15. Inkjet Imaging
There are two basic types of Ink . . .
• Dye based Ink • Pigmented Ink
+ like sugar or salt in water + like clay in water
+ colorant (dye) is dissolved + many molecules of colorant in
at the molecular level each pigment particle
+ high saturation + high UV and oxidation stability,
– low UV and Ozone stability as molecular bonds not as easily
dye molecular bonds are broken
broken by these effects – danger of settling down
– today slightly lower colour
saturation than dye ink
=> Indoor (several month up to
years) => Outdoor (>3year) and Indoor
(>25 year)
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16. 6 month ozone influence at standard office condition during summer
Canon S900 photo printer with dye ink
Protected with a clear PET film Without protection
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17. Inkjet Imaging
Inkjet Ink Overview
Aqueous Ink Non Aqueous Ink
Dye Ink Phase Change Oilbased Ink Solvent Ink Reactive ink
Wax / Resin UV curing
Pigmented Pigmented
Pigmented Ink
Low Solvent
Pigmented
Latex ink
Eco Solvent
Pigmented
Pigmented
Hard Solvent
Pigmented
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18. Differences of inks
100%
90% Dye
80%
Monomer
70%
60% Polymer
50%
Water mixible solid
40%
solvent
30% Slow evaporating
20%
solvent
Hygroscopic Solvent
10%
0% Fast evaporating
Aqueous
UV-curing
Low-, Eco-
Aqueous Piezo
Latex
Oilbased
solvent
Solvent
thermal
Solvent
Fast evaporating
water
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19. Inkjet Imaging
What about the Inkjet media ?
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20. Inkjet Imaging Aqueous Base
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21. Inkjet Imaging Aqueous Base
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22. Inkjet Imaging Solvent Base
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23. Inkjet Imaging Solvent Base
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24. Factors for Ink Jet Print Quality
• Printing head • Media Substrate
• technology, resolution • type, surface, optical
• Printing mode • Coating
• colour
• printer, ink lay down
• gloss
• Calibration (RIP) and Colour profiling
• ink capacity
• Inks
• ink absorption speed
• density, viscosity, surface tension
• dot gain
• stability • adhesion
• Conditions • resistance against scratching
• temperature, humidity, air flow
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25. Ink Jet Media Characterization
• Test Print
• Colour Measurement
• Dot Size Measurement
• Electron Microscopy
• Dynamic Ink Absorption
• Lamination compatibility
• Accelerated UV Exposure
• Physical Properties
• Printer related Reliability => Feeding, cutting, etc.
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26. Ink Jet Media Characterization
Test Print
• Colour Gamut
• Gradation
• Inter Colour Bleeding
• Line Sharpness
• Small Characters
• Coalescence
• Banding
• Drying time
• Water Resistance
• UV Resistance
• Lamination compatibility
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27. Lamination Compatibility
hot - cold lamination
printed and unprinted areas
1. adhesion
coating to base material
lamination film to coating
2. Cohesion
paper base, coating
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28. DAVID PACHON – PRINTLAT
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29. Inkjet Specialities - Banner
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30. Inkjet Specialities - POS Media
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31. Inkjet Specialities - Selfadhesive products
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32. Inkjet Artistic Specialities
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33. Inkjet Films - Backlit Film / Window Graphic
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34. Inkjet Films
Pasos para Imprimir en Serigrafía - Screen
1.Prepare su diseño, Separe su diseño 2.Adjuntar el Positivo a un bastidor con 3.Exponga el bastidor a luz ultra
por color, e imprima cada color en un emulsión. Se debe preparar un violeta para transferir el diseño del
positivo independiente. Cada Color bastidor por cada positivo al bastidor llamado “screen”
representa un color por separado y
necesita su bastidor independiente
4.Lave las áreas no expuestas con 6.Agregue tinta al bastidor, cada color
agua es aplicado de forma independiente
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35. Inkjet Papers – Proofing - Photo
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36. Inkjet Imaging Papers - Product Range TriSolv.
After print processing, billboard application
After wetting the folded poster in water (up to 15 minutes)
the spare water will be wiped off. This wet folded paper keeps
in a plastic bag for one day up to three days.
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37. Inkjet Imaging Papers - Product Range TriSolv.
After print processing, billboard application
8 hours
up to
three
days
Apply glue to the billboard, paste the wet TriSolv paper onto the billboard and then
wipe again with the glue over the paper.
Nearly 85% of all billboard posters are mounted by this procedure (international
standard). The glue is standardized in most countries.
The TriSolv Paper family is qualified by billboard companies for this kind of
application.
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38. Thank you for your attention!
David.pachon@sihlusa.com
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