| printing process | transfer method | pressure applied | drop size | dynamic viscosity | thickness of ink on substrate | notes | cost-effective run length |
|---|---|---|---|---|---|---|---|
| Offset printing | rollers | 1 MPa | 40–100 Pa·s | 0.5–1.5 µm | high print quality | >5,000 (A3 trim size, sheet-fed)
>30,000 (A3 trim size, web-fed) |
|
| Rotogravure | rollers | 3 MPa | 0.05–0.2 Pa·s | 0.8–8 µm | thick ink layers possible, excellent image reproduction, edges of letters and lines are jagged |
>500,000 | |
| Flexography | rollers | 0.3 MPa | 0.05–0.5 Pa·s | 0.8–2.5 µm | high quality (now HD) | ||
| Letterpress printing | platen | 10 MPa | 50–150 Pa·s | 0.5–1.5 µm | slow drying | ||
| Screen-printing | pressing ink through holes in screen | <12 µm | versatile method, low quality |
||||
| Electrophotography | electrostatics | 5–10 µm | thick ink | ||||
| Inkjet printer | thermal | 5–30 pl | 1–5 Pa·s | <0.5 µm | special paper required to reduce bleeding | <350 (A3 trim size) | |
| Inkjet printer | piezoelectric | 4–30 pl | 5–20 Pa·s | <0.5 µm | special paper required to reduce bleeding | <350 (A3 trim size) | |
| Inkjet printer | continuous | 5–100 pl | 1–5 Pa·s | <0.5 µm | special paper required to reduce bleeding | <350 (A3 trim size) |
Read more about this topic: Printing
Famous quotes containing the words comparison of, comparison, printing and/or methods:
“We teach boys to be such men as we are. We do not teach them to aspire to be all they can. We do not give them a training as if we believed in their noble nature. We scarce educate their bodies. We do not train the eye and the hand. We exercise their understandings to the apprehension and comparison of some facts, to a skill in numbers, in words; we aim to make accountants, attorneys, engineers; but not to make able, earnest, great- hearted men.”
—Ralph Waldo Emerson (1803–1882)
“But the best read naturalist who lends an entire and devout attention to truth, will see that there remains much to learn of his relation to the world, and that it is not to be learned by any addition or subtraction or other comparison of known quantities, but is arrived at by untaught sallies of the spirit, by a continual self-recovery, and by entire humility.”
—Ralph Waldo Emerson (1803–1882)
“Before printing was discovered, a century was equal to a thousand years.”
—Henry David Thoreau (1817–1862)
“We are lonesome animals. We spend all our life trying to be less lonesome. One of our ancient methods is to tell a story begging the listener to say—and to feel—”Yes, that’s the way it is, or at least that’s the way I feel it. You’re not as alone as you thought.””
—John Steinbeck (1902–1968)