Printing - Comparison of Printing Methods

Comparison of printing methods
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
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, methods, comparison and/or printing:

    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)

    Generalization, especially risky generalization, is one of the chief methods by which knowledge proceeds... Safe generalizations are usually rather boring. Delete that “usually rather.” Safe generalizations are quite boring.
    Joseph Epstein (b. 1937)

    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)

    It seems not more reasonable to leave the right of printing unrestrained, because writers may be afterwards censured, than it would be to sleep with doors unbolted, because by our laws we can hang a thief.
    Samuel Johnson (1709–1784)