When asked about the details
of the paper stock you are choosing for a print project, do your eyes glaze
over? Do terms like basis weight, points, and color cast sound like Greek to
you? If so, here is a quick list of basic terms to help you better understand
the process.
Basis weight is the weight in pounds of a
ream (500 sheets) of a paper at its basic
size, or the size of the uncut sheet supplied to the printer. For example,
the basic size of book paper is 25 x 38 inches, so a ream weighing 70 pounds
would be 70-lb. paper. Sometimes metric is used: 70-lb. book paper is
equivalent to 104 g/m2.
Cover,
card, and other thick stocks are often specified in points, which refers to the thickness of the paper. This is often abbreviated “pt.”— for example,
“8-pt. cover.” One point is 1/1000th of an inch, so an 8-pt. stock is 0.008
inches thick.
Paper grade refers to the end use of
the paper. Bond is used for letters
and documents, book paper is used for
books, offset is used for offset
printing, and so on. Digital presses generally have their own grades. Thicker
grades include cover, bristol, tag,
and index.
C1S and C2S refer to coatings. Paper is often coated during manufacture,
which improves the reproduction of fine halftone screens and color fidelity. C1S means
“coated one-side,” which is useful for labels, packaging, and other materials destined
for single-sided printing. C2S means “coated two-sides” and is
preferred for two-sided commercial printing.
Brightness refers to the percentage of
light reflected from the sheet’s surface. Basic white copy paper has a 92
brightness. Brightness by component wavelength (red, green, or blue) is also
determined, as paper can reflect different amounts of certain colors, imparting
a color cast to a printed piece if you’re not careful.
Paper
can bring life, texture, and beauty to your projects. Want to learn more about
how different choices complement different projects? Let’s talk!
Please give us a call at 440-946-0606
Or visit our website here for more information.
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Please give us a call at 440-946-0606
Or visit our website here for more information.
Share on LinkedIn