GCM 110 Lecture Notes - Lecture 6: Roman Numerals, Metric System, Micrometer
29 Dec 2016
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Gcm 110 paper and ink & materials testing (part 2) Weight: lbs, gsm, look, feel, and cost of the product. Color: white vs natural vs dyes. Grain direction: fibers are aligned in a specific direction, when water is added, it expands across the grain (ex. Rice: affects the end product --> covers on books can curl --> folding and scoring against the grain can cause cracking, long grain. Fibers are aligned with the long edge of the sheet (vertically: short grain. Fibers are aligned with the short edge of the sheet (horizontally: grain direction is relative --> can change if a sheet is cut. Caliper: thickness of an individual sheet, micrometer. Measured to the one thousandth of an inch: can affect spine thickness with a book, weight of the book. Basis weight: the weight in pounds of ream (500 sheets) of paper in its basic size. Basic sizes (memorize the two inches, not the total):
