GCM 110 Lecture Notes - Lecture 7: Newsprint, Lignin, Cellulose

• School: Ryerson University
• Department: Graphic Communications
• Course: GCM 110
• Professor: Diana Brown

Document Summary

Influences the message you are trying to communicate. Will affect the cost of the job significantly. Will determine how long the product lasts. Brightness (% of light reflected at 457 nm) Lignen - the fibres that darken the colours of the paper over time (for example, it is what makes newsprint turn yellow over time) Caliper - the thickness of an individual sheet of paper. Measured to the one thousandth of an inch. The weight (in pounds) of a ream (500 sheets) of paper in its basic size. For example, 50lb bond - 500 sheets of bond paper at 17x22 . The weight (in pounds) of 1,000 sheets of paper in a given size, specified in inches: m weights are stated as, 35x45-168m. Basis weight x area of m weight sheet x 2. If a label on a package of bond paper reads 34x45-168m . Basis weight = 168 x (17 x 22) (35 x 45) x 2.