office paper

Thickness or Caliper: Paper thickness is measured in ten thousandths of inches or thousands of millimeters with an instrument called a caliper. In the paper industry, caliper and thickness are synonymous. Caliper matters because copy and printing equipment is set delicately to handle paper of a certain thickness. The machines may jam if the settings are not changed when necessary.

Basis Weight: Users specify copy paper by basis weight expressed in pounds (# or lb.) or in sub weights which mean the same thing. Standard copy paper weights are 16 lb., 20 lb. and 24 lb., with 20 lb. the most frequently used by governments. Usually, the heavier the weight, the thicker and more expensive the paper.

Weight and Thickness

Copy paper is sold in cut sizes rather than in rolls. At one time there were many specialty grades like mimeo, duplicator, xerographic and laser papers because the paper had to work with very different reproduction equipment. Today, as impact, laser and xerographic copying replaces older methods, buyers order a single type, or dual-purpose, paper. The standard sizes are:

Size

Brightness is being dropped from specifications because it is an aesthetic, not a functional, characteristic. Since all grades have the same functional performance characteristics, nearly all governments now select Grade 4. Some order "natural" or Grade N.

At one time, governments ordered Grade 1 bond for their copying needs. It was the most expensive grade except for paper with cotton fiber content. Grades are determined by brightness levels. Brightness measures how light is reflected from the paper. Brighter paper looks whiter whether it is or not. Fluorescent agents or other additives fool the eye. Minimum brightness levels are:

Grade

Copy paper is one of the first recycled products governments seek. It helps to understand the product characteristics and market conditions. The general attributes in this section apply to virgin and recycled alternatives.

ATTRIBUTES

COPY PAPER

Copy paper may be called reprographic paper, copier paper, dual-purpose or xerographic paper. Governments use it in large quantities and is the largest category in the uncoated commodity printing paper grade according to production data. As more forms are generated by computer software and laser printers, cut-size copy paper replaces continuous forms bond. Some companies with an eye to the future recently eliminated or reduced forms bond production.

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