Source - Paper Leaf
Paper grade defines paper in terms of its use. Each grade
serves a purpose, usually suggested by its grade name. Below are some of
the most common classifications of printing papers.
- Bond papers
are commonly used for letters and business forms. They have surfaces
which accept ink readily from a pen or typewriter and can be easily
erased.
- Coated papers are used when high printing quality is desired
because of its greater surface smoothness and uniform ink receptivity.
There are many kinds: cast coated, gloss coated, dull coated, machine
coated, coated one- and two-sides, etc.
- Text papers are noted for their interesting textures and
attractive colors. They enjoy frequent use for announcements, booklets
and brochures.
- Offset papers are considered the most economical printing
papers. Offset papers may be used for directories, newsletters, books,
direct mail pieces with only a few photographs, and other printing
products requiring average quality.
- Cover papers complement coated and text papers in heavier
weights and matching colors for use as covers on booklets, etc. Papers
are also made for cover purposes only. Many special surface textures are
available. Special characteristics of cover pages include dimensional
stability, durability, uniform printing surface, good scoring, folding,
embossing and die-cutting qualities. It is a useful rule of thumb that
cover stock of the same basis weight as text paper has about twice the
thickness.
- Index papers have two outstanding characteristics—stiffness and
receptivity to writing ink. Index is commonly used whenever an
inexpensive stiff paper is required.
- Tag is a heavy utility sheet. Tag board is sometimes tinted and
colored on one or both sides. Tag stock has good bending or folding
qualities, and a surface adaptable to printing, stamping, or writing.
- Bristol is one of the board grades, with a softer surface than index or tag, making it ideal for high-speed folding, embossing, or stamping. It is very receptive to ink and has good snap and resilience.
