bristol board
A lightweight board that can be made on either a
Fourdrinier or cylinder papermaking machine. There
are three types of bristols: 1) index, 2) mill,
and 3) wedding. They range in thickness from 0.006
inch and greater. The original bristol board, made
in Bristol. England, was a pasted board made of
rag content paper, but very little bristol today
is of this character. Bristols are sometimes
filled, but are more commonly pasted or plied, the
thicker sheets being made by pasting sheets of the
same stock together until the desired thickness is
attained. They are designated as 2-ply, 3-ply,
etc., according to the number of sheets used. The
highest grade of bristol is wedding, followed by
index and mill. (17
, 234 , 320 )
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