The basis weights of the cup boards are 170 350 g / m 2.
3.
The design basis weight was 34 # and at design speed, the machine would produce 480 tons per day.
4.
The corrugated medium is often basis weight in the U . S .; in the UK, a fluting paper is common.
5.
It is typically 25 39 g / m?( 9-pound basis weight in US units ), and may be white or canary-colored.
6.
However, a sheet of common copy paper that has a basis weight of does not have the same mass as the same size sheet of coarse paper ( newsprint ).
7.
The basis weight valve meters the stock to the recirculating stream of water that is pumped, by the " fan pump ", from a whitewater chest through to the flow box.
8.
"Lightweight offset paper ", also called onionskin, has a basis weight of 25 40 g / m 2 and are normally used for bibles ( hence the name Bible paper ) and dictionaries.
9.
In the past twenty years, basis weight of these papers has been reduced from a 43-pound sheet that was used in " Family Circle " magazine to, in some instances, as low as 26 pound.
10.
From the machine chest stock is pumped to a head tank, commonly called a " head box ", whose purpose is to maintain a constant head ( pressure ) on the stock as it feeds the basis weight valve.
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