Web
Web turns up in 2 fields: nonwovens, printing. Here is what it means to the people in each one.
Web in nonwovens
Thin layer of fibers or filaments made in the first stage of nonwoven production, before or after bonding.
The web is the forming step's output: a carded layer coming off the doffer, a filament layer on the spunbond belt or a fiber mat on an airlaid wire. Unbonded webs have almost no strength and ride on belts and conveyors until bonding. Line people also say web for the moving fabric anywhere along the line, as in web break or web guiding.
"Web is splitting at the doffer on the operator side, so check the card before the lapper sees it."
Web in printing
A continuous roll of paper fed through a high-speed printing press.
This refers to the unbroken, continuous ribbon of paper unwinding from a massive roll and traveling through the printing units of a web press. Unlike sheetfed printing where individual pieces of paper are picked up one by one, a web system prints on the moving ribbon at extremely high speeds before cutting and folding it at the delivery end. Maintaining the correct tension on this ribbon is critical to prevent tearing or misregistration.
"We had a web break on unit three, so it will take at least twenty minutes to rethread the press and get back up to speed."