Manufacture
See also: Liquid packaging boardThe base paper for paper cups are called "cup board" and are made on special multi ply paper machines and have a barrier coating for waterproofing. The paper needs high stiffness and strong wet sizing. The cup board grades have a special design for the cup manufacturing processes. The mouth roll forming process requires good elongation properties of the board and the plastic coating. A well formed mouth roll provides good stiffness and handling properties in the cup. The basis weights of the cup boards are 170-350 g/m2.
To meet hygiene requirements, paper cups are generally manufactured from virgin (non-recycled) materials. The one exception to this rule is when the paper cup features an extra insulating layer for heat retention, which never comes into contact with the beverage, such as a corrugated layer wrapped round a single-wall cup.
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Famous quotes containing the word manufacture:
“Culture is an instrument wielded by teachers to manufacture teachers, who, in their turn, will manufacture still more teachers.”
—Simone Weil (1909–1943)
“Yes, that’s what I needed. Living flesh from humans for my experiments. What difference did it make if a few people had to die? Their flesh taught me how to manufacture arms, legs, faces that are human. I’ll make a crippled world whole again.”
—Robert Tusker, and Michael Curtiz. Wells (Preston Foster)
“I believe that the miseries consequent on the manufacture and sale of intoxicating liquors are so great as imperiously to command the attention of all dedicated lives; and that while the abolition of American slavery was numerically first, the abolition of the liquor traffic is not morally second.”
—Elizabeth Stuart Phelps (1844–1911)