Paper making machine providing curl control

Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles

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34445, 34446, F26B 1102

Patent

active

058844155

ABSTRACT:
The invention is a paper making machine and a method of making paper. The machine includes a section for forming a wet paper web having first and second sides and a dryer for drying the wet paper web. At least a first portion of the dryer is capable of preferentially drying the first side of the wet paper web to a dryness level of at least about 70% solids. In a variation of the paper making machine, the first portion of the dryer is capable of preferentially drying the first side of the wet paper web to a dryness level of at least about M, as represented by the formula:

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