APPARATUS FOR MAKING CORRUGATED PAPER BOARD

摘要

Apparatus for making corrugated paper board of the type having at least two facing sheets. The contacting component webs of supply material are fed along heating plates to adhesively secure them together. To prevent board warpage because of the outer (bottom) facing sheet's being drier than the inner (top) sheet, moisture is added to the outer sheet after the board leaves the heating plates, to equalize the moisture content of the two sheets.