METHOD OF MAKING A WEB OF THREE OR MORE PLIES

摘要

1492324 Papermaking BELOIT CORP 14 Jan 1975 [17 Jan 1974] 20727/76 Divided out of 1492323 Addition to 1411773 Heading D2A The description is substantially identical to part of the description of Parent Specification but the claims are directed to a method of making a web having a middle layer 67 of high ash content (30%-80%) sandwiched by outer layers 65, 66 of long wood fibres, the three layers being formed from three stock flows fed separately to the headbox slice opening.