.~ Running or indefinite length work forming and/or treating processes (e.g., web) {6}
203
.~.~ Forming single web between opposed forming surfaces
DEFINITION
Classification: 162/203
(under subclass 202) Processes in which a unitary fibrous web is produced by continuously introducing slurry between
separate face-to-face foraminous molds whereby formation and interfelting of the fibers occurs at both faces of the web.
(1) Note. Merely treating a web while still on the mold surface by pressure means or even by means of a suction couch roll to further dewater the formed web is not here classified, being rather in subclass 208. To be here classified the slurry must be in such condition, when contacted by both mold surfaces, that the fibers are still in suspension and felting occurs on both mold faces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
208+, and see (1) Note above.
300+, for paper making apparatus having plural molds.
