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Publication of CH234364ApublicationCriticalpatent/CH234364A/de
D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
D21H25/02—Chemical or biochemical treatment
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
D21J1/00—Fibreboard
D21J1/08—Impregnated or coated fibreboard
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CH234364D1941-09-061942-08-14Verfahren zur Herstellung hoch voluminöser Fasergebilde, insbesondere Papier oder Faservliesse.
CH234364A
(de)