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Wrapper comprising a cellulosic base web containing 10% to 50 wt.% inorganic filler, contains an alkali metal salt equivalent to at least about 23 milligrams of alkali metal per gram of base web. Pref. the salt is a sodium and potassium salt of carbonic acid, formic acid, acetic acid, propionic acid...

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Bibliographische Detailangaben
Hauptverfasser:	MATHEWS JOHN H, DELUCIA MARY L, MATTINA CHARLES F
Format:	Patent
Sprache:	eng ; ita
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	Wrapper comprising a cellulosic base web containing 10% to 50 wt.% inorganic filler, contains an alkali metal salt equivalent to at least about 23 milligrams of alkali metal per gram of base web. Pref. the salt is a sodium and potassium salt of carbonic acid, formic acid, acetic acid, propionic acid, mali acid, lactic acid, glycolic acid, actric acid, tartaric acid, fumaric acid, oxalic acid, malonic acid, nitric acid, and phosphoric acid, more pref. sodium citrate or potassium citrate being used. The base pref. comprises flax fibres and pref. the inorganic filler is calcium carbonate.