Blue print paper and preparation method thereof

The invention provides blue print paper and a preparation method thereof. The blue print paper comprises the following ingredients: bleached chemical softwood pulp, bleached chemical hardwood pulp and mechanical wood pulp; the blue print paper consists of a surface layer and a bottom layer; the surf...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YU QING, WANG XIAOMING, ZHAO LEI, HUANG YE, SHI ZHONGSHOU, YE LYUYIN
Format:	Patent
Sprache:	eng
Schlagworte:	IMPREGNATING OR COATING OF PAPER METHODS OF PRODUCING PAPER THEREON PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES 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:	The invention provides blue print paper and a preparation method thereof. The blue print paper comprises the following ingredients: bleached chemical softwood pulp, bleached chemical hardwood pulp and mechanical wood pulp; the blue print paper consists of a surface layer and a bottom layer; the surface layer adopts the fiber proportion in part by weight: 30 percent of bleached chemical softwood pulp, 45 percent of bleached chemical hardwood pulp and 25 percent of mechanical wood pulp; the bottom layer adopts the fiber proportion in part by weight: 30 percent of bleached chemical softwood pulp, 25 percent of bleached chemical hardwood pulp and 45 percent of mechanical wood pulp; the blue print paper has the characteristics of convenience for use, clear pattern, durability and low cost.