Pulp modifying material and its producing method

The paper pulp modifying material contains superfine mineral fiber and superfine mineral powder and has the chemical composition of: SiO2 40.15-52.23 wt%, CaO 38.27-48.48 wt%, Al2O3 1.69-2.48 wt%, SO3 1.88-2.51 wt% and C1 0.07-0.345 w. It has the physical bleaching function, and when the paper pulp...

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Bibliographische Detailangaben
Hauptverfasser:	YIYONG LI, CHUANMIN SUN, CANGLONG LIU
Format:	Patent
Sprache:	eng
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:	The paper pulp modifying material contains superfine mineral fiber and superfine mineral powder and has the chemical composition of: SiO2 40.15-52.23 wt%, CaO 38.27-48.48 wt%, Al2O3 1.69-2.48 wt%, SO3 1.88-2.51 wt% and C1 0.07-0.345 w. It has the physical bleaching function, and when the paper pulp modifying material in 5-20 % is added into paper pulp, high whiteness news paper meeting the environment protection requirement may be produced.