PULP FOR MANUFACTURING PACKAGING MATERIAL

FIELD: paper-and-pulp industry. ^ SUBSTANCE: pulp for manufacturing mainly box-destination cardboard contains sulfite cellulose, wood-pulp, and secondary fiber. Sulfite cellulose is, more particularly, bisulfite cellulose bleached to 84-86% and having rigidity 30-35 Kappa units, tear resistance 430-...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	BONDAREVA T.A, KIRSANOV V.A, EVLAKHOVA R.A, LOGINOVA T.V, TJURIN E.T, OGURTSOVA N.A, GOROSHNIKOV V.V, URAEVA O.S, FOTEEV M.A, FADEEV B.A, SHIRANKOV G.F, LISITSYN N.I, VOLKOVA G.P, MUTOVINA M.G, VAN'CHIKOV N.K, ZUJKOV A.A, BONDAREV A.I, GUL'JANTS E.P, OSMININ E.N, MAKSHAKOVA I.B, VOLKOV V.A
Format:	Patent
Sprache:	eng ; rus
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	FIELD: paper-and-pulp industry. ^ SUBSTANCE: pulp for manufacturing mainly box-destination cardboard contains sulfite cellulose, wood-pulp, and secondary fiber. Sulfite cellulose is, more particularly, bisulfite cellulose bleached to 84-86% and having rigidity 30-35 Kappa units, tear resistance 430-460 mN, and punching resistance 430-460 mN. Such bisulfite cellulose is obtained by pulping mixture of softwood and foliferous wood at pH of cooking liquor 1.6-2.3, SO2 concentration 6.0-6.5%, and temperature 145-152°C. Wood-pulp is the one subjected to chemical, thermal, and mechanical treatment and characterized by whiteness 72-75%. Secondary fiber is ground paper waste with specified degree of grinding, optionally in the form of blend of differently ground marks. ^ EFFECT: improved strength characteristics and reduced manufacturing expenses. ^ 4 cl, 1 tbl, 4 ex