Effects of Pre-treatment with Commercial Cellulase and Hemicellulase and Laboratory Beating of Unbleached Pine Kraft Pulp on Freeness, Paper Strength, and Fiber Quality

被引：0

作者：

Danielewicz, Dariusz ^{[1
]}

机构：

[1] Lodz Univ Technol, Ctr Papermaking & Printing, Papermaking Fibrous Pulps Technol Dept, Wolczanska 223 St, PL-90924 Lodz, Poland

来源：

BIORESOURCES | 2024年 / 19卷 / 04期

关键词：

Pine regular kraft pulp; Cellulase/hemicellulase enzyme preparation; Pre-treatment; Beatability; Tensile and tear strengths; Fibre-quality numbers; ENZYMATIC TREATMENT; REFINING ENERGY; ENZYMES; PAPERMAKING; REDUCTION; IMPACT; TEAR;

D O I：

10.15376/biores.19.4.7737-7751

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The effects of laboratory beating on unbleached regular grade pine kraft pulp (UPKP), pre-treated with commercial cellulase/hemicellulase enzymatic preparation (C/HEP) were assessed using degrees of Schopper-Riegler (degrees SR) degrees SR) and fibre-quality numbers (FQN). The tests showed a significant increase in the degrees SR (used in papermaking laboratories and industry to assess the degree of beating) of the UPKP after its enzymatic pre-treatment in the amount of 0.25 to 5.0 mL/kg of pulp and beating. However, only a several percent reduction of beating time was observed when the effect of this pretreatment of pulp on the speed of its beating was determined using another method. The treatment of the pulp selected for research with C/HEP before beating negatively influenced its strength properties after this process. The results correlated well with the most important basic fiber properties from the standpoint of papermaking.

引用

页码：7737 / 7751

页数：15