Results 1 to 10 of about 284 (165)

Estimation of Acacia melanoxylon unbleached Kraft pulp brightness by NIR spectroscopy

open access: yesForest Systems, 2015
Aim of the study: The ability of NIR spectroscopy for predicting the ISO brightness was studied on unbleached Kraft pulps of Acacia melanoxylon R. Br. Area of study: Sites covering littoral north, mid interior north and centre interior of Portugal.
António J. A. Santos   +2 more
doaj   +9 more sources

IMPROVEMENT OF PAPER PROPERTIES OF RECYCLED UNBLEACHED SOFTWOOD KRAFT PULPS BY POLY(ALLYLAMINE HYDROCHLORIDE)

open access: yesBioResources, 2011
Polyelectrolytes containing amine functional groups such as PAH (poly(allylamine hydrochloride)) can be useful, under certain conditions, for improving paper strength.
Paulina Mocchiutti   +3 more
doaj   +3 more sources

Dielectric properties of oil impregnated kraft and soda pulps [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2013
This research was carried out with the aim of determining dielectric properties of bagasse unbleached soda pulp, long fiber kraft pulp and a mixture of both (20% kraft + 80% bagasse soda).The hand-sheets with 60 g/m2 basis weight were made after ...
kezhal Moradyan Gilan   +3 more
doaj   +1 more source

Comparison of Some Properties of Selected Non-Wood Plants and Wood Species and Unbleached Kraft Pulps from These Materials

open access: yesJournal of Natural Fibers, 2021
The different properties of hemp stalks, hemp woody-core, and Miscanthus × giganteus stalks cultivated in Poland and physical properties of unbleached kraft pulps from these materials were compared with the ones of pulps from pine, birch and wheat straw.
Dariusz Danielewicz   +2 more
doaj   +1 more source

Preventing Strength Loss of Unbleached Kraft Pulp [PDF]

open access: yes, 2003
Kraft pulp fibers lose inter-fiber bonding ability when they are dried during the manufacture of paper. Adverse environmental consequences of this loss include (a) limitations on the number of times that kraft fibers can be recycled, (b) reduced paper strength, sometimes making it necessary to use heavier paper or paperboard to meet product strength ...
Hubbe, Martin   +2 more
openaire   +2 more sources

Effects of Modified Cooking on Fiber Wall Structure of E. globulus and E. nitens

open access: yesBioResources, 2015
This work examined the impact of SuperBatch™ (SB), CompactCooking™ (CC), and Lo-Solids™ (LS) modified kraft pulping on the fiber wall structure of unbleached and bleached unrefined pulps of E. globulus and E. nitens. The kappa number target for all pulps
Rudine Antes, Olli Pekka Joutsimo
doaj   +1 more source

Effect of Hornbeam chips fungal pre-treatment on bleachability of its Bio-kraft pulp [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2015
Bio-kraft pulp made from Hornbeam chips fungal pre-treated (1, 2 and 3 weeks) was used for investigation of its bleachability by DED sequence. Before and after of each step in mentioned sequence, pulps and bleaching spent liquors characterized and then ...
Esmaeil Rasooly Garmaroody   +1 more
doaj   +1 more source

THE VARIATIONS IN THE CHEMICAL AND OPTICAL PROPERTİES OF KRAFT PULP DURING THE BLEACHİNG

open access: yesForestist, 1999
The quality of paper is considered to be affected by the variations of Chemical and optical properties of unbleached and bleached kraft pulps obtained from the bleaching stages.
Mualla BALABAN, Celil ATİK
doaj   +1 more source

Cellulose Nanofibril (CNF) Films and Xylan from Hot Water Extracted Birch Kraft Pulps

open access: yesApplied Sciences, 2019
The effects of xylan extraction from birch kraft pulp on the manufacture and properties of cellulose nanofibril (CNF) films were here investigated. Hot water extractions of bleached and unbleached kraft pulps were performed in a flow-through system to ...
Marc Borrega, Hannes Orelma
doaj   +1 more source

Energy Analysis of Bioethanols Produced from Dendrocalamus Latiflorus

open access: yesChemical Engineering Transactions, 2013
The Ma bamboo (Dendrocalamus latiflorus Munro) covers 152,300 ha in Taiwan, roughly of 7.2 % the overall forest area. This study calculated the energy and mass balance of Ma bamboo as a feedstock for bioethanol production.
H. Ko C   +5 more
doaj   +1 more source

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