Results 51 to 60 of about 1,752 (175)
On Studies of Preparation of Kraft Pulp
JAPAN TAPPI JOURNAL, 1961 Using the laboratory Valley beater, the following results were obtained.1) When the beating load was constant, the beating with the high peripheral speed of beater roll required the fairly lower freeness than it of the pulp beaten with the low peripheral speed of the roll to attain the constant ratio of tearing strength to bursting strength of paper ...
Fujinami, Nobuakira, Okamura, Takefumi
+6 more sources
Sulfuric acid bleaching of kraft pulp 1: Bleaching of hardwood and softwood kraft pulps
Journal of Wood Science, 1999 To develop a new nonchlorine bleaching technology, hardwood and softwood kraft pulps, before and after oxygen-alkali predelignification, were treated with dilute sulfuric acid solutions (pH 1.0-1.8) at 100°C for 1 h and then extracted with aqueous sodium hydroxide at 70°C for l h. Hardwood kraft pulp was successfully bleached.
Tsutomu Ikeda +4 more
openaire +1 more source
SmartSys, Volume 2, Issue 3, September 2026.Cellulose nanofibril papers are engineered to tune surface smoothness and structural organization for triboelectric nanogenerators. Reduced surface roughness improves effective contact and charge transfer, while structural modulation enhances triboelectric performance.
Haider Iftikhar +7 more
wiley +1 more source
Recent Developments in Electrochemical Lignin Depolymerization Using Flow Systems: A Mini Review
ChemElectroChem, Volume 13, Issue 16, 18 August 2026.This review summarizes the current state of the electrochemical depolymerization of lignin focusing on studies performed in flow cells. Three anodic strategies are distinguished: oxygen evolution reaction substitution for energy‐efficient hydrogen generation, nonselective oligomer production, and selective aromatic monomer synthesis, such as vanillin ...
Lukas Lentz, Jens Tübke, Robin Kunkel
wiley +1 more source
Scientific Reports, 2023 This work deals with providing a green pulping process of rice straw with zero waste discharged, via valorization of its by-product as a promising precursor for production of carbon nanostructures.
Vivian F. Lotfy +4 more
doaj +1 more source
Evaluation of bleachability on pine and eucalyptus kraft pulps [PDF]
CERNE, 2013 In recent decades, the pulp industry has been changing and improving its manufacturing processes in order to enhance production capacity, product quality and environmental performance. The aim of this study was to evaluate the bleachability effect on the efficient washing and alkaline leaching in eucalyptus and pine Kraft pulps using three different ...
Andrade, Marcela Freitas +2 more
openaire +4 more sources
Acid Sulfite Pulping of Hemp: Effects of Processing Conditions on Lyocell Pulp Quality
Journal of Polymer Science, Volume 64, Issue 16, Page 3364-3381, 15 August 2026.Industrial hemp is emerging as a promising renewable source for next‐generation textile fibers. This study evaluates whether acid sulfite pulping can produce hemp‐based dissolving pulp suitable for lyocell manufacturing. While the process is historically linked to increased cellulose accessibility, it did not achieve the low lignin content and ...
Lelia Lawson +3 more
wiley +1 more source
EFFECTS OF ALKALINE PRE-IMPREGNATION AND PULPING ON MALAYSIA CULTIVATED KENAF (HIBISCUS CANNABINUS
BioResources, 2010 This study was carried out to identify an appropriate alkaline pulping condition for Malaysia cultivated kenaf (Hibiscus cannabinus L.). The chemical composition of the kenaf bast and core fibers, and also whole stalk with different growing time were ...
Lin Suan Ang +2 more
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ChemSusChem, Volume 19, Issue 15, 14 August 2026.This study reports the synthesis of bio‐based nonisocyanate polyhydroxyurethanes from crude lignins and depolymerized lignin oligomers. The structure–properties relationships were largely explored and highlighted the key role of lignin functionality on the physical properties of the materials. Lignins are the main source of aromatic compounds in nature.
Nathan Wybo +5 more
wiley +1 more source
BioResources, 2008 This paper presents a preliminary study for the production of dissolving pulp from Trema orientalis (Nalita). Water prehydrolysis kraft and soda-ethylenediamine (EDA) pulping for the production of dissolving pulp from T.
M. A. Quaiyyum +3 more
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