Results 21 to 30 of about 588 (182)

Production and Characterization of Cnf and Lcnf, and Manufacture of Lcnf-nanostructured Packaging Papers

Chemical Engineering Transactions, 2019
Nanotechnology applied to pulp and paper sector enables production of nanostructured papers with excellent strength properties. The addition of lignocellulose nanofibrils (LCNF) to traditional kraft pulps is an attractive alternative for production of ...
Iara Demuner, Jorge Luiz Colodette, Fernando J.B. Gomes, Rubens C. Oliveira   +3 more
doaj   +1 more source

Dual-polyelectrolyte adsorption of poly(allylamine hydrochloride) and xylan onto recycled unbleached kraft pulps [PDF]

, 2012
The effects of a double polyelectrolyte adsorption of poly(allylamine hydrochloride) (PAH) and xylan (Xyl) on a recycled unbleached softwood kraft pulp were studied.
Mocchiutti, Paulina, Galván, María Verónica, Cornaglia, Laura Maria, Zanuttini, Miguel Angel Mario   +3 more
core   +1 more source

Ethanol Production from Hydrolyzed Kraft Pulp by Mono- and Co-Cultures of Yeasts: The Challenge of C6 and C5 Sugars Consumption

Energies, 2020
Second-generation bioethanol production’s main bottleneck is the need for a costly and technically difficult pretreatment due to the recalcitrance of lignocellulosic biomass (LCB).
Rita H. R. Branco, Mariana S. T. Amândio, Luísa S. Serafim, Ana M. R. B. Xavier   +3 more
doaj   +1 more source

Bleached kraft pulp production from Pinus tecunumanii (Eguiluz e Perry) Produção de polpa kraft branqueada de Pinus tecunumanii (Eguiluz e Perry)

Revista Árvore, 2005
The use of 12-year-old Pinus tecunumanii (Eguiluz e Perry) grown in Colombia was evaluated for bleached kraft pulp production. Kraft pulps of kappa number 30 ± 1 were produced, and oxygen delignified and bleached to 90% ISO with ECF processes.
Leonel F. Torres, Roberto Melo, Jorge Luiz Colodette   +2 more
doaj   +1 more source

Investigation on potential long fibre Pinus eldarica Kraft Pulp [PDF]

تحقیقات علوم چوب و کاغذ ایران, 1998
Kraft pulping of Pinus eldarica wood was carried out at 18% active alkali, 25% sulphidity and pulping temperature & Time of 165 C and 90 minutes pulp was compared with imported unbleached long fibre pulp with the kappa number of 34.
Fardad Golbabaei, Ahmad Jahan latibari, Abdolrahman Hosseinzadeh, Sayed Javad Sepidehdam, Amir Nourbakhsh   +4 more
doaj   +1 more source

INFLUÊNCIA DO CONTEÚDO DE XILANAS NA BRANQUEABILIDADE, PROPRIEDADES HIGROSCÓPICAS, FISICO-MECÂNICAS E ÓPTICA DE POLPAS BRANQUEADAS DE EUCALIPTO

Química Nova, 2015
Bleached eucalypt kraft pulps are widely used in print and writing (P&W) and tissue paper manufacture. Among the quality requirements of pulp for these papers, xylan content has been controversial.
Valéria J. Gomes, Dalton Longue Jr, Jorge L. Colodette, Robisnéa A. Ribeiro, Heder Braun   +4 more
doaj   +1 more source

Stellera chamaejasme Roots as Raw Material for Pulp Production

BioResources, 2014
Cellulosic pulps were prepared from Stellera chamaejasme roots using soda, soda-anthraquinone (soda-AQ), and kraft pulping processes. S. chamaejasme is composed of 73.5% holocellulose, 39.7% α-cellulose, and 17.6% lignin, similar to wheat straw and other
Haichao Li, Huizhen Sun, Ling Pu, Zhibin He   +3 more
doaj   +1 more source

Bleach boosting and direct brightening by multiple xylanase treatments during peroxide bleaching of kraft pulps [PDF]

, 1996
The effects of multiple xylanase treatments were assessed during the peroxide bleaching of three pulps: Douglas-fir (kraft); Western hemlock (oxygen delignified kraft); and trembling Aspen (kraft).
Jong, E., de, F. Miguel Gama, Wong, K.K.Y., Wong, Ken K. Y., Saddler, J.N., Gama, F. M., Lori A. Martin, de Jong, E., Ken K. Y. Wong, Gama, F.M., John N. Saddler, Gama, F. Miguel, de Jong, Ed, Martin, L.A., Wong, Ken K.Y., De Jong, Martin, Lori A., Saddler, John N.   +17 more
core   +1 more source

Effect of particle size on the surface properties and morphology of ground flax

, 2013
Flax fibers were ground with a ball-mill and four fractions with different size ranges were collected by sieving. These were tested for water sorption, degree of polymerization (DP), copper number, hydroxyl number and analyzed by X-ray diffraction (XRD),
Tóth, András, Bandi, Éva, Fekete, Erika, Csiszár, Emília, Sajó, István E., Koczka, Béla   +5 more
core   +1 more source

From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp

Journal of Applied Polymer Science, Volume 143, Issue 16, April 20, 2026.
This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed, Lelia Lawson, Bernardo Araujo Souto, K. M. Abdun Noor, Dagem Z. Haddis, Frehiwot T. Hailu, Jane Batcheller, David C. Bressler, Patricia I. Dolez   +8 more
wiley   +1 more source