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MECHANICAL PULPING: Latency removal of mechanical pulps: Phenomenological observations
Nordic Pulp & Paper Research Journal, 2013Jiyang Gao +3 more
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Electro-brightening of mechanical pulp
2009The electro-oxidation of sodium carbonate (Na₂C0₃) to percarbonate (C₂O₆²⁻), with its subsequent hydrolysis was investigated as a means to produce peroxide and to drive the in-situ electrochemical brightening of thermo-mechanical pulp. The conditions for the electrochemical production of peroxide and factors that affected the in-situ electrochemical ...
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Fluorescence spectroscopy of mechanical pulps
1994Corrected steady-state fluorescence emission spectra of various mechanical pulps and celluloses were measured using an excitation wavelength of 320 nm. Regardless of its source, cellulose displayed a relatively high characteristic emission. The emission spectra of mechanical pulps were red-shifted with respect to that of cellulose, and peak shapes were
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Gap mechanics in pulp refiners
TAPPI JournalStudies of pulp refining have shown that a single bar impact on pulp has only a 1%•5% probability of producing a successful refining effect. This study has explored the reason why. An analysis of refining kinetics suggested that small segments of a fiber length, about a fiber diameter in size, are treated during each impact.
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Preparation of Dissolving Pulp by Combined Mechanical and Deep Eutectic Solvent Treatment
Polymers, 2023Guihua Yang, Xincai Li, Jiachuan Chen
exaly
Bleaching of mechanical pulps: Implications of demethylation of pectin for pulp brightness
2005Dithionite bleaching of mechanical pulps and fractions thereof could be boosted by enzymatic pretreatment with pectinmethylesterase (PE). As a consequence of hydrolytic action of PE partial demethylation of pectin occurred with a concurrent release of methanol and increase in pulp charge.
Pere, Jaakko +4 more
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