The Effect of Chemical Additives on the Light Reversion of Mechanical Pulp

Shigetoshi Omori; Byung-Ho Yoon; Kenzoh Taneda

doi:10.2524/jtappij.47.1388

JAPAN TAPPI JOURNAL

Online ISSN : 1881-1000
Print ISSN : 0022-815X
ISSN-L : 0022-815X

The Effect of Chemical Additives on the Light Reversion of Mechanical Pulp

Shigetoshi Omori, Byung-Ho Yoon, Kenzoh Taneda

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Keywords: Mechanical pulp, Chemical additives, Light reversion, UV Absorber, Anti-oxidant, PC-M number, RI index

JOURNAL FREE ACCESS

1993 Volume 47 Issue 11 Pages 1388-1394

DOI https://doi.org/10.2524/jtappij.47.1388

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Abstract

The effects of UV absorber and anti-oxidant additives on the light reversion of thermomechanical pulp (TMP) were tested. Among various additives tested, 2, 4, 6-triphenylphenol, benzylidine acetone, triallyl-s-triazine-2, 4, 6-(1 H, 3 H, 5 H)-trione, and uracil were more effective. When UV absorber and anti-oxidant were combined and applied to hand sheets, synergistic effects were observed and resulted in improvement of more than 70% RI Index in some cases.

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