Sen'i Gakkaishi
Online ISSN : 1884-2259
Print ISSN : 0037-9875
STUDIES ON THE WET STRENGTH PAPER
(XV) THE INFLUENCE OF THE VARIOUS POLAR MEDIA ON THE FIBER BONDING OF PAPER
Isamu Yoshino
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1958 Volume 14 Issue 1 Pages 11-14,8

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Abstract

The zerospan tesile strength, tensile strength and load elongation curve of paper are determined, after being soaked in six kinds of media, water, glycerin, monoacetin, diacetin, triacetin, decarin, at room temperature or after being soaked in the same media at 180°C, followed by their replacement with water. The results obtained at room tenperature show that the dry strength of the untreated paper is more dominantly related to the bonding between fibers than the original strength of the fiber, and that the higher the media are in the cohesion energy density, the more readily they break the bonding. The results obtained at 180°C, show that the fiber bonding, which causes the development of the wet strength of the heat treated paper, is effectively formed in the media of lower cohesion energy density. These evidences seem to support the validity of the interpretation that the hydrogen bonds, which cause the development of the wet strength of the heat treated paper are formed between fibers.

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