Date of Award

4-1980

Degree Name

Bachelor of Science

Department

Paper Science and Engineering

Abstract

The object of this thesis is to study the aging of recycled paper, focusing on strength and optical properties. To observe the changes in these properties, the following experimental procedure was used. 100% softwood fibers were pulped, made into handsheets, tested, artificially aged, again tested, repulped and bleached before being made into handsheets once again. Because of cross-linking due to heating, the aging strength losses were masked.

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