Abstract
Seven kinds of traditional Chinese paper made recently, i.e. three types of xuan paper, daqian writing paper, fuyangxuan paper and wenzhou bast paper, were selected to investigate their strength and durability after accelerated ageing. The effect of jiaofanshui (animal glue with alum) as an acidic sizing agent was also studied. Xuan paper and daqian writing paper have higher pH values, and a relatively high ash content, which consisted of mainly Ca and Si. The deterioration rate of their strength was lower. Xuan paper that is made using some of the traditional methods showed high buffering capacity towards the acidic sizing agent. Fuyangxuan paper and wenzhou bast paper, which were cooked and bleached using chemical agents in the same way as chemical wood pulp, had a higher cellulose content, but their DP decreased very fast during ageing. Therefore the deterioration rate of their strength was high. Fuyangxuan paper also had a relatively high degree of oxidation.
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