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Effect of Some White Pigments on the Actinic Degradation of Cotton


THE action of solar radiation in reducing the strength of cotton is well known. In our experience, 12-oz. grey cotton duck exposed to weather in a non-industrial atmosphere near Melbourne, Victoria, loses about 25 per cent of its strength in twelve months, due solely to the action of light. Although fungal growth is commonly observed on exposed cotton fabrics, the species isolated have always been non-cellulolytie; fibres from exposed fabrics when examined microscopically by the modified congo red test1 show actinic damage but no fungal damage.

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  1. Young, F. S., and Hindson, W. R., Defence Standards Laboratories, Department of Supply, Australia, Report 176 (1949).

  2. Hindson, W. R., Defence Standards Laboratories, Interim Report (1949).

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HINDSON, W., KELLY, P. Effect of Some White Pigments on the Actinic Degradation of Cotton. Nature 177, 1241–1242 (1956).

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