We investigate a traditional Malay formulation of black ink comprising soot particles suspended in water, mixed with cashew gum binding agent and natural additives. The formulated ink, drawn on a European handmade paper (Cartiere Magnani), is then subjected to two types of standard accelerated aging test; standard method for moist-heat aging (ISO 5630-3:1996) 85°C and 65% relative humidity with interval period 1,2,3,6, and 12 days, and the light fastness test according to the standard procedures ASTM D 3424 & ASTM G 155 (Xenon Arc) with total exposure of 120 hours. In both techniques, the color changes are evaluated through visual inspection against a grey scale and also instrumentally measured color coordinates. For comparison, the tests are also repeated on Chinese and Indian commercial inks. The traditional Malay black ink underwent both accelerated ageing procedures without any significant changes in the visible reflectance spectra and the total color difference. The commercial Indian, however, shows considerable fading upon the light fastness test. These results substantiate the durability and permanency of the traditionally formulated Malay black ink.<br/>

Durability and permanency of formulated traditional Malay black ink on European handmade paper upon accelerated aging tests

249th National Meeting (2015)

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