A Research on the use of Aluminum Sulphate in Parchment Production and its Eff ects on Ageing and Color

Abstract

In this study, diff erent proportions (2.5%, 5% and 10%) of Aluminum sulfate were used as tanning agents during parchment production. The research was carried out on goat skin and also there were no usage of any tanning agents as control groups. Finished leathers have been exposed to ageing conditions. Before and aft er ageing color measurements on all fi nished leathers have been conducted with Konica Minolta CM-3600d brand spectrophotometer. The impacts of the aluminum sulfate utilized in the research on light fastness were also inspected by using an ATLAS-XENOTEST ALPHA+ test instrument. Visible whitening on the color of parchment was observed when tanning process with aluminum sulphate was performed.