Penggunaan ekstrak kayu nangka (artocarpus heterophyllus) sebagai bahan pewarna untuk kulit

The objective of this experiment was to evaluate the effect Alum content and time of mordanting on the rub fastness. Natural dyes from wood dyes Artocarpus heterophyllus haved an intermediate acid resistance (acetic acid), a good alkali resistance (natrium carbonat0 but they had very low sulphur acid resistance and low formic acid resistence. Natural dyes from wood dyes Artocarpus heterophyllus could be used as colouring matter on goat skin distributed throughout the substance of the fibre goat skin. Their rub fastness was a good (dry and wet). The variation of amounts alum (1%, 2%, 3%) and treatment of mordanting (before and during dyeing) did not influence on rub fastness (dry and wet).