Penggunaan zat warna alam untuk kulit no

Penggunaan zat warna alam untuk kulit non konvensional
Emiliana Kasmudjiastuti

Abstrak
The objective of this experiment was to apply the natural dyes for non conventional leather with mordant
environmental friendly. This research used lizard skins, cobra skins and kakap fish skins from dried
preservation; woods extract of secang, tegeran, nangka, mahoni and tinggi; chrome and syntan as tanning
agent; alum as mordant and material additives for tanning. The methods of this research were preparation of
solution extract, tanning and testing. The principles of dyeing with the natural dyes used natural dyes withoud
mixed dyestuffs and mordant environtment friendly. The research results showed that the natural dyes from
secang woods, tegeran woods, nangka woods, mahoni woods and tingi bark were acid dyes with pH of 4 – 5
and they could be applied on lizard skins, cobra skins and kakap fish skins. The natural dyes from mahoni
woods had superior acid resistance (sulphate acid, formic acid and acetate acid), the value was 4/5 (grey scale)
and also they had the dry and wet rub fastness which were better than those of natural dyes from secang,
tegeran, nangka, and tinggi.

Keywords : natural dyes, woods extract, non conventional skins.

Majalah Kulit, Karet, dan Plastik, 22(1), 20-25, (2006)

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