Aditya Wahyu Nugraha, Ono Suparno, Nastiti Siswi Indrasti, Hoerudin Hoerudin
Chromium (III) sulfate is a popular tanning agent for producing leather. However, chrome tanning wastewater is one of the problems in the leather tanning industry. To prevent this, tanning using vegetable materials can be used in the leather tanning process. One of the natural ingredients that can be used is mimosa. However, mimosa is relatively expensive, so a substitute/combination tanning agent is needed to make tanning costs cheaper. This research aims to determine the effect of using a combination of mimosa and silicic acid from rice husk (RHSA) tanners on the quality of the tanned leather produced. This research uses a completely randomized factorial design with mimosa and RHSA as factors. The analysis shows that the best treatments were 20% mimosa and 20% RHSA. In addition, the analysis shows that the treatment met the standard. The resulting shrinkage temperature was 84 °C, tear strength was 39.98 N mm-1, tensile strength was 26.42 N mm-2 and elongation at break was 41%. Combination tanning also shows no significant difference from conventional tanning and reduces mimosa without decreasing leather quality. © 2023, idd3. All rights reserved.
Department of Agroindustrial Technology, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Way Hui, Jati Agung, South Lampung, 35365, Indonesia; Department of Agroindustrial Technology, Faculty of Agricultural Engineering and Technology, IPB University, Kampus IPB Dramaga, West Java, Bogor, 16680, Indonesia; Research Center for Agroindustry, Research Organization for Agriculture and Food, National Research and Innovation Agency, Jl. Raya Bogor KM 37, West Java, Bogor, 16912, Indonesia
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