Pembuatan kulit atasan sepatu bebas krom

Widari Widari, Rambat Rambat, Suparti Suparti


The purpose of this study was to obtain the process formulation for leather tanning in manufacturing chrome-free upper leather. The tanning process used vegetable tanning material (mimosa), syntan, and combination of vegetable-syntan. The leather were prepared using 25, 30, and 35% of mimosa, 10, 15, and 20% of syntan, and 15:10; 15:15; and 20%:15% of mimosa:syntan. Chrome tanning material 6% was used as control. Based from the results of physical testing according to SNI 0234:2009, the resulting leather met the quality requirements for shoe upper leather. Tanning process with 20% syntan gave the best result.
Keywords: chrome, vegetable, syntan, leather, shoes
Tujuan dari penelitian ini adalah memperoleh formulasi tahapan proses penyamakan kulit dalam pembuatan kulit atasan sepatu bebas krom. Proses penyamakan menggunakan bahan penyamak nabati (mimosa), syntan dan kombinasi antara nabati–syntan. Variasi perlakuan ditetapkan pada penggunaan bahan nabati 25, 30 dan 35%, bahan penyamak syntan 10, 15 dan 20%, dan kombinasi nabati:syntan 15:10, 15:15 dan 20%:15%. Sebagai kontrol adalah bahan penyamak krom 6%. Ditinjau dari hasil uji fisika dengan tolok ukur SNI 0234:2009, kulit hasil penelitian telah memenuhi persyaratan mutu kulit untuk atasan sepatu. Proses penyamakan terbaik diperoleh dengan penggunaan syntan 20%.
Kata kunci: krom, nabati, syntan, kulit jadi, sepatu

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