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All Journal Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Herry Suseno
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Arts Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Social Sciences

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PEMBUATAN FATLIQUOR DARI CAMPURAN MINYAK SAWIT DAN KEDELAI Herry Suseno; Sri Sumarni; M.W. Syabani
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 13 No 1 (2014): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Fatliquoring is one of important processes in leather tanning. Its main process function is to keep the quality of leather, especially on organoleptical test. The aim of this research is to study the blend of palm oil and soybean oil (1:1 ratio) as fatliquor raw materials. Palm oil was chosen because Indonesia has abundant material and also is one of main players in palm plantation and production. At the beginning, the raw material is analyzed to determine the quality, i.e. acid number, saponification number, iod number and fatty acid contains. Then the raw material is processed to be fatliquoring agent with sulfitation process. The fatliquoring agent was then analyzed to determine its quality and applied in fatliquoring leather. Finally, the leather mechanical characteristics were tested, i.e. tensile, elongation and stitch strengths. The result gives information that the application of fatliquor makes the leather have better test parameter. The value of tensile, elongation and stitch strengths for leather without fatliquor 160 kg/cm2, 63% and 82 kg/cm; and for leather with fatliquor 250 kg/cm2, 142% and 163 kg/cm. Therefore, fatliquoring agent made from palm oil and soybean oil blend can be used as alternative material in fatliquoring process.
PEMBUATAN PUPUK ORGANIK DARI LIMBAH PADAT PENYAMAKAN KULIT DI CV. CISARUA CIANJUR JAWA BARAT Resty Arestya; Herry Suseno; RLM. Satrio Ari Wibowo
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 12 No 2 (2013): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Leather industry is one of industries supporting a country’s economy which has a negative side such as waste resulted from skin processing. Fleshing process is one those producing solid waste in the form of remnants of protein and fat that is potentially causing the pollution because of waste decomposition. CV. Cisarua located at Perintis Kemerdekaan 1001 Cianjur is one of the leather processing company in West Java. The company produces shoes leather and causes the emergence of some solid waste including: green fleshing waste from the early stages of leather processing, fleshing waste after liming process, shaving and WWT sludge waste as a by product of the waste water treatment. Those wastes were then processed into organic fertilizer. The processes of making organic fertilizer consist of material preparation, size reduction, pile preparation, inversion, maturation, milling, and drying under the sun. Efforts to maximize the process of making organic fertilizer were done by adding rotten rice as starter so that it could speed up the composting process in a laboratory scale. Feed quality testing is then known using physical, chemical and biological testing using marigolds plant/suring. Fertilizer was made using tannery solid waste added with (A) and without (B) rotten rice starter. Fertilizer A with 1.075% total nitrogen content using the composition of 40% cooked fleshing, 40% raw fleshing, 20% cow dung and starter 1:5 has met the requirements of SNI-09-7030-2004 (min. 0.4%). Fertilizer B with 0.9850% total nitrogen content using the composition 40% cooked fleshing, 20% raw fleshing, 10 shaving powder, 20% cow dung and 10% WWT sludge meets the requirements of SNI-09-7030-2004 (min. 0, 4%).
Co-Authors Muh. Wahyu Syabani Resty Arestya RLM. Satrio Ari Wibowo Sri Sumarni