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INDONESIA
Majalah Kulit, Karet, dan Plastik
Published by Kementerian Perindustrian Republik Indonesia
ISSN : 18296971     EISSN : 24604461     DOI : 10.20543
Core Subject : Engineering,
Engineering
Majalah Kulit, Karet, dan Plastik (Journal of Leather, Rubber, and Plastics) publishes original research focused on materials, processes, and waste management in the field of leather, rubber, and plastics.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 5 Documents
 1 
Search results for , issue " Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik" : 5 Documents clear
Zeolit sebagai bahan pengisi pada kompon karet ditinjau dari sifat fisika vulkanisatnya Setyowati, Penny
Majalah Kulit, Karet, dan Plastik Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1623.299 KB) | DOI: 10.20543/mkkp.v18i1.269

Abstract

Zeolities are natural rock found in a large – scale in Indonesia and it can be used as rubber and plastic filler. In this research, mordenite zeolite was used as a rubber compound filler at 50 – 100 phr (per hunddreed rubber) variation and with High Abrasion Furnace (HAF) black and minarex oil combination by 10/6 and 20/8 ratio. The aim of the research was to study the influence of zeolite in rubber compound, concerning to physical properties of the vulanicase. The effect of zeolit addition on rubber compound was a decrease in the tension break 13.85-15.33%, the elongation break 9.5-12 %, the tear resistance 9.1-23.1 % and the abrasion resistance 15.75-23.95% of the volcanicase, while the hardness was increase 10 %. Decreasing of such physical properties can be prevent by mixing it with HAF black and minarex oil combination. The best result was reached at application of zeolite 50 phr with HAF black and minarex oil combination.                           . Key words : Zeolit, rubber, filter.
Pengaruh penggunaan bahan pewarna alam dari ekstrak kayu terhadap sifat fisis kulit ikan kakap merah Kasmudjiastuti, Emiliana; Widhiati, Widhiati
Majalah Kulit, Karet, dan Plastik Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1830.283 KB) | DOI: 10.20543/mkkp.v18i1.265

Abstract

 The objective of this research is to identify the effect of some natural dye of wood extract to the physical properties (tensile strength, elongation and rub fastness resistance) of kakap (Lutjanidae) fish skin leather. Fifteen pieces of dry preserved kakap fish skin were used in this research, and tanned using syntan and alum. The dyeing process was done using natural dyes of wood extract of Caesalpinia sappan L, Artocarpus heterophyllus, Swietenia mahagoni JACQ, Maclura cochinensis, and Ceriops tagal. The result of research indicated that the kind of applied natural dyes were not affect the physical properties of Kakap fish skins. The fish skins dyed using the such natural dyes was able be utilised as material in leather goods manufacturing. One of the five types of natural dye used in this research, Swietenia mahagoni JACQ wood extract produced the best dyed leather having good tensile strength, elongation/flexibility and the colour fastness. The tensile strength was 213,15 kg/cm2, flexibility 56% and colour fastness with wet white cloth 3/4 (grey scale value) and with dry white cloth 4/5 (grey scale value), respectively. Key words : kakap fish skin, natural dyes, physical properties.
Pengaruh penggunaan tepung fleshing dalam pakan ayam pedaging terhadap kenaikan bobot ayam Widowati, Titik Purwati; Susila, R. Jaka; Sutyasmi, Sri
Majalah Kulit, Karet, dan Plastik Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1667.363 KB) | DOI: 10.20543/mkkp.v18i1.266

Abstract

 The  fleshing waste ratio of leather processing is very high, that was about 70-230 kgs/ton of raw material. Those waste containing high amount of protein. The aim of this experiment was to know the influenceof fleshing powder on the increasing of broiler body weight. This experiment was classified into two steps. The first step was focused on the preparation of fleshing powder. The second step was the application of fleshing powder as protein substitute of broiler feed. The results showed  that the quality of fleshing powder prepared by pressurize steaming at 2 atm for 15 min was better than by unpressurized method. The additional and the final weight of broilers feed by fleshing powder were not significantly difference with the control. Therefore, fleshing powder could be used as protein substitute on the prepraration of broiler feed instead of fish powder.  Key words : fleshing, protein powder,broiler feed, friendly environment. 
Penggunaan lemak fleshing industri penyamakan kulit untuk pembuatan sabun mandi Sunaryo, Ignatius; Sutyasmi, Sri; Widari, Widari; Murwati, Murwati
Majalah Kulit, Karet, dan Plastik Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2992.527 KB) | DOI: 10.20543/mkkp.v18i1.267

Abstract

An experimentation the Use of Fat from Fleshing of Leather Tanning Industry to Produce Bath Soap was aimed to use the fat from fleshing to gain the alternative source of basic material for bath soap, to assist the industry to solve the environmental pollution and increasing the population income. The point to be gained after finishing this experiment was to find out the problem solving of environmental pollution problem caused by fleshing from leather tanning industry. Goat/sheep fleshing from one of leather tannings in Yogyakarta was collected and had been used as a source of fat. Fat from fleshing was produced by 3 kinds of heating those were coocked, “kukus”, and steam. The results of fat analysis showed that the average of saphonification value was 201.01; free faty acid value was 0.86%; acid value was 1.72 and the unsaphonification fat value was 1.44%. The variations of fat used for bath soap manufacture were 55%, 60%, 65%, 70% and 75%; whereas the variations of sodium hydrokside were 11, 14, 17. 20 and 23, each of which was in parts. The result of this experiment showed that the fat from fleshing could be a source of fat and could be used for bath soap manufacture. In such way, it could be as a pollultion problem solving to the industry. The result of bath  soap analysis showed that almost all of the variations of fat and sodium hydrokside could meet the SNI 06-3532-1994 about bath soap. Economically point of view showed that the value of producing fat in various regions such as Jabotabek, West Java, Center Java, DIY and East would vary from Rp6,000,000,- to Rp.200,000,000,-; whereas the value of producing bath soap would vary from Rp 21,000,000,- - Rp 700,000,000,- Key words: fleshing, fat, soap, environment, tannery, waste management. 
Pengaruh ekstrak nanas (ananas comosus) sebagai agensia bating terhadap kekuatan tarik dan suhu kerut kulit kelinci lokal samak nabati Widowati, Titik Purwati; Setyawardani, Triana; Hastuti, Dwi
Majalah Kulit, Karet, dan Plastik Vol 18, No 1 (2002): Majalah Barang Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1549.167 KB) | DOI: 10.20543/mkkp.v18i1.268

Abstract

The aims of experiment were to find out the effects of concentration of pineapple extract, bating time and their interactions on tensile strength and shrinkage temperature of local rabbit skin, which was tanned by vegetable tanning agent. The materials of this experiment were 27 rabbit skins used as bating object. The experimental design used was completely randomized design (CRD) with factorial treatments 3 x 3. The results of analysis showed that concentration of pineapple extract, bating time and their interactions were not significantly affect (P < 0,05) on tensile strength and shrinkage temperature . The average of the tensile strength at this experiment was 157,394 kg/cm2 and fulfilled the requirement of SNI. 06-0463-1989: Kulit Lapis Doma/Kambing Samak Kombinasi (Krom Nabati), Mutu dan Cara Uji, and shrinkage temperature was 79,70oC that means fulfilled Nayudama’s (1978) did requirement. Key words : pineapple slurry, tensile strength, shrinkage temperature, rabbit skin.

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