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Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Published by Politeknik ATK Yogyakarta
ISSN : 14117703     EISSN : 27462625     DOI : https://doi.org/10.58533/bptkspk.v22i1
Core Subject : Art, Social, Engineering,
Arts Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Social Sciences
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit mencakup beberapa topik mengenai penyamakan kulit (enzim terapan, kimia terapan dan kimia lingkungan), produk samping kulit, teknologi karet, teknologi plastik, pengembangan mesin produksi, teknologi sepatu, dan pengembangan produk kulit yang diterbitkan oleh Politeknik ATK Yogyakarta, Indonesia. Jurnal ini juga mencakup penelitian-penelitian dari multidisiplin ilmu yang lain yang terkait dengan teknologi kulit, karet dan plastik.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 174 Documents
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PENGARUH IMPREGNASI DENGAN RESIN POLIURETAN PADA PROSES FINISHING PENYAMAKAN KULIT SAPI CRUST DYED UNTUK MENGURANGI LOOSE DEFECT ARTIKEL UPPER SHOES Arianda Kusuma Widuri; Elis Nurbalia; Swatika Juhana
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 1 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Finishing action is a finishing technique for crust dyed leather that has been sanded in the surface and finished to form artificial tattoo. Impregnation is a part of a finishing technique that aims to reduce the skin’s absorption ability to liquids, because in general the surface of the skin has high water absorption ability. The raw material for impregnation trial was 5 pieces of crust dyed cowhide with C and R qualities, thickness of 1.2-1.4 mm black. The impregnation material used in 2952 RE (acrylic polymer), melio resin A-716 (polyurethane resin), 8060 EE (penetrator) and aquades. Physical test results of tensile strength before repairing 17.01 N / mm2 after repairing 23.13 N / mm2, elongation of 70.73% after repairing 62.50%, and tear strength of 10.06N after repairing 25.17N. After improvement, there was an increase in the quality of skin quality according to SNI 06-4264-1996.
BELALANG SEBAGAI IDE PERANCANGAN SEPATU FASHION WANITA MODEL DERBY WEDGE Anisa Aulia; Wawan Budi Setyawan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 1 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Grasshopper is an icon from Gunungkidul area which is a tourist destination today and has been adapted to batik motifs as well as various beautiful accessories. To introduce grasshoppers to the wider world, shoes are a new medium of introduction that can be used. Leather base material on the upper part gives the impression of luxury in building image of dressing. The robustness of the wood outsole and the uniqueness of engraving on the outsole present a different aesthetic value than the fashion shoes in general. The authors applied the leather and wood products in the form of women's fashion shoes with grasshoppers as design ideas that will give the impression of feminine, luxurious, and unique. In the making of this final work, a derby wedge model of women's fashion shoes was raised as a design idea. Data collection methods were by observing, documenting, distributing questionnaires, interviewing and conducting literature studies related to the material raised. The sampling technique used was non probability sampling by purposive sampling. The process of designing and manufacturing of products that was done in this self- supporting activity consists of: existing product, brainstorming, image board, stylation, user study, design sketch, movement study, idea sketch, and product making. To produce the same product with the design that made the necessary trials many times and takes a long time.
PENGARUH SISTEM BLOK PRAKTEK TERHADAP KOMPETENSI MAHASISWA JURUSAN TEKNOLOGI PENGOLAHAN KULIT POLITEKNIK ATK YOGYAKARTA Nurwantoro; Alfani Risman Nugroho
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 1 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Teaching factory is a learning model in vocational education institutions that uses a product (goods/services) as a learning media to delivering competency and organized through collaboration between school and industry. The block system is one of the main elements of the Teaching Factory learning method. Through a block system, the process of learning theory and practice is carried out alternately in sufficient time to fulfill the desired competencies. This study aims to determine the effect of the application of the practice block schedule in the learning process to increase the effectiveness of learning at the Leather Processing Technology Department, Polytechnic of ATK Yogyakarta, and to determine the effect of the application of the practice block schedule on improving student competency in the Leather Processing Technology Department, Polytechnic of ATK Yogyakarta. In proving and analyzing this, multiple linear regression analysis was used with the f test and t test. The numbers of samples in this study were 40 students who had graduated. Data collection techniques were by giving questionnaires to students, interviews and documentation. Testing data analysis used validity, reliability, classic assumption tests and linear regression tests. The results of the analysis test can be interpreted that the variable schedule system block practice subjects do not affect general competency. This was because the value of -t count> -t table (-0.004> -2.024) or significance> 0.05 (0.997> 0.05) so that Ho was accepted. To improve the competency of students or graduates there were several variables that can influence other than the block schedule there was still an adequate curriculum and infrastructure. However, the practice block system was able to increase the effectiveness of learning in the Leather Processing Technology Department, Polytechnic of ATK Yogyakarta in accordance with the answers of respondents. Respondents stated that they are very appropriate (15-25%), appropriate (40-60%) and quite appropriate (5-25%).
PERBAIKAN TATA LETAK FASILITAS UNTUK EFISIENSI PEMINDAHAN BAHAN DI PT. ADI SATRIA ABADI YOGYAKARTA Nisya Fitri Febriani; Rofiatun Nafiah
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 1 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

One of the things that affects production process is the layout of the facility. This research aims to observe the influence of facility layout on material transfer efficiency. Efficiency is associated to time saving, effort and cost. Observations were conducted in PT. Adi Satria Abadi, Sleman, Yogyakarta. The material studied is the measurement of facility layout for material transfer efficiency. This research uses observation and documention methods to gain the data; meanwhile experiment and time counting on material transfer were done to solve the problem in order to improve layout efficiency. The layout of production facilities, which is based on the process at PT. Adi Satria Abadi, raises a waste of time and needs to increase efficiency in the material transfer process. Proposed improvements to the layout of facilities are carried out by changing the layout of facilities according to the order of the production process (layout based on products) to expedite the production process. The layout of facilities based on products is more efficient for PT. Adi Satria Abadi with the calculation of efficiency after improvement reached 93%.
STUDI DEPLESI KULIT KAMBING PADA DELIMING MENGGUNAKAN (NH4)2SO4 Prasetyo Hermawan; Alfani Risman Nugroho
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 1 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

The purpose of this research is to study depletion on goat skin in the deliming process. The experiment was conducted using (NH4)2SO4 (ammonium sulfate) as deliming agent and using a jar test tool. Tests performed on pelt and liquid characters during the deliming process; pelt weight, pelt thickness, pH and contain nitrogen and sulfide of deliming liquid. Variations made of use (NH4)2SO4 is; 0, ½, 1.0, 1½, 2 and 2½ gr for 50gr of pelt. The results showed that the use of 1 gr (NH4)2SO4 decreases the pH of the liquid deliming pelt Ca(OH)2 from 11.0 to 8.9. Changes in the weight and thickness of pelt Ca(OH)2 in the use of 1gr (NH4)2SO4 are; 11% and 53% respectively. The use of 1gr (NH4)2SO4 and will produce the fastest rate in weight and thickness of pelt Ca(OH)2, namely each; 0.008% weight / minute and 0.02% thick / minute. In addition to 1gr (NH4)2SO4, the deliming liquid of pelt Ca (OH)2 has a final pH of 8.9 and from pelt NaOH has a final pH of 9.12. Pelt Ca(OH)2 on the use of 1gr (NH4)2SO4 has 13% compression and pelt NaOH on the use of 1.5gr (NH4) 2SO4 has compression 8.8%. The greater use of (NH4)2SO4 will produce fluid deliming with character greater nitrogen and sufide levels, except the lower sulfide levels for pelt Ca (OH)2 sulfide.
KARAKTER FISIS KULIT DOMBA SAMAK NABATI MENGGUNAKAN BAHAN PENYAMAK GAMBIR (UNCARIA GAMBIR) Elis Nurbalia; Prasetyo Hermawan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 2 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

The purpose of this study is to determine the physical character of vegetable tanned sheep using gambir (uncaria gambir). Twelve pieces of sheep pikel skin were tanned using 25% vegetable tanning material from three types of gambir (A, B, C) and two kinds of tanning formulations ((Std) and (Std + Aux)). Skin products were tested for physical characteristics (tensile strength, elongation, tear strength, softness and shrinkage temperature). Furthermore the test results were compared with two standard leather products, namely; standard 1 (SNI 06-0237-1989: standard for lining leather) and standard 2 (SNI 4593: 2011: standard for jacket leather). The use of all types of gambir and tanning formulations has produced skin that pass the standards of skin tensile strength, standard 1 (minimum 75 kg / cm2) and standard 2 (minimum 150 kg / cm2). The results of the skin elongation test showed that only the use of gambier A pass the standard 1 (maximum 25%) and only the use of gambier C with tanning formulations (Std + Aux) that did not pass standard 2 (maximum 60%). The results of the use of gambir A produced the highest tensile / elongation ratio, 12.16 kg / cm2for the tanning formulation (Std) and 10.42 kg/cm2for the formulation (Std + Aux). Skin tear strength was not required by standard 1 and all skins pass standard 2 (minimum 12.5 kg / cm). Skin softness was not required by standard 1 and all skins do not pass standard 2 standards (5.0-7.6 mm). The use of gambier B results the highest temperature shrinkage of skin, this was influenced by a high ratio t/nt (1.77) and low gum content (6.15%), the addition of auxiliaries (penetrator and sulphate oil) in the formulation tanning (Std + Aux) increases shrinkage temperature the skin from 760C to 780C.
PERBANDINGAN KUALITAS KULIT SAPI WET BLUE DENGAN MASA PENYIMPANAN BERBEDA Laili Rachmawati; Tria Novianti; Maria Sri Wiyanti
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 2 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Raw materials storage is important in the leather tanning industry. The obstacle faced by PT Usaha Loka East Java was the problem of decreasing the quality of hide wet blue with different storage periods, so this study is to examine the difference quality of hide wet blue≤ 12 months and ≥ 24 months of storage. Physical testing was carried out at Balai Besar Kulit Karet dan Plastik (BBKKP) Yogyakarta. The results of testing the quality of hide wet blue with a storage period of ≤12 months included moisture content, tensile strength, area of defect and softness respectively were 34.2 ± 0.47%; 23.73 ± 0.32 N / mm2; 1.7 ± 0.85%; and 3.8 ± 0.37 while the results of tests on the quality of the wet cow leather with a storage period of ≥24 months were 5.8 ± 0.40%, respectively; 19.62 ± 0.28 N / mm2; 3.0 ± 0.57; and 2.2 ± 0.66. The decrease of hide wet blue quality with ≥ 24 months storage period was more than ≤ 12 months (p < 0,05).
KARAKTERISTIK JIWA BERWIRAUSAHA MAHASISWA PROGRAM STUDI TEKNOLOGI PENGOLAHAN PRODUK KULIT POLITEKNIK ATK YOGYAKARTA Nurwantoro; Wawan Budi Setyawan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 2 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

This study was conducted to determine the characteristics of entrepreneurial of the TPPK Study Program students in Polytechnic ATK Yogyakarta. Variables observed consisted of the entrepreneurial personality traits include self confidence, attitude towards risk, creative and innovative, discipline and hard works, future oriented, curious know how, and honest and independent. The analytical method used was descriptive qualitative. The results showed that of the 7 characteristics of the entrepreneurial spirit that became the research variable the characteristics of having self-confidence, being able to take risks, being future-oriented, having curiosity, honesty and being independent showed high interest while creative and innovative, disciplined and hard work showing moderate results. Other results of this study indicated that the percentage of ATK Yogyakarta Polytechnic students who had aspirations for independent business (entrepreneurs) is 74.49%. The remaining 25.51% had aspirations as employees, both private and civil servants.
TINJAUAN ASAS-ASAS UMUM PEMERINTAHAN YANG BAIK TERHADAP KEBIJAKAN KARANTINA IMPOR BAHAN BAKUKULIT Risang Pujiyanto, SH, MPA; Sonny Taufan, SH, MH
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 2 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Leather and Footwear Industry as one of the priority and strategic industries to be developed in Indonesia still encounter problems in the availability of raw materials. The availability of raw materials for leather and footwear industries is minimal in the domestic country causing the industry to import from abroad. The next problem is the raw material must go through the quarantine process by the Agricultural Quarantine Agency, Ministry of Agriculture. This research is an empirical law study. The research material was obtained by field research to obtain primary data and library research to obtain secondary data. Data analysis method used was descriptive qualitative. The results showed that First, the Agricultural Quarantine Agency as one of the government agencies is obliged to apply the Good Principles of Good Governance, which includes the Principle of Utilization, the Principle of Accuracy and the Good Service Principle in the quarantine process of raw material. The write-off of quarantine obligations for the import of finished leather is one of the embodiments of the Utilization Principle. The principle of accuracy is realized by examining the completeness of documents, examination results and test results of raw materials. Second, the application of quarantine that has not been in consistent with service standards has become a note in the application of Good Service Principles. Through the application of Good Governance Principles, it is expected that the availability of raw materials in the leather and footwear industries can begin to be overcome.
USULAN PERBAIKAN PENATAAN PENYIMPANAN POLA PADA RUANG RND (RESEARCH AND DEVELOPMENT) DI PT. CARTENZ INDONESIA DI KARANGANYAR, JAWA TENGAH Tina Puspitasari1; Rofiatun Nafiah
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 17 No 2 (2018): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

PT Cartenz Indonesia is a company that produces outdoor equipment, one of which is an outdoor bag. The process of making bags begins with making patterns, which will be used as a reference in making bag samples. In addition to pattern making, pattern storage can affect the length of the sample making process. Problems encountered at PT. Cartenz Indonesia in the form of an inefficient pattern storage arrangement. The purpose of this research is to identify problems and provide solutions for storing patterns in the research and development room. Data collection methods used were direct observation and documentation. The data were then analyzed and the problems solved by designing the pattern storage. The results of the research shows that there is time reduction until 21 minutes for finding the pattern

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