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Jl. Prof. Dr. Wirdjono Prodjodikoro, Glugo, Panggungharjo, Sewon, Bantul, D.I.Yogyakarta
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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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ERGONOMIC SEWING WORKSTATION DESIGN FOR BETTER PRODUCTION PROCESSES IN THE BAG INDUSTRY Mochammad Charis Hidayahtullah; Galuh Puspita Sari
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 23 No 1 (2024): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Yogyakarta is one of the province's industrial centers producing bags which are quite well-known in Indonesia. As one of the provinces with a rapidly growing creative industry in Indonesia, the industry sample taken in this study is a bag production house called Difa Bag in Bantul Yogyakarta, which produces bags made of leather, canvas, and polyester materials. This research aims to observe and analyze field conditions in bag production and produce a workstation design that is ergonomy for workers in the sewing processes. Research using qualitative methods in the form of field observations obtained data that the height in the sitting position, hand reach, knee height in the sitting position, and natural sitting height obtained data that is not by proper ergonomic standards. The absence of a backrest in a sitting position also results in a hunched back for a longer time. Sewing work activities that lack ergonomics and are carried out repeatedly affect the performance of workers so that they tire quicker which causes a less-than-optimal quality and quantity of bag production. This more ergonomic sewing workstation design concept can provide comfort, safety and increase worker productivity in the bag industry in Indonesia.
LIMIT OF DETECTION (LOD) AND LIMIT OF QUANTITATION (LOQ) OF DR 1900 SPECTROPHOTOMETER FOR DYES ANALYSIS Wijayanti; Siti Rochmah
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 23 No 1 (2024): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Dyes is not easily degraded in the environment. It can be causing environmental pollution. The concentration of these dyes must be monitored when using it in a process. The most common method to measuring dye’s concentration is spectrometry, such as using dr 1900 spectrophotometer. There for, it necessary to know the limit of detection (lod) and limit of quantitation (loq) of the spectrophotometer. This study aims to determine the ability of the dr 1900 spectrophotometer to analyze ay-25 by determining the lod dan loq values. The results showed that the lod value was 0.01871 mg/l and the loq was 0.02308 mg/l. This means that dr 1900 spectrophotometer is capable pf providing a response for the analysis of ay-25 dye with a minimum analyte amount of 0.01871 mg/l, and if the measurement f ay-25 dye using the dr 1900 spectrophotometer show a value of 0.02308 mg/l or higher, then the mausrement results are considered to have a good accuracy and precision.
OPTIMIZATION OF CONDITION FOR METHYLEN BLUE ADSORPTION USING ACTIVATED COMMERCIAL ZEOLITE Wijayanti
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 23 No 1 (2024): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Dye is the one of the industrial waste which is not degraded easily in the environment. Methylen blue is a dye that is often used in industries and can be an environmental pollution. Adsorption is used in this research to solve the problem. This study used an activated commercial zeolite. The adsorption conditions were optimized based on adsorbent mass, contact time, and the initial concentration of adsorbate. The results showed that the optimum condition was using 3 grams of adsorbents with contact time of 60 minutes and initial concentration of adsorbate not more than 125 mg/L. This adsorption followed pseudo-second order kinetic model and Freundlich isoterm model.
PERFORMANCE EFFECTIVENESS OF WOOJIN 170 T AND LS 170 T INJECTION MOLDING MACHINES IN 1.14 INCH HOLDER PRODUCTION: ANALYSIS OF OVERALL EQUIPMENT EFFECTIVENESS (OEE) AT PT. XYZ Wisnu Pambudi; Dewi Kumala
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 23 No 1 (2024): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

The challenges with Woojin 170 T and LS 170 T injection molding machines manifest in a decline in effectiveness, adversely impacting the final product. This research aims to measure the effectiveness of both machines using the Overall Equipment Effectiveness (OEE) method. Measurement results reveal that the LS 170 T injection machine achieved the highest OEE, reaching 89.3%, in the first week, with an average OEE value of 84.5%. In contrast, the Woojin 170 T injection machine only achieved 83.5% in the fourth week, falling below the 85% standard, with an average OEE value of 69.2%. The OEE value of the Woojin 170 T injection machine is significantly lower than that of the LS 170 T, indicating substantial inadequacy, far below the established standards. Factors influencing machine effectiveness are identified in two key aspects: equipment failure at a percentage of 66.9% and reduce speed at a percentage of 21.5%. The causes of the low effectiveness of the Woojin 170 T injection machine are attributed to factors involving machine, method, material, and environmental aspects.

Page 18 of 18 | Total Record : 174

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