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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/10.58533/8esa3597
Core Subject :
Berkala Penelitian Teknologi Kulit, Sepatu dan produk Kulit is a peer-reviewed, open-access journal that publishes original research articles, review articles, as well as short communication in all areas of basic and applied chemistry. Berkala Penelitian Teknologi Kulit, Sepatu dan produk Kulit covers the following topics. Arts Chemical Engineering, Chemistry and Bioengineering Engineering Industrial and Manufacturing Engineering Social Science The submitted manuscript should have relevance with Arts, Chemical Engineering, Chemistry and Bioengineering, Industrial and Manufacturing Engineering, and Social Science.
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Articles 85 Documents
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LABORATORY SCALE OF RAYON FIBER MANUFACTURING: MANUAL STIRRING AND STIRRING USING A MAGNETIC STIRRER Dewi Nurhidayati; Warmiati; Wijayanti
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/kjmm1s79

Abstract

Laboratory scale production of rayon fiber has been carried out using manual stirring and a magnetic stirrer. The aim of this research is to compare rayon fiers produced through manual stirring and magnetic stirrer stirring. Experiments on making rayon on a laboratory scale are carried out for educational purposes which often have obstacles due to the limited availability of mixing equipment, such as magnetic stirrer. The method used in making rayon in this research is through the formation of cuprammonium ions. The results show that there is no significant difference between rayon produced manual stirring and magnetic stirrer stirring. It means that the manual mixing can be applied in the learning process for making rayon due in order to get around the limitations of available mixing equipments.
ENGINERING HOPPER DRYER BUFFER TOOL AT THE PLASTIC WORKSHOP OF POLYTECHNIC ATK YOGYAKARTA Muhammad Ikhwan; Diana Yuliastuti
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/reyr4s76

Abstract

Plastic Laboratory is one of laboratory at ATK Polytechnic Yogyakarta. Plastic Workshop has several machines including hopper dryer machines that cannot be functioned because of the absence of supporting devices. The design of this hopper dryer support device aims to help the process of operating the hopper dryer that has been in the plastic workshop. This buffer tool is designed according to needs by taking into account the ergonomic value of the machine and plastic workshop room. The design of the Hopper Dryer buffer consists of a Hopper Dryer holder table and a plastic ore transport funnel. In this study, in order to achieve the results of the hopper dryer support device design as expected, several stages or design steps were prepared starting from determining the list of needs, determining concepts, designing components, making detailed technical drawings, materials used, making products and trials. From the analysis of the use of the hopper dryer buffer tool made, it can be concluded that with this buffer device, the hopper dryer that initially could not be functioned can finally be operated properly so that it can help the drying process of plastic ore to be processed on the Blow Molding machine. From the trials carried out with the maximum load, the hopper dryer capacity is safe to use so that if each production process only uses 1/4 of the maximum capacity, the resulting load voltage of 1029 N is still very safe to use.
THE APPLICATION OF ARTIFICIAL INTELLIGENCE FOR DESIGNING BATIK MOTIF Eka Legya Frannita; Anwar Hidayat; Wawan Budi Setyawan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/pbjqxv39

Abstract

Artificial intelligence was a popular technology that was successfully utilized in several fields including of fashion industry. Recently, several research communities have been done in employing artificial intelligence for increasing the productivity. This research work aims to create batik pattern using artificial intelligence which was conducted in three major processes. The three processes were brainstorming process, designing process, and validation. Brainstorming process aimed to determine the restriction of this research work. Designing process focused on the utilization of artificial intelligence for creating batik pattern. In this process, we used online illustration maker based artificial intelligence. Validation process aimed to evaluate the originality of result. According to evaluation process using Google Lens, it can be concluded that the resulted design was original in which there is another batik patterns that similar to our result.
THE DEVELOPMENT OF SENTIMENT ANALYSIS APPROACH FOR IDENTIFYING CUSTOMER INTEREST IN LEATHER BAG Eka Legya Frannita; Anwar Hidayat; Wawan Budi Setyawan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/kea1td34

Abstract

Analyzing user interest has become one of the most popular research topics since identifying the user satisfaction played the essential role to prevent the company profit. This research work aimed to apply sentiment analysis approach for identifying the user interest in leather bag. This research was extremely beneficial to determine the satisfaction of leather bag customers. This research work was done by employing four stages. In the first process, we conducted brainstorming process for determining the exclusion and inclusion of research. In the next process, we collected the data by conducting crawling process from social media review. After collecting the data, we conducted data analysis process by labelling each review into three labels, which were positive sentiment, neutral sentiment and negative sentiment. In the last process, we visualized the result and we summarized the result. The visualization process illustrated that positive sentiment achieved percentage of 28%, neutral sentiment achieved percentage of 69% and negative sentiment achieved percentage of 3%. This result indicates that markets are neutral or not interest enough in leather bag. The analysis process also concluded that News obtained the highest total mentions indicating that Batik is not regularly mention in popular social media. According to those results, innovation or creativity about Batik is should be regularly generated in order to increase the market interest.
CONCEPT OF CLEANER PRODUCTION APPROACH AND ZERO LIQUID DISCHARGE SYSTEM IN THE TANNERY INDUSTY Atiqa Rahmawati
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/gbxwh535

Abstract

Tanning industry is one of the industries that produces tannery waste water (TWW) which is dangerous to the environment. About 250 kg leather generating 15,000-50,000 of waste water. This increase environmental concerns regarding TWW. In this review, discussed the concept cleaner production (CP) approach at each process stage in the tannery process and the Zero liquid discharge (ZLD) system used in processing tannery liquid waste. The application of CP in the leather tanning industry is by substituting chemicals with environmentally friendly materials, management water, optimizing tanning conditions, and using technology to recycle and reuse liquid waste. The application of the ZLD system is one of the CP approach for recycle and reuse TWW. The ZLD system used in leather tanning is the Thermal-based ZLD system and Reverse Osmosis. Several countries have implemented the ZLD system, are the United States, India, China, European Union countries and Middle East. The ZLD system is an important TWW strategy to be implemented globally, although operating costs and high energy consumption are limitations in its application. Technological advances and exploration of new approaches to overcome the limitations of ZLD technology may make the approach more feasible and sustainable in the future.
MOISTURE CONTENT MEASUREMENT IN GELATIN: A COMPARISON OF GRAVIMETRIC METHODS USING MOISTURE ANALYZER AND OVEN Warmiati; Dewi Nurhidayati
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/061s5z77

Abstract

The measurement of water content in gelatin samples in the practical activities in the Instrumentation and Polymer Engineering Laboratory is conducted using the gravimetric method with the Moisture Analyzer Sartorius Type MA 45. Meanwhile, the method acknowledged and approved by AOAC International is the Oven method. This research aims to compare the measurement results of the Moisture Analyzer with the reference method, namely the Oven method referring to AOAC, to determine if there is a statistically significant difference in the results. The results of both methods are compared using a paired T-test, yielding a calculated T-value (Tstat) of 0.7519 and a tabulated T-value of 2.2622. These results indicate that Tstat ≤ the tabulated T-value at a 95% confidence level, thus accepting the null hypothesis (H0). This suggests that μa=μb, meaning that there is no significant difference between the two methods. The precision test results for both methods also meet the criteria, with %RSD ≤ 2% and %RSD ≤ 2/3 CV Horwitz.
ANALYSIS OF METAL CONTENTS IN WELL WATERAT THE ATK YOGYAKARTA POLYTECHNIC LABORATORY Warmiati; Wijayanti; Armila Zahra Tawarniate; Dewi Nurhidayati
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/5wrznv09

Abstract

This sudy has been conducted to determine the metal content in water used for laboratory activities at Politeknik` ATK Yogyakarta. The water used for laboratory processes should ideally be free from metal content to avoid contamination and corrosion. The metal content analyzed in this research includes Cu, Pb, Cr, adn Fe. The analysis method used is spectrophotometry, specifically Atomic Absoprtion Spectrophotometry (AAS), using standard series. The samples to be analyzed are first destructed according to the method outlined in SNI 6989 – 84: 2019. The analysis results obtained are as follows: Cu content in water sample is 0.046 mg/L, Pb content is 3.031 mg/L, Cr metal is 0.023 mg/L, and Fe content is 6.372 mg/L.
EFFECT OF USING TiO2 IN DYEING PROCESS TO LIQUID WASTE AND CHARACTERIZATION GLOVE LEATHER Arya Prastyawan; Laili Rachmawati; Heru Budi Susanto
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/4dp6ce74

Abstract

This study aims to reduce the use of kronos (content of TiO2 ³92,5%) to overcome the problem of dyeing liquid waste turbidity at PT Adi Satria Abadi, Yogyakarta. In this study, the characteristics of glove leather resulting from reducing the number of kronos. Post tanning process in wet blue sheepskin consist of: wetting back, dyeing, retanning, fatliquoring, fixing I, top fatliquoring, dan fixing II. The study is carried out in the dyeing process and divided into 3 treatments. Treatment I used 1.5% kronos, treatment II used 1% kronos, and the control used 2% kronos. The turbidity of the liquid waste from the dyeing process, the organoleptic and physical characteristics of glove leather were tested. The organoleptic test results for skin characteristics obtained from treatment I were compared with the control: evenness of color (very suitable), color match (suitable), defect covering (very suitable), and softness (very suitable). Meanwhile, the results obtained from treatment II were compared with the control: color evenness (very suitable), color match (quite suitable), defect covering (not suitable), and softness (very suitable). The results of physical tests on skin thickness and softness between control, treatment I and treatment II showed results that met the standards. The skin rubbing test result in treatments I and II was better than the control. The turbidity of dyeing waste shows that treatment I produces lower turbidity than treatment II, while treatment II shows a lower level of waste turbidity than the control. It was concluded that treatment I produced waste with lower turbidity than the control and produced glove leather characteristics that met PT Adi Satria Abadi standards.
FOLTIC METHODE TO IMPROVING THE PERFORMANCE OF VEGETABLE SKIN Tutik Maryati
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 2 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/81jczz64

Abstract

This article explains the foltik method for improving the performance of vegetable skin. This is important in order to increase knowledge of developing one's own creativity. Through the foltic technique of folding and giving color to vegetable leather, it will improve the appearance of vegetable leather, cover skin defects with color and add unique value to vegetable leather. Folding vegetable skin by emphasizing artistic value when applying color will be the key to the success of the foltic method. Articles are not carried out by research but are approached and reviewed by journals, both national and international. The appearance of vegetable leather with a natural, plain color, with minimal defects can be changed and the appearance of the leather can be enhanced to become colored leather with a combination of dyestuff colors. Various color patterns according to the folding of the skin will add unique value, artistry, creativity to a technician in increasing the selling value of vegetable leather by improving the appearance of vegetable leather which is liked by consumers.
THE EFFECT OF DIFFERENT PRETANNING INGREDIENTS ON QUALITY OF THE SKIN OF TILAPIA FISH(OREOCHROMIS NILOTICUS) TANNED OF GAMBIER (UNCARIA GAMBIER) Heru Susanto; Swatika Juhana; Fadzkurisma Robbika; Fauzi Ashari; Wahyu Fajar Winata
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 2 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/y2sngz53

Abstract

Tanning of tilapia fish skin (Oreochromis niloticus) has been carried out using a variety of pretanning materials such as aluminum, chrome, glutaraldehyde, syntan with gambier (Uncaria gambier) as the main tanning agent. The research aims to determine the effect of pretanning ingredients on the physical and chemical quality of the skin tilapia fish of gambir so that the best formulation can be obtained. The process of tanning tilapia skin is carried out conventionally from salt-cured tilapia skin processed by BHO to the pikling process, pretanning with a variety of pretanning materials chrome, aluminum, glutaraldehyde and SB sodatan at 4% each, followed by main tanning with gambier various (25% 30%, 35%), post tanning, and finishing. The results of the skin quality test of tilapia fish tanned gambier with the best formula, namely code L with SB 4% sodatan pretanning with 35% gambier. This optimum formula produces a shrinkage temperature of 70 oC, higher tensile strength, sewing strength and burst resistance, the highest bound tannin content is 30.87%, and the degree of tanning is 69.18%.

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