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All Journal Semesta Teknika JMM (Jurnal Masyarakat Mandiri) Jurnal Teknologi Hasil Peternakan Sewagati Jurnal Teknologi Kimia Mineral Journal of Energy, Materials, & Manufacturing Technology Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Fadzkurisma Robbika
Program Studi Teknologi Pengolahan Kulit, Politeknik ATK Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Veterinary Other

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THE EFFECT OF ANIONIC OIL ON THE SOFTENING PROCESS OF OLD STOCK UPHOLSTERY LEATHER USING PADDING METHOD Fadzkurisma Robbika; Nais Pinta Adetya; Sofwan Siddiq Abdullah; Atiqa Rahmawati; Heru Budi Susanto
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: 10.58533/8fwmew18

Abstract

Location and mechanism of leather storage that is not ideal can cause changes in the character of the old stock leather. One of the effects that is often found when storing finished leather is reducing skin softness. The conventional method of increasing leather softness of old stock is through a mechanical staking process. Staking will only be effective in softening the leather if the leather has enough oil content, if it doesn't have enough oil content it will potentially cause cracks in the grain. In this study, control leather (K) was only given mechanical treatment. Meanwhile, for treatment leather (T), the mechanical process is carried out before and after adding mayonnaise oil using a rubbing method on the flesh to maximize the oil lubrication effect on old stock leather. The use of anionic oil, mayonnaise oil, which is applied to the flesh of the skin using the wiping method on T skin, produces a higher difference in the increase in softness, namely 0.5 mm, when compared to K leather which only undergoes a mechanical process (staking and toggling), namely 0.3 mm. This shows that the addition of mayonnaise oil and emulsifier to the flesh is able to re-lubricate the leather fibers thereby increasing skin laxity.
HE USE OF CROSS LINKER IN UPHOLSTERY LEATHER FINISHING COATING Putri Endah Kurnia; Laili Rachmawati; Dina Mariana Uli Lubis; Sofwan Siddiq Abdullah; Fadzkurisma Robbika
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/es0t0273

Abstract

Leather upholstery must have good rub resistance, adhesion, and flexing resistance to be able for a long time. This study aims to determine the correct amount of cross linker use to obtain the good rub resistance, adhesion, and flexing resistance upholstery of the leather upholstery finishing coat. Crust leather, adhesive solvent, diluent solvent, penetrator, medium light polyurethane, light polyurethane, aliphatic polyurethane, cross linker, spray gun, flex meter, rubbing fastness tester, and grey scale are used as material. Upholstery leather finishing consist of base, medium and top coat. The method is addition of 2, 3, and 4% cross linker from the total of top coat composition. The result of wet rubbing resistance test are very faded (value=1) when using 2% cross linker, medium faded (value=3) when using 3% cross linker, very no faded (value=5) when using 4% cross linker. The dry rubbing resistance of each treatment showed no difference. Adhesion value (≤12.0 N) and flexing resistance (no crack) for all treatment met the requirement. It can be concluded that the use of a cross linker of 4% in the top coat finishing produces the best test value.
PENAMBAHAN DISPERSING AGENT PADA PROSES PASCA TANNING UNTUK MENGURANGI KADAR COD             (Chemical Oxygen Demand) Sofwan Siddiq Abdullah; Renita Wahyu Meydasari; Swatika Juhana; Fadzkurisma Robbika
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 24 No. 2 (2025): 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/sbnkd059

Abstract

In the leather tanning industry, post-tanning process generates liquid waste. One of the parameters of liquid waste is Chemical Oxygen Demand (COD). The chemicals used in the post-tanning process have an impact on COD levels of the wastewater. The purpose of this study is to investigate the addition of a dispersing agent during the post-tanning stage to reduce the Chemical Oxygen Demand (COD) content in the process effluent. Based on the stages of post-tanning, the fatliquoring fixation process contains a large amount of organic substances, which is indicated by the high COD value. The higher the COD, the lower the dissolved oxygen content in water. Elevated COD levels can have adverse impacts on the environment. The method used in this study was a trial involving the addition of a dispersing agent during the post-tanning process. COD measurements were carried out using a UV-Vis spectrophotometer. The addition of 10% dispersing agent reduced COD levels from 62,200 mg/L to 56,550 mg/L (reduction of 9.08%). The results of the experiment demonstrate that the addition of a dispersing agent in the post-tanning process can reduce the wastewater treatment load in the leather tanning industry.
Nano-fatliquoring agent berbasis minyak sawit untuk industri penyamakan kulit: Review Study Atiqa Rahmawati; Heru Budi Susanto; Fadzkurisma Robbika; Baskoro Ajie; Erlita Pramitaningrum
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 25 No. 1 (2026): 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/g0gr5w98

Abstract

The leather tanning industry is currently transforming toward sustainability through the application of nanotechnology. The fatliquoring process is a crucial stage for providing softness and mechanical strength to leather. Palm oil has great potential as a raw material for fatliquoring agents due to its abundant availability and favorable fatty acid composition. This review discusses the development of palm oil-based nano-fatliquoring agents, which covers fabrication techniques via chemical modifications (such as the use of organosilicon), sonochemical (ultrasonic) physical methods, and the stability of Pickering emulsions. Characterization is emphasized on the analysis of droplet size, zeta potential, and leather fiber morphology using SEM/TEM. The advantage of nanotechnology lies in the deeper penetration of droplets into collagen fibers, which not only enhances mechanical properties but also provides additional functions such as UV resistance and antimicrobial activity. Overall, the utilization of palm oil by-products like deodorizer distillate (DD) in a nano-emulsion offers strong future viability for cleaner production in the global leather industry.
Co-Authors Abdullah, Sofwan Siddiq Ajie, Baskoro AMALIA, DIAN NUR Angger Bagus Prasetiyo Asfan, Muhammad Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati Baskoro Ajie Baskoro Ajie Dina Mariana Uli Lubis Dwi Wulandari Emiliana Anggriyani Erlita Pramitaningrum Fauzi Ashari Fauziah, Qori Nur G. K. Suryaman Heru Budi Susanto, Heru Budi Heru Susanto Ikbal Rizky Putra Kuntoro Laili Rachmawati Laili Rahmawati Mario Sariski Dwi E Muhammad Luqman Bukhori Mustafidah Udkhiyati Naimah Putri Nais Pinta Adetya Nurwantoro Prasetyo Hermawan Putra, Brian Teo Putra, Ikbal Rizki Putri Endah Kurnia R. Lukas Martindro Satrio Ari Wibowo Ragil Yuliatmo Rahmawati, Atiqa Renita Wahyu Meydasari RLMS Ari Wibowo Romario A. Wicaksono Swatika Juhana Thoyib Rohman Hakim Ukhdiyati, Mustafidah Wahyu Fajar Winata Yuafni