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All Journal Indonesian Journal of Geography SMARTek MEKTEK Rekayasa Mesin JURNAL AKUNTANSI, EKONOMI dan MANAJEMEN BISNIS Societa: Jurnal Ilmu-Ilmu Agribisnis Jurnal Pengabdian Masyarakat Borneo CENDEKIA : Jurnal Ilmu Pengetahuan Devotion: Journal of Research and Community Service Jurnal Tekstil: Jurnal Keilmuan dan Aplikasi Bidang Tekstil dan Manajemen lndustri Kohesi: Jurnal Sains dan Teknologi Jurnal Polimesin
Amar Amar
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Pengaruh Tetal Kain Mori terhadap Penyerapan Zat Warna pada Proses Pembuatan Motif Batik dengan Teknik Pencapan Rumiyati, Valentina Sri Pertiwi; Putranto, Adhy Prastyo Eko; Amar, Amar; Nazar, Yunus; Oktaviani, Bintan
Jurnal Tekstil Vol 6 No 2 (2023): Vol 6 No 2 Desember 2023
Publisher : Akademi Komunitas Industri Tekstil Dan Produk Tekstil Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59432/jute.v6i1.51

Abstract

Kain mori adalah kain tenun kapas yang memiliki anyaman polos, tetal rapat, sudah diputihkan dan tanpa atau diberi penyempurnaan kanji, digunakan untuk bahan batik. Kain mori yang tersedia di industri tidak sesuai dengan harapan khususnya dalam hal zat warna yang terserap pada kain. Penelitian  dilakukan untuk mengetahui pengaruh tetal kain mori terhadap  penyerapan zat  warna pada proses pembuatan motif batik cap dengan teknik pencapan. Penelitian menggunakan metode experiment, sampel kain diambil di Industri Kain Tenun DIY sebanyak tiga sampel   yaitu KM 125, KM 309, KM 2243. Masing-masing sampel diperlakukan sama yaitu kain mori diproses menjadi kain motif batik dengan teknik pencapan. Proses pencelupan dikerjakan dalam media air tanah,  menggunakan pewarna naftol 3 g/l, soda kostik (NaOH teknis dalam bentuk bubuk) 1,5 g/l dan garam naftol 9 g/l. Air yang dibutuhkan untuk proses pewarnaan 3,5 l/lembar kain mori dengan panjang 2,5 m lebar 1,20 m. Kain motif batik dengan teknik pencapan, diuji ketuaan warna dan tahan luntur zat warna terhadap pencucian sabun, dinilai dengan perubahan warna menggunakan grey scale, dan penodaan menggunakan staining scale, mengacu SNI-ISO-7211:2010. Hasil penelitian menunjukkan bahwa tetal kain yang berbeda berpengaruh terhadap penyerapan zat warna ke dalam kain motif batik dengan teknik pencapan, Semakin tinggi tetal kain, kerapatan semakin tinggi dan semakin banyak menyerap zat warna yang menjadikan warna kain semakin tua/gelap. Kain mori KM 309 dan KM 125 mempunyai warna sangat tua sedangkan KM 2243 mempunyai  warna tua. Tetal kain tidak berpengaruh terhadap ketahanan luntur zat warna terhadap pencucian.
Efisiensi pada Mesin Shuttle 75” SGA Tipe 1515 melalui Perbaikan Teropong Tidak Oper Amar, Amar; Rumiyati, Valentina Sri Pertiwi; Oktaviani, Bintan; Astutik, Rina Aprilia Puji
Jurnal Tekstil Vol 6 No 1 (2023): Vol 6 No 1 Juni 2023
Publisher : Akademi Komunitas Industri Tekstil Dan Produk Tekstil Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59432/jute.v6i1.56

Abstract

Penyebab dominan dari mesin tenun yang sering berhenti antara lain terjadinya kerusakan mesin, salah satu kerusakan pada bagian change berupa teropong yang tidak oper. Penelitian ini menggunakan metode observasi, dokumentasi dan wawancara. Hasil analisis ditemukan tiga faktor yang mempengaruhi teropong tidak oper yaitu, faktor manusia, faktor mesin, dan faktor metode. Faktor manusia disebabkan oleh mekanik kurang teliti dalam melakukan perbaikan yang menyebabkan mesin mengalami kerusakan berulang. Faktor mesin disebabkan oleh jarak cross spindle dengan cross spindle hook yang tidak sesuai akibat adanya getaran mesin.  Faktor metode disebabkan oleh penyetelan weft feeler yang kurang tepat sehingga mengakibatkan feeler tidak bisa mendeteksi benang. Cara mengatasi faktor yang menyebabkan teropong tidak oper adalah melakukan penyetelan ulang terhadap weft feeler dengan jarak antara feeler dan palet 1,5 mm, melakukan penyetelan ulang terhadap cross spindle dengan cross spindle hook dengan jarak 0,8 mm, serta melakukan pengarahan terhadap mekanik supaya lebih meningkatkan ketelitian ketika melakukan perbaikan atau pengecekan mesin. Hasil pengamatan di lapangan menunjukkan bahwa jumlah teropong yang tidak oper pada salah satu mesin shuttle sebanyak 29 kali selama 7 jam dan rata-rata efisiensi selama tiga shift atau sebesar 65%. Setelah dilakukan penanganan dan perbaikan, jumlah teropong yang tidak oper mengalami penurunan sebesar 79,31 % dengan jumlah 6 kali selama 7 jam, sedangkan efisiensi mesin mengalami kenaikan sebesar 13,33% dengan rata-rata efisiensi selama tiga shift yaitu 75%.
Analisis Benang Lusi Lengket di Mesin Sizing Karl Mayer pada Departemen Weaving V Amar, Amar; Prasetyo, Danu; Wulandari, Erna
Jurnal Tekstil Vol 2 No 1 (2019): Vol 2 No 1 Juli 2019
Publisher : Akademi Komunitas Industri Tekstil Dan Produk Tekstil Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pembuatan kain tenun terdapat flow process sebagai berikut; mulai dari order konsumen, penyediaan bahan baku, bahan baku masuk ke mesin warping, lalu diproses di sizing, setelah itu masuk proses reaching atau tying, lalu memasuki proses pertenunan, setelah menjadi kain, dibawa ke inspecting, folding, grading lalu packing, dan di kirim ke konsumen. Pada saat melaksanakan proses produksi, untuk mendapatkan kualitas yang baik diperlukan suatu perencanaan produksi, pengendalian produksi dan pemeliharaan mesin, serta pengendalian mutu pada raw material, proses produksi dan produk jadi. Dalam produksi kain tenun banyak faktor yang dapat mempengaruhi kualitas dan kuantitas produksi, salah satunya adalah permasalahan benang lusi lengket. Beberapa faktor penyebab benang lusi lengket diantaranya, faktor material; hasil hanian ada putus tidak disambung, faktor method; size pick up melebihi standar, faktor mesin; squeezing roll aus atau miring, panas temperatur cylinder kurang, sizebox kotor, faktor manusia; kurang kontrol, faktor lingkungan; mesin kotor.
The Influence of Product Quality and Promotion on Repurchase Intent, with Customer Satisfaction as the Mediating Variable: (A Study on Kemejaberkah.2nd Online Shop Consumers) Amar, Amar; Mochtoha, Himawan
Jurnal Akuntansi, Ekonomi dan Manajemen Bisnis Vol. 13 No. 1 (2025): Jurnal Akuntansi, Ekonomi dan Manajemen Bisnis - Juli 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaemb.v13i1.9889

Abstract

This study investigates the role of customer satisfaction as an intervening variable in analyzing the impact of product quality and marketing on repurchase intention among customers of Kemejaberkah.2nd online shop. A quantitative research method with a descriptive approach was employed. Data were collected through a questionnaire distributed to 115 individuals who had made at least three repeat purchases in 2023. Data analysis was conducted using Structural Equation Modeling–Partial Least Squares (SEM-PLS). The results revealed that both product quality and promotion have a positive and significant effect on customer satisfaction and repurchase intention. Moreover, customer satisfaction mediates the relationship between product quality and promotion with repurchase intention. These findings highlight the importance of developing strategies that improve product quality and marketing effectiveness to sustain customer satisfaction. By applying the right approach, businesses can enhance customer satisfaction and drive repeat purchases.
Adaptation Strategy And of Topo Da’a Remote Indigenous Communities Survivability to Climate Change in Their Settlement Environment (Case Study: Lekatu Da’a Topo Settlement in Central Sulawesi Province) Amar, Amar; Masiming, Zulfitriah; Butudoka, Zubair; Mulyati, Ahda
Devotion : Journal of Research and Community Service Vol. 5 No. 2 (2024): Devotion: Journal of Research and Community Service
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/devotion.v5i2.683

Abstract

Topo Da’a is one of sub-ethnic of Kaili tribe in Central Sulawesi, Indonesia. This Isolated Traditional Community or Komunitas Adat Terpencil (KAT) originally is nomadic people who live in Kamalisi mountain forest area. Generally, this society live in mountain area either in highland area, mountain slope, or lowland area. Topo Da’a Lekatu settlement is the only settlement of Topo Da’a that located in Palu city administrative region. This settlement is in lowland area that near from central area of Palu city. Aim of this study is to know how adaptation strategy and community survival ability against climate change environment around their living area from inside the mountain forest area with low temperature then live in lowland area the near the center of the city with high temperature. Qualitative method with phenomenological approach applied in this research. Data collection is purposive sampling with snowball sampling technique. Data analysis is inductive with three steps of selection or reduction, which are phenomenological reduction, eidetic reduction, and transcendental reduction. The research results found that the main factors of survival were economic factors and customs. Apart from that, the settlement location is close to schools and markets. Meanwhile, the adaptation strategy is to adjust to different climates, by creating relaxing or gathering space outside their house and sometimes they sleep in the farm that located on the mountain.
PENGARUH NOMOR BENANG PAKAN TERHADAP KEKUATAN FISIK KAIN DENIM RUMIYATI, V SRI PERTIWI; PUTRANTO, ADHY PRASTYO EKO; AMAR, AMAR; NAZAR, YUNUS; OKTAVIANI, BINTAN; ROSYADI , HEFNI
CENDEKIA: Jurnal Ilmu Pengetahuan Vol. 4 No. 2 (2024)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/cendekia.v4i2.2773

Abstract

The aim of this research is to determine the type of weft thread that can be used to make denim fabric according to SNI 0560:2008 in terms of its physical properties (tensile strength and tear strength). The research method that will be used is the experimental research method. The materials used for research are one type of warp thread OE 16, three types of weft thread namely OE 9, OE 11 and OE 13, each type of thread has a different tetal, namely 46, 50 and 54. Denim fabric is made using a Rapier machine. Picanol, 2/1 twill woven, carried out at the Solo AK Textile Workshop. The resulting denim fabric was tested for tensile strength in the warp & weft direction and tear strength in the warp & weft direction. The test results were evaluated and compared with the quality requirements for denim fabric according to SNI 0560:2008 and the influence of two factors, namely number and thread retention on physical strength, was analyzed using a simple factorian. Tensile and tear strength testing was carried out at the Yogyakarta Handicraft and Batik Industry Certification and Services Center. The results of the research show that the weft thread number has a significant effect on the tensile strength of denim woven fabric in the warp direction, that is, the greater the thread number, the higher the tensile strength in the warp direction, likewise the thread number has a significant effect on the tear strength in the weft direction, namely the greater the thread number, the lower the tear strength. towards the feed. Yarn number does not have a significant effect on the tensile strength of denim woven fabric in the weft direction and the tear strength of denim woven fabric in the warp direction. Tenum denim fabric products processed using OE 16 warp threads, OE 9, 11, 13 tetal 46, 50 and 54 warp threads meet the requirements of SNI 0560:2018 in terms of fabric weight, tensile strength and tear strength. ABSTRAKTujuan penelitian  adalah mengetahui jenis benang pakan yang dapat digunakan untuk membuat kain denim sesuai SNI 0560:2008 ditinjau dari sifat fisiknya (kekuatan tarik, dan kekuatan sobek). Metode penelitian yang akan digunakan  adalah metode penelitian eksperimen. Bahan yang digunakan untuk penelitian yaitu satu jenis benang lusi OE 16, tiga jenis benang pakan yaitu OE 9, OE 11, dan OE 13, masing-masing jenis benang mempunyai tetal yang berbeda yaitu 46, 50 dan 54. Kain denim dibuat menggunakan mesin Rapier Picanol, anyaman twill 2/1, dilaksanakan di Workshop  AK-Tekstil Solo. Kain denim yang dihasilkan dilakukan uji kekuatan tarik arah lusi dan pakan serta kekuatan sobek arah lusi dan pakan. Hasil uji dievaluasi dan dibandingkan dengan syarat mutu kain denim sesuai SNI 0560:2008 serta pengaruh dua factor yaitu nomor  dan tetal benang terhadap kekuatan fisik, dianalisis menggunakan factorial sederhana. Pengujian kekuatan tarik dan sobek dilaksanakan di Balai Besar Sertifikasi dan Pelayanan Jasa Industri Kerajinan Dan Batik Yogyakarta. Hasil penelitian menunjukkan bahwa nomor benang pakan berpengaruh signifikan terhadap kekuatan tarik kain tenun denim arah lusi yaitu semakin besar nomor benang semakin tinggi kekuatan tariknya ke arah lusi, demikian juga nomor benang berpengaruh signifikan terhadap kekuatan sobek arah pakan yaitu semakin besar nomor benang semakin rendah kekuatan sobeknya ke arah pakan. Nomor benang tidak berpengaruh signifikan terhadap kekuatan tarik kain tenun denim arah pakan dan kekuatan sobek kain tenun denim kearah lusi. Produk kain tenum denim yang diproses menggunakan benang lusi OE 16, benang pakan OE 9, 11, 13 tetal 46, 50, dan 54 memenuhi persyaratan SNI 0560:2018 ditinjau dari berat kain, kekuatan tarik dan kekuatan sobek.
OPTIMIZATIONS THE TENSILE-SHEAR STRENGTH OF TIG WELDING PARAMETERS FOR MILD STEEL AT DIFFERENT MATERIAL THICKNESSES Dwicahyo, Tegar; Basit, Arul; Amar, Amar; Sukarman, Sukarman; Khoirudin, Khoirudin; Suhara, Ade
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1486

Abstract

This article presents a study on optimizing Tungsten Inert Gas (TIG) welding on mild steel (SPCC-SD/JIS G3141) with varying thicknesses of 0.6 mm and 0.8 mm. Automobile bodies commonly utilize mild steel with a material thickness ranging from 0.6 to 0.98 mm. The objective of this study was to ascertain the upper limit of tensile-shear strength that can be achieved by utilizing the specific parameters utilized in TIG welding. This study utilizes a three-level experiment and incorporates three input variables in the Taguchi experimental optimization method. The advantage of this approach lies in its ability to yield comprehensive outcomes while minimizing expenses, as it can be adapted to the resources available. An additional benefit is that this approach can be implemented in a multitude of industrial situations.The study's input variables are welding current, argon gas flow rate, and electrode diameter. Utilizing a continuous flow of argon gas of 12 LPM (liter per minute), a welding current of 55 A, and an electrode diameter of 1.6 mm, the maximum mean T-S strength of 3457.13 N was achieved. The ANOVA revealed that the flow rate, welding current, and electrode diameter had a per cent contribution of 50.07%, 26.89%, and 23.04%. The flow rate was the parameter with the most significant impact on the influential variable. The welding current and the electrode diameter do not significantly affect the response. The findings indicate that by adjusting the parameters to the optimal level determined by the Taguchi method, the S-N ratio for T-S strength increases by 9.30%, and T-S strength increases by 12.42%. The findings of this study offer a thorough comprehension of enhancing the TIG welding approach and can be further refined by incorporating additional variables.
Enhancing TIG Welding Parameters For Direct Tensile Load (DT-load) On Various Steel Thicknesses Amar, Amar; Sukarman, Sukarman; Khoirudin, Khoirudin; Mulyadi, Dodi; Basit, Arul; Suhara, Ade; Shieddieque, Apang Djafar; Cahyo, Tegar Dwi
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4892

Abstract

The car body repair process is integral to vehicle development and structural repair. The primary objective of this study is to enhance the quality of thin material welding utilized in automobile body repair. The impetus for this research stems from the necessity to improve the structural integrity and longevity of thin materials prone to deformation throughout the welding procedure while minimizing distortion. This study aims to identify optimal parameters for the tungsten inert gas welding (TIG welding) process on thin materials, particularly for automobile body rearrangement. The Taguchi method conducted the experimental analysis of variations in welding parameters, including electrode diameter, gas flow rate, and welding current. Adjusting TIG welding parameters to their optimal values significantly improves weld joint direct tensile load (DT-load) and overall structural quality, according to the findings of this study. ANOVA analysis and the S-N ratio indicate that gas flow rate and welding current are significant determinants of the quality of welded joints in thin materials. This research contributes to a better understanding of the optimal parameters for fusing thin materials, particularly in automobile body repair. The automotive industry can use these findings as a guide to enhance the quality and strength of welding processes, which are critical to the structural integrity of vehicles.
Co-Authors Ahda Mulyati Andi Rusdin Arham, Andi Astutik, Rina Aprilia Puji Basit, Arul Butudoka, Zubair Cahyo, Tegar Dwi Clara Zenicha Lioni Dodi Mulyadi Dwicahyo, Tegar Himawan Mochtoha Iskandar, Sutarmo Khoirudin Khoirudin, Khoirudin Nazar, Yunus Oktaviani, Bintan Prasetyo, Danu Putranto, Adhy Prastyo Eko Rachmawati, Sitti Rahmat Kurniawan ROSYADI , HEFNI Rumiyati, Valentina Sri Pertiwi Shieddieque, Apang Djafar Suhara, Ade Sukarman Sukarman Tutang M. Kamaludin V Sri Pertiwi Rumiyati, V Sri Pertiwi Wulandari, Erna Yuli Asmi Rahman Zulfitriah Masiming