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All Journal Jurnal Abadimas Adi Buana Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Journal of Applied Electrical Engineering Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)
Emmidia Djonaedi
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Public Health Social Sciences Other

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Analisis Perubahan Warna dalam Proses Pengeringan Tinta DYE dengan Menggunakan Lighfastness Chamber Heribertus Rudi Kusumantoro; Emmidia Djonaedi; Endang Yuniarti
Journal of Applied Electrical Engineering Vol 6 No 1 (2022): JAEE, June 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v6i1.4040

Abstract

Warna merupakan unsur penting dalam menghasilkan cetakan dengan kualitas yang baik, dimana warna harus baik dan stabil. Dalam usaha menjaga warna agar tidak terjadi penyimpangan selama proses cetak maupun setelah cetak, faktor pengeringan merupakan salah satu proses yang dalam prateknya terdapat faktor-faktor berpengaruh lainnya, seperti paparan sinar, suhu, dan kelembapan. Fokus penelitian ini adalah untuk menganalisis dan memperoleh invertal waktu maksimal dari tinta dye water-based pada cetakan dengan acuan vogra 3. Metode penelitian ini adalah kuantitatif komparasi, dimulai dari mencetak vogra 3 menggunakan mesin printer HP 2132, lalu pemendara cahaya menggunakan mesin Lighfastness Chamber, setelah itu pengukuran nilai L dan ΔE dengan alat ukur Spectrodense, dan terakhir dilakukan analisis. Menurut Afifa, 2021 pada penelitiannya mengenai lama paparan sinar terhadap cetakan menunjukan bahwa kandungan solid content berpengaruh terhadap nilai ΔE dan waktu paparan maksimal tinta yellow adalah 10 jam, sedangkan tinta black adalah 20 jam. Pada hasil penelitian ini didapatkan bahwa paparan sinar, suhu, dan kelembapan berpengaruh terhadap penyimpangan warna dan tinta A22 (Black) memiliki nilai ΔE paling kecil, diikuti A11 (Yellow), A6 (Magenta), dan diposisi terakhir A1 (Cyan)
PENDAMPINGAN PEMBUATAN KEMASAN PRIMER DAN SEKUNDER PADA UMKM DODOL BETAWI: PENDAMPINGAN PEMBUATAN KEMASAN PRIMER DAN SEKUNDER PADA UMKM DODOL BETAWI Rachmah Rachmah Nanda Kartika; Heribertus Kusumantoro; Emmidia Djonaedi
Jurnal Abadimas Adi Buana Vol 6 No 01 (2022): Jurnal Abadimas Adi Buana
Publisher : LPPM Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/abadimas.v6.i01.a4717

Abstract

Kemasan merupakan faktor penting dalam memenangkan persaingan usaha. Kemasan dan harga sangat berpengaruh positif dan signifikan terhadap keputusan pembelian. Meskipun kemasan produk sangat penting untuk mendongkrak penjualan, hanya sedikit terutama pelaku usaha mikro dan kecil yang memperhatikan kemasan produknya. Sebagian besar UMKM di Indonesia masih mengemas produknya dengan tampilan yang tidak menarik.. Hal ini juga terjadi pada kelompok usaha kecil dodol Betawi di Kota Depok dan sekitarnyaa. Sebagian besar pelaku usaha memiliki kendala pada packaging kemasan yang sederhana, bahkan tanpa merk. Dodol Betawi adalah produk makanan tradisional yang dibuat dari tepung beras ketan, santan, kelapa, dan gula memilik tekstur lembek dan lengket serta tingkat pembuatan yang rumit Dodol Betawi yang dihasilkan oleh UMKM umumnya tidak dapat disimpan dalam jangka waktu yang relatif lama. Dodol Betawi yang disimpan tanpa diberikan perlakuan dalam hal ini kemasan primer dan kemasan sekunder akan rusak dalam kurung waktu 20 hari, dan dapat menyebabkan terjadinya penurunan kualitas. Karena kondisi tersebut, dodol Betawi membutuhkan kemasan yang lebih baik dari sekedar kemasan plastik primer saja untuk menjaga tekstur, rasa, penampilan dan menambah nilai jual. Berdasarkan uraian diatas, pada pengabdian masyarakat ini ialah melakukan pendampingan pembuatan kemasan Primer dan Sekunder pada umkm Dodol Betawi. Peserta mendapatkan kuesioner pretest dan post-test sebelum diadakan pendampingan dan sesudah diadakan pendampingan menunjukkan hasil 66 % (Pretest) dan mengalami peningkatan menjadi 83 % (post test) mengetahui proses pembuatan kemasan primer dan kemasan sekunder.
Embroidery Training as an Effort to Improve Economic Independence of the Elderly in Small and Medium Enterprises Named “OBAT HATI” Emmidia Djonaedi; Putra Pratama, Yoga; Nanda Kartika, Rachmah; Endang Yuniatri; HB Rudi Kusumantoro; Khalyla Hafsa
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 8 No. 1 (2025): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v8i1.5929

Abstract

Computerized embroidery sewing is an innovation that's relatively easy to learn and produces embroidered objects on fabric quickly and in a marketable way. This machine is ideal for seniors who still want to be productive and increase their income in their later years without having to spend too much time and effort learning to use it. Consequently, a community of seniors around Kranggan, Bekasi, who were interested in computerized embroidery sewing training was chosen. Before the training, participants were given a questionnaire to assess their prior knowledge of computerized embroidery techniques on fabric. It turned out that almost all participants had never used such a machine. As a result, during the training, when they gained new knowledge about using the embroidery machine, they were very enthusiastic about practicing and even suggested having more training sessions in the future to enhance their skills in embroidering prayer cloths and bags
Pengaruh Paparan Sinar UV terhadap Ketahanan Warna Hasil Cetak DTF pada Kain Cotton 30s dan Spandek Rayon Nabila Dwi Julyanti; Emmidia Djonaedi; Rachmah Nanda Kartika
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5486

Abstract

Color fastness in Direct to Film (DTF) digital screen printing is influenced by various external factors, one of which is exposure to ultraviolet (UV) light. This study aims to evaluate the impact of UV light on the color stability of DTF prints on two types of fabric, namely 30s cotton and spandex rayon. A quantitative approach was used in this study, involving color difference testing (ΔE), washing simulations, and UV exposure. Based on the analysis results, cotton 30s demonstrated superior color fastness performance compared to spandex rayon, as indicated by lower ΔE values after UV exposure and washing processes. Conversely, spandex rayon experienced more drastic color changes, especially after being washed with bleach detergent. These findings emphasize that the selection of fabric materials and washing methods are critical factors.
Analisis Pengaruh Jarak dan Kondisi Pencahayaan terhadap Alat Deteksi Warna dengan Sensor TCS3200 Berbasis Arduino Muhammad Ferdiyansyah; Yoga Putra Pratama; Emmidia Djonaedi
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5556

Abstract

The TCS3200 color sensor demonstrates limited accuracy under certain environmental conditions, particularly in relation to the distance between the sensor and the object, as well as the surrounding lighting. This study aims to investigate the effects of distance variation (0 cm, 2 cm, 4 cm, and 6 cm) and lighting conditions (bright and dark) on color detection using the TCS3200 sensor integrated with an Arduino microcontroller. An experimental method was employed, with color data converted into the CIELAB color space and analyzed using Delta E as the deviation indicator. The results indicate that the most accurate color readings occur at a distance of 0 cm, where the sensor receives maximum reflected light. Furthermore, measurements taken under dark conditions exhibit more consistent results compared to those under bright lighting, which tends to introduce optical interference. It can be concluded that the TCS3200 sensor performs best at close range and under controlled lighting conditions to ensure accurate and reliable color detection.
Pengaruh Penambahan TiO₂ terhadap Kemampuan Distribusi Warna Cetakan pada Kertas Komposit Berbasis Ampas Tebu Fitri Kusuma Dewi; Emmidia Djonaedi; Rachmah Nanda Kartika
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5561

Abstract

The processing of natural fibers as raw materials for paper has grown over the past few years. However, the use of composite paper as a printing substrate has several drawbacks. One of them is the low color reproduction quality of printed images on paper made from natural fibers, caused by the insufficient whiteness of the paper. This study aims to investigate the effect of titanium dioxide (TiO₂) addition on the color reproduction quality of composite paper based on sugarcane bagasse fiber. TiO₂ was varied at concentrations of 0%, 10%, and 20%. Printing process was carried out using an inkjet printer with standard CMYK and RGB color patches. After that, the printed results were measured using colorimeter with D65 illuminant. Color distribution analysis was processed using MATLAB software. The results showed that the addition of TiO₂ increased the whiteness of the paper, as indicated by the higher L* values. The color gamut visualization demonstrated that the gamut area expanded as the TiO₂ content increased. This result shows that the addition of TiO₂ affects the color reproduction quality of composite paper.
Pengembangan Desain Edukatif pada Buku Tabungan Anak dengan Pendekatan Quality Function Deployment Aisyah Fitria; Zulkarnain Zulkarnain; Emmidia Djonaedi
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5567

Abstract

The 2024 National Financial Literacy and Inclusion Survey shows that many Indonesians still do not understand financial fundamentals. This condition contributes to difficulty in managing personal finances. Therefore, financial education from an early age is needed to help people develop healthy financial habits. One effective medium for delivering financial education is a children’s savings book. However, most available savings books are less attractive and do not align with children’s preferences. This study aims to develop a children’s savings book design by integrating educational elements, such as a temporary money storage, based on users’ preferences. The Quality Function Deployment (QFD) approach was used to translate customer needs into product visualization. Data were collected through expert discussion, interviews, and questionnaires distributed using purposive sampling. The results show that the highest-priority feature for further development is the temporary money storage integrated into the book’s cover. This element was then incorporated into the children’s savings book design, while considering both functional and educational aspects.
Studi Proses Produksi Tinta Gravure Violet dengan Parameter Capaian Warna Ghaitsa Zahira Adni Shaffa; Emmidia Djonaedi; Rachmah Nanda Kartika
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5572

Abstract

The production process is a crucial aspect in ink formulation, especially violet spot color inks for gravure printing applications, which cannot be accurately reproduced through conventional process printing systems (CMYK). This research aims to optimize the production parameters of violet gravure inks that often exhibit color instability due to delays in the grinding and adjusting stages. The main focus of this research is to analyze the effect of variations in grinding duration, post-grinding aging time, and the amount of raw material on ink color yield, which is evaluated based on density, CIE Lab*, and ΔE parameters. The methodology used was a descriptive experiment on a laboratory scale. The results showed that the optimal treatment combination of grinding for 90 minutes, aging for 48 hours, and the use of 400 grams of material (P3K2L4) produced the highest density value (1.858) and ΔE (0.572), indicating color stability despite quantity variations. This finding indicates that optimization of grinding and aging time contributes to the improvement of pigment dispersion homogeneity and thermal stability of the resin, even without direct measurement of the transition glass temperature (Tg) value.
Pengaruh Konsentrasi NaOH terhadap Kadar Air Kertas Berbahan Dasar Daun Mahkota Nanas Aulia Firdaus Syazidan; Emmidia Djonaedi; Rachmah Nanda Kartika
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5624

Abstract

Agricultural waste such as pineapple crown leaves (Ananas comosus) has not been optimally utilized, despite its high cellulose fiber content, making it a potential alternative raw material for paper production. One of the main challenges in this process is controlling the paper's moisture content, as excessive water content can reduce product quality. This study aims to investigate the effect of sodium hydroxide (NaOH) concentration on the moisture content of paper made from pineapple crown leaf fibers. Three NaOH concentrations (2%, 8%, and 14%) were applied during the pulping process to remove lignin and hemicellulose, followed by gravimetric analysis of the resulting paper’s moisture content. The results showed that the 8% NaOH treatment produced the lowest moisture content of 8.35%, while the 2% NaOH treatment resulted in the highest moisture content of 10.34%. One-way ANOVA indicated that variations in NaOH concentration had a statistically significant effect on moisture content (p < 0.001). The findings revealed a non-linear relationship between NaOH concentration and moisture content, with 8% being the optimal point. A lower concentration resulted in dense fiber structures that retained water, while a higher concentration led to the formation of cellulose II, which is more hygroscopic. This study highlights the importance of optimizing NaOH concentration in paper production from agricultural waste to achieve the best quality.
Co-Authors Aisyah Fitria Aulia Firdaus Syazidan Endang Yuniarti Endang Yuniatri Fitri Kusuma Dewi Ghaitsa Zahira Adni Shaffa HB Rudi Kusumantoro Heribertus Kusumantoro Heribertus Rudi Kusumantoro Khalyla Hafsa Muhammad Ferdiyansyah Nabila Dwi Julyanti Nanda Kartika, Rachmah Putra Pratama, Yoga Rachmah Nanda Kartika Rachmah Rachmah Nanda Kartika Yoga Putra Pratama Zulkarnain Zulkarnain