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Sainteks: Jurnal Sain dan Teknik
Published by Universitas Insan Cendekia Mandiri
ISSN : -     EISSN : 26858304     DOI : https://doi.org/10.37577/sainteks.v5i2
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Sainteks is a scientific journal that publishes research papers encompassing all aspects of natural sciences, technology and engineering. This journal is published 2 (two) times a year (March and September) by the Faculty of Engineering UICM d/h UNBAR. The fields covered by the Sainteks Journal include: - Chemical Engineering - Textile Chemical Technology - Industrial Engineering - Science - Textile Industry Technology - Environment
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 161 Documents
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Characterization of Activated Carbon from Fabric Waste Activated by NaOH and NaCl AS, Prawira David; Luciana, Luciana; Utami Susanto, Mutiara Putri
Sainteks: Jurnal Sain dan Teknik Vol 6 No 2 (2024): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v6i02.822

Abstract

Abstract: There is a lot of waste on earth in the form of textile waste in the form of fabrics either from textile waste fabrics produced by convection or from used clothing. This study aims to utilize the textile waste fabric as raw material for making activated carbon. To determine the content of activated carbon from textile fabric waste, it would be better if the fabric is grouped according to its classification whether it includes fibers derived from cellulose fabrics or synthetic fabrics. This test is done by combustion test, dissolution test and microscope test. To calculate the content of activated carbon produced by using NaOH and NaCl activator substances of various concentrations of 8%, 10%, and 12% for 24 hours. Carbonization process temperature 480 ˚C for 5 minutes. Activated carbon analysis calculates: water value, ash value, iodine number analysis, volatile matter value, fixed carbon, and SEM test. The results of the research of activated carbon that meets the qualification standards of SNI activated carbon 06-3730-1995 are water value and ash value, while the value of iodine number, volatile matter, and fixed carbon has not met the standards.
Study of Downstream Analysis of Strategic Investment in Petroleum Commodities In Increasing the Value of Indonesian Petroleum Products Bhagya, Tombak Gapura; Yasmadi, Bambang; Yulianti, Dini; Prakarsa, Graha; Anggraito, Hendry
Sainteks: Jurnal Sain dan Teknik Vol 6 No 2 (2024): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v6i02.825

Abstract

The government is currently trying to increase the added value of product, especially products whose raw material come from within the country. One way to increase added value is by downstreaming commodities. Petroleum is one of the commodities that will be downstream from the upstream to downstream sector. There is limited petroleum in Indonesia, so it needs to be utilized as best as possible. So that the added value of petroleum can be returned with greater value. From the results of the study, there are five industrial sectors that can be developed by government to downstream petroleum commodities, namely liquid parafin, phenol, cumene, caprolacton and polycarbonate
Design of Halal Traceability System Model for Rectangular Veil Products at PT. X and PT. Y Wardiani, Gina Rahayu
Sainteks: Jurnal Sain dan Teknik Vol 6 No 2 (2024): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v6i02.826

Abstract

Based on the mandate of Law Number 33 of 2014 concerning guarantees for halal products, that all products circulating in the market including goods used or utilized by the public must be halal, one of which is textile and clothing products. Currently, not many textile and clothing products are halal-certified. Whereas textile and clothing products have great potential to develop their business in supporting the strengthening of the value chain in the halal industry. Halal traceability is one of the halal requirements that must be met in the manufacture of halal products, this is stated in the Halal Product Guarantee (JPH) HAS 23000. Halal traceability is also an important factor in maintaining halal integrity. There are various methods used in developing a halal traceability system. One of them is the IDEF0 method. The IDEF0 method can be used in determining plans to capture traceability information needed by internals. In addition, IDEF0's simple notation construction consisting of input, control, output, mechanism (ICOM) becomes the main strength as a communication tool that is easily understood by everyone. Therefore, this study develops a model of a halal traceability system based on critical activities that can change the halal status of a product with the IDEF0 method in the Small Medium Enterprises (SMEs) of Muslim women's clothing. Based on the results of the study, there are six critical activities that affect the halal status of products during the production process, namely, material purchasing activities, material receiving and storage activities, supply to production activities, production activities, finished product storage activities, and outgoing transportation activities.
Analysis of factors influencing the performance of the ammonia converter at plant IIB of PT Pupuk Sriwidjaja Nurisman, Enggal; Effendi, Yunita; Septiani, Nadila
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.701

Abstract

The Ammonia converter is the primary equipment in an ammonia plant in PT Pupuk Sriwidjaja IIB where the conversion process of hydrogen and nitrogen into ammonia takes place. During this process, various constraints often arise such as changes in temperature, pressure, and the H2/N2 ratio, which can result in decreased performance and impact the conversion of the produced products. Performance evaluation of the ammonia converter is conducted to determine the condition and main factors affecting the ammonia conversion on the ammonia converter by collecting conversion data, H2/N2 ratio, temperature, and pressure. Based on the evaluation results from the data of September-November 2023, it was found that the actual average conversion of ammonia is better than the design, amounting to 20.43%. The highest conversion of ammonia is at a temperature of 399.25°C and pressure of 152.18 kg/cm2, while the lowest conversion is at a temperature of 402.17°C and pressure of 150.52 kg/cm2. Furthermore, based on statistical tests using multiple linear regression method, there are two main factors influencing the conversion of ammonia, namely temperature and pressure, while the H2/N2 ratio does not significantly affect the conversion of ammonia due to its fluctuating nature.
Comparison of the Two Bath Two Stage Dyeing Method with One Bath Two Stage on Energy Efficiency in Dyeing Polyester-Cotton Fabric (80% - 20%) Using Dispersion-Reactive Dyes Kurniawan, Kurniawan; Tantowi, Tantowi
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.789

Abstract

The efficiency of the dyeing process is widely used by the textile industry today to reduce production costs while maintaining the quality of the products produced. The dyeing process carried out for polyester-cotton blend fabrics (80% -20%) generally uses a two bath two stage dyeing method using disperse-reactive dyes. This dyeing process results in the dyeing process taking longer and using a lot of resources such as energy and water. In the one bath two stage method the process is faster because only one dyeing solution is used to dye the polyester-cotton at the same time with two fixation stages. Experiments were carried out on polyester-cotton fabric (80%-20%) using a disperse dye (Coralene Blue 2RL) – reactive (Corazol Brill Blue RN). The color maturity value (K/S) for fabric resulting from the two bath two stage dyeing method is 1.1138 while the one bath two stage method reaches 1.1116. The standard deviation value (evenness of color) of fabric resulting from the two bath two stage dyeing method is 0.08 while the one bath two stage method is 0.05. Color fastness to washing and rubbing using the two bath two stage method and the one bath two stage method both have good fastness.. Based on the economic aspect, the one bath two stage method provides savings in terms of dyeing time of up to 17.64% and water usage savings of up to 50% compared to the two bath two stage method. However, the total cost of the two bath two stage dyeing method has a lower total cost, namely IDR IDR 839,223.47. Meanwhile, the one bath two stage method has a total cost of IDR 875,183.25. This cost is for dyeing 500m of fabric weighing 112.14 kg. The total cost per kilogram of fabric for the two bath two stage method is IDR 7,483.71 and one bath two stage IDR 7,804.38 with a difference of IDR 320.67.
Study of Physical-Chemical Characteristic in Dyeing with Teak Leaf Extract: The Role of Post-Mordant and Alkaline Solution Cahyaningtyas, Hilmi Amanah Aditya; Vera, Ade; Mulyani, Rr Wiwiek Eka
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.797

Abstract

Teak leaf extract has potential as a natural dye for dyeing textile materials because it contains many natural pigments. The exhaust method was used to dye cotton woven fabric with teak leaf extract at 40 oC in an alkaline solution (pH 10). The dyed fabric then proceeded to the postmordant process with a comparison of alum and ferrosulfate variations. Evaluation of physical and chemical characteristics was carried out by testing color fastness and evenness, color space, and color fastness to washing and rubbing. According to the results, ferrosulfate mordant provided the highest values for color fastness and evenness (K/S 1.4805 and SD 0.0055) in comparison to alum (K/S values of 0.2857 and SD 0.0077). Alum mordant created a color space of a* +5.36 and b* +3.75, while ferrosulphate mordant produced a* +0.55 and b* +7.86. Both mordants received good ratings (4-5) for color fastness to washing. Alum had a good color fastness rating (4-5) while ferrosulfate received a rating of (4).
Weaving Production Monitoring System in Shuttleless Picanol Machine Hananto, Agus; Wahidin, Didin; Zulfahmi, Muhammad; Oktavian, Dinan Safta
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.829

Abstract

The development of the textile industry, especially the weaving industry, has been progressing, including quality performance, capacity expansion and production efficiency. One of the technological advances that has not been widely embedded in weaving production machinery is the technology related to the application of Industry 4.0, which has the main objectives of increasing production efficiency, reducing waste, and lowering production costs. In general, production equipment/machines in the textile industry, especially in the production of woven fabrics on shuttleless picanol machines, do not yet have a control system that can be used to build intelligence in the application of Industry 4.0. To be intelligent, these production machines need to be equipped with data processing modules, a series of sensors, and data processing systems. The development is carried out in stages, one of which is the monitoring system. Production monitoring was chosen because in the woven fabric manufacturing industry, production control and monitoring is a very important part of increasing production capacity and production efficiency, and supporting the application of Industry 4.0. This research focuses on designing and manufacturing a monitoring system for the production of woven fabrics, especially Picanol shuttleless weaving machines, which provides information services in the form of monitoring data on the amount of production, condition/status of machine operation, and consumption of electrical energy, displayed in graphical form (dashboard) in real time and can be accessed via a localhost network using a PC computer or smartphone web browser.
The Implementation Of Statistical Process Control (SPC) Method On Carton Box Production Rahmawati, Ayu Nova; Shalshabilla, Asyiffa Ananda
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.838

Abstract

Due to the era of high industry growth, the packaging industry in Indonesia has to raise the quality of its goods. PT Kartonindo Mega Jaya, a corrugated cardboard supplier company, needs to maintain the quality of their products to ensure that the quality standards are met. The SPC (Statistical process control) method is implemented to control product quality and reduce defect rates. This study uses the SPC method with the attribute control map (p-chart) technique because the data used are the number of product defect products with a non-constant sample size. There are four main problems, namely inappropriate product size (34.5%), skewed image printing (21.8%), imperfect product shape (25%) and uneven coloring (18.7%) with a total of 3,913 units of product defects. The results showed that the quality of cardboard box products at PT Kartonindo Mega Jaya could not be controlled statistically, the control chart showed that there were only 17 data within the control limits, which indicated that quality control was not consistently implemented. The types of deffect and their causes are examined using the Cause Effect Diagram approach.. Based on the observations, the factors that influence the above problems are human factors, machines, methods, environment and materials used.
Material Inventory Planning Through Continuous Review System and Periodic Review System Methods Bawono, Digdo; Winarno, Winarno
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.843

Abstract

PT Binder Indonesia is a company that operates and focuses on the manufacturing industry. This company is a supplier of pipe supports and suspension equipment used in various types of industries. Some of the products produced by PT Binder Indonesia include HD PUF Cryogenic Pipe Support, Clamp 2-Bolt Pipe Support, and Clamp 3-Bolt Pipe Support, all of which are pipe products. In producing its products, PT Binder Indonesia certainly requires several types of materials used. One of the materials used is Carbon Steel PLA36.00.10MM. In the production process carried out, there was a problem that occurred in the form of a lack of availability of raw materials Carbon Steel PLA36.00.10MM. As a result, the company cannot meet consumer demand because of this. Therefore, the purpose of this study is to plan the supply of raw materials for PT Binder Indonesia, especially for Carbon Steel PLA36.00.10MM material. The method in this study is through the Continuous Review System (P) and Periodic Review System (Q) to plan the company's raw material inventory. The results of the study showed that the calculation using the Q Method obtained a total cost of Rp. 3,948,822,013. The calculation results using the P Method obtained a total cost of Rp. 3,948,901,550. This shows that the Q Method is able to provide a smaller total cost result when compared to the P Method.
The Evaluation of mental workload using the NASA task load index (NASA-TLX) method on production department employees Iman, Nurul; Firmansyah, Nunung Agus; Himayati, Ade Ima
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.858

Abstract

Human resources are assets and priorities for the company, production activities cannot be carried out optimally and significant losses can occur. From human or employee activities can cause workload, although the level of workload on employees will be different. PT. XYZ is a company engaged in manufacturing the production of bathroom doors from galvanized steel. Production workers often feel the workload, it is complained about by the decline in performance and productivity of work in meeting the company's targets and demands. One of these factors is mental burden that exceeds capacity, thus having an impact on mental health or stress. The purpose of the study was to determine the level of mental workload by measuring and analyzing using the NASA Task Load Index (NASA-TLX) method. The NASA-TLX method is a measurement of mental workload with six indicators, namely Physical Demand, Mental Demand, Temporal Demand, Performance, Effrot, and Frustration. Of the 35 samples of workers in the production unit at PT. XYZ obtained an average score of 85 indicating the "Very High" category with the highest indicators being Effort and Physical Demand. This is influenced by the lack of ergonomic factors of a comfortable and safe work environment system.

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