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UV Lamps: Everything you wanted to know about

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Ir. Sugeng Endarsiwi (Printing Ink Manufacture)   In order to find out more about UV and how it works, I went to an expert who has been working with UV technology for over 20 years, Norm Fitton, President of Anniversary UV. Most printers buy UV systems, which may be supplied by the manufacturer of the equipment but made by someone else. Understanding how UV lamps work can improve their performance and save you money. There are different types of UV lamps for different applications. Low-pressure UV lamps may be used for disinfecting purposes, curing nails and dental fillings, or water purification. The type of lamp used in printing applications is usually a medium-pressure, linear (straight tubes), mercury vapor arc lamp. Medium-pressure UV lamps cure inks and coatings instantly. It is a photochemical, not a heat process. It allows the equipment to run at very high speeds for extended periods. General-use light bulbs have a filament. The electricity causes the filament to glow, prod...
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TRIZ: Problem-solving, Analysis, and Forecasting tool

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  Ir. Sugeng Endarsiwi ( ST., EMBA., IPM., ASEAN Eng., ACPE. )  TRIZ:   Problem-solving, Analysis, and Forecasting tool TRIZ (pronounced “trees”) is a problem-solving, analysis, and forecasting tool derived from the study of patterns of invention in the global patent literature. Its purpose is to systematically foster innovation and creativity , especially in engineering and technical fields. 1. Purpose of TRIZ: Solve complex problems creatively TRIZ helps users overcome technical contradictions and challenges by applying inventive principles. Accelerate innovation It provides structured methods to generate breakthrough ideas without relying solely on brainstorming or trial-and-error. Identify and eliminate contradictions TRIZ focuses on resolving contradictions (e.g., improving strength without increasing weight) which are often at the heart of technical problems. Reuse proven solutions It draws from a database of thousands of patents and innovations to identify pattern...
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Site Acceptance Test (SAT): Acceptance Criteria, Environmental Conditions & Commissioning Readiness

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  Ir. Sugeng Endarsiwi / Printing Ink Manufacture Site Acceptance Tests (SAT)  rigorously verifies that installed systems meet defined acceptance criteria, including functional, performance, and safety benchmarks, under precise environmental conditions like temperature and humidity. This careful testing confirms operational readiness and integration within actual facility environments, preventing issues during commissioning. By controlling and monitoring these conditions meticulously, the LotusWorks team ensure systems perform reliably in real-world scenarios. Exploring our approach further reveals how we guarantee seamless commissioning and system integrity. What is a Site Acceptance Test (SAT) and Why It Matters A Site Acceptance Test (SAT) verifies that installed systems perform according to specifications under actual environmental conditions before full operation begins. Commissioning plays a crucial role in coordinating these tests to ensure reliability and compliance a...
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Raman spectroscopy

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  Ir. Sugeng Endarsiwi ( Printing Ink Manufacturer ) What is Raman spectroscopy? Raman spectroscopy is a chemical analysis technique which involves illuminating a substance with a laser and analyzing the light that is scattered off the surface of the substance. The scattered light can provide a lot of information about the substance and its structure, and can be used to identify, characterize, and quantify many chemical components.  Light scattering explained When light is scattered off a sample there are two possible outcomes: (1) Elastic scattering , also known as Rayleigh scattering, occurs when the scattered light has the same energy as the light that initially struck the sample. This means that the elastically scattered light will be the same frequency, wavelength, and color as the original beam of light. (2)  Inelastic scattering, or  Raman scattering , occurs when the scattered light has a different energy than the light that initially struck the sample. This ...
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Life Cycle Management (LCM) Pabrik tinta cetak dan industri percetakan

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Ir. Sugeng Endarsiwi  (ST., EMBA., IPM., ASEAN Eng., ACPE) Life Cycle Management (LCM)  dalam industri  percetakan  dan  pabrik tinta cetak  adalah pendekatan sistematis untuk mengelola seluruh siklus hidup produk — mulai dari perencanaan, produksi, penggunaan, hingga daur ulang atau pembuangan — dengan tujuan meningkatkan efisiensi, kualitas, keberlanjutan, dan kepatuhan terhadap regulasi. Figure 1.  Life cycle of the Printing manufacturing process. 1. Di Industri Pabrik Tinta Cetak Tahapan Life Cycle Management: R&D dan Formulasi Tinta Pengembangan formula tinta sesuai kebutuhan cetak (offset, gravure, intaglio, dll). Uji performa dan stabilitas tinta. Produksi Pengadaan bahan baku (resin, pelarut, pigmen). Proses pencampuran dan pengemasan. Distribusi Pengiriman ke pelanggan (percetakan). Penyimpanan sesuai standar keamanan bahan kimia. Penggunaan Tinta digunakan dalam proses cetak. Evaluasi performa di mesin cetak. Pasca-penggunaan Penanganan l...
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Perbandingan pajak kendaraan bermotor konvensional, hybrid, dan listrik (EV) di Indonesia tahun 2025

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  Ir. Sugeng Endarsiwi
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SISTEM MANAJEMEN PENGOLAHAN AIR: WEBINAR INST. TEKNOLOGI INDONESIA (ITI)

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  Ir. Sugeng Endarsiwi Sistem manajemen pengolahan air di Indonesia merupakan kombinasi antara kebijakan pemerintah, teknologi pengolahan, dan peran masyarakat dalam menjaga keberlanjutan sumber daya air. Berikut penjelasan lengkapnya: 💧 1. Struktur Pengelolaan Air di Indonesia Pemerintah Pusat dan Daerah : Kementerian PUPR melalui Ditjen Sumber Daya Air bertanggung jawab atas kebijakan nasional, sementara PDAM (Perusahaan Daerah Air Minum) mengelola distribusi air bersih di tingkat daerah. Badan Pengelola Wilayah Sungai (BWS) : Mengelola sumber daya air lintas wilayah administratif. Peran Swasta dan Masyarakat : Dalam beberapa daerah, swasta terlibat dalam pengolahan air limbah dan penyediaan air minum. 🏭 2. Proses Pengolahan Air Bersih Pengambilan Air Baku : Dari sungai, danau, atau air tanah. Koagulasi dan Flokulasi : Menambahkan bahan kimia untuk mengikat partikel kotoran. Sedimentasi : Partikel berat mengendap di dasar. Filtrasi : Air disaring melalui pasir ata...
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