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  4. Why is continuous processing highly reproducible? An explanation of the mechanism that stabilizes distributed quality.
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  • Apr 15, 2026
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Apr 15, 2026

Why is continuous processing highly reproducible? An explanation of the mechanism that stabilizes distributed quality.

澁谷工業 澁谷工業
In dispersion processes, the variation in quality is one of the significant challenges. Even when processing under the same equipment and conditions, it is not uncommon for the dispersion state to differ from batch to batch. The main factor behind this is the variability in the dispersion history experienced by the particles. In batch processing, the shear and residence time experienced by each particle differ depending on their position and flow state within the tank. As a result, there is a mixture of sufficiently dispersed particles and undispersed particles, leading to variations in quality. This tendency becomes particularly pronounced under high viscosity or high solid content conditions. On the other hand, in continuous processing, particles pass through a consistent processing area, receiving nearly the same dispersion conditions. Because shear energy and residence time can be controlled consistently, the variability in dispersion history is minimized, resulting in a uniform and highly reproducible dispersion state. Moreover, continuous processing is advantageous during scale-up. By adjusting the flow rate, it becomes easier to replicate similar dispersion quality from the lab to mass production. This helps reduce the risk of quality fluctuations during the transition from development to mass production. What is crucial in dispersion processes is to provide the same processing history to all particles. Continuous processing easily meets this condition and is an effective method for stabilizing quality and ensuring reproducibility.
In continuous processing, the dispersion history for each particle is aligned, improving reproducibility.
In continuous processing, the dispersion history for each particle is aligned, improving reproducibility.
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The difference between inline distribution and batch distribution is here.
There is a significant difference in dispersion history and reproducibility between batch and inline processing. Inline continuous processing aligns the processing conditions for each particle, achieving stable dispersion quality with minimal lot-to-lot variation. For more details, please see here.

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Dispersion machine (solid-liquid mixing dispersion system) slurry dispersion line

Dispersion is not determined by the equipment. It is determined by the process design of the solid-liquid mixing dispersion system.

The occurrence of "agglomeration," "cohesion," and "viscosity increase" in dispersion processes is caused not by the equipment but by the design of the process. Poor wetting during powder input and unsuitable dispersion conditions lead to quality variations and poor redispersion, significantly compromising stability during mass production. Additionally, during scale-up, it is often impossible to reproduce the same conditions, resulting in unexpected troubles. Furthermore, every time there is a change in materials or formulations, new conditions must be established, increasing the burden of development and mass production. Shibuya Kogyo's solid-liquid mixing and dispersion system is designed to provide a consistent process from powder supply to dispersion, formulation, and CIP cleaning. By optimizing the entire process, including material properties, input conditions, and fluid design, we stabilize dispersion quality and reproducibility. Moreover, optimization across the entire line contributes to reducing losses between processes and lowering equipment load. It is not just a dispersion machine but a dispersion system that governs the entire process. By building quality from the design stage, we achieve shorter startup times and improved yields. We also provide consistent support from equipment selection to startup, reducing the burden on the site. We propose the optimal dispersion process tailored to your materials and process conditions. Please consult us about your current challenges. We support you from initial considerations to mass production startup.

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  • Dispersion/emulsification equipment/homogenizer
  • Emulsifying and dispersing machine

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High-Performance Plastics Exhibition - Invitation to Exhibit at Plastic Japan

From October 29 (Tuesday) to 31 (Thursday), 2024! We will be exhibiting small ultrasonic dispersion devices and ultrasonic generators!

We are pleased to hear that you are doing well. Thank you very much for your continued support. We are excited to announce that our company will be exhibiting at the "13th High-Performance Plastics Exhibition - Plastic Japan" (Makuhari Messe). We will be showcasing the following equipment at our booth, and we would be delighted if you could stop by despite your busy schedule. * Inline Continuous Powder-Liquid Mixing and Dispersion System * Tabletop Inline Dispersion Device * Small Ultrasonic Dispersion Device * Ultrasonic Generator These products utilize continuous mixing and dispersion technology, which dramatically improves production efficiency compared to traditional batch methods. All of our staff are looking forward to welcoming you to our booth. 【Event Information】 * Dates: October 29 (Tuesday) to October 31 (Thursday), 2024 10:00 AM to 6:00 PM (until 5:00 PM on the last day) * Booth Number: Hall 6, Booth Number 35-26 (Plastic Japan Area) * For more details about the exhibition, please refer to the related links. You can download the PDF for more information or feel free to contact us.

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  • Powder Supply Device
  • Dispersion/emulsification equipment/homogenizer

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Dispersion machine line: Powder supply - Continuous dispersion support

From powder supply to dispersion, defoaming, and transfer. A dispersion machine line compatible with high-viscosity slurries has been established.

We offer a solid-liquid mixing line that includes powder supply, dispersion, degassing, and transfer, centered around the disperser. In high solid content and high viscosity slurries, the powder supply conditions and instantaneous concentration fluctuations significantly affect dispersion quality. This system optimizes the entire process rather than just the disperser alone, achieving quality stabilization and productivity improvement. Additionally, by combining inline dispersers, batch dispersers, static mixers, etc., we can propose systems tailored to material characteristics and processing conditions. We accommodate a variety of slurry applications, including battery materials, CNTs, electronic materials, adhesives, inks, and food. We can provide consistent support from lab testing to scale-up and mass production line construction.

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  • Powder Supply Device
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Inline solid-liquid mixing dispersion system

Inline solid-liquid mixing dispersion system

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Please take a look at the technical document for the leak test, the "Technical Manual"!

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Fukuda Co., Ltd., which develops, manufactures, and sells leak testing equipment to inspect airtightness and sealing performance, provides a technical document that clearly explains the methods and theories of airtight testing, titled "Technical Manual." We are offering it as a PDF file. Please take this opportunity to download and view it!

Oct 30, 2026

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■■ Leak test for pouch containers such as packed rice! | MSQ-2003 series ■■ Packaging container air leak test device, pinhole inspection device, and full inspection device.

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The pinhole inspection for packaging engineering is fully automated, eliminating packaging defects based on certain quality standards. The judgment results and operational status can be managed via a monitor screen. - Quantitative management of quality standards for the pinhole inspection process - Ensuring the quality of the product's shelf life - Establishing evaluation criteria for the manufacturing process, achieving quantitative quality assurance - Slim and space-saving design that can be connected to existing production lines - Quick changeover for product variety switching can be handled in a short time by exchanging chambers - Fully domestically produced, allowing for rapid maintenance and troubleshooting - Example target works: pillow packaging, packaged rice (packaged cooked rice), etc. *Please consult us regarding the use of this product for pharmaceuticals.

Oct 30, 2026

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Fukuda's leak test, leak inspection, leak detection, leak test, integrity test.

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Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Oct 30, 2026

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Please let us know your concerns regarding leaks. We may have some suggestions for you. Leak tests, leakage tests, leak inspections, leak detection, container integrity tests, packaging integrity tests...

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Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Oct 30, 2026

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Fukuda's Technology Column

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This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.

Oct 30, 2026

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