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  3. 澁谷工業
  4. Why does dispersion not become uniform? An explanation of the causes of aggregation residuals and distribution variability, as well as design points to achieve uniform dispersion.
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  • Apr 14, 2026
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Apr 14, 2026

Why does dispersion not become uniform? An explanation of the causes of aggregation residuals and distribution variability, as well as design points to achieve uniform dispersion.

澁谷工業 澁谷工業
In dispersion engineering, there are many cases where, although the appearance seems mixed, the particles are not actually uniformly dispersed. One of the causes of this is that the aggregation between particles has not been sufficiently resolved. When there is insufficient dispersion energy, the particles do not break down to primary particles, and aggregates remain. Additionally, if the shear conditions or flow state are uneven, the dispersion state can vary locally, resulting in variations in particle size distribution. This is particularly true in high-viscosity systems or high solid content slurries, where low flowability makes it difficult for energy to be transmitted uniformly, leading to dispersion inconsistencies. Furthermore, in batch processing, variations in mixing uniformity and residence time tend to make it difficult to maintain a uniform dispersion state throughout the process. To achieve uniform dispersion, it is important to design dispersion energy according to particle characteristics and to maintain uniform flow conditions in the process design. By maintaining consistent shear conditions, as in inline continuous processing, it is possible to achieve a uniform dispersion state and reproducible quality. The order of input, the wettability of the powder, and the initial mixing state of the dispersion also have a significant impact on uniformity. In particular, if local clumps or uneven distribution occur during powder input, it becomes difficult to resolve them in subsequent dispersion processes, leading to dispersion inconsistencies.
Image of the occurrence of flow unevenness and dispersion inhomogeneity in batch mixing.
Image of the occurrence of flow unevenness and dispersion inhomogeneity in batch mixing.
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Here are the design and process engineering for achieving uniform distribution.
To achieve uniform dispersion, it is important not only to consider dispersion energy and shear conditions but also to focus on the flow state and the overall design of the process. Our company offers process engineering that includes optimizing dispersion conditions according to particle characteristics and ensuring reproducibility during scale-up, centered around inline continuous processing. We will introduce specific design points to achieve uniform and stable dispersion quality.

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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.

  • Emulsifier/Disperser
  • Powder Supply Device
  • Dispersion/emulsification equipment/homogenizer

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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.

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

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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.

  • Emulsifier/Disperser
  • Powder Supply Device
  • Dispersion/emulsification equipment/homogenizer

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Inline solid-liquid mixing dispersion system

Inline solid-liquid mixing dispersion system

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Understanding occupancy in meeting rooms and private rooms without using cameras | Introducing MotionCatch's applications for offices | You can also download product materials and comparison charts.

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We would like to introduce MotionCatch as a monitoring sensor that can be used to understand office occupancy. Using millimeter-wave radar and AI, it non-contactly detects human movement and occupancy status. Since it does not use a camera and does not record images, it can be considered for installation in places where cameras are difficult to place, such as conference rooms, private rooms, and work areas. 【Suitable for the following situations】 - Understanding whether conference rooms are actually in use - Monitoring occupancy and absence in private rooms and work areas - Checking if absences are prolonged It can be installed on walls or ceilings and has a design that easily blends into existing spaces. Product materials and a comparison table of monitoring sensors can be downloaded from the related catalog below. We also welcome inquiries regarding the conditions for rooms where installation is possible and the number of units, so please feel free to contact us.

Sep 14, 2026

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Hyper CLT flooring panel

Reasons for Being Chosen for Public Works | NETIS Registered "Hyper CLT Paving Slab"

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One of the major strengths of the Hyper CLT sheet is that it is a technology registered with the Ministry of Land, Infrastructure, Transport and Tourism's NETIS. The NETIS registration number is **"TH-250021-A."** In public works, it is important to explain to the client "why we are introducing it" and "what effects we expect" when adopting new materials. If it is a NETIS registered technology, it becomes easier to connect it to proposals for the utilization of new technologies and creative ideas. The Hyper CLT sheet is a civil engineering sheet that utilizes wood CLT. It is lightweight and easy to install and remove, and it has characteristics unique to wood, such as reducing summer heat reflection and noise, and fixing CO2. It is important to be able to propose it not just as "wooden sheets," but as a civil engineering technology registered with NETIS. The Hyper CLT sheet, which combines wood, NETIS, civil engineering, and CLT, is a new temporary material that makes it easier to clearly demonstrate the reasons for its introduction in public works.

Sep 14, 2026

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Metal Crack Repair: MS Method for Repairing Cracks and Fractures in Machinery Equipment

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Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding repair methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Sep 14, 2026

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Hyper CLT flooring panel

There are many places that can be considered as alternatives to steel plates | Hyper CLT flooring.

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The applications of Hyper CLT sheets are not limited to specific locations. Essentially, many civil engineering sites that have previously used steel plates are candidates for consideration. Wood CLT can be utilized in various places such as temporary roads, access routes, heavy machinery work yards, material yards, storage areas, temporary parking lots, and worker pathways. Of course, there are cases where steel plates are more suitable depending on site conditions, such as in areas with heavy loads or where heavy machinery needs to turn. The important thing is not to replace everything, but to use them appropriately according to the ground conditions, machinery, and intended use. Hyper CLT sheets are lightweight, easy to install and remove, and have unique characteristics of wood, such as reducing glare and metallic sounds, and fixing CO2. Furthermore, it is a **registered technology with the Ministry of Land, Infrastructure, Transport and Tourism NETIS "TH-250021-A."** By utilizing wood, NETIS, civil engineering, and CLT, it provides a new option for places that have previously used steel plates.

Sep 13, 2026

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We will be exhibiting at the 29th Design and Manufacturing Solutions Expo (Osaka).

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Event Date: October 7 (Wednesday) to October 9 (Friday), 2026 Time: 10:00 AM to 5:00 PM Venue: Intex Osaka Our company will be exhibiting at the 29th Monozukuri World Design and Manufacturing Solutions Exhibition, which will be held at Intex Osaka from October 7 (Wednesday) to October 9 (Friday), 2026. At the venue, we will showcase the upgraded "ReMacs Hybrid," as well as the eagerly awaited production management system for the precast concrete industry, "ReMacs TypePca," which will be unveiled for the first time following its release at the end of May! We will also display various solutions, including the newly equipped "AI Drawing Search System" with OCR functionality! We sincerely look forward to your visit.

Sep 12, 2026

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