日建塗装工業 Product Lineup

Thermo Pro Release is a high-durability, high-release fluororesin coating originally developed by Nikken Coating Industry. It demonstrates excellent release properties and durability even in high-temperature environments above 200°C, preventing resin adhesion and thread pulling during thermal welding and thermal riveting processes. With our unique evaluation technology, we can propose the optimal coating specifications tailored to the customer's usage environment (temperature range, type of resin, etc.). It also excels in abrasion resistance and adhesion, lasting longer than conventional fluororesin coatings. This reduces the effort required for mold cleaning and maintenance, contributing to improved production efficiency and reduced maintenance costs!

Heat sealing (heat plate sealing) is a joining method where the parts of plastic components that need to be bonded are brought into contact with a high-temperature metal plate (heat plate) to temporarily melt the plastic surface, and then pressed together at the melted areas to integrate them. Some plastic pallets made of PP resin (polypropylene resin) are manufactured by integrating the upper and lower parts through heat sealing. The heat plates used in the heat sealing process of these plastic pallets are coated with fluororesin to utilize its property of being "non-stick," which helps prevent melted PP resin from adhering to the surface of the heat plate. However, over time, the fluororesin coating on the heat plate can become scratched or peel off, causing the resin to gradually start sticking. When resin adheres to the surface of the heat plate, the following problems can occur: - The resin is stretched from the adhered areas, compromising the appearance of the product. - Burnt resin that has stuck can mix into the joint area, leading to a decrease in the strength of the joint. - The need to replace the heat plate temporarily halts the production line, resulting in decreased productivity.

PTFE (polytetrafluoroethylene) is a fluoropolymer with extremely low surface energy and excellent slip properties, widely utilized as a non-stick coating that takes advantage of its "non-adhesive" characteristics. It is effective in improving issues such as adhesion, sticking, and clogging in food processing machinery, resin molding processes, and conveying equipment. Notably, it maintains stable release properties even with highly adhesive materials or in high-temperature environments, contributing to increased productivity and reduced defect rates. Our company offers PTFE coatings that optimize film thickness and substrate treatment according to application and usage environment, achieving both durability and non-adhesiveness. We can also accommodate custom specifications tailored to on-site challenges.

PTFE is a fluoropolymer with one of the top-class low friction coefficients among solid materials, making it very effective in reducing friction in sliding parts and conveying components. By reducing friction resistance, it helps to suppress wear and seizure of parts, contributing to the longevity of equipment and reducing maintenance frequency. Additionally, it has an anti-adhesion effect, allowing for stable conveying even in processes that handle powders and sticky materials. Our company designs optimal PTFE coating specifications according to usage conditions and counterpart materials, providing surface modifications that balance practicality and durability.

In the label printing process, issues such as adhesive attachment to the receiving part leading to transport failures and positional misalignment are significant factors contributing to reduced yield. This is especially true for labels with high adhesive strength, where conventional fluororesin coatings or plating treatments often do not provide sufficient effectiveness, and cases of recurrence after a certain period are not uncommon. An effective solution to these challenges is our "NonStick Coating." Based on silicone release technology, our unique non-stick coating significantly suppresses the adhesion of label adhesives. Furthermore, by reducing the contact area through the fine structure of the surface, it demonstrates excellent release properties even against strongly adhesive materials. This results in direct improvements in stabilizing label transport, reducing cleaning frequency, and lowering the risk of equipment downtime. It is increasingly being adopted in many workplaces as a countermeasure against adhesive troubles in the label printing process.

One of the most troublesome challenges in the label printing process is "adhesive residue." Particularly with labels that have strong adhesive properties, glue tends to accumulate on the receiving part, leading to transport issues and misalignment. Traditional fluoropolymer coatings may perform well initially, but they tend to lose effectiveness over time. Our NonStick Coating utilizes the excellent release properties of silicone to fundamentally suppress adhesive residue. Additionally, the release components are supplied from within the coating film, maintaining performance over an extended period. This achieves sustained non-stick properties against adhesives. It is an effective solution that supports stable operations in environments struggling with label adhesive residue.

The adhesive that adheres to the label receiving part accumulates over time, leading to increased cleaning work and equipment downtime. Routine cleaning tasks not only increase the workload but also result in decreased production efficiency. NonStick Coating forms a surface that makes it difficult for the adhesive to "stick" and "remain," thereby suppressing the accumulation of dirt. As a result, it significantly reduces cleaning frequency and contributes to improved equipment operating rates. This coating is ideal for sites that want to achieve stable production while reducing maintenance burdens.

Fluoropolymer coatings, widely used as a solution for adhesion problems, may not always be effective against high-adhesion label adhesives. There are also many cases where the adhesive accumulates over time, leading to recurring issues. NonStick Coating utilizes the non-miscibility of silicone to create a surface that is less prone to adhesive attachment. By further optimizing the surface structure, it reduces the contact area and demonstrates non-stick performance that surpasses conventional coatings. It serves as an effective option for challenges that could not be improved with existing measures.

Many of the equipment stoppages in the label printing process are caused by adhesive sticking to the receiving section, leading to transport failures. Even slight adhesion can cause misalignment and blockages, resulting in line stoppages. NonStick Coating fundamentally eliminates the source of trouble by suppressing the adhesion of label adhesive itself. It enhances transport stability and contributes to the realization of a "non-stopping line." It is an effective means for improving equipment reliability in environments that prioritize stable operation.

Biceram" is a hybrid high-performance ceramic coating that combines a strong ceramic framework primarily composed of silica (SiO2) with an excellent non-stick silicone release agent, achieved through the application of the sol-gel method (liquid phase process). Since it is a "liquid application and baking" process, it can coat complex three-dimensional shapes and fine uneven surfaces with a uniform film thickness. ■ Extremely high film hardness Conventional fluororesin coatings (with hardness ranging from F to about 2H) are soft and prone to scratching. In contrast, Biceram boasts a high film hardness with a pencil scratch hardness of [9H]. It is resistant to scratches even in harsh environments where metal scrapers, spatulas, and workpieces frequently come into contact, allowing it to maintain its initial coating performance for an extended period. We propose it as a new option to address on-site challenges such as "fluororesin is too soft and gets scraped off quickly" and "release failures caused by scratches.

Amid the tightening global regulations on per- and polyfluoroalkyl substances (PFAS), there is an urgent need to explore "fluoropolymer alternative technologies" in manufacturing. ■ Ceramic Coating "Biceram" This is a surface treatment technology that is completely free of organic fluorinated compounds [PFAS-free]. It complies with Japan's "Food Sanitation Act (Ministry of Health, Labour and Welfare Notification No. 370)" standards, making it safe and secure for use in parts and molds of manufacturing machinery that come into direct contact with food, as well as cooking utensils. ■ Composition of the Coating The technology is based on the "sol-gel method," which produces a dense ceramic solid from a liquid. By incorporating a silicone release agent that exhibits non-stick properties at the molecular level within a robust three-dimensional silica network, we achieved excellent initial release properties and scratch resistance that significantly surpasses that of fluoropolymers, reaching a pencil hardness of 9H. This is ideal for those who want to evaluate alternatives in anticipation of future regulatory tightening and are looking for a safe, scratch-resistant release coating.

Conventional ceramic coatings (such as thermal spraying and CVD/PVD) typically involve large-scale processes that require high-temperature plasma or vacuum equipment, which limits the shapes and substrates that can be coated. ■ Formation of Ceramic Coating Films by Sol-Gel Method Our "Biceram" utilizes the "Sol-Gel method," which is a liquid-phase process that involves applying a liquid (starting material) and then curing it. - A strong coating is formed at a lower temperature (200–250°C) than the usual ceramic sintering temperature, minimizing thermal impact on the substrate. - Due to the liquid process, it can coat complex three-dimensional shapes, fine irregularities, and the inner surfaces of pipes. - The coating itself has a hybrid structure that incorporates silicone release agents within a three-dimensional network of silica (SiO2). In addition to the "uniform applicability" unique to the Sol-Gel method, it simultaneously achieves scratch resistance that surpasses conventional fluororesins with a pencil hardness of 9H and excellent initial release properties.