Modified fluororesin coating for seal molds | Improved durability & adhesion prevention
"Uniform coating even on fine seal surfaces" Excellent heat resistance suppresses film peeling and wear! Prevents sticking of plastic films and reduces line stoppages.
This is a technical case study on a heat-resistant and wear-resistant modified fluoropolymer coating applied to metal heat seal molds (seal bars, receiving molds, and crimpers) used in the packaging processes of food, pharmaceuticals, and daily necessities. The coating forms a high-performance film with a uniform thickness, covering the sealing surfaces, fine structural parts, and details of the edges of the molds. **Main Improvement Effects from Implementation** - **Prevention of Film Adhesion and Sticking (Improved Release Properties)** The excellent non-stick properties prevent the adhesion of packaging films (such as plastic and laminated materials) to the molds during heat sealing, as well as the sticking of resin debris. This reduces defects in the appearance of seals and minimizes jamming. - **Outstanding Durability Against Continuous Heating and Pressurization** The application of modified fluoropolymer significantly reduces wear and peeling of the coating due to thermal cycling and pressurization friction compared to standard fluoropolymer coatings. It maintains initial release performance for an extended period. - **Extended Maintenance Cycles and Increased Productivity** By minimizing the adhesion of burnt residues and dirt to the molds, it shortens downtime associated with cleaning and mold changes during operation, thereby enhancing productivity.
basic information
【Construction Technology】 Modified Fluororesin Coating Contract Processing 【Technical Features and Functions】 ■ High Durability and Heat-Resistant Release Properties Prevents adhesion and sealing failures of various films and laminate materials under continuous heating (thermal cycling) environments. ■ Improved Coating Strength Designed to be tough, making it less prone to wear and peeling of the coating due to heating and high pressure compared to general fluororesins. ■ Uniform Precision Construction in Details Forms a uniform film thickness even on the serrated shapes of sealing bars (recessed areas), mesh patterns, and edge parts. ■ Safety and Hygiene Compliance Can be safely introduced into the manufacturing and packaging lines for food and pharmaceutical products. 【Target Substrates and Applicable Parts】 ■ Heat sealing bars, receiving molds, crimpers, welding jigs, integrated cutting blade sealing molds ■ Various metal parts including stainless steel (SUS), steel, and aluminum.
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Model number/Brand name
Fluororesin coating
Applications/Examples of results
**Main Application Areas - Packaging Line** ■ Food and Confectionery Packaging Three-side seal bags, pillow packaging machines, cup sealers, tray sealers ■ Pharmaceuticals and Medical Devices PTP packaging, sterilization bags, heat seal and welding parts for medical materials ■ Daily Necessities and Cosmetics Pouch containers, sachet bags, sealing processes for refill film containers **Case Study of Problem Solving** ■ Issue In the heat sealing process of automatic packaging machines, the repeated heating and pressurization caused the conventional fluororesin coating to wear and peel prematurely. Adhesion of the film and resin debris occurred from the damaged areas of the coating, leading to frequent seal failures and appearance scratches. It was necessary to frequently stop the line for mold cleaning, resulting in decreased production efficiency. ■ After Implementation Modified fluororesin coating was applied to the entire sealing surface of the sealing bar and receiving mold. ■ Effects and Results - Heat wear resistance was significantly improved, preventing performance degradation due to coating peeling and wear. - Film adhesion was eliminated, reducing downtime due to cleaning maintenance.
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Nikken Coating Industry Co., Ltd. has been a specialized manufacturer of functional coatings for contract processing, earning the trust of customers across various industries for 79 years since its founding. We leverage our processing technology to maximize the properties of fluororesins, such as non-stick, lubricity, and chemical resistance, providing high-performance coatings that directly address customer challenges, including "Thermo Pro Release" for thermal welding processes and "NonStick STC" for blades and precision molds. In recent years, in response to movements regarding regulations on fluorinated compounds (PFAS), "PEEK resin," which is gaining attention as a substitute for fluororesins, has become a focus. Nikken Coating Industry commercialized the world's first PEEK resin coating, "PEEKCOAT," in 1999. Based on the solid knowledge and know-how accumulated over more than 20 years, we are further intensifying our research and development efforts to explore the potential of next-generation PEEK coatings! We aim to be recognized as "the go-to for PEEK coatings" and will continue to lead the way. As "the best partner for functional coatings that builds trust through technology," Nikken Coating Industry will continue to contribute to the creation of high-quality, high-performance products.