河村産業 List of Products and Services

The environmentally friendly 'KT-508HE' is a re-peelable tape that uses a low-tack acrylic adhesive. Its characteristics are equivalent to conventional products. Our company contributes to your CO2 reduction with the environmentally conscious 'KT-508HE'. 【Features of Kawamura Sangyo's 'KT-508HE'】 ■ Minimizes adhesive residue after re-peeling, preventing contamination of the substrate ■ Suppresses the increase in adhesive strength after heat treatment, allowing for re-peeling * The recycling PET content rate is not guaranteed. * For more details, please refer to the PDF document or feel free to contact us.

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"Transparent Low Resistance Circuit Processing" can be designed to meet customer needs in wiring configuration. 【Features of "Transparent Low Resistance Circuit Processing"】 　■ Wiring width of "0.1mm" or less, with an aspect ratio of "1 or more" is possible 　■ High aspect ratio wiring formation allows for a line resistance value of "50Ω/m" to be achieved 　■ Circuit boards can be produced utilizing the properties of insulating films *Please refer to the PDF materials for the 【Basic Configuration Diagram】 and 【Characteristic Examples】, or feel free to contact us.

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Kawamura Industries develops and manufactures materials for electronic applications and provides associated processing technologies. We will introduce technologies that have been adopted for substrates for 5G and materials for planar heating elements. 【Our Technology: Electronic Materials - Strengths of Vacuum Hot Press Coating Technology】 ■ Vacuum Hot Press In prototype and mass production using vacuum hot pressing, we can press without adhesives, allowing us to better utilize the inherent properties of the materials. (Note: We can also accommodate laminated products with adhesives.) - We have a large number of pressing machines, capable of handling various sizes and temperatures. - There are pressing machines installed in a cleanroom environment. ■ Resin Coating on Metal Foil Although we operate in a contract processing format, we can combine "metal foil + high-temperature treatment." - Our coating drying oven can handle temperatures up to 260°C, allowing for the drying of high-boiling point solvents. - We can also accommodate polyimide coating with a high-temperature curing oven that can handle up to 400°C. Including material procurement, we provide consistent support from small lots and prototypes to mass production, so please feel free to contact us. * We are currently publishing an introduction document summarizing what Kawamura Industries can do! You can view it immediately from [PDF Download].

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Kawamura Industries' "KPI-MX300F" is a polyimide powder material that can dissolve in various solvents. The film obtained by dissolving in a solvent and then heating and drying has minimal coloring and high transparency, which is a major feature. **Features of Kawamura Industries' "KPI-MX300F"** - Can dissolve in various solvents - Produces transparent, high-heat-resistant polyimide films - The resulting film has minimal coloring and high transparency *For property values, please refer to the PDF document or feel free to contact us.*

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At Kawamura Industries, we create and provide electronic materials with various functions by integrating slit processing, plasma surface treatment, sputtering processing, thermal lamination, and more. We can handle everything from prototyping to mass production, including material procurement. We also welcome inquiries for small lot requests. 【Our Technologies】 ■ Slit Processing With about 50 years of extensive experience, we can accommodate slit widths from 2mm to 2,000mm. We can process not only in clean rooms but also in yellow rooms. ■ Plasma Surface Treatment Effective for improving the adhesion of low-adhesion films like fluorine films. Our roll-to-roll equipment allows for rapid mass production startup. ■ Thermal Lamination We have a vacuum thermal press capable of handling high temperatures up to 400°C within a clean room. Our laminating machines can also operate in a clean environment from the preparation stage. ■ Sputtering Deposition We possess roll-to-roll equipment. In collaboration with partner companies, we can also perform electrolytic copper plating on sputtered films using roll-to-roll methods. *You can view technical documents and introductory materials regarding the above processing technologies from the "PDF Download" section. Please feel free to contact us with any inquiries.

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At Kawamura Industries, we apply plasma treatment to films, metal foils, non-woven fabrics, and more, performing surface modification such as hydrophilization and hydrophobicity. This process significantly improves the adhesion of various films and allows for the removal and purification of organic substances from the substrate surface. It can effectively remove residues such as rolling oils that are difficult to completely eliminate with wet cleaning. Additionally, it is possible to bond various materials together without the use of adhesives. **Features of Kawamura Industries' 'Vacuum Plasma Treatment':** - Dramatically improves adhesion - Effectively removes rolling oils and organic substances, purifying the surface - Allows for adhesive-free bonding of various materials - Selects suitable gas types and plasma treatment conditions for each project - Treatment effects last for an extended period - Continuous processing is possible with roll-to-roll technology *For more details, please refer to the PDF document or feel free to contact us.*

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Kawamura Industries' "Namil" is a material that is directly bonded without the use of adhesives, thanks to our unique plasma surface treatment and thermal lamination technology. Since it is produced through a process that does not use any adhesives or solvents, there are no emissions of volatile organic compounds (VOCs), contributing to the reduction of environmental impact on the Earth. By using aramid paper on both sides, we enhance heat resistance and varnish impregnation, and by using PPS film for the intermediate layer, we improve hydrolysis resistance. It is also possible to produce a high heat-resistant grade using polyimide film for the intermediate layer. **Features of Kawamura Industries' "Namil":** - Excellent heat resistance due to the absence of adhesives - Thin and excellent thermal conductivity due to the absence of adhesives - Superior varnish impregnation due to the use of aramid paper on the surface - Excellent oil resistance and hydrolysis resistance. *For more details, please refer to the PDF document or feel free to contact us.*

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At Kawamura Industries, we have been performing slitting processes on insulating paper, plastic films, and metal foils since our establishment. We can customize processing to meet various needs, such as general environments and clean environments (clean class = 1,000), and we select processing methods that do not produce burrs or slitting debris according to the materials used. **Features of Kawamura Industries' Slitting Process:** - Supports high-precision slitting with a width tolerance of less than 20μm - Equipped with a yellow room, allowing slitting of photosensitive materials - Slitting can be performed after laminating backup films or protective films *For processing conditions, please refer to the PDF document or feel free to contact us.*

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Kawamura Industries' "Polyimide Laminate (PI-Plate)" is a laminate made by laminating and thermally bonding polyimide film that has been activated on its surface through plasma treatment. 【Features of Kawamura Industries' "Polyimide Laminate"】 　■ Excellent heat resistance due to being adhesive-free 　→ Continuous: 200°C / Short-term: 400°C 　■ Exhibits excellent mechanical properties derived from polyimide film 　■ Laminate can be produced in sizes up to 480mm × 1,100mm 　■ Maximum thickness of 10mm (proven) 　※ Please feel free to consult us regarding thicknesses over 10mm. ※ For examples of properties, please refer to the PDF document or feel free to contact us.

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At Kawamura Industries, we perform thermal lamination processing using large press equipment and continuous thermal lamination devices. This is carried out in a clean room, and adhesive-free lamination processing of materials treated with plasma is also possible. Please feel free to consult us regarding contract processing! 【Features of Kawamura Industries' 'Thermal Lamination'】 　■ High-temperature bonding (Max 400℃) of sheet materials, etc., is possible using vacuum thermal press equipment. 　■ Roll-to-roll bonding is possible using continuous thermal lamination equipment. *For more details, please refer to the PDF materials or feel free to contact us.

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Kawamura Industries provides stainless steel/polyimide materials by leveraging the know-how of polyimide coating technology developed over many years on stainless steel foil. **Features of Kawamura Industries' 'SUS/Polyimide Material'** - Excellent heat resistance due to being adhesive-free → 5% weight loss temperature (534°C) - High adhesion strength achieved through unique polyimide technology → Stainless steel/polyimide adhesion strength (2.4 kN/m) - Wide range of thickness options → Stainless steel thickness (15, 18, 20, 30, 50 μm) → Polyimide thickness (selectable between 5-25 μm) *For examples of properties, please refer to the PDF document or feel free to contact us.*

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At Kawamura Industries, we perform sputtering processing of copper, nichrome alloy, and chromium on various substrates. If greater adhesion is required, we can propose pre-treatment using our plasma treatment. **Features of Kawamura Industries' "Sputtering Processing"** - Roll to roll sputtering processing → Example of copper sputtering: thickness 0.1 to 0.2 μm - Capable of continuous film formation with different metal types → Multiple cathodes used - Supports sputtering of copper, nichrome alloy, and chromium *For target materials other than those mentioned above, please consult us. *For more details, please refer to the PDF document or feel free to contact us.

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Kawamura Industries offers contract coating services for clean coatings. The cleanliness is managed at Class 1,000 or below, and the coater area has a performance level of Class 150 or below. 【Features of Kawamura Industries' 'Clean Coating'】 　■ High-temperature drying 　→ Max 260℃ 　■ Clean compatibility 　■ Can be combined with plasma pre-treatment, lamination, slitting, etc. *For the main specifications, please refer to the PDF document or feel free to contact us.

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Kawamura Industry's "Backup Tape" is a re-peelable tape that uses a low-adhesion acrylic adhesive. It is suitable for carrier films (backing materials) for COF and protective films. 【Features of Kawamura Industry's "Backup Tape"】 - It is unlikely to leave adhesive residue after re-peeling, preventing contamination of the adhered material. - Ideal for backing and masking applications of thin materials with light peeling. *For more details, please refer to the PDF document or feel free to contact us.

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Kawamura Industries responds to requests such as "In the future, we hope to receive deliveries in different forms like slit products, but at the development stage, we would like the bending process to be performed." 【Features of Kawamura Industries' 'Pressure Heat Forming (Bending) Processing'】 ■ A wide range of equipment lineup ■ Consistent support from prototype development to mass production *For processing conditions, please refer to the PDF document or feel free to contact us.

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Kawamura Industries offers a wide range of insulating caps for industrial motors as well as motors for EV/HEV vehicles. The end sealing is done using ultrasonic welding, so no adhesives are used. 【Features of Kawamura Industries' 'Insulating Cap Molding Processing'】 - Insulation can be achieved simply by covering with a cap, which reduces the labor involved in taping. - Processing can be customized to match the diameter of the customer's neutral point. *For processing conditions, please refer to the PDF document or feel free to contact us.

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At Kawamura Industries, we can perform punching processing not only under general environmental conditions but also in clean environments. We have equipment that can accommodate both small quantities and mass production. 【Features of Kawamura Industries' 'Thomson/Eching Die Punching Processing'】 　■ Punching processing is also possible in clean environments 　■ We can respond to requests starting from small quantities *For processing conditions, please refer to the PDF document or feel free to contact us.

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Kawamura Industries manufactures insulation materials for transformers using large cutting machines capable of cutting 3M-grade materials and routers capable of processing thick materials up to 100mm. **Features of Kawamura Industries' 'Board Molding Processing'** - We own large cutting machines, allowing processing of materials with large original board sizes. - We have large NC routers, enabling processing that requires precision over large areas. - We possess thick NC routers, capable of deep hole processing and taper processing. *For more details, please refer to the PDF document or feel free to contact us.*

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Kawamura Industries' "Insulation Materials for Industrial Motors" has been a core business since its founding. We combine materials and processing to meet our customers' requests of "I want this material processed in this way." 【Features of Kawamura Industries' "Insulation Materials for Industrial Motors"】 ■ We can perform processing tailored to customer needs with the technology we have cultivated over many years. *For more details, please refer to the PDF document or feel free to contact us.

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Kawamura Industries performs pure water washing processing of various materials for insulation and electronic applications in a roll-to-roll format. We utilize a two-fluid shower method that combines water and air pressure for cleaning, and we manage foreign substances in pure water using a liquid particle counter. The equipment is installed in a clean room, allowing for processing in a clean environment. **Features of Kawamura Industries' "Pure Water Washing Processing":** - Uses pure water refined through ion exchange - Cleaning is conducted within a clean room - Capable of cleaning using a two-fluid shower method that combines water and air pressure - Manages foreign substances in pure water using a liquid particle counter *For more details, please refer to the PDF document or feel free to contact us.*

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