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五洋紙工

EstablishmentDecember 26, 1950
capital9300Ten thousand
addressOsaka/Suminoe-ku, Osaka-shi/4-13-18 Anri, Chuo-ku
phone06-6671-0175
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last updated:Sep 18, 2025
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五洋紙工 List of Products and Services

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Contract processing Contract processing
Extrusion lamination processing Extrusion lamination processing
High-performance laminated product <Development item> High-performance laminated product <Development item>
High-performance film products <Developed products> High-performance film products <Developed products>
Contract

Contract processing

We offer custom contract processing for planning, development, and mass production of customer-specific films in a clean environment with high-precision equipment.

Woyou Paper Co., Ltd. Company Overview

We are further developing and expanding advanced processing methods and sophisticated extrusion technologies.

Goyou Paper Co., Ltd. has been engaged in the manufacturing and sales of waterproof and moisture-proof processed paper, which is essential for distribution systems, since its establishment in 1950. While capturing the needs of a changing era, we have consistently strived for advanced technological development and the evolution of original products under the spirit of "one and only." We will continue to conduct further research and refinement aimed at establishing advanced processing technologies required for the next generation and pioneering business development in a market with infinite expansion to carve out the future. 【Business Activities】 ○ Manufacturing and processing sales of polyethylene and other synthetic resin laminated materials based on paper, non-woven fabric, film, etc., as well as various packaging materials and laminated materials. ○ Manufacturing and processing sales of high-function film products such as prism sheets and design sheets. ○ Contract processing of high-function film products achieved through a combination of various technologies such as surface microstructures, functional agent blending, and multilayering. *For more details, please refer to the PDF materials or feel free to contact us.

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Small multi-layer extrusion test device

We have newly installed a multi-layer extruder in our "Custom Made System," which supports the development and contract processing of customer-specific films, serving as the core of our small test equipment!

The "Custom Made System" supports film development and contract processing tailored to customer specifications, from planning and development to mass production. We have newly installed a multilayer extruder on our small-scale test machine line, which has an effective width of approximately 200mm, capable of handling 2 to 3 layers up to 5 layers. Until now, the development of multilayer films and laminates could only be verified on actual mass production lines during the initial consideration phase, but we expect that the possibilities for new development will greatly expand in the future. *The conventional single-layer extrusion test equipment can still be used as before. Please make use of our "Custom Made System" for the development of high-functionality and high-value-added new films.

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Special film manufacturing and extrusion lamination processing (development support, prototyping, contract production)

Utilizing the T-die extrusion technology we have developed over many years, we accept everything from development to contract production, even for small lots! Please feel free to consult us about any special resins or soft materials!

Do you have any experience with wanting to form fine shapes on the film surface, wanting to create a special compound resin into a film, having resin pellets but no film grade available, being turned down due to small lot sizes, being able to prototype but not mass-produce, being unable to film due to soft materials or tacky materials, or being unable to laminate in a clean room? If you have any issues with T-die extrusion, please consult us first. From prototyping with a small test machine to production with mass production machines, we will do our utmost to meet your needs! <General Environment> - Small extrusion test equipment with an effective width of approximately 210mm (single-layer to multi-layer, up to 3 types and 5 layers) - Mass production machines for extrusion lamination processing with effective widths from 620mm to a maximum of 2,150mm (multiple units) *Additional equipment: Co-extrusion, sand feed device, double-sided tandem, corona treatment, after corona, frame treatment, detectors, etc. <Clean Room> - Medium mass production machine with an effective width of approximately 650mm (single-layer) - Large mass production machine with an effective width of approximately 1,300mm (multi-layer) - Mass production machines for extrusion lamination processing with effective widths from 800mm to 1,400mm (AC treatment, sand feed device, single-sided tandem)

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Functional film

Surface micro-patterns! Functional agents incorporated! Multi-layered! We contribute to the high functionality of films through the combination of diverse technologies.

○ Surface Micro-structured Film Precisely forming micro to nano-sized fine shapes using a Roll to Roll method to enhance the functionality of the film. We have a track record in optical films, microfluidic chips, decorative films, and more. ○ Functional Agent Blended Film Example) Wavelength Cut Film: Please consult us regarding base materials and desired cut wavelength range. ○ Multilayer Film - Property adjustment with different materials: rigidity (soft to hard), increased strength, adhesion enhancement, etc. - Material cost reduction: Thin film multilayer structure using expensive functional materials. *Further enhancement of functionality through surface micro-structuring and high-functional agent blending.

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Cyclic Olefin Film COP

We accept contract processing of cyclic olefin film (COP)! Please feel free to inquire about resin grades, widths, thicknesses, and more.

Transparent engineering plastic cyclic olefin film (COP) excels in heat resistance, transparency, low UV absorption, low impurity characteristics, non-adhesiveness, chemical resistance, high moisture barrier properties, and low dielectric constant and low dielectric loss characteristics compared to other transparent plastic materials, and it also has good vacuum formability. These properties make it promising for use in optical films, bio-related films, medical packaging materials, and electronic components such as antenna substrates. Heat-resistant COP is ideal for electronic substrates. We manufacture non-stretched films from cyclic olefin resin pellets according to user specifications. Please feel free to inquire about resin grades, widths, thicknesses, and more.

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Microfluidic chip

Prototyping and mass production of film-type microreactor materials using roll to roll extrusion molding (T-die method).

"Custom-made system" that supports the development and contract processing of films tailored to customer specifications. Utilizing our film manufacturing technology (T-die method) in a clean environment and our long-cultivated fine shape surface molding technology from the production of prism sheets, we can form microchannel patterns designed by customers on the surface of thin films ranging from 100μm and above, contributing from prototyping to mass production in a roll-to-roll manner. Not just cover films for microchannel chips! Leave the prototyping and mass production of the microchannel body to us!

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