Eliminate the unevenness of the spiral pattern and resolve creases, wrinkle transfer, and curling.
At Showa Marutatsu Co., Ltd., we propose a solution for "wrinkle elimination" using M cores and G cores that have no spiral grooves. In standard paper tubes, the spiral grooves can transfer to films and sheets, causing wrinkles. Since M cores and G cores do not have spiral grooves, such wrinkles do not occur. During the winding of films, various issues can arise due to factors such as the winding core, equipment, and working environment, leading to winding troubles with the film. Kiku wrinkles are one such issue. We propose solutions for Kiku wrinkles from the perspective of the winding core. 【Features】 ■ M cores and G cores do not have spiral grooves, so wrinkles do not occur ■ Eliminates winding wrinkles, wrinkle transfer, and winding habits ■ Proposes solutions for Kiku wrinkles from the perspective of the winding core *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Product Features Details】 ■M Core - Seamless paper tubes boasting extremely high surface smoothness, roundness, and straightness. - Used for winding ultra-thin films and metal foils ranging from 4 to 20 microns. ■Clean M Core - Used for winding ultra-thin films and metal foils ranging from 4 to 20 microns. - Paper tubes with special dust-proof processing on the inner surface and ends, minimizing paper dust generation. - Reduces dust generation from chucking and prevents paper dust from falling off the ends. ■G Core - Surface winding improved in smoothness through special polishing. - Paper tubes with high surface smoothness, roundness, and straightness due to special polishing processing on the surface. ■Clean G Core - The surface of the paper tube is processed to achieve excellent surface smoothness, roundness, and straightness. - Paper tubes with special dust-proof processing that minimizes paper dust generation. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
[Applications] ■ Conductive film, hard coat layer, and connector part FPC that make up the touch panel ■ FPD (LCD) *For more details, please refer to the PDF document or feel free to contact us.*
Detailed information
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G Core Clean G Core Eliminates the unevenness of the spiral texture, resolving creases, wrinkle transfer, and curling issues.
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Company information
Showa Marutatsu Co., Ltd. is a long-established comprehensive packaging manufacturer that celebrated its 100th anniversary in November 2023. We develop products in categories including "paper tubes," "paper and plastic cores," "transport packaging," and "containers," with a focus on the manufacturing technology of "paper tubes." Among these, our "transport packaging" includes a wide range of products that can be proposed to both new and existing customers. We specialize in packaging design that combines primarily paper components to create lightweight, strong, and easily disposable solutions. We offer unique proposals that reflect our long-standing paper tube manufacturing technology, such as paper pallets made with paper tubes that have excellent axial compression strength. Since our products are mainly composed of "paper tube base paper," they possess strengths not found in regular cardboard, making them less susceptible to humidity. Most of our paper products are made from 100% recycled paper, allowing them to be disposed of as paper waste after use and return to paper form. We will continue to develop environmentally friendly packaging in the future.
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