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core×昭和丸筒 - List of Manufacturers, Suppliers, Companies and Products

core Product List

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Dual-structure core for reducing roll tendency and shaft diameter conversion (Lotus Core)

Dual-structure core for reducing roll tendency and shaft diameter conversion (Lotus Core)

Keep the existing shaft (for 3 inches) and increase the outer diameter to 6 inches/8 inches! Reduce the curling tendency of films and labels during the process!

The "Lotus Core" can reduce the curling of films and labels! It is mainly used for winding separator films and in the winding processes of tack labels and tack seals. It is also effective for winding semi-finished products before they are cut into sheets. With existing equipment, it is possible to increase the winding diameter (6 inches/8 inches). It addresses cost issues related to equipment modifications and dummy winding of products. The more expensive the film, the greater the expected improvement! It prevents the deterioration of film performance caused by "curling" and "strong winding pressure" that occur during the winding process.

  • Paper and pulp products

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Functional core

Functional core

Reduce loss and waste with core selection! Featuring "M Core/G Core" and "High Precision ABS Core."

This is the catalog of our company, a specialist in round tubes, which has been manufacturing cores for over 90 years. We offer products such as the "M Core/G Core," which improves surface hardness and minimizes warping due to its flat winding process, as well as the "Clean Core," a paper core suitable for clean rooms with low dust generation. By utilizing this catalog, you can reduce waste and inefficiencies in core selection. 【Featured Products (Excerpt)】 ■ M Core/G Core ■ Clean Core ■ Step Core/SS Core ■ Paper Pallet APPA Pallet, etc. *For more details, please refer to the PDF document or feel free to contact us.

  • Paper and pulp products

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SS Placoare

SS Placoare

Significantly reduces the step marks at the beginning of the film roll!

This is a core with a cushioning function applied to the surface of a plastic core, designed to reduce "step marks" at the beginning of film winding. ■ A special stress-relief layer absorbs the steps caused by the thickness of the film. ■ The transfer of step marks to the film is minimized. ■ There is a proven reduction of up to 90% in step loss (effects may vary depending on the customer). The higher the unit price per square meter of the film, the more likely it is to see improvement effects!

  • Other packaging materials

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Segmented ABS core

Segmented ABS core

Significantly reduces the starting edge marks of film and flooring sheets!

This is a core designed to reduce step marks, with a step equivalent to the film thickness provided on the core surface in advance. ■ Step marks are alleviated from the beginning of the winding process due to special processing. ■ Proven results of up to 90% reduction in step loss (effect may vary depending on the customer).

  • Other packaging materials

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Winding core

Winding core

Cost reduction is possible! A high-performance, high-functionality core that supports various winding types!

We would like to introduce the winding cores that we handle. Starting with the "high-performance film core," which meets the demands for high strength, high precision, and high cleanliness, we also offer the "Lotus Core - HL Core," which eliminates film and sheet winding defects, among other products. Additionally, we provide various packaging materials for film packaging. 【Paper Tube Lineup】 ■ High-performance film cores - G Core, M Core - Clean G Core, Clean M Core ■ Pulping cores ■ General winding cores *For more details, please refer to the PDF materials or feel free to contact us.

  • Paper and pulp products

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Metal roll pallet with FRP core

Metal roll pallet with FRP core

Packaging materials that solve problems related to the packaging and transportation of heavy films weighing over 1 ton.

We will introduce examples of packaging materials that solve problems related to the packaging and transportation of large films weighing over 1 ton. For film rolls such as polarizers, which weigh around 1 ton each, a combination of metal roll pallets and FRP cores is fundamental. Many products are headed to China and South Korea. The design is built to withstand the G-forces experienced at sea and when traveling on poorly maintained roads. In terms of cost, it is reasonable and not as expensive as aluminum. The roundness of the FRP core is less than 0.05. The pallets can be folded and reused.

  • fiber

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High-performance, high-functionality core 'Plastic Core'

High-performance, high-functionality core 'Plastic Core'

Plastic core compatible with clean rooms and featuring high surface smoothness!

"Plastic cores" provide cores tailored to needs, ranging from general extrusion molding to ultra-high precision cores made by injection molding. We pre-process the step difference corresponding to the film thickness, significantly reducing the loss from the step marks at the start of winding. They can be washed with water and are capable of dust-free processing. Inner rib processing is possible (for ABS cores), and notching processing is also available. 【Features】 ■ Achieves high roundness and dimensional accuracy ■ Large diameter cores eliminate winding defects ■ Step elimination ■ Compatible with clean rooms ■ High surface smoothness *For more details, please refer to the PDF document or feel free to contact us.

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