若水技研 Product Lineup

The central part of the roll, which is narrower than the ends, is referred to as a concave shape. By adding a concave shape to the micro-groove roll, it exhibits a wrinkle-stretching effect. The maintenance of the friction coefficient through fine groove processing allows the film's expansion function to be imparted regardless of the roll material or the presence of drive. Note: Concave rolls without fine groove processing have almost no wrinkle expansion function. Processable roll materials: both metal rolls and rubber rolls can be processed. Concave amount: 0.1 to 0.5%/m, determined by film material, thickness, and width. [Effects of Concave Rolls] - Effective for low-tension transport and wrinkle stretching of ultra-thin films. - Effective for wrinkle stretching of films that are weak in the TD direction. - Exhibits excellent effects on wrinkles that could not be handled by flat EXP, baribow EXP, or pinch rolls. - With free rolls, the wrinkle-stretching function can be imparted, enabling cost-effective and high-quality equipment modifications. *For more details, please download the PDF or contact us.

This is the price list for standard microgroove concave rolls. We have created a price list for roll prices, which are frequently inquired about, based on standard specifications. We also have core materials in stock, allowing for faster delivery than usual. Please feel free to contact us to confirm whether this specification of roll meets the requirements for the machine you plan to install it on, or to discuss more effective application areas. 【Effects of Microgroove Rolls】 ■ Enables increased film transport speed at the same tension. ■ Improves winding quality by stabilizing the film transport posture. ■ Allows for low-tension operation without reducing transport speed. ■ Effective in preventing scratches. ■ Exhibits wrinkle-stretching effects when used in conjunction with concave shapes. *For more details, please download the PDF or contact us.