Wrinkle expansion effect and wrinkle prevention! 【Micro Groove Concave Roll】

By maintaining the friction coefficient through fine groove processing, it is possible to impart the film's expansion function regardless of the roll material or the presence of drive!

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.

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