Electrostatic tension control of webs

Details Electrostatic tension control of webs Electrostatic tension control of webs

B - Operations, Transporting

65

H

B65H 20/02 (2006.01)

Patent

CA 2598267

An electrostatic charging system holds a film web to a roll without significant slippage, thus allowing for proper tension control of the web even with extreme differences in tension upstream and downstream of the motorized roll. The system can electrostatically transfer a web using motorized drum rolls with an internally integrated web severing knife.

La présente invention concerne un système de charge électrostatique qui contient un film en bande continue en rouleau qui ne glisse pas de manière significative pour le contrôle correct de la tension de la bande, avec des différences extrêmes en amont et en aval de la tension du rouleau motorisé. Le système peut transférer une bande de manière électrostatique, à l'aide de rouleaux en tambour avec un couteau de séparation du film en bande continue, intégré en interne.

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