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Removing Cling Film From Substrate

IP.com Disclosure Number: IPCOM000036303D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Mayes, RA: AUTHOR [+2]

Abstract

A film-removal machine is disclosed in which a substrate protected on either side by a cling film is passed between two similar rollers. The rollers are arranged initially to apply suction to transfer the films from the substrate to the rollers and subsequently to apply pressure to strip the films from the rollers for disposal.

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Removing Cling Film From Substrate

A film-removal machine is disclosed in which a substrate protected on either side by a cling film is passed between two similar rollers. The rollers are arranged initially to apply suction to transfer the films from the substrate to the rollers and subsequently to apply pressure to strip the films from the rollers for disposal.

Cling film may be removed manually with some difficulty from a substrate but may cause problems when the static electricity generated attracts contamination. The machine disclosed eliminates manual removal and, additionally, may be adapted to ground static to prevent contamination.

Figs. 1 and 2 show substrate 1 with cling films 2 and 3 attached to either side. Substrate 1 is passed between spring-loaded rollers 4 rotatable on bearings 5. Inside each roller 4 is stationary spider 6 which divides the inside of each roller 4 into four sealed compartments, two under vacuum via pipes 7 and two under pressure through pipes 8. Rollers 3 and 4 are rotated by motor 9. Each of the rollers 3 and 4 has small holes 10 around its circumference which, during rotation while vacuum and pressure are applied, remove films 2 and 3 from substrate 1.

After film removal, substrate 1 passes between detectors 11 to check that films 2 and 3 have been completely removed.

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