Browse Prior Art Database

Metallized Web Transport System

IP.com Disclosure Number: IPCOM000052875D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

White, RT: AUTHOR

Abstract

The arrangement herein shown and described provides an efficient and low cost arrangement for metallizing very thin plastic films.

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Metallized Web Transport System

The arrangement herein shown and described provides an efficient and low cost arrangement for metallizing very thin plastic films.

Very thin plastic films present difficult problems in handling, for large-scale production operations, since they too easily wrinkle and develop folds when attempts are made to transport the final in continuous webs, as required for large-scale operations.

An improved arrangement, as illustrated in the drawing, utilizes rolls of the plastic film on suitable cores, as supplied by the film manufacturer, as the film source for the metallization operation. As shown, the film, wound on a roll or core 3 supplied by the manufacturer, is exposed to a metallizing operation, in which a metal vapor source 5 deposits a metallic film on the near surface of the film 7 while it is on the roll or core 3. The metallized film is then transported through a suitable web transport to a take-up roll 9. All of the above-described components are totally enclosed in a suitable vacuum chamber (not shown).

Multiple metallizing sources can be spaced around the supply roll, with suitable baffles or shields effectively separating the metallizing areas, so that a sequence of metallic layers can be placed on the film. Also, various types of metallizing can be employed, e.g., evaporation and/or sputtering.

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