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For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
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The arrangement herein shown and described provides an efficient and low cost arrangement for metallizing very thin plastic films.
English (United States)
This text was extracted from a PDF file.
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100% of the total text.
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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
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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