Aluminum foil paper
Category: Reference, Education and News
Asked by: clicker5-ga
List Price: $2.00
08 Nov 2002 02:03 PST
Expires: 08 Dec 2002 02:03 PST
Question ID: 102559
Why is aluminum foil paper, shiny on one side and dull on the other side? This question is asked by my 9 year old granddaughter
Re: Aluminum foil paper
Answered By: juggler-ga on 08 Nov 2002 02:18 PST
Hello. The company that manufactures Reynolds Wrap addresses this question as follows: "The difference in appearance between dull and shiny is due to the foil manufacturing process. In the final rolling step, two layers of aluminum foil are passed through the rolling mill at the same time. The side coming in contact with the mill's highly polished steel rollers becomes shiny. The other side, not coming in contact with the heavy rollers, comes out with a dull or matte finish." From the web site of Reynoldskitchens.com: http://www.reynoldskitchens.com/reynoldskitchens/kitchenconnection/products/reynolds_wrap/faq.asp A similar explanation is offered by the Aluminum Association: "Foil is shiny on only one side because as it passes through the final foil mill, two thicknesses of foil are rolled together. The sides facing each other emerge with the dull finish, while the sides in contact with the foil mills come out shinier due to the burnishing effect of the rollers." From the web site of Aluminum.org: http://www.aluminum.org/Content/NavigationMenu/The_Industry/-Foil/Foil.htm search strategy: "aluminum foil", shiny, shinier, dull I hope this helps.
rated this answer:
Thank you very much for the answer, and the comment. I sure enjoy working with my granddaughter on Google questions. The last question she asked was, is there a cure for the common cold. We had a lot of good fun with this, because of the answer, and the many comments. Thank you juggler-ga, and neilzero-ga. I rate the answer with 5 stars.
Re: Aluminum foil paper
From: neilzero-ga on 08 Nov 2002 09:41 PST
juggler ignored the word paper in your question. For perhaps a century, paper with a very thin coating of metal, has found various uses, perhaps because it is cheaper than stand alone foil. It is shiny on one side, because it is paper on the other side and paper is typically less shiny than metal. Neil
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