Onionskin

Typewritten page of canary onionskin, 1912. Note the translucency in the upper right corner, where the red library stamp on the obverse is visible.

Onionskin or onion skin is a thin, light-weight, strong, often translucent paper. Though not made from onions, it superficially resembles their thin, papery skins. It was usually used with carbon paper for typing duplicates in a typewriter, for permanent records where low bulk was important, or for airmail correspondence.^[1] It is typically 25–39 g/m² (9-pound basis weight in US units), and may be white or canary-colored.

In the typewriter era, onion skin often had a deeply textured cockle finish which allowed for easier erasure of typing mistakes, but other glazed and unglazed finishes were also available then and may be more common today.

Onionskin paper is relatively durable and lightweight due to its high content of cotton fibers. Because of these attributes and its crispness when folding, onionskin paper is one of the best papers to use for toy kites and advanced paper airplanes. Paper airplanes made from onionskin paper tend to fly very well due to their low weight and high integrity once folded.

Onionskin paper has also been regularly used in traditional cel animation. Due to its translucency, it is used as a guide in drawing the frames between key-frames. This is a process that animators refer to as "in-betweening". The process of "onionskinning" is also used in digital animation where frames are represented by digital layers in a production.

References

↑ "Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology". CoOL: Conservation OnLine. Etherington & Roberts. 2011-11-19. Archived from the original on 2014-10-16. Retrieved 2014-10-16.

Paper

History Manufacture/Papermaking

Types	Blotting Bond Construction Cotton Rag Crêpe Display Dó Asphalt Glassine India Korean Kraft Laid Manila Newsprint Oatmeal Onionskin Origami Baking Building Rice Rolling Security Seed Copy Tar Thermal Tissue Tracing Transfer Tree-free Wallpaper Washi Waterproof Wax Wood-free Wove Writing Xuan

Materials	Fiber crop Paper chemicals Papyrus Wood pulp Algal bloom (Shiro alga carta)

Specifications	Grammage Density Size Units of paper quantity Surface chemistry of paper Wet strength

Manufacture and process	Bleaching of wood pulp Calender Conical refiner Deinking Paper pollution Environmental impact of paper Hollander beater Kraft process Organosolv Paper cut Paper machine Paper recycling Soda pulping Sulfite process

Industry	Paper industry In Europe In Canada In India In Japan In the United States Paper mill List of paper mills

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