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In other words, a translucent material is made up of components with different indices of refraction. A transparent material is made up of components with a uniform index of refraction. [1] Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color.
This method produces a very translucent and even looking paper over a range of areal densities from 42 to over 280 g/m 2. By making a 'normal' sheet of paper and then filling the spaces between the fibres with a material that has the same refractive index as the cellulose. This was a common process adopted in the USA.
In 1974 Becky Schroeder was given a US patent for her invention of the "Glow Sheet" which used phosphorescent lines under writing paper to help people write in low-light conditions. [28] Glow in the dark material is added to the plastic blend used in injection molds to make some disc golf discs, which allow the game to be played at night.
Vellum is prepared animal skin or membrane, typically used as writing material. It is often distinguished from parchment, either by being made from calfskin (rather than the skin of other animals), [1] or simply by being of a higher quality. [2] Vellum is prepared for writing and printing on single pages, scrolls, and codices (books).
Glassine is most commonly used as a base for further silicone coating for the manufacture of release liner.Glassine is also used as an interleaving paper in bookbinding, especially to protect fine illustrations from contact with facing pages; the paper can be manufactured with a neutral pH and can prevent damage from spilling, exposure, or rubbing.
A writing material, also called a writing medium, is a surface that can be written on with suitable instruments, or used for symbolic or representational drawings. Building materials on which writings or drawings are produced are not included.
A writing process is a set of mental and physical steps that someone takes to create any type of text. Almost always, these activities require inscription equipment, either digital or physical: chisels, pencils, brushes, chalk, dyes, keyboards, touchscreens, etc.; each of these tools has unique affordances that influence writers' workflows. [1]
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