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Demand for a Sign Pen was so extraordinary that the Tokyo factories could not supply all requests. [8] The Sign Pen was one of Pentel's most successful products with more than two billion units sold. [2] In 1971 the company changed its name to "Pentel Co. Ltd." and one year later, the green rollerball pen with water-based ink, was launched. [2]
A pen is a handheld device used to apply ink to a surface, usually paper, for writing or drawing. [1] Additional types of specialized pens are used in specific types of applications and environments such as in artwork, electronics, digital scanning and spaceflight, and computing.
The marker is a felt-tipped pen with quick–drying water–based ink. [5] In 1979, Paper Mate introduced the Eraser Mate or Erasermate brand. [6] In the 1980s, Paper Mate invented the Replay 2000 pen, with erasable ink and a rubber at one end. In 2010, Paper Mate introduced "environmentally friendly" biodegradable pens, pencils and erasers. [7]
The fudepen, also known as a "brush pen", is a modern Japanese invention analogous to a fountain pen. Today, Japanese companies such as Pentel and Sakura Color Products Corporation manufacture pens with tips resembling those of a small ink brush. These brush pens work almost identically to small ink brushes and can be used for most of the same ...
Gel pens. Compared to other inks, gel ink has higher melting point viscosity, which supports a higher proportion of pigments in the medium.The pigments are typically copper phthalocyanine, carbon black and iron oxides, and the gel is made up of water and biopolymers, such as xanthan gum and tragacanth gum, as well as some types of polyacrylate thickeners.
In 1982, the firm launched its famous Pigma marker pen lines. [2] [3] In 1984, Sakura invented the first gel-based ink, featured in its new ballpoint pens lines. Gel ink pens are currently produced by many stationery companies. In 1991 Sakura acquired the Dutch company Royal Talens, and in 1997 the Dutch pencil maker Bruynzeel . [1]
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