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Older ink erasers are therefore small knives designed to scrape off the top few microns of a sheet of paper, removing the ink that had penetrated. In concert with bladed ink erasers, an eraser similar to those at the end of pencils was also used, with additional abrasives, such as sand, mixed into the rubber. Fibreglass ink erasers also work by ...
Typically the eraser is a pen-shaped device with a replaceable insert with glass fibers, which wear down in use. The fibers are very hard; in addition to removing pencil and pen markings, such erasers are used for cleaning traces on electronic circuit boards to facilitate soldering, removing rust, and many other applications.
How to remove ink stains from clothes, including how to remove ballpoint pen ink, permanent marker and felt-tip pen ink, plus how to get rid of ink from leather
Water-based inks—including most fountain pens, washable markers, gel pens, and the very popular rollerball pens—are the most common. “As you might guess, water-based inks are a little easier ...
The lamps used have very narrow bandwidth, compared to regular fluorescent black lights. Therefore, UV LEDs are claimed to be completely safe, causing no damage to eyes nor risks of skin cancer. When the black light falls upon UV-visible ink, it makes the ink fluoresce so that it emits visible light, making the message readable by human eyes. [4]
Oxalic acid is used widely as an acid rinse in the laundry industry due to its ability to remove rust and ink stains. Oxalic acid converts insoluble iron compounds into a soluble complex ion. It is because of this property that oxalic acid is one of the primary components in commercial solutions used to remove scale from automobile radiators. [5]
Pencils are commonly used at polling stations instead of pens. This is because ink might run on to different sections of the ballot and obscure the voter’s choice. The Facts.
The original Erasermate pen was a refillable ballpoint pen fitted with a replaceable eraser. A disposable version called Erasermate 2 was subsequently introduced, with an appearance similar to the non-erasable Write Bros. stick pen, except for a slightly larger girth, and of course the black eraser, affixed to the pen's cap.
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