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Similar to ballpoint pens, most felt tips are also oil-based which means they have the same problems as a ballpoint pen. “Just like with ballpoint pen stains, your best options are going to be ...
Another factor in stain removal is the fact that stains can sometimes comprise two separate staining agents, which require separate forms of removal. A machine oil stain could also contain traces of metal, for example. [1] Also of concern is the color of the material that is stained. Some stain removal agents will not only dissolve the stain ...
A ballpoint pen, also known as a biro [1] (British English), ball pen (Hong Kong, Indian, Indonesian, Pakistani, and Philippine English), or dot pen [2] (Nepali English and South Asian English), is a pen that dispenses ink (usually in paste form) over a metal ball at its point, i.e., over a "ball point".
Ferro-gallic deposit accumulation in the feed system can clog the small ink passages in fountain pen feeds. Further, very acidic traditional iron gall inks intended for dip pens can corrode metal pen parts (a phenomenon known as redox reaction/flash corrosion). These phenomena can destroy the functionality of fountain pens.
In addition to being used for labelling microscopy slides, permanent markers can be used to do a negative stain of a bacterial sample. This means the background is stained with the marker, but the bacteria are not. The bacteria can be seen because they are unstained (lighter) while the background is stained (darker). [2]
[2] Ballpoint pen enthusiasts find the pens particularly handy for quick sketch work. Some artists use them within mixed-media works, while others use them solely as their medium-of-choice. [3] The medium is not without limitations; color availability and sensitivity of ink to light are among concerns of ballpoint pen artists. [4]
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 abrasion. These erasers physically remove the ink and the paper it has marked from the larger sheet.
The tip of a gel pen. A gel pen uses ink in which pigment is suspended in a water-based gel. [1] Because the ink is thick and opaque, it shows up more clearly on slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration.