Editing Marker pen (section)

{{Short description|Type of writing tool}}
{{Redirect|Felt tip|the EP by Love Is All|Felt Tip (EP)}}
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[[File:Felt Tip.jpg|thumb|The tip of a green felt-tip pen]]
[[File:Caran d'Ache Filzstifte.JPG|thumb|A box of colored felt-tip pens]]
[[File:Marker pen.JPG|thumb|Marker pen]]

A '''marker pen''', '''fine liner''', '''marking pen''', '''felt-tip pen''', '''felt pen''', '''flow''' '''marker''', '''sign pen''' (in [[South Korea]]), '''vivid''' (in [[New Zealand]]), '''flomaster''' (in [[East Slavs|East]] and [[South Slavs|South Slavic]] countries), '''texta''' (in [[Australia]]), '''sketch pen''' (in [[South Asia]]), '''koki''' (in [[South Africa]]) or simply '''marker''' is a [[pen]] which has its own [[ink]] source and a tip made of porous, pressed fibers such as [[felt]].<ref name=SBTCModule6>{{cite web |last=www.sbctc.edu (adapted) |title=Module 6: Media for 2-D Art |url=http://www.saylor.org/site/wp-content/uploads/2011/12/Module-6.pdf |publisher=Saylor.org |access-date=2 April 2012 |url-status=live |archive-url=https://web.archive.org/web/20120907074549/http://www.saylor.org/site/wp-content/uploads/2011/12/Module-6.pdf |archive-date=7 September 2012 }}</ref>
A marker pen consists of a container (glass, aluminum or plastic) and a core of an absorbent material that holds the ink. The upper part of the marker contains the nib that was made in earlier times of a hard felt material, and a cap to prevent the marker from drying out.

Until the early 1990s, the most common solvents that were used for the ink in [[permanent marker]]s were [[toluene]] and [[xylene]]. These two substances are both harmful<ref>{{Cite web|url=https://wwwn.cdc.gov/TSP/MMG/MMGDetails.aspx?mmgid=157&toxid=29|title=Toluene &#124; Medical Management Guidelines &#124; Toxic Substance Portal &#124; ATSDR|website=wwwn.cdc.gov}}</ref><ref>{{Cite web|url=https://healthfully.com/harmful-effects-of-xylene-4564845.html|title=Healthfully|website=Healthfully}}</ref> and characterized by a very strong smell. Today, the ink is usually made on the basis of alcohols (e.g. [[1-Propanol]], [[1-butanol]], [[diacetone alcohol]] and [[cresol]]s).

Markers may be waterproof, dry-erase, [[Wet-wipe marker|wet-erase]] (e.g. [[Transparency (projection)|transparency]] markers), or permanent.