Highlighter

A highlighter is a blazon of autograph accessory acclimated to mark absorption to sections of argument by appearance them with a vivid, clear-cut colour.[1] A archetypal highlighter is beaming yellow, coloured with pyranine. Altered compounds, such as rhodamines (Rhodamine 6GD, Rhodamine B) are acclimated for added colours.
History

A highlighter is a cast abounding with cellophane beaming ink instead of atramentous or blurred ink. The aboriginal highlighter was invented by Dr. Frank Honn in 1962 [3] and produced by Carter's Ink Company, application the trademarked name HI-LITER. Avery Dennison Corporation now owns the brand, accepting acquired Carter's Ink Company in 1975.[4]
Styles
A brace of highlighters

Many highlighters appear in bright, generally beaming and active colors. Actuality fluorescent, highlighter ink glows beneath atramentous light.[5] The best accepted blush for highlighters is yellow, but they are additionally begin in orange, red, pink, purple, blue, and blooming varieties. Some chicken highlighters may attending greenish in colour to the naked eye. Chicken is the adopted blush to use back authoritative a archetype as it will not aftermath a adumbration on the copy. Yet, the use of altered colour highlighters accompanying can systematically accomplish advice alike added organized and clear and in aerial contrast.

Highlighters are accessible in assorted forms, including some that accept a retractable acquainted tip or an eraser on the end adverse the felt. Added types of highlighters accommodate the trilighter, a triangularly-shaped pen with a different-coloured tip at anniversary corner, and ones that are stackable. There are additionally some forms of highlighters that accept a wax-like affection agnate to an oil pastel.

"Dry highlighters" (occasionally alleged "dry band highlighters") accept an applicator that applies a attenuate band of highlighter band (physically agnate to audio tape) instead of a acquainted tip. Unlike accepted highlighters, they are calmly erasable. They are altered from "dry mark highlighters", which are sometimes advertised as actuality advantageous for highlighting books with attenuate pages.

"Gel highlighters" accommodate a gel stick rather than a acquainted tip. The gel does not drain through cardboard or become broiled out in the pen as added highlighters' inks may.

"Liquid Highlighters" in a ambit of colours are additionally available, and because they put added ink on a folio back highlighting, accomplish words angle out added than with non-liquid types. Additionally the actuality that added highlighting ink is put on the folio with aqueous highlighters agency that the highlighting ink is abundant added arresting to crumbling with age.

"Pastel Highlighters" uses delicate dyes instead of fluosent dyes.

The boilerplate highlight breadth is 5 inches.
Other uses
Yellow highlighting on a folio of photocopied text

Some chat processing software can simulate highlighting by application a address agnate to about-face video on some terminals.

Example of highlighting on a chat processor.