A pen is a common writing instrument used to apply ink to a surface, usually paper, for writing or drawing. Historically, reed pens, quill pens, and dip pens were used, later than a nib dipped in ink. Ruling pens permit perfect familiarization of parentage width, and still locate a few specialized uses, but rarefied pens such as the Rapidograph are more commonly used. open-minded types tally up ballpoint, rollerball, fountain and felt or ceramic tip pens.
The main open-minded types of pens can be categorized by the kind of writing tip or reduction on the pen:
A ballpoint pen dispenses an oil-based ink by rolling a small difficult sphere, usually 0.51.2 mm and made of brass, steel, or tungsten carbide. The ink dries nearly tersely on retrieve following paper. The ballpoint pen is usually honorable and comes in both within your means and costly types. It has replaced the fountain pen as the most common tool for unspecified writing. (There are distinct ballpoint pens combining combination colours in a single barrel; the writer or artiste may pain the tip later than the desired colour). Lszl Br patented the first commercially flourishing ballpoint pen.
A rollerball pen dispenses a water-based liquid or gel ink through a ball tip similar to that of a ballpoint pen. The less-viscous ink is more easily absorbed by paper than oil-based ink, and the pen moves more easily across a writing surface. The rollerball pen was initially expected to enhance the convenience of a ballpoint pen past the smooth "wet ink" effect of a fountain pen. Gel inks are friendly in a range of colors, including metallic paint colors, glitter effects, neon, blurred effects, saturated colors, pastel tones, thriving shades, shady colors, invisible ink, see-through effect, shining colors, and glow-in-the-dark effects. Refillable rollerball pens have recently become open using cartridges of fountain pen ink.
A fountain pen uses water-based liquid ink delivered through a nib. The ink flows from a reservoir through a "feed" to the nib, later through the nib, due to capillary be active and gravity. The nib has no upsetting parts and delivers ink through a thin slit to the writing surface. A fountain pen reservoir can be refillable or disposable; the disposable type is called an ink cartridge. A pen gone a refillable reservoir may have a mechanism, such as a piston, to glamor ink from a bottle through the nib, or it may require refilling like an eyedropper. Refill reservoirs, as a consequence known as cartridge converters, are open for some pens which use disposable cartridges. A fountain pen can be used gone unshakable or non-permanent inks.
A felt-tip pen, or marker, has a porous tip of fibrous material. The smallest, finest-tipped felt-tip pens are used for writing upon paper. Medium-tipped felt-tips are often used by kids for coloring and drawing. Larger types, often called "markers", are used for writing in larger sizes, often on other surfaces such as corrugated boxes, whiteboards and for chalkboards, often called "liquid chalk" or "chalkboard markers". Markers like broad tips and gleaming but transparent ink, called highlighters, are used to bring out text that has already been written or printed. Pens intended for children or for performing writing (as past a whiteboard or overhead projector) typically use non-permanent inks. Large markers used to label shipping cases or additional packages are usually enduring markers.
A gel pen uses ink in which pigment is suspended in a water-based gel. Because the ink is thick and opaque, it shows in the works more suitably on dark or 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. Gel pens often arrive in bright or neon colors.
A stylus pen, plural styli or styluses, is a writing utensil or a small tool for some new form of marking or shaping, for example, in pottery. It can furthermore be a computer adjunct that is used to encourage in navigating or providing more truth as soon as using touchscreens. It usually refers to a narrow elongated staff, similar to a radical ballpoint pen. Pens exist which contain a ballpoint tip on one end and this sort of touchscreen stylus on the other.
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