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, afterward a nib dipped in ink. Ruling pens permit perfect accommodation of lineage width, and still locate a few specialized uses, but complex pens such as the Rapidograph are more commonly used. avant-garde types count ballpoint, rollerball, fountain and felt or ceramic tip pens.
The main broadminded types of pens can be categorized by the kind of writing tip or point on the pen:
A ballpoint pen dispenses an oil-based ink by rolling a little hard sphere, usually 0.51.2 mm and made of brass, steel, or tungsten carbide. The ink dries as regards quickly upon get into bearing in mind paper. The ballpoint pen is usually obedient and comes in both reasonably priced and expensive types. It has replaced the fountain pen as the most common tool for undistinguished writing. (There are positive ballpoint pens combining multiple colours in a single barrel; the writer or artist may pain the tip afterward the desired colour). Lszl Br patented the first commercially well-to-do 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 designed to enlarge the ease of use of a ballpoint pen considering the mild "wet ink" effect of a fountain pen. Gel inks are available in a range of colors, including metallic paint colors, glitter effects, neon, blurred effects, saturated colors, pastel tones, animated shades, shady colors, invisible ink, see-through effect, shiny colors, and glow-in-the-dark effects. Refillable rollerball pens have recently become handy 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 skinny slit to the writing surface. A fountain pen reservoir can be refillable or disposable; the disposable type is called an ink cartridge. A pen later a refillable reservoir may have a mechanism, such as a piston, to draw ink from a bottle through the nib, or it may require refilling taking into account an eyedropper. Refill reservoirs, in addition to known as cartridge converters, are manageable for some pens which use disposable cartridges. A fountain pen can be used taking into consideration enduring or non-permanent inks.
A felt-tip pen, or marker, has a leaky 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 further surfaces such as corrugated boxes, whiteboards and for chalkboards, often called "liquid chalk" or "chalkboard markers". Markers afterward wide tips and shining but transparent ink, called highlighters, are used to draw attention to text that has already been written or printed. Pens intended for kids or for substitute writing (as as soon as a whiteboard or overhead projector) typically use non-permanent inks. Large markers used to label shipping cases or additional packages are usually remaining 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 going on more clearly upon dark or sleek 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 come 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 as a consequence be a computer complement that is used to put up to in navigating or providing more exactness gone using touchscreens. It usually refers to a narrow outstretched staff, same to a advocate ballpoint pen. Pens exist which contain a ballpoint tip upon one end and this sort of touchscreen stylus upon the other.
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