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, in imitation of a nib dipped in ink. Ruling pens allow exact adaptation of origin width, and nevertheless locate a few specialized uses, but technical pens such as the Rapidograph are more commonly used. militant types count ballpoint, rollerball, fountain and felt or ceramic tip pens.
The main forward looking types of pens can be categorized by the nice of writing tip or tapering off 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 concerning sharply on way in later than paper. The ballpoint pen is usually trustworthy and comes in both inexpensive and expensive types. It has replaced the fountain pen as the most common tool for unexceptional writing. (There are definite ballpoint pens combining combination colours in a single barrel; the writer or player may sadden the tip as soon as the desired colour). Lszl Br patented the first commercially wealthy 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 meant to intensify the ease of understanding of a ballpoint pen subsequently the smooth "wet ink" effect of a fountain pen. Gel inks are user-friendly in a range of colors, including metallic paint colors, glitter effects, neon, blurred effects, saturated colors, pastel tones, flourishing shades, shady colors, invisible ink, see-through effect, shining colors, and glow-in-the-dark effects. Refillable rollerball pens have recently become genial 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, next through the nib, due to capillary bill and gravity. The nib has no disturbing 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 like a refillable reservoir may have a mechanism, such as a piston, to fascination ink from a bottle through the nib, or it may require refilling considering an eyedropper. Refill reservoirs, as well as known as cartridge converters, are clear for some pens which use disposable cartridges. A fountain pen can be used gone surviving or non-permanent inks.
A felt-tip pen, or marker, has a permeable tip of fibrous material. The smallest, finest-tipped felt-tip pens are used for writing on paper. Medium-tipped felt-tips are often used by children for coloring and drawing. Larger types, often called "markers", are used for writing in larger sizes, often upon extra surfaces such as corrugated boxes, whiteboards and for chalkboards, often called "liquid chalk" or "chalkboard markers". Markers with wide tips and shiny but transparent ink, called highlighters, are used to highlight text that has already been written or printed. Pens intended for kids or for the stage writing (as later a whiteboard or overhead projector) typically use non-permanent inks. Large markers used to label shipping cases or other packages are usually steadfast 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 occurring more helpfully 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 arrive in gleaming or neon colors.
A stylus pen, plural styli or styluses, is a writing utensil or a little tool for some further form of marking or shaping, for example, in pottery. It can furthermore be a computer auxiliary that is used to encourage in navigating or providing more truthfulness past using touchscreens. It usually refers to a narrow lengthy staff, similar to a radical ballpoint pen. Pens exist which contain a ballpoint tip on one stop and this sort of touchscreen stylus on the other.
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