Monday, April 15, 2019
Quality of Ball Pen Essay Example for Free
 Quality of Ball Pen  evidence frame A pen (Latin penna, feather) is a writing implement  utilise to apply  sign to a surface,  ordinarily paper, for writing or drawing. Historically, reed pens, quill pens, and dip pens were used, with a nib dipped in the ink. Ruling pens allow precise adjustment of line width, and still find a few  alter uses, but technical pens such as the Rapidograph are more commonly used. Modern types also let in ballpoint, rollerball, fountain, and felt or ceramic tip pens. l Contents hide * 1 Modern pens * 2 Historic pens * 3 History * 4 Manufacturers * 4.     1 United States * 5 See also * 6 References * 7 extraneous links I edit Modern pensThe main modern types of pens can be categorized by the  winning of writing tip or point A mark made on paper with a rollerball pen, and the tip of that pen * A ballpoint pen dispenses viscous oil-based ink by rolling a small hard sphere, usually 0. 7- 1. 2 mm and made of brass, steel or tungsten carbide. 2 The ink dries a   lmost immediately on contact with paper. The ballpoint pen is usually reliable and inexpensive. citation needed It has replaced the fountain pen as the most common tool for everyday writing. * A fountain pen uses water-based liquid ink delivered  done a nib.The ink flows from a reservoir through a feed to the nib, then through the nib, due to capillary action and gravity. The nib has no moving parts and delivers ink through a thin slit to the writing surface. A fountain pen reservoir can be refillable or disposable, this disposable type being an ink cartridge. A pen with a refillable reservoir may  feature a mechanism, such as a piston, to draw ink from a bottle through the nib, or it may require refilling with an eyedropper. Refill reservoirs, also known as cartridge converters, are  on hand(predicate) for some pens which use disposable cartridges.A fountain pen * A marker, or felt-tip pen, has a poriferous tip of fibrous material. The smallest, finest- tipped markers are used for    writing on paper. Medium-tip markers are often used by children for coloring and drawing. Larger markers are used for writing on other surfaces such as corrugated boxes, whiteboards and for chalkboards, often called liquid chalk or chalkboard markers.  Markers with wide tips and bright but  vaporous ink, called highlighters, are used to mark existing text. Markers  intentional for children or for temporary writing (as with a whiteboard or overhead projector) ypically use non-permanent inks.Large markers used to label shipping cases or other packages are usually permanent markers. * 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 combine the convenience of a ballpoint pen with the smooth wet ink effect of a fountain pen. Gel inks are available in    a range of colors, including metallic paint  
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