zipzárral

A zipzárral, commonly known as a zipper in English, is a fastening device used to join two edges of fabric or other flexible material. It consists of two parallel rows of metal or plastic teeth that interlock when a slider is moved along them. The slider has a central channel that guides the teeth into engagement or disengagement. A pull tab is attached to the slider to facilitate its movement.

The history of the zipzárral can be traced back to the mid-19th century with the invention of a hook-and-eye fastener by Elias Howe. However, it was Whitcomb L. Judson who patented the first practical zipper in 1893, initially intended for footwear. The design was further refined by Gideon Sundback, who developed the modern interlocking teeth system in 1913, which is largely still in use today. The term "zipper" itself was coined by B.F. Goodrich in 1923.

Zipzárrals are manufactured in various sizes, materials, and styles to suit different applications. They are commonly found in clothing, bags, luggage, tents, and upholstery. The interlocking mechanism provides a secure and easily adjustable closure. The reliability and convenience of the zipzárral have made it an indispensable component in countless everyday items.