Zippers are temporary fasteners that consist of two strips of fabric, each of which has tens or hundreds of specially-shaped plastic or metal teeth. A slider joins the two sides by pushing the teeth together as it rides along the two sets of teeth. Zippers can be either open-ended or close-ended in design. Open-ended zippers lock both sides of the zipper into place. Close-ended zippers remain closed at both ends.
There are many types of zippers. Examples include heavy-duty zippers, sewing zippers, upholstery zippers, plastic zippers, clothing zippers, and custom zippers. A heavy-duty zipper is a made of metal and has a teeth size of 5, 8 or 10 mm when closed. The teeth are molded into shape of the zipper tape at short and regular intervals. The teeth of a sewing zipper are located behind the tape, which is dyed to match the color of the garment. A plastic zipper is similar to a metallic zipper, but uses plastic teeth. Sewing zippers that are made of plastic can be died to match the color of the garment as necessary. The teeth of an upholstery zipper are made of coils. A clothing zipper is used to replace buttons, Velcro tapes, or buckles. A slider runs on two coils on either side. Other types of zippers such as a custom zipper are also available.
Zippers can be positioned to one side of the opening, in a lapped seam, or centered in the opening. The lapped method is used at side seams in garments. The centered method is used for center, front or back openings. It can also be used in an opening in a panel of fabric, such as cushion covers. As a rule, a zipper’s opening should be 3/8 in. longer than the zipper and include some seam allowance at the open end of the zipper.
Related Products & Services
Hook and Loop Fasteners
Hook and loop fasteners consist of two layers of fabric. The hook layer is covered with tiny hooks and the loop layer is covered with tiny loops. Hook and loop fasteners are commonly known as Velcro®. Velcro is a registered trademark of Velcro Ind.
Quarter Turn Fasteners
Quarter turn fasteners are fasteners which must be subjected to a quarter turn motion to properly assemble.
Snap fasteners or snaps are mechanical fasteners that close or lock with a clicking or snapping sound.