Apr 6, 2022     GKFTII


A zipper consists of two strips of material with metal or plastic teeth along the edges and with a sliding piece that draws the teeth into interlocking position when moved in one direction and separates them again when moved in the opposite direction.

The invention of the zipper revolutionized the way clothes, as well as other items such as sleeping bags and tents are fastened.

Zipper are simple to use and extremely durable. Sometimes, however, buttons are the better choice, especially when a decorative effect is desired.

All zippers consist of a chain of metal or plastic teeth, or a synthetic filament formed into a ladder or coil sewn to fabric tapes. Zippers are open and close by means of a slider with a tab that moves it up and down. Top and bottom stops keep the slider from running off the zipper.

Zippers are made in many weights and sizes, heavier ones being stronger. Since metal and nylon zippers are about equal in strength and performance, the choice is largely a matter of personal preference. However, nylon zippers are lighter and usually more flexible than metal zippers.

All modern sewing machines come equipped with a zipper sewing foot. This foot is asymmetrical so that it can run alongside the teeth or coil of the zipper.

Types of Zipper:

  1. Metal Chain Zipper – Metal zippers are used for heavy duty fabrics such as denim but also as ornamentation.
  2. Pant or Trouser Zipper – Specially designed for pants, this zipper has a hook under the zipper tab to prevent the zipper from opening by itself.
  3. Invisible Zipper – The invisible zipper has spiral teeth. It is constructed so that it disappears into a seam; it has one closed end.
  4. Conventional Zipper – A conventional zipper has plastic teeth, comes in many colors, and is used in a wide variety of garments.
  5. Dual Separating Zipper – Separating zippers are open at both ends are sewn into a seam that will open completely.

Types of Application of Zipper:

  1. Centered: Application involving a conventional zipper. Used at the center front or back of garment, at edges of sleeves, and in home decorating.
  2. Lapped: This application, too, takes a conventional zipper. Most often used at the left side seam of pants, skirts, and dresses.
  3. Fly-front: This traditional pants application is used on men’s pants and on women’s pants and skirts. Requires a pants zipper or a conventional zipper.
  4. Hand-sewn – This is found often in hand-tailored dresses and skirts using as invisible zipper and, using a conventional zipper, in delicate fabrics.
  5. Separating: The separating zipper may be sewn in with a centered or lapped application. Used for jackets, tracksuit tops, vests, or skirts.

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