Zipper: The continuous fasteners!!
Evolution of zipper:
- Zipper is the brainchild of Mr. Whitcomb Judson.
- It was introduced in 1893 at the Chicago World’s Fair, then with the name ‘Clasp Locker’.
- Gideon Sundback, an electrical engineer, who was hired to work for the company designed the modern zipper in 1913.
- B.F. Goodrich Company renamed it as ‘Zipper’.
- Initially during 1930, zippers were featured in child clothing complementing them for helping children to dress up quickly & by themselves.
- Zippers came into limelight in 1937 through the French fashion designers who used them on men’s trouser.
- Esquire magazine described the zippers as ‘Newest Tailoring Idea for Men’.
- The next big boost for zippers came when they were used on jackets and could be opened on both ends.
Purpose of using zipper:
- Functional purpose : Used to open & close the special parts of the garments.
- Decorative purpose: To increase the beauty.
Note: The trimmings which are used to open & close the garments are named as ‘CLOSURE’. Buttons, zippers, VELCRO etc. are well-known closure. Zippers are considered as ‘continuous’ closure whereas buttons are ‘intermittent’.
Types of zippers:
Coil zippers — The most commonly used zippers. Normally for light weight fabric coil zippers are used. Mainly made from Nylon.
Invisible zippers — Have their teeth behind the tape whose color matches exactly with the dress color & their slider & so gives an invisible appearance. They are usually coil zipper.
Metallic zippers— Mainly found in jeans. Made of stainless steel, aluminum, brass, zinc or nickel alloy. Pieces of metals are molded into teeth & are set in a tape at regular intervals. They can be painted in any colors to match with the dress.
Plastic molded zipper – Similar to metallic zippers except the fact that they are made of plastic. They can easily be made in any color of plastic to go with the product. Polyethylene resins & mainly polyacetal resins are used to make these zippers.
Open ended zippers –Used mostly in jackets & have a box & pin mechanism to lock the 2 sides of the zipper into place.
Closed ended zippers —– Used mostly in baggage & is closed in both ends.
Construction of zipper:
Description of various parts of zipper:
- Majority of twill woven from 100% polyester or cotton polyester, nylon or combination of those.
- Knitted tapes are mostly used in knitted garments.
- Made of Metal, Plastic, Nylon etc.
- Slider moves up & down along the length of the zipper.
- The function of slider is to engage or disengage the opposite sides of chain i.e. for opening & closing the teeth.
Sliders can be
- Non – locking.
- Semi locking.
- Fully/Auto locking.
Top & bottom stop:
- Prevent the excessive up & down movement of the slider.
- It is an Additional part which helps to move the slider with ease.