Structure of Zipper - Clothing Study
The design used today, based on interlocking teeth, was invented by an employee of Whitcomb
Judson's, Swedish born scientist Gideon Sundback. In 1913 and patented as the "Hookless
Fastener" and after more improvements patented in 1917 as the "Separable Fastener". Only
after Gideon Sundbach, had remodeled Judson's fastener into a more streamlined and reliable
form, was the fastener a success.
The slider joins or separates the elements when the zipper is opened or closed. Various types of sliders are available depending on use.
The teeth, also known as elements, are the parts on each side of a zipper that mesh, or engage, with each other when passed through the slider. When the left and the right side teeth are engaged they are called chain.
The tape is manufactured exclusively for zippers. It is usually made of polyester, but depending on use, synthetic fiber tape, vinyl tape and cotton tape are also available.
Types of Function
|Closed-end||Open-end Separator||Two-way separator||Zipper with double sliders||Zipper with double sliders|
|arranged in head-to-head relation||arranged in bottom-to-bottom relation|
Standard Slider Functions
|Non-Lock slider||Automatic slider||Semi-automatic slider||Jeans slider|
|The pull-tab does not lock at any position on the body. No locking mechanism.||The lock automatically locks when no force is placed on the tab-pull.||When the pull-tab is lowered, it locks. When the pull-tab is raised, it unlocks.||Jeans Semi-automatic slider|
|Pin lock slider||Reversible slider||Plastic slider||Plastic slider|
|Pins on the pull-tab work on the elements and lock.||The pull moves along a rotating rail. The zipper opens and closes from either the front or back.(Automatic)||Locks are made of metal. (Non-Lock, Automatic)||(Non-Lock)|
|Key lock slider||Double pull|
|Can be locked with a key.||
Opens and closes from either front or back. (Non-Lock, Automatic)
How to Measure a Zipper
|Classificatio||Dimensions||Dimensions of top tape extension||Dimensions of bottom tape extension|
|Closed-end zipper||From the top end of the slider to the tip of the bottom stop||From the top stop to the tip of notches of the cut end||From the top stop to the to the tip of notches of the cut end|
|Zipper with double sliders (arranged in head to head relation)||From the tip of one bottom stop to the tip of the other bottom stop||From the upper bottom stop to the tip of notches of the cut end||From the tip of the bottom stop to the tip of notches of the cut end|
|Zipper with double sliders (arranged in bottom-to- bottom relation)||From the top end of one slider to the top end of the other slider||From the top stop to the tip of notches of the cut end||Same as the top tape extention end portion|
|Open-end zipper||From the top end of the slider to the tip of the box||From the top stop to the cut end|
|Two way separator From the top||From the top end of the slider to the bottom end of the supplementary tape||From the top stop to the cut end|
|Top open zipper||From the top stop to the tip of the box||From the top stop to the cut end|
|Reversible slider||Rather than from the top end, measurement should be made from the shoulder inlet portion of the slider||From the top stop to the cut end|
|When the top stop does not enter the slider||Measurement should be made from the top stop||From the top stop to the tip of notches of the cut end|