From the name itself, you can tell that metal zippers are those zippers with binding edges made up of individual metal pieces molded into shape then set on the zipper tape at regular intervals.
Today’s metal zippers are primarily composed of aluminum, brass, and nickel. Considering the durability of metal zippers, these are mainly used in jeans, heavy-duty garments, work-wear, and heavy luggage that have the ability to endure tough washing and high strength.
The metal zippers are in fact the oldest types of workable zippers that Gideon Sundback invented as an attempt to improve the Clasp Locked developed by Whitcomb Judson. The Clasp Locker was primarily made up of a hook and eye shoe fastener.
Metal Zipper Description
Metal zippers consist of two rows of protruding metal teeth. These metal teeth can be made of nickel, brass, or aluminum and these have been designed in such a way that they interlock similar to clasped hands to link rows and create what Elias Howe would have called continuous clothing closure.
In order to make it possible, the metal zippers are often fitted with the slider that is usually made of metal. This slider is hand operated and depending on the movement’s directions, the two protruding metal teeth rows will either be separated or interlocked. This allows for either partial or full fastening of the zipper depending on the preference of the user.
A metal zipper is most effective is used on thick or heavy weight materials like leather and denim among other types of heavy duty fabrics. Metal zippers are often found and used in denim jackets and trousers, leather outfits, bags and heavy luggage, and shoes. Metal zippers can be found in various designs depending on the intended use such as two way closed-ended, two way open-ended, and open-ended designs, just to mention a few. This kind of designs could be achieved through sewing one tip of the zipper, then sewing the two ends together or letting both of the ends to simply fall apart.
Metal zippers are different from plastic zippers in the sense that they are stronger and much more durable. However, these zippers also tend to fail at one point and when this happens, it might render the bag or garment completely useless.
Many metal zippers tend to fail the moment the insertion pin tears become loose from the zipper tape once one or more metal teeth have fallen off the tape or once the slider breaks off or jams. You need to replace or repair the zipper if you want to be able to use it once again.
Types of Metal Zippers
There are different types of metal zippers that you can find in the market today and these include the following:
- Air and water tight metal zipper
- Closed-end metal zipper
- Double side teeth metal zipper
- Reversible slider
- Open-end metal zipper
- Two way closed-end metal zipper
- Two way open-end metal zipper
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