How much do You Know about Metal Zipper?

A metal zipper is a kind of zipper, which refers to the zipper whose teeth are made of copper, white copper, or aluminum. Compared with nylon zipper and resin zipper, it is stronger and is mostly used in jeans, coats, and backpacks.

Classification

According to the size, it can be divided into 3 #, 4 #, 5 #, 7 #, 8 #, etc. the size of the zipper varies according to the size of the teeth. Because it is often used in jeans, coats, and backpacks, the size of its zipper is large.

According to the type, it can be divided into the closed zipper, open zipper (detachable), double closed zipper (x-zipper and double slider opposite each other or o-zipper and double slider opposite each other), double open zipper (reverse opening detachable)

Selection

Cloth tape: as the raw materials of metal zipper cloth tape are composed of polyester silk thread, sewing thread, core thread, and other different kinds of silk threads, their components and colorability are different, so the color difference is easy to occur on the same zipper. At this time, when selecting cloth tape, choose one with uniform dyeing and no turbidity point. Cloth tapes made of different fabrics are mainly soft.

Mi teeth: the MI teeth of the metal zipper are also plated and colored, so when shopping, you must pay attention to whether the plating color on its surface is even, whether there is a colorful flower, and whether it is smooth when pulling the zipper up and down. After the zipper is pulled, it must be observed whether the left and right teeth are engaged with each other. Asymmetric zipper teeth will certainly affect the use of the zipper.

Slider: there are many shapes of metal zipper sliders. The finished product can be small and delicate, or rough and magnificent. However, no matter what kind of slider, you should feel whether the slider can be pulled and opened freely and whether the zipper can not be pulled up or closed. All the sliders sold in the market are equipped with self-locking devices, so after pulling the zipper, it is necessary to check whether the zipper will slide down after the lock is fixed.

Limit Code: the upper and lower stops must be tightly fastened or clamped on the teeth, and must be solid and perfect.

Maintenance skills

1. When pulling the metal zipper, the teeth on both sides must be close to each other first, and the top must be aligned. Then, hold the metal zipper head and pull it gently along the track. Do not pull it too hard.

2. When moving the metal zipper head, pay attention not to twist the sundries such as the lapel or the cloth edge into the metal zipper, to avoid "tooth skewing", "belly breaking", "tooth peeling" and other phenomena.

3. If the metal zipper is astringent and difficult to pull, do not pull it hard. You can apply some wax or soap to the metal zipper to pull it.

4. If the single square teeth of the metal zipper head diverge and become loose due to wear, you can gently clamp the closing end of the metal zipper head laterally with popular mountain pliers, and the metal zipper will become better immediately, and the single square teeth will close tightly without loosening.

5. Avoid contact with a damp environment: some teeth of the metal zippers will be blackened due to metal oxidation and immersion.

6. Avoid contact with rubber bands: because rubber bands contain sulfide when metal zippers are bound with rubber bands, metal chain teeth will be vulcanized (blackened).

7. Wash and dry in time after water washing: because the dyes or residual chemicals in the fabric react with the metal parts through oxidation-reduction, it may cause the metal parts to change color.