Metal zippers distinguish between one-way and two-way zippers, in order to distinguish the type, texture, cost, etc., metal zipper manufacturers have produced a series of zippers for different uses, although various types of zippers are different, but their basic structure and functional principle is basically the same, are composed of two can mesh each other's chain teeth and pull components.
One-way zip generally can only wear a pull head, can also wear 2 pull head two-way pull, but the pull feeling of reverse pull is generally almost, the shape of the chain teeth is generally a convex side concave, representing the tooth type is Y teeth zipper and European teeth zipper. Two-way puller can wear 2 puller heads, and there is generally no difference in two-way puller feeling, and the shape of the chain teeth is consistent on both sides, but the cost is relatively high.
Any object in the process of using metal zippers, generally will need to be cleaned, but do not know that this is a very big harm to the zipper. Metal zippers are easier to discolor, so it is not suitable for cleaning, but after all, the presence of various substances when cleaning still has a great impact.
When washing, the surface of the drawhead or chain teeth is worn by the inner hole wall of the washing machine, which is especially easy to cause coating or coating wear, resulting in paint loss or copper bottom exposure; When washing, the zipper should be closed, the pull piece should be fixed, and the pull head and chain teeth should be wrapped for protection; When washing, the pull head falls into the inner hole of the washing machine, which causes the pull piece to break, twist, and the cap to fall off.
When the metal zipper is washed, the zipper is not closed, causing damage to the square, latch, chain teeth and other parts; After washing, it is not cleaned and dried in time, and the dye or residual chemicals in the fabric will REDOX reaction with the metal parts, causing the fabric or metal parts to change color.