How to achieve flame retardancy of metal zipper?

Flame retardant zipper is a special zipper. People take some special treatment measures in the production process to maintain their flame retardant properties.The main development focus of metal flame retardant zipper is the flame retardancy of tape. The flame retardant effect of tape can usually be achieved by the following two methods:

1. Woven tape with flame retardant fabric directly. It can improve the strength and other properties of the zipper, but the cost is higher, and some key manufacturing processes need to be improved.

2. Add a certain proportion of flame retardant to the raw materials of the zipper tape to achieve flame retardancy. This method is less expensive, but has the disadvantage that it may reduce the strength of the zipper and the color fastness of the tape.

In addition, adding a special layer on the surface of the zipper tape also helps to improve the flame retardancy.As an important part of closure system of protecting clothing, flame resistant zipper shall also have excellent performances in heat resistance, flame spread limitation, tensile strength, etc.