Drag chain

The design of the pull chain is very clever, with these points:

Material selection: There are metal materials, such as aluminum alloy, durable, good texture, often used in high-end luggage; There are plastic materials, lightweight and low cost, common in ordinary clothing bags, stationery bags and so on.

Tooth shape design: like fine tooth shape, tight bite, good sealing effect, suitable for food bags with high sealing requirements; The coarse tooth shape is more smooth and easy to pull, and is mostly used for backpacks that often open and close.

Color matching: It can be determined according to the overall style of the product or the main color of the packaging bag, so as to achieve coordination and unity, such as the pull chain of the children's packaging bag will choose lively and bright colors.

Length specification: According to the size of the bag, use to determine the appropriate length, small cosmetic bag zipper is shorter, while the large suitcase zipper is longer, to ensure that the opening can be completely closed.

Handle design: there are conventional plastic or metal small handle, easy to pull fingers; There are also some creative large size, unique shape of the handle, easy to grasp, but also decorative.