Waterproof zipper is a branch of nylon zipper, which is nylon zipper with some special treatment. Commonly used special treatment methods include: sticking PVC film, sticking TPU film, soaking in waterproof agent, coating waterproof zipper and so on.
The main material used for the waterproof zipper with PVC film is PVC, and the main component is polyvinyl chloride. TPU film is a film made of TPU pellets through a special process. It inherits the excellent physical properties of TPU and has a wide range of applications. Because TPU overcomes many defects of PVC, TPU waterproof zipper is also superior to PVC waterproof zipper in terms of performance. Coated waterproof zipper is characterized by no falling off, no whitening, no embrittlement, low temperature resistance of minus 70 degrees Celsius, environmental protection, softness and good waterproofness. Among them, nylon glue-filled waterproof zipper, woven waterproof zipper, and woven airtight waterproof zipper are waterproof The performance level is above IPX6X level.
The purpose of the waterproof zipper is mainly to play a waterproof function when it encounters rain. Waterproof zippers are widely used, suitable for: cold clothing, ski clothing, down jackets, sailing suits, diving suits, tents, car and boat covers, raincoats, motorcycle raincoats, waterproof shoes, fire clothing, luggage, jackets, fishing clothing and other waterproof related products .
Choice of waterproof zippers
The main factors to consider when choosing a waterproof zipper are: the beauty of the product and the practical effect of waterproofing. Waterproof zippers should be considered from the following aspects:
1. The waterproof zipper film does not tear.
2. Smoothness, it is generally believed that the better the smoothness of the zipper, the better the quality of the waterproof zipper.
3. The surface of the waterproof zipper film is smooth and delicate, with a smooth feeling similar to leather, which is the appearance of high-quality waterproof zippers.
4. Waterproof effect: The size of the middle seam is directly related to the waterproof effect of the waterproof zipper. If it is too large, it will obviously not have the waterproof effect and lose the meaning of the waterproof zipper itself.
5. The color difference of colored waterproof zippers should be small. The difference between the color of the zipper tape and the fabric is the color difference. The color of the film surface and the color of the tape surface should be controlled within 5%.
6. Service life, the quality of the adhesive film on the waterproof zipper is directly related to the service life of the waterproof zipper.