What causes a wavy zipper?

A wavy zipper is what happens when you sew a zipper into a fabric that stretches or when a fabric shrinks after it’s constructed. As long as it looks good and flat when it’s being worn, don’t worry about it. If the fabric has shrunk around it you should be able to remove the zipper and then reinstall it.Click to see full answer. Also, how do I stop my zipper from curling?To avoid this from happening, either use a low heat setting in your dryer, or hang your hoodie on a hanger and let it air dry over your bathtub on the curtain rod. This should keep your hoodie zippers from curling from now on.Subsequently, question is, how do you shrink a zipper on a sweatshirt? If you want to shrink it even more, try submerging it in boiling water for 10-15 minutes. Then, run it through a hot water cycle in your washing machine and dry it in your dryer on the highest heat setting. For tips on using an iron to shrink a sweatshirt, read on! Correspondingly, can you iron a zipper? Please do not contact with zipper directly when ironing clothes. Make sure that zipper are zipped and placed on a horizontal surface. Then put a piece of cloth or paper between zipper and the iron and iron it less than 5 seconds each time, preventing zipper from deformation.Should you wash hoodies zipped or unzipped?You’ll want to wash your zipper hoodie every 6 or 7 wears to keep it clean. To wash it in a machine, close the zipper so it doesn’t snag on the fabric or get damaged. Set your washer to its delicate cycle and wash your hoodie in cold water to help preserve the color and any graphics on it.

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