If you have tried everything to fix a broken zipper, then you should replace it.If you want to replace a zipper, you will need to get a new one that is the same size as your old one, remove it with a seam ripper, and then sew it into place.It is not difficult if you have a sewing machine and basic sewing skills.
Step 1: Measure the opening.
It is important to choose a size that is the same as your old one.This will make sure that your item will fit.Before you buy a new one, make sure you measure your old one.
Step 2: The old one has the same style and color as the new one.
It is important to pick a zipper that is the same color and style as the old one.If you want to find the best match, bring your old zipper with you and take a picture of it.
Step 3: If it is necessary, shorten the zipper.
The best way to shorten a zipper is to use a pair of scissors.To mark your fabric, identify how much you need to shorten the zip.The excess zipper can be cut by cutting across the fabric and teeth.If you shorten the zip, you need to install a new pull stop.A pull stop at the bottom of the zip up prevents it from coming off when you open it.You can find pull stops in craft stores.They look like small pieces of paper.If you want to install a new pull stop, push the prongs into the fabric below the last one.Use pliers to close the prongs on the backside.You can still open it all the way if you have a pull stop on each side.
Step 4: Before you remove the old one, you should note how it is positioned.
Look at how the item is sewn into it.It's important to sew the same way.Is the material visible or hidden?Does the material behind the edges of the fabric peak out?How much?Measure anything you notice and take them as well.As you sew the new zipper, record what you find.
Step 5: You can use a seam ripper to cut the stitches.
To locate the first stitch, hold the seam ripper in one hand and the edge of the fabric in the other.The long end of the seam ripper should be inserted into the space between the items.You should notice the thread separate when you do this.You should keep repeating this with all of the threads.A seam ripper is the best tool for removing an old zipper because it allows you to cut the stitches without damaging your fabric.The design of the seam ripper blade makes it easy to cut the stitches without damaging the fabric.The seam ripper cuts the threads in the middle of the crescent.
Step 6: As you go, gently pull the fabric.
To loosen up threads for cutting, tug gently at the fabric as you go.The item fabric will be separated from the zipper fabric.It is easier to get at the threads with a seam ripper if you have more space between the two fabrics.
Step 7: Leave any stray threads.
Remove the severed threads with your fingers after you have cut all of the threads for the item.If you don't clear them away, they may get stuck in the sewing machine.
Step 8: You should position your new item.
You can use your notes to help you position the new zipper and pin it in place.If the raw edges of the fabric were hidden, then you will need to attach the new zipper the same way.The standard way to attach the zipper is if you are not sure.Line up the raw edges of one side of the fabric with the other side so that the pull is facing towards the item fabric.Make sure the raw edges of the zipper are lined up with the fabric's edges to pin it into place.Do the same thing on the other side.
Step 9: If you have one, you should put it in.
It is helpful to have a zipper foot.It has a notch on the side that allows you to get as close as possible to your zipper without sewing into the teeth.If you have a universal foot, remove it and install a zipper foot.Check your machine's manual for instructions on how to install a foot.If your sewing machine has a lever that releases the foot, you may have to use a small screwdriver to remove the universal foot.
Step 10: You should thread your machine with the same color thread.
It's important to use a thread that matches your item.Try to use the same color thread that was used to sew.If you can't find a perfect match, you should get a thread that matches your fabric.
Step 11: The presser foot should be lower.
Lower the presser foot near the top edge of the item fabric when you are ready to sew.Line up the presser foot so that the edge is even.This will make sure that you get an even line as you sew.
Step 12: A straight stitch is used to sew.
When everything is lined up, set your machine to the straight stitch setting and begin sewing.To make sure it is secure, back up the length of the zipper and sew down to the bottom edge.On the other side of the zipper, repeat this.As you sew, remove the pins.
Step 13: Take off all loose threads.
Make sure to trim away any excess threads after sewing.After you finish sewing, you will probably have a few.For a clean finish, trim the threads as close to the zip as possible.