Since a bow tie is a rather small item, precission with sewing is key to a good result. Any slight difference between the upper and lower part of the bow will stand out. To get a great result I found it very helpful to trace the actual seam lines onto the interfacing and follow that while sewing.
Later in the construction steps, you will be asked to press your fabric. Please be careful that you are not using too much heat on a delicate fabric that can't handle it.
It's a good idea to try pressing some fabric scraps before you start. This will allow you to figure out what is a good heat setting for the fabric you are using.
This pattern includes a grain line. This grain line is mostly there to be used with the interfacing. Since each pattern piece is interfaced, the grain line of the fabric itself is not so important. You can even change this from the standard for more informal impressions.
This pattern allows you to make a bow tie that is the right length for a certain neck size. It can also make one that has a ribbon and hardware that makes the bow tie adjustable to different neck sizes. This is useful if not all of your shirts have the same neck measurements, or if you sometimes like shirts with more ease in the neck.
Since the bow tie is constructed with the right sides of the fabric against each other, the whole thing will have to be turned inside out. You probably want to consider using a small seam allowance of 6mm (¼ inch) to reduce the bulk.
Lay both the sides you made on top of each other, right sides together. Sew all along, but leaving an area of 5cm open in the middle of the collar band. Through this opening we will turn the bow tie right side out.
Then use the back of a large crochet hook, or some other appropriately long skinny object, to turn the two sides right-side-out through the little opening. Start by gently pulling the two fabric pieces at the end of the bow apart. Then push the end of the bow up between the two pieces of fabric. Keep gently pushing while pulling the rest of the tie down over it. This can be a tedious procedure. Take your time and be gentle. It's easy to push too hard and rip stitches or fabric.
Now all that is left is closing the litle hole we used to turn the bow tie right side out. You can do this by hand with a slip stitch, or a ladder stitch. Or you can use the machine and stitch right at the edge of the band. Since this will normally be hidden by the collar of your shirt, it will not be all that obvious.
The first thing to do is to sew the adjustment ribbon to the shortest of the bow parts. The ribbon should be 290mm long. If it is different, you have to make sure that you align it such that the ribbon and short bow piece together are as long as the long bow piece.
Lay both the parts of the medium bow on top of each other, right sides together. And lay the long bow on top of the ribbon and short bow part, also rights sides together.
Then use the back of a large crochet hook, or some other appropriately long skinny object, to turn the two parts right-side-out through the ends. Start by gently pulling the two fabric pieces at the end of the bow apart. Then push the end of the bow up between the two pieces of fabric. Keep gently pushing while pulling the rest of the tie down over it. This can be a tedious procedure. Take your time and be gentle. It's easy to push too hard and rip stitches or fabric.
Now we need to add the two pieces of hardware that make the bow tie adjustable. The oval looking piece will be attached to the part without the adjustment ribbon. And the piece with the T shaped attachment will go on the part with the ribbon.
First do the part without the ribbon. This is because the fabric tail of the ribbon piece will have to go through the oval part before sewing on its hardware. If you would do it in the other sequence, you may not be able to feed it through.
First we fold the side in under an angle. Then we fold the end over by just a small seam allowance, something like 5mm. Then we fold it over again, for about 1cm. Finally we stick the oval ring under this last fold and stitch across.
