How to Sew a Mandarin Collar

How to Sew a Mandarin Collar – Demo with Bonn Shirt & Dress

One of my favorite features of the Bonn Shirt & Dress is the collar. For a lack of a better term, I call it a “modified mandarin collar”.

However, on a normal mandarin collar, the left and right front meet each other at the center. Also, mandarin collar essentially is the collar stand that supports the traditional collar.

But on Bonn, the collar is quite different. The left and right fronts of the collar don’t meet; they rest on the top of the V neck. Also the collar does not stand up; it is flat against the body. In a sense, they are more like a mini yoke rather than a collar. Because of these feature, the shape of the collar is very different.

Regardless, the sewing method is like sewing a mandarin collar, with a few nuances. Even if you are not sewing Bonn, I think you would find this tutorial very useful for your other shirts.

Obviously, there are other methods out there to sew collars. This one is my go-to method. I am not sure if this is the cause or the effect; the more I use this method, the better result I get. Or because I am getting good result, I keep going to this method. I don’t care one way or the other, but I do encourage you to try it out and evaluate for yourself!

Let’s get started.

I cut two pieces for the collar and only apply fusible interfacing on one of them. Be sure to transfer the circle marking from the pattern piece to the collars. You will be glad you did.

How to Sew a Collar on a Shirt

On the uninterfaced collar, I stitch one line of guiding stitch on the outer edge. It is at the seam line, which is 3/8″ in my case.

How to Sew a Collar on a Shirt

Leveraging this guiding, I press the seam allowance in. It’s a little tricky at the corner, but you can do it. Notice that a typical collar stand/mandarin collar doesn’t have as sharp of an angle, so you wouldn’t have any issue at all.

How to Sew a Collar on a Shirt

With right sides together, pin the uninterfaced collar to the interfaced collar, aligning the inner edge. I call this an “inner edge” just because as they lay flat here in the photo, they are in fact “inner”. But when the collar is made up, this “inner” edge actually becomes the top of the collar. So don’t think too much here. I put three pins first: the center and each rounded corner.

How to Sew a Collar on a Shirt

Then I pin more (yes, I like pinning!). Because these two pieces are from the same pattern piece, they should match exactly. But if you use a very loosely woven fabric, the interfaced piece can be more “stable” than the uninterfaced piece and may appear smaller. Try to squeeze (ease) the larger piece anyway so they match; you shouldn’t have too much problem.

How to Sew a Collar on a Shirt

I stitch along the “inner” seam. See that I stitch over the folds too.

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

Trim the seam allowance.

How to Sew a Collar on a Shirt

I also do a bit of mini clipping at the inner corners and some mini notching at the rounded front corners.

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

I turn the collar right side out and take my time to press it nicely. Some might choose to understitch but I don’t (it’s a very narrow collar and when I press it, I can ensure the seam line is slightly rolled to the uninterfaced side (the final non-public side), so it’s not an issue for me. But some people choose to put that nice touch.).

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

Now I can go to the neckline. The neckline should be stay stitched. The line of stay stitching is just a hairline within the seam allowance, so it’s just a tiny bit less than 3/8″ (1 cm) from the cut edge. When the collar is finished, this stay stitch should not be visible.

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

One step that I did, but I failed to take a photo is that I clipped to the line of stay stitch around the curves at the neckline. I hope my over-imposed photo will do anyway.

How to Sew a Collar on a Shirt

Now I can pin my collar to the neckline. The circle markings are supposed to be matching the shoulder seams.

How to Sew a Collar on a Shirt

Now this part is very important on Bonn specifically. You should be matching the seam line in the front of the collar, not the cut edge. It really should be the case for whatever you are sewing anyway. Here are a couple photos to show you what I mean. By matching the seam line, the collar seam allowance actually sticks out a little. Here’s one side of it.

How to Sew a Collar on a Shirt

And here is the flip side of it.

How to Sew a Collar on a Shirt

Now if I pretend to have sewn it and turned the collar up, you see that the collar and the front edge are in line. I’d like to think that I don’t insist on perfection everywhere, but I do insist it here because any misalignment would be in the center front of the shirt!

How to Sew a Collar on a Shirt

Alright. Now I can stitch the collar to the neck line.

How to Sew a Collar on a Shirt

Turn up the collar and press the seam allowance toward the collar. If the collar front doesn’t look good, you can always redo just the 2″ (5 cm) of it. There’s nothing wrong with unpicking. One thing I learned over the years is that if there’s something I am not happy with, and I ignore it and keep moving to the next steps, later on it will be way harder (if not impossible) to fix. Don’t be like the regretful me. Re-doing just a tiny little bit here is not the end of the world.

I am happy with the collar front here, but I found that I had a pucker by the shoulder seam. What did I do? I unpicked it and redid that little part. Voila! Pucker be gone.

 

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

Everything looks good, so I can trim the seam allowance down.

How to Sew a Collar on a Shirt

To make it look extra good, I press the collar front really nicely. I use my clapper to press it down, so it’s seriously flat.

How to Sew a Collar on a Shirt

How to Sew a Collar on a Shirt

I can now bring the fold (the line of guiding stitch on the collar) to the stitch line of the neckline. Pin the collar closed.

How to Sew a Collar on a Shirt

I don’t want anything to shift, so I put the extra effort of basting the collar closed too.

How to Sew a Collar on a Shirt

From the right side (or public side), I edge stitch through all the layers.

If you have a sharp eye and are inquisitive, looking at the photo, you might ask, “why is your shirt on the right-hand side of the pressor foot?” If you ask that question, you have my virtual pet in the shoulder. Actually the reason is that I want to use this “stitch-in-the-ditch” foot, and it can only stitch exactly on the seam line (the ditch) or slightly on the left side. So I had no choice but to put my shirt to the right-hand side. You can use whatever method you like to edge stitch though. I found my “stitch-in-the-ditch” foot gives me good result, even though I have to accommodate it a little.

How to Sew a Collar on a Shirt

Here is the collar done!

How to Sew a Collar on a Shirt

It does take some time to ensure a great result, but I think it’s worthwhile, don’t you think?

I hope this is helpful! Until next time, keep stitching!

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