Friday, June 15, 2012

Sewing On Leather: Stitching and Seams

Now that I've confessed to fusing all kinds of fusibles to my leather with an iron, it's time to talk about how I'm sewing things together.

There's been a bit of chatter in the blogosphere recently about how useful (or not) tutorials are when written by novices or those who don't know good technique. I've never written a tutorial, but I do like to blog about  the techniques that worked for me as a part of my sewing journey. So, I feel the need to add this disclaimer: this is what is working for me on my very first leather project and with the tools and leather that I am using. I am not an authority; I'm a learner. And I welcome any and all comments and suggestions on better techniques. OK, on to the fun...

Stitching on Leather test scrap

Basics
As far as stitching goes, a slightly longer stitch length coupled with a leather needle seems to be the usual best practice. Do not backstitch (why make more holes?) and instead just tie off your thread ends. So all of that is what I did, too.

If you look at the test scrap below, you can see what happens when you pull out a row of stitches - it leaves a very visible line of holes! This test was enough proof to convince me to take things slowly!

The line of holes is the second line from the right (photo center).

Also, since you don't want to pin your leather, use small binder clips. I got some fun hot pink and lime green ones at Staples for $1.99 for 20, which beats the pants off of Wonder Clips, which seem to be pretty expensive on-line and I can't seem to find anywhere in the Garment District.


The Actual Sewing
Sewing Machine: Fancy Modern Viking vs. Granny's Kenmore
So, I was contemplating which machine to use for sewing this jacket - my computerized Viking Sapphire or my vintage Kenmore that was inherited from my Grandmother.

After MUCH testing on scraps and looking at the stitches and seams, I've decided on a compromise: I'll do most of the sewing on my Viking because of how easy it is to use and adjust as I go. Honestly, this is the machine I'm most comfortable using and it has a leather setting which worked beautifully. 

However, since the very best looking stitches that I made were on my Granny's old Kenmore, any stitches that will show - topstitching, etc., will be done on Granny. Also, since the old Kenmore sews slowly as a rule, one of the benefits is that it will slow me down and hopefully keep me from messing up the areas where the stitches will show.

Presser Feet: Teflon vs Rolling Foot

I really wanted the rolling foot to win, but the teflon foot won by a nose.

I've seen recommendations for both of these feet, and in my tests, there really wasn't a huge difference, but to my eye and hand, it just seemed like the teflon foot fed the two layers of leather more smoothly and evenly.

I also tested using my narrow zipper foot and that actually worked out pretty well, too. So I'm not really sure how big a difference any of these feet really make in the end. I plan to use the zipper foot for the zippers since I'll be sewing on the zipper tape and not the leather.

Opening the Seams
Again, I tested every method I could think of or had seen recommended for opening the seam allowances and "pressing" the seams open.

Finger pressing: This was fine to get things started, but not particularly effective. The seam stood up like a spine.

Finger pressing was ineffective
  

Rubber mallet:

Bashing with a mallet
Next I tried using a rubber mallet with the seam spread open over a piece of molding that I pilfered from my father-in-law (the mallet is his too). It was somewhat effective, although the seams didn't lay precisely flat even after much bashing.



Iron: I hope at this point you aren't surprised that I took a hot iron to my leather. And, quite frankly, the iron - used with a silk organza press cloth and my piece of molding - was easily the most effective method of  opening the seams. Honestly, they behaved perfectly and there seems to be no adverse effects whatsoever. 

Good old iron and pressing cloth



Glue and Tape:
 
Glue, binder clips and leather tape in 1/4" and 1/2" width.
To finish the seams, I tested gluing them down, topstitching and using leather tape in 2 different widths. The glue was very messy (read: making a mess is part of my baking process. But what works in the kitchen is not appropriate for the Craft Lounge.)

I thought I'd found a good solution when I tested the leather tape. It basically is double sided, super sticky, clear tape. It really held down the seams, but when I tried to topstitch, the only thing I accomplished was totally gunking up the needle to a point where it got stuck in the leather. Not good.

Leather tape in action.
Quite frankly, I don't think glue or tape is necessary. If there are any unruly seams that aren't going to be topstitched, then I would use the tape. But overall, I don't think I really need to do either of these things.

In the end, the verdict is that some seams will be top stitched and some will just be pressed open. And I'll see how it goes.

So, there you have it! And here you have the back of the jacket - stitched with my Viking and pressed open with my iron. Oh, and by the way, I had no trouble with the back shoulder princess seams. I've heard that leather doesn't ease well, but these seams eased together nicely.


My jacket is in a bunch of pieces at the moment, but I hope will be looking more jacket-like by Monday. Have a great weekend and stay tuned!