This is a brown and tan printed top, which I completed early last week, using
Simplicity 4076 (view D) and a length of polyester jersey. As evidenced by the other projects I've posted, I haven't sewn much with knit materials in the past, mostly due to negative experiences in which my machine stretched them beyond recovery. Late last year, however, I was able to acquire a four-thread serger/overlock machine, which, coupled with a need for more tops and blouses, has given me a bit of incentive to try knit fabrics once again.
Pattern ChangesSince this top basically fits like a T-shirt, I didn't really need to make any fitting adjustments; my focus was more on learning to construct a garment with knit fabric. I did lengthen it by nearly three inches at the hemline, though, as well as bringing up the front of the neckline slightly. To raise it, I cut the neckline along the line for the largest size at the center front and blended it with the lines of the size ten, as shown below.

This caused the neckline opening to become slightly smaller, so I trimmed the neckband piece by about 1.5" to 2" to compensate for the loss of length.
ConstructionWhen constructing the top, I followed the instructions provided with the pattern, except for the portion on setting the sleeves. The pattern recommends assembling the sleeves and main part of the garment separately, then setting the sleeve "in the round," but I found it easier to hem the sleeve, set it into the armhole, and then stitch the underarm and the garment's side in one continuous seam. When the seams were complete, I pressed them toward the back of the garment and topstitched them in place at the hems of the sleeves, as often seen in ready-to-wear (the topstitching is
barely visible in the photo below).
Working with the FabricPrior to stitching into the actual garment pieces, I spent some time testing scraps of the fabric on both machines to become more familiar with the knit material and adjust the stitches and settings. Once everything was finally ready, assembling this top was fairly simple.
When sewing all of the seams, I used a four-thread overlock stitch on the serger. With some of the seams, such as the neckline and armholes, I found it helpful to set the differential feed at 0.3 to slightly ease in the fabric. The easing didn't show in the finished garment because the fabric was only being eased enough to counteract the stretching that would have been caused by the feed dogs, had they been at the normal setting.
When working with the sewing machine, I used the straight-stitch foot for the basting and topstitching; the foot's narrow hole for the needle helped prevent the needle from pulling the fabric up and down. In order to prevent the fabric from stretching too much, it also helped to reduce the the pressure of the presser foot. The hems were sewn with a twin needle, using a stretch stitch - not the triple-stitch type, but one that greatly resembles a zigzag stitch, where the needle doubles back with each stitch it takes forward. Finally, I also hand-wound a bobbin with wooly nylon thread to lend the hems a bit of stretch.
In Conclusion, I think I actually had a bit of fun experimenting with knits. It seems that once the stitching and construction issues are resolved, this type of material can be somewhat forgiving in the way it fits the body. Aside from preferring just a
tiny bit more "wiggle room" at the side seams, I'm pleased with the outcome of the pattern. And since it never hurts to get more practice, I might just find myself using knits again in near the future. :-)