Traditional applique is done by turning under the edges of the fabric to be appliqued onto the background fabric before stitching. Or you can satin stitch over the edge of the applique fabric to attach it to the background. Raw edge applique is done by cutting the applique fabric to the exact size of the piece. A double-faced fusible webbing (Steam-A-Seam 2 is one of the brands available) is then ironed onto the back of the applique piece, the paper backing is removed and the applique is then ironed into place. There is no fabric turned under. You can complete a raw edge project with no stitching on the applique.
I am sure that the machine you need is an over locker machine to finish the raw edge. Hope this helps.
To create a clean and durable stitch for the edge of fabric, use a serger or overlock machine to sew a serged edge. This type of stitch wraps around the edge of the fabric, preventing fraying and providing a strong finish.
To create a clean and professional finish on your sewing project using the edge stitch feature on your sewing machine, adjust the machine settings for a straight stitch close to the edge of the fabric. Guide the fabric carefully to ensure a neat and even stitch line. Press the seam flat after stitching to give it a crisp finish.
you have 2 or more pieces of fabric, one for your background and the other your shape/pattern which you want to attach. you attach it simply by sewing around the edge of the fabric usually with a zig-zag stitch. by doing this you using applique to attach the fabric.
To sew the edge of fabric, you can use a sewing machine or hand sew with a needle and thread. Start by folding the edge of the fabric over to create a clean edge, then stitch along the folded edge using a straight stitch or a zigzag stitch to secure it in place. Trim any excess fabric if needed.
A Baby Lock Serger is a sewing machine sometimes known as an "overlocker". These machines actually trim the edge of the fabric as they stitch giving a professional finish.
If you do not have a serger you can use a zig-zag stitch over the edge of the fabric.
An overlock machine is designed to do this job. However you can do overlock by using the zig zag stitch. When sewing edge of garment bring stitching right to the end to create an overlock stitch.
If you mean the edge of the Aida cloth or linen upon which you are cross stitching, then you can just machine sew a zig zag stitch around the very edge of the cloth. I find this helps keep the Aida cloth threads from continually falling out along the edges. Note: the zigzag stitch doesn't need to be tiny, probably a medium size.
The buttonhole stitch is a loop stitch that reinforces the edge. It is similar to a blanket stitch.
to lock the edge