Problems with fleece?

Embroidery on pile fabrics

Pile fabrics are textured fabrics such as terry, velvet, polar fleece, and corduroy. They may also be described as fabrics with fur-like covering. The "pile" itself is the raised fibers from the surface of the fabric.

So what's the problem?
As the embroidery machine stitches the design, fibers get caught between stitches creating embroidered designs with jagged edges and fibers randomly protruding inside design elements. Fabrics with thick pile tend to cause the embroidery design to sink in as well as cause design registration problems. Registration refers to the alignment of embroidery design elements. Bad registration means design elements are not aligned properly. In short, these issues produce embroidered designs that are not aesthetically pleasing, and furthermore it reflects poorly on the embroidery company. But not to worry, these simple tips will make those pesky fibers go away.

To read the full article:

http://www.digitsmith.com/embroidery-pile-fabrics.html