Pfaff CREATIVE 2124, Owner'S Manual, Page: 72 / 97

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Buttonhole tips
Buttonholes that are to be sewn very close to a reinforced edge,
may sometimes not feed optimally with the buttonhole foot
because of the bulk at the edge of the fabric. In this case, use
presser foot 1 with the Integrated Dual Feed engaged.
Fabrics that shift or stretch easily should be reinforced with water-
soluble or lightweight stabilizer.
Buttonholes are particularly stable and durable if a gimp cord is
inserted while sewing (see " Buttonholes, with gimp cord").
Linen buttonholes are particularly attractive if you use a heavier-
weight thread through a topstitch needle.
Buttonholes are normally selected a little larger than the button
diameter. It is important to always sew a test buttonhole on the
same fabric/stabilizer as your project.
Cut open all buttonholes carefully. Open the curve of the
keyhole buttonhole with a belt punch or awl.