Bernina Artista 640 User Guide - Page 44
Sewing Knit Fabrics
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44 Practical Stitches - Applications Sewing Knit Fabrics Start With a New Needle • blunt needles can damage knits Use a Stretch Needle (130/705 H-S) if Necessary • the needle point slides easily between the fibers Use a Fine Sewing Thread • coarse threads can damage knits and cause holes when the garment is washed When Basting, Use a Darning Thread • very lightweight (80 weight) darning thread is easier to remove once the seam is complete Sew a Test if Necessary • the elasticity of today's knit fabrics varies greatly • adjust basic settings to suit the fabric, the seam should be as elastic as the fabric • for greater elasticity use a shorter stitch length and/or stitch width (only one of these adjustments may be necessary) Presser Foot Pressure • soft, loose knits can wave when sewn: • reduce the pressure until the seam lies flat • the sewing computer must still feed the fabric properly Possible Problems With Sewing Knits Seam Becomes Wavy • oversew a thread along the edge • after sewing adjust edges by pulling the thread to regain the original length of the fabric and press seam flat Edges Roll • do not sew right on the edge but about 5mm in from the edge • cut off allowance after finished sewing Seams Which Pull or Stretch • reinforce seams with a ribbon (e.g. shoulder ribbon) before sewing • different stretch ribbons are available. These can be sewn to give more security to the seam