The design must be programmed correctly for metallic thread. It is
essential that your puncher know the type and size of metallic thread,
along with the fabric it will be stitched on. Consequently, stitch length and
density must be adjusted accordingly.

Be aware of the design limitations for metallic thread. It is advisable that
letters under 5 mm in height should only be stitched with FS #50 metallic.

When stitching with metallic on any machine, make certain that your
equipment is in excellent running condition. Also, the thread guides
should be free of rough spots.When switching to metallic from another
thread type, start with a new needle. The bobbin cases should also be
checked and cleaned.

The size of the needle is very important for high productivity.
FS #50 75/11 FS #30 90/14 Supertwist #30 90/14
FS #40 80/12 FS #20 100/16

Metallic is less pliable, therefore, tensions should be readjusted. A
sample run is recommended on the production fabric before attempting
to run the production order. Metallic thread will usually run as well as
rayon, provided that tensions are looser than normal.
Fabric type and weight, along with the execution of the
design, will determine how loose or tight the tensions
should be set.

The thinnest bobbin thread is also recommended.

A soft material and backing should be used whenever
possible. Hard or stiff materials can be too abrasive to the
metallic thread.

Machine speed may need to be adjusted. A slower speed will facilitate the
production of more difficult designs.