Operation Manual

22
Preparation - Sewing
Important Facts about Sewing Needles
The thread is chosen according to use. For a perfect sewing result, thread and
fabric quality play an important role. It is recommended to use quality brands.
Cotton thread
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cotton thread has the advantage of being a natural fiber and therefore is
especially suitable for sewing cotton fabrics
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if cotton thread is mercerized, it has a slight sheen
Polyester thread
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it has a high tensile strength and is particularly colorfast
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polyester thread is more flexible and is recommended where a strong and
elastic seam is required
Thread
Needles, Threads
Correct needle/thread combination
When sewing, the thread should travel smoothly down the long groove on the
front of the needle.
Too thin thread or too thick needle
The thread has too much clearance in the groove. Skipped stitches and
damage to the thread can occur.
Too thick thread or too fine needle
The thread rubs on the edges of the groove and can get jammed. This can
break the thread.
Needle, Thread and Fabric
Care must be taken when choosing needle and thread.
The correct needle size depends on the selected thread and fabric. The fabric
weight and type determine the thread weight, needle size and point form.
Checking the needle condition
The needle condition should be checked and the needle
replaced regularly. A defective needle not only damages the
fabric but also the sewing computer.
Follow these guidelines:
Always replace the needle when starting a new sewing project.
Fabric/Thread Needle size
Fine fabrics:
Fine thread (darning thread, embroidery thread) 70-75
Medium weight fabrics:
Normal thread 80-90
Heavy weight fabrics: 100, 110, 120
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