Bernina L 890, Workbook

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B E R N I N A O V E R L O C K E R W O R K B O O K
REFERENCE - OVERLOCKER THREADS
Overlocker Threads
Overlocker threads are usually polyester and are finer (lighter weight) than many sewing machine threads to avoid thread
build-up and excessive bulk in seams. It is important that the thread is smooth and without variations in diameter as it needs
to feed smoothly through many thread guides for good stitch formation.
You also want a good-quality thread – such as Mettler Seracor – that is not “fuzzy” and does not leave excessive lint in the
lower part of your overlocker. Overlocker threads are sold on larger spools for economy and convenience; regular spools
of thread may be used but will not last very long when forming overlock stitches. Along with overlocker thread, there are
applications that call for specialty and decorative threads.
Listed below are some of these threads commonly used in the overlocker:
• Texturized Nylon Thread – such as YLI Woolly Nylon, Maxi-Lock Stretch or Wonderfil SoftLoc—A very elastic thread with
excellent coverage; perfect for rolled edges and knit seams.
• Topstitching Thread – such as YLI Jeans Stitch, Mettler Cordonnet, Aurifil 12wt Cotton and Wonderfil Spagetti – this
heavy thread is used for decorative stitching (flatlocked seams and overcast edges). Also nice for cover and chain stitching.
Topstitch thread can be polyester or cotton.
• Rayon Decorative Threads – such as YLI Pearl Crown Rayon & YLI Designer 6 – shiny threads for decorative applications.
Pearl Crown Rayon is twisted, while Designer 6 is untwisted. Available in solid and variegated colors.
• Metallic Decorative Threads – add a bit of glitz to seams and edgings.
• Decorative Sewing Threads – sewing machine threads can also be used in the overlocker, and are particularly effective when
several are used together as one thread.
• TIP: Avoid using threads with heavy wax coatings in the L 850 air threading system. Coated or waxed threads may lose
some of their coating in the air threader pipes, resulting in permanent blocking of the pipes. Repair by a BERNINA dealer
will be necessary.