Thread. Bernina 2/06 1

BERNINA

®

Embroidery Module/Machine

Mastering

Your

BERNINA

®

Thread

Poor quality or the wrong type of thread can cause poor stitches on any machine. Thread passes through the eye of the needle approximately 37 times in a “seesaw” action before it forms a single stitch. Poor quality thread results in crooked and looped stitches, uneven fills, misaligned outlines, frayed thread, and/or needle breakage. To achieve quality stitches, an embroidery machine needs five things: correct thread, correct stabilizer, correct hooping, correct needle, and properly adjusted thread tensions.

Several factors such as the fiber, twist, ply, finish, and size of thread must be considered for use with today’s fabrics for fine stitches.

Staple – refers to the length of fibers used to twist together to form a single ply. Domestic thread fiber lengths are usually 1½” to 2½” long while European threads use 5½” to 6½” lengths.

Ply – number of strands twisted together to make a single thread.

Roll – the tendency of thread to roll to the right or left during stitching, causing the stitch to appear slightly crooked. Poor quality threads are more likely to roll.

Twist – the crimping of fibers which causes them to interlock firmly into a single ply. Thread should not untwist during stitching. This will cause skipped stitches, thread breakage, crooked stitches, and weak spots in seams.

Right twist – most American threads are twisted to the right, causing some rolling. This gives average stitch quality.

Left twist – Most commercial and imported threads are twisted to the left, giving better than average stitch quality. Left twist resists rolling and makes a larger loop for the hook point to enter, reducing skipped stitches.

Notes

M

ASTERING

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OUR

BERNINA ® E

MBROIDERY

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ODULE

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ACHINE

2/06

©2006 BERNINA® of America, Inc. Permission to copy granted only to Authorized BERNINA ® Dealers

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