SINGER 1050 - Manual (Page 10)

Needle-Fabric Combinations
Be sure to check the Fabric, Thread and Needle Table on
page 12 before you begin to sew. The importance of selecting
the correct size, as well as the correct type needle for the
fabric and thread you are using, cannot be emphasized too
greatly.
Correct needle selection is closely related to stitch quality
and appearance. Damaged fabric is almost always caused bya
needle that is bent, burred, or that is an inappropriate style
for the fabric and thread you are using.
The three types of needles most commonly used by sewers are
the regular, ball point, and wedge. To obtain good results, the
correct size and type of needle for the fabric and thread you
are using, must be chosen.
The regular needle, Style 2020, which is called a set-point
type needle, is for stitching woven fabrics such as denim,
gabardine, and drapery coating.
Ball point needles, Style 2045, are appropriate for stitching
most knits, lingerie, lace, mesh, stretch fabrics, and elastic
materials. The special rounded tip of the ball point needle
ensures gentle separation of the fabric yarns.
2020
2045
2032
The wedge needle. Style 2032, is the best for stitching leather,
vinyl, and dense materials. It is designed to cut through with a
minimum of friction and also shape the punctures to ensure a
desired appearance.