SINGER 1425 - Manual (Page 20)

To select the correct needle and thread for your fabric, first refer
to the Fabric Weight Table to determine the weight and type of
the material you are using.
Next refer to the Fabric, Thread and Needle Table.
Find the fabric you are using in Type of Fabric column at left.
(Silk, rayon, etc.) Then locate the fabric weight column (filmy,
sheer, etc.) for your>fabric at top of table. Read across from
Type of Fabric column to correct weight of fabric column. There,
the correct thread and needle choice for your fabric will be
found.
Example: If you are sewing a medium weight wool, find wool in
Type of Fabric column. Read across to Medium (weight) column
and you will see that a medium silk or mercerized thread and a
size 2020-14 needle for woven fabrics or a size 2045-14 needle
for knit fabrics are to be used.
Medium Heavy Very Heavy
Threads Needles Threads Needles Threads Needles
Medium Silk
Medium Mercerized
2020-11
Medium Synthetic
Medium Mercerized
2020-11
Heavy Synthetic
Heavy Mercerized
2020-14
Medium Cotton
Medium Mercerized
2020-14
Woven
2045-14
Kfilt
Heavy Cotton
Heavy Mercerized
2020-16
Heavy Cotton
Heavy Mercerized
2020-18
Medium Silk
Medium Mercerized
2020-14
Woven
2045-14
Heavy Mercerized 2020-16 Heavy Mercerized 2020-16
Medium Synthetic
iliiilii '
Woven
Iliiilii
Heavy Synthetic
2020-16
Woven
2045-16
Knit
Medium Synthetic
2020-14
Woven
2045-14
Knit
Heavy Synthetic
2020-16
Woven
2045-16
Knit
Medium Mercerized
Medium Synthetic
2032-14
Heavy Mercerized
Heavy Synthetic
2032-16
Heavy Mercerized
Heavy Synthetic
2032-18
Medium Mercerized
Medium Synthetic
2020-11
Medium Mercerized
Medium Synthetic
2020-14
Heavy Mercerized
Heavy Synthetic
2020-16
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