SINGER 319K - Manual (Page 47)

45
TWIN NEEDLE AIR TUCKING
Use: All-purpose throat plate
All-purpose presser foot
Twin Needles
Central needle position
0 bight
12 to 25 stitch
Simple air tucking is effective as an accent
when used to carry out a design or for straight
or diagonal lines of stitching. The two threads
carried by the twin needles interlock with a
single bobbin thread to form air tucking. When
the needle thread tension is increased, the
fabric between the lines of stitching is raised,
creating air tucking.
Select thread of a size appropriate for the
needle being used as well as a thread appro­
priate for the fabric. The Fabric, Thread,
Needle and Stitch Length Chart on page 16
is a helpful guide.
Square corners are made by turning twice
while the needles are out of the fabric.
Stitch until the inside needle has reached the
corner. Raise presser foot when needles are
out of the fabric. Make a one-eighth turn of
the fabric, allowing the inside needle to enter
Fig. 75. Twin Needle Air Tucking
for the second time into the corner stitch
penetration. Turn hand wheel until the
needles go down and up again and rise out of
the fabric.
Make the second eighth turn of the fabric.
Allow the inside needle to enter for the third
time into the corner stitch penetration. Con­
tinue to stitch in a straight line. When design
is completed draw threads to the underside
and tie.
When using parallel lines of air tucking,
spacing should be such that foot does not ride
over a previously stitched row.