| J |
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| Jet
Clips® Mfg. by Jet-Clip Co.: Clips used in packaging of
shirts, slacks, jeans, blouses, knit slacks,
infants wear, knits, jackets, and heavy weight garments. (Registered
trademark of Jet-Clip.) |
|
| K |
|
| Kevlar®:
Spun thread of aramid fiber from DuPont. (Registered trademark of
DuPont.) Kevlar has very good heat resistant properties and
exceptionally high tensile strength. Kevlar is used in protective
clothing used by fire fighters and police. Kevlar is not recommended
for applications that required prolonged exposure to very high
temperatures. |
|
| King
Spool: A thread cone that has a vertical tube with a horizontal
base that is used for filament polyester and nylon threads and
glaced cotton threads. King spools prevent the thread from sloughing
under the cone base. |
|
| Knits:
Fabrics that are constructed by interlooping adjacent yarns to
form the fabric. Some common types of knit fabrics include: jersey,
ribbed, tricot. |
|
| Knots:
Used to join ends of yarn or thread together. Most textile
companies used "weavers" knots, which are only three
thicknesses. On most of A&E threads, we have replaced knots with
air spices which are less than two thickness. Most knots will cause
the thread to break but most air splices will sew through the needle
without breaking. |
|
| L |
|
| Lapping:
A process used in
the manufacturing of 100% cotton yarn where a number of ends of
sliver are made into a lap or sheet for the combing process. |
|
| Latch
Tracking: See
chain tacking. |
|
| Lockstitch
(301 Stitch): A
stitch that is formed with a needle thread and a bobbin
thread that are inter-locked in the center of the seam being sewn.
Even though the same amounts of needle and bobbin thread are
consumed, the needle thread requires 5 to 7 times more tension than
the bobbin thread. Some of the advantages of using a lockstitch in a
seam include: the stitch is reversible, produces the tightest of all
seams, uses the least amount of thread, can be used on
multi-directional automated sewing machines, has a low seam profile. |
|
| Loop
Strength: The strength when one strand of thread is looped
with another strand and then broken. This strength test gives an
indication of the brittleness of the fiber being tested. Most
polyester sewing threads will have a loop strength of approximately
1.5 times the single-end breaking strength. |
|
| Looper:
A stitch-forming
device used on chainstitch, overedge
and coverstitch sewing machines to form a
stitch. |
|
| Looper
Thread: Refers to the bottom thread used on chainstitch
and coverstitch machines; and the threads that
cover the edge of an overedge seam. Looper
threads feed directly off the cone into the sewing machine
eliminating bobbin changes. |
|
| Lubricity:
Refers to the
frictional characteristics of thread as it passes through the sewing
machine and into the seam. Good lubricity characteristics will
minimize thread breakage and enhance sewability. A thread with a
fibrous or fuzzy surface will have superior lubricity
characteristics. |
|
| Lyocell®:
Refers to a
regenerated cellulosic fiber developed for sewing Tencel®
fabrics that are usually overdyed and enzyme washed. |
|
