The Thread Doctors Frequently Asked Questions...
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Question: What determines the type of thread
used?
Doctor: The type of material you
are sewing. For instance if you are sewing a material that
has elasticity you should use either a spun polyester or core thread.
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Question:What is the difference between Spun
Polyester and Core Threads?
Doctor: Spun Polyester is made from polyester
fibers which are spun into single yarns then plied into a thread.
Core threads are made from a polyester filament core around which
is wrapped a cotton or polyester cover. The cotton wrap provides
excellent sewability because it provides good needle heat resistance.
Note: The polyester core is stronger than the cotton wrap and spun
polyester.
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Question:What is the Tex size and how does
it help determine the size of the thread needed?
Doctor: Tex Size is a ticket size
of sewing thread that is based on the weight of 1000 meters of
natural thread. For example if the weight is 400 milligrams the
thread would be ticketed T-40. Note: The higher the Tex size the
heavier the sewing thread.
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Question:Do you carry threads that comply with
Government Specifications?
Doctor: We carry all Government Spec
threads in all sizes and provide Compliance Certificates.
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Question: When do I need Government
Spec. thread?
Doctor: You only need threads which
comply to Government Specs if you are doing government contracts
or the manufacturer specifies such.
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Question: Where do you manufacture your products?
Doctor: Most of our products are
Made in the USA although we do carry some imported products.
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Question: If I am doing work in a NAFTA or
CAFTA country where does the thread have to be manufactured?
Doctor: Made in USA thread can be
used in both programs while imported thread can be used only
in NAFTA programs.
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Question: What is organic thread and does
United carry it?
Doctor: Organic thread is 100% cotton
sewing thread made from cotton grown in pesticide free fields.
It is then processed in an environment free potentially hazardous
chemical. It is available in 3 sizes, T-35,T-70 and T-105.
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