FAQs
Does
your company have ISO 9000 & QS-9000 certification?
Are there any carcinogenic materials
in your threads?
What kind of thread should I use
for a garment that is to be washed and bleached, for example by
enzymes or acid?
How can we convert the thicket sizes
between Hong Kong and the US?
What is Coats' standard of color
fastness to washing?
Does your company have any commitment
to equal employment opportunity, the environment, or workplace health
and safety?
Coats is a worldwide organization,
how can you standardize all your products and quality levels in
different countries?
Can Coats provide us with technical
support?
What is Sewing Thread?
What is tex size number?
What is linear density?
What is grey thread?
What is cotton count?
What is denier?
What is linen count?
What is worsted count?
What is metric count?
What is yarn number?
What is yarn numbering system?
What is indirect yarn numbering system?
What are conversion factors for various
numbering systems?
Does
your company have ISO 9000 & QS-9000 certification?
Yes. Coats China is the only thread manufacturing company
in China to obtain ISO 9002 & QS-9000 certification in both
Production and Service. This demonstrates Coats' commitment to providing
better quality products to our customers.
Are
there any carcinogenic materials in your threads?
No. We have obtained the Oko-Tex Standard 100 Certificate in Product
Class I for babies, for all our dyed sewing and embroidery thread
made of polyester, rayon, nylon and polyester-cotton, for use in
apparel, footwear and related industries. This certificate is a
normative document, published by the International Association for
Research and Testing in the field of Textile Ecology.
What
kind of thread should I use for a garment that is to be washed and
bleached, for example by enzymes or acid?
We recommend our Astra Rugged Heavy Duty Polyester Thread for denim.
It is a polyester thread that is specially designed for high performance
sewing. It is manufactured using imported high tenacity stabilized
polyester fibre. It has many outstanding properties which make it
superior to other spun polyester threads: it is resistant to perspiration
and chemical attack, it is suitable for tropical conditions, and
it provides high colour fastness in all normal conditions of use.
How
can we convert the thicket sizes between Hong Kong and the US?
We have a ticket card describing different ticketing systems in
use. Please contact our local sales team.
What
is Coats' standard of color fastness to washing?
Our standard is ISO 105-C03. For bleaching and heat exposure of
thread colours beyond test conditions, fastness may vary. If you
have any queries, please contact our local technical advisor.
Does
your company have any commitment to equal employment opportunity,
the environment, or workplace health and safety?
Coats has policies on Fair Employment Practices, the Worldwide Environment,
and Health and Safety, and as a company we are very concerned about
these issues. These policies are formulated by our board and implemented
throughout the world.
Coats
is a worldwide organization, how can you standardize all your products
and quality levels in different countries?
For colour standardization, we have a worldwide shade reference
called the Global Colour Reference (GCR). Our technical service
centres in the UK and US provide new products and technical information,
and standardize the information that each supplying company receives.
With regard to quality standardization, we have quality meetings
in order to provide stable, quality products.
Can
Coats provide us with technical support?
Yes. If you have questions about the application of sewing thread,
our technical manager is always available to provide technical service,
support, and seminars for you.
What
is Sewing Thread?
Sewing thread ¡V a small diameter yarn or twisted strand, usually
treated with a surface coating or lubricant or both , intended to
be used to stitch one or more pieces of material or an object to
a material.
What
is tex size number?
Tex size number ¡V the number assignes to a sewing thread to designate
its approximate linear density. The tex number is an indicator of
the minimum amount of fibre present. The smaller the number, the
finer the thread ( lesser amount of fibre); and the larger the number
, the coarser the thread (greater amount of fibre)
What
is linear density?
Linear density ¡V mass per unit length; the quotient obtained by
dividing the mass of a fibre or yarn by its length.
What
is grey thread?
Grey thread ¡V unfinished sewing thread after final twisting or an
equivalent step in a processing sequence such as extruding, texturing
or braiding.
What
is cotton count?
Cotton count ¡V the number of 840 yard lenghts of yarn per pound;
an indirect yarn numbering system generally used for yarns/threads
spun on the cotton system.
What
is denier?
Denier ¡V a direct yarn numbering system for expressing linear density,
equal to the mass in grams per 9000m yarn. Filament, fibre or other
textile strand.
What
is linen count?
Linen count ¡V the number of 300 yard lenghts of yarn per pound;
an indirect yarn numbering system.
What
is worsted count?
Worsted count ¡V the number of 560 yard lenghts of yarn per pound;
an indirect yarn numbering system generally used for yarns spun
on the worsted system.
What
is metric count?
Metric count ¡V the number of metres of yarn per gram; an indirect
yarnnumbering system.
What
is yarn number?
Yarn number ¡V a measure of the fineness or size of a yarn exressed
either as ¡¥mass per unit length¡¦
Or length per unit mass depending upon the yarn numbering system
used.
What
is yarn numbering system?
Yarn numbering system ¡V a system expressing the size of a yarn as
a relation ship between its length and associated mass.
What
is indirect yarn numbering system?
Indirect yarn numbering system ¡V a system that expresses yarn number
in length per unit mass or reciprocal of linear density.
What
are conversion factors for various numbering systems?
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