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11th September 11, 08:02 AM
#1
 Originally Posted by MacMillan's son
They advertise as Poly Viscose, and I have not done, nor seen, any tests to prove them to be otherwise. <snip>
I emailed the Scotland Kilt Co a while back and they said that the material is 60% polyester and 40% acetate. Those numbers might not be exactly correct but they are NOT poly-viscose.
- Justitia et fortitudo invincibilia sunt
- An t'arm breac dearg
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11th September 11, 05:36 PM
#2
 Originally Posted by CMcG
I emailed the Scotland Kilt Co a while back and they said that the material is 60% polyester and 40% acetate. Those numbers might not be exactly correct but they are NOT poly-viscose.
Not that it matters all that much but, according to this source (http://www.wisegeek.com/what-is-viscose.htm) "Viscose" is Cellulose Acetate. Also, according to another page of this same source ( http://www.wisegeek.com/topics/viscose.htm ) Viscose is not a fabric in itself, but rather, a material that is used as the base for making other materials...like Rayon.
So, according to how I understand this source, Poly Viscose may be synonymous with Poly Cellulose Acetate. I may not have that right, but that's what I get from it. Therefore, we may just have an issue of different ways of saying the same thing.
Again, not that it matters all that much, but the fact that numerous businesses openly market the material in their kilts as Poly Viscose makes me think that perhaps they really are. Albeit, a courser version than that produced and marketed by Marton Mills. I'm not a fabric specialist at all, but perhaps PV does not lend itself to larger thread diameters, and when it gets too large, 16 oz for instance, it becomes noticeably stiffer ? Maybe that is why Marton Mills only makes it in a lighter weight? Just speculation of course.
However, I'm not sure why we would assume that Marton Mills is the true and accurate version and anything else must be falsely advertised? Well, actually, I have a suspicion as to why we would, but that's a whole other issue. 
Cordially,
Brooke
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11th September 11, 09:27 PM
#3
Hi All,
Thanks to everyone for giving me a ton of good information and helping me get this ball rolling!
I guess to toss in my thoughts on the poly-viscose discussion above. Chemically speaking it is a cellulose-based polymer fibre that's treated with acetate to ensure cohesion (if I'm remembering my organic polymer chemistry right, I'll caveat it by saying I don't normally do that kind of chemistry). From a materials view, I think the viscose term is introduced to reflect the manufacturing process of the fibre. My understanding is that a chemical slurry is made and squeezed out through a tiny pin-hole to spin the fibre (think meat pasta press). So I think Brooke is right on in saying a viscose isn't a fabric. it's just a special way f making a fibre. That's my understanding anyway, and I haven't done too extensive research into the exact process or chemistry, just a bit of passing reading.
I guess the end result is a decent feeling kilt that I won't mind beating around the pubs or hiking trails in =)
Thanks again everyone!!
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12th September 11, 02:02 AM
#4
 Originally Posted by MacMillan's son
<snip>
However, I'm not sure why we would assume that Marton Mills is the true and accurate version and anything else must be falsely advertised? Well, actually, I have a suspicion as to why we would, but that's a whole other issue.
Cordially,
Brooke
I have nothing against the people who market those 16 oz "PV" kilts and have products from several of the vendors listed earlier in this thread.
What I'm trying to clarify for Newfoundlander is that the feel of Marton Mills poly viscose and poly viscose kilts made by HoS is different. There has been a fair amount of previous discussion on this board about the difference... perhaps Rocky R and Steve Ashton might be able to clarify it better than I.
And while we're quoting sources, here's two that say acetate and viscose are related but not the same:
"VISCOSE cellulose is treated with caustic soda and carbon bisulphide, converting it into a gold liquid about the color and consistency of honey, called viscose. Viscose is forced through fine holes in end of a nozzle, called a spinnerette, directly into a chemical bath where it hardens into fine strands. When washed and bleached these strands become rayon yarn.
...
ACETATE cellulose is combined with acetic acid [refined vinegar] making a substance called cellulose acetate. This is dissolved in acetone, then forced through the holes in a spinnerette directly into a tube. In the tube, warm air evaporates the acetone and the cellulose acetate emerges as dry filaments."
http://www.fabrics.net/miracle-fibers-rayon-and-nylon/
"Viscose (also known as viscose rayon) is a group of fabrics and yarns produced by extruding cellulose solution through holes in a spinneret, then coagulating the resulting filaments in an acid (the viscose process). There are several different sort of viscose fibres made by modifying this process, eg crimped, hollow, high tenacity (stronger).
So viscose rayon is a particular type of cellulose fibre made using the viscose process, and it's also often called just 'viscose' or just 'rayon', because it's the commonest kind of rayon. Other kinds of rayon are cuprammonium rayon and acetate rayon."
http://hiraeth.com/ytg/qanda/answers/rayon.htm
- Justitia et fortitudo invincibilia sunt
- An t'arm breac dearg
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