On Thu 12 Jun 2003 (21:59:43), [EMAIL PROTECTED] wrote: >Brenda: > >Thanks! > >I think I'm getting your book this weekend. It might take it awhile >to get to me. I'm ordering it from Britain because it's cheaper - >which is not >unusual. > >In case your book doesn't say, I haev one question. > >I know thread sizing is a minefield. I studied carefully the >discussions on the internet, made my own charts - and ended up with >three different versions of "weight", and two different versions of >"cotton count"! > >You never actually answered my question about what thread szing system >is used to rate ordinary sewing thread at 60, or 60/2. All kinds of >people are telling me that, but noone ever says by what system, and I >cannot extract further explanation from them! From my research I >have a couple of educated guesses but they are not more than close - eg >ordinary sewing thread would be closer to 70 than 60, and that sort of >thing.
Here in UK ordinary sewing thread is Sylko 50 (50/3 cotton count) or one of the polyester threads such as Gutermann 100% polyester, Amman Drima or DMC Tous Textiles all of which are of similar thickness to Sylko. 50/3 means that it's three plies of 50 CC. 60/2 is two plies of 60 CC. Think of the / as being a maths division sign and you'll see that 50/3 = 16.67 CC single ply but 60/2 = 20 CC single ply so the 50/3 is quite a bit thicker than 60/2. >It should be a very easy question. Clearly everyone else knows what >they are talking about when they cite this information to me! And >since everyone refers to it, I really need to know what they are >talking about. What thread sizing system assigns "sewing thread" a size >of 60? > >Please don't tell me the size of ordinary sewing thread in wraps. I >won't know how what thread you measured compares with this size 60 >standard - it might not be the kind of generic sewing thread that has >size "60"! > Most manufacturers use the cotton count; though Metric number is becoming more common. Unfortunately they don't often label the spools with the information. Different threads made by different manufacturers, spun tighter or looser and with different grades of cotton fibres all affect the finished product. It's because there are so many variables that I originally put the comparison tables together. >Reasonably, I could take my coats and clarks ordinary sewing thread, >the tex number of which is I think 27, and count how many wraps to a >centimeter - but I won't know if this thread is supposed to have a size >of 60! You can make a wrapping of your thread to see what it compares to. Coats and Clarks sounds like an old thread. Nowadays it's marketed (in UK) as Coats or as Anchor by the parent company Amman. The company mergers and brand changes are way beyond me. Your thread is Tex 27. The only cotton I can find with Tex as well as CC is cotona, and cotona 50 is tex 24 so that's a bit finer than your thread. > >You have a table in your book somewhere that equates wraps to tex >numbers - >right? No! The tex number and the CC or Nm can't be equated to each other as Tex is a direct measurement, the higher the number the thicker the thread, but CC and Nm are indirect measurements, the higher the number the finer the thread. CC = Nm x 0.59 or Nm = CC x 1.69 The tables in my book relate to the number of wraps/cm that I each thread - an indirect measurement as the finer the thread the more wraps ot takes to cover 1cm. > > Brenda http://www.argonet.co.uk/users/paternoster/ Supporting teh [EMAIL PROTECTED] campaign -- Brenda & Terry Paternoster http://users.argonet.co.uk/users/paternoster/ Supporting the [EMAIL PROTECTED] campaign - To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace [EMAIL PROTECTED]
