It appears by looking at the Patons link I attached, that this yarn is still available. If you don't know where to find it in your area, contact Patons and they would be able to direct you to an online or retail store in your area. (at the top of the page of the Patons link, is a Store Locator tab that you could also click on).
Weight: Bulky / 12 ply (7 wpi) Gauge: 16.0 to 18.0 sts = 4 inches US 9 - 5.5mm
I searched and was unable to find Patons Camelot Wool. The best I can figure out is that you might be referring to Patons Kroy Socks FX in Camelot color. So, going by that thought, it would be a sock-weight yarn; or category 1 fingering weight yarn. Therefore having a ply of 4. If I've totally misunderstood what yarn you're asking about, I've attached some URLs which might help you to translate the information you have on the yarnband into ply.
I belive it's 3 or 4 ply. If you have the label you can always match the gague or stitch count to the pattern you're using.
Patons Patex Boucle is a worsted weight yarn, typically classified as a 4-ply yarn. Its boucle texture creates a unique, textured fabric, making it popular for various knitting and crochet projects. Always check the specific product details for any variations, as yarn specifications can sometimes differ slightly.
Patons Shadow Tweed wool is a medium weight yarn that is classified as a 4-ply or worsted weight yarn. This yarn typically has a soft texture and is suitable for a variety of knitting and crochet projects, including garments and accessories. The tweed effect adds visual interest, making it a popular choice for textured patterns.
I have 16 balls of Azalea patonised knitting and crochet wool here and when I untwist it it becomes 2 strands....which in reading some of the other things about wool its actually 4 ply....now I am looking for a fairly plain simple knitting pattern to use it on.
The difference between 8-ply and 4-ply wool, can depend on the weight of the plies. Some 3-ply yarns have heavy weight (fatter) plies, which knit up heavy worsted, where 2-ply lace weight yarn plies are much lighter (skinnier) plies that knit up very light/lacy/small.If I were to guess, the 8-ply in question, may have smaller plies than the 4-ply. I think if you double the 4-ply, that would be too much. You should try a gauge swatch using the 4-ply singularly, and maybe adust the needle size.
See http://www.YarnStandards.com for how the categories of yarn weights compare in terms of relative gauges and needle sizes used to achieve those gauges. Worsted weight (Category 4 - Medium) is the yarn commonly used to knit sweaters in the U.S. U.K. knitters often use a slightly thinner yarn called "DK" (double knitting), which falls into Category 3 - Light. Worsted weight yarn is typically knit at 20 sts/4 in or 10 cm on US 7/4.5mm needles, whereas DK weight yarn is typically knit at 22 sts/4 inches or 10 cm on US 5/3.75mm needles. Some countries still use the old 2-ply, 4-ply, 6-ply, 8-ply classification to describe yarns, where 4-ply is fingering weight, 6-ply is sport weight, 8-ply is DK, and 10-ply is worsted weight. One problem with that system of classification is that it assumes a standard ply weight. There are many yarns these days (particularly in the Bulky and Super Bulky categories 5 and 6) that are single-ply yarns which knit at various gauges on various needle sizes.
1 ply, 2 ply,3 ply and i think 4 ply not sure. and there is the wash stuff, Cotton, normal, extra strength and a few others
The load range indicates the ply rating of the tire or the number of plys under the tread. A = 2 ply B = 4 ply C = 6 ply D = 8 ply E = 10 ply F = 12 ply G = 14 ply H = 16 ply J = 18 ply L = 20 ply M = 22 ply N = 24 ply This has a direct relation to the Load Index which tells you the weight the tire can carry. The more plys the more weight the tire can carry.
The primary difference between 4-ply and 6-ply tires lies in their construction and load-carrying capacity. A 4-ply tire has four layers of fabric, providing moderate strength and flexibility, making it suitable for light-duty vehicles or general use. In contrast, a 6-ply tire has six layers, offering greater durability, load capacity, and resistance to punctures, making it ideal for heavier vehicles or off-road applications. Consequently, 6-ply tires are generally more robust and better suited for demanding conditions compared to 4-ply tires.
Your question doesn't make sense. For example: 4-ply yarn is 4 singles plied (twisted and set) together.Lace weight yarn is usually single or 2-ply.