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l/m = 1693 × l m /Nec × m/kg, where l/m is the yarn length in metres, l m /Nec is the English cotton count and m/kg is the yarn weight in kilograms. The following length units are defined. Bundle: usually 10 lb (4.5 kg) Thread: a length of 54 in (1.4 m)—the circumference of a warp beam; Lea: 120 yd (110 m) Hank: a length of 7 leas or 840 yd ...
For better accuracy, measure the wraps at the center of your yarn sample. The number of wraps will act as a gauge to assess the thickness of unmarked yarn; for example 12 wraps per inch is 12 WPI, and is used to calculate how much yarn is required for various articles, [3] so that 12 is equivalent to 8 ply (worsted weight, medium weight) yarn. [3]
Yarn size [ edit ] Depending on the exact yarn weight and the gauge of the knitter or crocheter and how tight or loose the yarn is held, the gauge listed below can vary.The type of yarn can also affect the look of the item, so if it’s thicker yarn the item will look bulkier compared to yarn that is thinner.
The amount of twist in a yarn helps to define the style of yarn – a yarn with a lot of air such as a woollen-spun yarn will have much less twist than a yarn with little air such as a worsted-spun yarn. The amount of twist also affects the yarn in terms of stretchiness, strength, halo, and many other attributes.
Yarn weight is a factor; thicker yarns with less loft overall produce larger stitches than thinner yarns (reducing the number of stitches per width and length). Larger knitting needles also produce larger stitches, giving fewer stitches and rows per inch. Changing needle size is the best way to control one's own gauge for a given pattern and yarn.
Fibers to fabric conversion lead to many mechanical tensions and forces during manufacturing, which includes following steps for fibre to yarn conversion with spinning then fabric with weaving, and knitting. When the products are immersed in water, the water acts as a relaxing medium and all stresses and strains get relaxed and try to come back ...
The S numbers originated in England, [4] where the worsted spinning process was invented and arose from the worsted yarn count system for stating the fineness of yarn. The worsted count (also known as the Bradford count) was the number of 560-yard (510 m) lengths (hanks) of worsted yarn that 1 pound (0.45 kg) of wool yields. [5]
Cotton Counts: Refers to the thickness of the cotton yarn where 840 yards of yarns weighs 1 pound (0.45 kg). 10-count cotton means that 8,400 yards (7,700 m) of yarn weighs 1 pound (0.45 kg). This is coarser than 40-count cotton where 40x840 yards are needed.