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At a speed of up to 700 m/min, the yarn is pulled off the packages and entered into the heat setting process. There are two basic ways of transportation of the yarn through the process. One way is to place the yarn in coils or a "figure 8 pattern on a belt or to wrap it onto ropes arranged as a polygon in order to convey it through the process.
So that practical clothing may be described conveniently by a range of small integers, the unit of thermal resistance, to be called the “tog”, is the resistance that will maintain a temperature difference of 0.1°C. with a flux of 1 watt per square metre, or in more practical terms, 10°C. with a flux of 1 watt per square decimetre.
They are temperature-resistant up to 120 °C (248 °F). Bonded polyester sewing threads are tough, coated with abrasion resistance, rot proofing, and have exceptional tensile strength for lower temperatures but heavier-duty sewing operations. They are temperature-resistant up to 120 °C (248 °F).
Given the linear density and weight the yarn length can be calculated; for example: 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)
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]
Special blankets known as baby blankets are used to protect infants from the cold. Small children (and some adults) may also use a blanket as a comfort object. [12] Blankets may be spread on the ground for a picnic or where people want to sit in a grassy or muddy area without soiling their clothing. Temporary blankets have been designed for ...
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Knitters and crocheters rewind the hanks into balls or centre-pull skeins prior to use, in order to prevent the yarn from becoming tangled. [2] In the meat industry, a sheep, lamb or hog sausage casing is sold by the hank. This unit of measure equals 100 yards (91 m).