Yarn Numbering System free essay sample

Yarn numbering systems Tex-System Swicofil indicates the counts of their yarns by means of the Tex-system. Tex Units Term Definition Basic Tex Unit [tex] Mass of yarn in grams per 1000 meters length Decimal fraction Mass of yarn in grams per 10000 meters length Decitex [dtex] 1 g / 10000 m = 1/10 tex Decitex is the count grading for filament and spinning yarns recognized by all international bodies in the man-made fibres industry. Decimal multiple Mass in kilograms per 1000 meters length. Kilotex [ktex] 1 kg / 1000 m = 1000 tex) Kilotex is used to state the counts of spinning tow and similar semi-finished and finished products. Other numbering Systems Count denier [den] Mass of yarn in grams for length of 9000 meters Metric yarns number [Nm] Length in meters per 1 gram of mass English cotton yarn number [Ne or ECC)] Number of 840 yards strands per 1 English pound of mass Wool runs Number of 1600 yards strands per 1 English pound of mass Wool, worsted (NeK) Number of 560 yards strands per 1 English pound of mass Wool, woolen measure (NeS) Number of 256 yards strands per 1 English pound of mass Linen Count (NeL or Lea) Number of 300 yards strands per 1 English pound of mass Spun Silk Number of 840 yards strands per 1 English pound of mass An interactive Conversion table can be found here Worsted wool is nothing to do with worsted weight yarn. We will write a custom essay sample on Yarn Numbering System or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Worsted wool is wool which is carded and combed so that all the fibres are parallel. Woolen measure or Yorkshire wool is carded but not combed, so is a little rougher. Worsted wool is usually very fine and used for suits and fine fabric. Hand knitting yarn is usually woolen type yarn. When quoting wool some manufacturers specify worsted or woolen. Most do not! Conversion Formulas for the various numbering systems convert into known tex decitex (dtex) denier (den) Metric No. (Nm) English Cotton No. (Ne) tex 10 x tex 9 x tex 1000 tex 591 tex decitex (dtex) dtex 10 0. 9 x dtex 10000 dtex 5910 dtex denier (den) den 9 den 0. 9 9000 den 5314 den Metric No. (Nm) 1000 Nm 10000 Nm 9000 Nm 0. 59 x Nm English Cotton No. (Ne) 591 Ne 5910 Ne 5314 Ne Ne x 1. 69 [pic] Top of Form Yarn count conversion [pic] [pic] [pic] [pic] [pic] Bottom of Form Conversion Factors To Convert To Multiply by Length inches millimeters 25. 4 inches feet 0. 0833 feet inches 12* feet meters 0. 3048 feet yards 0. 3333 feet miles (U. S. statute) 0. 0001894 yards yards 3* yards miles (U. S. statute) 0. 005682 miles (U. S. statute) feet 5280* miles (U. S. statute) yards 1760* miles (U. S. statute) meters 1609 miles (U. S. statute) nautical miles 0. 868 meters feet 3. 281 meters yards 1. 094 meters miles (U. S. statute) 0. 0006214 nautical miles miles (U. S. statute) 1. 152 Area square inches square centimeters 6. 452 square inches square feet 0. 006944 square feet square inches 144* square feet squa re meters 0. 09290 square meters square feet 10. 76 square miles square yards 3,097,600* square yards square feet 9* Volume cubic inches cubic centimeters 16. 39 cubic inches cubic feet 0. 0005787 ubic feet cubic inches 1728* cubic feet cubic meters 0. 02832 cubic feet U. S. gallons 7. 481 cubic meters cubic feet 35. 31 liters quarts (U. S. liquid) 1. 057 quarts (U. S. liquid) liters 0. 9463 U. S. gallons barrels (petroleum) 0. 02381 U. S. gallons cubic feet 0. 1337 U. S. gallons Imperial gallons 0. 8327 barrels (petroleum) U. S. gallons 42* Imperial gallons U. S. gallons 1. 201 milliliters cubic centimeters 1* Time seconds minutes 0. 01667 seconds hours 0. 0002778 seconds days 0. 00001157 minutes seconds 60* minutes hours 0. 01667 minutes days 0. 0006944 hours seconds 3600* hours minutes 0* hours days 0. 04167 Mass or Weight pounds kilograms 0. 4536 pounds short tons 0. 0005* pounds long tons 0. 0004464 pounds metric tons 0. 0004536 tons (short) pounds 2000* tons (metric) pounds 22 05 tons (long) pounds 2240* kilograms pounds 2. 205 tonnes (metric tons) kilograms 1000* Energy calories Btu 0. 003968 calories joules 4. 187 Btu (British Thermal Units) calories 252. 0 Btu joules 1055 joules calories 0. 2388 joules Btu 0. 0009479 Velocity feet per second meters per second 0. 3048 feet per second miles per hour 0. 6818 feet per second knots 0. 5921 meters per second feet per second . 281 meters per second miles per hour 2. 237 miles per hour meters per second 0. 4470 miles per hour feet per second 1. 467 knots meters per second 0. 5148 knots miles per hour 1. 151 knots feet per second 1. 689 Density pounds per cubic foot grams per cubic centimeter 0. 01602 grams per cubic centimeter pounds per cubic foot 62. 42 grams per cubic centimeter kilograms per cubic meter 1000* kilograms per cubic meter grams per cubic centimeter 0. 001* Pressure pounds per square inch absolute (psia) kilonewtons per square meter (kN/m2) 6. 895 psia atmospheres 0. 0680 psia inches of water 2 7. 7 psia millimeters of mercury (torr) 51. 72 pounds per square inch gauge (psig) psia add 14. 70 millimeters of mercury (torr) psia 0. 01934 millimeters of mercury (torr) kN/m2 0. 1333 inches of water psia 0. 03614 kilograms per square centimeter millimeters of mercury (torr) 735. 6 inches of water kN/m2 0. 2491 kilograms per square centimeter atmospheres 0. 9678 atmospheres kN/m2 101. 3 kilograms per square centimeter psia 14. 22 atmospheres psia 14. 70 bars kN/m2 100* kilonewtons per square meter psia 0. 1450 bars atmospheres 0. 9869 kilonewtons per square meter atmospheres 0. 009869 bars ilograms per square centimeter 1. 020 Viscosity centipoises pounds per foot per second 0. 0006720 pounds per foot per second centipoises 1488 centipoises poises 0. 01* centipoises newton seconds per square meter 0. 001* poises grams per centimeter per second 1* grams per centimeter per second poises 1* newton seconds per square meter centipoises 1000* Thermal Conductivity Btu per hour per foot per oF watts per meter-Kelvin 1. 731 Btu per hour per foot per oF kilocalories per hour per meter per oC 1. 488 watts per meter-Kelvin Btu per hour per foot per oF 0. 5778 kilocalories per hour per meter per oC atts per meter-Kelvin 1. 163 kilocalories per hour per meter per oC Btu per hour per foot per oF 0. 6720 Heat Capacity Btu per pound per oF calories per gram per oC 1* Btu per pound per oF joules per kilogram-Kelvin 4187 joules per kilogram-Kelvin Btu per pound per oF 0. 0002388 calories per gram per oC Btu per pound per oF 1* Concentration (in water solution) parts per million (ppm) milligrams per liter 1* milligrams per liter ppm 1* milligrams per cubic meter grams per cubic centimeter 1 X 10-9 grams per cubic centimeter milligrams per cubic meter 1 X 109 grams per cubic centimeter pounds per cubic foot 2. 42 pounds per cubic foot grams per cubic centimeter 0. 01602 Temperature degrees Kelvin (oK) degrees Rankine (oR) 1. 8* degrees Rankine (oR) degrees Kelvin (oK) 0. 5556 d egrees centigrade (oC) degrees Fahrenheit (oF) first multiply by 1. 8, then add 32 degrees Fahrenheit (oF) degrees centigrade (oC) first subtract 32, then multiply by 0. 5556 degrees centigrade (oC) degrees Kelvin (oK) add 273. 2 degrees Fahrenheit (oF) degrees Rankine (oR) add 459. 7 Flow cubic feet per second U. S. gallons per minute 448. 9 U. S. gallons per minute cubic feet per second 0. 002228 [pic] [pic] [pic] |[pic] | |