Cotton yarn strength index

Yarn strength is an indicator of the tensile strength of the yarn and has absolute strength and relative strength. When comparing the strength of yarns of different linear density, the relative strength is applied.

Absolute strength (breaking strength): The external force that the yarn can withstand when it is stretched to break. There are: 1 single yarn strength; 2 strand strength; 3 crepe strength, etc., the unit is Newton, Cree, kilogram force or pound force.

The relative strengths are: 1 breaking strength; 2 specific strength; 3 breaking length; 4 quality indicators.

Breaking strength: The external force that can be withstood by the cross-sectional area of ​​the yarn when the yarn is stretched to break, in units of N/mm2.

Specific strength: The external force that the unit linear density yarn can withstand when the yarn is stretched to break, the unit is N/tex.

Break length: The length of the yarn weight equal to its breaking strength, in kilometers. In the Turks series, it is equal to the ratio of the strength (gram force) of a single yarn or strand to its tex, ie the specific strength;

Quality indicator: an indicator of the relative strength of the crepe. When the yarn linear density is in English, it is equal to the product of the twist strength (pound force) and its single yarn inch number; when the yarn linear density is made by the Turks, it is equal to the twist strength (kg force) and its single yarn. 1,000 times the business of the kees.