What are the intrinsic quality indicators of cotton fiber? The intrinsic quality indicators of cotton fiber mainly include fiber length, fiber fineness, fiber strength and fiber maturity.
Fiber length refers to the distance between the ends of the straight fiber. Fiber lengths vary in their method of measurement. The length measured by the hand-to-measure method is called the length of the hand-pulling; the length measured by the combing method is called the length of the combing; the length measured by the cotton fiber photoelectric length meter is called the photoelectric length; and the length is measured by a large-capacity fiber analyzer. The length is called the span length, and the commonly used is 2.5% span length, referred to as 2.5% fiber span length. In general, the length of the combing is > the length of the hand pull, and the length of the optoelectronics is > 2.5%. The length of the cotton fiber is closely related to the yarn strength. When the yarn is spun with a long fiber, the length of the cohesion between the fibers is increased, so that the fiber is not easily slipped when the yarn is subjected to an external force, and the yarn strength is high.
Cotton fiber strength refers to the degree to which cotton fibers resist tensile fracture. When other indicators are basically the same, the fiber strength is positively correlated with the yarn and cloth quality. In the case of high spinning speed of modern spinning equipment, high fiber strength plays an important role in reducing the breakage rate in spinning and improving production efficiency.
Cotton fiber maturity is an important indicator of the degree of fiber wall thickening. In the case of similar fiber cell diameters, the thicker the cell wall, the higher the maturity. The fineness, micronaire value, strength and dyeing characteristics of cotton fiber are closely related to maturity.
High-quality raw cotton fiber requires that all major physical properties must be coordinated, that is, the length, strength, fineness and uniformity of the fibers should be matched with each other reasonably. The individual indicators do not represent good overall quality.
Fiber length refers to the distance between the ends of the straight fiber. Fiber lengths vary in their method of measurement. The length measured by the hand-to-measure method is called the length of the hand-pulling; the length measured by the combing method is called the length of the combing; the length measured by the cotton fiber photoelectric length meter is called the photoelectric length; and the length is measured by a large-capacity fiber analyzer. The length is called the span length, and the commonly used is 2.5% span length, referred to as 2.5% fiber span length. In general, the length of the combing is > the length of the hand pull, and the length of the optoelectronics is > 2.5%. The length of the cotton fiber is closely related to the yarn strength. When the yarn is spun with a long fiber, the length of the cohesion between the fibers is increased, so that the fiber is not easily slipped when the yarn is subjected to an external force, and the yarn strength is high.
Cotton fiber strength refers to the degree to which cotton fibers resist tensile fracture. When other indicators are basically the same, the fiber strength is positively correlated with the yarn and cloth quality. In the case of high spinning speed of modern spinning equipment, high fiber strength plays an important role in reducing the breakage rate in spinning and improving production efficiency.
Cotton fiber maturity is an important indicator of the degree of fiber wall thickening. In the case of similar fiber cell diameters, the thicker the cell wall, the higher the maturity. The fineness, micronaire value, strength and dyeing characteristics of cotton fiber are closely related to maturity.
High-quality raw cotton fiber requires that all major physical properties must be coordinated, that is, the length, strength, fineness and uniformity of the fibers should be matched with each other reasonably. The individual indicators do not represent good overall quality.
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