Determining the Cross-Sectional Packing Density of Rotor Spun Yarns

Packing density, the fiber distribution in a yarn cross section, can to a great extent influence the properties and quality of the yarn. Thus, the need for precise and concise information about packing density becomes a must for an in-depth understanding of yarn structure and hence yarn mechanics. T...

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Published in:Textile research journal 2005-03, Vol.75 (3), p.233-239
Main Authors: Jiang, X. Y., Hu, J. L., Cheng, K. P.S., Postle, R.
Format: Article
Language:English
Subjects:
Counting
Cross sections
Density
Fibers
Mathematical analysis
Packing density
Studies
Textiles
Yarn
Yarns
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cited_by cdi_FETCH-LOGICAL-c347t-d5907451c6a96527c5b45f69fcceb159a0df4ab9eae68887f00e2a88b7ee34353
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description Packing density, the fiber distribution in a yarn cross section, can to a great extent influence the properties and quality of the yarn. Thus, the need for precise and concise information about packing density becomes a must for an in-depth understanding of yarn structure and hence yarn mechanics. This paper describes a detailed method for determining packing density. We begin by acquiring yarn cross-sectional images to provide input data for calculating yarn cross-sectional packing density. These data include the coordinates of each fiber center and fiber radius. A program whose general writing algorithm is also elaborated in detail is compiled to calculate the packing ratio zone by zone. With these discrete packing ratios, a curve-fitting technique yields a continuous packing density function. In addition, a study of the relationship between packing density and yarn parameters such as yarn count and twist factor is included.
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source SAGE:Jisc Collections:SAGE Journals Read and Publish 2023-2024:2025 extension (reading list)
subjects Counting
Cross sections
Density
Fibers
Mathematical analysis
Packing density
Studies
Textiles
Yarn
Yarns
title Determining the Cross-Sectional Packing Density of Rotor Spun Yarns
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