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Monday, May 18, 2020 | History

2 edition of Cotton fibre fineness and maturity found in the catalog.

Cotton fibre fineness and maturity

E. Khadem-Ahmadabadi

Cotton fibre fineness and maturity

by E. Khadem-Ahmadabadi

  • 289 Want to read
  • 24 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementSupervised by: Cusick, G.E..
ContributionsCusick, G. E., Supervisor., Textiles.
ID Numbers
Open LibraryOL20807183M

According to Basu () the fineness of cotton evaluated by micronaire value is a combined measure of fineness and maturity, implying that an immature fiber shows . The reading is influenced by both fibre maturity and fibre fineness. For a given growing area, the cotton variety generally sets the fibre fineness, and the environmental factors control or influence the fibre maturity. Thus, within a growing area the micronaire value is usually highly related to the maturity value.

MicroLab Fibre-yarn analysis E. High performance computerised system conceived for the analysis of fibres, yarns, non-wovens, etc. Equipment suitable to: perform in a fast and easy way the fineness analysis of single fibres; identify the different fibres contained in a . Fibre maturity: The maturity of cotton fibre is totally dependent in terms of the development of cell wall. It should be noted here that, a fully mature fibre has a well developed thick cell wall where as an immature fibre has a very thin cell wall.

A Practical Guide to Textile Testing is about the physical and chemical test procedures used in testing textiles at different stages namely, fibre, yarn, fabric and garment. It serves as a guide for young learners of textile discipline. In addition to the testing procedures, information related to . The maturity of cotton wool fibre is totally subject inwards price of the evolution of jail cellular telephone wall. It should hold upward noted hither that, a fully mature fibre has a good developed thick jail cellular telephone wall where equally an young fibre has a real sparse jail cellular telephone wall.


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Cotton fibre fineness and maturity by E. Khadem-Ahmadabadi Download PDF EPUB FB2

The fibre maturity is usually estimated by several indirect tests which are foten used to find out the proportion of fibres containing a maturity greater than some selected level.

A fiber will be matured if a high degree of wall thickening took place into the fiber content during cotton growth. Fibre fineness. In order to have a product which will blend more easily and will have appropriate characteristics such as softness on the skin, fibre fineness must be considered.

Fibre fineness can be defined in micronaire (μg/inch) which measures units of mass (micrograms or μg) per unit of length (inches) to assess linear density. of cotton fibers. These algorithms involve a sequence of pixel manipulations in order to resolve problems present in the image for a better analysis.

Then, we measure a set of cotton geometric parameters to define newest factors of cotton maturity. BACKGROUND There is two ways for determining mature and immature cotton fibers in a given sample. and fineness, and maturity and fineness) has been observed.

There is a need to model the relation-ships between these variables to understand the changes in R2. The objective of this study was to develop and compare models between micronaire, fineness, and maturity in terms of the cross-sec-tional dimensions of wall thickness and Size: KB.

Previous researchers established a set of reference cottons with known fiber maturity and linear density (fineness) values based on the analysis of a large number of individual transverse fiber cro Cited by: 3.

Fibre strength and fibre fineness 1. FIBRE STRENGTH AND FIBRE FINENESS BY MAL ARVIZHI.M 2. CONTENT • Importance of fibre testing • Basic characteristics of cotton and man-made fibres • Standard atmosphere for testing • For cotton, man-made and its blends Introduction to fibre strength Importance of fibre strength Machines used to calculate fibre strength Introduction to fibre.

Different methods of testing cotton for fineness and maturity are reviewed and the precautions to be taken to get accurate results are discussed.

Merits and limitations of the methods are indicated. Relationship between the values from different. Maturity and micronaire value. Maturity of cotton is an important property; the higher its maturity the stronger and thicker the fibre or higher its linear density which is usually related to better dyeability, ease of processing and ultimate quality of the product.

A rapid measurement for cotton breeders of maturity and fineness from developing and mature fibers. Textil Res J Janu doi: / Google ScholarCited by: 2. mary components are the fiber's maturity and fineness [1,2].

Montalvo and Von Hovcn [] published a critical review of the Near Infrared (NIR) analysis of cotton with special emphasis on micronaire, fineness and maturity, which are functions of the fundamental cross-sectional variables of wall thickness, perimeter, and wall area.

Included in the. fineness and maturity. This paper reports on the use of a reference technique for measuring cotton maturity, based on image analysis of thin fiber sections to develop a set of standard calibration cottons having a wide range of fineness and maturity values.

We are working closely with several cotton geneticists/breeders. Fiber Fineness is one the most important fiber characteristics.

The Fiber Fineness determines how many fibers are present in the cross-section of a yarn of given thickness. Minimum thirty fibers are needed in the yarn cross-section but there are usually hundred. For almost all new spinning process one hundred is approximately the lower limit.

Fiber fineness: The fiber fineness is expressed in weight per unit length or length per weight. According to “Textile Institute”, the fineness of cotton, silk and manufactured fibers is usually expressed in terms of average linear density.

Fiber fineness can be measured by the following method: Air flow method, Gravimetric method. The method of cotton fineness assessment by CottonScan is based on a direct method of measuring the total length of a known mass of fiber snippets to directly calculate the mass per unit length (fineness).

The SiroMat™ instrument determines a fiber’s maturity based on fiber colors when viewed under a polarised light microscope. fineness properties. Cotton Fibre Maturity Measurement: The SiromatTM Technology Historically it was known that mature and immature fibres could be distinguished based on their different birefringence properties i.e.

different colours when viewed under a polarised light microscope (ASTM D, ). This method has previouslyFile Size: KB. Cottonscope Pty Ltd design and manufacture fully automated instruments for the measurement of cotton and ultrafine fibres.

Cottonscope provides a quick, accurate and direct measurement of cotton maturity and fineness. CottonscopeHD is an accurate, fast and easy to use instrument to measure the diameter and curvature of ultrafine fibres from um. A study is made of the various factors influencing the values obtained from Micronaire tests made on samples of cotton.

It is shown that both fibre fineness and maturity affect the measurements. Fineness and maturity. The fineness and maturity of a cotton fibre are important too. The finer and more mature a fibre is the better the quality of it.

These properties are measured in micronaire, which is the air permeability of compressed cotton. Using cotton with a low micronaire count leads to neppy yarn and more waste, as it breaks more.

Fineness and maturity measures were compared on two groups of cotton samples tested with the Micronaire, Arealometer, and IIC-Shirley fineness/maturity tester; one group was also tested with the Causticaire and sodium hydroxide maturity by: 1. A key cotton fiber quality property is micronaire, which acts as an indicator of the fiber’s maturity and fineness.

Previous studies have demonstrated the ability of Near Infrared (NIR. ASTM () Standard test methods for linear density and maturity index of cotton fibers (IIC-Shirley Fineness/Maturity Tester) D In ‘Annual book of ASTM standards.

Section seven: Textiles. Vol. ’. pp. – (American Society for Testing and Materials: West Conshohocken, PA)Cited by: 6.D Test Method for Length and Length Uniformity of Cotton Fibers by Photoelectric Measurement.

D Practice for Differential Dyeing Behavior of Cotton. D Practice for Conditioning and Testing Textiles. D Test Method for Maturity Index and Linear Density of Cotton Fibers by the Causticaire Method.

D Terminology for Cotton Fibers. In the tradition of Mark Kurlansky's Cod and Salt, this endlessly revealing book reminds us that the fiber we think of as ordinary is the world's most powerful cash crop, and that it has shaped the destiny of g from its domestication 5, years ago to its influence in creating Calvin Klein's empire and the Gap, Stephen Yafa's Cotton gives us an intimate loo/5.