Cotton

Traditional Cotton Classing Method

Mar 1, 2016 |

Traditional Classing Method After the cotton is ginned, a sample is taken from each bale and sent away to classing rooms to have it graded for its quality. The cotton fibre is sorted into different quality-based grades (or classes). The Higher the class, the better the quality of the cotton fibre, and the higher the […more]

Polymer system of cotton

Feb 4, 2016 |

Polymer system of cotton The cotton polymer is a linear, cellulose polymer. The repeating unit in the cotton polymer is cellobiose which consists of two glucose units. The cotton polymer system consists of about 5000 cellobiose units, that is its degree of polymerisation is about 5000. It is a very long, linear polymer, about 5000 […more]

Macro Structure of Cotton Fiber

Feb 4, 2016 |

Macro Structure of Cotton Under a microscope, a cotton fiber appears as a very fine, regular fiber. It ranges in length from about 10mm to 65 mm, depending upon the quality of the fiber. Cotton is a very fine fiber with little variation in fiber diameter; compared with wool for instance, its fiber diameter is […more]

Utilization of Cotton Fiber

Feb 4, 2016 |

Utilization of Cotton Fiber Cotton has a diverse uses in all shapes; fiber, yarn, fabric and clothing.The major use of cotton fiber is to make yarn of different counts and different types. Notwithstanding, there are many uses of cotton as fiber. It is used to make surgical cotton, filters, pads, quilts, pillows, cushions, seats,etc. In […more]

Cotton and Wearing Comfort

Feb 4, 2016 |

Cotton and Wearing Comfort It is an instinct demand of the end user of fabric to have a comfort. We can divide comfort into two categories; psychological and physiological. Comfort means, absence of discomfort. Starting from the fiber structure,yarn and fabric parameters, application of finishing chemicals and way it has been processes, all have a […more]

Strength of Cotton Fiber

Feb 4, 2016 |

Cotton Fiber Strength Exact measurement of cross-sectional of cotton fiber is challenging. It is primarily due to non-uniformity present in the structure of fiber. It becomes more crucial in case of natural fibers. To have a better idea about the strength of the fibers, it is not measured in giga Pascal (SI unit of pressure),whereas, […more]

Fineness of Cotton Fiber

Feb 4, 2016 |

Cotton Fiber Fineness Thickness of fiber stand for the distinct properties which fiber holds. There is a wide variation in the value of thickness. It varies from 1 to 100┬Ám. What is more, it is quite difficult to measure exact thickness of the fiber due to variation. Negligible variation in fiber uniformity, and cross-sectional area […more]

Friction of Cotton Fibers

Feb 4, 2016 |

Cotton Fiber Friction Friction of cotton depicts the state of the cotton fiber surface. Wax is present during the growth of cotton. It is removed in most of the cases during wet processing. Nevertheless, there are softening agents available which are added during finishing process. These finishes improves the smoothness and reduces the friction. The […more]

Optical Properties of Cotton Fiber

Feb 4, 2016 |

Cotton Fiber Optical Properties There is strong relationship between optical properties and electrical properties at very high frequencies. Refractive index, which is a measure of polarizability, depicts the optical properties. Polarizability is highly linked with the orientation of polarizable groups. When calculated the difference between two refractive indexes; axial and transverse, which is called birefringence. […more]

Electrical Properties of Cotton Fiber

Feb 4, 2016 |

Cotton Electrical Properties Static electrification and electric conductivity are two note worthy features of cotton. Cotton shows a remarkable electric conductivity. However, it becomes very low, when moisture percentage become negligible. Due to high electric conductivity, cotton dissipate charge quickly.Incase of cotton, since it is a moisture-absorbing fiber, movement of charged ions are responsible for […more]