Definition of Bleaching A process of whitening fibres or fabrics or depriving a colored material. This is brought about by using various bleaching-agents. Generally chlorine is used for cotton and other vegetable fibres and peroxide and sulphur dioxide for animal fibres. Bleaching of Cotton Cotton is bleached in the raw state (as yarns) or in […]
What is carding? Definition and Meaning
Definition of Carding Carding is the second stage of cotton spinning. It is defined as the reduction of entangled mass of fibres to filmy web by working them between two closely spaced relatively moving surfaces closed with sharp points i.e. wires. The process of using a card (a thistle or teasel) for combing textile fibres. […]
Combing Faults with Causes and Remedies
Different Types of Combing Faults and Their Possible Remedies Cutting Across This fault indicates the thick and thin bars which occur from the one side of web to the other. The possible causes are – Incorrect roller setting, excessive draft, roller slippage or loose drafting rollers at the sliver and ribbon lap formers; lap former […]
What is Combing? Working Principle of Cotton Combing
Definition of Combing Removing short fibres, neps and impurities by using combs is called combing.It is the process of separation of long desirable fibres of same length from the short fibres, neps and all remaining foreign materials of the fibre stuck. The fibres also become straight and parallel. Working Principle of Cotton Combing All the […]
Conventional and Modern Lap Preparation Techniques
Sliver Lap Machine 20 carded slivers in cans are assembled at the back of the machine and led side by side along a polished table, passing through assisting rollers and a stop motion device. They enter the drafting section, which gradationally has three lines of rollers. The slivers are subjected to a draft of about […]
What is Dry Cleaning? Commercial Dry Cleaning Process
Definition and General Remarks of Dry Cleaning Dry cleaning can be defined as the cleaning of fabrics in a substantially non-aqueous liquid medium. This process has evolved during the last 75-80 years into a high effective, low cost, safe method of removing soils from all types of textiles. There is a clear record as to […]
Advantages and Limitations of Various Synthetic Fibres
The properties of a fabric depend primarily on the properties of the fibres from which they are made. Hence familiarity with the characteristic properties of a fibre will aid the consumer in knowing what to expect of different fabrics and what care is required in maintaining them. Viscose or Rayon Advantages Viscose rayon is suitable […]
Advantages and Limitations of Natural Textile Fibres
The properties of a fabric depend primarily on the properties of the fibres from which they are made. Hence familiarity with the characteristic properties of a fibre will aid the consumer in knowing what to expect of different fabrics and what care is required in maintaining them. Cotton Advantages Cotton can be processed into a […]
Description of a Precision Winder
Precision Winder The main feature of precision winder is the spindle in which the package is mounted and it directly gets drive. The precision winder is one, in which there is a constant ratio between the speed of the spindle which carries the package being wound and the speed of the traversing mechanism. This winder […]
Properties of Textile Protein Fibre
Protein Fibre Properties Natural protein fibres are of animal origin. These are those fibres in which the fundamental chemical structure is composed of amino-acids joined in poly peptide chain. All protein fibres comprise the elements, carbon, hydrogen, oxygen, and nitrogen. Wool comprises sulphur as well. In each protein fibre these elements are combined in diverse […]