TEXTILES FOR MERCHANDISER

CARDING SECTION  Carding Section: Carding is a process in which fibres are opened (almost to single fibre staple), parallelised and removes dust, impurities, neps, short fibres to produce a continuous strand of fibres called sliver of uniform weight per unit length. Objects of Carding: Carding is one of the most important operations in the spinning process as it directly determines the final features of the yarn, above all as far as the content of neps and husks are concerned. There are many objectives of the carding process and these can be summarized as: Individualization of the cotton fibre at a single fibre staple state i.e. opening the tufts into individual fibres; Elimination of the remaining impurities i.e. eliminating all the impurities contained in the fibre that were not eliminated in the previous cleaning operations; Disentangling of neps i.e. removal of neps; Selecting the fibres on the basis of length, removing the shortest ones; Fibre ble

Process layout of the yarn manufacturing system Flow chart of combed yarn manufacturing with input or feed and output or delivery product  :   Process and Product of the cotton Ring Spinning A modern blow-room line as follows: The following blow-room line provide by the Trutzschler  :

  Blow room Section  : Basic operation in the Blow-room:   Opening the cotton bale   Homogeneously mixed or blended tufts   Clean fibre tufts   Convert fibre tufts into a fibrous sheet, is called lap.   Objects of Blow-room :  The basic purpose of blow-room line is to supply following qualities of fibre tufts to the carding  process. Small fibre tufts   Homogeneously mixed or blended tufts Clean fibre tufts   Convert fibre tufts into a fibrous sheet, is called lap. Blending:  The method of mixing different fibres within a specific ratio is known as blending. Mixing:  The method of combining identical fibres in various grade of different ratio is known as mixing.   Conventional Blowroom line:    There are different types of conventional blow-room line. It differs manufacturer to manufacturer. For example a typical blow-room line as follows: Hopper bale opener   Ultra cleaner or step cleaner   Vertical or twine opener or cleaner   Hopperfeeder-1   Po

Types of cotton yarn There are two types of cotton yarn according to their manufacturing process as follows:     Carded yarn   Combed yarn Flow chart of carded yarn manufacturing with input or feed and output or delivery product:       

Classification of Yarn Classification of yam according to their structure  :   Yarns may be divided into three types according to their structure as follows:   Staple fibre yams or Spun yams (Single yarn):   Spun yarns are made by mechanical assembly and twisting together (spinning) of staple fibres. Ring spinning, Rotor spinning, Wrap spinning, Air-jet spinning etc. machines are used to produce this spun or single yarns.   Ply yarn :    Single yarns are used in the majority of fabrics for normal textile and clothing applications, but in order to obtain special yarn features, particularly high strength and modulus for technical and industrial applications, ply yarns are often needed. A folded or ply yarn is produced by twisting two or more single yarns together in one operation, and a cabled yarn is formed by twisting together two or more folded yarns or a combination of folded and single yarns. The twisting together of several single yarns increases the tenacity of t

YARN MANUFACTURING An assemblage of fibres that is twisted or laid together so as to form a continuous strand that can be made into a textile fabric. So a yarn is a strand of natural or man-made fibres or filaments that have been twisted or grouped together for use in weaving, knitting, or other methods of constructing textile fabrics. The type of yarn to be manufactured will depend on the fibres selected; the texture, or hand, of the fabric to be made; and qualities such as warmth, resiliency, softness, and durability required in the fabric's end uses. Types of Fibres: All the textile fibres are classified according to their staple length into two categories, such as staple fibre and filament. Staple fibres:   It has a limited length that varies according to the type, such as cotton, wool, jute etc.There are two types of staple fibre, one is short staple fibre another one is long staple fibre. Cotton is mainly short staple fibre and other maximum natural fibres a