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 cl...
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...
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