International Journal of Engineering Inventions
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RIEF I NTRODUCTION OF Y ARN M ANUFACTURING DEPARTMENT In under the yarn manufacturing department, there are mainly seven departments: 3.1 Blow Room Process Blow room is the initial stage in spinning process. The name blow room is given because of the ―air flow‖ And all process is done in blow room because of air flow. Blow room is consisting of different machines to carry out the objectives of blow room. In blow room the tuft size of cotton becomes smaller and smaller. Mixing of cotton is done separately as well as in blow room. Compressed layer of bale is also open in blow room with the help of machine. [34] Fig. 3 Diagram of Blow Room Department 3.2 Carding Process Carding process is very important role in spinning mill. It helps us both way to open the tuft into a single fiber and to remove the impurities and neps. Textile experts are convinced for the accuracy of following statement. “The card is the heart of spinning mill” and “well carded is well spun” Card feeding is done by two ways. One is manually and other is through chute feed system. In manual case the lap which is produced in blow room and it is feed to the card. In chute feed the material is feed through air flow system to card machine. [35] It is important to say that lower the feed variation better is the carding quality. Lower the feed variation then draft variation will also be less. Then yarn quality will be consistent. If the card is having auto leveler then Analysis on the Defects in Yarn Manufacturing Process & its Prevention in Textile Industry www.ijeijournal.com Page | 48 nominal draft should be selected properly. In some circumstances card also act as a cleaner and remove a certain amount of short fiber. Approximately 90% cleaning efficiency is achieved with the help of carding machine. Fig. 4 Diagram of Carding Department tải về 1.28 Mb. Chia sẻ với bạn bè của bạn:
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