Recommended
More Related Content
What's hot
What's hot (20)
Similar to Yarn Singeing and Biopolishing Process
Similar to Yarn Singeing and Biopolishing Process (20)
More from Shahriar Shovon
More from Shahriar Shovon (20)
Recently uploaded
Recently uploaded (20)
Yarn Singeing and Biopolishing Process
- 2. SUBMITTED TO FATEMA TUJ JOHRA LECTURER National Institute Of Textile Engineering And Research
- 3. SUBMITTED BY AL AMIN ADOR 16061015 HASAN SAAD 16061017 SAJID HASAN 16061018 SATTAJIT KAR DURJAY 16061019 NIGAR AFROSE 16061020 ABIR AHMED 16061021 PRIYANKA AKTAR 16061022
- 4. OVERVIEW 1. SINGEING 2. YARN SINGEING 3. YARN SINGEING MACHINE 4. TESTS FOR SINGEING 5. EFFECTIVE TEST FOR SINGEING 6. BIOPOLISHING 7. ACTION OF CELLULASE 8. RECIPE FOR BIOPOLISHING 9. PROCESS FLOWCHART
- 5. 1. SINGEING
- 6. SINGEING 1. The word singeing is the noun from of the verb singe which means burn (something) superficially or lightly. 2. In textile Singeing is a process applied to both yarns and fabric to produce an even surface by burning off the projecting fibers. 3. Accomplished by passing the yarn over a gas flame or heated copper plates at a speed sufficient to burn only the projecting fibers.
- 8. YARN SINGEING 1. Removing projecting fiber or fuzz from the yarns surface by passing the yarn over a gas flame. 2. Can also be done by a heated cupper plate. 3. Is an important pretreatment. 4. Gives a clean yarn surface. 5. The risk of pilling decreases. 6. Makes the yarn suitable for dyeing process.
- 9. before after
- 11. YARN SINGEING MACHINE The machine consists of a number of gas burners equal to the no. of packages to be handled by the machine. The yarn passing from a big package allowed to meet gas burner & the singed yarn is rewound on another package. Now a day electrical burner heated to about 1,100 degree Celsius are used assuring great safety.
- 14. TESTS FOR SINGEING Types of singeing test: o Visual o Using tape o Pilling test
- 15. 5. EFFECTIVE TEST FOR SINGEING
- 16. EFFECTIVE TEST FOR SINGEING Pilling test is the effective test for singeing. Pills are the entangled fibers clinging to the cloth surface which gives fabric unusual appearance. For this test the fabric sample is needed and then the fabric used to rub against the a standard fabric. After a certain number of rub the sample is examined and number of pills counted. After that the samples are examined with the given standards & the effectiveness is decided.
- 17. Test sample
- 18. 6. BIOPOLISHING
- 19. BIOPOLISHING o Biopolishing is an important enzyme pre treatment. This process is used to decrease the pilling tendency & fuzziness of cellulose by targeting the small fibers of yarn with a n enzyme named cellulase. o Removes projecting fiber & slubs from knitted fabric. o Soften fabric hand & provides a smooth fabric appearance& fast washing o Used for making fabric quality greater.
- 20. before after
- 21. 3 ENZYME SYSTEM ENDOCELLULOSE EXOCELLULOSE CELLUBIOS o ENDOCELLULOSE: Separates fabric from surface. o EXOCELLULOSE: Converts into CELLUBIOS. o CELLUBIOS: Breaks CELLUBIOS into glucose.
- 23. ACTION OF CELLULASE Enzymes are large molecular complex & cant penetrate interior of the fabric & hence enzymes action takes place. Preferentially on the surface cellulases are capable breaking the 1,4-B glucose bonds. Cellulose randomly breaks when the cotton fabric is treated with a cellulase solution under optimum condition. Cellulases hydrolysis cellulose by reaching to the 1,4- B glucoside bond of cellulose molecule. As a result the fabric surface got smoother and the process is done. After the process is done the cellulase need to deactivated.
- 26. ENZYME 1-2 g/L ACETIC ACID .5-2g/L TEMPARETUE 55 pH 4-5 TIME 30 min M:L 1:10 RECIPE FOR BIOPOLISHIG
- 29. THANKS!