Woven and knitted fabric faults produced during finishing:
Table of Contents
Introduction:
Fabrics are commonly marketed as Bleached Finished Products, Dye Finished Products, and Printing Finished Products. Fabric Finishing Process The purpose of finishing is to enhance the beauty of the fabric and make it usable. The finishing process also depends on what the fabric will be used for. The fabric is usually finished in two ways. e.g.
A. Mechanical finishing.
B. Chemical finishing.
Regardless of the way the fabric is finished, it can cause the following defects during finishing.
1. Over calendering
2. Under calendering
3. Crease mark
4. Chumming
5. Fabric hole
6. Defective design
7. Defects of fabric in the design area
8. The clothes are rough
9. Clothes become stiff and sticky
10. Weak fabric
11. Unsmooth delisted fabric
12. Fabric strength not increasing
13. Formation of oxycellulose
14. Uneven crease resistance and crease recovery
15. Defective handle and drape
16. Uneven backfilling
1. Woven and knitted fabric faults produced during finishing-Over calendering:
Depending on the type of fabric, if you do not control the correct roller pressure temperature and roller speed during calendering. This error is seen when the pressure-temperature of the roller and the speed of the roller are excessive. https://bdfabric.com/what-is-process-control-in-the-textile-industry/
2. Under calendering:
Under calendering will be found in the pressure, temperature, and speed of the roller are less than required without controlling the type of fabric at the time of calendering. https://bdfabric.com/10-knitting-defects-that-occur-during-knitting/
3. Crease mark:
If there is any fold in the fabric during calendering, it enters the roller with folds and when folded, the fabric becomes calendering.
4. Chumming:
When the temperature of the roller is high and the speed is low, the cloth gets chumming.
5. Fabric hole:
To recover the fleet of cloth during stentering , If the tension and speed of the machine pin or clip are high, this defect can occur in the fabric.
6. Defective design:
If the temperature and pressure of the roller are not correct during embossing, the design on the fabric is defective.
7. Defects of fabric in the design area:
Abnormal pressure and temperature of the roller will add fabric flaws to the design space, even tearing.
8. The clothes are rough:
This type of defect can be seen if the cloth is too wet.
9. Clothes become stiff and sticky:
If the steaming on the cloth is not correct during sunforising such errors are seen.
10. Weak fabric:
This type of error occurs when the blanket is not correct and does not work properly and the pressure is not correct.
11. Unsmooth delisted fabric:
This type of defect can be seen if the cylinder is overheated during sunforising.
12. Fabric strength not increasing:
Such errors are observed when the temperature and concentration of the alkali solution are not correct during mercerizing.
13. Formation of oxycellulose:
If the time of mercerizing is not controlled properly, that is, if the time is too long, oxycellulose is formed in the fabric and the fabric becomes weak.
14. Uneven crease resistance and crease recovery:
If the curing is not correct during anti-creasing, such errors are seen.
15. Defective handle and drape:
Drawing and curing during anti-creasing If it is defective, such defect can be seen in the cloth.
16. Uneven backfilling:
Uneven backfilling occurs on the fabric when the pressure of the roller is not correct.
