Textile Technical Questions | Textile Spinning Questions | Textile Interview Questions with Answers
Technical Questions in Spinning:
Sometimes, we have to face a few technical questions in interview board from spinning sector. In that moment, it seems like totally unknown. If you read this article then you will get some ideas about the types of technical questions have to answer from spinning.
Important Questions and Answers in Spinning:
The below questions and answers are very important for all which are too much technical.
1. What happens when DCP changed?
DCP means draft change pinion. During carding, if it’s needed to change draft then pinion normally changes. The number of the teeth of this changed DCP higher then draft will be in less number. In the other hand, if number of teeth is less then draft will be higher.
2. What happens when PCW is changed or Barrow wheel is changed?
PCW means production change wheel. By the help of PCW, production can be more or less. If we want o increase the production then the number of wheel should be increase. On the other hand, if we want to decrease the production then the number of teeth of the wheel should be decrease.
3. What happens when feed roller and doffer speed is changed?
If feed roller and doffer speed decreases then keeping the other parts of the carding machine constant. Then it helps to improve the web quality. Because cylinder, taker-in and flats act upon less material so that opening and cleaning action will be very good and finally carding action will be higher.
On the other hand, if feed roller and doffer speed increased then keeping the other parts of the carding machine constant. Then it does not improve web quality. Because cylinder, taker-in and flats act upon more quantity material. That’s why, opening and cleaning action will be poor and finally carding action will be poor.
4. What happens when taker-in change of speed?
Or, What is the effect of taker-in speed on yarn quality?
The greatest part of opening and cleaning of fibres take place and performed by taker-in. about 50% of fibre tuft is made individual fibres by taker-in. the degree of fibre orientation can be controlled by the adjustment of-
- The degree of openness of raw material in feed stock.
- The aggressiveness of the clothing.
- The degree of orientation of fibre in feed stock.
- The thickness of the belt.
- The distance between the devices.