Yarn Count Test
Objective:
Here we hope to measure yarn count. It means how many grams have in the unit length. It is called linear density.
Equipment & materials:
- Wrap reel
- Cotton yarn corn
- Weight tester ( 2-beam dial scale )
Principle:
Can be taken Tex values of direct count that yarns 100m and weight of yarn hank. To obtain textile values weight of hank divide by 100m and multiply by 100m ( here 100m taken by 1m wound on wrap reel 10 cycle.)
In this practical lab we didn't calculate from fabric text count. Because we did practical using yarn corns.
Theory and procedure:
First, yarn corns are placed on wrap reel above picture. Next, yarn end connected with wrap reel. Next, switched on reel and allowed to rotate 10 cycles. After, complete wound yarn on reel and switched off machine. After, removed wounded hank reel. Then calculated weight of hank using weight tester. Finally, calculated tex value using weight and hank length. And here we took three sample hanks, after calculating tex values then we find mean tex value.
Calculations: See PDF document
Observations:
- There are different values of weight found on three samples of hanks
- This weight gap was about two grams or point values.
Conclusion:
I think the reason to found different weight value (about 2g) is uneven of yarn. It may be contains thick places and thin places of yarn. And also I suppose some sample of banks may be but length changed from 100m. Therefore tex values that calculated were small changed. To avoid this fault we calculated mean (average) tex value using these three tex values of hanks.
Here we hope to measure yarn count. It means how many grams have in the unit length. It is called linear density.
Equipment & materials:
- Wrap reel
- Cotton yarn corn
- Weight tester ( 2-beam dial scale )
Principle:
Can be taken Tex values of direct count that yarns 100m and weight of yarn hank. To obtain textile values weight of hank divide by 100m and multiply by 100m ( here 100m taken by 1m wound on wrap reel 10 cycle.)
In this practical lab we didn't calculate from fabric text count. Because we did practical using yarn corns.
Theory and procedure:
First, yarn corns are placed on wrap reel above picture. Next, yarn end connected with wrap reel. Next, switched on reel and allowed to rotate 10 cycles. After, complete wound yarn on reel and switched off machine. After, removed wounded hank reel. Then calculated weight of hank using weight tester. Finally, calculated tex value using weight and hank length. And here we took three sample hanks, after calculating tex values then we find mean tex value.
Calculations: See PDF document
Observations:
- There are different values of weight found on three samples of hanks
- This weight gap was about two grams or point values.
Conclusion:
I think the reason to found different weight value (about 2g) is uneven of yarn. It may be contains thick places and thin places of yarn. And also I suppose some sample of banks may be but length changed from 100m. Therefore tex values that calculated were small changed. To avoid this fault we calculated mean (average) tex value using these three tex values of hanks.