Experiment Name: Determination of yarn count from fabric by Beesly's balance.
Objective:
i) To Determine the yarn count from fabric.
II) To learn about basic operations of Beesl's balance.
Theory:
The count is a numerical expression which defines its fineness or coarseness. It also expresses weather the object is thick or thin. A definition is given by the textile institute – “Count is a number which indicates the mass per unit length or the length per unit mass of any object.”
Types of yarn count:
a) Indirect system- English, Metric, Worsted.
b) Direct system- Tex, Denier, Lbs/Spindle.
Indirect count: The count of yarn expresses the number of length units in one weight unit. Thus higher the count, finer the yarn. The system is generally used for cotton, worsted, linen (wet spun) etc.
Direct count: The count of yarn expresses the no. of weight units in one length unit. Thus higher the count, coarser the yarn. The system is generally used for synthetic fibre, jute, silk etc.
Apparatus:
1. Template.
2. Beesly's balance.
3. Scissor.
Data Table:
No of
Observation
|
Types of
Sample
|
Warp Count
|
Weft Count
|
Average
Warp Count
|
Average Weft
Count
|
01
|
Matt Fabric
|
16
|
12
| ||
02
|
15
|
12
|
15.67
|
12.33
| |
03
|
16
|
13
|
Result : The average warp count and weft count of given sample accordingly 15.67 and 12.33
Conclusion: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
