Important Formulas of Sizing Calculation in Weaving With Examples
Sizing Calculation Formulas in Weaving:
To achieve required quality sized yarn we have to know the calculation method of sizing in weaving. In another article I have presented some mathematical problems and solution of sizing. Now, this article presents some important formula for sizing calculations, which are too much important to calculate sizing math.
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| Sizing calculation formula in textile weaving |
Different Formulas of Sizing Calculation with Examples:
1. Total length of yarn sized,
=Total length of warp × Number of ends
2. Total weight of size on warp,
= Weight of sized warp – weight of unsized warp
3. The weight of size to be put on warp,
= Weight of unsized warp × size% required to be put on warp,
4. Weight of unsized warp in pounds,
Length of warp in yds × Number of ends
=……………………………………………………………
840 × count
5. Weight of sized warp in pound,
Length of warp in yds × No. of ends
=……………………………………………………
840 × yarn count
6. Size% on warp,
Weight of size
=…………………………………. × 100%
Weight of unsized warp
7. Count of sized yarn,
Length of warp in yards × no. of ends
=………………………………………………….
840 × weight of sized warp in pounds
8. Count of sized yarn,
Count of unsized yarn × 100
=………………………………………..
100 + Size%
9. Sizing efficiency,
= {Actual production/Calculated production) × 100}
Examples of Sizing Calculation in Weaving:
Example-01:
Actual production of high speed slasher is 35000 yards per day of 8 hours. Calculate sizing efficiency if calculated production is 100 yards per minute.
Solution:
Given that,
Calculated production in yards per minute= 50,
Calculated production in yards per hour= (100×60) = 6000 yards,
Actual production in yards per 8 hours= 35000,
Now,
Actual production in yards per hour= (35000/8) = 4375 yards,
So,
Sizing efficiency,
= {Actual production/Calculated production) × 100}
= {(4375/6000) × 100}
= 72.92%.
So, sizing efficiency for this calculation stands at 72.92%
Example-02:
If the following data is given then calculate count of sized warp yarn:
Length of warp in yards= 1200,
Number of ends= 3000,
Weight of sized warp in pounds= 120.
Solution:
Count of sized yarn,
Length of warp in yards × no. of ends
=…………………………………………………
840 × weight of sized warp in pounds
1200×3000
=……………………
840×1203
= 35.71s
So, count of sized warp yarn is 35.71s.
