**Sizing Calculation Formula in Weaving:**

To achieve the 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 solutions to sizing. Now, this article presents some important formulas for sizing calculations, which are too much important to calculate sizing math.**All Sizing Calculation Formula with Examples:**

**1. Total length of yarn sized,**

=Total length of warp × Number of ends

**2. Total weight of size on the warp,**

= Weight of sized warp – the weight of the unsized warp

**3. The weight of size to be put on the warp,**

= Weight of unsized warp × size% required to be put on the warp,

**4. Weight of unsized warp in pounds,**

Length of warp in yds × Number of ends

=……………………………………………………………

840 × count

**5. Weight of sized warp in the pound,**

Length of warp in yds × No. of ends

=……………………………………………………

840 × yarn count

**6. Size% on the 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:**

The actual production of the 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 the 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, the count of sized warp yarn is 35.71s.

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