# Textile Calculation

Problems and solutions of textile

## How to Calculate Sewing Thread Consumption in Sacking Jute Bag

How to Calculate Sewing Thread Consumption in Sacking Jute Bag
Amit Kumar Das
Founder of "টেক্সটাইল ম্যানিয়া" Blog
Pabna Textile engineering college, Pabna, Bangladesh
Cell: 01770 456240
Email: amitptec6th@gmail.com

Sewing Thread Consumption of Jute Sacking Bag:
Normally five types of stitches are used in making a jute sacking bag
1. Hemming stitch
2. Herakle stitch
4. Safety sewing
5. Hand sewing
Above this five types Hemming and Herakle are most common two.

The length of sewing thread is determined by the following Equation,
Length of Sewing (Inch.) = Length of Sewing(Inch.) x Sewing factor x Ply Number
 Jute bag
Mathematical Problems and Solutions:

Problem: In Making a sacking bag of 32’’ x 18’’, how much thread will be needed For making Herakle and mouth hemmed stitch at top and bottom?

Solution:

The solution of the math will be divided in four section,Such as
1. Finding The Length of Herakle thread
2. Determining the weight of this length of thread of (1)
3. Finding Length of Heming thread
4. Determining the weight of this length of thread of (2)
(A) The Length of Herakle thread needed for Making a sacking bag of 32’’ x 18’’
= (Bag’s length + Bag’s width) x Sewing factor x Ply number for sewing thread
= (32 + 18 ) x 8 x 3 ply [as the thread of 8 ply]
= 50 x 8 x 3
= 1200 Inch.
= 1200 ÷ 36 yds.
= 33.33 yds.

(B) The Weight of sewing thread = Length of sewing thread (yds.) x { Yarn’s count(ply) ÷ 14400 }
= 33.33 x ( 8 ÷ 14400 )
= 0.0185 pounds.
= 0.296 Aounce. (ANS)

(C) Length of Hemming thread = Mouth’s length x 2 (Top & bottom) x Sewing factor x Ply Number
= 18 x 2 x 5.33 Single thread [As the Thread of 11 ply ]
= 191.88 Inch.
= 191.88 x 36
= 5.33

(D) The weight of hemming thread = Sewing thread’s length x (Count of sewing thread ÷ 14400)
= 5.33 x (11 ÷ 14400 )
= 0.0041 pounds
= 0.065 ounce

Now here the summation of all thread in need = B + D