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## Consumption Formula for Interlock Sewing Machine

Consumption Formula for Interlock Sewing Machine
Noor Ahmed Raaz
B.Sc. in Apparel Manufacturing
Asst. Merchandiser at A.M.C.S Textile Ltd
Email: raju.uttara72@yahoo.com

Interlock Sewing Machine
Interlock sewing machine designed for knit material sewing. This machine used for seaming and hemming of light to heavy weight fabrics. Most suitable for making components of Container Bags.
 Interlock sewing machine
Consumption Formula for Interlock Sewing Machine:
Interlock = Over lock + Chain stitch.

Problem:

If there are 20 yds. Of Interlock sewing in a garment then how many meters of sewing threads are needed for Interlock sewing?

Solution:

We know, Interlock = Over lock + Chain stitch.

So we need to find out how many meters of threads are needed for both over lock sewing and chain stitch in 20 yds. (Given).

For Over lock sewing: 1yds. = 36 inch

Then, 20 yds. = 36 × 20 = 720 inch.

Then, 720″ needed = 15 × 720 thread

Need thread consumption = 1080/39.37 = 274.32 meter

For Chain stitches: 1yds. = 36 inch

Then, 20 yds. = 36 × 20 = 720 inch.

Then, 720″ needed = 4.5 × 720 thread

Need thread consumption = 3240/39.37 = 82.29 meter

We know, Interlock = Over lock + Chain stitch.

So, Interlock = 274.32 + 82.29 = 356.61 meter. (Ans.)

[Bar tack = 7″ per operation, Button hole = 7″ per operation, Button = 3″ per operation.]

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