Operation Breakdown of Short Pant

A Short Pant is an easy style to produce in the sewing line. It has only two front and back pockets. Waistband full elastic. Here I describe the operation breakdown of the Short Pant with SMV and Machine name.

In my industrial engineering tutorial series, I am sharing a Short Pant. You can refer to this operation bulletin to learn about various operations involved, SMV and machine requirements in making Short Pant. 

Operation Breakdown of Short Pant is done by the following table. In this operation breakdown process list, estimated time, machine name, hourly production target quantity at 100% and 75% efficiency are shown. The estimated time (SMV) shown in the below table will vary according to the product method followed and machine and equipment used in actual production. So please be careful while you use the above estimated time against each operation.

Operation Breakdown of Short Pant

SL.	Operation	Type of Machine	SMV	Target 100%	Target 75%
Back Part
1	Back Rise Join	5T O/L	0.25	240	180
2	Pocket Placement Mark	Manual	0.25	240	180
3	Pocket Rolling	SNLS	0.30	200	150
4	Pocket Number Match	Manual	0.25	240	180
5	Pocket Iron	Iron	0.45	133	100
6	Pocket Attach	SNLS	0.49	122	92
7	Pocket Top Stitch (1/4)	SNLS	0.39	154	115
8	Pocket Bartack	B/T	0.20	300	225
Front Part
9	Front Rise Join	3T O/L	0.30	200	150
10	Front Rise Sewing	SNLS	0.35	171	129
11	Fly Top Stitch	SNLS	0.25	240	180
12	J-Stitch Mark	Manual	0.20	300	225
13	J-Stitch	DNLS	0.25	240	180
14	Pocket Facing Attach (Big)	SNLS	0.35	171	129
15	Pocket Facing Attach (Small)	SNLS	0.35	171	129
16	Pocket Number Match	Manual	0.25	240	180
17	Pocket Sewing	SNLS	0.35	171	129
18	Pocket Opening Top Stitch	DNLS	0.35	171	129
19	Pocket Opening Mark at Facing	Manual	0.25	240	180
20	Pocket Tack	SNLS	0.35	171	129
21	Pocket Bag Closing	3T O/L	0.30	200	150
22	Pocket Turn	Manual	0.30	200	150
23	Pocket Bag Top Stitch (1/4)	SNLS	0.30	200	150
24	Pocket Fauls Sewing	SNLS	0.25	240	180
Assemble
25	Back Front Number Match	Manual	0.30	200	150
26	Inseam Join	5T O/L	0.40	150	113
27	Back Rise & Front Rise Top Stitch	SNLS	0.45	133	100
28	Side seam Join	5T O/L	0.50	120	90
29	Side Seam Top Stitch	SNLS	0.40	150	113
30	Side Seam Decoration Stitch Mark	Manual	0.25	240	180
31	Side Seam Decoration Stitch (1/4)	SNLS	0.35	171	129
32	Care Label Attach	SNLS	0.25	240	180
33	Waist Elastic  Mark & Cut	Manual	0.30	200	150
34	Elastic Tack	SNLS	0.30	200	150
35	Waistband Tack	SNLS	0.30	200	150
36	Waistband Marking	Manual	0.25	240	180
37	Waistband Number Match	Manual	0.25	240	180
38	Waistband Sewing	SNLS	0.45	133	100
39	Grommet Placement Mark & Punch	Snap	0.20	300	225
40	Waistband Grommet Attach	Snap	0.25	240	180
41	Waistband Tack With Elastic	SNLS	0.50	120	90
42	Waistband Top Stitch	MNCS	0.50	120	90
43	Waistband Trimming	Manual	0.30	200	150
44	Bottom Rolling	SNLS	0.50	120	90
45	Main Label Attach at Waistband	SNLS	0.30	200	150
46	Front Pocket Bartack	B/T	0.20	300	225
47	Fly & Side Seam Bartack	B/T	0.15	400	300
48	Final Trimming	Manual	0.60	100	75
	Total		15.58

Full form of Machine Name:

In the above table a short name of sewing machines is written. Followings are the abbreviation of those short machine codes. 

SNLS - Single needle lock stitch

DNLS - Double needle lock stitch

MNCS - Multi needle Chain stitch

3T O/L - 3 Thread over lock

5T O/L - 5 Thread over lock

Snap - Snap Machine

BT - Bartack

Manual - Helper

How to set the target per hour in the Sewing line of the Garment Factory?

It will be best to set the line layout target based on line efficiency, line cost and delivery date of style.

Formula to set the 100% target:

Daily Target = (Worker x Working hour x 60/ SMV) x efficiency %

Basic Pitch Time (BPT) =Total SMV / Total Manpower

Fabric Types and Needle Size Chart:

Fabric Types	Needle Size
Very fine fabrics (silk, chiffon, organza, voile, lace)	8, 9, 10
Light weight fabrics (cotton, heavier silks, synthetics, spandex, lycra)	11, 12

Operation Bulletin makes our work easy to set up a production line in the apparel industry. We can easily manage machine and operator requirements for any sewing line by this. But it is necessary to do an operation breakdown to prepare a machine layout and line balancing by industrial engineering (IE). 

Visit here to know what is operation breakdown. You can visit my post to learn more about bulletin or breakdown of garments in the garment industry.

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