Operation Bulletin of Uniform Long Pant

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

A Uniform Long Pant is an easy style to produce in the sewing line. Here I describe the operation breakdown of the Uniform Long Pant with SMV and Machine name. 

Operation Bulletin of Uniform Long Pant is done by the following table. In this operation bulletin 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 Bulletin of Uniform Long Pant

SL.	Operation	Type of Machine	SMV	Target 100%	Target 75%
Back Part
1	Back Yoke Sewing	SNLS	0.30	200	150
2	Back Yoke Top Stitch	FOA	0.25	240	180
3	Pocket Placement Mark	Manual	0.25	240	180
4	Pocket Rolling	DNLS	0.25	240	180
5	Pocket Number Match	Manual	0.25	240	180
6	Pocket Iron	Iron	0.45	133	100
7	Pocket Attach	SNLS	0.49	122	92
8	Pocket Deco Stitch Mark	Manual	0.25	240	180
9	Pocket Deco Stitch	SNLS	0.40	150	113
10	Waist & Side Deco Stitch Placement Mark	Manual	0.30	200	150
11	Pocket Bartack	B/T	0.30	200	150
Front Part
12	S/Fly & Waist Band Fusing Attach	Manual	0.35	171	129
13	Front Rise & S/Fly Overlock	3T O/L	0.30	200	150
14	D/ Fly Tack & Over Lock	3T O/L	0.30	200	150
15	S/Fly Attach & Top Stitch	SNLS	0.35	171	129
16	Zipper Attach	SNLS	0.25	240	180
17	J-Stitch Placement Mark	Manual	0.20	300	225
18	J- Stitch	DNLS	0.25	240	180
19	D/Fly Attach	SNLS	0.25	240	180
20	Zipper Closing	SNLS	0.25	240	180
21	Front Rise Sewing	SNLS	0.25	240	180
22	Coin Pocket Rolling	DNLS	0.20	300	225
23	Coin Pocket Attach	DNLS	0.25	240	180
24	Pocket Facing Overlock	3T O/L	0.30	200	150
25	Pocket Facing Attach(Big)	SNLS	0.30	200	150
26	Pocket Facing Attach (Small)	SNLS	0.30	200	150
27	Pocket Number Match	Manual	0.25	240	180
28	Pocket Sewing	SNLS	0.35	171	129
29	Pocket Opening Top Stitch	DNLS	0.35	171	129
30	Pocket Opening Trimming & Mark	Manual	0.25	240	180
31	Pocket Tack	SNLS	0.30	200	150
32	Pocket Bag Closing	3T O/L	0.35	171	129
33	Pocket Turn	Manual	0.25	240	180
34	Pocket Bag Top Stitch(1/4)	SNLS	0.30	200	150
35	Knee Lining  Attach	Heat-Seal	0.65	92	69
Assemble
36	Back Front Number Match	Manual	0.30	200	150
37	Inseam Join	5T O/L	0.40	150	113
38	Inseam Top Stitch	FOA	0.35	171	129
39	Back & Front Rise Top Stitch	FOA	0.45	133	100
40	Side Seam Join	5T O/L	0.50	120	90
41	Side Seam Deco Stitch	SNLS	0.45	133	100
42	Care Label Attach	SNLS	0.25	240	180
43	Waist False Sewing	SNLS	0.30	200	150
44	Loop Number Match & Placement Mark	Manual	0.30	200	150
45	Loop Make & Cut	3T F/L	0.30	200	150
46	Loop Attach	SNLS	0.45	133	100
47	Waistband Marking	Manual	0.25	240	180
48	Waistband Label Attach	SNLS	0.30	200	150
49	Waistband Hole	BH	0.30	200	150
50	Waistband Number Match	Manual	0.25	240	180
51	Waistband Attach	MNCS	0.50	120	90
52	Waistband Trimming & Mouth Setting	Manual	0.40	150	113
53	Mouth Close (Lower)	SNLS	0.35	171	129
54	Mouth Close  (Upper)	SNLS	0.35	171	129
55	Bottom Rolling	SNLS	0.50	120	90
56	Loop Tack (Lower)	SNLS	0.35	171	129
57	Loop Tack (Upper)	SNLS	0.40	150	113
58	Loop Bartack	B/T	0.55	109	82
59	Side Seam, Coin Pocket & Fly Bartack	B/T	0.39	154	115
60	Waist Key Hole	EH	0.15	400	300
61	Final Trimming	Manual	0.60	100	75
	Total		20.33

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

• SNCS - Double needle Chain stitch
• DNLS - Double needle lock stitch
• MNCS - Multi needle Chain stitch
• FOA - Feed of the Arm
• 3T O/L - 3 Thread over lock
• 5T O/L - 5 Thread over lock
• FL - Flat Lock
• BH - Button Hole
• EH - Key Hole
• 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 target based on line efficiency, line cost and delivery date of the 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.

We can use “Ball Point or Sharp Point" Needle to stitch this item.

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
Medium weight fabrics (velvet, fine corduroy, linen, muslin, tricot, knits, fleece)	14

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

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