Ligne is a French word meaning “line” and it is abbreviated with the letter L. Internationally, ligne is used to recognize button size. Ligne is a liner unit (1/40 inch) used to measure the diameter of buttons. Usually, watchmakers, button-makers, and hat-makers use Ligne to measure their product size. Calculation of Button Ligne for Garments is discussed in the following.
Before calculating button line we should know following measurement:
- 1 inches = 40 ligne = 2.54 cm,
- 1 ligne = 0.635 mm
- 12 Pcs = 1 Dozen,
- 12-Dozen = 1 Gross,
- 12 Gross = 1 GG (1728 pcs).
Calculation of Button Ligne for Garments
Relation Between Ligne, Millimeters, and Inches:
| Ligne (L) | Millimeters (mm) | Inches |
| 14 | 9.20 | 0.35 |
| 16 | 10.5 | 0.40 |
| 18 | 11.6 | 0.45 |
| 20 | 12.5 | 0.50 |
| 21 | 13.5 | 0.53 |
| 22 | 14.2 | 0.55 |
| 23 | 14.8 | 0.58 |
| 24 | 15.0 | 0.60 |
| 27 | 16.8 | 0.68 |
| 28 | 17.8 | 0.7 |
| 30 | 19.0 | 0.75 |
| 32 | 20.5 | 0.80 |
| 34 | 21.5 | 0.85 |
| 36 | 22.9 | 0.90 |
| 40 | 25.4 | 1.00 |
Example-1:
Figure out the ligne of a button with 10mm Dia?
Answer: 10 / 0.635 = 15.75 ligne or 16 L (L means ligne)
Formula: Button Dia in mm / 0.635 or 1 / 0.635 x button Dia in mm
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Example-2:
If the Button length (dia) is 12.7 mm then the Button ligne will be?
Answer:
Button dia (in mm) / 0.635 = button ligne
12.7 mm / 0.635 = 20 L (L = ligne )
Result = 20 L
Example-3:
Per shirt has 6 buttons, total order quantity 3456 pcs, figure out total button quantity in GG ?
Answer: 6 x 3456 / 1728 = 12 GG.
Formula: number of buttons per product X order quantity / 1728 (1 GG = 1728 pcs)
Note: We need to add some extra quantity (minimum 3%) while counting buttons for an order to save us from risk in case of shortage due to defective & damaged.
dis is very helpful for us.tnx