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Calculation of Button Ligne for Garments

Calculation of Button Ligne for Garments
Mayedul Islam
Merchandiser at Fashion Xpress Buying House.
Badda, Dhaka, Bangladesh.
Email: mayedul.islam66@gmail.com



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 diameter of buttons. Usually watchmakers, button-makers and hat-makers use Ligne to measure their product size.

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). 
Chart of button ligne (mm to ligne)
Example-1: Figure out 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

Example-2: If Button length (dia) is 12.7 mm then 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 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.

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