T.Durai & Co., based in Chennai, India is a leading manufacturer of wood buttons, bone buttons, coconut shell buttons, and buttons made of pipes, seashell, horn, wood buckles, hand-painted, toggles, and synthetic.
Wood Buttons Specification
Ligne
Ligne is a French word meaning line. It was in use prior to the French adaptation of the metric system in the late 1700s and is still used by French and Swiss wristwatch makers to measure the size of a watch movement. (For example, Girard-Perregaux introduced a new 12 ligne chronograph movement.) In this usage, there is 12 ligne to one French inch (pouce). The standardized conversion for a ligne is 2.2558291 mm (1 mm = 0.443296 ligne), and it is abbreviated with the letter L.
In the eighteenth century, the term ligne came into use among German button makers, where it was used to measure the diameter of buttons. The consensus definition was that a ligne was the measurement of a round wick, folded flat. In this sense, it measures 1/40th of an inch.
Ligne: A button’s ligne, refers to a button’s size. The word ligneis a French word that became the standard reference used by German button manufacturers in the early eighteenth century. Ligne is the internationally recognized standard. The consensus at the time was that a “ligne” measured the inside diameter of a “round wick folded flat.” One inch is equal to 40 English ligne, 11 French ligne, and 25.5 mm.
| LINGE | MILLIMETERS | INCHES |
| 14 | 9.2 | 0.362 |
| 16 | 10.5 | 0.413 |
| 18 | 11.6 | 0.457 |
| 20 | 12.5 | 0.492 |
| 21 | 13.5 | 0.531 |
| 22 | 14.2 | 0.559 |
| 23 | 14.8 | 0.583 |
| 24 | 15 | 0.59 |
| 27 | 16.8 | 0.661 |
| 28 | 17.8 | 0.701 |
| 30 | 19 | 0.748 |
| 32 | 20.5 | 0.807 |
| 34 | 21.5 | 0.846 |
| 36 | 22.9 | 0.902 |
| 40 | 25.5 | 1 |
Scale of Button Sizes
Buttons are measured by the English standard of 40 lignes per inch. Therefore, a 30 ligne button is 3/4″ in diameter, a 45 ligne button is 1-1/8″ diameter, and so on.
Buttons Specifications
Material Used: ABS plated, Alloy Metal, Aluminum, Brass, Cast, Fabric Covered, Buffalo Horn, Cow Horn, Ox Horn, Real Horn, Animal Bone, Coconut Shell, Wood, Imitation Pearl Polyester, Imitation Shell Polyester, Melamine, Metals, Nylon, Natural Pearl, Polyester Chalk, Polymat Polyester, Rubber, Natural Shell, Urea, and Natural Wood.
Application: General-Women’s, Men’s and Children’s Wear, Toys, and Consumer Goods.
| Sizes Available (English Ligne-approx. mm) | ||
| 12 Ligne-6 mm | 20 Ligne-13 mm | 40 Ligne-25.5 mm |
| 13 Ligne-7 mm | 21 Ligne-13.5 mm | 44 Ligne-28 mm |
| 14 Ligne-8 mm | 24 Ligne-16 mm | 45 Ligne-29 mm |
| 15 Ligne-9 mm | 28 Ligne-18 mm | 48 Ligne-30.5 mm |
| 16 Ligne-9.5 mm | 30 Ligne-19 mm | 50 Ligne-32 mm |
| 17 Ligne-10.5 mm | 32 Ligne-20 mm | 60 Ligne-38 mm |
| 18 Ligne-11 mm | 34 Ligne-21 mm | 64 Ligne-40.5 mm |
| 19 Ligne-12.5 mm | 36 Ligne-22 mm | 65 Ligne-41 mm |
| Attachments/ Styles | Colors Available |
| White | |
| 2 Hole | Black |
| 4 Hole | Dyed to Match |
| Toggle | Dull |
| Shank | Matte |
| Polished | |
| Gold | |
| Silver | |
| Antiqued Metals |
Note on button sizes
Rather than in inches, dealers in commercial buttons distinguish according to a series of measures called ligne. For reference, the table below indicates the ligne measurement and corresponding ligne sizes:
| 1/3″ | 14 ligne |
| 3/8″ | 16 ligne |
| 7/16″ | 18 ligne |
| 1/2″ | 20 ligne |
| 9/16″ | 22 ligne |
| 5/8″ | 24 ligne |
| 3/4″ | 30 ligne |
| 7/8″ | 36 ligne |
| 1 1/8″ | 45 ligne |
| 1 3/8″ | 55 ligne |
| 1 3/4″ | 70 ligne |
T.Durai & Co. ‘Durai Villa’
14 Ambedkar Nagar,
Vadapalani, Chennai-600 026.
India.
Tel: 91-44-2362 2362 (9 Lines),
Fax: 91-44-2362 4344
http://www.naturalbuttons.com/
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