- Classic cotton thread - Fil Au Chinois

How is the thread thickness calculated? We are asked this question on an almost daily basis. It is not simple, especially as the calculation differs in function of the thread. In principle, France uses metric numbering (NM) since 1942 for cotton yarn: a thread measuring 1,000 metres with a constant weight of 1,000 grams. Thus a N°1 is a thread which weighs 1000 grams for 1,000 metres and, for example, a N°40 is a thread weighing 1,000 grams for 40,000 metres. But, for historical reasons, not all the producers follow this rule.

You will find a detailed article in Madame Sajou's Diary.

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Sajou store in Paris

47, rue du Caire 75002 Paris

01 42 33 42 66

boutique Sajou à Paris

Métro : Sentier
Réaumur-Sébastopol
Bonne Nouvelle

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10.00am to 7.00pm

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Haberdashery book

Haberdasheries of Yesteryear,
by Frederique Crestin-Billet

in both English and French.

Livre mercerie de collection Mercerie d'Antan

You can find it here.
Read the article on our blog.