About yarn count (Ne & Tex)

 1Ne = 840 yards/lb

1Tex = 1 grams/km

Ne and Tex Relation:

                        Tex*Ne=590.6
Related Conversation :

                                       1 yards = 36 inch

                                       1 m = 0.9144 yards

                                       1 kg = 2.205 lb

1. Ne: It is indirect (English) count system usually use for cotton.
     
Explanation: 
                           let,
                                 given yarn count is 30Ne
it means,
               1 lb mass of yarn length is 30 hank      [ 1 hank = 840 yards]

so , 30Ne means that 1 lb mass of yarn length is (30x840) yards 



 2. Tex: it is direct count system usually for jute, silk, synthetic etc.

Explanation: 
                        let,
                                given yarn count is 50Tex

it means,
               1 km length of yarn weight is 50 grams

so, 50Tex means that 1 km length of yarn weight is 50 grams