Summary：Single side yarn length calculation formula: Naz: 100 needles (99 coils) yarn length = 99 * 1181 / NE * g
Calculation f...
Single side yarn length calculation formula: Naz: 100 needles (99 coils) yarn length = 99 * 1181 / NE * g
Calculation formula of single side door width: Naz: door width = total needles of needle cylinder / [square root of coil number of 1 m2 * K1 * (L + K2) / (yarn diameter D + K3)]
Calculation formula of single bead ground yarn length: Naz: 100 needle yarn length (CM) = 2010 / (NE + 2.7) / (G + 80) * 99
Door width = total stitches / 5cm transverse density * 5
Total number of coils = M2 yarn length / coil length
M2 yarn length (m) = 9000 / D * gram weight * 100
5cm transverse density = total coil square * 900 * (L + 0.07) / (D + 270) * 0.05
Calculation formula of double bead ground yarn length Naz: yarn length (cm / lap length) = 2280 / (NE + 3) / (gram weight + 100)
Double bead floor door width calculation formula Naz: door width = total stitches / transverse density (CM) transverse density / cm = 0.00145 * (NE + 2.5) * (gram weight + 65)
Double sided yarn length calculation formula Naz: yarn length / 100 pieces = 344000 / (NE + 1.6) / (gram weight + 100)
Calculation formula of double-sided cloth door width Naz: door width = total number of stitches / horizontal density (number of needle posts / cm) = 0.00118 * (NE + 3) * (gram weight + 110)
K1 --- 0.375 K2 --- 1.018 K3 --- 0.318 yarn diameter d = 1.3 / square root of metric count (metric count = 1.693 * British count)
1) Coil number of 1m2 = yarn length of 1m2 / coil length
2) ∵ number of circles per square meter = number of vertical rows per meter * number of horizontal rows per meter
The design formula of coil length and yarn diameter is based on the known coil number of 1 square meter and combined with the factors affecting coil spacing and coil height
3) K2 is the coefficient for adjusting different coil lengths of the same yarn count, and K3 is the coefficient for adjusting the same coil length of different yarn counts (yarn diameter d)
Calculation and conversion of code weight and gram weight
Code weight = edge width (CM) * square meter gram weight / 109.361 = edge width (in) * square meter gram weight / 43.055
OZ/YD=WIDTH × GM/M2 × zero point zero zero zero eight two
GM/㎡=(CPI × WPI × 50C)÷S/1 × zero point zero one eight three six seven
Change of yarn length after dyeing and washing
Jin0033: generally, the shrinkage of cotton is 1-1.5%; 4% for chemical fiber
