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TPI TPM
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Tác giả:
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TPM = TPI x 39.37 TPI = TPM x 0.0254 TPM = Twists per meter TPI = Twists per inch
SPINNING : TPI = Twist Multiplier (TM) x √ Ne or TM x √ Hank TPM = Tex Twist Factor / √Tex
RKM value = Single Yarn Strength in gm = Lea CSP Yarn Tex 150
Yarn length in Meters = 1693 x Count in Ne x Weight in Kgs = 1.693 x Count in Ne x Weight in gms
Yarn count Ne = Yarn length in Meters = Yarn length in Meters
1693 x Weight in Kgs 1.693 x Weight in gms
Hank of Sliver or Roving = Sliver or Roving length in meters 1.693 x Weight in gms WRAPPING YARN COUNT Ne = 64.81
YARN COUNT AND SLIVER & ROVING HANKS 120 yards yarn weight in gms SLIVER HANK = 3.24 ROVING HANK = 8.1 6 yards Sliver weight in gms 15 yards Roving weight in gms
Yarn diameters in inches = 1 / (28 √Ne)
Resultant count ( N ) of two ply yarns (English count system ) N = ( N1 x N2 ) / ( N1 + N2 )
Yarn contraction % due to Twist = 2.67 x TM – 4.93
Untwisted Yarn Count = ( 100 x Twisted Yarn Count ) / ( 105 – 2.67 x TM )
TPM = TPI x 39.37 TPI = TPM x 0.0254 TPM = Twists per meter TPI = Twists per inch
SPINNING : TPI = Twist Multiplier (TM) x √ Ne or TM x √ Hank TPM = Tex Twist Factor / √Tex
RKM value = Single Yarn Strength in gm = Lea CSP Yarn Tex 150
Yarn length in Meters = 1693 x Count in Ne x Weight in Kgs = 1.693 x Count in Ne x Weight in gms
Yarn count Ne = Yarn length in Meters = Yarn length in Meters
1693 x Weight in Kgs 1.693 x Weight in gms
Hank of Sliver or Roving = Sliver or Roving length in meters 1.693 x Weight in gms WRAPPING YARN COUNT Ne = 64.81
YARN COUNT AND SLIVER & ROVING HANKS 120 yards yarn weight in gms SLIVER HANK = 3.24 ROVING HANK = 8.1 6 yards Sliver weight in gms 15 yards Roving weight in gms
Yarn diameters in inches = 1 / (28 √Ne)
Resultant count ( N ) of two ply yarns (English count system ) N = ( N1 x N2 ) / ( N1 + N2 )
Yarn contraction % due to Twist = 2.67 x TM – 4.93
Untwisted Yarn Count = ( 100 x Twisted Yarn Count ) / ( 105 – 2.67 x TM )