Woven Sack (Raffia) Tutorial - Tape Plant Formula and important calculations



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Spacer Size (mm) = (Stretching Ratio) ^1/2 x Width of Tape
Stretching Ratio = ( Spacer Size/Tape Width )^2
Stretching Ratio = Stretching Godet Speed / holding Godet Speed
Production Kg/hr = Denier x Final Line Speed x No of Tapes x 60 / (9000x1000)
Production Kg/hr = Denier x Final Line Speed x No of Tapes/ 150000
Elongation % = Tape Final Length - Initial Length x 100 / Final Length
Tape Thickness Stretched = denier / (9000 x Tape Width x Density)
Unstarched Tape Thickness = (Stretch Ratio )^1/2 x stretched Tape Thickness
Denier Setting Formula = Holding Speed x Actual Denier / Required Denier
Relaxation Speed = Stretching Speed - Annealing Speed x 100 / Stretching Speed
Screw Speed Formula = Motor Speed x Motor Pulley  Diameter / ( Gear Ratio x Gera Box Pulley Diameter)
Useful Width ( Flat Film) = Film Width - ( 2 x Spacer size)
Main Motor RPM = (Gear Ratio X Screw RPM X Gear Box Pulley Dia)/(Motor Pulley Dia.)

Comments

  1. AnonymousAugust 23, 2022 at 11:31 AM

    Sir denier is 930 filler is 35% than what is the tape strength please

    ReplyDelete
  2. AnonymousDecember 4, 2022 at 12:25 AM

    Vivek Sharma

    ReplyDelete
  3. AnonymousApril 2, 2023 at 5:53 PM

    Okkkkk

    ReplyDelete
    Replies
    1. AnonymousDecember 13, 2023 at 8:43 AM

      Knowledge absorbed, Extruder speed up does it contribute to Change and Varietion in Denier?

      Delete
  4. AnonymousOctober 6, 2023 at 8:44 PM

    Sir denier is 860 filler is 23% than what is the tape strength please

    ReplyDelete
    Replies
    1. AnonymousOctober 18, 2023 at 12:42 PM

      depend karta hai aap raw material koun sa use kar rahe hai aur uska MFI kitna hai. uske baad = air gap, cutter, water bath temp. and ratio in sab ko dekhna padta hai ki kitne temparature me chalna chahte hai uske baad hi final hota hai ki str kitna aayega
      lekin simple sa tarika hai ki jitna DNR / 2 = 860/2= 4.23 aana chahiye

      Delete
    2. AnonymousFebruary 23, 2024 at 8:08 PM

      If2200 DNR than find strength sir

      Delete
    3. AnonymousMarch 10, 2024 at 1:51 PM

      strength = Denier* Cutter size - filler %

      Delete
  5. AnonymousFebruary 23, 2024 at 8:09 PM

    Tape width 2.3 fillar 8%

    ReplyDelete

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