GSM FORMULA

GSM

IMPORTANT FORMULA FOR WEAVING

7.Formula:Total Ends

*Total Ends=EPI X F.F.Width


8.Formula:

*Reed space={(Total ends-50)/Reed count}/(Ends/dent X 2)


8.Formula:Beam width


*Beam width=(Total Ends/Reed count)/(Ends/dent*2)


9.Formula:Reed count

*Reed count=EPI*F.Fabrics width/Reed spece (For Plain)

*Reed count=EPI*0.9 (For Twill)

*Reed count for Bl prodn=Grey EPI-4%(For Normal Fabrics,1/1 Plain)
                                       =Grey EPI-6%(For Lycra Fabrics,1/1 Plain)

10.Formula:Consumption for fabrics

* Wt in kg(warp)=(T.E/768/Count/2.2046)+crimp%+Wastage%

* Wt in yds(warp)=(T.E/840/Count)+crimp%+Wastage%



* Wt in kg(weft)={(Reed spece+4)*PPI}/{768/Count/2.2046)}+crimp%+Wastage%

* Wt in yds(weft)={(Reed spece+4)*PPI}/{840/Count)}+crimp%+Wastage%

10.Formula:Individual color %

*Individual color %= (No.of Ends*100)/Total Ends of warp yerans

11.Formula:Individual color Qty in kgs

*Individual color Qty in kgs=(Total kgs*Color%)/100

IMPORTANT FORMULA FOR WEAVING: Wp in kg/yds=T.E/(840/Count/2.2046)& To convert kg/mtr to kg/yds= kg/mtr/1.08constant.

1.Formula: Count


*Count= L/LuX Wu/W(Indirect system)
*Count=Lu/LXW/Wu (Direct system)


2.Formula: Diameter of yarn

*Diameter of yarn= 1/28 root count


3.Formula: G.S.M

*G.S.M=(EPI/Count+PPI/Count)X 25.6


4.Formula: Cover factor

*Cover factor=(EPI/ root count+PPI/ root count)X 0.88 to 1(according to weave)


5.Formula: Grey EPI

Grey EPI=(F.EPI X F.Width)/G.Width


6.Formula: Grey Width

*Grey width=(F.EPI X F.Width)/G.EPI