Thank you, this very good site. also I want to know calculation of yarn run in for tulle and marquisette (also marquisette 2 bar?). Any help for these ?
Dear sir please tel me about the run-in calculation for the in-lay stitch also.is am i right if while calculating in-lay if i count only one leg and half of the loop head?
hello sir, how are you? thanks for this knowledge sharing site. i wanted to know how to calculate the yarn run in for the lycra(Stretch Yarns).since i was observing some samples and i found very less run in for lycra,also i request you to please explain the relation of pre stretch of the stretch yarn and run in for the same,and also if possible then explain about how to decide the pre stretch of the lycra while warping them.
@ Deepak, The run-in for Lycra or others elastic yarn depend of the fabric construction,whether this fabric need high stretch with low run-in or less stretch mean more run-in and also the composition between Nylon and elastic may vary.
Usually the pre-stretch and final stretch during warping process will recommend from yarn manufacture.More big yarn count the final stretch for warping will less than smaller yarn count,the pre-stretch may vary according the condition and yarn properties.
Hello Sir, First I'd like to say thanks for your great contribution. I'm newbie in this industry and self studying. Could you pls tell me how to determine or calculate the lycra and nylon composition in powernet fabric when run-in values are known.
Hello Vanko,thanks for visiting,I will describe your request in next post.
16 March 2011 at 20:58
The relationships between fabric parameters and yarn run-in (yarn consumption) is an extremely important factor for production planning.This data allows the knitter to estimate his yarn requirements,predict his production rate.
The values needed to determine the yarn run-in :
Lapping,Gauge E (needles/inch) ,course per cm (CPC),needle thickness (d). Calculation :
Head of the loop = πd /2.2
d = needle thickness
Legs of the loop = 2 x S
S = 10 mm : course per cm (cpc)
[Image]
a = number of needle loops
b = number of needle gaps crossed by the sinker loop
c = number of sinker loops in the same wale
T = 25,4 mm : E (gauge)
"Warp Knitting | Calculation of Yarn run-in (mm/rack)"
7 Comments -
Thank you, this very good site. also I want to know calculation of yarn run in for tulle and marquisette (also marquisette 2 bar?). Any help for these ?
8 September 2010 at 16:55
Dear sir
please tel me about the run-in calculation for the in-lay stitch also.is am i right if while calculating in-lay if i count only one leg and half of the loop head?
30 November 2010 at 18:50
@ anonymous : if you know the chain notation for tulle and marquisette and than you can calculate the run-in accordingly.
@deepak : run-in for inlay :
mm/rack = 480(bT+cT).
3 December 2010 at 12:38
hello sir,
how are you? thanks for this knowledge sharing site.
i wanted to know how to calculate the yarn run in for the lycra(Stretch Yarns).since i was observing some samples and i found very less run in for lycra,also i request you to please explain the relation of pre stretch of the stretch yarn and run in for the same,and also if possible then explain about how to decide the pre stretch of the lycra while warping them.
9 December 2010 at 12:30
@ Deepak,
The run-in for Lycra or others elastic yarn depend of the fabric construction,whether this fabric need high stretch with low run-in or less stretch mean more run-in and also the composition between Nylon and elastic may vary.
Usually the pre-stretch and final stretch during warping process will recommend from yarn manufacture.More big yarn count the final stretch for warping will less than smaller yarn count,the pre-stretch may vary according the condition and yarn properties.
17 December 2010 at 16:23
Hello Sir,
First I'd like to say thanks for your great contribution. I'm newbie in this industry and self studying. Could you pls tell me how to determine or calculate the lycra and nylon composition in powernet fabric when run-in values are known.
11 March 2011 at 22:22
Hello Vanko,thanks for visiting,I will describe your request in next post.
16 March 2011 at 20:58