Hello all

I will be very greatfull if someone can teach me how to calculate the yarn consumption for making a fabric

For examle: how many Kgs of yarn  will i need to make 1000 meters of fabric

Comments

Wed, 08/07/2013 - 20:36

laurafry

Well, that sort of depends.  Which yarn?  How wide?  How many epi/ppi?  Which weave structure?

The basic forumula is number of ends per inch (or cm) times the width in the reed times the length of your warp.

cheers,

Laura

Wed, 08/07/2013 - 21:11

Sara von Tresckow

Using Laura's recommendation of determining warps per inch and picks per inch - figure out how much yarn is needed for

a. one yard of warp at your designated weaving width (warps per inch times weaving width times one yard plus 10% for takeup)

b. one yard of weft picks (width times picks per inch plus 10% for takeup)

Multiply results by number of yards woven plus shrinkage expected.

Add one yard to the warp calculation for loom waste.

Wed, 08/07/2013 - 22:03

JPMorabito

What mill are you working for? Or looking to work for?

Like both Laura and Sara have said, these calculations are dependent on the warp and filling yarns, sett, width, length, etc. You need to take the entirety of the construction into consideration. Other determining factors would be loom type and piece size (and thus loom waste), warping method and mechanism, etc. Suffice to say, there are inumerable factors to consider in the equation.

Wed, 08/07/2013 - 22:33

laurafry

Watched some of the video clips on your website JP - very interesting.  :)

cheers,

Laura

Wed, 08/07/2013 - 23:27

JPMorabito

Really lovely of you to check out my work! Thanks!

Woven videos away!

Fri, 08/09/2013 - 14:32

vinit jain

thank you all,for you kind reply

i can give you an example for that,like i need to manufacture a yarn dyed woven fabric of the quality,Count of the yarn is 40'sx40's and the ends is 112 and the picks is 76 and the width of the fabric is 64" and the length will be 500 meters made in a rapier loom

it will very greatfull if some one can help and explain me on this that how much yarn consumption will be needed

Fri, 08/09/2013 - 14:35

vinit jain

hey hii JPMorabito

Please send me link of the videos,as i am very new to this field i will have learn from the basic

Fri, 08/09/2013 - 14:46

Sara von Tresckow

It sounds as though you have access to a textile mill. Modern mills have software now that will do the calculations you need to make.

The previous suggestions were for a handloom with turned selvedges. For an industrial rapier loom, you'll need extra weft material to reach the outside edge and there may be waste factors in both warp and weft that you need to include.

Any modern mill will have CAD software that is capable of computing the amount of wholesale yarn you'll need for your project. I own Pointcarre dobby module and if one enters the correct parameters, weight of yarns involved, etc., the program will indicate how many kilograms of what you'll need. You should contact the mill where you wish to have this cloth produced and work with them to determine your quantities. When I did 15 yards of 60" fabric in a mill setting, it took about a kilogram of weft yarn to produce 4+ yards of fabric - for 500 yards, we're talking like at least 120 kilograms just for the weft - those are calculations that are not normally handled by handloom weavers.

Fri, 08/09/2013 - 23:19

JPMorabito

The videos are not instructional, they won't help you in what you're trying to do. 

Where is the mill located? Are the looms computer interfaced or mechanical? Are you working for the mill? Or are you looking to have product woven? The mill should be able to do these calculations for you. With industrial weaving there are far too many factors to consider to give you an accurate answer. Yes, CAD software like pointcarre or nedgraphics can calculate the amount of raw material you need. Do you have access to CAD software? I would recommend working with a mill technician to get the answers you need. Now,  if you absolutely have to do these calculations yourself, here are a few things to keep in mind:

Warp Sett, Total Warp Design Ends, Warp Selvedges, Selvedge Weave, Selvedge Waste, Warp Yarn Type and Weight, Filling Yarn Types and Weights, Picks per Inch, Box Motion (if using different sized wefts), Weave Structure, Piece Size, Tye on Method and Tye in Method, etc

I hope this helps.