Calculation of Different Fibre Percentage In Knitted Fabric

Normally fabrics are knitted with one kind of yarn but in some cases more than one type of yarn of different counts and combination (mixing of two different fibres) are used. One very common example is knitting of fleece fabric, which is knitted by using fine and course yarns, and one yarn is made of polyester and cotton. Another example is knitting of fabric by using spandex filament and cotton or pure polyester.  In such condition there is a requirement to mention exact percentage of different fibres in the fabric.

Find exact composition of different fibres in fleece fabric from the following data:

Yarn count front                                     30s of 100% cotton

Yarn count for loop                                 20s of 50:50 P/C

Consumption ratio                                  Front: loop= 2:1 (by weight)

                                                               Total Ratio= 2+1 = 3

Here we need 2Kgs 30s of 100% cotton for front yarn and 1 Kg 20s of 50:50 Cotton Polyster fibers for loop yarn

Front yarn     2 KGS 100 % cotton    Cotton 2000 grams

Loop yarn     1 Kg     50:50 P/C       Cotton 500 grams and Polyester 500 grams

Total 30^s of 100% cotton Percentage = (2/3) x 100 = 66.67%

Total 20^s of 100% cotton Percentage = (0.5/3) x 100 = 16.67%

Total 20^s of Polyester Percentage = (0.5/3) x 100 = 16.67%

Total 30^s of 100% cotton Required = Total Fabric Consumption x 66.67%

Total 20^s of 100% cotton Required = Total Fabric Consumption x 16.67%

Total 20^s of Polyester Required = Total Fabric Consumption x 16.67%