Weft Faced and Warp Faced Woven Fabrics

Weft faced fabrics are smooth than warp faced fabrics. The main reason is warp yarns are coated with size and wound on warp beam and connecting machines too tightly and occur low crimp and highly twisted strength yarns are used to avoid breaking warp beams yarns when woven preparatory process.  According to these rough properties we cannot get smoothness from warp faced fabric. But weft yarn has low tension, higher crimp and low twisted yarns usage is the reason to be smooth hence weft faced fabric has weft over warp points and it feel soft wet based softness and smoothness of fabric.

For an example sateen weave is weft faced fabric and satin is weft face fabric hence, in when checking smoothness by hand feeling we met sateen weave has higher smoothness than satin weave.

 

(ii)

In normal weaving process in lab practice I have seen warp yarn is coated with size layer and this layer has starch, cellulose derivatives, gelatin, glue, etc. Which are used to increase strength o warp yarn because if break warp yarn when weaving we have to re arrange warp beam and it is difficult to process. Therefore warp beam is prepared coating sizes and highly twisted yarn. But if we produce weft faced fabric we have to arrange more weft insertion and we have to look following matters.

·         Weft has higher crimp than woven then if we use weft face more we have higher yarn consumption and increase raw material cost.

·         Weft yarns have low strength than warp and if some case quickly weft yarn is break just like high tension and we have to rework

·         Sometime to increase weft face design we have to minimum conjugate warp yarn interlacing points hence, according to the low amount of higher tension warp yarns may break    

So according to the above factors weft face fabric difficult to produce ant therefore produced weft faced fabrics have higher price in fabric market.

 

(iii)

Plain fabric has higher tensile strength due to more interlacing points but low tearing strength and satin and sateen weave has higher tearing strength but low tensile strength due to lowest interlacing points. But both tearing and tensile strength and abrasive resistance of twill weave is high. For an example to produce denim trousers twill weave is used. In twill weave it is float produce only diagonal angle cerate these properties.  

But this abrasive resistant directly depending on diagonal weave design, direction of weaving just like S- twill, Z- twill, and when interlacing of yarn nesting and bedding of fabric, etc.