**Question 53 (Textile Technology & Fibre Science)**

The bending length of a nonwoven fabric in machine direction is two times the bending length in cross-machine direction. The ratio of flexural rigidities of this fabric in machine direction to cross-machine direction is __**8**__.

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**Given in the question**–

Let , **blending length** of fabric in **cross machine **direction(**L _{2})**=

**L**

Then,

**blending length**in the

**machine**direction(

**L**)=

_{1}**2L**

Let ,

**flexural regidity**in

**machine**direction=

**G**

_{1}Then,

**flexural regidity**in

**cross machine**direction=

**G**

_{2}G

_{1}/G

_{2}=

**?**

**Formula:**

Flexural regidity(G)=W x C

^{3}

Where, C is the bending length

i.e.

hence , G is directly proportional to the cube of the bending length

**(Answer)**