###### Question 41 (Textile Engineering & Fibre Science)

A square plain jammed woven fabric of 0.5 mm thickness is to be produced from polyester yarns. Assuming circular yarn cross-section, the number of picks per cm in the fabric on the loom is approximately

(A) | 13 |

(B) | 18 |

(C) | 23 |

(D) | 28 |

###### Answer / Solution

Square plain jammed woven fabric-

Thickness(t)=**0.5 mm**

Assuming circular crossection

Number of **picks per cm**=**?**

Formula:

P=DSin

Where, P is the pick spacing and D is the diameter**D=d _{1}+d_{2}=t**

**d**is the warp diameter

_{1}**d**is the weft diameter

_{2}and

**t**is thickness

per mm

**Picks per cm(PPCM)=23 (Answer,rounded off to one integer number)**

Option C is correct