Following ..........fibre and ...............structure combinations can be preferred for vegetable packing.

The choice of sewing thread for a 67/33P/C blend is

Ratio of the single yarn strength of same count sewing yarn to the fabric yarn.

'Whipping' operation is carried out after............operation

The over-lock sewing machine may run upto........rpm.

Which of the following is not the factor of woven fabric seam puckering ?