Question

what type of using machine is used in reinforcing the opening and closing pockets​

Answer 1

Answer:

Bar tracking machines.

Explanation:

The term "bar tack" in sewing refers to a series of stitches used to reinforce sections of a garment that may be subject to stress or additional wear. It can alternatively be spelt "bar-tack" or "bartrack." Pocket openings, buttonholes, belt loops, the bottom of fly openings, tucks, pleats, and collar corners are typical locations for bar tack stitches.  You can sew bar tacks using zigzag or whip stitches, either by hand or on a machine. The method for sewing a bar tack basically entails sewing multiple long, closely spaced stitches along the line of the bar that will be constructed, then sewing short stitches through the cloth and over the bar in a direction perpendicular to the long stitches.  The standard bar ranges from 116 to 18 inch.

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