Question

Joining two or more layers of fabric using lock stitch is called

• A. Seam
• B. Seam finish
• C. Hem stitching
• D. Stitching

Hint:

• A seam} is the result of joining two or more pieces of fabric together, typically by a line of stitching.
• Stitching} is the general process; a stitch} is the individual unit.
• Lockstitch} is a common type of stitch used for seams.
• Seam finish and hem stitching are specific types of operations related to edges, not the primary joining of layers.

Answer 1

The Correct Option is A

Let's define the terms:

• Stitching: The general act of applying stitches (loops or interloopings of thread) to fabric, using a needle and thread. It can be for joining, decorating, reinforcing, etc.
• Stitch: A single loop or an interlacing of thread(s) that forms one unit of sewing. Lockstitch (Stitch Type 301) is a common type formed by two threads (needle thread and bobbin thread) interlacing.
• Seam: A line where two or more layers of fabric (or other materials) are joined together by stitching. The primary purpose of a seam is to join pieces of fabric. A lockstitch is very commonly used to create seams.
• Seam finish: A treatment applied to the raw edges of a seam allowance to prevent fraying and improve appearance and durability (e.g., overlocking/serging, binding, pinking).
• Hem stitching (Hemming): The process of finishing the raw edge of a fabric by turning it under and stitching it down to create a hem. Hemming uses stitches, and the result is a hem, which is a type of edge finish.

The question describes "Joining two or more layers of fabric using lock stitch". This precisely defines the formation of a seam. The lockstitch is the type of stitch used, and the result of joining fabric layers with stitches is a seam. \[ \boxed{\text{Seam}} \]