There are several types of seams used in garment construction, each with a specific purpose and application. Flat seams join fabric edges without extra thickness. Superimposed seams create neat, load-bearing seams. Lapped seams are used for rainwear. Lap felled seams involve one stitch for a strong seam. Bound seams produce a neat finished edge. Decorative seams add ornamental detail. Edge finishing seams neaten cut edges. Common seam problems include puckering, slippage, and skipped stitches, which can be addressed through tension and feed adjustments or material choices.

1. Different types of Seams, Seam Problems & their Solutions By Apparel United

4. Flat Seams In these seams, sometimes called Butt Seams, two fabric edges, flat or folded, are brought together and oversewn with a zig-zag lockstitch, chainstitch or covering stitch (Class 600). Application: The purpose is to produce a join where no extra thickness of fabric can be tolerated at the seam, as in underwear or in foundation garments.

5. Superimposed Seams These generally start with two or more pieces of material superimposed over each other and joined near an edge, with one or more rows of stitches. There are various types of seams within the SS class. Application: Superimposed seams is used to create neat load bearing seams for lingerie, shirts, etc.

8. Bound Seams These are formed by folding a binding strip over the edge of the plies of material and joining both edges of the binding to the material with one or more rows of stitching. Application: This produces a neat edge on a seam exposed to view or to wear.

9. Decorative Seams A series of stitches along a straight or curved line or following an ornamental design, on a single ply of material. More complex types include various forms of piping, producing a raised line along the fabric surface. Application: This type of seam is generally used for decorative purpose.

10. Edge Finishing Seams Finishing the edge of a single ply of material by folding it or covering it with a stitch. The simplest of these operations is Serging, in which a cut edge of a single ply is reinforced by overedge stitching to neaten and prevent fraying Includes other popular methods of producing a neat edge like hemming and Blind Stitch hemming. Application: The main purpose of this type of seam is to produce a neat edge.

11. Some common seam problems, related stitch problem & their solutions 1. Puckering 2. Seam grin 3. Seam slippage 4. Skipped stitches 5. Unbalanced stitches 6. Uneven SPI

12. Skipped Stitches Causes Solutions

13. Staggered Stitches Causes Solutions

14. Unbalanced or Variable Stitches Solutions Causes

15. Variable Stitch Density Solutions Causes

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