The Classification of Seam in Textile and Garment Manufacturing

By | October 5, 2015
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Classification of Seam 

Noor Ahmed Raaz
Specialized in Apparel Manufacturing
Owner and Editor in Chief Textile Merchandising
Asst. Prof., Department of Textile Engineering
Atish Dipankar University of Science & Technology
Email: textilemerchandising1@gmail.com

 

Seam Types or Classes:

A formal description of the configuration of a seam is called a seam type. The Seam may be of a hundred types, and these types are classified into six main classes. Also, in the present time, two more classes are used.

The following are the 8 classes of seam:

  • Seam Class-1: Super Imposed Seam
  • Seam Class-2: Lapped Seam
  • Seam Class-3: Bound Seam
  • Seam Class-4: Flat Seam
  • Seam Class-5: Decorative Seam
  • Seam Class-6: Edge Neatening
  • Seam Class-7: Applied Sea
  • Seam Class-8: Enclosed Seam

Seam Class-1 (Super Imposed Seam):

  • This is a most ordinary used seam.
  • This type of seam is formed by correctly placing the ends of the fabric on the other ends of the fabric and sewing them.
  • Generally, the seam ends are in the same direction.
  • Different types of stitches are used to form this type of seam.
  • The seam strength may be changed.
  • This seam can be used for joining the fabric and neatening the edge.

    Seam Class-1 (Super Imposed Seam)

Seam Class-2 (Lapped Seam):

  • The simplest seam is formed by lapping two pieces of fabric.
  • Two sewn ends of the fabric are in opposite directions and overlapping one ends on other.
  • Uses of this seam is very less because the threads draw off from the fabric edge and create the problem.
  • The seam thread may be damaged due to frictional resistance.
  • The seam strength is higher.
  • The possibility of seam slippage is very less.
  • Seam thickness increased.
  • Twin twin-needle sewn machine is used to prepare the seam.

    Seam Class-2 (Lapped Seam)

Seam Class-3 (Bound Seam):

  • Two fabrics are required.
  • Here, one edge of the fabric is bounded by the other fabric.
  • The binder fabric may be of different colors.
  • Widely used.
  • It can be applied for both functional and decorative purposes.
  • The folder must be required to produce a bound seam.
  • Mostly used for knit fabric than woven fabric.

    Seam Class-3 (Bound Seam)

Seam Class-4 (Flat Seam):

  • Two or more fabric ends are joined without overlapping.
  • The Seam can be made with the gap of the ends of the fabric for decorative purposes.
  • Generally twin needle sewing m/c is used to produce this type of seam where continuous binding can be made by covering thread between needle threads
  • Seam thickness is comparatively less.
  • Zigzag stitch causes sufficient stretch for knit fabrics.
  • Neat join forms.
  • Before sewing, Edge should be cleaned.

    Seam Class-4 (Flat Seam)

Seam Class-5 (Decorative Seam):

  • This type of seam is made by making one or more adjacent stitch lines in one or more layer of fabric.
  • Multi-needle sewing machine is used.
  • This type of seam is called decorative stitching.
  • This seam is produced and used to increase the beauty or decorative value of fabrics.

    Seam Class-5 (Decorative Seam)

Seam Class-6 (Edge Neatening):

  • This type seam is used to bind the edge of fabric, so that thread cannot be drawn off.
  • Various stitches are used in this type of seam.
  • It can be made by over lock machine.
  • If folder is used, the seam can be made easily.

    Seam Class-6 (Edge Neatening)

Seam Class-7 (Applied Seam):

  • Similar to lapped seam (Seam Class-2), but the joined component is extended limited on both sides from sewn line.
  • This is used for joining of different parts of garments with additional or extra materials such as lace, elastic braid, elastic etc.
  • Multi needle sewing machine and folder is used to produce this seam. It will be easier this function is involved.

    Seam Class-7 (Applied Seam)

Seam Class-8 (Enclosed Seam):

  • Mainly one piece of fabric is used.
  • The edges of fabric are sewn by folding in various ways.
  • Very used of folder to make the seam.
  • Seam is made in one time completed by twin needle machine and folder.

    Seam Class-8 (Enclosed Seam)

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