Seam

 

What is Seam?

A line along which two or more fabrics are joined by sewing. 

Seam Classification:

According to British Standard 3870: 1991, seam is classified as-

• Class 1-superimposed
• Class 2-lapped
• Class 3-bound
• Class 4-flat
• Class 5-decorative/channel
• Class 6-edge neatening
• Class 7-applied
• Class 8-others

Superimposed seam: 

This seam is constructed with a minimum of two pieces of fabric. One piece of fabric is fully imposed to another.

 Lapped Seam : 

Lapped seam is made with two or more pieces of fabric overlapping each other. Lapped seams are common when sewing side seams on jeans and dress shirts.

Bound Seams : 

A bound seam is one piece of fabric encompassing the raw edge of another piece of fabric.

Flat Seam : 

A flat seam is constructed by having two pieces of fabric meet precisely at their edges.

Decorative seam/Channel seam : 

This construction consists of a row or rows of stitches sewn through one or more plies of fabric.

Edge neatening Seams :

This seam is used to prevent the edges of the fabric from rolling or curling.

Applied seam(AP): 

They are mainly used to apply a decorative material to an edge or seam, such as the lace edging on sleeve.

Others:

This is commonly used for belts and belt loops.