2. What is a Seam?
A stitch line where fabrics are joined together by various fabric arrangements is called
a seam.
Different types of seams in sewing:
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 (Attaching of separate items)
Seam class-8 (Single ply construction)
3. Seam class-1: Super
imposed seam Seam is achieved by two or more separate pieces of fabric sewing together
The fabric ends are in same direction.
This class seam can be sewn a variety of machine. E.g: Lock stitch or overlock
m/c.
Used to create neat load bearing seams for lingerie, shirts, etc.
4. Seam class-2:
Lapped seam
This type of seam is achieved with two or more pieces of
fabric over lapping each other.
Tow sewn ends of the fabric are in opposite direction.
Mostly two needle chain stitch machine is used.
Seam under this class is very strong
Uses: Inside seam of jeans and dress shirts, rain wear etc
5. Seam class-3: Bound
seam A bound seam is one piece of fabric encompassing
the raw edge of another piece of fabric.
Some time used as decorative purpose.
Mostly used for knit fabric than woven fabric.
The binder fabric may be of different colors.
Uses: Neckline of a t-shirt, Yoke joint in the shirt waist
band, under wire.
6. Seam class-4: Flat
seam Two or more fabric ends are joined
without overlapping
Seam thickness is comparatively less.
Zig-zag stitch may be produced.
Edge should be cleaned before sewing to
avoid trying.
Uses: Intensively used in under garments in
knit wear.
7. 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.
Uses: Used in pant or other dresses.
8. 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.
Uses: Mostly used knitted garments and
hemmings.
9. Seam class-7 (Attaching of
separate items)
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 .
Multi needle sewing machine and folder is
used to produce this seam. It will be easier
this function is involved.
Uses: Extra materials such as lace, elastic
braid, elastic etc.
10. Seam class-8 (Single ply
construction)
Mainly one piece of fabric used.
This class is commonly used for waist belt
and loop belt.
The edges of fabric are sewn by folding in
various ways.
Seam is made in one time completed by
twin needle machine and folder
Uses: Mainly used waist Belts and Belts
loop