Overview of Stitch and Seam and Their Types

 Stitch and Seam

What is Seam?

The line of sewing of more than one layer of fabric or the line of joining of fabric. It is the process of joining two fabrics together

What is Stitch?

The unit of sewing or seaming is called a stitch

What is Seaming?

The attaching procedure of different components of a garment is called seaming

Properties of Seam or Sewing or Stitching

The following properties are necessary when a seam is performed.

• Strength
• Elasticity
• Durability
• Comfort

Difference Between Seam and Stitch

A seam is what you stitch. Seams are of eight types.
Two (or more) pieces of fabric (or other materials) are joined together to form a seam.
A stitch (the noun) is the loop or knot of thread that joins the two fabrics together in sewing.
To stitch (the verb) means to join the fabric by the act of sewing. Stitches are six types. Stich is the unit of sewing. 

Types of Seam

Mainly, there are eight ways.

Classification of Seam

1. Class-1, Superimposed seam

2. Class-2, Lapped seam

3. Class-3, Bound seam

4. Class-4, Flat seam

5. Class-5, Decorative seam

6. Class-6, Edge neatening seam

7. Class-7, Extra item addition seam

8. Class-8, Belt loop making seam

Quality of Seam

A: It should have a proper 

[1] Strength 

[2] Elasticity 

[3] Durability 

[4] Security

[5] Comfort, etc

Superimposed Seam

It is a simple joining of two layers of fabric. It may be done by plain m/c over-lock m/c or interlock m/c. these types of seams are used for joining the side seams of shirts, pants, etc.

Super Imposed Seam

Lapped Seam

It is the joining of two layers of fabric but after joining two edges the other two edges stay at opposite sides. It is done by 'feed of the arm m/c' this type of seam is used for joining the out seam of Jeans [ pants ] and also used for other purposes.

Bound Seam

It is a joining of two layers of fabric. In this process, one fabric is folded and the other is not. It is done by plain m/c with the folder. This type of seam is used for making genbol of Long sleeves [Shirts ], baby dresses, etc.

Flat Seam

It is the joining of two layers of fabric but one layer is not placed on the other, in the process two layers of fabric are stayed side by side and maintain the gap between the two layers. The two layers are joined by decorative or zig-zag stitches by using zig-zag sewing m/c plain m/c or two-needle double stitching m/c. this type of seam is used for manufacturing ladies' dresses mainly.

Decorative Seam

It may be one or two or more.

Edge Neatening Seam 

It is the joining of two or more layers of fabric but before joining, the edges are cut first then the edges are joined by over-lock sewing. The process is done by overlock sewing m/c.

Class-7 Seam

This seam is used for joining the Lace, Elastic, etc. with the fabric. Plain m/c or zig-zag stitching m/c are normally used for performing this process.

Class-8 Seam

This process is used for joining two edges but not two layers. The belt loop is the product of this process. Normally two needle chain stitching m/c with folder is used for performing this process or Belt Looping m/c can be used...

Definition of Stitching & Stitch

When the loop of one or more threads is joined by interlooping or interlacing is called stitching and the unc unit of ching is called stitch.

Types of Stitch

There are six ways to stitch

[1] Stitch Class-100 

(2) Stitch Class-200

(3) Stitch Class-300 

[4] Stitch Class-400

[5] Stitch Class-500

[6] Stitch Class-600

Classification of Stitch

Stitch Class-100 

When the stitch is constructed by using one needle thread only with the help of start looping is called stitch class-100 or chain stitch. This type of such is used for button attaching, blind hemming, etc.

Stitch Class-200

Only one needle thread is used to construct this type of stitch, it is like hand stitch, so it is called hand stitch also. This type of stitch is used for costly garments.

Stitch Class-300

This type of stitch is constructed by using two threads with the help of interlacing

. One thread comes from the needle so it is called needle thread and the other comes

from the bobbin, so it is called bobbin thread. The other name of this stitch is Lock Stitch.

This stitch is done by Plain M/c.

Stitch Class - 400

This type of stitch is formed by using two threads and it is joined by interlacing & interloping One thread comes from a needle so it is called a needle thread and the other comes from a looper so it is called a looper thread. The other name of Stitch Class-400 Malty Threads Chain Stitch. Chain stitch is faster (speedy ] than lock stitch and lock stitch is stronger than chain stitch. 

Stitch Class-500

A: The other name of this stitch is 'over edge stitch' or over-locking. This stitch is done for the prevention of fraying. It is done by three threads. Two threads are coming from the needle and one thread is coming from the looper. It is used for edge sewing.

Stitch Class-600 

A: The other name of this stitch is Covering Chain Stitch. This type of stitch is performed by flat lock m/c, minimum 3 threads are used for forming this type of stitch. One is called Needle Thread, another is Top Cover Thread, and the other is called Bottom Cover Thread. This type of stitching is mainly used for knit garment sewing.