Sewing Thread - Types of Sewing Thread being Used in The Garments Industry of Bangladesh

Sewing ThreadTypes of Sewing thread being used in the garments industry of Bangladesh 1.Polyester Corespun Thread 2.Spun Polyester Thread 3.Staple Spun Cotton Thread 4.Textured Polyeste

Southeast University

Department Of Textile Engineering

I/A 251,252 Tejgaon Dhaka Bangladesh

prepared by : Mazadul Hasan sheshir

Sewing Thread

Types of Sewing thread being used in the garments

industry of Bangladesh

1.Polyester Corespun Thread

2.Spun Polyester Thread

3.Staple Spun Cotton Thread

4.Textured Polyester Thread

5.Polyester Cotton Corespun Thread

6.Trilobal Polyester Thread

Sewing Thread (Contd.)

1.Polyester Corespun Thread:

This type of thread is produced by spinning staple

polyester fibre around a core of high tenacity continuous filament polyester in yarn-spinning operation Two or

more of these composite yarns are then twisted together

to give the necessary size and tensile strength

e.g Epic(Coats)

Uses: Mainly used in topstitching of shirts, blouses,

trousers, sportswear , jeans & work clothes

Sewing Thread (Contd.)

Key Characteristics :

- Exceptionally strong

- The continuous filament core (Having high tenacity)

provides superior strength while the staple polyester

cover helps to protect the inner core from damage due

to needle heat

- Its resistance to abrasion helps ensure long seam life in

a wide variety of materials

- Fine threads can be used for delicate fabric without

compromising on strength, thereby avoiding problems like seam pucker

Sewing Thread (Contd.)

2 Spun Polyester Thread:

Staple polyester fibres are spun into polyester yarn Then two or more of spun polyester yarns are twisted together

to produce spun polyester thread

e.g Astra (Coats)

Key Characteristics:

- High tenacity of polyester ensures greater strength and thereby high abrasion resistance

- Very least amount of shrinkage (less than 1%) compared

to cotton thread

Uses: Mainly for overedging Also used for general seaming

of shirts, trousers, knitwear, jackets, blouses etc

Sewing Thread (Contd.)

3 Staple Spun Cotton Thread:

Normally long staple cotton fibres are spun into cotton yarn Then two or more ply of spun cotton yarn are twisted

together to produce spun cotton thread.

e.g dymax (Coats)

Key Characteristics:

elongation compared to those in synthetic thread , therefore they need relatively light sewing tension and high stitch

densities.

Sewing Thread (Contd.)

3 Staple Spun Cotton Thread:

- During sewing , cotton thread is not damaged at high

temperature generated by needle

- 100% cotton thread is mercerized (treatment with caustic solution under tension) to provide greater luster and

higher strength

Uses: Mainly used in sewing cotton garments that are to be post dyed

Sewing Thread (Contd.)

4 Textured Polyester Thread:

- Made from textured continuous polyester filament

(Note- texturing means modification by applying crimp to the filament) e.g Gramax (Coats)

Key features:

- Provides high softness and comfort

- High extensibility and seam strength enhance higher seam security

Uses: Mainly used in “next to the skin” seams for high

softness e.g underware, swimwear, babywear etc

Also widely used in overlocking and covering stitches for high extensibility and seam security

Sewing Thread (Contd.)

5 Polyester Cotton Corespun Thread:

- Made of polyester filament in the core and staple cotton fibre which wraps polyester filament Two or three plies of this yarn are twisted together to make thread

e.g dual duty (Coats)

Key features:

- This thread has been developed to improve the properties cotton and to get the opportunities of both cotton and

polyester fibre

- Very low shrinkage, good strength and cotton core protects poly core from needle heat and high ironing temperature Uses: fine cotton denim shirts , outdoor wear etc

Sewing Thread (Contd.)

6 Trilobal Polyester thread:

- Newly developed polyester fibre to improve the dullness of usual polyester fibre

-Trilobal poly is a multiple filament, twisted, high-sheen

continuous fiber thread It has the bright appearance of rayon or silk Triangular shaped fibers reflect more light and give an attractive sparkle to textiles

Uses: embroidery for garment