Md. Ahasan Habib Hira presented on sizing technology to Sraboni Ahamed Bristi at Northern University Bangladesh on August 26, 2018. Sizing involves applying a size material like starch or gelatin to warp yarns to increase strength and abrasion resistance during weaving. It involves processes like warping, sizing with tension control, drying, and leasing before winding onto the weaver's beam. Natural and synthetic agents are used for sizing. While it improves yarn properties, it also has disadvantages like high costs, labor requirements, and potential stiffness.

1. Welcome to our presentation

2. Course code:Tex-2204
Course title: Weaving technology 1
Topic name: Sizing
Venue: Permanent Campus ,NUB Date:26/08/2018

3. Presented by:
Md:Ahasan Habib Hira
ID:BTX-170100437
Department of textile
Northern university
Bangladesh
Presented to :
Sraboni Ahamed Bristi
Lecturer
Department of Textile
Northern University
Venue: Permanent Campus ,NUB Date:26/08/2018

4. Venue: Permanent Campus ,NUB Date:26/08/2018

5.  Sizing is the process of applying the size material
on yarn. A generic term for compounds that are
applied to warp yarn to bind the fiber together and
stiffen the yarn to provide abrasion resistance
during weaving.
Exmp: Starch, gelatin, oil, wax
What is sizing:
Venue: Permanent Campus ,NUB Date:26/08/2018

6. To increase the smoothness of the warp yarn
To increase the strength of warp yarn
To increase the Yarn elasticity
To improve the breaking strength of the yarn
To remove projective fibers
To decrease hairiness
Objects of Sizing:
Venue: Permanent Campus ,NUB Date:26/08/2018

7. Sized warp must be strong and elastic.
The tension of warp yarn must be constant all the
time.
The process must be ensure the application of
required amount of size of the yarn.
The weaver beam must have a cylinder shape.
The sizing process must be efficient, economical.
must ensure the production of high quality size
warps.
Requitment of siazing:
Venue: Permanent Campus ,NUB Date:26/08/2018

8. Warping beam
↓
Sizing
↓
Drying
↓
Leasing
↓
Weavers beam
Sizing process involves
Venue: Permanent Campus ,NUB Date:26/08/2018

9. Natural sizing agents
Starch
Cellulose
prtinen
Synthetic Sizing Agent
Polyacrylates
Modified
Polyvinyl alcohols
Acid co polymer
Venue: Permanent Campus ,NUB Date:26/08/2018

10. Spreading tension.
Wet zone tension.
Let off motion.
 Dry zone tension.
 Winding on tension.
Inlet motion.
Tension Control in Sizing
Process:
Venue: Permanent Campus ,NUB Date:26/08/2018

11. Pure sizing: 3-10%
Light sizing: 11-16%
Medium sizing: 17-40%
Heavy sizing : Above 40%
Types of sizing
Venue: Permanent Campus ,NUB Date:26/08/2018

12. Venue: Permanent Campus ,NUB Date:26/08/2018

13. Venue: Permanent Campus ,NUB Date:26/08/2018

14. Venue: Permanent Campus ,NUB Date:26/08/2018

15. A
Recipe cooking:
Venue: Permanent Campus ,NUB Date:26/08/2018

16. Venue: Permanent Campus ,NUB Date:26/08/2018

17. Venue: Permanent Campus ,NUB Date:26/08/2018

18. Cost of land and machine is high
Requires lot of labors
Requires utility like gas, electricity etc
Cost of ingredients
The process is long and it takes time
 It increases yarn stiffness
Sometimes 100% size material cannot be removed
Disadvantages
Venue: Permanent Campus ,NUB Date:26/08/2018

20. Textile learner online link
Library book.
Reffrence