Sizing process

For education purpose.
Shyamol Textile Engineering college

1. Shyamoli Textile Engineering College Jayed Hassan ID:TE-108/18

2. Wh a t i s S iz i n g ? The process of applying an adhesive coating on the warp yarn to minimize yarn breakage during weaving Sizing. is known as

3. Increase the elasticity Remove the projecting fibers Increase the smoothness of fibre Reduce hairiness of warp Yarn Increase the Strength of warp yarn Objectives of Sizing

4. St a rch Binder Softener Anti-Septic Agent Wetting agent Types of sizing ingredient

5. Adhesive Agent 01 02 03 04 05 To impart adhesion To increase stiffness & elasticity of warp yarn To increase strength of warp yarn To reduce extention percentage To increase smoothness of warp yarn E xam : P o t a t o , CMS ( C a r boxy Me t h y l a t ed Sta r c h ) , P VA ( P o l yviny l A lc o h o l ) .

6. Softener T o de c re a s e stif f ness 1 st function T o d e c r e a se f r ic t i o n a n d f l exibi l it y , 3 rd function T o i n c r e a se t he s m o o t hness of w a r p ya r n 2 nd function T o m a ke th e wa r p ya r n s oft a nd s l ipper y 4 th function Softener which are used in sizing warp yarn are soap, mineral oils, coconut oil, tallow, TRO, animal fats and japan wax.

7. t o p ro t e c t ya r n f r o m f ung u s o r b a c t eria . Contents 01 t o p rev e nt mi l d e w f o r m a ti on Contents 02 t o h e l p to s t ore t he s i z e d w a r p ya r n . Contents 03 Ant i sept i c agent A n t i s e ptic a g e nts a re P h e n o l, Ca r b ox y l ic a c id, s a l i c y l ic a c id. Function:

8. Wetting a g e nt w hi c h a re used in si z ing a re M a gnesium C h l oride, s oa p a nd su l ph a n o l. Wetting a g e nts a re used in Si z ing - T o a c hieve uniform distribution of si z ing s o l ution, T o is us e d to in c re a se size exha ust.

9. Types of siz i ng This types of sizing is done for unbleached fabric. 3-10% size ingredients are used on the weight of fabric. This types of sizing is used for Dyeing & Printing of woven fabric. 11- 15% size ingredients are used on the weight of fabric. This types of sizing is used for increase of strength & weight of fabric. 16-40% size ingredients are used on the weight of fabric. This types of sizing is used for increase the weight twisted & lower count yarn. Above 40% size ingredients are used on the weight of fabric. P u re sizing Light sizing Medi u m sizing Heavy sizing

10. S i zing Technique s Solvent Sizing High Press u re Sizing E m ulsion Sizing Hot Melt Sizing Fo a m Sizing Electrostatic Sizing 1 2 4 6 3 5

11. Si z i n g P rocess r r

12. Factor effecting the size Take-up percentage 05 03 01 02 04 Machine speed Degree of Size penetration Squeeze roller pressure V iscosity of the size recipe Lubrication

13. Size Box Le a se rod Ma i n parts of s i z i ng m a ch i ne Moisture Roller Creel Drying Cylinder V-reed

14. T H ANK Y OU