Properties of a Good Sizing Material
Environmentally safe (nonpolluting)
Good film former
Reasonable use economics
Penetration of yarn bundle
Elasticity
Good film flexibility
Good specific adhesion
Good frictional properties (lubricity)
Transparency
Bacterial resistance (mildew)
Reasonable strength
Controllable viscosity (fluidity)
Water soluble or water dispersible
Good hygroscopicity characteristics
Uniformity
Clean split at bust rods
Improves weaving efficiencies
No effect on drying
Reasonable extensibility
Recoverable and reusable (or treatable)
Low static propensity
No skimming tendency
Easily removed (desized)
Easily prepared
Lack of odor
No beam blocking
Compatible with other ingredients
Good abrasion resistance
Neutral pH
High fold endurance
Insensitive to high heat (over drying)
Low BOD
No build-up on dry cans
Reduced shedding
Rapid drying
No redeposition of size
Insensitive to changes in relative humidity
