Silicone Dispersion
Thermodynamically stable aqueous dispersions containing amino-functional polyorganosiloxanes with droplet diameters below one hundred nanometers penetrate internal yarn structures to impart soft hand feel. Softening formulations categorized as organosilicon micro-emulsion deliver silicone polymer chains into inner fibre matrices rather than depositing solely on external surfaces. These clear chemical liquors function as durable fabric softeners in pad and exhaust finishing operations.
Excessive application shear or incompatible bath pH breaks emulsion stability and causes silicone oil spots on processed fabric.
Emulsification Mechanism
Synthesizing submicron droplets requires high-shear homogenization or phase inversion emulsification using specialized non-ionic surfactant blends. Formulation of an organosilicon micro-emulsion ensures spontaneous dispersion in water with optical clarity due to droplet dimensions being smaller than visible light wavelengths. The amino functional groups on the silicone backbone bind to negative surface charges on cellulose or synthetic fibres.
Internal lubricity increases as silicone chains reduce inter-fibre friction during deformation.
Particle Characterization
Dynamic light scattering instruments verify average particle size distribution in commercial chemical shipments. Quality control procedures for organosilicon micro-emulsion confirm particle size uniformity below fifty nanometers before mill bath preparation.
Exhaustion Boundary
Bath temperatures above sixty degrees Celsius or pH values above eight disrupt surfactant balance and trigger oil coacervation. Demulsified silicone deposits onto machinery walls and fabric surfaces as intractable oil stains.
