Process of preparing solid developer for electrostatic latent images
Abstract
Abstract A PROCESS FOR THE PREPARATION OF A SOLID ELECTROSTATOGRAPHIC DEVELOPER MATERIAL COMPRISING PROVIDING TONER PARTICLES CAPABLE OF BEING ELECTROSTATICALLY COATED ON A CARRIER SURFACE, THE TONER PARTICLES HAVING A BLOCKING TEMPERATURE OF AT LEAST ABOUT 110*F., A MELT VISCOSITY LESS THAN ABOUT 2.5X10**-4 POISE AT TEMPERATURES UP TO ABOUT 450*F., THE TONER PARTICLES INCLUDING A COLORANT, A THERMOPLASTIC RESIN, A SOLID ADDITIVE HAVING A MELTING POINT BETWEEN ABOUT 115*F. AND 270*F., FORMING THE TONER PARTICLES INTO PARTICLES HAVING A SIZE RANGE OF UP TO ABOUT 30 MICRONS, AND THERE AFTER TUMBLING THE PARTICLES WITH FROM ABOUT 0.002 PERCENT TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE PARTICLES, OF AT LEAST ONE SOLID, STABLE HYDROPHOBIC METAL SALT OF A FATTY ACID UNTIL THE METAL SALT IN UNIFORMLY MIXED WITH AND IS AVAILABLE AT THE EXTERNAL SURFACES OF THE PARTICLES.
Inventors
- 👤 B Jacknow
- 👤 J Moriconi
Bibliographic Details
Claims Analysis
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