Metallic soap as adjuvant for electrostatic liquid developer
AssigneeE. I. Du Pont de Nemours and Company
InventorTorence J. Trout
Life of this patent
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Abstract
Electrostatic liquid developer consisting essentially of (A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount, (B) thermoplastic resin particles having a metallic soap as defined dispersed therein and average particle size by area being less than 10 .mu.m, and (C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
Claims24
An electrostatic liquid developer having improved charging characteristics consisting essentially of
- (A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount.
- (B) thermoplastic resin particles having dispersed therein a metallic soap, the resin particles having an average by areas particle size of less than 10.mu.m, and
- (C) a nonpolar liquid soluble ionic or zwitterionic charge director compound.
Dependencies are inferred from the claim text.