Toners containing alkyl pyridinium compounds and their hydrates
AssigneeXerox Corporation
InventorChin H. Lu
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Abstract
Disclosed is a positively charged developer comprised of a toner and an alkyl pyridinium compound and its hydrate of the formula ##STR1## wherein A is an anion selected from halides such as chlorine, bromine, iodine, sulfate, sulfonate, nitrate and borate, and R is a hydrocarbon radical containing from about 8 to about 22 carbon atoms and preferably from 12 to 18 carbon atoms.
Claims12
A positively charged dry particulate electrostatic toner composition in combination with a particulate carrier, said toner consisting essentially of a resin component, a pigment component and from about 0.1 to 10 percent based on the weight of toner of an alkyl pyridinium compound or its hydrate of the formula:
- ##STR3## wherein R is a hydrocarbon radical containing from about 15 to about 18 carbon atoms, and A is chloride or bromide.
A method of imaging comprising forming a negative electrostatic latent image on a photoreceptor, contacting the image with a positively charged dry particulate electrostatic toner, and carrier, the toner consisting essentially of a resin material, a pigment material and about from 0.1 to 10 weight percent based on the weight of toner of an alkyl pyridinium compound or its hydrate of the formula:
- ##STR4## wherein A is chloride or bromide and R is a hydrocarbon radical containing from about 15 to about 18 carbon atoms, and subsequently transferring the developed latent image to a permanent substrate and permanently affixing the image thereto.
Dependencies are inferred from the claim text.