Patent · US Expired

Process for image production containing the heat-and-pressure fixing of a still wet or moist toner image

US4842972A · kind A · utility

14Cited by
4References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 1987
Grant dateJun 27, 1989
Priority date
Expiry dateMay 15, 2007

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G13/20
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a process of image production by the steps of developing an electrostatic charge pattern with toner particles comprised of coloring matter in a thermoplastic resin binder and dispersed in a carrier liquid and fixing the pattern-wise deposited toner particles while still damp with said carrier liquid on a support by simultaneously subjecting the same to heat and pressure, the toner particles have at 120.degree. C. a melt viscosity when dry of from 500 to 100,000 Pa.s, a mean average diameter of from 0.1 to 5 .mu.m, and a ratio of coloring matter to resin binder of from 1/1 to 1/9 by weight.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.