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Liquid toner

Liquid toners are suspensions of toner particles in a fluid carrier. The carrier is typically a hydrocarbon. Dielectric, chemical, and mechanical properties of the Hquid must be compatible with the photoreceptor, the suspended toner particles, and the materials of the development equipment. Liquid toners are capable of producing higher resolution than dry toners because of the smaller (3—5 -lm) particle size achievable. Development of the latent image occurs as it passes through a bath of toner and the charged particles are attracted to the oppositely charged surface. [Pg.52]

Dispersions of finely divided solids in non-aqueous media have been important for paints, inks, reinforced polymers and lubricating oils, but with the development of liquid toner systems and "ultra-structure" processing of ceramics as fine powders dispersed in organic media, the understanding and optimization of such systems is more important than ever. [Pg.331]

Liquid toners (colloidal dispersions in non-conductive liquids)... [Pg.150]

Electrostatic stability plays a dominant role in many separation processes, such as filtration of industrial wastewaters. Coagulation aids (known as coagulants) are routinely used to improve the effectiveness of separation processes in such cases. Polymer-induced stability is often the method of choice, particularly in the case of concentrated dispersions for example, many pharmaceutical preparations, paints, inks, and liquid toners depend on surfactants or polymer additives for ensuring stable preparations. We see in Section 13.2 that in the case of concentrated dispersions both thermodynamic and kinetic issues often become very important. [Pg.576]

Electrostatic films are non-silver films having speeds comparable to silver films and having high resolution as well. An electrostatic charge makes them light sensitive, after which a liquid toner brings out the image. [Pg.122]

There are very few commercial implementations of electrostatic inkjet, though these are increasing. Electrostatic inkjet (of which the most widely known is Tonejet by TTP) is characterized by drops being drawn from an orifice under the influence of an electrostatic field. This field, acting between an electrode and the orifice, attracts free charges within the ink (sometimes described as a liquid toner) to its surface in such a way that a drop is produced when the electrostatic pull exceeds the surface tension of the ink (Fig. 4). As this technique relies on the attraction of free charges, the ink is required to be conductive. [Pg.8]

Figure 20. Electrophoretic liquid development apparatus. Key 1, photoconduc-tive insulator 2, liquid toner suspension 3, toner suspension enroute to development zone and 4, developed image. (Reproduced, with permission, from Ref. 2.)... Figure 20. Electrophoretic liquid development apparatus. Key 1, photoconduc-tive insulator 2, liquid toner suspension 3, toner suspension enroute to development zone and 4, developed image. (Reproduced, with permission, from Ref. 2.)...
Liquid toners are characterized by carbon black particles (size <2pm) or dyes, and sometimes polymers, which are suspended in a liquid carrier used to create the images. Liquid toners appear to dye the individual paper fibers. Liquid toners are often encountered in the so-called Indigo process. [Pg.1732]

Liquid toners penetrate into paper fibers and appear as a thin coating through which paper fibers can be seen quite unmistakably. Liquid toner copies can sometimes be mistaken for documents produced by other forms of printing (for example, an ink jet printer or an inked stamp). Microscopic examinations, at a magnification of 100 x, can also discriminate the toner s methods of fusion with the paper substrate. [Pg.1733]

The construction was completed some time in 1988. At its peak, DXI employed around 300 people. About 60 of these had come from DuPont, 30 from Xerox, and the remainder was hired for the new company. Its mission was to develop technology for graphic arts applications for DuPont and for office applications for Xerox. In all cases, the new technologies would employ electrostatic liquid toners, which were to be manufactured at DXI, and in time, a manufacturing line for toners was designed and built. DXI also was to undertake contract work for affiliated companies, e.g., Fuji Xerox. [Pg.145]

A chemical division, headed by Dubin was primarily involved with developing a line of liquid toners and in coordinating preparation and evaluation of the film masters,... [Pg.145]

A lesser effort was directed at a copier working with liquid toners under the direction of J. Osterhut. [Pg.145]


See other pages where Liquid toner is mentioned: [Pg.180]    [Pg.150]    [Pg.295]    [Pg.241]    [Pg.242]    [Pg.285]    [Pg.302]    [Pg.316]    [Pg.316]    [Pg.200]    [Pg.1733]    [Pg.1733]    [Pg.307]    [Pg.307]    [Pg.307]    [Pg.308]    [Pg.308]    [Pg.308]    [Pg.135]    [Pg.2158]    [Pg.337]    [Pg.270]    [Pg.264]    [Pg.152]    [Pg.249]    [Pg.15]    [Pg.143]   
See also in sourсe #XX -- [ Pg.270 ]

See also in sourсe #XX -- [ Pg.249 ]




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