摘要:
A toner includes binder of amorphous polymer material, such as an amorphous polyester material, and a crystalline polymer material, such as a crystalline polyester material, wherein the amorphous polymer material has an acid number that is greater than an acid number of the crystalline polymer material. Further, the toner may have a minimum fusing temperature of from about 75° C. to about 150° C. and a relative humidity sensitivity of from about 0.5 to about 10. A method of making toner particles is also indicated.
摘要:
A toner includes binder of amorphous polymer material, such as an amorphous polyester material, and a crystalline polymer material, such as a crystalline polyester material, wherein the amorphous polymer material has an acid number that is greater than an acid number of the crystalline polymer material. Further, the toner may have a minimum fusing temperature of from about 75° C. to about 150° C. and a relative humidity sensitivity of from about 0.5 to about 10. A method of making toner particles is also indicated.
摘要:
A polyester resin emulsion includes crosslinked polyester resin in an emulsion medium, the crosslinked polyester resin having a degree of crosslinking of from about 0.1 percent to about 100 percent. The emulsion can be formed by solvent flashing a mixture of a polyester resin, an initiator, a solvent, and an emulsion medium, wherein the crosslinked polyester resin has a degree of crosslinking of from about 0.1 percent to about 100 percent.
摘要:
A process for the preparation of toner comprising mixing a colorant dispersion in water, which dispersion is comprised of a colorant and an ionic surfactant with a resin latex; heating the resulting flocculent mixture with stirring at a temperature of from about 25.degree. C. to about 1.degree. C. below the glass transition temperature (Tg) of the latex resin to effect formation of toner sized aggregates; heating the resulting aggregate suspension in the presence of additional anionic surfactant, and which heating is at a temperature of from about 10.degree. C. to about 55.degree. C. above the Tg of the resin; cooling; adding a base component to the resulting slurry; filtering; and thereafter drying said toner.
摘要:
Toner particles are provided which may, in embodiments, include a core and a shell. In embodiments, charge control agents may be co-emulsified with a resin utilized to form a shell. The shell may prevent a crystalline resin in the core from migrating to the toner surface. Inclusion of the charge control agent in the shell itself may provide the resulting toner particles with desirable charge characteristics and sensitivity to relative humidity.
摘要:
A toner comprising toner particles, a polymer binder, at least one colorant and clay composites distributed in the polymer binder, wherein the clay composites comprise a polymer modified clay.
摘要:
A process which comprises reacting a polyester resin endcapped with hydroxyl moieties or groups with an organic acid anhydride at a temperature of from about 125.degree. C. to about 200.degree. C., thereby resulting in a polyester resin endcapped with acidic moieties or acid groups.
摘要:
A toner composition comprised of pigment, and a metallocene polymer. Also illustrated is a toner composition wherein the metallocene polymer is a metallocene polyester of the formula ##STR1## wherein R and R' are an alkylene or an arylene; M is the metal titanium; and wherein n and m represent the random segments of the polymer, and n is a number of from about 10 to about 1,000, and m is from about 1 to about 100.
摘要:
A toner composition is provided which contains a polyester resin with hydrophilic groups and hydrophobic end groups and a colorant, wherein said polyester resin is of the formula: wherein R is an alkylene group; X is an aromatic hydrocarbon; Y is selected from the group consisting of an alkali and an alkaline earth metal salt of an arylenesulfonate or an alkylenesulfonate; R′ is a hydrophobic group, and m and n represent the number of random segments of from about 50 to about 300 for n, and from about 20 to about 2,000 for m, and m is less than 20 times n.
摘要:
A method for making toners to include clay composites. The clay composites are incorporated into emulsion of toner and used in making toner via emulsion aggregation. Such toners may have a core and/or a shell and the clay composites may be included with the core, the shell or both.