摘要:
Dry toner particles with a resinous matrix containing a mixture of a polymer (LPC) with low softening point and tg&dgr;>3, modified by a modifier (D) selected from the group consisting of long chain aliphatic compounds with a reactive end group and having between 20 and 250 carbon atoms and a polysiloxane, said modifier and said polymer being present in a molar ratio LPC/D between 0.8 and 1.25 and a non-linear polymer with a softening point TsB such that 110° C.≦TsB≦135° C. The toner particles further contain a wax chosen from waxes having a melting point near to the softening point of the branched polymer B.
摘要:
Dry toner particles with a resinous matrix containing a mixture of a polymer (LPC) with low softening point and tg.delta.>3, modified by a modifier (D) selected from the group consisting of long chain aliphatic compounds with a reactive end group and having between 20 and 250 carbon atoms and a polysiloxane, said modifier and said polymer being present in a molar ratio LPC/D between 0.8 and 1.25 and a non-linear polymer with a softening point T.sub.sB such that 110.degree. C. .ltoreq.T.sub.sB .ltoreq.135.degree. C. The toner particles further contain a wax chosen from waxes having a melting point near to the softening point of the branched polymer B.
摘要:
The present invention relates to a liquid toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific liquid toner composition allowing transfusing of the toner image from a temporary carrier to the final substrate at low temperature.
摘要:
Dry toner particles comprising an amorphous complex macromolecular compound that contains in its macromolecular structure,(i) a polyester backbone (A) having a Tg of at least 45.degree. C. and(ii) at least one polymer chain (B) being attached to the backbone, either terminally and/or in a side-chain, the polymer chain (B) being derived from a polymer selected from the group consisting of polyolefines and polyolefines containing alkoxy groups which on itself has an average molecular weight by number (M.sub.avg) so that 1900.ltoreq.M.sub.avg
摘要:
An electrostatic method for producing a master image for decorating ceramic, enamel or glass objects comprising the steps of:providing a temporary support having a surface with release properties,image-wise depositing charged toner particles, having a volume average particle size d.sub.v50t, such that 5 .mu.m
摘要:
Toner particles are provided, having an average volume diameter d.sub.vt and comprising a binder resin with melting point TSM.sub.t, and comprising polymeric beads incorporated in the bulk of the toner particles, characterized in that the polymeric beads have i) a melting point TSM.sub.p in .degree.C., such that TSM.sub.p .gtoreq.TSM.sub.t +10.degree. C. and ii) an average volume diameter d.sub.vp such that 0.20.ltoreq.d.sub.vp /d.sub.vt .ltoreq.0.75.
摘要:
A dry toner powder the toner particles of which are triboelectrically positively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain:(1) one or more triboelectrically positively chargeable thermoplastic resins serving as binder having a volume resistivity of at least 10.sup.13 .OMEGA.-cm, and(2) at least one substance having a volume resistivity lower than the volume resistivity of said binder, andwherein said substance(s) (2) when present in said binder in a concentration of 5% by weight lower(s) thereof the volume resistivity of said binder by a factor of at least 3.3, and wherein said toner powder containing particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 .mu.m but not lower than 1 fC/10 .mu.m, and said toner powder under the same triboelectric charging conditions but free from said substance(s) (2) then has an absolute median q/d value (x) at least 50% higher than when said substance(s) (2) is (are) present, and wherein the distribution of the charge/diameter values of the individual toner particles is characterized by a coefficient of variation .nu..ltoreq.0.33.
摘要:
An amorphous complex macromolecular compound is provided hat comprises in its macromolecular structure,(i) an amorphous polycondensation backbone, the corresponding backbone polymer having a Tg of at least 45.degree. C. and(ii) at least one polymer chain attached to the backbone, either terminally and/or in a side-chain, this polymer chain being derived from a polymer which on itself has an average molecular weight by number (M.sub.avg) so that 400.ltoreq.M.sub.avg .ltoreq.4000, a melting point between 50.degree. C. and 150.degree. C. and a melting range of at most 15.degree. C.There are also provided methods for the production of the amorphous complex macromolecular compound.Further are provided toner particles and toner receiving substrates comprising the amorphous complex macromolecular compound mentioned above.
摘要:
There are provided dry toner particles wherein the toner resin comprises more than 10% by weight of one or more polysiloxane modified resins. In this resin the polysiloxane moieties are attached to the other polymeric moieties (POL) of said copolymer over an ether group or an ester group. In a preferred embodiment the toner resin of the dry toner particles consists of one or more polysiloxane modified resins.
摘要:
The present invention relates to a dry toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific toner composition allowing fusing of the toner image to the final substrate at low temperature.