G03G9/08764

Brilliant toner, electrostatic charge image developer, and toner cartridge

A brilliant toner includes toner particles that include a binder resin having a ratio (Mz/Mn) of a Z average molecular weight (Mz) to a number average molecular weight (Mn) of 5 to 20 and a peak top molecular weight (Mp) of 3,000 to 10,000, and a flake-shaped brilliant pigment.

TONER AND EXTERNAL ADDITIVE FOR TONER

A toner includes toner particles and an external additive; the external additive includes an external additive A containing fine particles of a crystalline resin or fine particles of a wax; the crystalline resin and the wax each have an urethane bond or an urea bond; and the melting point of the crystalline resin and the melting point of the wax are each from 50 C. to 130 C.

TONER BINDER, AND TONER

The toner binder of the present invention contains a crystalline resin (A) and a resin (B) that is a polyester resin or its modified resin, the polyester resin being obtained by reaction of an alcohol component (X) and a carboxylic acid component (Y) as raw materials, wherein a temperature (Tp) of the top of an endothermic peak derived from the crystalline resin (A) as measured by a differential scanning calorimeter (DSC) is in the range of 40 C. to 100 C., and endothermic peak areas S.sub.1 and S.sub.2 during heating satisfy the following equation.


(S.sub.2/S.sub.1)10035(1)

S.sub.1 is an area of the endothermic peak derived from the crystalline resin (A) in the first heating process, and S.sub.2 is an area of the endothermic peak derived from the crystalline resin (A) in the second heating process, when the toner binder is heated, cooled, and heated.

ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE

An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent; and an external additive containing fatty acid metal salt particles, wherein a non-attachment rate representing a percentage of the fatty acid metal salt particles not attached to the toner particles before ultrasonic desorption treatment is 45% or less and a weak attachment rate representing a percentage determined by subtracting the non-attachment rate from a percent of the fatty acid metal salt particles not attached to the toner particles after ultrasonic desorption treatment is 55% or more.

Toner and two-component developer

Provided is [i] a toner including at least a colorant, a resin, and a releasing agent, wherein a spin-spin relaxation time (t.sub.2) of the toner at 90 C. obtained by Hahn Echo method of pulse NMR analysis is from 1.80 msec to 7.00 msec. Also provided is [ii] a toner according to [i], wherein the spin-spin relaxation time (t.sub.2) of the toner at 90 C. obtained by Hahn Echo method of pulse NMR analysis is from 3.80 msec to 5.90 msec.

Brilliant toner, electrostatic charge image developer, and toner cartridge
09658547 · 2017-05-23 · ·

A brilliant toner includes a toner particle that includes a binder resin, a flake-shaped brilliant pigment, and a layered inorganic substance, wherein a content of the layered inorganic substance is from 0.005% by weight to 2.0% by weight with respect to the toner particles, and 80% by weight or more of the layered inorganic substance is present in a portion being in a range of 5 nm to 20 nm from a surface of the toner particle.

Toner

Provided is a toner containing toner particles, each of which includes a binder resin containing a polyester as a main component, a colorant, and a wax, in which the binder resin includes a block polymer in which a segment capable of forming a crystalline structure and a segment incapable of forming a crystalline structure are bonded, the toner has a maximum endothermic peak from the binder resin, as determined by differential scanning calorimetry measurement, with a peak temperature in a specific range and with an endothermic quantity in a specific range, and the wax is an ester wax having a functionality of 3 or more.

Toner, image forming apparatus, process cartridge, and developer
09618865 · 2017-04-11 · ·

A toner, including: a colorant; and a binder resin, wherein a spreadability of the toner under a non-pressurized condition is 1.20 to 2.50, wherein a common logarithm of a storage modulus at 100 C. (G) of the toner is 4.0 [log Pa] to 5.0 [log Pa], and wherein a ratio of a loss modulus at 100 C. (G) to the storage modulus at 100 C. (G) of the toner (G/G=tan ) is 1.1 to 2.2.

BRILLIANT TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE

A brilliant toner includes toner particles that include a binder resin having a ratio (Mz/Mn) of a Z average molecular weight (Mz) to a number average molecular weight (Mn) of 5 to 20 and a peak top molecular weight (Mp) of 3,000 to 10,000, and a flake-shaped brilliant pigment.

BRILLIANT TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE
20170090321 · 2017-03-30 · ·

A brilliant toner includes a toner particle that includes a binder resin, a flake-shaped brilliant pigment, and a layered inorganic substance, wherein a content of the layered inorganic substance is from 0.005% by weight to 2.0% by weight with respect to the toner particles, and 80% by weight or more of the layered inorganic substance is present in a portion being in a range of 5 nm to 20 nm from a surface of the toner particle.