摘要:
A toner including a colorant and a first binder resin is provided. The first binder resin has first and second glass transition points at a temperature Tg1 of −20 to 20° C. and a temperature Tg2 of 35 to 65° C., respectively, measured by a differential scanning calorimeter at a heating rate of 5° C./min. A ratio h1/h2 of a baseline displacement h1 observed in the first glass transition point to a baseline displacement h2 observed in the second glass transition point is less than 1.0. The first binder resin has a structure in which a first phase is dispersed in a second phase. The first and second phases consist of portions having larger and smaller phase difference values, respectively, than an intermediate value between maximum and minimum phase difference values in a binarized phase image obtained by an atomic force microscope with a tapping mode method.
摘要:
To provide a toner, which contains a first binder resin, and a second binder resin, wherein the first binder resin is a block polymer containing at least a polyester skeleton A having, in a repeating structure thereof, a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid, and a skeleton B that does not have, in a repeating structure thereof, a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid, and the first binder resin has glass transition temperature Tg1 and Tg 2 as measured by differential scanning calorimetry at a heating rate of 5° C./min, wherein the Tg1 is −20° C. to 20° C., and the Tg2 is 35° C. to 65° C., and wherein the second binder resin is a crystalline resin.
摘要:
A resin for use in toner is provided. The resin comprises an oligomer segment and a soft segment. The oligomer segment comprises a polyhydroxycarboxylic skeleton and an aromatic diol skeleton.
摘要:
A toner including a resin particle (C) is provided. The resin particle (C) includes a resin particle (B) and a resin particle (A). The resin particle (B) includes a resin (b). The resin particle (A) or covering layer (P) includes a resin (a). The resin particle (A) or covering layer (P) is adhered to a surface of the resin particle (B). The resin (a) is a polyester resin. The resin (a) has a total acid value of 15 to 36 mgKOH/g. The resin particle (A) or covering layer (P) has a surface acid value of 10 to 27 mgKOH/g.
摘要:
Toner contains a binder resin containing one or more kinds of crystalline resin and one or more kinds of non-crystalline resin. The non-crystalline resin located at the surface portion of the toner forms a shell structure of a continuous phase of the non-crystalline resin and the toner has an amount of melting heat of 30 J/g or more in a second temperature rising as measured by differential scanning calorimetry (DSC).
摘要:
A carrier for electrophotographic developer, including a core material; and a layer comprising a binder resin, located overlying the core material, wherein the binder resin includes a segment including one or more polymerizable vinyl monomers as a structural unit; and another segment including a partial cleavage structure of polyhedral oligomeric silsesquioxane and/or another partial cleavage structure of polyhedral oligomeric silsesquloxane as a structural unit.
摘要:
A toner including a crystalline polyester and an amorphous polyester is provided. When the binder resin is extracted from the toner with tetrahydrofuran to obtain an extracted solution, and the extracted solution is heated to remove the tetrahydrofuran and obtain a deposit, the deposit contains spherical domains of the crystalline polyester having an average particle diameter of 7.0 μm or less.
摘要:
Ink includes water, a pigment, an organic solvent including glycol ether, and a surfactant including a silicone-based surfactant and a salt of sulfo succinic acid dialkyl ester. As measured by maximum bubble pressure technique at 23 degrees C., the dynamic surface tension of the ink at 15 msec is not greater than 31 mN/m and the difference between the dynamic surface tension of the ink at 15 msec and the dynamic surface tension of the ink at 1,500 msec is not greater than 4.0 mN/m.
摘要:
Provided is a method for applying an ink for applying an oil-based ink to a resin composition layer of a target including a base and the resin composition layer formed over a surface of the base, the method including: a pretreatment step of pre-treating the target before the oil-based ink is applied, with at least one surface treatment for improving a wetting/spreading property of the oil-based ink; a step of applying the oil-based ink to the target that has undergone the pretreatment step; and a post-treatment step of post-treating the target after the oil-based ink is applied, with at least one surface treatment for improving a wetting/spreading property of the oil-based ink.