A toner having an adequate storage stability and adequately suppressing an ejected paper adhesion, while achieving improving low-temperature fixability, has a toner particle containing a binder resin and a plasticizer, wherein Tg1 is 53 C. or lower and Tg2 is 55 C. or higher, in DSC measurement using the toner as a sample, when the following steps (i) to (iii) are performed: (i): the temperature of the toner is raised for the first time at a rate of temperature increase of 10 C./min, (ii): after the step (i), the temperature of the toner is lowered at a rate of temperature decrease of 10 C./min, (iii): after the step (ii), the temperature of the toner is raised for the second time at a rate of temperature increase of 10 C./min, Tg1 represents a glass transition temperature measured at the step (i), and Tg2 represents a glass transition temperature measured at the step (iii).

A toner set including a color toner including a binder resin and a colorant, and an invisible toner including a binder resin and a near infrared light-absorbing material, wherein 60-degree glossiness of a solid image of the invisible toner is 30 or greater, and the 60-degree glossiness of the solid image of the invisible toner is higher than 60-degree glossiness of a solid image of the color toner by 10 or greater.

Provided is an image forming method for forming an image including a recording medium and a layer containing a photosoftening compound disposed thereon, the image forming method containing the steps of: supplying a powder for adhering the powder to the image; and irradiating the image with light to melt or to soften the image.

The purpose of the present invention is to provide a charge control agent for polymerized toners and particularly for color toners, which has a large charge amount and environmentally stable charging characteristics. Since a charge control agent including a pyrazolone derivative represented by a general formula (1) or a salt of the derivative as an active ingredient has a large charge amount and excellent environmental stability of charging, it has an excellent charge-imparting effect for use in polymerized toners and particularly in color toners: ##STR00001##
in the formula, R.sub.1, R.sub.2, and R.sub.3 each independently represent a substituted or unsubstituted C1 to C20 linear or branched alkyl group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

Compositions are provided which may comprise a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both. Toner and additive manufacturing compositions comprising the organic additive particles are also provided.

A toner includes a europium complex represented by the following Chemical formula ##STR00001## where A represents 2-naphthyl group, 2-naphthyl group having a substitution group selected from the group consisting of an alkyl group, an alkoxy group, and a halogen, R represents a fluoroalkyl group having one to three carbon atoms or a methyl group, and R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each, independently represent hydrogen atoms, alkyl groups, or aryl groups, wherein the toner has a hydroxyl value of from 20 to 40 mgKOH/g.

A binder resin for toner of the present invention comprising: a polyester resin (A) which contains a constitutional unit derived from isosorbide and has a softening temperature of higher than 120 C.; and a polyester resin (B) different from the polyester resin (A), wherein the binder resin for toner has a pulverizability index of 25 or more.

Disclosed herein are methods of electrostatically printing a cyclodextrin composition on a substrate, the method including forming an electrostatically printable composition comprising a polymer and one or more cyclodextrins, one or more cyclodextrin inclusion complexes, or a combination thereof, and electrostatically printing the composition on a substrate. Also described are electrostatically printable compositions, methods of making the compositions, printing systems employing the compositions, substrates having the composition electrostatically printed thereon, laminates thereof, and uses of the printed substrates and laminates.

Disclosed herein are methods of electrostatically printing a cyclodextrin composition on a substrate, the method including forming an electrostatically printable composition comprising a polymer and one or more cyclodextrins, one or more cyclodextrin inclusion complexes, or a combination thereof, and electrostatically printing the composition on a substrate. Also described are electrostatically printable compositions, methods of making the compositions, printing systems employing the compositions, substrates having the composition electrostatically printed thereon, laminates thereof, and uses of the printed substrates and laminates.

An electrostatic latent image developing toner has positive chargeability and includes a plurality of toner particles. The toner particles each include primary domains made from a primary mixture. The primary mixture contains a wax and an antioxidant. The antioxidant is contained in an amount of at least 1.8 parts by mass and no greater than 15.8 parts by mass relative to 100 parts by mass of the primary mixture.