摘要:
A toner for developing latent electronstatic images comprises a coloring agent, a binder resin component and a negative charge controlling agent in an effective amount which is selected from the group consisting of:(i) an aromatic fluoride having formule (I); ##STR1## (ii) an aromatic fluoride having formula (II); ##STR2## (iii) an aromatic fluoride having formula (III); ##STR3## (iv) an aromatic fluoride having formula (IV); and ##STR4## (v) an aromatic fluoride having formula (V). ##STR5## wherein R.sup.1 to R.sup.8, R.sup.f1 and R.sup.f2, n, X and Y are the same as previously defined in the specification.
摘要:
A negatively chargeable toner for developing latent electrostatic images comprising a coloring agent, a resin component which comprises a homopolymer of a first monomer having formula (I) or a copolymer of the aforementioned first monomer and a second monomer: ##STR1## wherein R.sup.1 represents --H or --CH.sub.3 ; R.sup.2 and R.sup.3 each represent --CN, --COOH or --NO.sub.2 ; R.sup.4 represents --F, --Cl or --Br; and n is an integer of 1 to 10.
摘要:
A dry-type toner for electrophotography comprising a binder resin, a coloring agent, and, as a lubricant, a carnauba wax substantially free of free aliphatic acids. The toner may further comprise a magnetic material, and the resulting toner mixture can be used as a magnetic toner.
摘要:
A dry-type toner is disclosed, which comprises as the main components a resin, a coloring agent and a negative charge controlling agent selected from the group consisting of (1) metallic salts of indolecarboxylic acid having the general formula (I); ##STR1## (2) metallic salts of quinolinecarboxylic acid having the general formula (II); ##STR2## and (3) metallic salts of benzothiazole derivatives having the general formula (III): ##STR3##
摘要:
A toner which includes a toner material, wherein the toner satisfies the following formula: 0° C.≦ΔTm≦20° C. where ΔTm represents Tma (° C.)−Tmb (° C.), Tma (° C.) is ½ flown-out temperature of the toner by a capillary type flow tester, and Tmb (° C.) is ½ flown-out temperature of a melt kneaded mixture of the toner by the capillary type flow tester, and wherein Tma is from 130° C. to 200° C.
摘要:
To provide a toner containing an ethyl acetate-soluble polyester component and an ethyl acetate-insoluble polyester component, wherein the toner is granulated in an aqueous medium, the ethyl acetate-insoluble polyester component is obtained by elongating and/or cross-linking a modified polyester resin during granulating and/or after granulating, the modified polyester resin is produced by condensation polymerization of an acid component and at least one type of diol compound selected from aliphatic diol and alicyclic diol in the presence of a catalyst, and the mass average molecular weight of the modified polyester resin is 10,000 to 100,000.
摘要:
A toner which includes a toner material, wherein the toner satisfies the following formula: 0° C.≦ΔTm≦20° C. where ΔTm represents Tma (° C.)−Tmb (° C.), Tma (° C.) is ½ flown-out temperature of the toner by a capillary type flow tester, and Tmb (° C.) is ½ flown-out temperature of a melt kneaded mixture of the toner by the capillary type flow tester, and wherein Tma is from 130° C. to 200° C.
摘要:
To provide a toner containing an ethyl acetate-soluble polyester component and an ethyl acetate-insoluble polyester component, wherein the toner is granulated in an aqueous medium, the ethyl acetate-insoluble polyester component is obtained by elongating and/or cross-linking a modified polyester resin during granulating and/or after granulating, the modified polyester resin is produced by condensation polymerization of an acid component and at least one type of diol compound selected from aliphatic diol and alicyclic diol in the presence of a catalyst, and the mass average molecular weight of the modified polyester resin is 10,000 to 100,000.
摘要:
A toner has a storage elastic modulus (G′) of 500 Pa or more at a frequency of 1 Hz and temperature of 180° C., while the toner is obtained by dissolving or dispersing a toner composition in an organic solvent, further dispersing the solution or dispersion thereof in an aqueous medium containing fine resin particles as well as being reacted with a compound having an active hydrogen group, and removing the solvent from the obtained aqueous dispersion.
摘要:
A toner for developing an electrostatic image, including a colorant, a binder resin comprising a modified polyester, and fine resin particles having a weight average particle diameter of 50 to 300 nm and being present on an outer surface of the toner, wherein the toner has a BET specific surface area of 1.5 to 4.0 m2/g.