摘要:
The invention relates to toner particles having excellent charging characteristics and transferring properties, a method for producing the same and toner including the same. More particularly, the invention relates to toner particles, a method for producing the same and toner including the same, in which a CCA highly compatible with a binder resin is readily dispersed in the binder resin, thereby improving charge-maintaining property and charge distribution, and the resultant mixture is sphered to realize excellent long term credibility and transfer property. The toner particles include a styrene/acrylate-based CCA; a styrene/acrylate-based binder resin; and a polyester-based binder resin.
摘要:
There is provided a toner having narrow charge distribution, high chargeability and low image contamination, as well as excellent physical properties such as long-term stability, transfer property and image uniformity, by improving shapes of toner core particles and adding a suitable external additive to surfaces of the toner core particles. The toner includes spheroidized toner core particles; and an external additive coated onto surfaces of the toner core particles, wherein the external additive comprises organic powder, silica and spherical titanium dioxide powder. The toner may be useful to obtain a highly uniform and high-quality image even when the toner of the present invention is used for an extended time since the toner has high chargeability, excellent image uniformity in which charge uniformity and narrow charge distribution are maintained for a long time, low image contamination, as well as excellent physical properties such as transfer property and long-term stability.
摘要:
The invention relates to toner particles having excellent charging characteristics and transferring properties, a method for producing the same and toner including the same. More particularly, the invention relates to toner particles, a method for producing the same and toner including the same, in which a CCA highly compatible with a binder resin is readily dispersed in the binder resin, thereby improving charge-maintaining property and charge distribution, and the resultant mixture is sphered to realize excellent long term credibility and transfer property. The toner particles include a styrene/acrylate-based CCA; a styrene/acrylate-based binder resin; and a polyester-based binder resin.
摘要:
The present invention relates to a color toner for a nonmagnetic mono-component printing system that improves the printing characteristics, and a preparation method thereof. More specifically, the present invention provides a color toner including a first coating layer and a second coating layer formed on a toner mother particle, wherein the first coating layer contains coated organic powders where two kinds of organic powders are coated with each other, and the second coating layer contains coated inorganic powders where silica and titanium dioxide are coated with each other. The color toner of the present invention has a narrow charge distribution, good image density, high transfer efficiency, excellent long-term stability, and reduced PCR contamination, thereby being good for use in high speed color printers, etc., employing a direct type or a tandem type of transfer system.
摘要:
Provided is a non-magnetic mono-component color toner with improved charge properties by surface modification with a charge control agent. The color toner is prepared by spheroidizing toner core particles including a binder and a colorant in the presence of 0.5 to 3 parts by weight of a charge control agent and coating the resultant spherical toner core particles with a first spherical organic powder with an average particle size of 50 to 120 nm, a second spherical organic powder with an average particle size of 600 to 1,000 nm, silica with an average particle size of 5 to 20 nm, and titanium dioxide with an average particle size of 300 to 1,000 nm. The color toner exhibits excellent surface charge properties (e.g., a narrow charge distribution, high chargeability, and good charge maintenance capability), thereby ensuring low image/background contamination, high transfer efficiency, good image density and long-term stability.
摘要:
The present invention relates to a non-magnetic mono-component toner comprising a toner mother particle, and a coating layer formed on the mother particle where the coating layer comprises fatty acid metal salt having average particle size of 0.05 to 3.0 μm, a first organic particle having average particle size of 0.3 to 2.0 μm, a second organic particle having average particle size of 0.05 to 0.25 μm, and silica having average particle size of 0.006 to 0.04 μm. The color toner has narrow charge distribution, high chargeability, a low environmental dependence, and excellent image quality, transfer efficiency, and long-term stability by significantly reducing the contamination of the charging elements.
摘要:
The present invention relates to a magnetic mono-component toner composition with positive charge comprising i) a magnetic toner particle containing a charge control agent with positive charge; ii) a hydrophobic silica with negative charge; iii) a fluorinated organic fine powder; and iv) a metal oxide fine powder containing 20 to 80 wt % of tin oxide. The toner has an advantageous in the extended life of the drum, reduction of the background contamination, and improvement of long-term reliability, and thus can be used effectively for image forming apparatus.
摘要:
The present invention relates to a non-magnetic mono-component toner comprising a toner mother particle, and a coating layer formed on the mother particle where the coating layer comprises fatty acid metal salt having average particle size of 0.05 to 3.0 μm, a first organic particle having average particle size of 0.3 to 2.0 μm, a second organic particle having average particle size of 0.05 to 0.25 μm, and silica having average particle size of 0.006 to 0.04 μm. The color toner has narrow charge distribution, high chargeability, a low environmental dependence, and excellent image quality, transfer efficiency, and long-term stability by significantly reducing the contamination of the charging elements.
摘要:
The present invention relates to a color toner for a nonmagnetic mono-component printing system that improves the printing characteristics, and a preparation method thereof. More specifically, the present invention provides a color toner including a first coating layer and a second coating layer formed on a toner mother particle, wherein the first coating layer contains coated organic powders where two kinds of organic powders are coated with each other, and the second coating layer contains coated inorganic powders where silica and titanium dioxide are coated with each other. The color toner of the present invention has a narrow charge distribution, good image density, high transfer efficiency, excellent long-term stability, and reduced PCR contamination, thereby being good for use in high speed color printers, etc., employing a direct type or a tandem type of transfer system.
摘要:
The present invention relates to a non-magnetic monocomponent color toner and a preparing method thereof. In the non-magnetic monocomponent color toner including a toner mother particle, silica and titanium dioxide, the toner mother particle comprises a specific shaped particle size distribution of the charge control agents, and thus, providing non-magnetic monocomponent color toner with a narrow charge distribution and good chargeability. Accordingly, the color toner does not cause contamination in the non-imaging region. Also, because it has superior image density and printing efficiency and significantly improved charge maintenance, it has good long-term stability.