758results about How to "Excellent developability" patented technology

A toner is provided that contains a particulate toner material (mother toner) having an average circularity of from 0.93 to 0.99, and including a modified polyester resin and a colorant; and an external additive in an amount of from 0.3 to 5.0 parts by weight per 100 parts by weight of the mother toner, wherein the toner has a melting viscosity of from 70 to 140 Pa·s at 160° C., a weight-average particle diameter of from 3 to 7 μm, a ratio thereof to a number-average particle diameter of from 1.91 to 1.25, wherein particles satisfy at least one of (I) and (II): (I) particles having a diameter of 4 μm or less in an amount less than 10% by number; or (II) particles having a diameter of 8 μm or more in an amount less than 2% by volume, along with a one or two component developer containing the toner, a cartridge containing the toner, an image forming method using the toner and an image forming apparatus using the toner.

An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy can improve the ink ejection stability and shows a high storage stability and a high color developability. An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy is characterized in that the ink comprises a pigment represented by the general formula (1), a dispersant, a water-soluble organic compound and an aggregation inhibiting substance for inhibiting aggregation after dispersion breakdown of the pigment, and the content (mass %) of the aggregation inhibiting substance with respect to the total mass of ink is 0.4 times or more to less than 1.3 times of the content (mass %) of the pigment with respect to the total mass of ink.

A lithographic printing plate precursor comprising: a support; an image recording layer comprising (A) an actinic ray absorber, (B) a polymerization initiator, and (C) a polymerizable compound, wherein the image recording layer is capable of being removed with at least one of a printing ink and a fountain solution; and an overcoat layer comprising an inorganic laminar compound. And a lithographic printing method comprising: mounting a lithographic printing plate precursor on a printing press; imagewise exposing the lithographic printing plate precursor with laser beams; and feeding at least one of a printing ink and a fountain solution to the lithographic printing plate precursor to remove a laser beams non-exposed area in an image recording layer; and performing printing.

A toner which is negatively charged to develop an electrostatic latent image is provided that contains a colorant; and a binder resin, wherein the toner has an acid value of from 5 to 20 mg KOH/g and an amine value of from 0.5 to 10 mg KOH/g.

Provided are ink jet ink excellent in dispersion stability and ejection stability and capable of forming images with fastness, abrasion resistance, color developability, and high density with little feathering; a microencapsulated pigment (MCP) providing the ink and a process of making the same; and an aqueous dispersion of the MCP. The MCP comprises pigment particles having a hydrophilic group on their surface (hydrophilized pigment particles) and coated with a polymer by emulsion polymerization. The process comprises emulsion polymerization in the presence of the hydrophilized pigment particles. The ink essentially contains the MCP and water.

The invention belongs to the field of medical implant materials and particularly relates to a novel biodegradable zinc-based metal material and a ureteral expandable stent obtained through the material. The zinc-based metal material is composed of zinc and/or zinc alloy. The zinc alloy is composed of Zn and one or more elements of Mg, Al, Ti, Cu, Ag, Si, Ca, Sr, Y, Zr, Sc, Gd, Nd, Dy, Er, Li, Mn, La, Ce, Pr, Sm, Tb, Ho, Tm, Yb and Lu. The biodegradable zinc-based metal material has good biocompatibility, degradability and mechanical properties, and has wide market application prospects.

The invention relates to a photosensitive composite which contains a specific ketoxime ester compound used as a polymerization initiator, an alkali-soluble resin, DPHA (Dipentaerythritol Hexaacrylate) and a colorant. The composite has good storage stability and also has high exposure sensitivity, good developing performance, no wrinkle on formed pattern surfaces and excellent solidifying effect when used for making black matrixes (BM) and RGB (Red Green Blue) of a color filter. The invention also relates to the application of the photosensitive composite in the production of the color filter, and the filter made from the photosensitive composite has high optical transparency and no light leakage.

An ink composition for ink jet recording, contains at least a dispersoid in which a pigment can be dispersed in water, and a polymer microparticle, in which an average particle diameter of the dispersoid is 20 to 300 nm, the polymer microparticle contains at least 70% by weight or more of an alkyl(meth)acrylate containing ethyl acrylate and/or a cyclic alkyl(meth)acrylate, a(meth)acrylic acid, and an ethylene based unsaturated monomer having a saturated or an unsaturated ring as a monomer component, a glass transition temperature and an acid value thereof are 0° C. or below and 50 mgKOH/g or less, respectively.

It is an object of the present invention to provide a curable resin composition for a column spacer which has excellent developability and solubility and is capable of forming a clearly patterned column spacer without leaving a development residue at the time of pattern formation of the column spacer to be used in producing a liquid crystal display panel.

The present invention is directed to a curable resin composition for a column spacer, which contains a compound having two or more polymerizable unsaturated bonds in a molecule, an alkali-soluble polymer compound, and a photo-reaction initiator, the compound having two or more polymerizable unsaturated bonds in a molecule being an oxide-modified compound having two or more polymerizable unsaturated bonds in a molecule.

Negative thermosensitive lithographic printing plates developable with a non-alkaline aqueous developer and method of developing such plates. The plate comprises on a substrate a thermosensitive layer comprising an ethylenically unsaturated monomer, a free radical initiator, and an infrared absorbing dye. The plate can be imagewise exposed with an infrared laser to cause hardening in the exposed areas and then developed with a non-alkaline aqueous developer to remove the non-exposed areas. The non-alkaline aqueous developer can be water or an aqueous solution comprising at least 60% of water and having a pH of 2.0 to 10.0.

A radiation sensitive resin composition which comprises (A) a polymer which becomes alkali-soluble in the presence of an acid and (B) a radiation sensitive acid generator which generates an acid upon irradiation with a radiation, said polymer (A) comprising two recurring units represented by the general formulas (1) and (2) and a recurring unit which acts to reduce the solubility of the polymer is an alkali developer after the irradiation:wherein R1 represents a hydrogen atom or a methyl group and R2 represents a hydrogen atom or a methyl group. Said composition provides a chemically amplified positive resist which can give a fine pattern with a good pattern shape, and said resist is freed from volume shrinkage, peeling failure and adhesive failure, is excellent in dry etching resistance and effectively reacts with various radiations to give a good pattern shape which is excellent in photolithographic process stability, said pattern shape having no thinned portion at the upper part.

The present invention relates to a toner which has good property such as fixability, coloring power, developability, durability, and environmental stability and so on. More specifically, the present invention relates to a color toner containing at least a binder resin, a colorant, and a wax, in which: a wax concentration of an extract obtained by dispersing the toner into n-hexane at a concentration of 15 mg/cm³ at 23° C. and by subjecting the resultant dispersion to extraction treatment at 23° C. for 1 minute is in the range of 0.080 to 0.500 mg/cm³; an average circularity of particles each having a circle-equivalent diameter of 3 μm or more in the toner is in the range of 0.925 to 0.965; and a content of the wax is in the range of 1 to 15 parts by mass with respect to 100 parts by mass of the binder resin.

A lithographic printing plate precursor comprising: a support; and at least one layer comprising an image-recording layer, the image-recording layer comprising (A) an infrared absorber, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer, wherein the image recording layer is capable of being removed with at least one of a printing ink and a fountain solution, wherein at least one of said at least one layer comprises a copolymer having (a1) a unit comprising at least one ethylenically unsaturated bond, and (a2) a unit comprising at least one functional group interacting with a surface of the support. And a lithographic printing method in which the lithographic printing plate precursor is used. The copolymer preferably has a hydrophilic segment. The copolymer preferably is contained in an undercoat layer formed between the support and the image-recording layer.

An ink jet ink includes at least a coloring material. The coloring material is composed of at least one selected from the group consisting of C.I. Direct Violet 107, C.I. Acid Red 14, C.I. Acid Red 52, C.I. Acid Red 87 and C.I. Reactive Red 180, and a compound represented by the following general formula or a salt thereof.

General Formula (I)

The present invention relates to a colorant as a precursor of inks for ink-jet printing or for display of a color filter, a dispersion containing the colorant, and an ink, more specifically relates to colored resin particles which are excellent in color developability of printed matters, transparency and gloss, and can produce images having an excellent image fastness such as light resistance, water resistance and fixing property, and further which can exhibit an excellent storage stability by itself upon preparing an ink, and is free from clogging of a print head and is excellent in ejection stability upon printing; a water-based dispersion containing the colored resin particles, and an ink for ink-jet printing or an ink for color filter. There are provided colored resin particles which comprise a composite resin, a water-insoluble colorant and water-insoluble inorganic fine particles, wherein the composite resin is a complex of at least one hydrophilic resin and at least one hydrophobic resin which are respectively selected from the group consisting of styrene acrylic resins, silicone resins, polyester resins and urethane resins; a water-based dispersion containing the colored resin particles; an ink for ink-jet printing; and an ink for color filter.

An image forming apparatus has a photoconductive member, and a developing roller develops a latent image on the photoconductive member by a first alternating-current bias in the form of a rectangular wave. The following relationships are satisfied in calculating the duty ratio (D1) of the first alternating-current bias using an application period of voltage in a direction to transfer the toner from the developing roller towards the photoconductive member as a positive period:

• • a CV value in the number particle size distribution of the toner is ≦25%,
  • 4 μm≦Dt≦7 μm,
  • 10⁵ Ω·cm≦pv≦10⁹ QΩcm,
  • 0.4 μm≦Ra≦1.5 μm, and
  • 35%≦D1≦75%.
  • where Dt denotes the volume average particle diameter of the toner, pv denotes the intrinsic resistance value of a developing roller surface, Ra denotes the arithmetic average roughness of the developing roller surface.

A toner including toner particles including a binder resin, a colorant, and an inorganic particulate material present on a surface of the toner particles. The toner particles have a surface roughness (Ra) of from 1 to 30 nm, a standard deviation of the surface roughness of from 10 to 90 nm and include 1 to 20 convexities per 1 μm, which have a height not less than 10 nm.

A lithographic printing plate precursor comprises: a support; and an image recording layer that contains image forming particles and a non-water-soluble binder, the non-water-soluble binder interacting with the surface of the image forming particles. A lithographic printing plate precursor comprises: a support; and an image recording layer that contains a polymer binder and particles, wherein the particles are microcapsules having a polymerizable functional group as a wall material.