Abstract: Provided is an ink jet clear ink containing a polymer fine particle. The polymer fine particle has a core-shell structure obtained by polymerizing an ?,?-ethylenically unsaturated hydrophobic monomer (b) as a core polymer in the presence of a shell polymer that is a copolymer having at least a unit derived from an ?,?-ethylenically unsaturated hydrophobic monomer (a) and a unit derived from a monomer selected from an ?,?-ethylenically unsaturated acid monomer and a salt thereof. The ?,?-ethylenically unsaturated hydrophobic monomer (b) includes at least a monomer containing a chain structure saturated alkyl group.

Abstract: A pigment ink for ink jet recording containing a pigment, water, a graft copolymer and a water-soluble organic solvent, in which a hydrophobic segment constituting the graft copolymer is obtained by copolymerizing a monomer represented by the following formula (1), having an aromatic ring or the like and a monomer having an anionic functional group, and a hydrophilic segment constituting the graft copolymer is obtained by polymerizing a monomer having an anionic functional group: wherein Ar represents an aromatic ring selected from a benzene ring, a condensed benzene ring and a heteroaromatic ring, or a derivative thereof.

Abstract: The present invention relates to a substrate for cell culture capable of controlling at least one function selected from adhesion, proliferation, differentiation, survival, maintenance of undifferentiated state, and apoptosis of a cell. The substrate comprises an immobilization area of controlling substances involved in at least one of the functions of adhesion, proliferation, differentiation, survival, maintenance of undifferentiated state and apoptosis of cells, for example: and the areas are formed by supplying a liquid containing the controlling substances to the substrate by small microdroplet ejection means and immobilizing the controlling substance on the substrate.

Abstract: In an ink-jet recording pigment ink containing a pigment, water, a water-soluble solvent and a polymer, the polymer is obtained by polymerizing an alkyl-?-(hydroxyalkyl) acrylate monomer represented by the following general formula (1): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R2 represents any one selected from a straight-chain or branched alkyl group having 1 to 18 carbon atoms, a cycloalkyl group having 4 to 6 carbon atoms and a phenyl group.

Abstract: To provide an ink jet ink capable of achieving both high colorability and excellent bleeding resistance of an image and having excellent storage stability, provided is an ink jet ink including at least a pigment and a star polymer having a structure represented by at least one formula selected from the group consisting of the following general formulae (1) to (3).

Abstract: Provided is an ink jet ink capable of achieving at a high level both ejection stability and storage stability. Provided is an ink jet ink, including at least a pigment, and a star polymer in which four or more (co)polymer chains of an ?,?-ethylenically unsaturated monomer are bonded to a central skeleton. The (co)polymer chains have two or more first (co)polymer chains each containing at least an aromatic monomer unit and two or more second (co)polymer chains each containing at least one monomer unit selected from the group consisting of acid monomers and salts of the acid monomers.

Abstract: Provided is an ink jet ink capable of achieving both high colorability and excellent bleeding resistance of an image. The ink jet ink includes at least a pigment and a star polymer in which at least three copolymer chains of ?,?-ethylenically unsaturated monomers are bonded to a central skeleton, in which the copolymer chains of the ?,?-ethylenically unsaturated monomers are copolymers of at least one first monomer selected from the group consisting of aromatic (meth)acrylates and aromatic (meth)acrylamides and at least one second monomer selected from the group consisting of acid monomers and salts of the acid monomers.

Abstract: An inkjet pigment ink containing a pigment, a water-soluble solvent, water, and a copolymer. The copolymer is obtained by copolymerization of: aromatic acrylate (monomer A); (meth)acrylate added with ethylene oxide having a polymerization degree of 5 or more (monomer B); and acrylic acid (monomer C).

Abstract: An ink jet recording apparatus is provided with a plurality of inks and includes a unit configured to perform a recovery operation by suction of inks from a plurality of ink ejection portions using a suction cap, wherein the plurality of inks include an ink set including a combination of at least a first ink and a second ink, the first ink containing (i) a self-dispersion pigment having at least one hydrophilic group directly or through another atomic group bonded to the surface of the pigment, and (ii) ammonium ions, the second ink containing a pigment, a polymer having an acid value of 160 mg KOH/g or less, and alkali metal ions, and the suction cap used in the recovery operation is individually provided for each of the first ink and the second ink.

Abstract: An ink set includes a combination of a first ink and a second ink, the first ink containing a self-dispersion pigment having at least one hydrophilic group directly or through another atomic group bonded to the surface of the pigment particle, and ammonium ions, the second ink containing a pigment, a polymer having an acid value of 160 mg KOH/g or less, and alkali metal ions, wherein the first ink further contains a compound (A) selected from nonionic surfactants and/or a compound (B) selected from the group consisting of polyethylene glycol with an average molecular weight of 600 to 2,000, a,w-alkanediol having six carbon atoms, and an imidazolidinone derivative.

Abstract: An ink jet pigment ink containing water, a pigment, a water-soluble organic solvent and a graft copolymer, wherein the graft copolymer has a hydrophilic segment and a hydrophobic segment, the hydrophobic segment is being obtained by copolymerizing an anionic monomer and an aromatic monomer represented by the following formula (1), and the hydrophilic segment is being obtained by polymerizing an anionic monomer wherein Ar is an aromatic ring selected from a benzene ring, a condensed benzene ring and a hetero-aromatic ring, or a derivative thereof, R is H or CH3, and X is O or NH.

Abstract: An ink-jet recording pigment ink comprises water, a pigment, a water-soluble organic solvent and a copolymer; the copolymer being obtained by copolymerizing a silicone type macromer having a vinyl group, represented by the following Formula (1), a vinyl monomer having a hydrocarbon group having 1 to 8 carbon atoms, represented by the following Formula (2), and a monomer having an anionic functional group.

Abstract: A pigment ink for ink jet recording containing a pigment, water, a graft copolymer and a water-soluble organic solvent, in which a hydrophobic segment constituting the graft copolymer is obtained by copolymerizing a monomer represented by the following formula (1), having an aromatic ring or the like and a monomer having an anionic functional group, and a hydrophilic segment constituting the graft copolymer is obtained by polymerizing a monomer having an anionic functional group: wherein Ar represents an aromatic ring selected from a benzene ring, a condensed benzene ring and a heteroaromatic ring, or a derivative thereof.

Abstract: Disclosed herein is a pigment-dispersed ink-jet ink comprising a pigment and a resinous dispersing agent, wherein the resinous dispersing agent is a vinyl copolymer having an acid value of 50 mg KOH/g or higher and a solubility of at most 3% by mass in an alkaline solution containing KOH in an amount 1.5 times as much as the acid value, and the viscosity characteristic of the ink as measured by means of a viscoelastometer satisfies the following relationship: 1.1?(Viscosity of an ink as measured under conditions of 20° C. and a shear rate of 0.5 sec?1)/(Viscosity of an ink as measured under conditions of 20° C. and a shear rate of 100 sec?1)?2.0.

Abstract: An inkjet pigment ink containing a pigment, a water-soluble solvent, water, and a copolymer. The copolymer is obtained by copolymerization of: aromatic acrylate (monomer A); (meth)acrylate added with ethylene oxide having a polymerization degree of 5 or more (monomer B); and acrylic acid (monomer C).

Abstract: In an ink-jet recording pigment ink containing a pigment, water, a water-soluble solvent and a polymer, the polymer is obtained by polymerizing an alkyl-?-(hydroxyalkyl) acrylate monomer represented by the following general formula (1): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R2 represents any one selected from a straight-chain or branched alkyl group having 1 to 18 carbon atoms, a cycloalkyl group having 4 to 6 carbon atoms and a phenyl group.

Abstract: The present invention provides a rubbing cloth for use in manufacturing liquid crystal display panels which consists of a velvet fabric having a ground sheet texture comprising warps and wefts, and pile yarns woven to the ground sheet texture in the warp direction, wherein synthetic fibers as the warps were woven with combination of different tensions of the synthetic fibers, or the ground sheet texture comprises warps with combination of different feed lengths, so that the pile yarns are stably inclined.

Abstract: Disclosed herein is a pigment-dispersed ink-jet ink comprising a pigment and a resinous dispersing agent, wherein the resinous dispersing agent is a vinyl copolymer having an acid value of 50 mg KOH/g or higher and a solubility of at most 3% by mass in an alkaline solution containing KOH in an amount 1.5 times as much as the acid value, and the viscosity characteristic of the ink as measured by means of a viscoelastometer satisfies the following relationship: 1.1?(Viscosity of an ink as measured under conditions of 20° C. and a shear rate of 0.5 sec?1)/(Viscosity of an ink as measured under conditions of 20° C. and a shear rate of 100 sec?1)?2.0.

Abstract: The present invention provides a rubbing cloth for use in manufacturing liquid crystal display panels which consists of a velvet fabric having a ground sheet texture comprising warps and wefts, and pile yarns woven to the ground sheet texture in the warp direction, wherein synthetic fibers as the warps were woven with combination of different tensions of the synthetic fibers, or the ground sheet texture comprises warps with combination of different feed lengths, so that the pile yarns are stably inclined.

Abstract: A liquid crystal display device which has a liquid crystal composition between a first substrate and a flexible second substrate. The liquid crystal composition is filled between the substrates by being dispensed on the first substrate and spread uniformly while the second substrate is being pressed against the first substrate by a roller, and the liquid crystal composition is sealed by sealing resin provided on the sides of the substrates. The gap between the substrates is maintained by spherical spacers and/or a resin structure.