90results about How to "Excellent ejection" patented technology

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a poor medium for a polymer that is not adsorbed on the pigment of the polymer having hydroxyl groups, and wherein when the segment constituting the polymer that is not adsorbed on the pigment of the polymer having hydroxyl groups is comprised of a segment A having hydroxyl groups and a segment B having no hydroxyl group, at least one of the poor medium is a good medium for either one of the segment A and the Segment B.

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups / number of carbon atoms in its molecule of 0.50 or less.

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink.

An ink composition, including: a water-soluble solvent A; a pigment; and water. The water-soluble solvent A contains at least a water-soluble solvent having an SP value of 27.5 or less at an amount of 90 mass % or more and a compound represented by the following Formula (1), wherein the compound represented by Formula (1) is the same as or different from the water-soluble solvent having an SP value of 27.5 or less:wherein, in Formula (1), l, m and n each independently represent an integer of 1 or more, the total of l, m and n is from 3 to 15, and AOs each independently represents an ethyleneoxy group or propyleneoxy group.

The present invention provides an aqueous ink containing a dispersion in which a colorant is encapsulated with a polymer to make it dispersible in water, wherein the polymer has aromatic rings in an amount of from 20% by weight to 70% by weight based on the weight of the polymer, and further, the ink contains a compound represented by the following formula: wherein R represents a bivalent organic group, PO represents a propyleneoxy group, EO represents an ethyleneoxy group, x, y, a and b are each the number of repeating units, x represents a number of 1 to 200, y represents a number of 1 to 50, a represents a number of 1 to 30, and b represents a number of 0 to 20.

An ink jet recording method includes ejecting an ultraviolet-ray curable ink of which a viscosity at 28° C. is 8 mPa·s or more from a head to a recording medium, and curing the ultraviolet-ray curable ink attached to the recording medium, wherein, in the ejecting of the ultraviolet-ray curable ink, the ultraviolet-ray curable ink is heated such that a temperature of the ejected ultraviolet-ray curable ink becomes 28° C. to 40° C., and a viscosity of the ultraviolet-ray curable ink at the temperature is 15 mPa·s or less.

An ink jet recording ink (IJ ink) containing a colorant of a pigment and / or dye enveloped in a polymer, and water, and containing at least one compound from the group of acetylene glycol surfactants and acetylene alcohol surfactants, and another compound from the group of glycol ethers and 1,2-alkylene glycols; an IJ ink set including a plurality of the inks; a recording method of using the ink and / or the ink set; recorded matter printed according to the recording method; and an ink jet recording apparatus having an electrostrictive unit mounted thereon and designed so as to be capable of ejecting the ink.

[Object] There is provided an inkjet recording method in which two liquids are printed and which can perform inkjet ejection, in which the inkjet recording method provides a high-quality image using a reaction liquid having excellent storage stability, ejection stability, and recoverability from clogging on a recording medium having an absorbing layer of a paper support with low water absorption, the image having excellent abrasion resistance.[Solving Means] An inkjet recording method includes the step of attaching a reaction liquid and an ink composition to a recording medium to perform printing, in which the recording medium has an absorbing layer of a paper support in which the amount of water absorbed within 30 msec1 / 2 from the start of contact in the Bristow method is 30 ml / m2 or less, the reaction liquid contains a polyether-modified polysiloxane-based compound and at least one selected from a polyvalent metal salt, polyallylamine, and polyallylamine derivatives, and the ink composition contains water, a colorant, and resin emulsion particles.

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 α,β-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 α,β-ethylenically unsaturated hydrophobic monomer (a) and a unit derived from a monomer selected from an α,β-ethylenically unsaturated acid monomer and a salt thereof. The α,β-ethylenically unsaturated hydrophobic monomer (b) includes at least a monomer containing a chain structure saturated alkyl group.

The present invention provides an inkjet pigment dispersion liquid including a carbon black, a dispersant, and water, wherein the total number of coarse particles having a particle diameter of 0.5 μm or greater contained in the inkjet pigment dispersion liquid is 1,000,000 / 5 μL or less, and provides an inkjet ink using the inkjet pigment dispersion liquid.

The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).

The invention provides an addition solidifying type organosilicone composition having proper viscosity (ejecting property), nonliquidity (shape stability when being heated for solidification), and excellent optical reflection, and a photosemiconductor apparatus using the same. The addition solidifying organosilicone composition is particularly applicable to the reflecting material of the LED with self-adhesiveness. The self-adhesiveness addition solidifying type organosilicone composition applicable to photosemiconductor apparatus comprises the following procedures: (A) one molecule comprises at least two organopolysiloxanes of alkenyl bonded with the silicon atom, 100 parts by mass; (B) one molecule comprises at least two hydrogen atoms bonded with silicon atoms and at least one organic polysiloxane of the alkoxy, with the general Si-H-yl number being 1.4-5.0 times of the general alkene-yl number of the component (A); (C) fumed silica, relative to 100 parts by mass of the components (A) and (B), has 8 to 30 parts by mass; (D) white pigment; and (E) solidifying catalyst.

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink.

A radiation-curable ink jet ink composition contains a polymerizable compound, an photopolymerization initiator and polysiloxane, in which the ink composition is used for recording on a package substrate as a recording medium; the polymerizable compound contains one or more kinds of compound having a pentaerythritol skeleton; an HLB value of the polysiloxane is 5 to 12; and the polysiloxane content is 0.1 to 2% by mass with respect to the total amount of the ink composition.

An ink jet printing apparatus and a print head recovery method are provided which effectively execute a preliminary ejection to eject ink not contributing to image printing from nozzle opening of the print head to maintain the ink ejection performance in good condition. The ink in the print head is heated to a first temperature, at which a first preliminary ejection is executed. Then, when the ink temperature falls to a second temperature, which is lower than the first temperature, a second preliminary ejection is executed.

Provided are an ink jet recording ink (IJ ink), an ink jet recording ink set (IJ ink set) and a recording method, having excellent dispersion stability and ejection stability and being capable of providing images which is free from bleeding and which is excellent in color development property and rubbing resistance. An IJ ink and I an IJ ink set having long-term storage stability are provided. Also provided are recorded matter having excellent color development property and rubbing resistance, and an ink jet recording apparatus capable of providing the same. The invention includes: an IJ ink containing a colorant of a pigment and / or dye enveloped in a polymer, and water, and containing at least one compound selected from the group consisting: of acetylene glycol surfactants, acetylene alcohol surfactants, glycol ethers and 1,2-alkylene glycols; an IJ ink set comprising a plurality of the inks; a recording method of using the ink and / or the ink set; recorded matter printed according to the recording method; and an ink jet recording apparatus having an electrostrictive unit mounted thereon and is designed so as to be capable of ejecting the ink.

The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).

The invention relates to an automatic robot spraying device which comprises a robot body. A spraying mechanism is arranged on one side of the robot body and comprises a base fixedly connected with therobot body, a mixing mechanism is arranged in the base, an air pipe opening and a paint spraying inlet are formed in the surface of the base, a mounting base is arranged on one side of the base, andthe mounting base and the base are connected through bolts. Compared with the prior art that in the using process of a spray head, air flow and paint in the spray head are possibly not mixed uniformlyenough, so that the spraying effect is poor, the atomization effect of the paint is poor, and consequently a workpiece is poor, the device has the beneficial effect that the air flow is used as powerto drive mixing blades to rotate, the gas and the paint are driven to be completely mixed, the atomization effect is good when the paint is sprayed out, and the workpiece spraying effect is good.

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups / number of carbon atoms in its molecule of 0.50 or less.

The present invention relates to an azo compound represented by the following formula (1):(wherein, in the formula (1), R1 represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C1-C4)alkyl group which may be substituted by a hydroxyl group or a (C1-C4)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).

The present invention relates to an azo compound represented by the following formula (1): (wherein, in the formula (1), R1 represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C1-C4)alkyl group which may be substituted by a hydroxyl group or a (C1-C4)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).

An aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a poor medium for a polymer that is not adsorbed on the pigment (out of the polymer having hydroxyl groups), and wherein when the segment constituting the polymer that is not adsorbed on the pigment (out of the polymer having hydroxyl groups) is comprised of a segment A having hydroxyl groups and a segment B having no hydroxyl group, at least one of the poor medium is a good medium for either one of the segment A and the Segment B.

Provided is an inkjet recording ink composition which has excellent water resistance and solvent resistance and also has excellent ejection stability. Disclosed is an inkjet recording ink composition which contains a resin having an acid value of less than 10 mg KOH / g, an amino alcohol having a boiling point of 100° C. or more and 300° C. or less, a pigment, and a solvent, in which the resin is in an emulsion state.

An object of the present invention is to provide: a pigment dispersion liquid for inkjet ink, which is stable for a long period of storage and which increases repellency to ink ejection surface. Disclosed is a pigment dispersion liquid for inkjet ink, comprising: a pigment; a pigment dispersing agent; and a compound having an ethylenically unsaturated double bond, wherein the pigment dispersing agent has an amine value of 20 mgKOH / g or less and an acid value of 10 mgKOH / g or less, contains one or more components selected from the group consisting of: a copolymer having a styrene-derived repeating unit, a repeating unit derived from an unsaturated fatty acid having 12 or more carbon atoms, and a repeating unit derived from a polyalkylene oxide having an ethylenically unsaturated double bond; a specific salt of the copolymer and an amine derivative of the copolymer.

The invention discloses an outer drum cover of a washing machine, the washing machine and a control method. The outer drum cover of the washing machine is provided with an annular cavity, a water inlet is formed in the periphery of the annular cavity and located in an outer drum, and after lifted along the inner wall of the outer drum of the washing machine, water flow enters the annular cavity through the water inlet and is sprayed into an inner drum. According to the outer drum cover, it can be achieved that the water flow is lifted along the inner wall of the outer drum of the washing machine and sprayed into the inner drum without additionally arranging a water pump and increasing the power of a motor; moreover, the water flow entering the annular cavity can be prevented from being affected by the rotation of the inner drum and a balance ring, so that the water flow is smoother, the dispersion of the water flow is good, spraying is conducted more evenly, and the spraying effect is better.

Disclosed are an ink jet recording water-based ink having excellent long-term storage stability and ejection stability at a pigment concentration greater than or equal to a certain level and a simple and efficient method for producing such a water-based ink. The present invention provides an ink jet recording water-based ink in which the total content of polyvalent metals as impurities in the water-based ink is not more than 1.2 ppm in terms of 1 mass % of a pigment concentration. Furthermore, the present invention provides a method for producing an ink jet recording water-based ink; the method enables efficient production of the above-mentioned ink jet recording water-based ink through a contact treatment with a particulate chelating resin in which each resin particle contains both an alkali metal-bonded chelating group and a hydrogen-bonded chelating group.

An active ray curable ink-jet ink comprising at least an organic pigment, a polymer dispersant, a photo-initiator and a cationic polymerizable compound, wherein the active ray curable ink-jet ink incorporates a quaternary ammonium salt and a content of the quaternary ammonium salt is not less than 5 ppm and not more than 500 ppm.

An aqueous pigment dispersion liquid for inkjet, which contains a pigment and a pigment dispersant. The pigment dispersant is composed of a graft copolymer and / or a block copolymer, each of which contains a polymer chain (A) and a polymer chain (B). The polymer chain (A) contains 20-60% by mass of a constituent unit that is derived from a first cycloalkyl group-containing (meth)acrylate, 10-35% by mass of a constituent unit that is derived from a (meth)acrylic acid and 5-70% by mass of a constituent unit that is derived from another (meth)acrylate. The polymer chain (B) contains a constituent unit that is derived from a second cycloalkyl group-containing (meth)acrylate and / or a constituent unit that is derived from a (meth)acrylate or a vinyl monomer having an aromatic ring.