Ink includes water, a coloring material, and a copolymer including a first structure unit represented by the following Chemical formula 1 and a second structure unit including an anionic group. ##STR00001## In the Chemical formula, R represents a hydrogen atom or a methyl group, X represents an alkylene group having 2-4 carbon atoms, and Y represents a substituted or non-substituted straight-chain alkylene group having 5 to 7 carbon atoms.

Ink includes water, a coloring material, and a copolymer including a first structure unit represented by the following Chemical formula 1 and a second structure unit including an anionic group. ##STR00001## In the Chemical formula, R represents a hydrogen atom or a methyl group, X represents an alkylene group having 2-4 carbon atoms, and Y represents a substituted or non-substituted straight-chain alkylene group having 5 to 7 carbon atoms.

An ink set includes an ink A including water, a first organic solvent, and a first pigment and an ink B including water, a second organic solvent, a second pigment, and a urethane resin particle. The first organic solvent includes at least one of N,N-dimethyl--buthoxy propionamide, N,N-dimethyl--methoxy propionamide, and 3-ethyl-3-hydroxymethyl oxetane and has a mixing solubility parameter A of 10.00 to less than 13.00 and the second organic solvent has a mixing solubility parameter B of 13.00 to 16.00.

An ink set includes an ink A including water, a first organic solvent, and a first pigment and an ink B including water, a second organic solvent, a second pigment, and a urethane resin particle. The first organic solvent includes at least one of N,N-dimethyl--buthoxy propionamide, N,N-dimethyl--methoxy propionamide, and 3-ethyl-3-hydroxymethyl oxetane and has a mixing solubility parameter A of 10.00 to less than 13.00 and the second organic solvent has a mixing solubility parameter B of 13.00 to 16.00.

Inkjet primer compositions are provided, including those comprising water, a co-medium, and resin particles, wherein the resin particles comprise a polymerization product of reactants comprising one or more types of metal chelating monomers. Inkjet sets for inkjet printing systems are also provided including those comprising such an inkjet primer composition; and an aqueous inkjet ink composition for printing on an ink-receiving layer, the ink-receiving layer comprising the resin particles of the inkjet primer composition, the aqueous inkjet ink composition comprising water, a colorant, and additional resin particles.

Inkjet primer compositions are provided, including those comprising water, a co-medium, and resin particles, wherein the resin particles comprise a polymerization product of reactants comprising one or more types of metal chelating monomers. Inkjet sets for inkjet printing systems are also provided including those comprising such an inkjet primer composition; and an aqueous inkjet ink composition for printing on an ink-receiving layer, the ink-receiving layer comprising the resin particles of the inkjet primer composition, the aqueous inkjet ink composition comprising water, a colorant, and additional resin particles.

In one aspect, provided is a method for producing a semiconducting single-walled carbon nanotube dispersion. This method allows semiconducting single-walled carbon nanotubes to be separated from a single-walled carbon nanotube mixture containing semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes in an aqueous medium, and yet requires only an easily available separation agent and a simple operation. One aspect of the present disclosure relates to a method for producing a semiconducting single-walled carbon nanotube dispersion. The method includes (A) preparing a single-walled carbon nanotube dispersion to be separated that contains single-walled carbon nanotubes composed of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes, an aqueous medium and a nonionic polymer containing a constitutional unit A derived from a monomer represented by the following formula (1), and (B) centrifuging the single-walled carbon nanotube dispersion to be separated and then collecting a supernatant containing the semiconducting single-walled carbon nanotubes from the centrifuged single-walled carbon nanotube dispersion. A content of the constitutional unit A in all constitutional units of the polymer is 2 mol % or more. The polymer is water soluble.
CH.sub.2CR.sup.1COO-(EO).sub.p(PO).sub.qR2(1)

A recording method according to an embodiment of the present disclosure is a recording method to perform recording on a recording medium in a manner such that while a relative position between an ink jet head and the recording medium is transferred, a scan to eject an ink from the ink jet head so as to be adhered to the recording medium is performed a plurality of times for the recording. The method described above includes a step of adhering a treatment liquid containing an aggregating agent to the recording medium; a step of ejecting a color ink composition containing a colorant from the ink jet head so as to be adhered to the recording medium; and a step of ejecting a clear ink composition containing a resin from the ink jet head so as to be adhered to the recording medium. In the recording method described above, the color ink composition is adhered to the same scan region by performing the scan at least two times, the clear ink composition is adhered by the same scan as a final scan of the at least two scans to a scan region of the recording medium to which the color ink composition is adhered, and an adhesion amount of the clear ink composition adhered by the final scan in the region to which the color ink composition and the clear ink composition are adhered is 80 percent by mass or more of a total adhesion amount of the clear ink composition in the region.

A recording method according to an embodiment of the present disclosure is a recording method to perform recording on a recording medium in a manner such that while a relative position between an ink jet head and the recording medium is transferred, a scan to eject an ink from the ink jet head so as to be adhered to the recording medium is performed a plurality of times for the recording. The method described above includes a step of adhering a treatment liquid containing an aggregating agent to the recording medium; a step of ejecting a color ink composition containing a colorant from the ink jet head so as to be adhered to the recording medium; and a step of ejecting a clear ink composition containing a resin from the ink jet head so as to be adhered to the recording medium. In the recording method described above, the color ink composition is adhered to the same scan region by performing the scan at least two times, the clear ink composition is adhered by the same scan as a final scan of the at least two scans to a scan region of the recording medium to which the color ink composition is adhered, and an adhesion amount of the clear ink composition adhered by the final scan in the region to which the color ink composition and the clear ink composition are adhered is 80 percent by mass or more of a total adhesion amount of the clear ink composition in the region.

The invention relates to a UV-curing primer composition for the coating of glass, in particular glass hollow bodies, wherein the primer composition, in addition to reactive oligomers and/or reactive monomers and at least one photoinitiator, comprises at least one organosilane, which possesses at least one acetoxy radical, in particular 1 to 4 acetoxy radicals.

The invention further relates to use of at least one organosilane for providing a UV-cured primer layer on glass and/or an ink layer on glass, a method for coating glass, a substrate coated with a UV-cured primer layer, an ink and a kit.