摘要:
An ink composition comprising: a coloring agent; and a betaine compound comprising: a group containing an amine form nitrogen atom; and a group containing a phosphonic acid structure or a phosphoric acid structure.
摘要:
An ink composition is provided and includes: a dye; and at least one polymer of an oxidation-resistant polymer having a weight-average molecula weight of 3,000 or more, an association-accelating polymer and an amidic polymer. An image printed with the ink composition has an ozone degradation rate of 1/5 or less of that of an image printed with an ink composition free of the at least one polymer. The ink composition has an extremely high image durability.
摘要:
An object of the present invention is to provide an ink set for inkjet recording and an inkjet recording method, which can ensure high pictorial quality of recording image and also excellent preservability of the image obtained. This object of the present invention can be attained by an ink set comprising plural inks for inkjet, each one of the plural inks having a maximum absorption wavelength of one of from 500 to 580 nm and from 580 to 680 nm in an aqueous medium and a different absorbance, wherein based on an absorbance of a dye (or a combination of dyes) in an ink, which has a maximum dye concentration out of the plural inks, an absorbance of a dye (or a combination of dyes) in all another ink excepting the ink having a maximum dye concentration is from 1/20 to ½.
摘要:
Provided is a color photographic material excellent in discrimination and color reproducibility, which has a support and at least a light-sensitive silver halide, a binder, a coupler and a coupling developing agent provided thereon, and at least three light-sensitive emulsion layers having spectral sensitivities in different wavelength regions, respectively, in which at least two different coupling development agents are contained in different light-sensitive emulsion layers.
摘要:
To provide a membrane capable of efficiently collecting fine particles for a long period of time, disclosed is a polytetrafluoroethylene microporous membrane wherein the mean pore size in the surface of the membrane is larger than the mean pore size in the back thereof and the mean pore size continuously changes from the surface toward the back.
摘要:
To provide a membrane capable of efficiently collecting fine particles for a long period of time, disclosed is a polytetrafluoroethylene microporous membrane wherein the mean pore size in the surface of the membrane is larger than the mean pore size in the back thereof and the mean pore size continuously changes from the surface toward the back.
摘要:
The ink set of the present invention provides a high ejection stability, gives an image having an excellent hue, light-resistance and waterproofness and improves the image preservability under severe conditions in ink jet recording, in which the ink set comprising a plurality of inks different in hues, wherein the plurality of inks includes a yellow ink containing a coloring agent that is a dye having: a λmax of from 390 nm to 470 nm; an I(λmax+70 nm)/I(λmax) ratio of not greater than 0.4, in which I(λmax) is the absorbance at λmax and I(λmax+70 nm) is the absorbance at (λmax+70 nm); and a forced fading rate constant of not greater than 5.0×10−2 [hour−1], an ink cartridge having the ink set received therein, an ink jet printer comprising the ink cartridge mounted therein and an image recording method.
摘要:
An ink for inkjet comprising: a dye; and water and/or a water-miscible organic solvent, wherein the dye comprises a dye compound having at least one heterocyclic structure, and the ink further comprises, as an additive, at least one compound capable of chemically interacting with the dye compound.
摘要:
An object of the present invention is to provide an ink set for inkjet recording and an inkjet recording method, which can ensure high pictorial quality of recording image and also excellent preservability of the image obtained.This object of the present invention can be attained by an ink set including plural inks for inkjet, each one of the plural inks having a maximum absorption wavelength of one of from 500 to 580 nm and from 580 to 680 nm in an aqueous medium and a different absorbance, wherein based on an absorbance of a dye (or a combination of dyes) in an ink, which has a maximum dye concentration out of the plural inks, an absorbance of a dye (or a combination of dyes) in all another ink excepting the ink having a maximum dye concentration is from 1/20 to ½.
摘要:
An object of the present invention is to provide an inkjet recording ink ensuring (1) excellent weather resistance (image preservability), (2) less blurring of image drawn and (3) high ejection stability. This object of the present invention can be attained by an inkjet recording ink, including an aqueous medium having dissolved therein at least two water soluble coloring materials sharing one spectral absorption region selected from a region of 500 to 580 nm and a region of 580 to 600 nm as the main absorption region in the aqueous medium.