Abstract:
The purpose of the present invention is to provide an actinic ray curable inkjet ink which, in an inkjet printing method, is capable of having both high pinning characteristics and high ejection characteristics. In order to achieve the above purpose, this actinic ray curable inkjet ink includes an actinic ray curable compound, ketone wax, and ester wax, and reversibly goes through a sol-gel phase transition depending on the temperature.
Abstract:
Provided are an actinic energy radiation curable ink, which can achieve a high fineness and natural glossiness when recording is carried out onto a non-absorptive recording medium such as a film or a laminated paper or a slightly absorptive recording medium such as a coated paper; and an actinic energy radiation curable inkjet recording method. This actinic energy radiation curable ink, which is to be used in inkjet recording, is characterized by: said actinic energy radiation curable ink undergoing reversible sol/gel phase transition depending on temperature; said actinic energy radiation curable ink containing from 1% or more by mass to less than 10% by mass of a gelling agent; and, at temperature Tm (° C.) that is separately defined, the storage elastic modulus (G′) of the actinic energy radiation curable ink being from 0.1 or more Pa to less than 1000 Pa and the storage elastic modulus (G′) being smaller than the loss elastic modulus (G″) thereof.
Abstract:
Disclosed is a printed matter production process comprising ejecting droplets of an actinic ray curable inkjet ink in a heated state through a head to supply the droplets onto a recording medium, thereby forming an image, the actinic ray curable inkjet ink containing a polymerizable compound, a photopolymerization initiator and a gelling agent, having a viscosity of from 60 to 200 mPasecond at 25° C. and at a shear rate of 1000/second and showing a phase transition at a temperature of not lower than 25° C., characterized in that the actinic ray curable inkjet ink contains a bifunctional polymerizable compound with a molecular weight of not lower than 400 and with a viscosity at 25° C. of not more than 100 mPasecond in an amount of not less than 75% by mass of the total amount of the polymerizable compound. The process excels in ink ejection properties, enables high speed printing, and provides a printed matter having an image with high precision image quality, excellent stability and reduced deformation.
Abstract:
Disclosed is an actinic energy radiation curable inkjet ink which can be printed on various types of recording media, has excellent printed image quality and excellent fixability particularly on coated printing paper, and is improved in storage stability and ejection stability. Also disclosed is an inkjet recording method using the actinic energy radiation curable inkjet ink. The actinic energy radiation curable inkjet ink is characterized by containing a compound represented by Formula (1) or a compound represented by Formula (2) in an amount of not less than 0.1% by mass and less than 20% by mass based on a total mass of the ink.
Abstract:
An objective is to provide plate making printing exhibit conductivity and flexibility with respect to a flexible substrate, and to provide a method of forming metal patterns via non-plate making printing, and a metal salt mixture usable for the method. Also disclosed is a method of forming a metal pattern possessing the steps of conducting patterning on a substrate with a metal salt mixture for the metal pattern formation possessing a metal salt and a reducing agent, and having a viscosity of 3-50 mPa·s at 25 ° C., and forming the metal pattern via heating to a temperature of 80-400° C.
Abstract:
An ink-jet recording method comprising the step of adhering a dispersion ink comprised of a colorant dispersed in a solvent onto recording medium having a fine particle and a water-soluble binder, wherein the relation the center-line average surface roughness RaA in &mgr;m at the non-image area of the recording medium and the center-line average surface roughness RaB in &mgr;m at the image area of the recording medium is represented by Expression 1 is described. 0.7≦RaB/RaA≦1.8 Expression 1. According to the above, an ink-jet recording method and a recording matter excellent in the glossiness feel, smoothness feel and texture can be provided.
Abstract:
Disclosed is an aqueous inkjet ink which may contain water, a pigment, an organic or an inorganic acid, an amine, a resin that has a higher pKa than the organic or the inorganic acid, and a cross-linking agent. The aqueous inkjet ink exhibits excellent abrasion resistance even in cases where the drying time is short, while having high bleeding resistance and high storage stability. Also disclosed is a method for forming an inkjet image.
Abstract:
Provided is a print preparation method possessing an ejection step in which liquid drops of actinic energy radiation curable type ink-jet ink each containing a polymerizable compound, a photo-polymerizable initiator and a gelling agent are injected from an ink-jet recording head to supply the actinic energy radiation curable type ink-jet ink onto a recording medium, and an actinic energy radiation exposure step, wherein the print preparation method further comprises step (A) in which the recording medium is exposed to electromagnetic waves having a longer wavelength than a wavelength of an absorption wavelength of the photo-polymerization initiator contained in the actinic energy radiation curable type ink-jet ink from a side of a surface on which the image is formed, before conducting the actinic energy radiation exposure step, the print preparation method by which a print having images exhibiting excellent image wear resistance, gloss evenness and image density evenness is provided.
Abstract:
Disclosed is an aqueous inkjet ink which may contain water, a pigment, an organic or an inorganic acid, an amine, a resin that has a higher pKa than the organic or the inorganic acid, and a cross-linking agent. The aqueous inkjet ink exhibits excellent abrasion resistance even in cases where the drying time is short, while having high bleeding resistance and high storage stability. Also disclosed is a method for forming an inkjet image.
Abstract:
Provided is a print preparation method possessing an ejection step in which liquid drops of actinic energy radiation curable type ink-jet ink each containing a polymerizable compound, a photo-polymerizable initiator and a gelling agent are injected from an ink-jet recording head to supply the actinic energy radiation curable type ink-jet ink onto a recording medium, and an actinic energy radiation exposure step, wherein the print preparation method further comprises step (A) in which the recording medium is exposed to electromagnetic waves having a longer wavelength than a wavelength of an absorption wavelength of the photo-polymerization initiator contained in the actinic energy radiation curable type ink-jet ink from a side of a surface on which the image is formed, before conducting the actinic energy radiation exposure step, the print preparation method by which a print having images exhibiting excellent image wear resistance, gloss evenness and image density evenness is provided.