摘要:
A liquid toner for use in a liquid developer contains a dispersion medium and toner particles, each of which toner particles contains a coloring agent and a binder agent and is dispersed in the dispersion medium, the toner particles comprising small toner particles with a particle diameter of 0.1 .mu.m or less in an amount of 20 wt. % or less of the total weight of the toner particles, and having an average particle diameter of 0.3 to 5 .mu.m. Using the above-mentioned liquid toner in which the amount of the toner particles is controlled to 5 to 100 wt. % of the total weight of the liquid toner, a latent electrostatic image formed on a photoconductor can be developed to a toner image.
摘要:
An ink composition contains a carrier medium and charged particles containing a coloring agent, which ink composition satisfies at least one condition of condition A or B: condition A that the specific charge quantity of the charged particles is in a range of 10 to 1,000 .mu.C/g with a positive or negative polarity; and condition B that the specific resistance of the ink composition is 10.sup.10 .OMEGA.cm or more; and ink-jet recording methods using the ink composition are proposed.
摘要:
Provided is a method for coating inks, the method including coating a plurality of kinds of inks on a target by an inkjet method individually, wherein the target includes a base and a gel layer provided on the base and containing a vinyl chloride resin and a plasticizer, wherein the plurality of kinds of inks are oil-based inks and include an ink x and an ink y that is to be discharged after the ink x is discharged, and wherein an interpenetration ratio Pxy of the inky to the ink x is 7.0% or greater but 13.0% or less.
摘要:
To provide an image forming method, including: a pre-treatment liquid application step for applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer! a drying step for drying the recording medium on which the pre-treatment liquid has been applied; and an image forming step for forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.
摘要:
A cleaning liquid used for cleaning an ink flow channel in an inkjet recorder includes water; a hydrosoluble organic solvent; a compound having the following formula (1): wherein n represents an integer of from 1 to 40; and a compound having the following formula (2): wherein R1 and R2 independently represent an alkyl group having 3 to 6 carbon atoms; R3 and R4 independently represent a methyl group or an ethyl group; and n represents an integer of from 1 to 6.
摘要:
The present invention provides a recording ink set containing a black ink, a cyan ink, a magenta ink, and a yellow ink, each of which contains water, a water-insoluble color material, a water-soluble organic solvent, and a surfactant, wherein the black ink and at least one of the inks other than the black ink respectively contain a different water-soluble organic solvent; and the surface tension of the water-soluble organic solvent(s) used only for the inks other than the black ink is higher than that of the water-soluble organic solvent used only for the black ink; and the present invention also provides a recording method using the recording ink set.
摘要:
An ink for inkjet recording containing water, water-soluble organic solvent, water-dispersible resin, fluorochemical surfactant or derivative thereof, and coloring agent containing pigment, where the ink has a surface tension of 20-35 mN/m and viscosity of ≧5 mPa·s at 25° C., total amount of the water-dispersible resin and the coloring agent in the ink is 5-40% by mass, and mass ratio A/B of the water-dispersible resin A to the coloring agent B is 0.5-4, where the ink is applied to a recording medium containing a support containing cellulose pulp, and one or more barrier layers disposed on a face of the support, and where the barrier layer contains ≧30% by mass of inorganic pigment having refractive index of ≧1.5, excluding aluminum hydrate, and ≦10% by mass of inorganic pigment having a refractive index of
摘要翻译:含有水,水溶性有机溶剂,水分散性树脂,含氟化合物表面活性剂或其衍生物的喷墨记录用油墨和含有颜料的着色剂,其中油墨的表面张力为20-35mN / m,粘度> 在25℃下为5mPa·s,油墨中的水分散性树脂和着色剂的总量为5〜40质量%,水分散性树脂A与着色剂的质量比A / B B为0.5-4,其中将油墨施加到含有含有纤维素纸浆的载体的记录介质和设置在载体的表面上的一个或多个阻挡层,并且其中阻挡层含有≥30质量%的无机 折射率> 1.5的颜料,不包括水合铝,和10质量%的折射率<1.5的无机颜料。
摘要:
The present invention provides an inkjet recording inkset including a black ink; and at least one color ink, wherein the black ink and the color ink respectively contains a coloring material, water, a water-soluble organic solvent and a surfactant, and wherein the black ink contains, as the coloring material, a water-dispersible carbon black having a hydrophilic group on its surface, which can be dispersed without using a dispersing agent, and only the color ink contains, as the surfactant, a fluorine surfactant expressed by Chemical Formula 1: Chemical Formula 1 where Rf represents a fluorine-containing alkyl group; R1 represents an anionic group; R2 represents a cationic group; and q represents a positive integer.
摘要:
An ink-jet recording process which conducts recording by imparting ink onto the surface of a recording medium according to recording information, where the recording medium has a base material and a porous ink receiving layer thereon containing inorganic particles having a BET specific surface area of at least 150 m2/g, and the ink contains a polymer emulsion having a water-insoluble or hardly-soluble colorant contained in polymer fine particles and at least one wetting agent, 8-11 C polyol or glycol ether, anionic or nonionic surfactant, water-soluble organic solvent, and water; and has a surface tension of 40 mN/m or less at 25° C. This process can provide high-grade images excellent in ink absorbing and fixing properties and satisfactory in color tone, produce images excellent in image fastness such as water resistance and light resistance, and implement ink-jet recording excellent in storage stability and discharge stability and free from head clogging at printing.
摘要:
An inkjet recording apparatus, includes: a black ink ejecting portion configured to eject a black ink containing a self-dispersion pigment; color ink ejecting portions configured to eject, respectively, a cyan ink, a magenta ink and a yellow ink which contain a polymer emulsion containing a polymer fine particle containing a coloring material which is insoluble in water or slightly soluble in water; and a recording-controlling unit configured to control recording. When the recording medium is optically transparent and is provided, on a transparent base material thereof, with an ink accepting layer, the recording-controlling unit controls recording on the recording medium such that the color ink ejecting portion is used for recording a monochrome image and a color image which has a plurality of colors, leaving the black ink ejecting portion substantially free from being used.