摘要:
An aqueous ink for ink-jet printing comprising at least a water-soluble dye, a water-soluble organic solvent, a water-soluble preservative and anti-mold agent, and water, wherein(1) the water-soluble dye is a mixture of dye compounds I and II and/or III, the peak ratio of I/II and/or III of the water-soluble dye measured by liquid chromatography is in the range of 0.9 to 3.0; the total concentration of NaCl and Na.sub.2 SO.sub.4 contained in the water-soluble dye is 3.0 wt. % or less; and the concentration of Ca contained therein is 120 ppm or less;(2) the water-soluble organic solvent is a mixture consisting essentially of glycerin and at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and polyethylene glycol, with the content ratio of (the glycerin:the glycol) being in the range of (1:1) to (1:5) in terms of parts by weight, and the concentration of the water-soluble organic solvent in the aqueous ink is in the range of 10 wt. % to 30 wt. %; and(3) the surface tension of said aqueous ink is 50 dynes/cm or more.
摘要:
In superposing a copy web and a photosensitive member one over another and transferring a toner image of the copy web by transfer printing from the photosensitive member carrying a toner image of an original formed by following the steps of charging the photosensitive member, exposing the photosensitive member to an optical image of the original to form an electrostatic latent image thereon and developing the electrostatic latent image, one of the copy web and the photosensitive member is driven and the other is driven by the frictional force and electrostatic attractive force, so that relative movement of the photosensitive member and the copy web can be avoided while they are in contact with one another.
摘要:
A disclosed image removing device includes a roller peeling member onto which a recording material with the image forming substance having thermoplastic properties is superposed; a heating unit configured to heat the image forming substance; a pressurizing unit configured to apply pressure to the roller peeling member and the recording material superposed thereon to cause the image forming substance heated by the heating unit to adhere to the roller peeling member; a separating unit configured to separate the recording material from the roller peeling member after the image forming substance has adhered to the roller peeling member; and a removing unit configured to remove, from the roller peeling member, the image forming substance that has been transferred from the recording material to the roller peeling member. The removing unit is driven in such a manner that the removing unit and the roller peeling member pressurize/contact/slide against each other.
摘要:
An ink composition including a colorant; and a solvent, wherein a zeta potential 2 between the colorant and a material selected from the group consisting of silicon, glass, silicon oxide, titanium oxide, chromium oxide, titanium nitride, silicon nitride, zirconium and polyimide is from 0 to −50 mV at a pH of from 6.5 to 11.5. A corrosion inhibitor is preferably added to the ink composition to adjust the zeta potential 2. An ink cartridge containing the ink which optionally includes a recording head discharging the ink to form an image on a recording material, wherein the zeta potential 2 between the colorant in the ink and a material of the recording head contacting the ink is from 0 to −50 mV at a pH of from 6.5 to 11.5. An inkjet recording apparatus including the ink cartridge and a carriage carrying the ink cartridge.
摘要:
An apparatus and method for recording an image using a transfer-type recording mechanism are such that a layer of an intermediate transfer element is removably formed on a surface of an intermediate transfer medium. The intermediate transfer element includes an ultraviolet stabilizer and a powder mixture. The intermediate transfer layer is capable of being dissolved and swelled by applying an ink liquid on the intermediate transfer medium and enables a viscosity of the ink liquid residing thereon to be increased. An image is produced on the intermediate transfer medium by supplying the ink liquid thereon. The image is then transferred to the recording medium, so that a high quality image is produced without any blurring, mixing or penetration of the ink liquid.
摘要:
An apparatus and method for recording an image using a transfer-type recording mechanism are such that a layer of an intermediate transfer element is removably formed on a surface of an intermediate transfer medium. The intermediate transfer element includes an ultraviolet stabilizer and a powder mixture. The intermediate transfer layer is capable of being dissolved and swelled by applying an ink liquid on the intermediate transfer medium and enables a viscosity of the ink liquid residing thereon to be increased. An image is produced on the intermediate transfer medium by supplying the ink liquid thereon. The image is then transferred to the recording medium, so that a high quality image is produced without any blurring, mixing or penetration of the ink liquid.
摘要:
An image recording method including: applying a pretreatment liquid on a surface of a recording material; and discharging a recording ink according to image signals to form an ink image on the pretreatment liquid on the surface of the recording material before the pretreatment liquid applied to the recording material has dried, wherein the recording ink includes a solvent and a component dispersed or dissolved in the solvent, wherein the pretreatment liquid includes a compound depressing at least one of the dispersibility and solubility of the component in the recording ink in an amount of 100 to 80% by weight based on total weight, and wherein the pretreatment liquid has a viscosity of from 10 to 10,000 mPa·s at 25° C.
摘要:
An apparatus and method for recording an image using a transfer-type recording mechanism are such that a layer of an intermediate transfer element is removably formed on a surface of an intermediate transfer medium. The intermediate transfer element includes an ultraviolet stabilizer and a powder mixture. The intermediate transfer layer is capable of being dissolved and swelled by applying an ink liquid on the intermediate transfer medium and enables a viscosity of the ink liquid residing thereon to be increased. An image is produced on the intermediate transfer medium by supplying the ink liquid thereon. The image is then transferred to the recording medium, so that a high quality image is produced without any blurring, mixing or penetration of the ink liquid.
摘要:
A method of producing a recyclable image recording support material including a paper layer capable of copying or recording images thereon is conducted by the steps of applying to an image-bearable side of an image recording support material including a paper layer an aqueous coating liquid selected from the group consisting of an aqueous surfactant solution, an aqueous water-soluble polymer solution, and a mixture of the aqueous surfactant solution and the aqueous water-soluble polymer solution, in an extremely small amount; removing images, if any, from the image-bearable side of the image recording support material by bringing an image releasing member into contact with the image-bearable side of the image recording support material under application of heat and pressure thereto; and drying the image recording support material. An image recording support material is produced by the above method. A method of recyling an image recording support material, based on the above method, is also conducted. An apparatus for producing a recyclable image recording support material and an apparatus for recycling an image recording support material for use in practice are made.
摘要:
In a device for recycling a recording medium by removing a film-like image forming substance from the medium, a separating member contacts one side of the medium carrying the substance. The separating member is durable because its surface contacting the medium is provided with a measure against deterioration. Anticorrosion means reduces the deterioration rate of the separating member.