摘要:
A method for making a lithographic printing plate precursor includes the steps of coating a composition having a pH≦5 on a support having a hydrophilic surface or which is provided with a hydrophilic layer, the composition including hydrophobic thermoplastic polymer particles stabilized with an anionic dispersant, a hydrophilic binder and colloidal silica, characterized in that the silica carries a negative charge; and drying the coated composition.
摘要:
A method for making a lithographic printing plate precursor comprising the steps of: (i) providing a grained and anodized aluminum support; (ii) treating the support with an aqueous solution comprising a salt of zirconium; (iii) treating the support with an aqueous solution comprising a compound comprising a phosphonic acid group and/or an ester or a salt thereof; (iv) applying a coating comprising hydrophobic particles and a binder; (v) drying said coating.
摘要:
A metal chalcogenide composite nano-particle comprising a metal capable of forming p-type semiconducting chalcogenide nano-particles and a metal capable of forming n-type semiconducting chalcogenide nano-particles, wherein at least one of the metal chalcogenides has a band-gap between 1.0 and 2.9 eV and the concentration of the metal capable of forming p-type semiconducting chalcogenide nano-particles is at least 5 atomic percent of the metal and is less than 50 atomic percent of the metal; a dispersion thereof; a layer comprising the nano-particles; and a photovoltaic device comprising the layer.
摘要:
A heat-sensitive lithographic printing plate precursor comprising on a grained and anodized aluminum support a compound which is capable of converting form a hydrophobic state to a hydrophilic state or vice versa upon exposure to heat, and is represented by the following formula: A-(L)n-Bwherein L represents a linking group, n represents 0 or 1 and B represents a thermo-labile group; characterized in that the compound further comprises the group A which is a functional group capable of interacting with the surface of a grained and anodized aluminum support and is selected from the list consisting of a halosilanyl group, an alkoxysilanyl group, a phosphonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a salicylic acid group or a salt thereof, a boronic acid group or an ester or a salt thereof, an optionally substituted di or tri-hydroxyaryl group, an optionally substituted salicaldoxime group, an optionally substituted salicaldimine group, an optionally substituted hydroxyheteroaryl group, an amidine group, a 1,3-dicarbonyl group or a group represented by the formula (i) wherein Q and Z independently represent the necessary atoms to form an optionally substituted five or six membered aromatic or heteroaromatic ring.
摘要:
A method for making a negative-working, heat-sensitive printing plate precursor capable of switching from a hydrophilic state into a hydrophobic state upon exposure to heat and/or infrared light, including the steps of (i) providing a support having a surface comprising titanium, (ii) modifying the surface by producing an oxide of titanium following the steps of (1) anodizing the support and (2) annealing the anodized support under reduced pressure. Additionally, a method for making a negative-working, heat-sensitive printing plate precursor capable of switching from a hydrophilic state into a hydrophobic state upon exposure to heat and/or infrared light, including the steps of (i) providing a support having a surface including titanium, (ii) modifying the surface by producing an oxide of titanium following the steps of (1) etching the support and (2) anodizing the etched support.
摘要:
A positive-working, heat-sensitive material for making a lithographic printing plate by direct-to-plate recording is disclosed. The material comprises a hydrophobized grained and anodized aluminum support and a layer comprising a compound capable of converting light into heat provided onto said support, said support being obtainable by RF plasma treatment of a grained and anodized aluminum support in the presence of a fluorine containing gas.
摘要:
Nanoparticle dispersions of ZnS doped with a luminescent center are prepared by precipitation from aqueous solutions. When such dispersions are coated between conductive electrodes a Thin Film Inorganic Light Emitting Diode device is obtained.
摘要:
A method for the manufacturing of a Thin Film Inorganic Light Emitting Diode is disclosed. The device contains in one single layer or in a double layer a dispersion of zinc sulfide doped with a luminescent centre, and a water-compatible p-type semiconductive polymer, preferably a polythiophene/polymeric polyanion complex.
摘要:
Photosensitive printing element for preparing flexographic printing plates via computer-to-plate technology with a support, a photopolymerizable layer and an IR-ablatable layer substantially opaque to actinic radiation which comprises at least one heat-combustible polymeric binder, at least one IR-absorbing material and at least one aliphatic diester, and a process for making a flexographic printing plate using such an element.
摘要:
An improved heat mode recording element based on a thin metal layer, preferably bismuth, is disclosed, characterized in that it contains hypophosphorous acid, or phosphorous acid, or a mixture of both.