Abstract: It is possible to implement pattern formation and pattern manufacturing that eliminate the necessity of high-cost accurate positioning. A pattern manufacturing apparatus (100) includes a controller (101) and a laser projector (102). The controller (101) controls the laser projector (102) to form a pattern on a pattern forming sheet (130) placed on a stage (140). The laser projector (102) further includes an optical engine (121). The optical engine (121) irradiates the pattern forming sheet (130) with a light beam (122). The stage (140) has a hollow structure not to obstruct the optical path of the light beam (122). The pattern forming sheet (130) includes a light-transmitting sheet material layer and a photo-curing layer applied to the sheet material layer.

Abstract: Solder bumps are provided on round wafers through the use of injection molded solder. Copper pillars or ball limiting metallurgy are formed over I/O pads within the channels of a patterned mask layer. Solder is injected over the pillars or BLM, filling the channels. Molten solder can be injected in cavities formed in round wafers without leakage using a carrier assembly that accommodates wafers that have been previously subjected to mask layer deposition and patterning. One such carrier assembly includes an elastomeric body portion having a round recess, the walls of the recess forming a tight seal with the round wafer. Other carrier assemblies employ adhesives applied around the peripheral edges of the wafers to ensure sealing between the carrier assemblies and wafers.

Abstract: A solar assembly includes an electrical connection and junction box and a solar cell module. The junction box has an electrically conducting structure including an electrical conductor path. The solar cell module has an electrical conductive strip. A flexible electric conductor is connected with the conductor path and is materially bonded with the conductive strip in an electrically conducting manner such that the conductor path electrically contacts the conductive strip via the electric conductor.

Abstract: Techniques are disclosed for realizing a two-dimensional target lithography feature/pattern by decomposing (splitting) it into multiple unidirectional target features that, when aggregated, substantially (e.g., fully) represent the original target feature without leaving an unrepresented remainder (e.g., a whole-number quantity of unidirectional target features). The unidirectional target features may he arbitrarily grouped such that, within a grouping, all unidirectional target features share a common target width value. Where multiple such groupings are provided, individual groupings may or may not have the same common target width value. In some cases, a series of reticles is provided, each reticle having a mask pattern correlating to a grouping of unidirectional target features. Exposure of a photoresist material via the aggregated series of reticles substantially (e.g., fully) produces the original target feature/pattern.

Abstract: A display device includes a thin film transistor substrate, a display layer, a patterned color resist layer, a patterned UV block layer and a transparent protective layer. The thin film transistor substrate has a substrate and a plurality of thin film transistors. The display layer is disposed on the thin film transistor substrate. The patterned color resist layer is disposed on the display layer. The patterned UV block layer is disposed on the patterned color resist layer. The transparent protective layer is disposed on the patterned UV block layer. The present invention also provides a laser transfer printing method for fabricating the color resist layer and the patterned UV block layer.

Abstract: A mask-forming film has a transparent layer between the imageable layer and the carrier sheet, which transparent layer has a refractive index that is lower (by at least 0.04) than that of the carrier sheet or any immediately adjacent layer between it and the carrier sheet. This lower refractive index layer modifies the path of incident radiation during mask image transfer so as to provide steeper shoulder angles in the relief image solid areas. This mask film is used to form a relief image such as in a flexographic printing plate.

Abstract: A laser induced thermal imaging apparatus for imaging an imaging layer of a donor film on an acceptor substrate. The laser induced thermal imaging apparatus includes: a substrate stage having an electromagnet, and adapted to receive an acceptor substrate having a pixel area of the organic light emitting device and a donor film including the organic light emitting layer to be imaged on the pixel area; a laser oscillator for irradiating a laser on the donor film; a contact frame adapted to be located between the substrate stage and the laser oscillator and including an opening portion of a pattern corresponding to a part to be imaged of the donor film and a permanent magnet for forming a magnetic force with the substrate stage; and a contact frame moving mechanism for moving the contact frame toward the substrate stage.

Abstract: A method of making a relief image on a flexographic print plate including imagewise exposing a mask including an imageable material disposed on a mask substrate to form an imaged mask having a mask image in the imageable material disposed on the mask substrate, the mask image including mask image areas each having a highlight value. The method further includes laminating the imaged mask to a front surface of a flexographic printing plate precursor, and exposing selected areas of the flexographic printing plate precursor to an imagewise addressable curing radiation via a back surface of the flexographic printing plate precursor based on the highlight values of corresponding mask image areas of the mask image.

Abstract: A laser induced thermal imaging apparatus for imaging an imaging layer of a donor film on an acceptor substrate. The laser induced thermal imaging apparatus includes: a substrate stage having an electromagnet, and adapted to receive an acceptor substrate having a pixel area of the organic light emitting device and a donor film including the organic light emitting layer to be imaged on the pixel area; a laser oscillator for irradiating a laser on the donor film; a contact frame adapted to be located between the substrate stage and the laser oscillator and including an opening portion of a pattern corresponding to a part to be imaged of the donor film and a permanent magnet for forming a magnetic force with the substrate stage; and a contact frame moving mechanism for moving the contact frame toward the substrate stage.

Abstract: A laser induced thermal imaging apparatus for imaging an imaging layer of a donor film on an acceptor substrate. The laser induced thermal imaging apparatus includes: a substrate stage having an electromagnet, and adapted to receive an acceptor substrate having a pixel area of the organic light emitting device and a donor film including the organic light emitting layer to be imaged on the pixel area; a laser oscillator for irradiating a laser on the donor film; a contact frame adapted to be located between the substrate stage and the laser oscillator and including an opening portion of a pattern corresponding to a part to be imaged of the donor film and a permanent magnet for forming a magnetic force with the substrate stage; and a contact frame moving mechanism for moving the contact frame toward the substrate stage.

Abstract: According to the invention, the resin film to be divided is finely divided along the grooves, whereby the ends of images or characters of photos or the like can be cut off finely. The resin film to be divided is provided with the grooves, thereby finely cutting off the ends of images or characters output on the surface thereof. Further, the resin film is as the lowermost layer, the adhesive layer is provided thereon, and the paper or plastic film with the image receiving layer coat is provided thereon. The grooves formed by cutting the paper or plastic film with image receiving layer coat are previously provided, and the grooves enter a portion of the resin film to be divided, whereby after an image is received, the ends of the film can be finely cut off.

Abstract: A method of making a microstructure includes selectively activating a portion of a surface of a silicon-containing elastomer, contacting the activated portion with a substance, and bonding the activated portion and the substance, such that the activated portion of the surface and the substance in contact with the activated portion are irreversibly attached. The selective activation may be accomplished by positioning a mask on the surface of the silicon-containing elastomer, and irradiating the exposed portion with UV radiation.

Abstract: Semiconductor nanocrystals surface-coordinated with a compound containing a photosensitive functional group, a photosensitive composition comprising semiconductor nanocrystals, and a method for forming semiconductor nanocrystal pattern by producing a film using the photosensitive semiconductor nanocrystals or the photosensitive composition, exposing the film to light and developing the exposed film, are provided. The semiconductor nanocrystal pattern exhibits luminescence characteristics comparable to the semiconductor nanocrystals before patterning and can be usefully applied to organic-inorganic hybrid electroluminescent devices.

Abstract: Pattern transfer is achieved by forming a first patterned hard mask layer with a circuit pattern and a plurality of dummy patterns on a substrate, forming a second pattern mask layer on the substrate, exposing the circuit pattern of the first pattern mask layer, and removing a portion of the substrate exposed by the first patterned mask layer, so as to transfer the circuit pattern to the substrate.

Abstract: The invention is directed to methods of making an article bearing a relief image using a removable film. First, an imageable film that contains at least a mask substrate and an imageable material is imagewise exposed to imaging radiation to form an imaged film. The imaged film is then transferred to an imageable article, such as a flexographic printing plate precursor. The resulting assembly is exposed to curing radiation resulting in exposed and unexposed areas of photosensitive material on the imageable article. Following exposure to curing radiation, the imaged film is then removed from the imageable article. The imageable article is then developed with a suitable developer to form a relief image. The imaged film may then be reused to make additional articles bearing the relief image.

Abstract: A method for the fabrication of patterned devices, in which a latent image is initially formed in a photosensitive material on a carrier, and the exposed material containing the latent image is physically transferred to a substrate before processing. Physical transfer is enhanced by the appropriate selection of coating surface properties and additional coating layers, and by processing steps, such as heating and UV exposure, to promote adhesion to the substrate and detachment from the carrier.

Abstract: A multicolor image forming material comprising: an image receiving sheet comprising an image receiving layer; and at least five heat transfer sheets different in color each comprising a substrate, a light-heat conversion layer and an image forming layer, each of the heat transfer sheets being adapted to be superposed on the image receiving sheet with the image forming layer facing the image receiving layer and irradiated with laser light to transfer the irradiated area of the image forming layer to the image receiving layer to record an image on the image receiving sheet, wherein the area of the recording has a size of 515 mm by 728 mm or larger, and at least one of the heat transfer sheets comprises titanium oxide as a colorant in the image forming layer thereof.

Abstract: Method and apparatus for peeling a carrier web having a protective layer from a keeper sheet of image-bearing medium. The carrier web and the protective layer are peeled about a peel member as the keeper sheet moves over and is deformed by a constraining roller located at or downstream of the peel member putting the protective layer in tension. Preferably, at least one of the peel member or the constraining roller has a compliant material covering to facilitate separation of unused portions of the protective layer from edges of the keeper.

Abstract: A mass transfer imaging element comprising a substrate having a surface colourant layer containing a pigment to be imagewise transferred, wherein said colourant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.

Abstract: The invention pertains to the field of fabrication of devices of various purposes, which use anisotropic films: polarizers, retarders, etc., as well as technology of obtaining coatings with anisotropy of electric conductivity, magnetic properties, thermal conduction and other physical properties.

Abstract: A multicolor image-forming material of recording an image using an image-receiving sheet comprising a support having thereon at least an image-receiving layer, and thermal transfer sheets for forming four or more different colors each comprising a support having thereon at least a light-to-heat conversion layer and an image-forming layer, said image being recorded by superposing each said thermal transfer sheet and said image-receiving sheet such that the image-forming layer of the thermal transfer sheet and the image-receiving layer of the image-receiving layer come to face each other, irradiating laser light and transferring the image-forming layer in the region irradiated with the laser light onto the image-receiving layer of the image-receiving sheet, wherein the adhesive tape peeling strength on the image-receiving layer surface of said image-receiving sheet is from 800 to 20,000 mN/cm at room temperature.

Abstract: A multicolor itage-forming material comprising: an image-receiving sheet comprising a support and an image-receiving layer; and at least four thermal transfer sheets each comprising a support, a light-to-heat converting layer and an image-forming layer, and each having a different color, wherein an image is formed by the method comprising the steps of: superposing each one of the at least four thermal transfer sheets on the image-receiving sheet to be in a state of the image-forming layer being in contact with the image-receiving layer; and irradiating the thermal transfer sheet with a laser beam to transfer an image in an area of the image-forming layer subjected to irradiation onto the image-receiving layer, the image-receiving sheet has both lengthwise and breadthwise lengths of 50 cm or more, and an area (length×breadth) of 3,000 cm2 or more, and a spectral reflectance of a surface of the image-receiving layer to the laser beam is 65% or more.

Abstract: The present invention provides an active primer that includes an electronically active material dispersed in a binder. The active primer can be disposed between a thermal transfer donor sheet and a receptor to assist selective thermal transfer of a material from the donor sheet to the receptor to form at least a portion of an electronic device on the receptor. The binder of the active primer can be selected to improve adhesion of the transferred material to the receptor, or to enhance other transfer properties. The electronically active material of the active primer can be selected to maintain a desired level of functionality in the electronic device being patterned on the receptor.

Abstract: A method of producing an organic LED display panel, which includes: a step of preparing a donor film by forming a transfer film on a base film comprising at least a foundation film and a light-to-heat conversion layer and a step of combining the donor film with a substrate and irradiating the donor film with one of a light beam and a heat radiation beam to pattern-transfer the transfer film from the donor film onto the substrate, wherein surfaces of the base film and the substrate which are to be brought into contact with the transfer film are hydrophilic or hydrophobic, and have water contact angles &thgr;1 and &thgr;2, respectively, which satisfy the following expression (I):

Abstract: Lithographic imaging techniques begin with a donor member having substrate substantially transparent to imaging radiation and a transferable material thereover; the substrate and the transferable material differ in affinity for ink and/or a liquid to which ink will not adhere. The donor member is exposed to imaging radiation in an imagewise pattern so as to cause displacement of the transfer material from the donor member in accordance with that pattern. Following the imagewise displacement, the donor member can be used as a lithographic printing member.

Abstract: Patterned articles, such as RFID antenna, are made by subablation, a process comprising the steps of: A. providing a substrate having a coating, such as a metal or metal oxide, and an interface comprising the thin region where the coating and the substrate are closest to each other; B. exposing at least one part of the total area of the coating to a flux of electromagnetic energy, Such as a focused excimer laser beam, sufficient to disrupt the interface but insufficient to ablate the coating, and C. removing the parts of the coating in registry with the portion of the interface area that was disrupted, by means such as ultrasonic agitation. The process has advantages over photo-resist processes in that there is no residual chemical resist left on the product and no undercutting of the pattern or image. It has advantages over laser ablation processes in that higher throughput is possible at the same energy level and there is no microscopic debris left on the product surface.

Abstract: Methods and associated apparatus are disclosed for use in mounting particles on and de-mounting particles from a substrate having an array of tacky and non-tacky areas. The particles can be either electrically conducting or electrically non-conducting. Selection of electrically conducting particles is preferred. The substrate having an array of tacky and non-tacky areas can either be electrically non-conducting (e.g., a dielectric substrate) or electrically-conducting. The methods involve use of first and second electrode plates with the substrate therebetween, the plates having applied thereto a direct current potential, which potential in preferred embodiments is reversed in polarity for a number N of cycles. Methods and articles are disclosed using an electrically conductive surface adjacent the tacky and non-tacky areas to minimize static buildup on the particles and tacky and non-tacky areas.

Abstract: A preparation method of an image forming material comprising a support having thereon at least an image forming layer is desclosed, comprising subjecting one side of the support to a treatment to modify the surface of the support and coating an image forming layer on the surface-modified support, wherein the image forming layer contains a resin containing a polar group and an compound containing an isocyanate group and the modified surface of the support exhibiting a surface energy of 45 to 60 dyne/cm, and wherein the image forming material is imagewise exposed to a high density energy light, thereby making an exposed area of the image forming layer removable and removing the removable image forming layer to form an image.

Abstract: This invention relates to positive working, peel apart, photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process. The method applies an adhesive to a temporary support and then laminates it to a receiver with removal of the temporary support. A photosensitive layer on a support is laminated to the adhesive, exposed, and peeled apart to form a positive image. Additional adhesive layers and photosensitive layers are similarly processed to provide a full color reproduction.

Abstract: A mass transfer imaging element comprising a substrate having a surface colourant layer containing a pigment to be imagewise transferred, wherein said colourant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.

Abstract: A high resolution thermal imaging medium including a support web having an image forming surface of a material which may be temporarily liquified by heat and upon which is deposited a particulate or porous layer of an image forming substance which is wettable by the material during its liquified state.

Abstract: A flexographic varnishing plate, used for the selective application of varnish over printed areas, is made by cutting an elastomeric layer bonded to a clear substrate with a pressure-sensitive adhesive. The elastomer is peeled off from the areas which should not be varnished and an exposure to ultra-violet light increases the strength of the adhesive holding the remaining elastomer to the substrate. The plate can be used on lithographic and flexographic printing presses.

Abstract: Thermal transfer articles of the invention comprising a carrier, optionally a release layer, a color layer releasably adhered thereto, and optionally an adherence layer on the bottom side of the color layer. Also graphic imaging compositions and methods for thermal transfer using such articles and compositions and graphic articles made by such methods. The transfer articles 1) exhibit thermoplastic, low cohesive properties during transfer such that good image resolution and transfer is achieved and 2) are radiation crosslinked after transfer such that a durable image is formed.

Abstract: Improved processes for laser thermal imaging and imaged laserable assemblages obtained using the improved processes of this invention are described. These improved processes operate effectively at high speeds and also afford high image densities and good durability of images present on receiver elements upon thermal imaging done in accordance with these improved processes. One application of the improved process provides a color filter element.

Abstract: The present invention relates to a method for negative a positive image, using a negative acting color proofing element comprising, sequentially, a strippable cover sheet; a crosslinked layer containing a polymer having phenolic groups; a color layer, containing a colorant, a polymeric binder, a polymerizable monomer and, optionally, a photoinitiator; a photoadhering layer containing polymerizable groups, and, optionally, a free radical photoinitiator; and a optional thermoplastic adhesive layer. At least one of the color layer and the photoadhering layer containing the photoinitiator. The element is first exposed to actinic radiation and then laminated to a receiver sheet. The composite peeled apart to thereby form a colored negative image on the receiver sheet.

Abstract: A planographic printing plate includes a radiation sensitive layer which may comprise a rubber material. Application of heat causes exposed areas to be vulcanized. The plate may be developed by applying a force to the radiation sensitive layer, for example by rubbing, thereby to remove non-exposed areas.

Abstract: The invention relates to a peel-apart, single sheet color proofing system capable of producing a negative image on a receiver sheet upon exposure to infrared laser radiation and peel development. The invention provides a negative working thermal imageable element for infrared laser imaging having a substantially transparent substrate, an infrared radiation sensitive, crosslinked thermal transfer layer on a surface of the substrate having a substantially uniform admixture of carbon black and a crosslinked polymer, a color layer on the crosslinked thermal transfer layer having a substantially uniform admixture of an organic binder and a colorant, and a thermoplastic adhesive layer on the color layer. The invention also provides a method for producing a negative image and a method for producing a negative working thermal imageable element.

Abstract: The invention relates to a radiation-sensitive material comprising A) a multilayer support material, B) a colored photopolymerizable layer, and C) an adhesive layer. The multilayer support material consists of at least two sheet-form materials, which are bonded to one another in such a way that the adhesion between the two sheet-form materials is less than the adhesion between the radiation-sensitive layer and the adjacent support material. The invention furthermore relates to a process in which a colored image, in particular a multicolored image comprising a plurality of primary-color images, is produced on an image-receiving material.

Abstract: The invention relates to a process for the production of a colored image for color proofing of copy masters for multicolor printing and a layer material for carrying out this process.A positive image of the exposure mask (color separation film) is produced by lamination of a photosensitive material onto a colored layer material, followed by imagewise exposure and peeling-off of a film support, or a negative image of the exposure mask is obtained by imagewise exposure of the photosensitive material before the lamination, accompanied by flood exposure after lamination followed by peeling-off of a film support. The two procedures use the same materials and do not require wet development. For each single-color image, only one lamination step is required.

Abstract: According to the present invention there is provided a heat sensitive imaging element comprisinga support having a hydrophilic surfacecontiguous to said hydrophilic surface of a support a hydrophobic heat sensitive composition comprising a hydrophobic polymer binder, a compound capable of converting light into heat, and a reactive compound or mixture of reactive compounds present in an amount which surpasses the absorptive capacity of the hydrophobic polymer binder for said compound or mixture of compounds, the said reactive compound or mixture of compounds being reactive under the influence of heat or under the influence of a reagent which is obtained by decomposition of a heat sensitive compoundone or more thermo-adhesive layers, at least one of the thermo-adhesive layers being contiguous to the hydrophobic heat sensitive composition.

Abstract: A process for producing a colored image by laminating a light-sensitive material comprising a temporary support film (i), a colored light-sensitive layer and a heat-activable adhesive layer onto an image-receiving material at elevated temperature and under pressure, subjecting the light-sensitive layer to imagewise exposure and developing by peeling off the support film, characterized in that the image-receiving material comprises a light-sensitive compound which, on irradiation, releases a gas which remains trapped in the image-receiving material in the form of gas bubbles. The advantage of the process is that, on irradiation under a halftone original, the size of the halftone dots in the coloured image produced on such an image-receiving material is optically reduced.

Abstract: The present invention relates to a development material by means of a latent, colored image, obtained by laminating another, photopolymerizable material colored in a primary color onto an image-receiving material, peeling-off the film support and exposing the material under the associated negative color separation film, can be developed by laminating the development material onto the latent image and then peeling-off the development material together with the non-image areas. The invention also relates to a process for the production of a color proof using this development material in combination with photopolymerizable materials in the various primary colors.

Abstract: A method for producing a positive as well as a negative multicolor color-proof image.The invention relates to a color proofing process in which a multicolor image is produced from a plurality of single-color images in register with the aid of a colored, photosensitive, photopolymerizable material on an image-receiving material. Depending on the processing variant, both positive and negative film masters can be processed, even simultaneously on a single receiving material, and it is not necessary for the emission spectrum of the light source to be variable.

Abstract: A method of forming a fluorescent screen, such as a black matrix or a color filter, on a front panel of a cathode ray tube is described. The method comprises the steps of forming a photosensitive adhesion layer on an inner surface of the front panel, exposing the photosensitive adhesion layer through a color selecting electrode having a plurality of slots for reducing adhesion level of exposed area of the photosensitive adhesion layer, bringing a pigment layer provided on a supporting sheet into intimate contact with the photosensitive adhesion layer, applying pressure to the pigment layer and the photosensitive layer, and peeling off the supporting sheet from the pigment layer. Alternatively, a pigment may be dispersed in the photosensitive adhesion pigment layer.

Abstract: An image forming material is disclosed which comprises an image receiving sheet having been laminated on an imaging sheet, the imaging sheet comprising a support and provided thereon, an image forming layer contacting the image receiving sheet, an image being formed by exposing the material to a high density energy light to reduce adhesion between the image forming layer and the support at exposed portions without substantially changing adhesion between the image forming layer and the image receiving sheet and then peeling the image receiving sheet from the image forming layer to transfer the image forming layer at exposed portions to the image receiving sheet, wherein both surfaces of the image receiving sheet before the lamination have an average surface roughness Ra of 0.05 to 0.4 .mu.m.

Abstract: A spot gloss film element for color systems which provides a glossy sheen to image-bearing receiver sheets in areas which were exposed to actinic radiation, while the unexposed areas remain partially or completely matte. The film element comprises, sequentially, a strippable, transparent cover sheet; a crosslinked phenolic layer; a gloss layer, which comprises an organic binder, a polymerizable component, a particulate material, and an optional photoinitiator; a photoadhering layer, which comprises a polymerizable component, a binder, and an optional photoinitiator; and a thermoplastic adhesive layer. The spot gloss film is laminated to an image bearing receiver sheet. The gloss layer and the photoadhering layer are exposed to actinic radiation through the transparent cover sheet and crosslinked phenolic layer.

Abstract: An image forming material is disclosed which comprises a support and provided thereon, an image forming layer and an image protective layer in that order, the image forming layer containing a colorant and a first binder resin, and the image protective layer containing fine particles in an amount of 2 to 150 mg/M.sup.2 and a second binder resin and having a thickness of 0.03 to 1.0 .mu.m, wherein an image is formed by exposing the material to a high density energy light to reduce adhesion between the image forming layer and the support and then removing the image forming layer at exposed portions.

Abstract: A process is described for the formation of a color image on a substrate comprising the steps of:a) providing a donor element comprising element comprises a carrier substrate, color containing photohardenable layer, and photopolymerizable adhesive layer in which the unexposed photopolymer has a viscosity at 25.degree. C. of less than 100,000 cps,b) adhering said photopolymer adhesive layer to a first substrate,c) irradiating said photopolymer adhesive in an imagewise distribution of radiation to polymerize said adhesive in an imagewise distribution, andd) stripping said element from said first substrate leaving an imagewise distribution of said color containing layer secured to said substrate. This process can be used to form any type of color image and is particularly useful in the formation of color proofs. Both positive and negative images can be provided, a positive image on the element and a negative image on the substrate.

Abstract: The present invention provides a method for obtaining a lithographic printing plate comprising the steps of: (a) image-wise or information-wise exposing a photosensitive imaging element comprising on a hydrophilic surface of a support a hydrophobic photosensitive layer contiguous to said hydrophilic surface, comprising (i) a photosensitive acid precursor and (ii) a hydrophobic polymeric binder and (b) developing said exposed imaging element by the steps of: (i) laminating before or after said exposure an uppermost layer of said imaging element to a receptor layer and (ii) peeling away the receptor layer from the hydrophilic surface of the support thus transferring said hydrophobic photosensitive composition patternwise to the receptor layer, characterized in that said hydrophobic photosensitive layer comprises as photosensitive acid precursor a non-ionic photosensitive precursor of a sulphonic acid or a non-ionic photosensitive precursor of an optionally partially esterified phosphonic acid or a non-ionic pho

Abstract: According to the present invention there is provided a method for preparing a hydrophilic surface of an aluminum lithographic base comprising the steps of roughening and anodizing a side of an aluminum foil and sealing said side of the aluminum foil with hot water within a temperature range from 70.degree. C. to 100.degree. C. for at least 5 seconds and rinsing said side of the aluminum foil with water characterized in that between said hot water treatment and said rinsing said side of the aluminum foil is treated with an aqueous silicate solution within a temperature range from 70.degree. C. to 100.degree. C. for at least 5 seconds.