Abstract: The present invention relates to printable security paper that includes a region capable of receiving printed indicia on the front side and on the reverse side which are observable in reflected light and form an image observable in transmitted light, as security element protecting against two-sided copying, characterized in that such region is a screened region having an average overall opacity less than the opacity of the vellum part of the rest of the paper, said screened region being made up from alternations of vellum miniregions, having an approximately constant thickness equal to that of the vellum part of the rest of the paper, and of miniregions of reduced opacity because of their smaller thickness compared with the vellum miniregions. The invention also relates to the security document obtained with this paper.

Abstract: The invention concerns a security document comprising, as security element against recto/verso copying, indicia present on both sides and capable of being viewed under reflected lighting and forming an image capable of being viewed under transmitted light. The invention is characterized in that said indicia comprise lines and form said image with 3D effect.

Abstract: A positive-working lithographic printing plate precursor is disclosed comprising on a grained and anodized aluminum support having a hydrophilic surface or which is provided with hydrophilic layer, a coating comprising: (i) an infrared absorbing agent and at least one colorant; (ii) a first layer comprising a heat-sensitive oleophilic resin; and (iii) a second layer between said first layer and said hydrophilic support wherein said second layer comprises a polymer comprising at least one monomeric unit that comprises at least one sulfonamide group; wherein the surface of said grained and anodized aluminum support has a mean pit depth equal or smaller than 2.2 ?m.

Abstract: A method of infusing a dye into the surface of an article formed of a plastic material comprises contacting the surface with a solution including one or more solvents each aggressive to the plastic material, one or more dyes and one or more substances each capable of plasticizing the plastic material. If the plastic material is polycarbonate, then the aggressive solvent may be one or more chlorinated hydrocarbons. The dye may be a photochromic dye, a cosmetic tinting dye, dyes for absorbing infrared, laser and ultraviolet radiation, or combinations thereof. A wide range of plasticizers has been investigated. The article is contacted by the solution for ten seconds to one minute; and nearly all the infused solvent is then evaporated from the article by heating. The use of one or more plasticizers reduces or eliminates bubbling or hazing of the contacted surface during solvent evaporation.

Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a coupler that forms a dye for which the &lgr;max using spin-coating is shifted towards the infrared region of the spectrum by at least 30 nm, when compared to the &lgr;max of the same dye in solution form, to a value of at least 700 nm. Such an element is useful for recording metadata with an image.

Abstract: Substrates are patterned with antibodies attached thereto at discrete locations from which absorption resistant coating is removed by selectively controlled mechanical scribing contact to avoid chemical removal so as to decrease fabrication costs and increase fabrication speed.

Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z* is an independently selected substituent group where p is 0 to 2; V is a substituent group containing a sulfonamido group; R4 is hydrogen or a group bonded to the carbonamido group by an aliphatic carbon atom; provided that the combined sum of the aliphatic carbon atoms in V, R4 and all Z* is at least 8. The element provides a dye of improved hue.

Abstract: A color photographic element includes a support, a silver halide emulsion layer, and associated therewith a phenolic dye-forming coupler having the formula ##STR1## wherein R.sup.1 represents hydrogen, a straight or branched chain alkyl group having 1 to about 20 carbon atoms, a cycloalkyl group having about 3 to 8 carbon atoms in the ring, or an aryl group having 6 to about 20 carbon atoms;R.sup.2 represents hydrogen or a substituent;R.sup.3 represents hydrogen, halogen, or alkyl, cycloalkyl or aryl groups as defined for R.sup.1 ;R.sup.4 represents a fluorosubstituted alkyl group having 1 to about 20 carbon atoms, a fluorosubstituted cycloalkyl group having about 3 to 8 carbon atoms, or a fluorosubstituted aryl group having 6 to about 20 carbon atoms;R.sup.5 represents hydrogen or a substituent; X represents hydrogen or a coupling-off group; Z represents carbon atoms or hetero atoms necessary to complete a 5-,6-, or 7-membered ring; m is 0 to 3; and n is 0 to 4.

Abstract: A patterned multiple antibody substrate for use in biosensors or immunosensors is produced by (1) coating an antibody-adsorbent substrate with a material that resists antibody adsorption, (2) using ion beam sputtering, laser ablation, or mechanical scribing to remove the coating at specific sites on the substrate, and then (3) adsorbing specific antibodies at the sites. The substrate is capable of detecting multiple chemical species simultaneously.

Abstract: A direct drawing lithographic printing plate precursor suitable for offset printing, capable of providing prints having a clear image with no stains, which comprise a layer containing a binding resin and a zinc oxide powder having a phytic group.

Abstract: The present invention provides a dye solution for a photosensitive lithographic printing plate requiring no fountain solution comprising a photosensitive layer and a silicone rubber layer provided in this order on a support, which comprises at least one basic dye, at least one organic solvent having a water solubility of less than 10% at 20.degree. C., at least one hydrotrope agent, and at least one anionic surface active agent represented by the following general formula (I):R.sup.1 O--(CH.sub.2 CH.sub.2 O).sub.n --SO.sub.3 M.sup.1 (I)whereinR.sup.1 represents an alkyl, aryl, aralkyl, alkenyl or alkynyl group;M.sup.1 represents an alkaline metal, NH.sub.4, NH(C.sub.2 H.sub.4 OH).sub.3, NH.sub.2 (C.sub.2 H.sub.4 OH).sub.2 or NH.sub.3 (C.sub.2 H.sub.4 OH); andn represents an integer 1 to 100.

Abstract: Polymeric ledges on a metal stencil screen are made using a polymeric layer which is partially removed by a developer solution.

Abstract: Provided is an electrophotographic photoreceptor which comprises an electrically conductive support and a photoconductive layer comprising at least an organic photoconductive compound and an alkali and/or alcohol soluble binder resin provided on said support and which is used for making a lithographic printing plate therefrom by electrophotographically forming a toner image and decoating the photoconductive layer of non-image portion other than the toner image portion by contacting with an alkaline decoating solution, wherein an arithmetical mean deviation of profile (Ra.sub.1) of the surface of said electrically conductive support having said photoconductive layer thereon is 0.3-1.0 .mu.m and a ratio of Ra.sub.2 /Ra.sub.1 of an arithmetical mean deviation of profile (Ra.sub.2) of the surface of said photoconductive layer and the (Ra.sub.1) is 0.5-1.0. The image formed on the printing plate is free from indentation at the edge of the image. Resolution and sharpness of the image are improved.

Abstract: In forming a fluorescent screen of a black matrix type color picture tube, a light absorptive film is first formed on the inner surface of a face plate of the color picture tube. Formed on the light absorptive film is a light-hardenable photosensitive resin film which in turn is exposed to light through a shadow mask at portions corresponding to phosphor applying portions. The unexposed portion of the light-hardenable photosensitive film is then developed. Finally, the exposed portion of the light-hardenable photosensitive film and portion of the light absorptive film therebeneath are removed to partly perforate the light absorptive film so that in the light absorptive film, openings are formed into which the phosphor is applied.

Abstract: Method of forming a color image of a graphic object pattern directly on a support medium. A water-soluble photosensitive stencil material is coated on the support and exposed imagewise to actinic radiation. The exposed photosensitive stencil material is developed to remove the water-soluble, unexposed stencil material. A layer of water-permeable, water-insoluble color medium is applied. The color medium is treated with water or an aqueous solution to permeate the color medium and soften the stencil material which is removed by mechanical action. Alternatively, a water-insoluble photosensitive stencil material, which becomes water-soluble on exposure to actinic radiation, may be coated on the support.