This invention is related to a manufacturing method of a printing plate by using a free-seal, free-quantity liquid photopolymer sachet and an apparatus thereof. Using this technology, the liquid photopolymer sachet is no longer to be limited by quantity with 3 dimensions - width, length and thickness. It is now very free, easy and convenient to use liquid photopolymer resin in a bag to make a printing plate at any width and length with any thickness you want.

The invention provides an image forming method of forming a full-color image in which black can be expressed in addition to a color expressed by diffracted light.

Each of plural diffraction gratings R, G, and B is transferred onto a base material 30 from a transfer sheet 20 in which the plural dif fraction gratings R, G, and B are laminated, and the plural diffraction gratings R, G, and B are different from one another in a color of diffracted light observed in a particular direction. A black ink layer 34 constituted by black ink is formed on the base material 30. Thereby, a color image is formed on the base material 30, in which a color to be expressed of each pixel is expressed by a combination of luminances of colors corresponding to the diffraction gratings R, G, and B and the black ink 34.

(1) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing a binder polymer.

(2) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing an infrared absorber and an iodonium compound.

An automatic supplying apparatus for photosensitive printing plates containing a packaged article containing a packaging material which packages a bundle of photosensitive printing plates and a protective member in which an opening is formed such that a predetermined portion of a photosensitive face at a photosensitive face side of the bundle of photosensitive printing plates is exposed, in which the packaging material is formed such that it can be separated into a plurality of portions, one portion thereof has a lead member attached thereto, and by pulling the lead member, the portion can be removed to open the packaged article, a storage shelf on which the packaged article is placed, a discharging device for opening the packaged article by removing the portion of the packaged material by means of pulling the lead member, and a delivering device for conveying sheet by sheet the photosensitive printing plates exposed at the opening of the protective member from the bundle of photosensitive printing plates.

A layered bundle 12 is constructed by alternately superposing lithographic printing plates 10 and inserting paper sheets 14 in a thickness direction and further placing protective cardboards 22 on a top surface and a bottom surface of the superposed lithographic printing plates 10. The layered bundle 12 is packaged with packing paper 16. On this occasion, the layered bundle 12 is packaged so that an unsealing surface is placed on an opposite surface from an image forming surface 10P of the lithographic printing plate 10.

A printing plate material product, is provided with a printing plate material including a substrate and a image forming layer provided on the substrate; and a wireless memory tag mounted on a part of the printing plate material and including a semiconductor memory and an antenna coil through which data is written in or read from the semiconductor memory. The semiconductor memory stores product data written in at the time of the manufacturing process of the printing plate material product.

The invention provides a pattern forming method including providing a polymerization initiation layer which is obtained by fixing, by a cross-linking reaction, a polymer having functional groups having polymerization initiation ability and cross-linking groups at side chains, on a support, and forming a pattern including a preparation zone and a non-preparation zone of a graft polymer by preparing the graft polymer on the surface of the polymerization initiation layer using graft polymerization, by contacting a compound having a polymerizable group on the polymerization initiation layer and supplying energy imagewise; an image forming method which applies the pattern forming method; a pattern forming material; and a planographic printing plate.

A fine particle adsorption pattern forming method and a conductive pattern forming method are also provided.

An actinic radiation-reactive pressure-sensitive adhesive composition can be cured in air at a high speed, without irritation and bad smell, and comprises

• ① a pressure-sensitive adhesive organic compound, and
• ② an actinic radiation-curable resin comprising (1) one or more polythiol compounds and (2) one or more polyene compounds each having at least two actinic radiation-reactive carbon-to-carbon double bonds in the molecule.

A pattern of adhesive material is prepared from a resin blend which includes an adhesive resin and an energy curable resin system. The blend is exposed to a pattern of radiation which selectively hardens the system without substantially affecting the adhesive. Unexposed resin blend is removed to leave a pattern of the cured adhesive blend. The preferred adhesives include thermosetting epoxy resins, thermoplastic epoxy resins and thermoplastic acetate resins, and the preferred energy curable resins are urethane acrylates.

Mit Beschichtungsmitteln einer Viskosität von 200 bis 700 m Pas aus einer Lösung einer lichtempfindlichen, thermisch härtbaren, lackbildenden Substanz, worin zusätzlich 10 bis 50 Gew.% eines feinteiligen Füllstoffes gleichmässig verteilt sind, können gleichmässige Schutzüberzüge, besonders Lötstoppmasken auf gedruckten Schaltungen hergestellt werden.