A method of forming an insulator film by flexographic printing is provided with which an insulator film is formed on a printing object by using ink as an insulator film material and a flexographic printing plate with halftone dots convexly formed on a convex portion thereof that defines a printing pattern. A halftone dot condition change region with a condition of the halftone dots varied such that an ink retention volume therein is smaller than that in other region on the convex portion is provided on a part of the convex portion corresponding to an edge of the printing pattern.

A cylindrical printing plate formed with high precision and used for printing on a metal can body, particularly an aluminum or aluminum alloy can body. The forming method of a printing plate forms the printing plate to be mounted on an outer periphery of a cylindrical plate cylinder, and includes a notch forming step of forming a positioning notch in a rectangular elastic material sheet in which a resin layer to be served as a plate section is formed on one surface. A cylindrical material forming step rolls the elastic material sheet in which the positioning notch is formed and overlaps both end portions of the elastic material sheet and joining them in a cylindrical shape. A plate section engraving step engraves a printing pattern on the plate section of the elastic material sheet formed into a cylinder shape.

A cylindrical printing plate formed with high precision and used for printing on a metal can body, particularly an aluminum or aluminum alloy can body. The forming method of a printing plate forms the printing plate to be mounted on an outer periphery of a cylindrical plate cylinder, and includes a notch forming step of forming a positioning notch in a rectangular elastic material sheet in which a resin layer to be served as a plate section is formed on one surface. A cylindrical material forming step rolls the elastic material sheet in which the positioning notch is formed and overlaps both end portions of the elastic material sheet and joining them in a cylindrical shape. A plate section engraving step engraves a printing pattern on the plate section of the elastic material sheet formed into a cylinder shape.

Systems and processes for making a flexo plate, and plates made thereby. Non-printing indicia defined by areas of presence and absence of polymer in the plate floor created using microdots imaged during a LAMS layer imaging step are readable downstream of the washing or other non-cured-polymer-removal step but not to print in the printing step. The non-printing indicia may define a repeating pattern of alphanumeric characters, non-text graphics, or a combination thereof. A difference in growth of plate structures corresponding to different types of microdots may be used for characterizing processing conditions.

A print head for use in a flexographic process, the print head comprising a flat surface having a first portion with a first surface energy and a second portion with a second surface energy that is different from the first surface energy.

A relief printing original plate for rotary letterpress printing wherein at least an adhesive layer, a photosensitive resin layer and a cover film are successively layered on a support, wherein the photosensitive resin layer contains at least a synthetic rubber-based polymer, a photopolymerizable unsaturated compound and a photopolymerization initiator, and Shore A hardness of a surface of the photosensitive resin layer after photo-curing is 80 to 95. Preferably, the synthetic rubber-based polymer is a hydrophobic polymer obtained from a water-dispersible latex having a weight-average gelation degree of 50 to 80%. Preferably, the photosensitive resin layer contains 20 to 70% by mass of the synthetic rubber-based polymer. The relief printing original plate is suitably used for a rotary printing machine of a center drum type.

A relief printing original plate for rotary letterpress printing wherein at least an adhesive layer, a photosensitive resin layer and a cover film are successively layered on a support, wherein the photosensitive resin layer contains at least a synthetic rubber-based polymer, a photopolymerizable unsaturated compound and a photopolymerization initiator, and Shore A hardness of a surface of the photosensitive resin layer after photo-curing is 80 to 95. Preferably, the synthetic rubber-based polymer is a hydrophobic polymer obtained from a water-dispersible latex having a weight-average gelation degree of 50 to 80%. Preferably, the photosensitive resin layer contains 20 to 70% by mass of the synthetic rubber-based polymer. The relief printing original plate is suitably used for a rotary printing machine of a center drum type.

A printing sleeve includes a first and radially inward layer having an inner side for directly contacting the outer side of a printing cylinder, and an outer side which is radially opposite the inner side. The first and radially inward layer has a glass fiber reinforced compressible compound such that the glass fibers may absorb the forces that arise in the circumferential direction and/or in the longitudinal direction, and the compressible compound elements may absorb the pressures that arise in the radial direction. In this way, the materials which to date act separately in the base sleeve and the compressible layer are combined in one common layer in which said materials each may perform their function.

A printing sleeve includes a first and radially inward layer having an inner side for directly contacting the outer side of a printing cylinder, and an outer side which is radially opposite the inner side. The first and radially inward layer has a glass fiber reinforced compressible compound such that the glass fibers may absorb the forces that arise in the circumferential direction and/or in the longitudinal direction, and the compressible compound elements may absorb the pressures that arise in the radial direction. In this way, the materials which to date act separately in the base sleeve and the compressible layer are combined in one common layer in which said materials each may perform their function.

A printing plate which can form a graphic pattern having excellent linearity of a side edge along the printing direction and a good planarization property in the case of forming a graphic pattern in which a width direction dimension, a dimension in a direction orthogonal to the printing direction, is small; a printing device including the printing plate; and a method for manufacturing a laminated ceramic electronic component.