Abstract: A method for producing a flexographic plate that includes a base layer and a layer of a photosensitive material fixed on the base layer. An image is produced on the photosensitive layer by selective reticulation. Areas to be reticulated are exposed to amplitude-modulated laser light with a wavelength ranging from 390 to 410 nm, which scans the surface of the photosensitive layer. The non-reticulated areas are then removed.

Abstract: The invention concerns a compressible plate for flexographic printing, designed to be positioned on a support cylinder of a printing machine. The invention is characterized in that said plate (1) comprises a photopolymer layer (10) and a compressible layer (11) made of a material exhibiting voids forming between 10 and 60% by volume of said compressible layer, the material comprising at least 70% by weight of a polymer or a mixture of polymers chemically compatible with the photopolymer.

Abstract: A method for making a printing blanket having an outer lithographic layer and at the back, on the side opposite to the lithographic layer, a layer made of polymer material, entails providing polymer material that can be rectified, and then rectifying the polymer material to help control a thickness of the blanket. The invention is useful in the field of printing machines.

Abstract: The invention concerns an offset printing blanket. The blanket is of the type comprising an outer printing layer, an inner layer whereby the blanket is in contact with a support cylinder and at least one compressible intermediate layer. The blanket is characterized in that it comprises a printing layer (10) whereof the printing surface has very slight surface roughness (Ra) advantageously less than 0.4 micrometer. The invention is useful in the field of offset printing.

Abstract: The invention concerns a compressible plate for flexographic printing, designed to be positioned on a support cylinder of a printing machine. The invention is characterised in that said plate (1) comprises a photopolymer layer (10) and a compressible layer (11) made of a material exhibiting voids forming between 10 and 60% by volume of said compressible layer, the material comprising at least 70% by weight of a polymer or a mixture of polymers chemically compatible with the photopolymer.

Abstract: A method for making a printing blanket resulting from assembling a plurality of layers employs elastomer layers which do not contain thermal cross-linking agents and are of the thermoplastic type. Such a printing blanket is useful in the field of printing machines.

Abstract: The invention concerns a sleeve to be mounted on a metal support cylinder and including at least one functional covering (20) forming the external surface of the sleeve, and an integration covering (21) on the cylinder (1) whose constitutive material is intended to be fixed to the metal of the cylinder by a physical link. The invention is applicable to the transformation of lap products.

Abstract: The invention concerns a compressible plate for flexographic printing, designed to be positioned on a support cylinder of a printing machine. The invention is characterised in that said plate (1) comprises a photopolymer layer (10) and a compressible layer (11) made of a material exhibiting voids forming between 10 and 60% by volume of said compressible layer, the material comprising at least 70% by weight of a polymer or a mixture of polymers chemically compatible with the photopolymer.

Abstract: A method for producing a flexographic plate that includes a base layer and a layer of a photosensitive material fixed on the base layer. An image is produced on the photosensitive layer by selective reticulation. Areas to be reticulated are exposed to amplitude-modulated laser light with a wavelength ranging from 390 to 410 nm, which scans the surface of the photosensitive layer. The non-reticulated areas are then removed.

Abstract: The invention concerns a printing blanket for a cylinder of a printing machine, specifically of offset type, including a ground or polished or even molded lithographic layer, at least one reinforcing layer and at least one compressible layer. According to the invention, at least one surface property of the invention, namely the overall surface energy of the blanket, the surface energy with a polar character of the blanket or the average roughness of the blanket varies on the outer surface of the blanket crosswise. The invention is applicable for any indirect printing process, especially offset printing as function.

Abstract: The invention concerns a printing blanket for a cylinder of a printing machine, specifically of offset type, including a ground or polished or even molded lithographic layer, at least one reinforcing layer and at least one compressible layer. According to the invention, at least one surface property of the invention, namely the overall surface energy of the blanket, the surface energy with a polar character of the blanket or the average roughness of the blanket varies on the outer surface of the blanket crosswise. The invention is applicable for any indirect printing process, especially offset printing as function.

Abstract: A method for making a printing blanket resulting from assembling a plurality of layers employs elastomer layers which do not contain thermal cross-linking agents and are of the thermoplastic type. Such a printing blanket is useful in the field of printing machines.

Abstract: A method for making a printing blanket having an outer lithographic layer and at the back, on the side opposite to the lithographic layer, a layer made of polymer material, entails providing polymer material that can be rectified, and then rectifying the polymer material to help control a thickness of the blanket. The invention is useful in the field of printing machines.

Abstract: The invention concerns a compressible plate for flexographic printing, designed to be positioned on a support cylinder of a printing machine. The invention is characterised in that said plate (1) comprises a photopolymer layer (10) and a compressible layer (11) made of a material exhibiting voids forming between 10 and 60% by volume of said compressible layer, the material comprising at least 70% by weight of a polymer or a mixture of polymers chemically compatible with the photopolymer.

Abstract: The invention concerns a sleeve designed to mountedon a metal support roll and comprising layer (20) forming the outer surface of the sleeve, and layer for being fixed (21) on the roll (1) whereof the constituent material is designed to be fixed to the roll metal by a physicl interface. The invention is useful for transforming lap products.

Abstract: A lithographic layer for a printing blanket and the printing offset blanket incorporating same, wherein the lithographic layer is made from a thermoplastic material with a polar character providing a maximum transfer of printing ink from the blanket to the paper and is easily washable thereby resulting in a minimum ink consumption.