The present invention relates to a process for making an etched pattern comprising a step of depositing onto a printable metal surface droplets of an ink composition provided by a printing method, wherein the ink composition comprises a first ink vehicle being water, a second ink vehicle being an organic compound and an etchant being an acid or abase according to the Brnsted definition, characterized in that the ink composition has a pH in the range of from (0) to (4) or from (9) to (14). The invention further relates to substrates having a metal surface with an etched pattern, to the use of such substrates in various applications, to articles comprising the inventive substrate and to the use of the inventive process for the production of metal products.

A liquid photopolymer resin composition comprising: a) at least one ethylenically unsaturated prepolymer; b) at least one ethylenically unsaturated monomer; c) at least one photoinitiator; and d) at least one polythiol and a method of using the same to make soft relief image printing plates that have good tensile strength and elongation.

The invention relates to a method for producing pictorial relief structures on a layer construction. The method comprises the provision of a layer construction having a substrate layer. After this, at least one fluid containing at least one first reactive component is applied pictorially to the substrate, wherein the pictorial application takes place in the form of a plurality of droplets with a droplet volume of less than 2 l, and wherein the droplets are positioned pictorially. After this, there is an at least partial diffusing of the at least one first reactive component into the substrate layer for a predefined exposure time and/or an at least partial diffusing of at least one second reactive component into the pictorially positioned droplets of fluid for a predefined exposure time, wherein the substrate layer comprises the at least one second reactive component. The created relief is then fixed under the influence of heat and/or radiation via a reaction involving the first reactive component and/or the second reactive component.

Further aspects of the invention relate to a pictorial relief structure produced according to the method and to the use of the pictorial relief structure as a printing form, as a microfluidic component, as a microreactor, as a phoretic cell, as a light-controlling element for color representation, as photonic crystals or as flexible parts of items of clothing.

A gravure offset printing apparatus includes two clamps, a printing roller and a driving device. The two clamps are applicable to clamp individually two opposing ends of a blanket. The printing roller having an axial direction parallel to a first direction is disposed between the two clamps. The blanket wraps part of a radial periphery of the printing roller. The driving device is to drive the two clamps to undergo reverse motions so as to displace the blanket, and the blanket further rotates the printing roller. A gravure module, disposed on a platform of the gravure offset printing apparatus, has a groove for containing an offset ink. While the two clamps pull the blanket to undergo the reverse motions, a surface of the blanket contacts the gravure module so as to adhere the offset ink on the surface of the blanket.

This invention discloses digitally printed plate, the manufacturing method and applications thereof, is characterized in that the digitally printed plate is of respectively from top to bottom surface lacquer layer, texture layer, second wear layer, first wear layer, pattern layer, bottom lacquer layer, base layer. The digitally printed plated has various patterns, with sufficient materials, printing unrepeatable stereoscopic pattern is possible, so it can satisfy customers' personalized customization requirements, without wasting abundant time or cost, and with process reduced, production efficiency is improved, enabling order manufacturing order insert and sample making at any time.

A method for reconstructing a relief print master with a three-dimensional printer includes introducing cavities inside the relief print master in order to control its compressibility.

A method of producing a flexographic printing plate using a continuous liquid interphase is provided herein. This method allows for significantly reduced production times and fewer preparation steps compared to standard non-continuous techniques and results in less waste than typical methods for preparing flexographic printing plates. The printing plate provided by using continuous liquid interphase production results in a printing plate with desirable elastomeric elongation, desirable hardness, plate thickness in the range of 0.030 inches to 0.250 inches, and comprises printing dots with desirable characteristics.

A master tool is provided with an ink pattern on a major surface thereof. The ink pattern is formed by a screen printing process. A stamp-making material is applied to the major surface of the master tool to form a stamp having a stamping pattern being negative to the ink pattern of the master tool. The stamping pattern is inked with an ink composition and contacted with a metalized surface to form a printed pattern on a metalized surface of a substrate according to the stamping pattern. Using the printed pattern as an etching mask, the metalized surface is etched to form electrically conductive traces on the substrate.

A composite panel for use in the manufacture of a letterpress plate has a carrier layer, with at least one photo layer which can be structured via electromagnetic radiation in a wavelength range. The photo layer is arranged on the carrier layer. The task of proposing a composite panel use in the manufacture of a letterpress plate is achieved by the fact that a barrier layer is provided. The barrier layer is arranged on the side of the photo layer opposite to the carrier layer. The barrier layer is essentially transparent in the wavelength range in which the photo layer can be structured. The present disclosure concerns a process for manufacturing a letterpress plate using at least one composite panel and a process for manufacturing a composite plate in accordance with the invention. The invention concerns the use of a composite material in a composite panel for a letterpress plate.

A gravure offset printing apparatus includes two clamps, a printing roller and a driving device. The two clamps are applicable to clamp individually two opposing ends of a blanket. The printing roller having an axial direction parallel to a first direction is disposed between the two clamps. The blanket wraps part of a radial periphery of the printing roller. The driving device is to drive the two clamps to undergo reverse motions so as to displace the blanket, and the blanket further rotates the printing roller. A gravure module, disposed on a platform of the gravure offset printing apparatus, has a groove for containing an offset ink. While the two clamps pull the blanket to undergo the reverse motions, a surface of the blanket contacts the gravure module so as to adhere the offset ink on the surface of the blanket.