38results about "Mounting boards" patented technology

Relief precursors with an enhanced capacity to be developed into high performing relief structures, more in particular high quality relief structures such as printing plates. A photosensitive composition (PC) for forming a photosensitive layer of a relief precursor (RP), comprising particular stabilizers and binders. By including the stabilizer and binder as described herein the stability of the melt of the photosensitive composition during production, e.g. production by extrusion, can be enhanced significantly. Such enhanced stability could be achieved without or with minimal undesired impact on the resulting printing performance and / or imaging characteristics of the reliefs formed by developing the relief precursors.

A sleeve (10) for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the decor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

The invention discloses a metal-based magnetic light drum and a processing method thereof.The light drum comprises a cylindrical light drum body and an end supporting component coaxially assembled at the end of the light drum body, and a plurality of annular air grooves are distributed in the outer cylindrical surface of the light drum body at intervals in the axial direction; the annular air grooves divide the outer cylindrical surface of the drum body into a plurality of independent annular areas, and air holes penetrating through the inner side and the outer side of the drum body in the thickness direction of the drum body are distributed in each annular air groove; a cavity is machined in the outer cylindrical surface of each annular area, a magnetic attraction structure is embedded in each cavity, and the outer surface of each magnetic attraction structure and the outer cylindrical surface of the drum body form a smooth and continuous cylindrical curved surface. The method has the beneficial effects that the metal base plate is directly adsorbed on the surface of the light drum in a magnetic attraction mode, fitting is complete, the magnetic flux is uniform, bubbles or folds are avoided, the scraping risk and imaging defects of a traditional protruding structure on the surface of the plate are eliminated, the definition and consistency of printed patterns are improved, and the printing quality is improved.

A method to manufacture a sleeve (100) for use as a printing sleeve (100a) to hold a printing plate (10) or for use as an adapter (100b) to mount a printing sleeve (100b) on a printing mandrel (40) and the sleeve. The sleeve has an outer layer (L1) for holding a printing plate (10) and / or for holding a printing sleeve (20); an optional intermediate structure (L3) comprising one or more optional intermediate layers (B, FL, FR2, C); an inner layer (L2) with an inner surface (113) configured for being mounted on an adapter or for being mounted directly on a printing mandrel. The outer layers contains a carbon nanotube component (C3) in a weight concentration (c3) in the range of 0.05 to 2.00 wt%. An electrical connection may be provided throughout the sleeve to provide an electrical pathway between the outer and inner surface of the sleeve.

The aim of the invention is to provide a device for attaching a printing plate to a printing cylinder, which device offers a uniform and optimized holding force during printing and easy removability after printing. This aim is achieved by using a device of this kind, which comprises a support (3, 4) and a layer of pressure-sensitive adhesive which is located on the support (3, 4) and has a surface (2, 5) facing the printing plate, with the surface (2, 5) of the layer of pressure-sensitive adhesive facing the printing plate comprising at least two regions (2, 5) having different adhesive forces on the printing plate.

The invention relates to the technical field of silk-screen printing, in particular to a silk-screen printing plate gasket, a preparation method thereof, a silk-screen printing method and application equipment, a multifunctional composite gasket used for silk-screen printing of vehicle-mounted glass, mobile phone glass, watch glass, tablet personal computer shells, plastic and acrylic products, a preparation method of the multifunctional composite gasket, a high-precision silk-screen printing control method and special equipment. The invention relates to a preparation method of a silk-screen plate gasket. The preparation method comprises the following steps: A1, stirring and mixing polypropylene particles and glass fibers; a2, injecting the mixture into a mold, and carrying out injection molding to form a matrix layer; and A3, in the injection molding process, an anti-skid functional layer is generated on the lower surface of the mold in situ. The contact part of the upper surface of the gasket and the silk-screen printing plate is precisely matched with a corresponding structure at the bottom of the silk-screen printing plate through the high-viscosity double-faced adhesive tape, stable supporting and positioning of the silk-screen printing plate are achieved, displacement of the silk-screen printing plate in the printing process is effectively prevented, and the surface of a product can be evenly coated with ink.

The invention relates to a device for measuring elevations on the surface of a rotating body, which is designed as a drum, roller, sleeve or plate for a graphics industry machine, and which has a first motor and a measuring device, the first motor being used to rotate the rotating body about an axis of rotation. For contactless measurement, the measuring device is part of a mount for printing plates or is integrated into the mount for printing plates; and the measuring device enables measurement and inspection of the stamp, thereby on the one hand checking the quality of the installation and on the other hand determining diameter differences. Preferably, the measuring device also includes a reference object for contactless measurement, such as an axially parallel tensioned metal wire; and a second motor and, if necessary, a further second motor to be able to adjust the measuring device and / or the reference object perpendicular to the axis of rotation. The device enables rapid and high-precision measurement of elevations, such as flexographic printing dots.

A laminated sleeve includes: a basic sleeve, an elastic layer, an inner reinforcement layer, a support layer, an outer reinforcement layer and a surface layer which are sequentially arranged in that order from inside to outside. A manufacturing method includes: cutting a plate material into support strips of the same size, arranging the support strips around a central axis of the sleeve to cover the inner reinforcement layer annularly to obtain the support layer, wrapping the outer reinforcement layer around the support layer, and obtaining the laminated sleeve after surface processing. The manufacturing method greatly expands the wide range of material choices for the support layer and allows for flexible adjustment of the outer diameter size of the product. The support layer of the laminated sleeve made by the disclosure can be made of general rigid solid materials with low density, high strength, and minimal deformation.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the décor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

A sleeve (200) for use with a printing plate (100), said sleeve being 3D printed and comprising: a cylindrical inner layer (220) configured to be mounted on an adapter sleeve (300) and / or on a printing mandrel (400), a cylindrical outer layer (210), and at least a first infill layer (230) between the outer layer and the inner layer.

(A) At least 20% by weight of compound A containing at least two ethylenically unsaturated moieties and a structural moiety; (B) at least 20% by weight of compound B containing at least two ethylenically unsaturated moieties and an alicyclic structure or a heterocyclic aliphatic structure; (C) 1 to 40% by weight of compound C, which essentially contains one ethylenically unsaturated moiety and has a viscosity of less than 100 mPa·s, preferably less than 50 mPa·s, more preferably less than 25 mPa·s when measured at 25 °C, and is different from compounds A and B; and (D) 0 to 20% by weight of compound D containing at least one ethylenically unsaturated moiety and different from compounds A, B, and C, a radiation and / or thermosetting composition (I) for a composite material, wherein the total of compounds B and A has a content of 60 to 99% by weight in light of the total content of compounds A, B, C, and optionally D, a thermosetting composition (I).

A sleeve (200) for use with a printing plate, such as a printing sleeve or an adaptor sleeve, with an outer surface (210) and with an inner surface (260), said sleeve being configured to be mounted on an adapter or on a printing mandrel by aid of a gas cushion provided between the inner surface of the sleeve and the adapter or printing mandrel, respectively, wherein the sleeve (200) comprises an electrically conductive compressible cylindrical inner layer (230); an electrically conductive cylindrical outer layer (220); an intermediate structure (250) between said inner layer and said outer layer; an electrical connection means (300) extending through said intermediate structure (250) to electrically connect said inner layer (230) and said outer layer (220); wherein the electrical connection means (300) is configured so that it is at least partially compressible together with the inner layer (230) during mounting by aid of a gas cushion.

The present invention relates to a printing form attachment device for mounting a printing plate onto a printing cylinder, the printing form attachment device comprising a support and a pressure-sensitive adhesive layer being provided on the support and having a surface being exposed to the printing plate, wherein the surface of the pressure-sensitive adhesive layer being exposed to the printing plate comprises at least two areas having different adhesive forces towards the printing plate.

(A) At least 20% by weight of compound A containing at least two ethylenically unsaturated moieties and a structural moiety; (B) at least 20% by weight of compound B containing at least two ethylenically unsaturated moieties and an alicyclic structure or a heterocyclic aliphatic structure; (C) 1 to 40% by weight of compound C, which essentially contains one ethylenically unsaturated moiety and has a viscosity of less than 100 mPa·s, preferably less than 50 mPa·s, more preferably less than 25 mPa·s when measured at 25 °C, and is different from compounds A and B; and (D) 0 to 20% by weight of compound D containing at least one ethylenically unsaturated moiety and different from compounds A, B, and C, a radiation and / or thermosetting composition (I) for a composite material, wherein the total of compounds B and A has a content of 60 to 99% by weight in light of the total content of compounds A, B, C, and optionally D, a thermosetting composition (I).

The present invention relates to relief precursors with enhanced stability. The present invention relates to relief precursors with enhanced ability to be developed into high performance relief structures, more particularly high quality relief structures such as printed boards. In addition, the present invention provides a photosensitive composition (PC) for forming a photosensitive layer of a relief precursor (RP), the photosensitive composition (PC) comprising specific stabilizers and binders. By including a stabilizer and a binder as described herein, it was found that the stability of a melt of a photosensitive composition during production, e.g., by extrusion production, can be significantly enhanced. Surprisingly, such enhanced stability may be achieved without or with minimal undesirable impact on the resulting printing performance and / or imaging characteristics of the relief formed by developing the relief precursor.

The present invention provides a flexographic printing original plate which comprises an adhesive layer that exhibits excellent solvent resistance and excellent adhesion to a supporting body. The present invention provides a flexographic printing original plate 10 which sequentially comprises, on a surface of a supporting body 12, an adhesive layer 14 and an elastic layer 16, wherein the supporting body 12 contains a polyester resin and the adhesive layer 14 contains the components (a), (b) and (c) described below. (a) a polyester resin (b) an isocyanate compound (c) a xylene resin which has a melting point or softening point of 100°C or less.

The present invention discloses an article, which includes a foam layer having a first surface and an opposite second surface. The article includes a first pressure-sensitive adhesive layer having a first surface and an opposite second surface, the first pressure-sensitive adhesive layer comprising a poly(meth)acrylate polymer and epoxy-functionalized nanoparticles. The article also includes a first primer layer, the first primer layer comprising a thermoplastic polymer binder. The first primer layer is positioned between the first surface of the foam layer and the second surface of the first pressure-sensitive adhesive layer. Components comprising such articles are also disclosed herein.

Device (1) for attaching a printing plate to a printing cylinder, wherein the device comprises a cylindrical support with a surface oriented towards the printing plate and a pressure-sensitive adhesive layer arranged on this surface, wherein the pressure-sensitive adhesive layer has a surface oriented towards the printing plate and this surface comprises at least one more strongly adhesive region (3) and at least one less strongly adhesive region (2), in each case based on the adhesive strength to PET, determined as described herein; characterized in that the more strongly adhesive region (3) has a ratio of its maximum extent parallel to the axis of rotation of the carrier to its maximum extent perpendicular to the axis of rotation of the carrier of at least 3:1.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the décor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

A sleeve (10) for mounting on a mandrel of a commercial printing machine may include different annular regions that are simultaneously integrally formed into a unitary structure without the need to form the mandrel and without the need to adhere to each other in a manufacturing step separate from the manufacturing of each annular region of the finished sleeve. A 3D printing machine and method suitable for use in one or more of the flexible packaging industry, the lithographic printing industry, the publication printing industry, the decoration printing industry, and the corrugation printing industry employ a build plate descending from a horizontal printing plane at which a 3D printing material is applied to one or more of the flexible packaging industry, the lithographic printing industry, the publication printing industry, the decoration printing industry, and the corrugation printing industry. Each of the plurality of printheads extrudes a strand cycle of thermoplastic material onto a strand cycle immediately below the sleeve.

An actinic radiation and / or thermally curable composition (I) for composite material comprising: (A) at least 20 wt % of compound A comprising at least 2 ethylenically unsaturated moieties and a structural moiety; (B) at least 20 wt % of compound B comprising at least 2 ethylenically unsaturated moieties and a cycloaliphatic structure or heterocyclic aliphatic structure; (C) from 1 to 40 wt % of a compound C different from compound A and B containing essentially one ethylenically unsaturated moiety and having a viscosity of less than 100 mPa·s measured at 25° C., preferably below 50 mPa·s. even more preferably below 25 mPa·s; and (D) from 0 to 20 wt % of a compound D, comprising at least one ethylenically unsaturated moiety, and which is different from compound A, B and C; whereby the total of compound B and A have a content of from 60 to 99 wt % in view of the total content of compounds A. B, C and optionally D.

An actinic radiation curable and / or heat curable composition (I) for composite materials comprising: (A) at least 20 wt% of a compound A comprising at least 2 ethylenically unsaturated moieties and a structural moiety; (B) at least 20 wt% of a compound B comprising at least 2 ethylenically unsaturated moieties and an alicyclic or heterocyclic aliphatic structure; (C) 1-40 wt% of a compound C different from compounds A and B, comprising substantially one ethylenically unsaturated moiety and having a viscosity of less than 100 mPa.s, preferably less than 50 mPa.s, even more preferably less than 25 mPa.s, determined at 25 DEG C; and (D) 0-20 wt% of a compound D different from compounds A, B and C, comprising at least one ethylenically unsaturated moiety; wherein the total content of compounds B and A is 60-99 wt% with respect to the total content of compounds A, B, C and optionally D.

The present invention is directed to relief precursors with an enhanced capacity to be developed into high performing relief structures, more in particular high quality relief structures such as printing plates. Thereto, it provides a photosensitive composition (PC) for forming a photosensitive layer of a relief precursor (RP), comprising particular stabilizers and binders. By including the stabilizer and binder as described herein, it was found that the stability of the melt of the photosensitive composition during production, e.g. production by extrusion, could be enhanced significantly. Surprisingly, such enhanced stability could be achieved without or with minimal undesired impact on the resulting printing performance and / or imaging characteristics of the reliefs formed by developing the relief precursors.

The present invention is directed to relief precursors with an enhanced capacity to be developed into high performing relief structures, more in particular high quality relief structures such as printing plates. Thereto, it provides a photosensitive composition (PC) for forming a photosensitive layer of a relief precursor (RP), comprising particular stabilizers and binders. By including the stabilizer and binder as described herein, it was found that the stability of the melt of the photosensitive composition during production, e.g. production by extrusion, could be enhanced significantly. Surprisingly, such enhanced stability could be achieved without or with minimal undesired impact on the resulting printing performance and / or imaging characteristics of the reliefs formed by developing the relief precursors.