DE202008009068U1 - Gravure printing or embossing mold as sleeve or cylinder - Google Patents

Abstract

low-pressure or embossing mold as sleeve or cylinder, characterized that for the gravure or embossing die one after the other a functional layer (2) either made of or with a conductive Polymer and a structured layer (3) of a galvanically applied Metal are arranged.

Description

The Invention relates to gravure or embossing forms as a sleeve or cylinder.

One Main focus in the realization of gravure or embossing forms applies to the material used and the weight of the axle cylinder used.

So is by the document DE 690 12 605 T2 (Process for the production of plastic cylinders for printing, in particular for gravure printing and flexographic printing and the cylinder thus obtained) a plastic cylinder with a rigid inner tube and a plastic coating applied thereto, which is coated on the surface with a conductive material and then galvanized known. The multiple coating of the inner tube is not easy to implement. It is mainly interpretable only for small cylinder circumferences.

Through the publication DE 602 02 670 T2 (Production of printing cylinders), a printing cylinder is known, wherein a solid roller body made of polyurethane is injected around a steel shaft inserted into a mold. The plastic surface is prepared by means of conductive paint for the galvanic coating and then copper or chrome plated. The applied metal-plastic matrix is not optimally designed for the different thermal expansion coefficients of the materials used. At different temperatures there are qualitative limitations of the printed image in the form of distortions. In order to be able to electroplate the printing form, the plastic surface must be rendered conductive. This is done via the conductive ink, which is not readily applicable with a constant layer thickness. Furthermore, this has a low conductivity.

Of the The protection claimed in claim 1 is based on the object a gravure or embossing mold as a sleeve or cylinder easy to make.

These Task is with the features listed in the protection claim 1 solved.

The Draw gravure or embossing forms as sleeve or cylinder particular by a simple production.

To are successively for the gravure or embossing mold a functional layer either made of or with a conductive Polymer and a structured layer of an electrodeposited metal arranged.

The Ensures functional layer of a conductive polymer, that a structurable layer are applied galvanically can.

These Functional layer can advantageously be on a support roller or a sleeve base sleeve as a support structure.

The structured layer is made of a metal, the hardness through the or a final chrome layer on the structured layer is ensured.

One Another significant advantage is the reusability the support structure as a support roller or sleeve base sleeve by removing the structured layer. On the functional layer is a structurable layer applied galvanically. After structuring This can be used as a new gravure or embossing mold become.

advantageous Embodiments of the invention are in the claims 2 to 9 indicated.

• – einem intrinsisch elektrisch leitfähigen Polymer,
• – mit wenigstens einem elektrisch leitfähigen Füllstoff versehenem Polymer

oder

• – wenigstens einer Kombination dieser Polymere als elektrisch leitfähige Funktionsschicht.

The functional layer is advantageously made according to the embodiment of the protection claim 2

• An intrinsically electrically conductive polymer,
• - With at least one electrically conductive filler provided polymer

or

• - At least a combination of these polymers as electrically conductive functional layer.

Cheap conductive fillers are after training of the protection claim 3 ent neither carbon-based fillers or metal particles. The former are, for example, carbon nanotubes.

The structured layer exists after the development of the protection claim 4 in particular of copper, a copper alloy, zinc or a zinc alloy or is a chrome layer. In particular, a layer of copper or zinc can be made by applying known removal techniques simply structure. Such techniques are etching, Engraving, milling or ablation by applying the Surface with either electromagnetic waves or an electron beam.

On the structured layer, in particular of copper, a copper alloy, Zinc or a zinc alloy is located after the development of the Protection claim 5 a the hardness of the gravure or embossing mold ensuring chrome layer.

The functional layer and the structured layer are according to the embodiment of the protection claim 6 on a support as a cylinder, for example, an axle, or pipe advantage optionally made of steel, a fiber composite, aluminum, an aluminum alloy, nickel, a nickel alloy or a foamed metal. The carrier acts as a support structure.

Especially lightweight and thus easy to handle support structures can through the use of fiber composites or foamed metals will be realized.

Of the Carrier is according to the embodiment of the protection claim. 7 a carrier roll, for example an axle cylinder, on successively the functional layer and the structured layer are arranged. This is advantageously a gravure or embossing mold realized as a cylinder.

To the development of the protection claim 8 is advantageously a sleeve from the carrier as a tube, the functional layer and the structured layer.

At the face of the wearer is after the development of the Protection claim 9 arranged a transponder. This is related with a reader a component of an RFID (Radio Frequency Indentification) system. The transponder itself represents a passive one Transmitting and receiving device for electromagnetic Rays, which is interconnected with a memory. The memory Contains the gravure or embossing form characterizing Dates. In addition, data can also be used for Align as positioning aid in memory. advantageously, the transponder itself can be used as a positioning aid for alignment the gravure or embossing mold can be used.

One Embodiment of the invention is in the drawings each represented in principle and will be closer in the following described.

It demonstrate:

1 a section of a sleeve for a gravure mold and

2 a section of a gravure cylinder.

A gravure form as a sleeve or cylinder consists essentially of a support structure with a functional layer 2 , a structured layer 3 and a final chrome layer 4 ,

The 1 shows a section of a sleeve for a gravure printing in a schematic representation.

The support structure is a tube as a sleeve base sleeve 1 steel, a fiber composite, aluminum, an aluminum alloy, nickel, a nickel alloy or a foamed metal.

On this support structure is the functional layer 2 arranged. This is a layer either made of or with a conductive polymer, so that the functional layer itself is electrically conductive. For this purpose, it is provided with at least one electrically conductive filler. Such fillers are the particles which ensure electrical conductivity, for example based on carbon or of a metal. On this functional layer 2 is the electroplated structured layer 3 , which consists in particular of copper, zinc or chromium. This layer 3 is structured with known technologies. This is in particular the etching, engraving, milling or impingement of the surface area by area with electromagnetic radiation or an electron beam.

On the textured layer 3 is a chrome layer 4 arranged.

In order to is a sleeve for a gravure mold realized.

Instead of the support structure as a tube, this can in one embodiment, a roller as a support roller 5 be. The carrier roll 5 consists of steel, a fiber composite material, aluminum, an aluminum alloy, nickel, a nickel alloy or a foamed metal. On top of that are the functional layer 2 and the structured layer 3 of the embodiment arranged. On the textured layer 3 is the final chromium layer 4 ,

In order to a gravure roll is realized.

The 2 shows a section of a gravure cylinder in a schematic representation.

In a further embodiment of the embodiment can be arranged on the front side of the carrier a transponder be. A transponder essentially consists of a transmitter and receiving means for electromagnetic radiation, the is interconnected with a memory. For reading or writing the memory of the transponder is part of an RFID (Radio Frequency Identification) system.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 69012605 T2 [0003]
• - DE 60202670 T2 [0004]

Claims (9)

Gravure printing or embossing mold as sleeve or cylinder, characterized in that for the gravure or embossing mold successively a functional layer ( 2 ) either of or with a conductive polymer and a structured layer ( 3 ) are arranged from a galvanically applied metal. Gravure printing or embossing mold according to protection claim 1, characterized in that the functional layer ( 2 ) consists of an intrinsically electrically conductive polymer that the functional layer ( 2 ) is a polymer provided with at least one electrically conductive filler or that the functional layer ( 2 ) at least one combination of these functional layers ( 2 ). Gravure printing or embossing mold for protection claim 2, characterized in that either conductive fillers based on carbon or metal particles are fillers. Gravure printing or embossing mold according to protection claim 1, characterized in that the structured layer ( 3 ) consists in particular of copper, a copper alloy, zinc or a zinc alloy or that the structured layer ( 3 ) is a chromium layer. Gravure printing or embossing mold according to protection Claim 4, characterized in that on the structured layer ( 3 ) in particular of copper, a copper alloy, zinc or a zinc alloy, a chromium layer ( 4 ) is located. Gravure printing or embossing mold according to protection claim 1, characterized in that the functional layer ( 2 ) and the structured layer ( 3 ) on a support as a cylinder or tube made of steel, a fiber composite material, aluminum, an aluminum alloy, nickel, a nickel alloy or a foamed metal. Gravure printing or embossing mold according to protection claim 1 and 6, characterized in that the carrier is a carrier roll ( 5 ) and that successively the functional layer ( 2 ) and the structured layer ( 3 ) are arranged. Gravure printing or embossing mold according to protection claims 1 and 6, characterized in that a sleeve of the carrier as a tube as a sleeve base sleeve ( 1 ), the functional layer ( 2 ) and the structured layer ( 3 ) consists. Gravure printing or embossing mold for protection claim 1, characterized in that on the front side of the carrier a transponder is arranged.