DE1996068U - PRINT CLOTH. - Google Patents

Description

P.A.ti1E7 "* 13.?. 68

PHOENIX RUBBER WORKS RECEIVER HAMDURQ-HARBURO DLAH SHARED COMPANY

Hamburg-Harburg German Patent Office

Px Munich 2 July 16, 1901

Printing blanket.

The innovation concerns a printing blanket for graphic purposes, which consists of several layers of rubber and reinforcing layers.

The increasing demands on printing blankets with regard to high Lifespan and constant workability have resulted in insoles and rubber layers being repeatedly improved have been. Nevertheless, the improvement of the dimensional accuracy of the Drucktuohes and the prevention of a Tendons nipped in all directions. Me known so far or improvements made have not yet been able to fully meet these requirements

The task of the innovation is with regard to dimensional accuracy and low elongation to achieve a further improvement in printing blankets.

The solution to this problem is that at least one of the reinforcement layers consists of a polyester film. Such known per se Polytstorfolien preferably exist made of polyterephthalic acid slycoxester «During manufacture they are stretched in the direction of the web and at right angles to it to obtain increased strength. Me rubber used for the printing blanket »! can loop through known ones Measures must be taken to ensure adequate adhesion between rubber and polyester film * If necessary, auoh a pretreatment of the polyester film can be carried out. For the upper rubber layer accessible to the printing inks de The printing blanket is preferably a copolymer of butadiene-acrylonitrile used. "This is against a solution approach. those used for the print colors, resistant to the If necessary, polyester film can also consist of several thin individual films, but the total thickness of the Blanket remain constant.

Claims (3)

PA 418 741 * 18? 6Β PHOEKIXOUMMIWERKE RECEIVER Ι · Π · T 'HAMBORG-HÄRBURg "' 1BLATi AKTIENQESELLSCHAFT HAMBUBG-HARBURQ German Patent Office Px Munich July 2, 1968 Protection claims 1. Printing blanket, consisting of several rubber layers and Reinforcement layers, characterized in that at least a reinforcement layer consists of a polyester film (4). 2. Printing blanket according to spoke 1, characterized in that the underside of the printing blanket made of a polyester film 3. Printing blanket according to claims 1 and 2, characterized in that the underside of the printing blanket with a Zlebachicht (6) is provided. «OUR / 20105. PHOENIX RUBBER WORKS SHARED COMPANY HAMBURG-HARBURG OI76 Px RECIPIENT German Patent Office
Munich 2 HAMBUSG-HARBURQ I6.7.I968 SHEET The underside of the printed paper can also be covered with a polyester film be equipped to keep the deformation in the blanket as low as possible. Should the printing blanket be glued on, so the polyester film can also be provided with an adhesive layer. In this case there is also a protective film intended. The structure of the printing blanket according to the innovation is described in a figure, for example. The cross section shows the superimposed layers. Layer 1 consists of a vulcanized butadiene-acrylic acid nitride-hisehpolymerieat. It is particularly thick in relation to the other layers. Underneath is a layer of cotton fabric2. This is followed by a layer 3 made of rubber and a film made of polyterephthalic acid glycol ester. This film is adhesively bonded to the two adjacent layers. Underneath lies a layer 5 made of a vulcanized rubber mixture. An adhesive layer 6 can be provided with a protective film for transport. / 3 001.1 «/ 26153.