PRINTING PLATES

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Letterpress Printing Plates

Flexographic PrintingPlates

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A printing system has four independent components: a press, an image carrier, ink and paper or other substrates to carry a message. The image carrier is the printing plate in traditional printing processes. The processes in which photopolymer plates are used to carry ink and transfer it to the substrate are lithography, flexography , letterpress and gravure.

 

            Although most printing plates are sold as solid plates, liquid photopolymers are also available to make flexographic and letterpress printing plates. 

             Lithographic plates are planographic plates which are also known as offset plates.  Photopolymer-based litho plates mainly compete with diazo plates.

             In letterpress plates, the face of image elements is raised above open areas.  Here photopolymer plates have replaced stereotypes and metal plates.  In dry offset plates, also called letterset plates, an intermediate blanket cylinder is used to transfer the image to the substrate.

            Flexographic plates are similar to letterpress plates except the image career is elastomeric.  Photopolymers have replaced bulk of rubber-based flexo plates.

             

MANUFACTURERS:

LITHOGRAPHIC PLATES

Agfa

Eastman Kodak Co.

Fujifilm

Southern Lithoplate

 

FLEXOGRAPHIC AND LETTERPRESS SOLID PLATES

Asahi Chemical, Japan

DuPont Imaging Technologies

Eastman Kodak Co.

MacDermid Printing Solutions

Flint Group, Germany

Lucky HuaGuang Graphics Co., China

Toyobo Co., Japan.

 

 

LIQUID PHOTOPOLYMERS

Anderson & Vreeland

Asahi Chemical, Japan

Chemence Ltd, U.K.

Exell, Italy

Kivi Markings, India

MacDermid Printing Solutions

Photocentric Ltd., U.K.

SK Corp., South Korea

Thermoflan SA, France

 Copyright Savla Associates

(Under Revision)

 

 

 

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