What Is a Web Plate?

Screen version, also known as "screen", "mesh version", "network cable version". Optical tools for photoengraving.

Screen

Right!

Screen version, also known as "screen", "mesh version", "network cable version". Optical tools for photoengraving.

Chinese name

Screen

Also known as

"Screen" "mesh version" "network cable version"

Concept

Optical tools for photoengraving

Common types

Letterpress and platemaking

Letterpress and

Direct platemaking

Direct plate making method

Method: Apply a certain thickness of photosensitive paste (usually a diazonium salt photosensitive paste) to the stretched screen plate, dry it after coating, and then use a plate-making film and its lamination to put it into the exposure machine, and develop and rinse After drying, it will become screen printing screen.

Process flow: Photosensitive paste preparation has stretched the net-degreasing-drying-coating film-drying-exposure-development-drying-revision-final exposure-sealing net

Direct plate making method of photosensitive film

Method: The photosensitive film is commonly known as water film, which is based on a transparent plastic film with a thickness of 0.1mm. It is made by coating a layer of photosensitive emulsion on one side of the film. When used, the screen is fully wetted and then applied. The upper film is attached to the screen by capillary action. After drying, the plastic film base is torn off for exposure and development, and finally the required pattern is obtained.

Process flow: stretched net-degreasing-wet-film-drying-reinforcement-exposure-development-drying-revision-sealing net

2.Direct indirect plate making method

Method The method of direct and indirect plate-making is to place the wrist-coated photosensitive film coated with photosensitive material on the work surface first, and place the stretched wrist-screen frame on the substrate, and then place it in the screen frame. The photosensitive paste is applied and pressure-coated with a soft blade. After drying, the plastic film base is peeled off, and the photosensitive film wrist screen is attached to the printing plate. After development and drying, a screen printing screen is made.

Process flow: stretched net-degreasing-drying-peeling film base-exposure-development-drying-revision-sealing net

3. Indirect plate making method

Method The method of indirect plate making is to first expose the indirect film, harden it with 1.2% H2O2, develop it with warm water, dry it to make a peelable graphic negative, and make the graphic negative film film surface and the stretched silk screen tightly when making the plate. The adhesive film and the wet screen are compacted by pressing, the film base is peeled off, and the screen printing screen is made by air drying.