For your packaging solutions call
01543 423 838
110 Anglesey Business Park,
Littleworth Road,
Hednesford,
Staffordshire,
WS12 1NR
E: enquiries@weedonpsc.com
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Weedon PSC News
Weedon PSC Creates Carry Pack Design for Local Brewery
Green Consumers Would Give Up Packaging
Weedon PSC Shelf Ready Tray Design Innovation
Weedon PSC Online Joins Forces with The Packaging Store for Standard Packaging Products
Weedon PSC launch Carbon Lite packaging range
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Screenprinting at Weedon PSC
What is Screenprinting?
Screenprinting is a process through which ink is mechanically applied to a substrate via a screen and squeegee. Screen printing is a very simple process.
Each colour of the design requires an individual screen so you must separate the design into its component colours. This is done on the computer and each colour separation is printed to a transparent sheet.
Next the screens must be prepared. The screen has a fine monofilament nylon mesh stretched over it. This mesh is then coated with a light sensitive emulsion that will become the stencil through which the ink will pass when printed.
The screen is then mounted, with the separation, in an exposure unit. This machine exposes the screen to high intensity UV light.
When the UV light hits the emulsion a chemical reaction hardens the emulsion making it water and solvent resistant. The separation acts as a shield to block the light in certain areas of the screen. These soft areas are then rinsed away with water to create the open area of the stencil.
The screens are then mounted in the press and registered, or aligned, so that each color prints in the proper location relative to the other colors. Ink is loaded into the screens and squeegees are installed.
The actual printing is accomplished by pushing ink through the screen and onto the surface with the squeegees. As the squeegee scrapes across the screen it fills the stencil with ink while simultaneously bending the mesh down to transfer the ink to the board.