Screen Printing Scrub
Screen Printing Scrub
A postcard may look deceptively simple and rather low on the ladder of publicity media. Nevertheless, for those who have realized the power it carries, a postcard is one of the most effective and direct means of getting your message across - whether it is to announce a new grand sale of the season, information about your internet presence, details about a particular issue that needs to drum up public awareness or just a message of any kind.
A postcard, as defined in postal terminology, is a typically rectangular piece of thick paper or thin cardboard intended for writing and mailing without the need for an envelope and at a lower rate than a regular letter. While postcards are generally issued by post offices, they can also be printed by private companies, individuals or even large organizations provided they adhere to the physical specifications and other guidelines laid down by the postal department. The collecting and study of postcards is termed deltiology.
Custom postcards can be printed using a traditional offset press, using film. To make its presence felt a postcard must necessarily have a striking and colorful image. Compared to most other media of advertising, postcards are easily produced and the biggest advantage they have in their favor is that they cannot be thrown away or discarded without a glance as is the case with messages sent in envelopes. A postcard offers maximum visibility and this value is enhanced by the kind of artistic approach you adopt to make it as aesthetically appealing as possible. The combination of art and postcards is called mail art.
A marketing study indicates that the use of postcards to spread information and advertise products is most useful for self-employed individuals, small and mid-size business entrepreneurs, traditional corporations and institutions that need to reach out on a large scale as for example, a group promoting vegetarianism or an organization fighting to save whale.
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screen printing questions...?
allright, I'm about ready to try the photo emulsion technique for making up screens, and I have a couple of questions-
1.) Can I substitute tracing paper with the design drawn in with a black felt tip pen in place of the acetate (transparencies)? and
2.)If I make up a screen using photo emulsion, can I scrub it out later with Comet and a bristle brush like with the screen filler method, in order to re-use the screen for different designs, or is the screen permanent?
I'm using stuff from speedball's SP kit, according to their instructions, I can use tracing paper and the solution can be washed out within a month. I'm curios if anybody knows for a fact that this will work.
Tracing paper is a not a good idea the instructions should have said "tracing vellum paper" vellum is a special paper designed to allow light through. What light source are you using to burn the image? If you are using a natural light source then I would not attempt it. You can buy transparencies films from office supply stores that are clear and buy a opaquer pen as the felt tip will not be dark enough. Also the felt tip will bleed; lines will be fuzzy, on vellum.
You can clean the screen that way but man is that a lot of work. Make sure to break the comet down to a loose paste before putting in the screen. It is also good to scrub your screen down before using it for the first time to degrease the screen. Make sure to clean all comet out of the screen before using emulsion. The best way would be to soak the screen in water then scrub with comet as lightly as possible the pressure wash the image out of the screen. As scrubbing will scratch your mesh. I would not leave an image in your mesh for a month as you do not have the chemicals to remove the ghost image that will appear. After printing you must remove all ink from the screen. Tape the edges of the screen from the screen to the inside of the frame. This will make it so that the ink will not get into the edge between the screen and the frame, as that will change the next color you print with.
Tips: use a computer to make your graphics then put the graphics on the transparencies, laser works the best, make sure the transparencies are lying flat when curing emulsion as you should have a vacuum table to shoot the screen. Any gap between the film and screen will destroy your image.
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