My first screen printing......

     Screen printing (also known as silk screening) is one of the oldest methods of printmaking, with examples dating back to the Song Dynasty in China.  The process involves creating a stencil of an image on a screen of porous mesh, traditionally made of silk.  A roller or squeegee is used to pull paint-like ink over the stencil, forcing it through the mesh onto the paper being printed.  Unlike the inks used in some other forms of printing, screen printing ink sits right on the surface of paper, resulting in incredibly rich, vibrant color.

    First, I was draw the Scrat outline which is the characters from ice age. then using knife to cut the inside space. Second, I stick on to the canvas waiting until to dry. Third, I align the paper for printing, and mark the location with registration tabs.  Ink is applied directly to one end of the screen in a long bead, ready to be pulled over the screen with the squeegee. At last firm pass with the squeegee forces ink through the mesh, visibly showing on the print side of the screen.  The screen is lowered on the hinges, and the squeegee is used to press the inked mesh flat against the paper, transferring a thin, even layer of ink to the page.

There is a few research I did before for screen printing....... and some screen printing of portrait.

Also there is really good video of screen printing......
http://vimeo.com/17353251
and another website of screen printing.....
http://art-wear.org/blog/