I hope I get this right... At least this will give you an idea. I hope its not too long...
Several artists submit ideas/drawings. One is chosen... Then another artist/designer has to separate the drawing into several different pages (???) by color (This is a very time consuming process.). From each page a silk screen is made (and again this is another process in itself and it sounds like its similar to etching in jewelery making); one screen for each color.
The demonstration is done with (or on) a special table and two scarves are made at a time.
A screen is placed about a milimeter above the fabric. The ink (like a colored glue) is placed along one end of the screen. The maker takes a squeegy and pushes the ink once forward and once backward careful to use the same amount of pressure each time. He then removes that screen and places another screen with the next ink and repeats the process. The go from darkest colors to lightest colors. The ink is thicker for finer areas and thiner for larger area.
He made two different scarves while we were there; one with 8 colors and one with 10.
After they are done it also goes through other processes (a giant steamer to set the color...).
However, at the factory 100 meters of silk is used and several scarves are made at once and they do have a machine that pushes the ink back and forth.
Quality Control: There is an approximate 2% error rate and those scarves that don't pass are destroyed at the factory.
I may have to go back and watch again. It was truly incredible.